WO2016194375A1 - 橋梁異常検知装置 - Google Patents
橋梁異常検知装置 Download PDFInfo
- Publication number
- WO2016194375A1 WO2016194375A1 PCT/JP2016/002660 JP2016002660W WO2016194375A1 WO 2016194375 A1 WO2016194375 A1 WO 2016194375A1 JP 2016002660 W JP2016002660 W JP 2016002660W WO 2016194375 A1 WO2016194375 A1 WO 2016194375A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vibration
- bridge
- abnormality
- pair
- circuit
- Prior art date
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0066—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by exciting or detecting vibration or acceleration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0008—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings of bridges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0033—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining damage, crack or wear
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
Definitions
- the present disclosure relates to a bridge abnormality detection device, a detection method, and a monitoring system that detect abnormality of a railway bridge.
- railway bridges generally support superstructures such as bridge girders with at least four supports provided on the abutment. At the time of completion, each support is designed to support the superstructure evenly. However, since the support and the superstructure are not fixed, if ground subsidence occurs, the load applied to each support becomes uneven. Eventually, a gap is created between some of the bearings and the superstructure. If there is a gap between the bearing and the superstructure, the superstructure will rattle when the train passes and abnormal vibration will occur. Abnormal vibrations cause not only noise but also damage to the bridge.
- the problem of the present disclosure is to be able to realize a bridge abnormality detection device that can monitor abnormal vibration occurring in a bridge without providing a battery or power supply wiring.
- a first aspect of the bridge abnormality detection device of the present disclosure includes a pair of vibration sensors installed in a superstructure of a railway bridge supported by a plurality of supports corresponding to a pair of supports arranged in the width direction,
- the vibration sensor is provided with a detection circuit that outputs an abnormal signal based on a difference between output signals of the pair of vibration sensors, and an output circuit that receives the abnormal signal and notifies the abnormality to the outside.
- the driving power of the detection circuit is supplied from the vibration power generation element.
- the detection circuit includes a first capacitive element and a second capacitive element that are charged by the output of the vibration sensor, and an arithmetic circuit that obtains a difference between the output signals.
- the first capacitor element may store power for driving the arithmetic circuit, and the second capacitor element may generate a signal to be input to the arithmetic circuit.
- a second aspect of the bridge anomaly detection device includes a pair of vibration sensors and a pair of vibrations installed on the upper structure of a railway bridge supported by a plurality of supports corresponding to the two supports arranged in the width direction.
- a detection circuit that outputs an abnormal signal based on the difference between the output signals of the sensors and an output circuit that receives the abnormal signal and notifies the abnormality to the outside are installed in the upper structure of the railway bridge, and the driving power of the detection circuit is reduced.
- the vibration sensor is a vibration power generation element that generates power in a frequency band of abnormal vibration caused by an abnormality of a railway bridge.
- the vibration power generation element includes a first vibration system including a leaf spring integrated with the piezoelectric element, and a first mass member attached to the leaf spring, And a second mass member including the first mass system and an elastic member provided between the second mass member and the upper structure, and the first mass
- the resonance frequency of the system and the resonance frequency of the second vibration system may be included in the frequency band of abnormal vibration.
- the detection circuit stores the difference between the output signals with time, and outputs an abnormality signal when the change with time in the difference between the output signals exceeds a preset change rate. It is good also as a structure to output.
- the detection circuit and the output circuit may be wirelessly connected.
- the output circuit may be disposed at a position photographed by a camera mounted on a traveling train and may have a light emitting device that emits light based on an abnormality signal. Good.
- the output circuit may have a wireless communication circuit.
- a bridge anomaly monitoring system includes a bridge anomaly detection device that detects an anomaly occurring in a railway bridge, and a monitoring device that is mounted on a train traveling on the railway bridge and that monitors the bridge anomaly detection device. Is based on the difference between the output signals of a pair of vibration sensors and a pair of vibration sensors installed in the superstructure of a railway bridge supported by a plurality of supports corresponding to the pair of supports arranged in the width direction.
- a detection circuit that outputs an abnormal signal and an output circuit that receives the abnormal signal and notifies the abnormality to the outside, and the vibration sensor is a vibration power generation element that generates power in a frequency band of abnormal vibration caused by an abnormality in the railway bridge. Yes, the driving power of the detection circuit is supplied from the vibration power generation element.
- the output circuit can cause the light emitting element to emit light in the event of an abnormality
- the monitoring apparatus can be a camera that is mounted on a train and checks whether the light emitting element emits light.
- the difference between the outputs of a pair of vibration sensors installed corresponding to a pair of bearings arranged in the width direction on an upper structure of a railway bridge supported by a plurality of bearings is calculated.
- the abnormality is determined according to the difference value.
- the second aspect of the bridge anomaly detection method is the difference between the outputs of a pair of vibration sensors installed in the upper structure of a railway bridge supported by a plurality of supports corresponding to the pair of supports arranged in the width direction. A change with time is obtained, and an abnormality is determined according to the value of the change with time.
- abnormal vibration generated in the bridge can be detected without providing a battery or a power supply wiring.
- FIG. 1 is a diagram illustrating an installation example of a bridge abnormality detection device according to an embodiment.
- FIG. 2A is a graph showing the frequency distribution of vibrations that occur near normal bearings.
- FIG. 2B is a graph showing a frequency distribution of vibrations generated near a bearing with a gap.
- FIG. 2C is a difference obtained by subtracting the spectrum of FIG. 2A from the spectrum of FIG. 2B.
- FIG. 3 is a diagram illustrating an example of a vibration sensor used in the bridge abnormality detection apparatus.
- FIG. 4 is a diagram illustrating an example of a vibration sensor used in the bridge abnormality detection apparatus.
- FIG. 5A is a graph showing an output example of a vibration sensor arranged near a normal bearing.
- FIG. 5B is a graph showing an output example of a vibration sensor arranged in the vicinity of a bearing with a gap.
- FIG. 5C is a difference obtained by subtracting the spectrum of FIG. 5A from the spectrum of FIG. 5B.
- FIG. 6 is a block diagram illustrating an example of a detection circuit.
- FIG. 7 is a diagram illustrating an example of a bridge abnormality monitoring system.
- FIG. 8 is a block diagram showing a modification of the bridge abnormality detection device.
- the bridge abnormality detection apparatus includes a pair of vibration sensors 151 (151A and 151B) installed in the upper structure 110 of the railway bridge, outputs of the vibration sensors 151A, and outputs of the vibration sensors 151B. And a detection circuit 181 that issues an abnormality according to the difference between the input values.
- the superstructure 110 is supported by a support 121 disposed on the abutment 120.
- the vibration sensors 151A and 151B are arranged corresponding to the two supports 121 (121A and 121B) arranged in the width direction, respectively. That is, the vibration sensor 151A is disposed at a position where the influence of the abnormal vibration caused by the abnormality of the support 121A is received more strongly than the vibration sensor 151B.
- the vibration sensor 151B receives the influence of the abnormal vibration caused by the abnormality of the support 121B from the vibration sensor 151A. Is also placed in a position to receive strongly.
- the vibration sensor 151A is disposed closer to the support 121A than the vibration sensor 151B, and the vibration sensor 151B is disposed closer to the support 121B than the vibration sensor 151A.
- the vibration sensor 151A and the vibration sensor 151B are arranged symmetrically with respect to the symmetry axis of the support 121A and the support 121B. In this way, when the load is applied almost evenly to the support 121A and the support 121B and no abnormal vibration occurs, the vibration sensor 151A and the vibration sensor 151B can output substantially the same value.
- the vibration sensor 151A and the vibration sensor 151B may not be arranged symmetrically with respect to the symmetry axis of the support 121A and the support 121B. Moreover, when determining the arrangement positions of the vibration sensor 151A and the vibration sensor 151B, the influence of the structure of the entire railway pier can be considered.
- the vibration sensor 151 is a vibration power generation element that generates power in a frequency band of abnormal vibration caused by a railway bridge abnormality.
- the abnormal vibration caused by the abnormality of the railway bridge here is vibration caused by the balance of the load applied to each support 121 from the upper structure 110 due to ground subsidence or the like, and rattling.
- the frequency band of abnormal vibration varies depending on the structure of the pier, the weight and speed of the traveling train, etc., but is usually 200 Hz or less, often 150 Hz or less, and more typically 120 Hz or less.
- FIG. 2A to FIG. 2C show the results of measuring the vibration when the train passes through the bridge. 2A shows the vibration near the normal bearing, FIG. 2B shows the vibration near the bearing with a gap, and FIG. 2C shows the difference obtained by subtracting the spectrum shown in FIG. 2A from the spectrum shown in FIG. 2B.
- the speed of the train was about 70 km, and the vibration acceleration was measured by an acceleration sensor. For vibrations of 200 Hz or higher, which are normally generated by passing trains, there is no clear difference between the vibration acceleration near the bearing with a gap shown in FIG.
- the vibration sensor 151 may have a structure as shown in FIG. Specifically, vibration power generation having a cantilever structure including a plate spring 162 having one end fixed to a fixing member 165 and a mass member 163 fixed to the other end, and a piezoelectric element 164 fixed to the plate spring 162. It can be set as an element. The mass and the like of the mass member 163 are adjusted so that the resonance frequency of the vibration system 161 having the mass member 163 and the leaf spring 162 is in the frequency band of abnormal vibration.
- the piezoelectric element 164 provided on the leaf spring 162 is deformed according to the vibration of the upper structure 110, and a voltage corresponding to the magnitude of the deformation of the piezoelectric element 164 is generated.
- the piezoelectric element 164 can include, for example, a piezoelectric layer 168 and an upper electrode 167 and a lower electrode 169 provided on both surfaces of the piezoelectric layer 168, respectively.
- a voltage generated in the piezoelectric layer 168 can be taken out.
- a load 180 is connected via a wiring 167 ⁇ / b> A connected to the upper electrode 167 and a wiring 169 ⁇ / b> A connected to the lower electrode 169.
- the load 180 includes a resistor, a capacitor, a rectifier circuit, and the like.
- the piezoelectric layer 168 can be a film made of, for example, a ceramic material or a single crystal material.
- the piezoelectric layer 168 can be a film provided with compressive stress. As a result, the piezoelectric layer 168 can be greatly deformed.
- 3 shows an example in which the piezoelectric element 164 is provided on both surfaces of the leaf spring 162, but it may be provided only on one surface of the leaf spring 162.
- 3 shows an example in which the fixing member 165 is directly connected to the upper structure 110 of the bridge. However, if vibration can be transmitted from the upper structure 110 to the fixing member 165, the upper structure 110 and the fixing member 165 can be connected to each other. Other members may be interposed therebetween. In addition, a case or the like surrounding the vibration power generation element can be provided.
- the vibration sensor 151 may be a vibration power generation element in which the fixing member 165 is fixed to the upper structure 110 via the mass member 172 and the elastic member 173.
- the mass member 172 is a case for housing the vibration system 161.
- the elastic member 173 may be formed of an elastic body such as rubber. If the vibration direction of the vibration system 171 including the mass member 172 and the elastic member 173 matches the vibration direction of the vibration system 161, other configurations can be employed.
- the direction of vibration means that the direction of the main vibration is the same, and the phase of vibration is not ask
- the main direction of vibration is the direction in which the displacement is greatest.
- the direction coincides means that the direction deviation is within ⁇ 30 °, preferably ⁇ 20 °, more preferably within ⁇ 10 °.
- the vibration sensor 151 it is possible to generate power corresponding to vibrations in a wide frequency range by using the vibration sensor 151 as a vibration power generation element that combines two vibration systems, and the generated power can be increased.
- the resonance frequency of the vibration system 161 is 44.8 Hz and the resonance frequency of the vibration system 171 is 45 Hz
- the generated power of 100 ⁇ W or more (generated power for vibration acceleration of 0.1 G) can be obtained in a frequency range of about 30 Hz to 60 Hz. can get.
- the difference between the resonance frequency of the vibration system 161 and the resonance frequency of the vibration system 171 is preferably ⁇ 15% or less of the resonance frequency of the vibration system 171 and more preferably ⁇ 10% or less.
- ⁇ 5% or less is more preferable.
- FIG. 5A to 5C show the relationship between the vibration frequency distribution of the vibration sensor 151 capable of obtaining large generated power in the frequency range of about 30 Hz to 60 Hz and the generated voltage.
- FIG. 5A shows a case where it is arranged near a normal bearing
- FIG. 5B shows a case where it is arranged near a bearing where a gap is formed
- FIG. 5C shows a difference obtained by subtracting the spectrum of FIG. 5A from the spectrum of FIG. It is.
- the vibration sensor 151 arranged in the vicinity of the support with a gap has a higher power generation voltage between 30 Hz and 60 Hz than the vibration sensor 151 arranged in a normal support.
- the generated voltage was obtained by connecting a 100 k ⁇ resistor as a load of the vibration sensor 151 and measuring the voltage at both ends.
- the detection circuit 181 obtains, for example, a difference between the output of the vibration sensor 151A and the output of the vibration sensor 151B and compares it with a threshold value, and the charging circuit 183 that charges the output of the vibration sensor 151A and the output of the vibration sensor 151B. It can be set as the structure which has.
- the charging circuit 183 includes, for example, a first capacitor element 185 and a second capacitor element 186 as shown in FIG.
- the first capacitor 185 has a larger capacity than the second capacitor 186 and stores power for driving the arithmetic circuit 182.
- the second capacitor 186 generates a signal to be input to the arithmetic circuit 182.
- the capacitance of the second capacitor 186 can be approximately 1/1000 of that of the first capacitor 185. With such a configuration, a low power consumption microcomputer or the like can be driven.
- the output of the first capacitor element 185 may be converted into a driving voltage for the arithmetic circuit 182 by the DC-DC converter 187 and used.
- the output of the second capacitor 186 can be input to the arithmetic circuit 182 via the analog-digital converter 188.
- the arithmetic circuit 182 receives an output from the vibration sensor 151A and an output from the vibration sensor 151B, and obtains a difference between the two inputs. Further, when the input difference exceeds a preset threshold, an abnormal signal is output.
- the threshold value may be determined individually by performing preliminary measurement for each target bridge. It is also possible to set threshold values in multiple stages, judge abnormalities in multiple stages, and output abnormal signals having different levels. 6 shows only one vibration sensor 151, the output of the other vibration sensor 151 is also input to the arithmetic circuit 182 through the same configuration.
- the abnormal signal output by the detection circuit 181 is converted by the output circuit 191 into an output that can be recognized from the outside of the bridge detection device.
- the output circuit 191 can be configured to include a light emitting device such as a light emitting diode disposed beside the rail, for example.
- a monitoring device 201 such as a camera mounted on the train can be installed, and a system for confirming whether or not the light emitting device is turned on when the train passes can be constructed.
- the abnormality can be detected by running the train if the lighting is continued until at least the next train passes.
- the captured image of the camera may be analyzed in real time, or may be recorded after being recorded. Moreover, you may change arbitrarily the lighting time of a light-emitting device with the operation
- the position information may also be reflected in the camera or linked to the global positioning system (GPS) so that the position of the lit bridge abnormality detection device can be easily identified.
- GPS global positioning system
- the light-emitting device can also be arranged at a position where it can be easily visually recognized, not on the side of the rail. For example, in the case of an overpass or the like, the occurrence of an abnormality can be reported by installing a rotating lamp or the like under the abutment or the pier.
- the output circuit 191 may be a wireless transmission circuit and the monitoring device 201 may be a receiver mounted on a train.
- the transmission output of the output circuit 191 may be small because it is only necessary to receive a signal in the passing train.
- the output circuit 191 may be configured to transmit not only the abnormality signal but also the ID number of the bridge abnormality detection device at the same time. Further, when sufficient power can be obtained and a high-power transmitter can be used, a system that directly transmits an abnormality to a monitoring center or the like can be provided. Moreover, it can also be set as the system which provides the relay station etc. which relay transmission from the surrounding bridge
- the output of the output circuit 191 may be changed accordingly. For example, it is possible to change the color of the light emitting device to be turned on according to the level of the abnormal signal, or to blink the light emitting device at a different cycle.
- the output circuit 191 can be driven by a power source different from that of the detection circuit 181.
- a circuit with high power consumption can be used by driving the output circuit 191 with a separate power source. Since the output circuit 191 can be disposed at a place away from the vibration sensor 151 and easy to perform maintenance and inspection, it may be battery-driven. Moreover, it can also arrange
- the output circuit 191 and the detection circuit 181 may be wired or wirelessly connected.
- the detection circuit 181 may store the difference between the two input signals over time, and output an abnormal signal when the change in the input signal difference over time exceeds a threshold value. Also, an abnormal signal having a different level may be output when the difference between the two input signals exceeds a threshold value and when the change with time exceeds the threshold value. Even when the determination is made based on the change over time, the threshold can be set in multiple stages, and the abnormality can be determined in multiple stages.
- the detection circuit 181 may output a difference value between two input signals, and the output circuit 191 may store the difference between the input signals with time.
- a power supply vibration power generation element 211 that obtains power for driving the detection circuit 181 may be provided separately from the vibration sensor 151.
- the vibration power generating element 211 for power supply can have the same configuration as the vibration sensor 151.
- it may be configured to generate power by vibration in a normal vibration region of the bridge. Even if a load is applied to the bearing 121 in a balanced manner, the railway bridge vibrates due to the passage of the train. Such vibration mainly occurs in the region of about 400 Hz to 800 Hz.
- the power generation frequency range of the vibration power generating element 211 for power supply is set to such a frequency range, power can be stably supplied.
- the power of the output circuit 191 can be supplied from the vibration power generating element 211 for power supply.
- the vibration sensors 151 may be arranged on all the supports 121, or the vibration sensors 151 may be arranged on some of the supports 121.
- a pier abnormality detection device may be provided for all sets of the supports 121 as monitoring targets. You may provide an pier abnormality detection apparatus in the group of a support.
- the bridge abnormality detection device of the present disclosure can detect abnormal vibration generated in the bridge without providing a battery or power supply wiring, and is useful as a detection device for detecting an abnormality in a railway bridge.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
Description
120 橋台
121 支承
121A 支承
121B 支承
151 振動センサ
151A 振動センサ
151B 振動センサ
161 振動系
162 板バネ
163 質量部材
164 圧電素子
165 固定部材
167 上部電極
167A 配線
168 圧電体層
169 下部電極
169A 配線
171 振動系
172 質量部材
173 弾性部材
180 負荷
181 検出回路
182 演算回路
183 充電回路
185 第1の容量素子
186 第2の容量素子
187 DC-DC変換器
188 アナログ-デジタル変換器
191 出力回路
201 監視装置
211 電力供給用振動発電素子
Claims (12)
- 複数の支承によって支えられた鉄道橋梁の上部構造に、幅方向に配置された一対の支承に対応して設置された一対の振動センサと、
一対の前記振動センサの出力信号の差に基づいて異常信号を出力する検出回路と、
前記異常信号を受け、外部に異常を通知する出力回路と、を備え、
前記振動センサは、前記鉄道橋梁の異常によって生じる異常振動の周波数帯域において発電する振動発電素子であり、
前記検出回路の駆動電力は、前記振動発電素子から供給される、橋梁異常検知装置。 - 前記検出回路は、振動センサの出力により充電される第1の容量素子及び第2の容量素子と、前記出力信号の差を求める演算回路とを有し、
前記第1の容量素子は、前記演算回路を駆動する電力を蓄積し、
前記第2の容量素子は、前記演算回路に入力する信号を生成する、請求項1に記載の橋梁異常検知装置。 - 複数の支承によって支えられた鉄道橋梁の上部構造に、幅方向に配置された2つの支承に対応して設置された一対の振動センサと、
一対の前記振動センサの出力信号の差に基づいて異常信号を出力する検出回路と、
前記異常信号を受け、外部に異常を通知する出力回路と、
前記鉄道橋梁の上部構造に設置され、前記検出回路の駆動電力を供給する、電力供給用振動発電素子と、を備え、
前記振動センサは、前記鉄道橋梁の異常によって生じる異常振動の周波数帯域において発電する振動発電素子である、橋梁異常検知装置。 - 前記振動発電素子は、圧電素子と一体となった板バネと、前記板バネに取り付けられた第1の質量部材とを含む第1の振動系、及び前記第1の振動系が取り付けられた第2の質量部材と、前記第2の質量部材と前記上部構造との間に設けられた弾性部材とを含む第2の振動系を有し、
前記第1の振動系の共振周波数及び前記第2の振動系の共振周波数は、前記異常振動の周波数帯域に含まれる、請求項1~3のいずれか1項に記載の橋梁異常検知装置。 - 前記検出回路は、前記出力信号の差を経時的に記憶し、前記出力信号の差の経時変化があらかじめ設定した変化率を超えた場合に異常信号を出力する、請求項1~4のいずれか1項に記載の橋梁異常検知装置。
- 前記検出回路と、前記出力回路とは、無線接続されている、請求項1~5のいずれか1項に記載の橋梁異常検知装置。
- 前記出力回路は、走行する列車に搭載されたカメラにより撮影される位置に配置され、前記異常信号に基づいて発光する発光装置を有している、請求項1~6のいずれか1項に記載の橋梁異常検知装置。
- 前記出力回路は、無線通信回路を有している、請求項1~6のいずれか1項に記載の橋梁異常検知装置。
- 鉄道橋梁に発生した異常を検知する橋梁異常検知装置と、
前記鉄道橋梁を走行する列車に搭載され前記橋梁異常検知装置を監視する監視装置と、を備え、
前記橋梁異常検知装置は、複数の支承によって支えられた鉄道橋梁の上部構造に、幅方向に配置された一対の支承にそれぞれ対応して設置された一対の振動センサと、一対の前記振動センサの出力信号の差に基づいて異常信号を出力する検出回路と、前記異常信号を受け、外部に異常を通知する出力回路とを有し、
前記振動センサは、前記鉄道橋梁の異常によって生じる異常振動の周波数帯域において発電する振動発電素子であり、
前記検出回路の駆動電力は、前記振動発電素子から供給される、橋梁異常監視システム。 - 前記出力回路は、異常時に発光装置を発光させ、
前記監視装置は、前記列車に搭載され、前記発光装置の発光の有無を確認するカメラである請求項9に記載の橋梁異常監視システム。 - 複数の支承によって支えられた鉄道橋梁の上部構造に、幅方向に配置された一対の支承に対応して設置された一対の振動センサの出力の差分を求め、前記差分の値に応じて異常を判断する、橋梁異常検知方法。
- 複数の支承によって支えられた鉄道橋梁の上部構造に、幅方向に配置された一対の支承に対応して設置された一対の振動センサの出力の差分の経時変化を求め、前記経時変化の値に応じて異常を判断する、橋梁異常検知方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP16802815.7A EP3306286A4 (en) | 2015-06-02 | 2016-06-01 | Bridge abnormality sensing device |
US15/577,232 US20180306668A1 (en) | 2015-06-02 | 2016-06-01 | Bridge abnormality sensing device |
JP2017521696A JPWO2016194375A1 (ja) | 2015-06-02 | 2016-06-01 | 橋梁異常検知装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015112359 | 2015-06-02 | ||
JP2015-112359 | 2015-06-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016194375A1 true WO2016194375A1 (ja) | 2016-12-08 |
Family
ID=57440938
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2016/002660 WO2016194375A1 (ja) | 2015-06-02 | 2016-06-01 | 橋梁異常検知装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20180306668A1 (ja) |
EP (1) | EP3306286A4 (ja) |
JP (1) | JPWO2016194375A1 (ja) |
WO (1) | WO2016194375A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108613873A (zh) * | 2018-04-04 | 2018-10-02 | 暨南大学 | 一种基于双传感器信息的联合相空间的梁桥结构损伤定位方法 |
JP2019007861A (ja) * | 2017-06-26 | 2019-01-17 | 学校法人五島育英会 | 検出システム及び検出方法 |
KR102231343B1 (ko) | 2020-04-24 | 2021-03-24 | (주)아이지오 | 교량 시설물 보호를 위한 해상경보시스템 |
JP2021139717A (ja) * | 2020-03-04 | 2021-09-16 | 国立大学法人京都大学 | 構造物の診断システムおよび診断方法 |
JP2021156592A (ja) * | 2020-03-25 | 2021-10-07 | 三菱パワー株式会社 | 回転機の診断監視装置及び方法 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114001817B (zh) * | 2021-09-29 | 2022-08-19 | 东南大学 | 面向桥梁振动监测的加速度传感器固定装置及其方法 |
CN115329812B (zh) * | 2022-08-10 | 2023-07-21 | 贵州桥梁建设集团有限责任公司 | 一种基于人工智能的桥梁基础设施异常监测方法 |
CN116045783B (zh) * | 2023-04-03 | 2023-06-13 | 长安大学 | 一种桥梁墩柱沉降变形监测设备 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003099885A (ja) * | 2001-09-25 | 2003-04-04 | Tsumura Sogo Kenkyusho:Kk | 情報受信装置 |
JP2013040963A (ja) * | 2008-01-17 | 2013-02-28 | Railway Technical Research Institute | 高精度加速度測定装置 |
WO2013105298A1 (ja) * | 2012-01-10 | 2013-07-18 | オムロン株式会社 | 振動センサ、外部環境検出装置 |
JP2014173313A (ja) * | 2013-03-08 | 2014-09-22 | Railway Technical Research Institute | 鉄道橋梁の支承部の非接触測定方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4790191A (en) * | 1987-01-12 | 1988-12-13 | Shultz Jr William L | Comparative mechanical fault detection apparatus and clamp |
JPH07128182A (ja) * | 1993-10-29 | 1995-05-19 | Omron Corp | 橋梁特性検査機器 |
JP2004085273A (ja) * | 2002-08-23 | 2004-03-18 | Kinki Nippon Railway Co Ltd | 車輪損傷の検出方法及びその装置 |
JP5384166B2 (ja) * | 2009-03-30 | 2014-01-08 | 株式会社構造計画研究所 | 構造体変状検知システム |
US8618934B2 (en) * | 2009-04-27 | 2013-12-31 | Kolos International LLC | Autonomous sensing module, a system and a method of long-term condition monitoring of structures |
JP6128130B2 (ja) * | 2012-09-27 | 2017-05-17 | 日本電気株式会社 | 振動センサユニット |
-
2016
- 2016-06-01 WO PCT/JP2016/002660 patent/WO2016194375A1/ja active Application Filing
- 2016-06-01 JP JP2017521696A patent/JPWO2016194375A1/ja active Pending
- 2016-06-01 EP EP16802815.7A patent/EP3306286A4/en not_active Withdrawn
- 2016-06-01 US US15/577,232 patent/US20180306668A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003099885A (ja) * | 2001-09-25 | 2003-04-04 | Tsumura Sogo Kenkyusho:Kk | 情報受信装置 |
JP2013040963A (ja) * | 2008-01-17 | 2013-02-28 | Railway Technical Research Institute | 高精度加速度測定装置 |
WO2013105298A1 (ja) * | 2012-01-10 | 2013-07-18 | オムロン株式会社 | 振動センサ、外部環境検出装置 |
JP2014173313A (ja) * | 2013-03-08 | 2014-09-22 | Railway Technical Research Institute | 鉄道橋梁の支承部の非接触測定方法 |
Non-Patent Citations (3)
Title |
---|
DAISUKE IZUMI ET AL.: "Tetsudo Kokyo no Shitenbu ni Okeru Ijo Kenchi Shihyo no Kento", JAPAN SOCIETY OF CIVIL ENGINEERS ZENKOKU TAIKAI, DAI 69 KAI, 1 August 2014 (2014-08-01), pages 929 - 930, XP009502634 * |
See also references of EP3306286A4 * |
YOSHINORI YOSHIDA ET AL.: "DEVELOPMENT OF THE MONITORING SYSTEM THAT OPERATES WITH THE POWER GENERATED FROM THE BRIGDE VIBRATION", PROCEEDINGS OF THE JAPAN SOCIETY OF CIVIL ENGINEERS A1 (KOZO, JISHIN KOGAKU, vol. 70, no. 2, 20 June 2014 (2014-06-20), pages 282 - 294, XP003034335 * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019007861A (ja) * | 2017-06-26 | 2019-01-17 | 学校法人五島育英会 | 検出システム及び検出方法 |
CN108613873A (zh) * | 2018-04-04 | 2018-10-02 | 暨南大学 | 一种基于双传感器信息的联合相空间的梁桥结构损伤定位方法 |
JP2021139717A (ja) * | 2020-03-04 | 2021-09-16 | 国立大学法人京都大学 | 構造物の診断システムおよび診断方法 |
JP7253205B2 (ja) | 2020-03-04 | 2023-04-06 | 国立大学法人京都大学 | 構造物の診断システムおよび診断方法 |
JP2021156592A (ja) * | 2020-03-25 | 2021-10-07 | 三菱パワー株式会社 | 回転機の診断監視装置及び方法 |
JP7379241B2 (ja) | 2020-03-25 | 2023-11-14 | 三菱重工業株式会社 | 回転機の診断監視装置及び方法 |
KR102231343B1 (ko) | 2020-04-24 | 2021-03-24 | (주)아이지오 | 교량 시설물 보호를 위한 해상경보시스템 |
Also Published As
Publication number | Publication date |
---|---|
US20180306668A1 (en) | 2018-10-25 |
JPWO2016194375A1 (ja) | 2018-03-22 |
EP3306286A1 (en) | 2018-04-11 |
EP3306286A4 (en) | 2018-08-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2016194375A1 (ja) | 橋梁異常検知装置 | |
JP7384807B2 (ja) | コンベヤシステムを監視するための装置及び方法 | |
US10046779B2 (en) | Energy harvester and wireless sensor device having energy harvester | |
US20120318056A1 (en) | Vibration detection apparatus, air pressure detection terminal, and acceleration detection system | |
CN105899927A (zh) | 振动机 | |
US20140343797A1 (en) | Tire sensing system | |
JP5264842B2 (ja) | タイヤセンサ及びタイヤ状態監視装置 | |
JP6414672B2 (ja) | 構造物や設備の状態監視・診断に用いる自己診断機能付き診断装置システムおよび自己診断方法。 | |
US9638588B2 (en) | Multifunctional load and damage sensor | |
CN108332789A (zh) | 一种火车受电弓的结构健康监测系统 | |
WO2012131683A2 (en) | Railway information gathering- system and method | |
JP5681512B2 (ja) | レール破断検知装置 | |
EP2237004A1 (en) | Wireless unit for measuring and transmitting dynamic loads, waggon comprising said unit, and corresponding control method | |
Brignole et al. | Resonant electromagnetic vibration harvesters feeding sensor nodes for real-time diagnostics and monitoring in railway vehicles for goods transportation: A numerical-experimental analysis | |
JP2004301571A (ja) | 構造物の監視装置とその監視システム | |
JP5396294B2 (ja) | 軌道の動的変位推定方法及び動的変位推定システム | |
JP2009236596A (ja) | 振動センサ及び振動センサの状態判別方法 | |
JPH09264778A (ja) | 自発電源による振動検出装置 | |
US10386264B2 (en) | Self-powered multi-functional structural health monitoring sensor | |
JP6481297B2 (ja) | モニタリング装置、モニタリングシステム、およびモニタリング方法 | |
KR102140580B1 (ko) | 송전 철탑 진단 시스템 및 방법 | |
KR20210032597A (ko) | 복수개의 압전 에너지 하베스터를 이용한 자가 발전형 고장 예지 방법 및 컴퓨터 판독 가능 기록 매체 | |
JPH10132947A (ja) | 地震情報システム | |
JP2004354151A (ja) | 変位計測システム | |
JP7056097B2 (ja) | 診断装置及び方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 16802815 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2017521696 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15577232 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2016802815 Country of ref document: EP |