CN104596628B - Single table surface track scale metering method and metering system - Google Patents
Single table surface track scale metering method and metering system Download PDFInfo
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- CN104596628B CN104596628B CN201510012445.6A CN201510012445A CN104596628B CN 104596628 B CN104596628 B CN 104596628B CN 201510012445 A CN201510012445 A CN 201510012445A CN 104596628 B CN104596628 B CN 104596628B
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Abstract
The embodiment of the invention discloses a kind of single table surface track scale metering method and metering system, wherein, single table surface track scale metering method includes: the first wheel shaft wheel of acquisition tank car very first time interval between two adjacent groups sensor；The translational speed of tank car is drawn according to the distance between very first time interval and two adjacent groups sensor；Obtain the first wheel shaft wheel of tank car and the second wheel shaft wheel the second time interval through first group of sensor；Translational speed according to tank car and the second time interval, it is judged that draw the vehicle of tank car；Obtain the weight through each wheel shaft wheel corresponding to single table surface track scale tank car；Vehicle according to tank car and the weight of each wheel shaft wheel draw the weight of tank car；From which further follow that the weight of car group.The single table surface track scale metering method provided by the present invention can carry out weight measurement to the tank car of unidirectional operation and whole car group, it is to avoid reconstructs many table tops track scale and measures tank car weight, thus effectively reduces cost.
Description
Technical Field
The invention relates to the technical field of dynamic rail weighers, in particular to a single-platform rail weigher measuring method and a single-platform rail weigher measuring system.
Background
With the technical progress of various industries, a dynamic rail weighbridge may correspond to a plurality of delivery sources (for example, a molten iron rail weighbridge corresponds to a plurality of blast furnaces or steel-making furnaces, an ore weighbridge corresponds to a plurality of mines, and the like) in more and more forms, so that the metering amount is increased continuously, the types of metering vehicles are changed continuously (for example, the coupler knuckle distance and the wheel track distance of the vehicle are changed continuously from four shafts to six circles), and even the phenomenon of mixed metering of different vehicle types occurs.
In the prior art, the method for measuring the vehicle is to measure the vehicle through the earliest used dynamic scale, however, the earliest used dynamic scale is mostly the measurement of a single vehicle type realized by a single platform surface, that is, the model of the vehicle type and the number of wheels of a wheel axle corresponding to the vehicle type are known, and then the weight of each wheel axle when the vehicle passes through is measured through the dynamic scale, so that the weight of the single vehicle type is obtained; however, this kind of measurement method cannot satisfy the measurement of the existing multiple vehicle types and the mixed compiling of different vehicle types, and in the case of the mixed compiling of multiple vehicle types, because the lengths of the vehicle types are different (or longer than the length of the table top, or shorter than the length of the table top, or the same as the length of the table top), the weight of the corresponding vehicle cannot be confirmed when each vehicle is measured, and the measurement is inaccurate or impossible. At present, when the metering is carried out after the multi-vehicle type and different vehicle types are mixed and compiled, the common solution is to reform the old track scale with a single table board and use the track scale with multiple table boards for metering.
However, by modifying the single-deck track scale into the multi-deck track scale, not only can partial vehicle types not be measured on the multi-deck track scale, but also the weight of each tank car can be measured, and weight loss in the measuring process is easily caused; in addition, in the process of reconstructing the track scale, the track scale foundation needs to be reconstructed, and the vehicles cannot be metered for a long time when old track lines are disassembled, foundation track laying, concrete pouring and the like, so that the metering cost is greatly increased.
Disclosure of Invention
The embodiment of the invention provides a single-platform track metering method, which aims to solve the problems that in the process of reconstructing a track scale in the prior art, old track lines are disassembled, basic track laying, concrete pouring and the like take a long time and vehicles cannot be metered, and the metering cost is greatly increased.
In order to solve the technical problem, the embodiment of the invention discloses the following technical scheme:
the embodiment of the invention provides a single-platform rail weighbridge metering method, which comprises the following steps:
acquiring a first time interval when a first wheel of a first wheel shaft of the tank car passes through a first group of sensors and a second group of sensors;
obtaining the moving speed of the tank car according to the first time interval and the distance between the first group of sensors and the second group of sensors;
obtaining a second time interval for the first axle wheel and the second axle wheel of the tank car to pass the first set of sensors;
judging the vehicle type of the tank car according to the moving speed of the tank car and the second time interval;
acquiring the weight of each wheel axle wheel corresponding to the tank car when the tank car passes through a single platform surface railroad track scale;
obtaining the weight of the tank car according to the type of the tank car and the weight of each wheel axle wheel corresponding to the tank car;
the weight of each tanker is obtained and the weight of the entire consist is calculated.
Optionally, the first group of sensors and the second group of sensors are respectively arranged at the lower end of a bearing platform of the single platform rail weighbridge; wherein,
the distance between the first group of sensors and the second group of sensors is smaller than or equal to the length of the table top of the bearing table.
Optionally, the obtaining a time interval between the first set of sensors and the second set of sensors when the first wheel of the first wheel axle of the tank truck passes through comprises:
initiating timing when the first axle wheel passes the first set of sensors;
when the first wheel shaft wheel passes through the second group of sensors, stopping timing to obtain timing time, wherein the timing time is equal to the first timing time;
the first timing time is the first time interval.
Optionally, the determining of the model of the tank car includes:
initiating timing when the first axle wheel passes the first set of sensors;
stopping timing when a second wheel axle wheel of the tank car passes through the first group of sensors to obtain timing time, wherein the timing time is equal to second timing time;
the second timing time is the second time interval.
Optionally, the determining the vehicle type of the tank car according to the moving speed of the tank car and the second time interval includes:
obtaining the distance between the wheels of the first wheel shaft and the wheels of the second wheel shaft according to the second time interval and the moving speed of the tank car;
judging whether the distance between the wheels of the first wheel shaft and the wheels of the second wheel shaft is equal to the distance between the wheels of the wheel shaft of a preset vehicle type or not;
and obtaining the vehicle type of the tank car when the distance between the wheels of the first wheel shaft and the wheels of the second wheel shaft is equal to the distance between the wheels of the wheel shafts of the preset vehicle type.
Optionally, the obtaining the weight of the tank car according to the model of the tank car and the weight of each wheel axle wheel corresponding to the tank car includes:
acquiring the number of wheel shafts of the tank car according to the type of the tank car;
and obtaining the weight of the tank car according to the number of the wheel shafts and the weight of each wheel shaft wheel corresponding to the wheel shafts, wherein the weight of the tank car is the sum of the weights of each wheel shaft wheel corresponding to the tank car.
The embodiment of the invention also provides a single platform track scale metering system, which comprises: the device comprises a bearing table, a sensor, a weighing converter and a display device; wherein,
the sensor is arranged at the lower end of the bearing platform and used for converting weight information of the tank car passing through into an electric signal and sending the electric signal to the weighing converter;
the weighing converter is respectively connected with the sensor and the display equipment.
Optionally, the sensors include a first set of sensors and a second set of sensors, wherein,
the first group of sensors and the second group of sensors are respectively arranged at the lower end of the bearing platform, and the first group of sensors and the second group of sensors are respectively arranged at two sides of the bearing platform;
the first group of sensors and the second group of sensors are respectively connected with the weighing converter.
Optionally, the load cell includes: I/O interface circuitry, a CPU module, comparator circuitry, storage circuitry and timing circuitry, wherein,
the CPU module is respectively connected with the I/O interface circuit, the comparator circuit, the storage circuit and the timing circuit, and the timing circuit is connected with the sensor;
the CPU module is respectively connected with the sensor and the display equipment through the I/O interface circuit;
the storage circuit is used for storing the preset vehicle type of the tank car, and the comparator circuit is used for comparing and judging the vehicle type of the tank car.
Optionally, the load cell further includes at least two timing circuits: a first timing circuit and a second timing circuit, wherein,
the first timing circuit is respectively connected with a first group of sensors and a second group of sensors of the sensors;
the second timing circuit is connected to the first set of sensors.
According to the technical scheme, the single platform rail weighbridge metering method comprises the steps of obtaining a first time interval when a first wheel axle wheel of the tank car passes through a first group of sensors and a second group of sensors, obtaining the moving speed of the tank car according to the first time interval and the distance between the two sensors, judging the type of the tank car after obtaining a second time interval when the first wheel axle wheel and the second wheel axle wheel of the tank car pass through the first group of sensors, obtaining the weight of the tank car according to the obtained weight of the wheel axle wheel corresponding to the tank car when the first wheel axle wheel and the second wheel axle wheel pass through a platform surface of a bearing platform of the single platform rail weighbridge, and obtaining the weight of a train set consisting of a plurality of different tank cars. The weight of the passing vehicle set (comprising the tank cars of the same vehicle type or different vehicle types) is measured on the single-platform rail weighbridge, so that the problem that the measurement must be carried out by arranging the multiple-platform rail weighbridge in the prior art is avoided, the cost for constructing the multiple-platform rail weighbridge is effectively reduced, the tank cars of different vehicle types can be measured by the single-platform rail weighbridge measuring method, and the application range of the single-platform rail weighbridge in the prior art is effectively enlarged.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic flow chart of a single-platform rail balance metering method according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of another single-deck rail weighbridge measurement method according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of another single-platform rail balance measurement method according to an embodiment of the present invention;
fig. 4 is a schematic flow chart of another single-stage rail balance measurement method according to an embodiment of the present invention;
fig. 5 is a schematic flow chart of another single-deck rail weighbridge measurement method according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a single-platform rail weighbridge metering system according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of another single-stage rail weighbridge measurement system according to an embodiment of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all 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.
Referring to fig. 1, a schematic flow chart of a single-deck rail weighbridge metering method provided in an embodiment of the present invention is used for a whole-rolling truck group (which may include a plurality of trucks of the same vehicle type or trucks of different vehicle types).
As shown in the figure, the single platform rail balance metering method provided by the embodiment of the invention comprises the following steps:
step S100: acquiring a first time interval when a first wheel of a first wheel shaft of the tank car passes through a first group of sensors and a second group of sensors;
when a tank car passes through the single-platform rail weighbridge, the length of the tank car is required to be obtained through the single-platform rail weighbridge according to the moving time and the moving distance of the tank car on the single-platform rail weighbridge, specifically, the tank car generally comprises front and rear wheel axle wheels (a first wheel axle wheel and a second wheel axle wheel), the first wheel axle wheel of the tank car is positioned at the front end of the tank car along the running direction of the tank car, and the second wheel axle wheel is close to the first wheel axle wheel; so as to obtain a first time interval of the first wheel-axle wheel passing between the first group of sensors and the second group of sensors according to the time of the first wheel-axle wheel passing through the first group of sensors and the time of the second group of sensors arranged on the single platform rail weighbridge; in particular, the step of obtaining the first time interval can be seen in fig. 2.
Referring to fig. 2, a schematic flow chart of a single platform rail weighbridge measurement method provided in this embodiment, specifically a schematic flow chart of acquiring a first time interval between the first set of sensors and the second set of sensors when the wheel of the first wheel axle of the tank car passes through the first set of sensors, where the step S100 includes:
step S101: initiating timing when the first axle wheel passes the first set of sensors;
wherein, the bearing platform lower extreme of single mesa rail weighbridge is provided with two sets of sensors in this embodiment: the first group of sensors and the second group of sensors are positioned at the position where the tank car firstly contacts the tank car in the traveling direction of the tank car, and the distance between the first group of sensors and the second group of sensors is less than or equal to the length of the platform surface of the bearing platform; when the tank truck passes through the single platform track scale, the first wheel axle wheel firstly passes through the first group of sensors, so that when the first wheel axle wheel passes through the first group of sensors, the first group of sensors are stressed, and a timer or a timing circuit connected with the first group of sensors is started to time, and the time of the first wheel axle wheel passing through a certain distance is recorded. The first set of sensors or the second set of sensors includes at least two sensors, and both sensors are collinear in the direction of tank car travel.
Step S102: when the first wheel shaft wheel passes through the second group of sensors, stopping timing to obtain timing time, wherein the timing time is equal to the first timing time;
the first wheel shaft wheel continues to operate after passing through the first group of sensors, when the first wheel shaft wheel operates to the second group of sensors, the second group of sensors are stressed, a timer or a timing circuit connected with the second group of sensors counts time to obtain timing time, and the time interval is obtained according to the time when the first wheel shaft wheel passes through the first group of sensors and the time when the first wheel shaft wheel passes through the second group of sensors; in this embodiment, the timer or the timing circuit connected to the first group of sensors is simultaneously connected to the second group of sensors, so that when the first wheel passes through the second group of sensors, the timer or the timing circuit stops timing, and the timing time obtained at this time is the first timing time, which is the first time interval of step S100.
Step S103: the first timing time is the first time interval;
note that, in step S102, the following description is given: the timing is stopped, the time when the first wheel axle wheel passes through the second group of sensors is recorded through the timer or the timing circuit instead of representing that the timer or the timing circuit does not count time any more, so that the time interval when the same wheel axle wheel of the tank car passes through the first group of sensors and the second group of sensors on the single platform track scale respectively is obtained; meanwhile, when the time interval is obtained, if the timer or the timing circuit starts timing from zero when the first wheel axle wheel passes through the first group of sensors, the time value of the timer or the timing circuit is the time interval when the first wheel axle wheel passes through the second group of sensors; if the timer or timing circuit records a first time value when the first wheel passes the first set of sensors, then the timer or timing circuit records a second time value when the first wheel passes the second set of sensors, then the difference between the second time value and the first time value is a first time interval when the first wheel passes the first set of sensors and the second set of sensors, respectively.
Step S200: obtaining the moving speed of the tank car according to the time interval and the distance between the first group of sensors and the second group of sensors;
wherein, the time interval that the wheels of the first wheel shaft of the tank truck respectively pass through the first group of sensors and the second group of sensors is obtained according to the step S100 and is set as T1; because the first group of sensors and the second group of sensors are respectively arranged at the lower end of the bearing platform of the single platform rail weighbridge, and the platform surface lengths of the bearing platform are both preset lengths, the distance between the first group of sensors and the second group of sensors can be obtained as S according to the arranged bearing platform of the single platform rail weighbridge (the distance S is the preset length, if the first group of sensors and the second group of sensors are respectively arranged at the two ends of the bearing platform, the distance S is equal to the platform surface length of the bearing platform), the speed of the tank car passing through the single platform rail weighbridge is marked as V, wherein,it should be noted that the tank car moves at a constant speed when passing through the single platform rail weighbridge, so as to obtain the speed V of the tank car passing through the single platform rail weighbridge.
Step S300: obtaining a second time interval for the first axle wheel and the second axle wheel of the tank car to pass the first set of sensors;
when the first wheel axle wheel of the tank car passes through the first group of sensors, a timer or a timing circuit connected with the first group of sensors starts to time, and when the second wheel axle wheel passes through the first group of sensors, the timer or the timing circuit records the timing time at the moment, namely the second time interval.
When the second time interval is obtained, the time interval of the two wheels of the axle of the tank car passing through the first group of sensors is not limited to be calculated, and the distance between the two wheels of the axle can be obtained according to the second time interval and the speed of the tank car by obtaining the time interval of the two wheels of the axle of the tank car passing through the second group of sensors.
Referring to fig. 3, a schematic flow chart of another single-deck rail weighbridge measurement method provided in the embodiment of the present invention, specifically a schematic flow chart of a second time interval when a first wheel axle wheel and a second wheel axle wheel of a tank truck pass through a first set of sensors, where the step S300 includes:
step S301: initiating timing when the first axle wheel passes the first set of sensors;
in this embodiment, the first group of sensors disposed at the lower end of the bearing platform of the single-deck railroad track scale is located at a position where the tank car first contacts the tank car in the traveling direction of the tank car, and when the tank car passes through the single-deck railroad track scale, the first wheel axle wheel first passes through the first group of sensors, so that when the first wheel axle wheel passes through the first group of sensors, the first group of sensors is stressed, thereby starting a timer or a timing circuit connected with the first group of sensors to perform timing. In practice, the first group of sensors may be additionally connected to a timer or timing circuit, so that the second time interval can be calculated by individually timing.
Step S302: stopping timing when a second wheel axle wheel of the tank car passes through the first group of sensors to obtain timing time, wherein the timing time is equal to second timing time;
and the second wheel axle wheel of the tank truck is the wheel axle wheel adjacent to the first wheel axle wheel in the traveling direction of the tank truck, so that when the second wheel axle wheel passes through the second group of sensors, a timer or a timing circuit connected with the second group of sensors stops timing, the timing time at the moment is recorded and is recorded as second timing time, and the second timing time is a second time interval when the first wheel axle wheel and the second wheel axle wheel of the tank truck pass through the first group of sensors.
Step S303: the second timing time is the second time interval;
it should be noted that the timing is stopped, which does not mean that the timer or the timing circuit does not count any more, but the time when the second wheel axle wheel passes through the first group of sensors is recorded by the timer or the timing circuit, so as to obtain the time interval when the adjacent wheel axle wheel of the tank car passes through the first group of sensors on the single platform track scale; meanwhile, when the second time interval is obtained, if the timer or the timing circuit starts timing from zero when the first wheel axle wheel passes through the first group of sensors, the time value of the timer or the timing circuit is the time interval when the second wheel axle wheel passes through the first group of sensors; if the timer or timing circuit records a first time value when the first wheel passes the first set of sensors, then the timer or timing circuit records a second time value when the second wheel passes the first set of sensors, then the difference between the second time value and the first time value is a second time interval when the first wheel and the second wheel pass the first set of sensors.
Step S400: judging the vehicle type of the tank car according to the moving speed of the tank car and the second time interval;
the moving speed of the tank car is obtained through the step S200, and the distance between the first wheel axle wheel and the second wheel axle wheel of the tank car can be obtained according to the second time interval of the first group of sensors of the first wheel axle wheel and the second wheel axle wheel of the tank car calculated in the step S300, so that the distance between the first wheel axle wheel and the second wheel axle wheel of the tank car can be compared with the distance between the two wheel axle wheels of the preset tank car, and the type of the tank car can be obtained.
Referring to fig. 4, a flow diagram of a single-deck rail metering method provided in the embodiment of the present invention is specifically a flow diagram of determining a vehicle type of the tank truck according to a moving speed of the tank truck and a second time interval. The step S400 includes:
step S401: obtaining the distance between the wheels of the first wheel shaft and the wheels of the second wheel shaft according to the second time interval and the moving speed of the tank car;
the second time interval obtained in step S300 is counted as T2, the moving speed of the tank car calculated in step S200 is calculated as V, and the second time interval T2 is the time when the distance between the wheels of the first axle and the wheels of the second axle passes through the same position (the first group of sensors) at the same moving speed, so that the distance between the wheels of the first axle and the wheels of the second axle is obtained according to the second time interval T2 and the moving speed V of the tank car and is recorded as L, and then the distance L between the wheels of the first axle and the wheels of the second axle is L × T2.
Step S402: judging whether the distance between the wheels of the first wheel shaft and the wheels of the second wheel shaft is equal to the distance between the wheels of the wheel shaft of a preset vehicle type or not;
after the distance L between the first wheel axle wheel and the second wheel axle wheel is obtained, comparing the distance L between the first wheel axle wheel and the second wheel axle wheel with the distance between the first wheel axle wheel and the second wheel axle wheel of a tank car of a preset vehicle type, and judging whether the distance L between the first wheel axle wheel and the second wheel axle wheel is equal to the distance between the first wheel axle wheel and the second wheel axle wheel of the preset vehicle type or not;
the preset vehicle type can include multiple vehicle types, such as a first preset vehicle type, a second preset vehicle type and a third preset vehicle type, and the distances between the first wheel axle wheel and the second wheel axle wheel of the first preset vehicle type, the second preset vehicle type and the third preset vehicle type are preset distances, so that whether the distance L between the first wheel axle wheel and the second wheel axle wheel is equal to the preset distance between two wheel axle wheels of the first preset vehicle type, the second preset vehicle type or the third preset vehicle type is judged, and the vehicle type of the tank car to be measured is obtained.
Step S403: obtaining the vehicle type of the tank car when the distance between the wheels of the first wheel shaft and the wheels of the second wheel shaft is equal to the distance between the wheels of the wheel shaft of a preset vehicle type;
comparing the distance between the two wheel shafts and wheels of the existing first preset vehicle type, second preset vehicle type and third preset vehicle type in the step S402 to obtain the vehicle type of the tank car;
if the distance L between the wheels of the first wheel axle and the wheels of the second wheel axle is equal to the distance between the wheels of the two wheel axles of the first preset vehicle type, the second preset vehicle type or the third preset vehicle type, the first preset vehicle type, the second preset vehicle type or the third preset vehicle type is correspondingly obtained, and the weight of the tank car can be further obtained;
and if the distance L between the first wheel axle wheel and the second wheel axle wheel is not equal to the distance between two wheel axle wheels of any one of the first preset vehicle type, the second preset vehicle type or the third preset vehicle type, the calculated distance L between the first wheel axle wheel and the second wheel axle wheel is the distance between adjacent wheel axle wheels between the previous tank car and the next tank car in the whole vehicle set, so that the vehicle type of the tank car is judged according to the distance L between the first wheel axle wheel and the second wheel axle wheel calculated in the next period.
It should be noted that, in the single platform track scale metering method of this embodiment, the first preset vehicle type, the second preset vehicle type, and the third preset vehicle type are all vehicle types of the existing tank car, so that the metered vehicle type of the tank car is obtained according to the comparison between the calculated distance L between the wheel of the first wheel axle and the wheel of the second wheel axle and the vehicle type of the existing tank car; the distance between the wheels of the first wheel axle and the wheels of the second wheel axle in the first preset vehicle type, the second preset vehicle type or the third preset vehicle type, the number of the wheel axles and the like are measured in advance.
Step S500: acquiring the weight of each wheel axle wheel corresponding to the tank car when the tank car passes through the single platform surface railroad track scale;
when the first wheel axle wheel of the tank car passes through the table top of the bearing table of the single-table-surface railroad track scale, the length of the tank car is possibly greater than that of the bearing table of the single-table-surface railroad track scale, so that the weight of the whole tank car cannot be directly measured, but only one set of wheels is arranged on the table top of the bearing table after the first wheel axle wheel of the tank car is positioned behind the table top of the bearing table and before the second wheel axle wheel (the wheel axle wheel adjacent to the first wheel axle wheel) reaches the table top of the bearing table, so that the weight of the first wheel axle wheel can be obtained through a weighing converter; when the second wheel axle wheel is positioned behind the table board of the bearing table and the third wheel axle wheel (the wheel axle wheel adjacent to the second wheel axle wheel) reaches the table board of the bearing table, if two groups of wheels are arranged on the table board of the bearing table, the weights of the first wheel axle wheel and the second wheel axle wheel can be obtained through the weighing converter, and the weight of the second wheel axle wheel can be obtained by subtracting the weight of the first wheel axle wheel from the weights of the two groups of wheels; if only one set of wheels (namely the wheels of the second wheel axle) is arranged on the table top of the bearing table, the weight of the wheels of the second wheel axle can be directly obtained through the weighing converter; the weight of each wheel shaft and each wheel can be obtained by analogy in sequence; and according to the model of the tank car determined in step S400, adding the weights of the wheels on the axles (e.g., the wheels on the first axle and the wheels on the second axle) corresponding to the tank car to obtain the weight of each tank car. In the actual use process, the moment when the wheels on the platform surface of the bearing platform are the most is selected, the known weight of the wheels leaving the platform surface of the bearing platform is added, and therefore the actual weight of the tank car is obtained.
Step S600: obtaining the weight of the tank car according to the type of the tank car and the weight of each wheel axle wheel corresponding to the tank car;
in step S400, the model of the tank car can be obtained according to the moving speed of the tank car and the second time interval, and then the number of axles of the tank car is obtained according to the model of the tank car, so that the weight of the tank car is obtained according to the number of axles of the tank car and the measured weight of the wheel of the first axle.
Referring to fig. 5, a schematic flow chart of another single-deck rail weighbridge measuring method according to the embodiment of the present invention, specifically a schematic flow chart of calculating the weight of the tank car, where step S600 includes:
step S601: acquiring the number of wheel shafts of the tank car according to the type of the tank car;
the vehicle type of the tank car is obtained in the step S400, so that the number of the wheel shafts of the tank car can be correspondingly obtained according to the number of the wheel shafts of the preset vehicle type; and the weight of the tank car is obtained through the number of the wheel shafts and the weight of each wheel of the wheel shafts.
Step S602: obtaining the weight of the tank car according to the number of the wheel shafts and the weight of each wheel shaft wheel corresponding to the wheel shafts, wherein the weight of the tank car is the sum of the weights of each wheel shaft wheel corresponding to the tank car;
the number of the axles of the tank car is recorded as n (n is greater than or equal to 2) according to the step S601, and the weight of each axle wheel obtained in the step S500 is recorded as GnAccording to the number n of the wheel shafts of the tank car and the weight G of each wheel shaft wheelnThe weight of the tank car is obtained as sigma Gn(ii) a For example, the weight of a plurality of wheels of a wheel axle is obtained by a weighing converter arranged at the lower end of the table top of the bearing table, such as G1、G2、G3、G4、G5Respectively corresponding to the weights of the wheels of the first wheel shaft, the wheels of the second wheel shaft, the wheels of the third wheel shaft, the wheels of the fourth wheel shaft and the wheels of the fifth wheel shaft from the beginning of the first wheel shaft passing through the single platform rail weighbridge, wherein if the step S400 shows that the model of the first tank car corresponds to the wheels of the two wheel shafts, the weight of the first tank car is G1+G2If the model of the second tank car (the tank car adjacent to the first tank car in the tank car traveling direction) corresponds to three wheel-axle wheels, the weight of the second tank car is G3+G4+G5(ii) a The first tank car and the second tank car are adjacent and connected to form a train set.
It should be noted that in the method for calculating the single platform rail weighbridge metering, the calculated weights of the tank cars are the weights of the single tank cars in the whole train set, and the weight of the whole train set can be calculated as the weight of each tank car, and the weight of the whole train set is the sum of the weights of the tank cars. The implementation mode is that the steps S100 to S600 are repeated, the weight of a single tank car is calculated, and then the weights of the tank cars calculated each time are added, so that the weight of the whole train set can be obtained.
Step S700: acquiring the weight of each tank car, and calculating to obtain the weight of the whole train set;
in the implementation process, the step S700 further includes repeating the steps S100 to S600 to calculate the weight of each tank car in the train set, and further obtain the weight of the whole train set, where the weight of the whole train set is the sum of the weights of each tank car; the weight of each tank car in the whole train set can be obtained through the steps S100 to S600, taking the example that the whole train set comprises four tank cars and the types of the tank cars are different, the weight of the first tank car of the whole train set is obtained through the steps S100 to S600, the weights of the second tank car, the third tank car and the fourth tank car are obtained sequentially through the steps S100 to S600, and the weight of the first tank car, the weight of the second tank car, the weight of the third tank car and the weight of the fourth tank car are added, namely the weight of the train set.
Through the above description of the method embodiments, those skilled in the art can clearly understand that the present invention can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: various media that can store program codes, such as Read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and so on.
Corresponding to the embodiment of the single-platform rail weighbridge measuring method provided by the invention, the invention also provides a single-platform rail weighbridge measuring system (the weighing converter 20 and the display device are not labeled in the drawing).
Referring to fig. 6, a schematic structural diagram of a single-platform railroad track scale metering system provided in an embodiment of the present invention is shown, where the single-platform railroad track scale metering system includes: the weight-bearing platform comprises a bearing platform 10, a sensor, a weighing converter 20 and a display device, wherein the sensor is arranged at the lower end of the bearing platform 10, is used for sensing the weight of the bearing platform 10 and is used for converting weight information of a tank truck when passing through into an electric signal and sending the electric signal into the weighing converter 20; the load cell 20 is connected to the sensor and the display device, respectively, and is configured to receive weight information of the first wheel axle wheel of the tank car measured by the sensor and the timing time of the timer or the timing circuit connected to the sensor through the load cell 20, obtain the weight of the first wheel axle wheel passing through the sensor through the weight information received by the load cell 20, and display the weight of the tank car through the display device.
Wherein the sensors comprise at least two groups of sensors: a first group of sensors 11 and a second group of sensors 12, wherein the first group of sensors 11 and the second group of sensors 12 are respectively arranged on two sides of the bearing table 10, so that the distance between the first group of sensors 11 and the second group of sensors 12 is approximately equal to the length of the table top of the bearing table 10; the first and second sets of sensors 11 and 12, respectively, are connected to the load cell 20.
Fig. 7 is a schematic structural diagram of another single-deck rail weighbridge metering system according to an embodiment of the present invention, specifically a schematic structural diagram of the load cell.
As shown in the figure, the load cell 20 includes a CPU module 21, an I/O interface circuit 22, a comparator circuit 23, a storage circuit 24 and a timing circuit 25, the CPU module 21 is connected to the I/O interface circuit 22, the comparator circuit 23, the storage circuit 24 and the timing circuit 25, respectively, so that the load cell 20 receives information of the timing circuit 25, the sensor and the comparator circuit 23 through the CPU module, respectively, to calculate the moving speed of the tank car and the type of the tank car and the weight of the tank car. Wherein,
the I/O interface circuit 22 is used for connecting the CPU module 21 to the first group of sensors 11, the second group of sensors 12, the timing circuit 25 and the display device, so that the CPU module 21 receives the first timing time, the second timing time and the information (such as the number of axles of the preset vehicle type, the distance between two wheels of an axle of the preset vehicle type, etc.) corresponding to the preset vehicle type of the tank car and stored in the storage circuit 24 through the first group of sensors 11, the second group of sensors 12 and the timing circuit 25, thereby calculating the weight of the tank car, further calculating the weight of the whole vehicle group, and displaying the weight of the tank car and the weight of the whole vehicle group through the display device.
The comparator circuit 23 compares the distance L between the first wheel axle wheel and the second wheel axle wheel of the tank car calculated by the CPU module with the distance between the wheel axle wheels of a preset car type, and determines the car type of the tank car.
The timing circuit 25 includes at least two timing circuits: a first timing circuit and a second timing circuit, wherein the first timing circuit is respectively connected with the first group of sensors 11 and the second group of sensors 12, so that the timing is started when the first group of sensors 11 sense the passing of the first wheel axle wheel, the timing is stopped when the second group of sensors 12 sense the passing of the first wheel axle wheel, a first timing time is obtained, and the first timing time is sent to the CPU module 21; the second timing circuit is connected to the first set of sensors 11 or the second set of sensors 12, so as to start timing when the first set of sensors 11 sense that the first wheel passes through, stop timing when the second wheel passes through the first set of sensors 11, obtain a second timing time, and send the second timing time to the CPU module.
It should be noted that the second timer is not limited to be connected to the first set of sensors 11, and may also be connected to the second set of sensors 12, so that the second set of sensors 12 and the second timer measure the second timing time when the adjacent wheel passes by; the first and second sets of sensors 11 and 12 may each include at least two sensors, and the two sensors of the first and second sets of sensors 11 and 12 may be co-linear below the load bearing platform 10 to facilitate simultaneous sensing by the two sensors as a tank truck passes by the load bearing platform 10. The display device may be provided as a computer or the like having a display function, the sensor being connected to a load cell which may be connected to the computer via a data interface or the like, such that the computer receives the output signal of the sensor received by the load cell, and the weight of the wheel of the single wheel axle is derived and displayed by the computer.
The single platform rail weighbridge metering system provided by the embodiment is adopted, and the weighing converter, the bearing platform, the sensor and the display device are arranged, so that when a tank car passes through the bearing platform, the time can be measured through the sensor and the timer or the timing circuit connected with the sensor, the time interval of the same wheel axle wheel passing through different sensors and the time interval of the different wheel axle wheels passing through the same sensor are respectively calculated, the type of the tank car is obtained, the sensor information of the sensor when the tank car passes through is sent to the weighing converter, the weight of one wheel axle wheel passing through is directly obtained through the CPU module of the weighing converter according to the received weight information (the change of the output signal of the sensor), and the weight of the tank car and the weight of the whole car group are further obtained. Therefore, the problem that the vehicle cannot be metered for a long time when old track lines, basic track laying, concrete pouring and the like are disassembled in the process of reconstructing the track scale is avoided, and the metering cost is effectively reduced.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for apparatus or system embodiments, since they are substantially similar to method embodiments, they are described in relative terms, as long as they are described in partial descriptions of method embodiments. The above-described embodiments of the apparatus and system are merely illustrative, and the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A single-platform rail weighbridge metering method is characterized by comprising the following steps:
acquiring a first time interval when a first wheel of a first wheel shaft of the tank car passes through a first group of sensors and a second group of sensors;
obtaining the moving speed of the tank car according to the first time interval and the distance between the first group of sensors and the second group of sensors;
acquiring a second time interval of the first wheel shaft wheel and the second wheel shaft wheel of the tank car passing through the first group of sensors;
judging the vehicle type of the tank car according to the moving speed of the tank car and the second time interval;
acquiring the weight of each wheel axle wheel corresponding to the tank car when the tank car passes through a single platform surface railroad track scale;
obtaining the weight of the tank car according to the type of the tank car and the weight of each wheel axle wheel corresponding to the tank car;
the weight of each tanker is obtained and the weight of the entire consist is calculated.
2. The single-platform rail weighbridge metering method of claim 1, wherein the first group of sensors and the second group of sensors are respectively arranged at the lower end of a bearing platform of the single-platform rail weighbridge; wherein,
the distance between the first group of sensors and the second group of sensors is smaller than or equal to the length of the table top of the bearing table.
3. The single deck rail weighbridge metering method of claim 1, wherein said acquiring a time interval between a first axle wheel of the tanker passing a first set of sensors and a second set of sensors comprises:
initiating timing when the first axle wheel passes the first set of sensors;
when the first wheel shaft wheel passes through the second group of sensors, stopping timing to obtain timing time, wherein the timing time is equal to the first timing time;
the first timing time is the first time interval.
4. The single deck rail weighbridge method of claim 1, wherein said obtaining a second time interval for the first and second axle wheels of the tanker to pass the first set of sensors comprises:
initiating timing when the first axle wheel passes the first set of sensors;
stopping timing when a second wheel axle wheel of the tank car passes through the first group of sensors to obtain timing time, wherein the timing time is equal to second timing time;
the second timing time is the second time interval.
5. The single deck rail weighbridge metering method of claim 1, wherein the judging the model of the tank car according to the moving speed of the tank car and the second time interval comprises:
obtaining the distance between the wheels of the first wheel shaft and the wheels of the second wheel shaft according to the second time interval and the moving speed of the tank car;
judging whether the distance between the wheels of the first wheel shaft and the wheels of the second wheel shaft is equal to the distance between the wheels of the wheel shaft of a preset vehicle type or not;
and obtaining the vehicle type of the tank car when the distance between the wheels of the first wheel shaft and the wheels of the second wheel shaft is equal to the distance between the wheels of the wheel shafts of the preset vehicle type.
6. The single deck rail weighbridge metering method of claim 1, wherein the step of deriving the weight of the tank car from the type of the tank car and the weight of each wheel of the axle corresponding to the tank car comprises:
acquiring the number of wheel shafts of the tank car according to the type of the tank car;
and obtaining the weight of the tank car according to the number of the wheel shafts and the weight of each wheel shaft wheel corresponding to the wheel shafts, wherein the weight of the tank car is the sum of the weights of each wheel shaft wheel corresponding to the tank car.
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| CN201510012445.6A CN104596628B (en) | 2015-01-09 | 2015-01-09 | Single table surface track scale metering method and metering system |
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| CN201510012445.6A CN104596628B (en) | 2015-01-09 | 2015-01-09 | Single table surface track scale metering method and metering system |
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| DE202012012793U1 (en) * | 2012-06-30 | 2014-01-23 | Franz Kaminski Waggonbau Gmbh | Device for measuring and displaying the loading weight of a rail vehicle |
| CN203203675U (en) * | 2013-04-19 | 2013-09-18 | 武汉钢铁(集团)公司 | Control device suitable for dynamic railroad track scale weighing system |
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