CN112857543A - Dynamic weighing system for detecting wide-speed full-driving behavior under off-site law enforcement - Google Patents
Dynamic weighing system for detecting wide-speed full-driving behavior under off-site law enforcement Download PDFInfo
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- CN112857543A CN112857543A CN202110043383.0A CN202110043383A CN112857543A CN 112857543 A CN112857543 A CN 112857543A CN 202110043383 A CN202110043383 A CN 202110043383A CN 112857543 A CN112857543 A CN 112857543A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles
- G01G19/03—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing during motion
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Abstract
The invention discloses a dynamic weighing system for detecting wide-speed full-driving behaviors under an off-site enforcement method, which is arranged on a road bridge and comprises a weighing component and a computing system connected with the weighing component, wherein the weighing component and a highway pavement are integrally installed and formed by one-time pouring, and a feed line is led out and accessed into a data processing unit; the weighing assembly comprises ground induction coils, narrow plate sensors, sensor feeders and ground induction coil feeders, wherein the ground induction coils are used for detecting and separating vehicles, one ground induction coil is arranged at each time of pulling, the narrow plate sensors are used for detecting the mass of passing vehicles, and the narrow plate sensors are arranged in two rows in parallel at intervals of 2.5 meters at the front and the back of each time of pulling; the invention has the characteristics of convenient installation, short construction period, suitability for various road widths, high weighing precision, quick dynamic response, wide application speed range, integrated installation and one-step pouring forming of the weighing component and the road surface, integration with the road, and no need of cleaning and maintenance.
Description
Technical Field
The invention relates to a weighing system, in particular to a dynamic weighing system for detecting wide-speed full-driving behaviors under an off-site enforcement law.
Background
In the field of public transportation, in order to manage vehicle overload, protect the safety of road bridges and reduce traffic accidents, the quality of motor vehicles needs to be monitored.
Static loadometer (fixed station for overtaking and source enterprise station for overtaking) is adopted for early overtaking, and vehicles need to be stopped, flameout and weighed. Low passing efficiency, complex operation, cheating and no dynamic weighing. After improvement on the basis of static wagon balance, the weighing device can weigh low-speed vehicles (0-10km /), and due to the low adaptive speed range, personnel are required to clear accumulated water and sludge in the using process, the weighing device can only be applied to high-speed entrance weighing charging or entrance overtaking, and cannot be applied to off-site law enforcement, non-stop and over-limit detection in a normal traffic state.
Therefore, there is a need to provide a new technical solution for a dynamic weighing system for detecting wide-speed full-driving behavior under off-site enforcement to overcome the above difficulties.
Disclosure of Invention
The invention aims to provide a dynamic weighing system for detecting wide-speed full-driving behaviors under an off-site enforcement method, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a dynamic weighing system for detecting wide-speed full-running behaviors under off-site enforcement is characterized in that the weighing system is arranged on a road and a bridge and comprises a weighing component and a computing system connected with the weighing component, the weighing component and a road surface are integrally installed and formed by one-time pouring, and a feeder line is led out and connected into a data processing unit; the weighing assembly comprises ground induction coils, narrow plate sensors, sensor feeders and ground induction coil feeders, wherein the ground induction coils are used for detecting and separating vehicles, one ground induction coil is arranged at each dragging position, the narrow plate sensors are used for detecting the mass of passing vehicles, the narrow plate sensors are arranged in two rows and are spaced by 2.5 meters at the front and back positions at each dragging position in parallel, the sensor feeders are buried under the road surface and connected with the narrow plate sensors for transmitting signal data collected by the narrow plate sensors, and the ground induction coil feeders are buried under the road surface and connected with the ground induction coils for transmitting the signal data of the ground induction coils.
As a preferred embodiment of the present invention: the length L dimension of the narrow plate sensor comprises the specification of 1.5 meters, 1.75 meters, 2 meters and 2.2 meters.
As a still further preferable embodiment of the present invention: the weighing component is a quartz dynamic weighing system, the quartz dynamic weighing system comprises a steel carrier, a sensor, a level converter, a data interface and a sealing plate, and the sensor comprises a strain gauge and piezoelectric ceramics.
Compared with the prior art, the invention has the beneficial effects that: the invention has the characteristics of convenient installation, short construction period, suitability for various road widths, high weighing precision, quick dynamic response, wide application speed range, integrated installation and one-step pouring forming of the weighing component and the road surface, integration with the road, and no need of cleaning and maintenance. The method can be used for weighing and detecting the passing vehicles at wide speed (0.5-100km/h) under the condition of not influencing the passing of the vehicles, can detect the running behaviors including but not limited to normal running, cross-road running, reverse running, S-shaped running, stop and go and the like, compensates the weight through a deep learning algorithm, ensures that the weighing precision reaches the dynamic 5-level standard required by JJJG 907-2006 dynamic vehicle highway automatic weighing apparatus calibration regulation, and meets the requirements of off-site law enforcement, non-stop running and over-limit detection weighing.
Drawings
Fig. 1 is a schematic diagram of the present system.
In the figure, 1 is a ground induction coil, 2 is a narrow plate sensor, 3 is a sensor feeder line, and 4 is a ground induction coil feeder line.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, in the embodiment of the present invention, a dynamic weighing system for detecting wide-speed full-driving behaviors under an off-site enforcement method is provided, where the weighing system is disposed on a road and a bridge, and includes a weighing component and a computing system connected to the weighing component, the weighing component is integrally mounted with a road surface and formed by one-time casting, and a feeder is led out to access a data processing unit, so that a passing vehicle can be weighed and detected at a wide speed (0.5-100km/h) without affecting the passing of the vehicle; the weighing assembly comprises a ground induction coil 1, narrow plate sensors 2, sensor feeders 3 and a ground induction coil feeder 4, wherein the ground induction coil 1 is used for detecting and separating vehicles, one ground induction coil 1 is arranged at each time of dragging, the narrow plate sensors 2 are used for detecting the mass of passing vehicles, the narrow plate sensors 2 are arranged in two rows and are spaced by 2.5 meters at the front and back sides at each time of dragging in parallel, the sensor feeders 3 are buried under the road surface and connected with the narrow plate sensors 2 for transmitting signal data collected by the narrow plate sensors 2, and the ground induction coil feeders 4 are buried under the road surface and connected with the ground induction coils 1 for transmitting the signal data of the ground induction coils 1.
The calculation mode of the calculation system is as follows: s1, establishing a differential equation of a weighing part consisting of the ground induction coil 1 and the narrow plate sensor 2;
s2, modeling the ground induction coil 1 and the narrow plate sensor 2 by using a time domain modeling method in test system dynamics, and determining the dynamic parameter natural frequency omega n and the damping ratio zeta of the system;
s3, adding a series compensation link Hc (S) which is connected in series behind H (S) of the sensor to form an equivalent system He (S);
s4, establishing a data model of the sensor, and calculating step correspondence; and identifying Hc (z) of the compensation link by using a least square method;
s5, introducing a fuzzy control algorithm to eliminate the influence of the impact force F (t);
s6, introducing a humanoid intelligent integral control algorithm to eliminate the influence of the vacancy volume delta G;
s7, in a fuzzy set, an error E and an error change rate C are quantized fuzzy variables, a control quantity U is output, and all the domains of the error E and the error change rate C are { -N, …, -1,0,1, …, N }, wherein alpha, beta and gamma are weighting factors, and the alpha, the beta and the gamma belong to 0, 1;
s8, inputting the error of the previous weighing times: en-1, en-2;
s9, calculating error change: judging the value of E & C, if E & C is greater than 0 or E & ltnoteq & gt 0, increasing the integral term sigma & lten-1 + en-2, otherwise, not increasing the integral term;
s10, calculating an error adjustment amount: Δ e ═ β en-1+ γ C + (1- β - γ) Σ ei or Δ e ═ α en-1+ (1- α) C; s11, calculating and adjusting time: Δ t ═ Δ e/k, and hence the valve closing time t2 ═ t1+ Δ t.
In S1, the differential equation of the weighing part formed by the ground sensing coil 1 and the narrow plate sensor 2 can be equivalent to a second-order system:
wherein: m-weight the assembly mass, kg;
m (t) -vehicle mass, kg;
c-system equivalent damping coefficient;
c 1-System equivalent stiffness, N/m;
f (t) -the impact force of the tire pressure on the sensor, N;
x is the displacement of the scale body relative to the reference zero point, m;
g-acceleration of gravity, m/s 2.
In S2, unit pulses generated by a hammering method are used as an excitation source to obtain an experimental transition process curve, then the transition curve is analyzed, and an oscillation period and a peak value are measured out from a graph by using a graphical method, so that dynamic parameters omega n and zeta of a system transfer function can be calculated; the reference formula can be calculated as follows:
where A1, An-two peaks on the curve separated by n cycles;
f-the oscillation frequency of the transition process, Hz, can be obtained from the oscillation period T measured directly on the curve:
f＝T/1。
in S3:
where k should be equal to the static sensitivity of the sensor, and in order to broaden the operating band of the low frequency part of the sensor and increase the response speed, the damping ratio of the dynamic compensation filter is selected to be 0.707, and its natural frequency can be determined according to the broadened operating band.
In S5, the adjustment time Δ t is added to the predicted closing time t; introducing a fuzzy control algorithm, simulating the weighing behavior of a person according to the previous weighing conditions, calculating the adjusting time delta t of the current weighing, and calculating the vibration moment t1 of the wheel as e/k, wherein k is the slope of an AB section in an ideal weighing curve graph; and adjusting the vibration time of the wheel shaft to obtain the following real vibration time: t2 ═ t1+ Δ t.
The invention has the characteristics of convenient installation, short construction period, suitability for various road widths, high weighing precision, quick dynamic response, wide application speed range, integrated installation and one-step pouring forming of the weighing component and the road surface, integration with the road, and no need of cleaning and maintenance. The method can be used for weighing and detecting the passing vehicles at wide speed (0.5-100km/h) under the condition of not influencing the passing of the vehicles, can detect the running behaviors including but not limited to normal running, cross-road running, reverse running, S-shaped running, stop and go and the like, compensates the weight through a deep learning algorithm, ensures that the weighing precision reaches the dynamic 5-level standard required by JJJG 907-2006 dynamic vehicle highway automatic weighing apparatus calibration regulation, and meets the requirements of off-site law enforcement, non-stop running and over-limit detection weighing.
Specifically, the length L of the narrow plate sensor 2 includes 1.5 m, 1.75 m, 2 m, and 2.2 m, and is suitable for installation in different road widths.
In actual selection, the weighing component can also adopt a quartz dynamic weighing system, the quartz dynamic weighing system comprises a steel carrier, a sensor, a level converter, a data interface and a sealing plate, the sensor comprises a strain gauge and piezoelectric ceramics, and the strain gauge and the piezoelectric ceramics are optimally combined to measure the micro deformation of the copper carrier, so that the weight of a moving object is measured.
The invention has the advantages that: 1. the application scene is mainly the off-site law enforcement, non-stop and over-limit detection of the highway bridge, the weighing precision reaches the dynamic 5-level standard required by JJJG 907-2006 dynamic vehicle and highway automatic weighing apparatus verification regulation, and the weighing requirement of the off-site law enforcement, non-stop and over-limit detection is met.
2. The narrow plate sensor 2 is used as the core of a weighing component, the wide speed (0.5-100km/h) weighing detection is carried out on passing vehicles, the driving behaviors including but not limited to normal driving, cross-road driving, reverse driving, S-shaped driving, stop and go and the like can be detected, and the weight is compensated through a deep learning algorithm.
3. The narrow plate sensor 2 and the ground induction coil 1 are arranged in a specific mode, and the weighing component and the road surface are integrally installed and formed in a one-step pouring mode; the integrated structure, the whole body has no movable parts, the design and the manufacture are high in strength, and the service life is longer than 4000 ten thousand times; weighing sensor is removable, and the region of weighing does not have dead zone, sensor installation side by side, seamless overlap joint of weighing.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (3)
1. A dynamic weighing system for detecting wide-speed full-running behaviors under off-site enforcement is characterized by comprising a weighing component and a computing system connected with the weighing component, wherein the weighing component and a highway pavement are integrally installed and formed by one-time pouring, and a feed line is led out and accessed into a data processing unit; the weighing assembly comprises a ground sensing coil (1), narrow plate sensors (2), sensor feeders (3) and ground sensing coil feeders (4), wherein the ground sensing coil (1) is used for detecting and separating vehicles, one ground sensing coil (1) is arranged at each pull-up position, the narrow plate sensors (2) are used for detecting the mass of passing vehicles, two rows of narrow plate sensors (2) are arranged at each pull-up position in parallel at intervals of 2.5 meters, the sensor feeders (3) are buried under the road surface and connected with the narrow plate sensors (2) for transmitting signal data collected by the narrow plate sensors (2), and the ground sensing coil feeders (4) are buried under the road surface and connected with the ground sensing coils (1) for transmitting signal data of the ground sensing coils (1).
2. The system of claim 1, wherein the length L dimension of the narrow plate sensor (2) comprises 1.5 meter, 1.75 meter, 2 meter, 2.2 meter specifications.
3. The system of claim 1 or 2, wherein the weighing component is a quartz-type dynamic weighing system, the quartz-type dynamic weighing system comprises a steel carrier, a sensor, a level shifter, a data interface and a sealing plate, and the sensor comprises a strain gauge and a piezoelectric ceramic.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110043383.0A CN112857543A (en) | 2021-01-13 | 2021-01-13 | Dynamic weighing system for detecting wide-speed full-driving behavior under off-site law enforcement |
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| CN202110043383.0A CN112857543A (en) | 2021-01-13 | 2021-01-13 | Dynamic weighing system for detecting wide-speed full-driving behavior under off-site law enforcement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113686421A (en) * | 2021-08-31 | 2021-11-23 | 山东新凌志检测技术有限公司 | Vehicle detection device and method |
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| CN209927263U (en) * | 2019-05-30 | 2020-01-10 | 河南紫光捷通有限公司 | Narrow strip type dynamic weighing system |
| CN210293409U (en) * | 2019-05-08 | 2020-04-10 | 王洪辉 | Bidirectional six-lane highway main line dynamic vehicle weighing system |
| CN210741643U (en) * | 2019-11-06 | 2020-06-12 | 北京中山交通科技有限公司 | Preset narrow strip high-speed weighing system |
| CN112197845A (en) * | 2019-11-06 | 2021-01-08 | 北京中山交通科技有限公司 | Preset high-speed weighing system with complete weighing narrow strip |
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2021
- 2021-01-13 CN CN202110043383.0A patent/CN112857543A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202158894U (en) * | 2011-07-29 | 2012-03-07 | 昆山市工业技术研究院有限责任公司 | Dynamic vehicle weighing system |
| CN106530737A (en) * | 2016-12-01 | 2017-03-22 | 郑州海为电子科技有限公司 | Non-scene law enforcement high-speed dynamic weighing detection system and method |
| CN210293409U (en) * | 2019-05-08 | 2020-04-10 | 王洪辉 | Bidirectional six-lane highway main line dynamic vehicle weighing system |
| CN209927263U (en) * | 2019-05-30 | 2020-01-10 | 河南紫光捷通有限公司 | Narrow strip type dynamic weighing system |
| CN210741643U (en) * | 2019-11-06 | 2020-06-12 | 北京中山交通科技有限公司 | Preset narrow strip high-speed weighing system |
| CN112197845A (en) * | 2019-11-06 | 2021-01-08 | 北京中山交通科技有限公司 | Preset high-speed weighing system with complete weighing narrow strip |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113686421A (en) * | 2021-08-31 | 2021-11-23 | 山东新凌志检测技术有限公司 | Vehicle detection device and method |
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Application publication date: 20210528 |