JPH0762610B2 - Road surface profile measuring device and its measuring method - Google Patents
Road surface profile measuring device and its measuring methodInfo
- Publication number
- JPH0762610B2 JPH0762610B2 JP2220402A JP22040290A JPH0762610B2 JP H0762610 B2 JPH0762610 B2 JP H0762610B2 JP 2220402 A JP2220402 A JP 2220402A JP 22040290 A JP22040290 A JP 22040290A JP H0762610 B2 JPH0762610 B2 JP H0762610B2
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- Prior art keywords
- horizontal member
- road surface
- respect
- horizontal
- detecting means
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Length Measuring Devices By Optical Means (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は路面表面形状測定装置に関する。The present invention relates to a road surface profile measuring device.
スパイクタイヤ装着車、大型トラック等による路面のは
つり、波打ち(轍)現象等により路面表面に凹凸部が形
成された場合、この凹凸部を修正するためには、その場
合、路面のプロファイルを測定する必要がある。If unevenness is formed on the road surface due to road surface wear due to a vehicle equipped with spiked tires, large trucks, etc., or wavy (rut) phenomenon, in order to correct this unevenness, in that case, measure the road surface profile. There is a need.
しかして、路面のプロファイル即ち路面を横切る方向の
路面の外輪郭の形状を測定する場合、従来では、第7図
に示すような測定装置にて測定していた。Therefore, when measuring the profile of the road surface, that is, the shape of the outer contour of the road surface in the direction crossing the road surface, conventionally, the measurement has been performed with a measuring device as shown in FIG.
即ち、この測定装置は、台車aと、該台車aの下面中央
に設けられる高さ検出手段bと、を備えたものであり、
該台車aを、第8図に示すように、路面cの長手方向に
直交する方向に矢印の如く走行させ、該検出手段bにて
路面cの変位量を検出するものである。ここで、検出手
段bとは、路面c上を転動するローラdを有し、該ロー
ラdが台車aの下面に枢着された保持体eに保持され、
ローラdが接触している部位の路面cの高さ位置を検出
するものである。That is, this measuring device is provided with a carriage a and a height detecting means b provided at the center of the lower surface of the carriage a,
As shown in FIG. 8, the carriage a is run in a direction orthogonal to the longitudinal direction of the road surface c as indicated by an arrow, and the detecting means b detects the displacement amount of the road surface c. Here, the detection means b has a roller d that rolls on the road surface c, and the roller d is held by a holding body e pivotally attached to the lower surface of the carriage a,
The height position of the road surface c of the portion in contact with the roller d is detected.
従って、この場合、検出した高さ位置は、移動用車輪f
…が形成する基準面に対するものであり、路面cには凹
凸が形成されているので、台車a…の位置により基準面
が変動し、検出されるデータは不正確なものとなり、ま
た、測定部位としては、路面cの長手方向に沿って所定
等ピッチとされ、その測定部位において台車aを該路面
cの長手方向と直交する横方向に走行させるものである
ので、第8図に示すように、所定等ピッチごとに矢印の
如く横方向に台車aを走行させなければならず、測定作
業に長時間を要していた。なお、第7図において、gは
台車aに搭載された記録計であって、検出データが記録
される。Therefore, in this case, the detected height position is the moving wheel f.
Since the reference surface is formed with respect to the reference surface, and the road surface c has irregularities, the reference surface changes depending on the position of the carriage a, and the detected data becomes inaccurate. As shown in FIG. 8, since the carriage a is run in the lateral direction orthogonal to the longitudinal direction of the road surface c at the measurement portion at a predetermined equal pitch along the longitudinal direction of the road surface c. The trolley a has to be moved in the lateral direction as indicated by the arrow at regular intervals, which requires a long time for the measurement work. In FIG. 7, g is a recorder mounted on the carriage a, on which detection data is recorded.
そこで、本発明では、高精度にかつ少ない時間で路面の
表面形状を測定できる路面表面形状測定装置を提供する
ことを目的とする。Therefore, it is an object of the present invention to provide a road surface surface shape measuring apparatus capable of measuring the surface shape of a road surface with high accuracy and in a short time.
上述の目的を達成するために、本発明に係る路面表面形
状測定装置は、測定すべき路面上を該路面の長手方向に
沿って走行する台車と;上記台車に、該台車の走行方向
と平行な軸心廻りに揺動自在として一端部が枢着された
横方向の水平部材と;該水平部材の水平面に対する傾き
を検出する検出器と、該水平部材の他端部に連設される
と共に該検出器からの検出信号により該他端部を上下に
揺動させて該水平部材を常時水平に保持する上下動機構
と、からなる水平保持機構と;上記水平部材に該水平部
材の長手方向に沿って、所定ピッチにて複数個配設され
て、該水平部材に対する路面表面の高さ位置を上記所定
ピッチごとの複数箇所にて検出する高さ検出手段と;設
定基準面に対して平行なレーザ光線を上記台車に向けて
照射するレーザ光線投光器と;該レーザ光線投光器から
のレーザ光線を受光して、上記設定基準面に対する上記
水平部材の高さ位置を検知するレベル検知手段と;上記
台車の走行距離を検出する走行距離検出手段と;該走行
距離検出手段にて検出された走行距離が所定値に達する
ごとに、上記レベル検知手段による設定基準面に対する
水平部材の高さ位置と、上記高さ検出手段による水平部
材に対する路面表面の高さ位置とに基づいて、上記設定
基準面に対する路面表面の変位量を演算する演算手段
と;を備えたものである。In order to achieve the above-mentioned object, a road surface profile measuring apparatus according to the present invention comprises a bogie that travels on a road surface to be measured along a longitudinal direction of the road surface; the bogie is parallel to the running direction of the bogie. A horizontal horizontal member whose one end is pivotally attached so as to be swingable about a horizontal axis; a detector that detects the inclination of the horizontal member with respect to the horizontal plane; and a detector that is connected to the other end of the horizontal member. A horizontal holding mechanism including a vertical movement mechanism for vertically holding the horizontal member by swinging the other end vertically according to a detection signal from the detector; and a longitudinal direction of the horizontal member on the horizontal member. A plurality of height detecting means are provided along a predetermined pitch to detect the height position of the road surface with respect to the horizontal member at a plurality of positions at the predetermined pitch; Laser light that irradiates the above trolley with various laser beams A light projecting device; a level detecting device that receives a laser beam from the laser beam projecting device and detects a height position of the horizontal member with respect to the reference plane; a traveling distance detecting device that detects a traveling distance of the carriage; Each time the travel distance detected by the travel distance detecting means reaches a predetermined value, the height position of the horizontal member with respect to the reference plane set by the level detecting means and the height of the road surface relative to the horizontal member by the height detecting means. Calculating means for calculating the amount of displacement of the road surface with respect to the set reference surface based on the position.
また、本発明に係る路面表面形状測定方法は、測定すべ
き路面上を該路面の長手方向に沿って走行する台車に、
水平部材を走行方向と直交する水平方向に沿って付設す
ると共に、該水平部材を、水平保持機構にて常時水平に
保持し、設定基準面に対して平行なレーザ光線を該台車
に照射し、かつ、上記台車の走行距離を走行距離検出手
段にて検出して、該台車の走行距離が所定値に達するご
とに、上記レーザ光線に基づいて、上記基準面に対する
上記水平部材の高さ位置を検出すると共に、該水平部材
に該水平部材の長手方向に沿って所定ピッチにて複数個
配設された高さ検出手段にて、上記路面の横方向に沿っ
て上記所定ピッチごとの複数箇所にて上記水平部材に対
する上記路面表面の高さ位置を検出し、水平部材に対す
る路面表面の高さ位置と基準面に対する水平部材の高さ
位置とに基づいて、上記路面の横方向に沿った上記所定
ピッチごとの複数箇所に於ける上記基準面に対する路面
表面の変位量を演算するものである。Further, the road surface shape measuring method according to the present invention, a dolly traveling on the road surface to be measured along the longitudinal direction of the road surface,
A horizontal member is provided along the horizontal direction orthogonal to the traveling direction, the horizontal member is always held horizontally by a horizontal holding mechanism, and the carriage is irradiated with a laser beam parallel to a set reference plane, And, the traveling distance of the carriage is detected by the traveling distance detecting means, and every time the traveling distance of the carriage reaches a predetermined value, the height position of the horizontal member with respect to the reference plane is determined based on the laser beam. A plurality of height detecting means are provided on the horizontal member at a predetermined pitch along the longitudinal direction of the horizontal member, and at a plurality of positions at the predetermined pitch along the lateral direction of the road surface. Detecting the height position of the road surface with respect to the horizontal member, and based on the height position of the road surface with respect to the horizontal member and the height position of the horizontal member with respect to the reference surface, the predetermined along the lateral direction of the road surface. Multiple per pitch It is intended for calculating the amount of displacement of the road surface with respect to at the reference plane at.
上述の装置によれば、水平保持機構により水平部材が常
時水平に保持されるため、水平部材に対する路面表面の
高さ位置を、水平部材の長手方向に沿って所定ピッチご
とに正確に検出することができ、路面の横方向(長手方
向と直交する方向)の表面形状を測定してゆくことがで
きる。しかも、測定された測定値は、変更することのな
い基準面を基準としているので、路面が傾斜している場
合には、基準面からの高さ位置を検出することによって
傾斜の度合いも測定することができ、正確なものとな
る。さらに、台車を路面上にて走行させ所定の走行距離
ごとに横方向の表面形状を測定してゆくことができるた
め、路面のほぼ全体を形状を測定できることとなる。According to the above-mentioned device, since the horizontal member is always held horizontally by the horizontal holding mechanism, it is possible to accurately detect the height position of the road surface with respect to the horizontal member at predetermined pitches along the longitudinal direction of the horizontal member. Therefore, the surface shape of the road surface in the lateral direction (direction orthogonal to the longitudinal direction) can be measured. Moreover, since the measured value is based on the reference surface that does not change, if the road surface is inclined, the degree of inclination is also measured by detecting the height position from the reference surface. You can and be accurate. Further, since it is possible to run the cart on the road surface and measure the surface shape in the lateral direction for each predetermined traveling distance, it is possible to measure the shape of almost the entire road surface.
また、上述の測定方法によれば、水平部材を水平保持機
構にて常時水平に保持するため、路面の横方向(長手方
向と直交する方向)の表面形状を正確に測定することが
できる。また、台車を、測定すべき路面上をその長手方
向に沿って走行させて走行距離検出手段にてその走行距
離を検出し、所定距離だけ走行したときに、レベル検知
手段からの信号及び高さ検出手段からの信号に基づいて
基準面に対する路面表面を変位量を演算することができ
るので、走行方向の所定間隔ごとに、横方向の表面形状
を正確に測定することができる。このため、路面のほぼ
全体の形状を測定できることとなる。Further, according to the above measuring method, since the horizontal member is always held horizontally by the horizontal holding mechanism, the surface shape of the road surface in the lateral direction (direction orthogonal to the longitudinal direction) can be accurately measured. In addition, when the trolley is run along the longitudinal direction on the road surface to be measured, the mileage is detected by the mileage detecting means, and when the mileage is traveled for a predetermined distance, the signal from the level detecting means and the height Since the displacement amount of the road surface with respect to the reference surface can be calculated based on the signal from the detecting means, the lateral surface shape can be accurately measured at every predetermined interval in the traveling direction. Therefore, almost the entire shape of the road surface can be measured.
以下、実施例を示す図面に基づいて本発明を詳説する。 Hereinafter, the present invention will be described in detail with reference to the drawings illustrating examples.
第1図は本発明に係る測定装置を示し、この装置は、測
定すべき路面1上を走行する台車2と、レーザ光線を台
車2に向けて照射するレーザ光線投光器3と、を備え、
該台車2が路面1上を第4図に示すように長手方向に沿
って矢印A方向に走行し、所定間隔ごとの横方向(矢印
B方向)(長手方向と直交する方向)の路面1の表面形
状を測定するものである。FIG. 1 shows a measuring apparatus according to the present invention, which comprises a carriage 2 traveling on a road surface 1 to be measured, and a laser beam projector 3 for irradiating a laser beam toward the carriage 2.
The trolley 2 travels on the road surface 1 in the direction of arrow A along the longitudinal direction as shown in FIG. 4, and the lateral direction (direction of arrow B) (direction orthogonal to the longitudinal direction) of the road surface 1 at predetermined intervals. The surface shape is measured.
しかして、台車2には、水平保持機構4を介して常時水
平に保持される水平部材5が付設され、該水平部材5に
は、該水平部材5に対する路面1の表面の高さ位置を、
該水平部材5の長手方向の所定間隔ごとに検出する複数
個の高さ検出手段21が設けられている。つまり、この装
置は、水平部材5に、該水平部材5の長手方向に沿っ
て、所定ピッチにて複数個配設されて、該水平部材5に
対する路面1表面の高さ位置を所定ピッチごとの複数箇
所にて検出する検出手段21を、備えている。Then, the carriage 2 is provided with a horizontal member 5 which is always held horizontally through the horizontal holding mechanism 4, and the horizontal member 5 is provided with a height position of the surface of the road surface 1 with respect to the horizontal member 5.
A plurality of height detecting means 21 for detecting at predetermined intervals in the longitudinal direction of the horizontal member 5 are provided. In other words, this device is arranged on the horizontal member 5 along the longitudinal direction of the horizontal member 5 at a predetermined pitch, and the height position of the surface of the road surface 1 with respect to the horizontal member 5 is set at predetermined pitches. The detection means 21 for detecting at a plurality of locations is provided.
ここで、水平部材5とは、台車2の走行方向と直交する
方向に配設される梁状体からなり、その一端部5aが台車
2に設けられた枢支軸7に揺動自在に枢着されるもので
あって、該水平部材5は一端部5aを中心に矢印C,Dの如
く揺動する。Here, the horizontal member 5 is composed of a beam-like member arranged in a direction orthogonal to the traveling direction of the carriage 2, and one end portion 5a of the horizontal member 5 is pivotally pivoted on a pivot shaft 7 provided on the carriage 2. The horizontal member 5 swings around the one end 5a as shown by arrows C and D.
つまり、この装置は、台車2に、該台車2の走行方向と
平行な軸神廻りに揺動自在として一端部5aが枢着される
水平部材5を、備えている。さらに、水平部材5の水平
面に対する傾きを検出する検出器16と、該水平部材5の
他端部5bに連設されると共に該検出器16からの検出信号
により該他端部5bを上下に揺動させて該水平部材5を常
時水平に保持する上下動機構8と、からなる水平保持機
構4を、備えている。具体的には、水平部材5の他端部
5bには、該他端部5bを上下に揺動させる上下動機構8が
連設され、該水平部材5が水平面に対して傾いた状態と
なったときに、該上下動機構8が駆動して他端部5bを上
下動させ該水平部材5を水平とする。即ち、上下動機構
8は、台車2に付設されるモータ9と、該モータ9の出
力軸の回転により回転するシャフト10と、該シャフト10
に螺合するナット部材11と、を備え、該ナット部材11と
水平部材5の他端部5bとは連結体12を介して枢結され
る。そして、モータ9の出力軸にはプーリー13が付設さ
れ、シャフト10の基端にはプーリー14が付設され、該プ
ーリー13,14にはベルト等の連結部材15が係止されてい
る。That is, this apparatus is provided with a horizontal member 5 on the bogie 2 to which one end 5a is pivotally mounted so as to be swingable around an axis parallel to the traveling direction of the bogie 2. Further, the detector 16 for detecting the inclination of the horizontal member 5 with respect to the horizontal plane is connected to the other end 5b of the horizontal member 5, and the detection signal from the detector 16 shakes the other end 5b up and down. A horizontal holding mechanism 4 including a vertical movement mechanism 8 that moves the horizontal member 5 and always holds the horizontal member 5 horizontally is provided. Specifically, the other end of the horizontal member 5
A vertical movement mechanism 8 for vertically swinging the other end portion 5b is connected to the 5b, and the vertical movement mechanism 8 is driven when the horizontal member 5 is tilted with respect to a horizontal plane. The other end 5b is moved up and down to make the horizontal member 5 horizontal. That is, the vertical movement mechanism 8 includes a motor 9 attached to the carriage 2, a shaft 10 rotated by rotation of an output shaft of the motor 9, and the shaft 10.
And a nut member 11 that is screwed into the nut member 11, and the nut member 11 and the other end portion 5b of the horizontal member 5 are pivotally connected to each other via a connecting body 12. A pulley 13 is attached to the output shaft of the motor 9, a pulley 14 is attached to the base end of the shaft 10, and a coupling member 15 such as a belt is locked to the pulleys 13 and 14.
従って、モータ9が駆動して出力軸が回転すれば、シャ
フト10が回転してそれにより該シャフト10に螺合してい
るナット部材11が上下動し、水平部材5は一端部5aを中
心に矢印C,Dの如く揺動する。Therefore, when the motor 9 is driven and the output shaft rotates, the shaft 10 rotates and the nut member 11 screwed onto the shaft 10 moves up and down, and the horizontal member 5 is centered on the one end 5a. Swing as shown by arrows C and D.
また、この水平部材5には該水平部材5の水平面に対す
る傾きを検出する検出器16が付設され、該検出器16から
の検出信号が上下動機構8に入力され、この検出信号に
基づいてモータ9の出力軸を回転させ、水平部材5を揺
動させる。即ち、第6図のフローチャート図に示すよう
に、検出器16にて水平部材5の水平面に対する傾きを検
出し、傾いていれば、上下動機構8を駆動させて水平部
材5を水平とし、傾いていなければ、上下動機構8を駆
動させずに、続いて検出器16による検出を行なう。従っ
て、検出器16と上下動機構8にて水平保持機構4が形成
され、この水平保持機構4によって水平部材5は常に水
平とされる。Further, a detector 16 for detecting the inclination of the horizontal member 5 with respect to the horizontal plane is attached to the horizontal member 5, and a detection signal from the detector 16 is input to the up-and-down moving mechanism 8, and a motor is generated based on this detection signal. The output shaft 9 is rotated to swing the horizontal member 5. That is, as shown in the flow chart of FIG. 6, the detector 16 detects the inclination of the horizontal member 5 with respect to the horizontal plane, and if it is inclined, the vertical movement mechanism 8 is driven to make the horizontal member 5 horizontal, If not, the up-and-down moving mechanism 8 is not driven, and detection by the detector 16 is performed subsequently. Therefore, the detector 16 and the vertical movement mechanism 8 form the horizontal holding mechanism 4, and the horizontal holding mechanism 4 keeps the horizontal member 5 horizontal.
また、高さ検出手段21は、この場合、垂直方向に上下動
する複数のスライド体6…を備えている。該スライド体
6は、第2図に示すように、水平部材5の垂直方向貫通
孔17にスライド自在として挿入されるスライドバー18
と、該スライドバー18の下端に付設されるローラ19と、
該スライドバー18の上端に付設される重り部20と、スラ
イドバー位置検出器22と、を備え、該スライドバー18が
常時路面1に接触するものである。即ち、この高さ検出
手段21は、設定基準値に対するスライドバー18の変位量
を検出することができるものであって、第5図に示すよ
うに、基準値を記憶する記憶手段23と、該スライドバー
位置検出器22からのデータと記憶手段23に記憶されてい
る基準値とを比較して該基準値に対する変位量を演算す
る演算器24と、をさらに備えている。Further, in this case, the height detecting means 21 includes a plurality of slide bodies 6 ... Which move vertically in the vertical direction. As shown in FIG. 2, the slide body 6 includes a slide bar 18 which is slidably inserted into a vertical through hole 17 of the horizontal member 5.
And a roller 19 attached to the lower end of the slide bar 18,
A weight portion 20 attached to the upper end of the slide bar 18 and a slide bar position detector 22 are provided, and the slide bar 18 constantly contacts the road surface 1. That is, the height detecting means 21 is capable of detecting the amount of displacement of the slide bar 18 with respect to the set reference value, and as shown in FIG. A calculator 24 is further provided, which compares the data from the slide bar position detector 22 with a reference value stored in the storage means 23 and calculates a displacement amount with respect to the reference value.
しかして、水平部材5には、レーザ光線投光器3からの
設定基準面S(第3図参照)に対して平行なレーザ光線
を受光して該水平部材5の設定基準面Sに対する高さ位
置を検知するレベル検知手段25が設けられている。即
ち、レベル検知手段25は、レーザ光線を受光する受光部
26と、該受光部26を該受光部26からの信号により自動的
に上下動させる上下動機構27と、を備え、レーザ光線を
常に受光部26の中心に照射させている。また、受光部26
は、例えばフォトトランジスタ等の受光素子を複数個上
下方向に配列したものであり、上下移動機構27は、シャ
フト28と、該シャフト28を保持する保持枠29と、該シャ
フト28を回転させるモータ30と、シャフト28の一端部に
付設されるロータリーエンコーダ等の検出器31と、を備
えたものであり、水平部材5から立設された支持脚32に
て支持されている。即ち、シャフト28の回転にて上下動
する受光部26の位置を、検出器31(受光部位置検出器)
にて検出するものであって、第5図に示すように、検出
器31からの出力信号と、基準面S設定値を記憶している
記憶手段34からの該設定値とを、演算器33に入力し、該
演算器33にて、該基準面Sに対する水平部材5の高さ位
置を演算する。Then, the horizontal member 5 receives the laser beam parallel to the set reference plane S (see FIG. 3) from the laser beam projector 3 and determines the height position of the horizontal member 5 with respect to the set reference plane S. Level detecting means 25 for detecting is provided. That is, the level detecting means 25 is a light receiving unit that receives a laser beam.
26 and a vertical movement mechanism 27 for automatically moving the light receiving unit 26 up and down according to a signal from the light receiving unit 26, and the laser beam is always applied to the center of the light receiving unit 26. In addition, the light receiving unit 26
Is a plurality of light receiving elements such as phototransistors arrayed in the vertical direction. The vertical movement mechanism 27 includes a shaft 28, a holding frame 29 that holds the shaft 28, and a motor 30 that rotates the shaft 28. And a detector 31 such as a rotary encoder attached to one end of the shaft 28, and is supported by a support leg 32 erected from the horizontal member 5. That is, the position of the light receiving unit 26 that moves up and down by the rotation of the shaft 28 is detected by the detector 31 (light receiving unit position detector).
5, the output signal from the detector 31 and the set value from the storage means 34 that stores the reference plane S set value are calculated by the calculator 33. Then, the calculator 33 calculates the height position of the horizontal member 5 with respect to the reference plane S.
また、台車2には、該台車2の走行距離を検出する走行
距離検出手段35が付設され、該台車2の走行距離を検出
することができる。即ち、走行距離検出手段35は、路面
1上を転動するローラ36と、該ローラ36の回転数を検出
するロータリーエンコーダ37と、を備えたものであり、
該ローラ36の回転数を検出することにより台車2の走行
距離を検出している。なお、ローラ36は、台車2に取付
けられる揺動体38に付設され、路面1に凹凸部を有して
いる場合においても、該凹凸部に対応して上下動し、常
時路面1に接触する。Further, the trolley 2 is provided with a mileage detecting means 35 for detecting the mileage of the trolley 2, so that the mileage of the trolley 2 can be detected. That is, the traveling distance detecting means 35 includes a roller 36 that rolls on the road surface 1, and a rotary encoder 37 that detects the number of rotations of the roller 36.
The traveling distance of the carriage 2 is detected by detecting the number of rotations of the roller 36. Even when the roller 36 is attached to the rocking member 38 attached to the carriage 2 and has an uneven portion on the road surface 1, the roller 36 moves up and down corresponding to the uneven portion and always contacts the road surface 1.
しかして、レベル検知手段25、高さ検出手段21及び走行
距離検出手段35の出力信号は、第5図に示すように演算
手段39に入力され、該演算手段39にて、走行距離検出手
段35にて検出された走行距離が所定値に達したときに、
レベル検知手段25からの信号と高さ検出手段21からの信
号とに基づいて、基準面Sに対する路面1表面の変位
量、つまり、各スライド体6…の路面接触点K…(第2
図参照)の基準面Sに対する高さ位置が演算される。即
ち、第3図に示すように、路面1の横方向に沿って所定
等ピッチごとの路面1の基準面Sに対する高さ寸法H…
を検出することができ、路面1の表面形状を測定するこ
とができる。この場合、レベル検知手段25と高さ検出手
段21の読込みタイミングは、走行距離検出手段35よりと
ることができる。例えば、50cmピッチで路面1の表面形
状を測定したい場合、台車2が50cm走行するごとに、走
行距離検出手段35から信号を送り、この信号が送り込ま
れた時点でレベル検知手段25と高さ検出手段21の検出信
号を読込んで演算を行なう。Then, the output signals of the level detecting means 25, the height detecting means 21, and the traveling distance detecting means 35 are input to the calculating means 39 as shown in FIG. 5, and the calculating means 39 causes the traveling distance detecting means 35 to operate. When the mileage detected at
Based on the signal from the level detecting means 25 and the signal from the height detecting means 21, the displacement amount of the surface of the road surface 1 with respect to the reference surface S, that is, the road surface contact point K of each slide body 6 ... (Second
The height position of the reference surface S) is calculated. That is, as shown in FIG. 3, the height dimension H of the road surface 1 with respect to the reference surface S at a predetermined equal pitch along the lateral direction of the road surface 1 ...
Can be detected, and the surface shape of the road surface 1 can be measured. In this case, the reading timing of the level detecting means 25 and the height detecting means 21 can be set by the traveling distance detecting means 35. For example, when it is desired to measure the surface shape of the road surface 1 at a pitch of 50 cm, every time the carriage 2 travels 50 cm, a signal is sent from the running distance detecting means 35, and at the time when this signal is sent, the level detecting means 25 and the height detecting means are detected. The detection signal of the means 21 is read and calculation is performed.
また、演算された測定値は、表示記憶手段40にて、記憶
され表示される。The calculated measured value is stored and displayed in the display storage means 40.
従って、上述の如く構成された測定装置によれば、台車
2を路面1の長手方向(第4図に示す矢印A方向)に走
行させつつ、所定等ピッチごとに、路面1の横方向(矢
印B方向)の表面形状を測定することができる。Therefore, according to the measuring device configured as described above, while the carriage 2 is traveling in the longitudinal direction of the road surface 1 (direction of arrow A shown in FIG. 4), the carriage 2 is moved in the lateral direction (arrow direction) of the road surface 1 at predetermined equal pitches. The surface shape in the B direction) can be measured.
なお、本発明は上述の実施例に限定されず、本発明の要
旨を逸脱しない範囲で設計変更自由であり、例えば、ス
ライド体6の配設ピッチ、配設数の変更は自由であり、
また、実施例ではスライド体6は、重り部20及びスライ
ドバー18の自重によりローラ19が路面1に接触させてい
るが、該スライド体6にバネ等の弾発部材を付設して、
該スライド体6を常時下方へ押圧するようにして、該ロ
ーラ19を常時路面1に接触させるようにするも自由であ
る。さらに、ローラ19に代えて路面1を摺動するスベリ
部材とするも自由である。また、高さ検出手段21として
は、スライド体6を使用せずに、路面1に向けて光を投
光し、該路面1にて反射された光を受光し、それによ
り、路面1の表面の水平部材5に対する上下方向位置を
検出する光学変位センサ等の数個を並列させて使用する
も好ましい。さらに、台車2としては、手押し式でもよ
いが、好ましくは自走式として基準線41(第4図参照)
に沿って長手方向(矢印A方向)に走行するように設定
する。It should be noted that the present invention is not limited to the above-described embodiments, and design changes can be freely made without departing from the scope of the present invention. For example, the arrangement pitch and the number of slide bodies 6 can be freely changed.
In the embodiment, the slide body 6 has the roller 19 in contact with the road surface 1 by the weight of the weight portion 20 and the slide bar 18, but the slide body 6 is provided with an elastic member such as a spring.
It is also free that the slide body 6 is constantly pressed downward so that the roller 19 is always in contact with the road surface 1. Furthermore, the roller 19 may be replaced with a sliding member that slides on the road surface 1. Further, as the height detecting means 21, without using the slide body 6, the light is projected toward the road surface 1 and the light reflected by the road surface 1 is received, whereby the surface of the road surface 1 is obtained. It is also preferable to use several optical displacement sensors or the like that detect the vertical position with respect to the horizontal member 5 in parallel. Further, the trolley 2 may be a push-pull type, but is preferably a self-propelled trolley line 41 (see FIG. 4).
Is set so that the vehicle travels in the longitudinal direction (direction of arrow A) along.
本発明は上述の如く構成されているので、以下に記載す
る著大な効果を奏する。Since the present invention is configured as described above, it has the significant effects described below.
基準面Sに対する路面1表面の高さ位置を、路面1
の横方向(長手方向と直交する方向)に沿って所定ピッ
チごとに複数箇所で正確かつ瞬時に検出することができ
る。The height position of the surface of the road surface 1 with respect to the reference plane S is
It is possible to detect accurately and instantaneously at a plurality of positions at a predetermined pitch along the lateral direction (direction orthogonal to the longitudinal direction).
路面1の横方向の表面形状を路面1の所定距離毎に
次々と測定することができる。これにより、路面1のほ
ぼ全体にわたって、その表面の形状を測定できる。The lateral surface shape of the road surface 1 can be measured one after another for each predetermined distance of the road surface 1. As a result, the surface shape can be measured over almost the entire road surface 1.
第1図は本発明の一実施例の簡略斜視図、第2図は要部
拡大断面図、第3図は路面の断面図、第4図は路面の簡
略平面図、第5図はブロック図、第6図はフローチャー
ト図である。第7図は従来例の簡略正面図、第8図は路
面の簡略平面図である。 1……路面、2……台車、3……レーザ光線投光器、4
……水平保持機構、5……水平部材、6……スライド
体、21……高さ検出手段、25……レベル検知手段、35…
…走行距離検出手段、39……演算手段、K……路面接触
点、S……基準面。FIG. 1 is a simplified perspective view of an embodiment of the present invention, FIG. 2 is an enlarged sectional view of an essential part, FIG. 3 is a sectional view of a road surface, FIG. 4 is a simplified plan view of the road surface, and FIG. 5 is a block diagram. FIG. 6 is a flowchart. FIG. 7 is a simplified front view of a conventional example, and FIG. 8 is a simplified plan view of a road surface. 1 ... Road surface, 2 ... Truck, 3 ... Laser beam projector, 4
…… Horizontal holding mechanism, 5 …… Horizontal member, 6 …… Slide body, 21 …… Height detection means, 25 …… Level detection means, 35 ・ ・ ・
... running distance detecting means, 39 ... computing means, K ... road surface contact point, S ... reference plane.
Claims (2)
に沿って走行うる台車2と、 上記台車2に、該台車2の走行方向と平行な軸心廻りに
揺動自在として一端部5aが枢着された横方向の水平部材
5と、 該水平部材5の水平面に対する傾きを検出する検出器16
と、該水平部材5の他端部5bに連設されると共に該検出
器16からの検出信号により該他端部5bを上下に揺動させ
て該水平部材5を常時水平に保持する上下動機構8と、
からなる水平保持機構4と、 上記水平部材5に該水平部材5の長手方向に沿って、所
定ピッチにて複数個配設されて、該水平部材5に対する
路面1表面の高さ位置を上記所定ピッチごとの複数箇所
にて検出する高さ検出手段21と、 設定基準面Sに対して平行なレーザ光線を上記台車2に
向けて照射するレーザ光線投光器3と、 該レーザ光線投光器3からのレーザ光線を受光して、上
記設定基準面Sに対する上記水平部材5の高さ位置を検
知するレベル検知手段25と、 上記台車2の走行距離を検出する走行距離検出手段35
と、 該走行距離検出手段35にて検出された走行距離が所定値
に達するごとに、上記レベル検知手段25による設定基準
面Sに対する水平部材5の高さ位置と、上記高さ検出手
段21による水平部材5に対する路面1表面の高さ位置と
に基づいて、上記設定基準面Sに対する路面1表面の変
位量を演算する演算手段39と、 を備えたことを特徴とする路面表面形状測定装置。1. A trolley 2 capable of traveling on a road surface 1 to be measured along a longitudinal direction of the road surface 1, and one end of the trolley 2 which is swingable about an axis parallel to the traveling direction of the trolley 2. A horizontal member 5 in which the portion 5a is pivotally attached and a detector 16 for detecting the inclination of the horizontal member 5 with respect to the horizontal plane.
And a vertical movement which is connected to the other end 5b of the horizontal member 5 and vertically swings the other end 5b in response to a detection signal from the detector 16 to keep the horizontal member 5 always horizontal. Mechanism 8;
A plurality of horizontal holding mechanisms 4 are provided on the horizontal member 5 along the longitudinal direction of the horizontal member 5 at a predetermined pitch, and the height position of the surface of the road surface 1 with respect to the horizontal member 5 is set to the predetermined position. Height detection means 21 for detecting at a plurality of points for each pitch, a laser beam projector 3 for irradiating the carriage 2 with a laser beam parallel to the set reference plane S, and a laser from the laser beam projector 3. Level detecting means 25 for receiving the light beam and detecting the height position of the horizontal member 5 with respect to the setting reference plane S, and traveling distance detecting means 35 for detecting the traveling distance of the carriage 2.
Every time the traveling distance detected by the traveling distance detecting means 35 reaches a predetermined value, the height position of the horizontal member 5 with respect to the reference plane S set by the level detecting means 25 and the height detecting means 21 are detected. A road surface shape measuring apparatus comprising: a calculation unit 39 for calculating the amount of displacement of the surface of the road 1 with respect to the set reference surface S based on the height position of the surface of the road 1 with respect to the horizontal member 5.
に沿って走行する台車2に、水平部材5を走行方向と直
交する水平方向に沿って付設すると共に、該水平部材5
を、水平保持機構4にて常時水平に保持し、設定基準面
Sに対して平行なレーザ光線を該台車2に照射し、か
つ、上記台車2の走行距離を走行距離検出手段35にて検
出して、該台車2の走行距離が所定値に達するごとに、
上記レーザ光線に基づいて、上記基準面Sに対する上記
水平部材5の高さ位置を検出すると共に、該水平部材5
に該水平部材5の長手方向に沿って所定ピッチにて複数
個配設された高さ検出手段21にて、上記路面1の横方向
に沿って上記所定ピッチごとの複数箇所にて上記水平部
材5に対する上記路面1表面の高さ位置を検出し、水平
部材5に対する路面1表面の高さ位置と基準面Sに対す
る水平部材5の高さ位置に基づいて、上記路面1の横方
向に沿った上記所定ピッチごとの複数箇所に於ける上記
基準面Sに対する路面1表面の変位量を演算することを
特徴とする路面表面形状測定方法。2. A horizontal member 5 is attached to a carriage 2 that travels on the road surface 1 to be measured along the longitudinal direction of the road surface 1, and the horizontal member 5 is attached along the horizontal direction orthogonal to the running direction.
Is always held horizontally by the horizontal holding mechanism 4, a laser beam parallel to the set reference plane S is applied to the carriage 2, and the traveling distance of the carriage 2 is detected by the traveling distance detecting means 35. Then, each time the traveling distance of the carriage 2 reaches a predetermined value,
The height position of the horizontal member 5 with respect to the reference plane S is detected based on the laser beam, and the horizontal member 5 is detected.
A plurality of height detecting means 21 are provided along the longitudinal direction of the horizontal member 5 at a predetermined pitch, and the horizontal members are provided at a plurality of positions at the predetermined pitch along the lateral direction of the road surface 1. 5, the height position of the surface of the road surface 1 with respect to 5 is detected, and based on the height position of the surface of the road surface 1 with respect to the horizontal member 5 and the height position of the horizontal member 5 with respect to the reference plane S, the direction along the lateral direction of the road surface 1 is determined. A method of measuring a road surface shape, which comprises calculating displacements of the surface of the road surface 1 with respect to the reference surface S at a plurality of positions at predetermined pitches.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2220402A JPH0762610B2 (en) | 1990-08-21 | 1990-08-21 | Road surface profile measuring device and its measuring method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2220402A JPH0762610B2 (en) | 1990-08-21 | 1990-08-21 | Road surface profile measuring device and its measuring method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04102006A JPH04102006A (en) | 1992-04-03 |
JPH0762610B2 true JPH0762610B2 (en) | 1995-07-05 |
Family
ID=16750555
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2220402A Expired - Lifetime JPH0762610B2 (en) | 1990-08-21 | 1990-08-21 | Road surface profile measuring device and its measuring method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0762610B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6154861B2 (en) * | 2015-09-02 | 2017-06-28 | 日本道路株式会社 | Road surface measuring device |
KR101995770B1 (en) * | 2017-09-05 | 2019-07-03 | 금호타이어 주식회사 | Multi disk type electric conductivity measuring equipment for tire tread |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60114707A (en) * | 1983-11-28 | 1985-06-21 | Niigata Eng Co Ltd | Apparatus for measuring flatness of surface of running road |
JPS61107107A (en) * | 1984-10-31 | 1986-05-26 | Sumitomo Rubber Ind Ltd | Apparatus for measuring and recording uneveness |
JPS6471904A (en) * | 1987-09-11 | 1989-03-16 | Railway Technical Res Inst | Method and device for measuring strain of structure |
-
1990
- 1990-08-21 JP JP2220402A patent/JPH0762610B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
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JPH04102006A (en) | 1992-04-03 |
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