JP2012112793A5 - - Google Patents

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JP2012112793A5
JP2012112793A5 JP2010261919A JP2010261919A JP2012112793A5 JP 2012112793 A5 JP2012112793 A5 JP 2012112793A5 JP 2010261919 A JP2010261919 A JP 2010261919A JP 2010261919 A JP2010261919 A JP 2010261919A JP 2012112793 A5 JP2012112793 A5 JP 2012112793A5
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road surface
surface shape
speed
measuring device
speed measuring
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JP2012112793A (en
JP5388997B2 (en
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Priority to US13/296,837 priority patent/US9052392B2/en
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本発明の速度計測装置によれば、
路面に対する移動体の速度を計測する速度計測装置であって、上記速度計測装置は、
上記移動体に設けられ、上記路面断面の上部形状を表す第１の路面形状データを取得する第１の路面形状センサと、
上記移動体の進行方向に沿って上記第１の路面形状センサから所定距離離れて上記移動体に設けられ、上記路面断面の上部形状を表す第２の路面形状データを取得する第２の路面形状センサと、
上記第１の路面形状センサによって異なる測定時間に取得された第１の路面形状データを蓄積して第１の蓄積データとして格納し、上記第２の路面形状センサによって異なる測定時間に取得された第２の路面形状データを蓄積して第２の蓄積データとして格納するメモリと、
上記メモリに格納された上記第１及び第２の蓄積データに基づいて、上記移動体の速度を計算する演算手段とを備え、
上記第１及び第２の路面形状センサのそれぞれは、電波を上記路面に放射して上記路面上の複数の構造物によって反射された各反射波の信号レベルと、上記電波を放射してから上記各反射波が戻るまでの伝搬時間とを測定することで、上記第１又は第２の路面形状データを取得し、
上記演算手段は、上記第１及び第２の蓄積データを比較し、上記第１の路面形状データと類似する上記第２の路面形状データが取得されるときの上記第１の路面形状データの測定時間と上記第２の路面形状データの測定時間との差を決定し、上記第１及び第２の路面形状センサ間の距離を上記測定時間の差で除算して上記移動体の速度を計算することを特徴とする。
According to the speed measuring device of the present invention,
A speed measuring device that measures the speed of a moving body relative to a road surface, wherein the speed measuring device is
A first road surface shape sensor that is provided in the moving body and acquires first road surface shape data representing an upper shape of the road surface section;
A second road surface shape that is provided in the mobile body at a predetermined distance from the first road surface shape sensor along the traveling direction of the mobile body and acquires second road surface shape data representing an upper shape of the road surface section. A sensor,
The first road surface shape data acquired at different measurement times by the first road surface shape sensor is accumulated and stored as first accumulated data, and the first road surface shape sensor acquired at different measurement times by the second road surface shape sensor. A memory for accumulating two road surface shape data and storing it as second accumulated data;
Computing means for calculating the speed of the moving body based on the first and second accumulated data stored in the memory;
Each of the first and second road surface shape sensors radiates radio waves to the road surface and is reflected by a plurality of structures on the road surface, and after radiating the radio waves, By measuring the propagation time until each reflected wave returns, the first or second road surface shape data is obtained,
The calculation means compares the first and second accumulated data, and measures the first road surface shape data when the second road surface shape data similar to the first road surface shape data is acquired. The difference between the time and the measurement time of the second road surface shape data is determined, and the speed of the moving object is calculated by dividing the distance between the first and second road surface shape sensors by the difference of the measurement time. It is characterized by that.

Claims (9)

路面に対する移動体の速度を計測する速度計測装置であって、上記速度計測装置は、
上記移動体に設けられ、上記路面断面の上部形状を表す第１の路面形状データを取得する第１の路面形状センサと、
上記移動体の進行方向に沿って上記第１の路面形状センサから所定距離離れて上記移動体に設けられ、上記路面断面の上部形状を表す第２の路面形状データを取得する第２の路面形状センサと、
上記第１の路面形状センサによって異なる測定時間に取得された第１の路面形状データを蓄積して第１の蓄積データとして格納し、上記第２の路面形状センサによって異なる測定時間に取得された第２の路面形状データを蓄積して第２の蓄積データとして格納するメモリと、
上記メモリに格納された上記第１及び第２の蓄積データに基づいて、上記移動体の速度を計算する演算手段とを備え、
上記第１及び第２の路面形状センサのそれぞれは、電波を上記路面に放射して上記路面上の複数の構造物によって反射された各反射波の信号レベルと、上記電波を放射してから上記各反射波が戻るまでの伝搬時間とを測定することで、上記第１又は第２の路面形状データを取得し、
上記演算手段は、上記第１及び第２の蓄積データを比較し、上記第１の路面形状データと類似する上記第２の路面形状データが取得されるときの上記第１の路面形状データの測定時間と上記第２の路面形状データの測定時間との差を決定し、上記第１及び第２の路面形状センサ間の距離を上記測定時間の差で除算して上記移動体の速度を計算することを特徴とする速度計測装置。 A speed measuring device that measures the speed of a moving body relative to a road surface, wherein the speed measuring device is
A first road surface shape sensor that is provided in the moving body and acquires first road surface shape data representing an upper shape of the road surface section;
A second road surface shape that is provided in the mobile body at a predetermined distance from the first road surface shape sensor along the traveling direction of the mobile body and acquires second road surface shape data representing an upper shape of the road surface section. A sensor,
The first road surface shape data acquired at different measurement times by the first road surface shape sensor is accumulated and stored as first accumulated data, and the first road surface shape sensor acquired at different measurement times by the second road surface shape sensor. A memory for accumulating two road surface shape data and storing it as second accumulated data;
Computing means for calculating the speed of the moving body based on the first and second accumulated data stored in the memory;
Each of the first and second road surface shape sensors radiates radio waves to the road surface and is reflected by a plurality of structures on the road surface, and after radiating the radio waves, By measuring the propagation time until each reflected wave returns, the first or second road surface shape data is obtained,
The calculation means compares the first and second accumulated data, and measures the first road surface shape data when the second road surface shape data similar to the first road surface shape data is acquired. The difference between the time and the measurement time of the second road surface shape data is determined, and the speed of the moving object is calculated by dividing the distance between the first and second road surface shape sensors by the difference of the measurement time. A speed measuring device characterized by that. 上記第１及び第２の路面形状センサのそれぞれは、当該路面形状センサからの距離が異なる上記路面上の複数の構造物によって反射された各反射波の信号レベルを測定することを特徴とする請求項１記載の速度計測装置。   Each of the first and second road surface shape sensors measures a signal level of each reflected wave reflected by a plurality of structures on the road surface having different distances from the road surface shape sensor. Item 2. The speed measuring device according to Item 1. 上記第１及び第２の路面形状センサのそれぞれは、当該路面形状センサが設けられた上記移動体の面と上記路面との間で異なる回数にわたって反射された各反射波の信号レベルを測定することを特徴とする請求項１記載の速度計測装置。   Each of the first and second road surface shape sensors measures the signal level of each reflected wave reflected a different number of times between the surface of the moving body provided with the road surface shape sensor and the road surface. The speed measuring device according to claim 1, wherein: 上記メモリは、上記第１及び第２の蓄積データを測定時間に関して間引くことによって、より長い測定時間にわたる上記第１及び第２の路面形状データを蓄積することを特徴とする請求項１〜３のうちのいずれか１つに記載の速度計測装置。   4. The memory according to claim 1, wherein the memory accumulates the first and second road surface shape data over a longer measurement time by thinning out the first and second accumulation data with respect to the measurement time. The speed measuring device according to any one of the above. 上記路面は、枕木及び締結装置を含む鉄道線路であることを特徴とする請求項１〜４のうちのいずれか１つに記載の速度計測装置。   The speed measurement device according to any one of claims 1 to 4, wherein the road surface is a railroad track including a sleeper and a fastening device. 上記路面は、レールを含む鉄道線路であり、上記第１及び第２の路面形状センサは、上記レールの長手方向に対して直交する偏波を有する電波を放射することを特徴とする請求項１〜５のうちのいずれか１つに記載の速度計測装置。   The road surface is a railroad track including a rail, and the first and second road surface shape sensors radiate radio waves having a polarization orthogonal to the longitudinal direction of the rail. The speed measuring device according to any one of? 上記第１及び第２の路面形状センサは、波長１０〜３０ｍｍを有する電波を放射することを特徴とする請求項１〜６のうちのいずれか１つに記載の速度計測装置。   The speed measuring device according to any one of claims 1 to 6, wherein the first and second road surface shape sensors emit radio waves having a wavelength of 10 to 30 mm. 上記路面に対する上記移動体の速度を計測するドップラー速度計をさらに備えたことを特徴とする請求項１〜７のうちのいずれか１つに記載の速度計測装置。   The speed measuring apparatus according to claim 1, further comprising a Doppler speedometer that measures a speed of the moving body with respect to the road surface. 上記演算手段は、上記計算された速度に基づいて所定時間の走行距離を計算し、上記計算された走行距離を積算することにより、所定の基準点からの上記移動体の積算走行距離を計算することを特徴とする請求項１〜８のうちのいずれか１つに記載の速度計測装置。   The calculation means calculates a travel distance for a predetermined time based on the calculated speed, and calculates the cumulative travel distance of the moving body from a predetermined reference point by integrating the calculated travel distance. The speed measuring device according to claim 1, wherein
JP2010261919A 2010-11-25 2010-11-25 Speed measuring device Active JP5388997B2 (en)

Priority Applications (2)

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JP2010261919A JP5388997B2 (en) 2010-11-25 2010-11-25 Speed measuring device
US13/296,837 US9052392B2 (en) 2010-11-25 2011-11-15 Velocity measurement apparatus capable of accurately measuring velocity of moving object relative to ground surface

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JP2012112793A5 true JP2012112793A5 (en) 2013-04-11
JP5388997B2 JP5388997B2 (en) 2014-01-15

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JP5550532B2 (en) * 2010-11-25 2014-07-16 三菱電機株式会社 Speed measuring device
JP6074322B2 (en) * 2013-06-05 2017-02-01 公益財団法人鉄道総合技術研究所 Speed measuring device
DE112014006393T5 (en) 2014-02-21 2016-11-17 Mitsubishi Electric Corporation Acceleration sensor and active noise control device
JP2020511346A (en) * 2017-02-23 2020-04-16 オート ドライブ ソリューションズ ソシーダッダ リミターダＡｕｔｏ Ｄｒｉｖｅ Ｓｏｌｕｔｉｏｎｓ， Ｓ．Ｌ． Speed control and track change detection system
CN114720718A (en) * 2022-03-18 2022-07-08 安徽省公路桥梁工程有限公司 Pavement speed measuring method

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