CN102092405A - Method and system device for measuring rail curve parameters - Google Patents
Method and system device for measuring rail curve parameters Download PDFInfo
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Abstract
The invention provides a method and device for measuring rail curve parameters. In the method, two measurement carts are placed on a measured rail line, wherein one measurement cart is a fixed measurement cart, while the other measurement cart is a movable measurement cart; a digital camera is arranged on the fixed measurement cart, and an optical target is arranged on the movable measurement cart; the movable measurement cart and the fixed measurement cart form a rail curve parameter photographing and measuring system; the absolute parameter coordinates of a rail curve parameter are measured and analyzed by virtue of the movement of the digital camera of the movable measurement cart and optical imaging with the optical target of the fixed measurement cart, so that the process of measuring the rail curve parameters is completed. In the method, an absolute coordinate measurement system is adopted, actual geodetic absolute coordinates of each point of the rail or a marker on the rail for controlling the line style is calculated, so the actual geodetic absolute coordinates are reset to the position of the theoretical geodetic absolute coordinates during construction, and the problems of line style deflection, rotation and the like in a relative coordinate construction method can be effectively solved.
Description
Technical field
The present invention relates to a kind of method of measurement and system and device of performance perameter of track, is a kind of track curve parameter measuring method and system device specifically.
Background technology
The influence of the application force that produces when being subjected to the locomotive operation of its carrying, the static curve shape of railroad track changes in time and constantly departs from its design value, when this deviation value reaches certain limit, will impact driving, even safety worked the mischief, in order in a large scale, to measure this out-of-position value.Several orbit measurement devices have appearred, but how to be designated as the basis with laser and a tracking target, the method of measurement of being developed with Prasy * Tao Yier company typical case the most wherein, this scheme comprises a measurement car that can travel along rail, a measurement car that is set up in attachment point, a laser beam emitting device, and the moving target mark that can follow the tracks of laser is formed, when measuring car along the rail traveling, target moves the skew of measuring relative fixed point, calculates the rail parameter.The deficiency that it exists is: in these devices, laser beam is fixed, and what move is the laser pick-off target, the laser target must be assemblied in one by on the motor-driven mechanical framework, so that the increase receiver area before the work beginning, needs the alignment procedures of a target and laser.Because the receiver area of target is less, laser is easy to generate the phenomenon of missing the target, and needs artificial the intervention to pay close attention to target and follow the tracks of situation, as misses the target and then need manual-alignment once more.Therefore still be necessary this is further improved.
Summary of the invention
The objective of the invention is at existing track curve parameter measuring method and install existing deficiency, be difficult for missing the target when a kind of measurement is provided, do not need artificial the intervention to pay close attention to track curve parameter measuring method and the device that target is followed the tracks of situation.
Technical scheme of the present invention is: a kind of track curve parameter measuring method, on tested track circuit, place two measurement dollies, wherein one is the fixation measuring dolly, one is the traverse measurement dolly, on the fixation measuring dolly, digital camera is housed, on the traverse measurement dolly, optical target is housed, form an orbital curve parameter photographic measurement system by traverse measurement dolly and fixation measuring dolly, digital camera by the traverse measurement dolly move with moving process in the optical target optical imagery of fixation measuring dolly orbital curve parameter absolute reference coordinate is carried out Measurement and analysis, finish the track curve parameter measuring process.In a measurement process,, the traverse measurement car is placed in the other end of test line at first with fixation measuring cart stationary one at test line; Again the high-resolution digital camera on the fixation measuring dolly is aimed at the optical target that is installed on the traverse measurement dolly, take the initial position value O ' that optical target draws a target, again by routine calculate obtain left and right sides track to the optical target center O ' level and vertical distance value, again with the level of this left and right sides track and vertical distance value and optical target center O ' spatial coordinates superimposed, can draw spatial coordinates at this measurement point track; Start the traverse measurement dolly again, the traverse measurement dolly travels with certain speed to the fixation measuring dolly along rail, camera in this process on the fixation measuring dolly is constantly noted down the relative coordinate of target, and send these data to the traverse measurement dolly, orbit parameter computing machine on the traverse measurement dolly receives this data, according to aforementioned principles, the orbital data that each measurement point is recorded combines with the distance value that the range finding wheel records, thereby goes into complete orbit space parametric curves.
According to the method for measurement of the track curve parameter measuring device that said method proposed, it may further comprise the steps:
The first step is loaded into two measurement dollies on the delivery platform of high speed carrier loader, is transported to the rail section of desiring construction operation at a high speed;
Second step, arrive the designated area after, load/put and unload mechanical device and unload and be placed in rail on from the high speed carrier loader traverse measurement dolly and two measurement dollies of fixation measuring dolly;
In the 3rd step, measure dolly and travel respectively to the two ends of track section to be measured; The fixation measuring dolly, make it and to move along rail, open wireless digital broadcasting station, between traverse measurement dolly and fixation measuring dolly, set up the transmission and the receiving cable of data, high-resolution digital camera on the fixation measuring dolly is aimed at the optical target that is installed on the traverse measurement dolly, and the position of taking and calculating target this moment is as initial value and record;
The 4th step, the traverse measurement dolly is along track fixation measuring dolly low speed driving, high-resolution digital camera on the fixation measuring dolly continues to take the optical target on the traverse measurement dolly, method by image calculates in the successive image optical target with respect to the skew of initial position, and send this value among the traverse measurement dolly orbit parameter computing machine by wireless digital broadcasting station, simultaneously, the orbit parameter computing machine is continuous collecting distance measuring sensor output valve in the process of moving, is used for determining that how much mid points of dolly measurement and rail rail are along distance; Gather the obliquity sensor output valve, two rail diff-Hs about being used for determining; Gather the rotary encoder output valve, be used for the shift value that definite traverse measurement dolly moves along rail, on this basis, the digital image processing system output valve that the combining wireless data radio station is transmitted, the orbit parameter computing machine just can calculate the curve state data value of track reality;
In the 5th step, the orbit parameter COMPUTER CALCULATION goes out the theoretical situation data of track, and itself and real data are compared, and generates discrepancy report and output;
The 6th step finished when measuring the dolly operation, and the high speed carrier loader will be measured dolly again and be loaded on the delivery platform and by latching device and lock the operation field of departing.
According to device for carrying out said that said method proposes be: a kind of track curve parameter measuring system and device, measuring system is a cover track absolute reference coordinate measuring system, comprise traverse measurement dolly and fixation measuring dolly, on the fixation measuring dolly, digital camera is housed, on the traverse measurement car, optical target is housed, forms an orbital curve parameter photographic measurement system by traverse measurement dolly and fixation measuring dolly; In addition, also can be equipped with on traverse measurement dolly or the fixation measuring dolly be used for determine measuring how much mid points and rail rail along the distance measuring sensor of distance, be used to measure about the obliquity sensor of two rail diff-Hs, measure the rotary encoder of the move distance of dolly, a cover shows orbit theory parameter and actual parameter and calculates the orbit parameter computing machine of both differences; At the traverse measurement dolly power-driven system that move back and forth of control dolly along rail is housed simultaneously; Carry out the signal transmission apparatus that data transmit and receive at traverse measurement dolly and fixation measuring dolly, communicate by wired or wireless between traverse measurement dolly and the fixation measuring dolly.
Described traverse measurement dolly and fixation measuring dolly can be mounted on the high speed carrier loader, unload mechanical device traverse measurement dolly and fixation measuring dolly are put down or pack up when arriving assigned address by loading/putting, being provided with one at the high speed carrier loader settles and the fixing delivery platform of traverse measurement dolly and fixation measuring dolly, the delivery platform is provided with latching device, the latching device of when being implemented in the carrier loader high-speed cruising dolly being fixed.
The invention has the advantages that: the present invention adopts the absolute coordinates measuring system, construction method based on absolute coordinates has increased by a cover geodetic coordinate controlling point on the construction method based on relative coordinate, by these controlling points, the actual the earth absolute coordinates that is used to control the gauge point of line style on the every bit of rail or the rail can be calculated, thereby in construction, it is returned back to theoretical the earth absolute coordinates place, effectively solve problems such as line style skew, rotation in the relative coordinate construction method.
Description of drawings:
Fig. 1 is the principle of the invention and forms scheme drawing;
Fig. 2 is a principle of work scheme drawing of the present invention;
Fig. 3 is the scheme of installation of the present invention at the high speed carrier loader.
The specific embodiment:
The present invention will be further described below in conjunction with accompanying drawing.
Fig. 1, Fig. 2 has provided functional block diagram of the present invention, the present invention relates to as can be seen by accompanying drawing, a kind of track curve parameter measuring method, on tested track circuit, place two measurement dollies, wherein one is the fixation measuring dolly, one is the traverse measurement dolly, on the fixation measuring dolly, digital camera is housed, on the traverse measurement dolly, optical target is housed, form an orbital curve parameter photographic measurement system by traverse measurement dolly and fixation measuring dolly, digital camera by the traverse measurement dolly move with moving process in the optical target optical imagery of fixation measuring dolly orbital curve parameter absolute reference coordinate is carried out Measurement and analysis, finish the track curve parameter measuring process.In a track curve parameter measuring process,, the traverse measurement car is placed in the other end of test line at first with fixation measuring cart stationary one at test line; Again the high-resolution digital camera on the fixation measuring dolly is aimed at the optical target that is installed on the traverse measurement dolly, take the initial position value O ' that optical target draws a target, again by routine calculate obtain left and right sides track to the optical target center O ' level and vertical distance value, again with the level of this left and right sides track and vertical distance value and optical target center O ' spatial coordinates superimposed, can draw spatial coordinates at this measurement point track; Start the traverse measurement dolly again, the traverse measurement dolly travels with certain speed to the fixation measuring dolly along rail, camera in this process on the fixation measuring dolly is constantly noted down the relative coordinate of target, and send these data to the traverse measurement dolly, orbit parameter computing machine on the traverse measurement dolly receives this data, according to aforementioned principles, the orbital data that each measurement point is recorded combines with the distance value that the range finding wheel records, thereby goes into complete orbit space parametric curves.
According to device for carrying out said that said method proposes be: a kind of track curve parameter measuring system and device, measuring system is a cover track absolute reference coordinate measuring system, comprise traverse measurement dolly and fixation measuring dolly, on the fixation measuring dolly, digital camera is housed, on the traverse measurement car, optical target is housed, forms an orbital curve parameter photographic measurement system by traverse measurement dolly and fixation measuring dolly; In addition, also can be equipped with on traverse measurement dolly or the fixation measuring dolly be used for determine measuring how much mid points and rail rail along the distance measuring sensor of distance, be used to measure about the obliquity sensor of two rail diff-Hs, measure the rotary encoder of the move distance of dolly, a cover shows orbit theory parameter and actual parameter and calculates the orbit parameter computing machine of both differences; At the traverse measurement dolly power-driven system that move back and forth of control dolly along rail is housed simultaneously; On traverse measurement dolly and fixation measuring dolly, be provided with and carry out the signal transmission apparatus that data transmit and receive, communicate by wired or wireless between traverse measurement dolly and the fixation measuring dolly.
Described traverse measurement dolly and fixation measuring dolly can be mounted on the high speed carrier loader 3, unload mechanical device 12 traverse measurement dolly 2 and fixation measuring dolly 1 are put down or pack up when arriving assigned address by loading/putting, being provided with one at high speed carrier loader 3 settles and the fixing delivery platform 13 of traverse measurement dolly 2 and fixation measuring dolly 1, delivery platform 13 is provided with latching device 14, the latching device of when being implemented in the carrier loader high-speed cruising dolly being fixed.To realize transporting safely from one place to another.
When implementing to measure operation, high speed carrier loader 3 is transported to traverse measurement dolly 2 and fixation measuring dolly 1 job location of appointment, latching device 14 releases, load/put and unload mechanical device 12 traverse measurement dolly 2 and fixation measuring dolly 1 are transferred to (as shown in Figure 3) on the track from delivery platform 13, traverse measurement dolly 2 and fixation measuring dolly 1 enter the surveying work process, obtain the orbital curve data.After the measurement operation finishes, load/put and unload mechanical device 12 traverse measurement dolly 2 and fixation measuring dolly 1 are transferred on the delivery platform 13 from track, latching device 14 locking dollies, high speed carrier loader 3 transports out traverse measurement dolly 2 and fixation measuring dolly 1 job location of appointment.
High-resolution digital camera and corresponding digital image processing system 4 are installed on the described traverse measurement dolly 2; The optical target 5 that is used to measure is installed on the fixation measuring dolly 1, be used for how much mid points of definite measurement and rail rail distance measuring sensor 6 along distance, the obliquity sensor 7 of two rail diff-Hs about being used to measure, one cover shows orbit theory parameter and actual parameter and calculates the orbit parameter computing machine 8 of both differences, traverse measurement dolly 2 and fixation measuring dolly 1 carry out the transmission and the reception of data by a pair of wireless digital broadcasting station 9, on every measurement dolly a power-driven system 10 is arranged all simultaneously, control dolly moving back and forth along rail, a rotary encoder 11, the move distance of measurement dolly.
A kind of method of measurement based on described track curve parameter measuring device, it may further comprise the steps:
The first step is loaded into two measurement dollies on the delivery platform 13 of high speed carrier loader 3, is transported to the rail section of desiring construction operation at a high speed;
Second step, arrive the designated area after, load/put and unload mechanical device 12 and unload and be placed in rail on from high speed carrier loader 3 traverse measurement dolly 2 and 1 two measurement dollies of fixation measuring dolly;
In the 3rd step, measure dolly and travel respectively to the two ends of track section to be measured; Fixation measuring dolly 1, make it and to move along rail, open wireless digital broadcasting station 9, between traverse measurement dolly 2 and fixation measuring dolly 1, set up the transmission and the receiving cable of data, high-resolution digital camera on the fixation measuring dolly 1 is aimed at the optical target that is installed on the traverse measurement dolly 2, and the position of taking and calculating target this moment is as initial value and record;
The 4th step, traverse measurement dolly 2 is along track fixation measuring dolly 1 low speed driving, high-resolution digital camera 4 on the fixation measuring dolly 1 continues to take the optical target on the traverse measurement dolly 2, method by image calculates in the successive image optical target with respect to the skew of initial position, and send this value among the traverse measurement dolly 2 orbit parameter computing machine 8 by wireless digital broadcasting station 9, simultaneously, orbit parameter computing machine 8 is continuous collecting distance measuring sensor 6 output valves in the process of moving, are used for determining that how much mid points of dolly measurement and rail rail are along distance; Gather obliquity sensor 7 output valves, two rail diff-Hs about being used for determining; Gather rotary encoder 11 output valves, be used for the shift value that definite traverse measurement dolly 2 moves along rail, on this basis, digital image processing system 4 output valves that combining wireless data radio station 9 is transmitted, orbit parameter computing machine 8 just can calculate the curve state data value of track reality;
In the 5th step, orbit parameter computing machine 8 calculates the theoretical situation data of track, and itself and real data are compared, and generates discrepancy report and output;
The 6th step finished when measuring the dolly operation, and high speed carrier loader 3 will be measured dolly again and be loaded on the delivery platform 13 also by latching device 14 lockings, the operation field of departing.
This method of measurement institute according to principle as shown in Figure 2, optical target 5, the installation site of obliquity sensor 7 distance measuring sensors 6 is fixed, they with measure dolly about the geometric relationship of two wheels also determine, therefore, when measuring dolly when rail moves, the space curve parameter of rail has just been reflected in the locus of dolly wheel.Obliquity sensor and distance measuring sensor are installed on the wheel shaft of dolly, distance measuring sensor emission beam of laser, by calculating the angle of folded light beam, measure the relative distance h ' of self and track in real time, owing to the geometry installation dimension between two distance measuring sensors is fixed, therefore can be according to h ' in the hope of the distance H between two tracks, concern by simple geometric, utilize the inclination angle value output a of obliquity sensor sensor, the difference in level between two tracks can be calculated, and level and the vertical distance value of left and right sides track can be calculated thus to the optical target center O.
In a measurement process, at first the fixation measuring dolly 1, high-resolution digital camera on the fixation measuring dolly 1 is aimed at the optical target that is installed on the traverse measurement dolly 2, take the initial position value O ' that optical target draws a target, obtain left and right sides track to the optical target center O ' level and vertical distance value, the level of this left and right sides track and vertical distance value and optical target center O ' spatial coordinates superimposed, can draw spatial coordinates at this measurement point track, start traverse measurement dolly 2, traverse measurement dolly 2 travels with certain speed to the fixation measuring car along rail, camera in this process on the fixation measuring dolly 1 is constantly noted down the relative coordinate of target, and send these data to traverse measurement dolly 2, orbit parameter computing machine on the traverse measurement dolly 2 receives this data, according to aforementioned principles, the orbital data that each measurement point is recorded combines with the distance value that the range finding wheel records, thereby goes into complete orbit space parametric curves.
Fixation measuring dolly 1 and traverse measurement dolly 2 can be to be placed on the high speed carrier loader 3 that can walk at a high speed, are transported to (as shown in Figure 3) of measure field by high speed carrier loader 3.
This method implement device is simple, owing to adopt the digital camera technology, therefore follow mechanism that need not target, simplify system, also reduced the maintenance cost of system, need not manual-alignment process loaded down with trivial details in the laser optical method, operation is more directly perceived simultaneously, can measure situation by the screen direct viewing, be reduced in situations such as occurring losing lock and error tracking in the measurement process, improve work efficiency.Therefore the improvement of this method process algorithm can better be applicable to the measurement of deep camber orbit parameter, has changed the shortcoming that is subjected to the radius of curvature restriction when methods such as laser are used for the curve circuit measurement.
Claims (8)
1. track curve parameter measuring method, it is characterized in that: on tested track circuit, place two measurement dollies, wherein one is the fixation measuring dolly, one is the traverse measurement dolly, on the fixation measuring dolly, digital camera is housed, on the traverse measurement dolly, optical target is housed, form an orbital curve parameter photographic measurement system by traverse measurement dolly and fixation measuring dolly, digital camera by the traverse measurement dolly move with moving process in the optical target optical imagery of fixation measuring dolly orbital curve parameter absolute reference coordinate is carried out Measurement and analysis, finish a track curve parameter measuring process.
2. a kind of track curve parameter measuring method as claimed in claim 1 is characterized in that: in a track curve parameter measuring process, at first with fixation measuring cart stationary at test line, the traverse measurement dolly is placed in the other end of test line; Again the digital camera on the fixation measuring dolly is aimed at the optical target that is installed on the traverse measurement dolly, take the initial position value O ' that optical target draws a target, by routine calculate obtain left and right sides track to the optical target center O ' level and vertical distance value, again with the level of left and right sides track and vertical distance value and optical target center O ' spatial coordinates superimposed, can draw spatial coordinates at this measurement point track; Start the traverse measurement dolly again, the traverse measurement dolly travels with certain speed to the fixation measuring dolly along rail, camera in this process on the fixation measuring dolly is constantly noted down the relative coordinate of target, and send these data to the traverse measurement dolly, orbit parameter computing machine on the traverse measurement dolly receives this data, according to aforementioned principles, the orbital data that each measurement point is recorded combines with the distance value that the range finding wheel records, thereby goes into complete orbit space parametric curves.
3. a kind of track curve parameter measuring method as claimed in claim 2 is characterized in that: described track curve parameter measuring process may further comprise the steps:
The first step is loaded into two measurement dollies on the delivery platform of high speed carrier loader, is transported to the rail section of desiring construction operation at a high speed;
Second step, arrive the designated area after, load/put and unload mechanical device and unload and be placed in rail on from the high speed carrier loader traverse measurement dolly and two measurement dollies of fixation measuring dolly;
In the 3rd step, measure dolly and travel respectively to the two ends of track section to be measured; The fixation measuring dolly, make it and to move along rail, open wireless digital broadcasting station, between traverse measurement dolly and fixation measuring dolly, set up the transmission and the receiving cable of data, high-resolution digital camera on the fixation measuring dolly is aimed at the optical target that is installed on the traverse measurement dolly, and the position of taking and calculating target this moment is as initial value and record;
The 4th step, the traverse measurement dolly is along track fixation measuring dolly low speed driving, high-resolution digital camera on the fixation measuring dolly continues to take the optical target on the traverse measurement dolly, method by image calculates in the successive image optical target with respect to the skew of initial position, and send this value among the traverse measurement dolly orbit parameter computing machine by wireless digital broadcasting station, simultaneously, the orbit parameter computing machine is continuous collecting distance measuring sensor output valve in the process of moving, is used for determining that how much mid points of dolly measurement and rail rail are along distance; Gather the obliquity sensor output valve, two rail diff-Hs about being used for determining; Gather the rotary encoder output valve, be used for the shift value that definite traverse measurement dolly moves along rail, on this basis, the digital image processing system output valve that the combining wireless data radio station is transmitted, the orbit parameter computing machine just can calculate the curve state data value of track reality;
In the 5th step, the orbit parameter COMPUTER CALCULATION goes out the theoretical situation data of track, and itself and real data are compared, and generates discrepancy report and output;
The 6th step finished when measuring the dolly operation, and the high speed carrier loader will be measured dolly again and be loaded on the delivery platform and by latching device and lock the operation field of departing.
4. track curve parameter measuring system and device, it is characterized in that: measuring system is a cover track absolute reference coordinate measuring system, comprise traverse measurement dolly and fixation measuring dolly, on the fixation measuring dolly, digital camera is housed, on the traverse measurement car, optical target is housed, forms an orbital curve parameter photographic measurement system by traverse measurement dolly and fixation measuring dolly.
5. track curve parameter measuring system and device as claimed in claim 4, it is characterized in that: also be equipped with on traverse measurement dolly or the fixation measuring dolly be used for determine measuring how much mid points and rail rail along the distance measuring sensor of distance, be used to measure about the obliquity sensor of two rail diff-Hs, measure the rotary encoder of the move distance of dolly, a cover shows orbit theory parameter and actual parameter and calculates the orbit parameter computing machine of both differences.
6. track curve parameter measuring system and device as claimed in claim 5 is characterized in that: at the traverse measurement dolly power-driven system that move back and forth of control dolly along rail is housed.
7. track curve parameter measuring system and device as claimed in claim 5, it is characterized in that: carry out the signal transmission apparatus that data transmit and receive at traverse measurement dolly and fixation measuring dolly, communicate by wired or wireless between traverse measurement dolly and the fixation measuring dolly.
8. as the described track curve parameter measuring system and device of any claim of claim 4-7, it is characterized in that: described traverse measurement dolly and fixation measuring dolly are installed on the high speed carrier loader, unload mechanical device traverse measurement dolly and fixation measuring dolly are put down or pack up when arriving assigned address by loading/putting, being provided with one at the high speed carrier loader settles and the fixing delivery platform of traverse measurement dolly and fixation measuring dolly, the delivery platform is provided with latching device, the latching device of when being implemented in the carrier loader high-speed cruising dolly being fixed.
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| CN 201010590612 CN102092405B (en) | 2010-12-16 | 2010-12-16 | Method and system device for measuring rail curve parameters |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103253286A (en) * | 2013-05-31 | 2013-08-21 | 株洲时代电子技术有限公司 | Rail parameter measuring method |
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