CN111896167B - Wind pressure calibration method and device - Google Patents
Wind pressure calibration method and device Download PDFInfo
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Abstract
The embodiment of the invention discloses a wind pressure calibration method and a device, wherein the wind pressure calibration method comprises the following steps: when a wind pressure calibration command is received, acquiring an air wind pressure value of a current train tail host machine detection platform to be calibrated and collecting a wind pressure value of a current train tail host machine wind pipe to be calibrated; and determining a target calibration value based on the air wind pressure value, and calibrating the wind pressure value of the train tail host machine to be calibrated currently based on the target calibration value to obtain the wind pressure value of the train tail host machine to be calibrated currently. The invention can improve the accuracy of wind pressure calibration.
Description
Technical Field
The invention relates to the technical field of safety protection, in particular to a wind pressure calibration method and device.
Background
With the continuous development of rail transport technology, more and more passengers select rail vehicle trains to travel. In order to meet the travel requirements of passengers, the speed of the train is increased for many times, and meanwhile, the risk of brake failure of the train is also increased.
At present, the train tail safety protection device (hereinafter, referred to as a passenger train tail device) is generally installed at the tail of the train for safety protection. The train tail device can be connected with a train air pipe and is communicated with an LBJ (train protection alarm device) arranged at the head of the train, and the train is subjected to auxiliary exhaust braking by returning the air pressure information at the tail of the train. Specifically, before the passenger train tail device works, the passenger train tail device detection platform equipment is required to detect the accuracy of the communication functions of the passenger train tail device such as wind pressure query and air exhaust and the accuracy of wind pressure, a calibration value is selected in advance from the effective wind pressure range of the passenger train tail device to calibrate the wind pressure of the passenger train tail device, and the passenger train tail device detects the wind pressure through the pressure sensor.
In the prior art, when wind pressure calibration is carried out, once a pressure sensor is abnormal, the wind pressure detected by a passenger train tail device is abnormal, and the accuracy of the wind pressure calibration is low, so that the risk is high during the running of a train, and the safety of the train is low.
Disclosure of Invention
Due to the technical problems, the embodiment of the invention provides a wind pressure calibration method and a wind pressure calibration device.
In a first aspect, an embodiment of the present invention provides a wind pressure calibration method, including:
when a wind pressure calibration command is received, acquiring an air wind pressure value of a current train tail host machine detection platform to be calibrated and collecting a wind pressure value of a current train tail host machine wind pipe to be calibrated;
and determining a target calibration value based on the air wind pressure value, and calibrating the wind pressure value of the train tail host machine to be calibrated currently based on the target calibration value to obtain the wind pressure value of the train tail host machine to be calibrated currently.
Optionally, obtain the air wind pressure value that waits to calibrate at present and train the tail host computer and examine the platform and gather the wind pressure value of waiting to calibrate at present and being listed as the tail host computer tuber pipe includes:
acquiring a target train tail host identifier carried in the wind pressure calibration command, and determining whether the current train tail host is the train tail host corresponding to the wind pressure calibration command or not based on the target train tail host identifier;
and if the current train tail host is the train tail host corresponding to the wind pressure calibration command, determining the current train tail host as the train tail host to be calibrated currently, acquiring an air wind pressure value of the train tail host to be calibrated currently on a detection platform and collecting a wind pressure value of a train tail host to be calibrated currently.
Optionally, gather the wind pressure value of the current tail host computer tuber pipe of waiting to calibrate, include:
and carrying out a preset number of times of wind pressure AD sampling on the wind pressure value of the train tail host air pipe to be calibrated at present, and converting the preset number of wind pressure AD sampling values into the wind pressure value of the train tail host air pipe to be calibrated at present.
Optionally, the determining a target calibration value based on the air wind pressure value includes:
judging whether the air wind pressure value is larger than a first minimum preset air wind pressure value and smaller than or equal to a first maximum preset air wind pressure value or not;
if the air wind pressure value is larger than a first minimum preset air wind pressure value and smaller than or equal to a first maximum preset air wind pressure value, accurately calibrating a first preset calibration standard to be a first target calibration value;
and if the air wind pressure value is greater than the first maximum preset air wind pressure value, accurately setting a second preset calibration standard as a second target calibration value.
Optionally, the calibrating the wind pressure value of the train tail host air pipe to be currently calibrated based on the target calibration value to obtain the wind pressure value of the train tail host to be currently calibrated includes:
judging whether the wind pressure value of the current train tail host to be calibrated is larger than a first minimum preset train tail host wind pressure value and smaller than or equal to a first maximum preset train tail host wind pressure value;
if the wind pressure value of the train tail host air pipe to be calibrated currently is larger than the first minimum preset train tail host wind pressure value and is smaller than or equal to the first maximum preset train tail host wind pressure value, calibrating the wind pressure value of the train tail host air pipe to be calibrated currently based on the first target calibration value to obtain the wind pressure value of the train tail host to be calibrated currently;
and if the wind pressure value of the train tail host air pipe to be currently calibrated is larger than the first maximum preset train tail host wind pressure value, calibrating the wind pressure value of the train tail host air pipe to be currently calibrated based on the second target calibration value to obtain the wind pressure value of the train tail host to be currently calibrated.
Optionally, the wind pressure calibration method further includes:
when a wind pressure query command is received, detecting a first current train tail host air pipe wind pressure value of a train tail host air pipe to be calibrated currently, and acquiring a latest historical train tail host air pipe wind pressure value acquired before the first current train tail host air pipe wind pressure value;
determining whether the absolute value of the difference value between the air pressure value of the first current train tail main engine air pipe and the last historical train tail main engine air pipe air pressure value is less than or equal to a preset maximum allowable difference value;
if the absolute value of the difference is smaller than or equal to a preset maximum allowable difference, determining the air pressure value of the first current train tail host air pipe as the air pressure value of the current train tail host air pipe to be calibrated;
and if the absolute value of the difference is larger than the preset maximum allowable difference, re-detecting the second current train tail main machine air pipe wind pressure value of the train tail main machine air pipe to be calibrated currently.
Optionally, after re-detecting the second current train of tail host air pipe wind pressure value of the current train of tail host air pipe to be calibrated, the method further comprises:
if the air pressure value of the first current train tail host air pipe is smaller than the last historical train tail host air pipe air pressure value and larger than a second current train tail host air pipe air pressure value, determining the air pressure value of the first current train tail host air pipe as the air pressure value of the current train tail host air pipe to be calibrated;
if the air pressure value of the first current train tail host air pipe is greater than the last historical train tail host air pipe air pressure value and less than a second current train tail host air pipe air pressure value, determining the first current train tail host air pipe air pressure value as the air pressure value of the current train tail host air pipe to be calibrated;
and otherwise, determining the wind pressure value of the second current train tail main machine wind pipe as the wind pressure value of the current train tail main machine wind pipe to be calibrated.
In a second aspect, an embodiment of the present invention further provides a wind pressure calibration apparatus, including a wind pressure value obtaining module and a wind pressure value calibration module, where:
the wind pressure value acquisition module is used for acquiring the air wind pressure value of the train tail host detection table to be calibrated currently and acquiring the wind pressure value of the train tail host air pipe to be calibrated currently when a wind pressure calibration command is received;
and the wind pressure value calibration module is used for determining a target calibration value based on the air wind pressure value and calibrating the wind pressure value of the train tail host machine to be currently calibrated based on the target calibration value to obtain the wind pressure value of the train tail host machine to be currently calibrated.
In a third aspect, an embodiment of the present invention further provides an electronic device, including:
at least one processor; and
at least one memory communicatively coupled to the processor, wherein:
the memory stores program instructions executable by the processor, which when called by the processor are capable of performing the above-described methods.
In a fourth aspect, an embodiment of the present invention further provides a non-transitory computer-readable storage medium storing a computer program, which causes the computer to execute the above method.
According to the technical scheme, the air pressure value of the train tail host machine detection platform to be calibrated currently is obtained, the air pressure value of the train tail host machine air pipe to be calibrated currently is collected, the target calibration value corresponding to the air pressure value is determined, and the air pressure value of the train tail host machine air pipe to be calibrated currently is calibrated based on the target calibration value to obtain the air pressure value of the train tail host machine to be calibrated currently. Therefore, on one hand, compared with the wind pressure calibration according to the preselected fixed calibration value, different air wind pressure values may correspond to different target calibration values in the embodiment of the invention, and different target calibration values can be adopted to calibrate the wind pressure value of the train tail host according to different air wind pressure values, so that the problem of low accuracy of the wind pressure calibration caused by low linearity of the pressure sensor acquisition can be avoided, the accuracy of the wind pressure value of the train tail host after calibration can be effectively improved, and the accuracy of the wind pressure calibration can be improved. On the other hand, when the pressure sensor is abnormal, different target calibration values are adopted to calibrate the train tail main engine wind pressure value according to different air wind pressure values, and the stability and the accuracy of the calibrated train tail main engine wind pressure value can be effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic flow chart of a wind pressure calibration method according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a wind pressure calibration method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a wind pressure calibration device according to an embodiment of the present invention;
fig. 4 is a logic block diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Fig. 1 shows a schematic flow chart of a wind pressure calibration method provided in this embodiment, including:
s101, when a wind pressure calibration command is received, acquiring an air wind pressure value of a train tail host detection table to be calibrated currently and collecting a wind pressure value of a train tail host air pipe to be calibrated currently.
And the current train tail host to be calibrated refers to the train tail host corresponding to the wind pressure calibration command.
In implementation, when receiving a wind pressure calibration command, a train tail safety protection device (hereinafter referred to as a train tail device) may determine a train tail host to be calibrated currently corresponding to the wind pressure calibration command. Then, the train tail device may obtain an air Wind pressure value (which may be denoted as Wind _ JZ) of the train tail host inspection station to be calibrated currently in real time, and may further set a Wind pressure calibration Flag (which may be denoted as FYJZ _ Flag) when obtaining the air Wind pressure value Wind _ JZ, where FYJZ _ Flag is equal to 1. And the wind pressure value of the train tail host air pipe to be calibrated currently can be acquired in real time, for example, the wind pressure value can be acquired through a wind pressure acquisition unit (such as a pressure sensor).
S102, determining a target calibration value based on the air wind pressure value, and calibrating the wind pressure value of the train tail main engine to be calibrated currently based on the target calibration value to obtain the wind pressure value of the train tail main engine to be calibrated currently.
And the target calibration value refers to a calibration value which corresponds to the air wind pressure value and is used for calibrating the wind pressure value of the train tail main engine air pipe.
The wind pressure value of the train tail host to be calibrated currently refers to a wind pressure value obtained after the wind pressure value of the train tail host to be calibrated currently is calibrated based on the target calibration value, and the wind pressure value of the train tail host to be calibrated currently can be regarded as an actual wind pressure value of the train tail host to be calibrated currently.
In implementation, after obtaining the air wind pressure value of the train tail host machine detection table to be calibrated currently and the wind pressure value of the train tail host machine air pipe to be calibrated currently, the target calibration value may be determined based on the air wind pressure value of the train tail host machine detection table to be calibrated currently. Then, the wind pressure value of the air pipe of the train tail host to be calibrated currently can be calibrated based on the target calibration value, the wind pressure value of the train tail host to be calibrated currently is obtained, and the wind pressure value of the train tail host to be calibrated currently is output.
According to the technical scheme, the air pressure value of the train tail host machine detection platform to be calibrated currently is obtained, the air pressure value of the train tail host machine air pipe to be calibrated currently is collected, the target calibration value corresponding to the air pressure value is determined, and the air pressure value of the train tail host machine air pipe to be calibrated currently is calibrated based on the target calibration value to obtain the air pressure value of the train tail host machine to be calibrated currently. Therefore, on one hand, compared with the wind pressure calibration according to the preselected fixed calibration value, different air wind pressure values may correspond to different target calibration values, and different target calibration values can be adopted to calibrate the wind pressure value of the train tail host according to different air wind pressure values, so that the problem of low accuracy of the wind pressure calibration caused by low linearity of the pressure sensor acquisition can be solved, and the accuracy of the wind pressure value of the train tail host after calibration can be effectively improved. On the other hand, when the pressure sensor is abnormal, different target calibration values are adopted to calibrate the train tail main engine wind pressure value according to different air wind pressure values, and the stability and the accuracy of the calibrated train tail main engine wind pressure value can be effectively improved.
Further, on the basis of the above method embodiment, a current train tail host to be calibrated may be determined according to the train tail host identifier, and a corresponding part of the processing of step S101 may be as follows: acquiring a target train tail host identifier carried in the wind pressure calibration command, and determining whether the current train tail host is the train tail host corresponding to the wind pressure calibration command or not based on the target train tail host identifier; and if the current train tail host is the train tail host corresponding to the wind pressure calibration command, determining the current train tail host as the train tail host to be calibrated currently, acquiring the air wind pressure value of the train tail host detection platform to be calibrated currently and acquiring the wind pressure value of the train tail host wind pipe to be calibrated currently.
The target train tail host identifier refers to a train tail host identifier of a current train tail host to be calibrated, which is connected to a train tail where the current train tail device is located, and may be unique identification information such as a train number and a train number of the target train tail host to be calibrated.
The current train tail host refers to a train tail host connected with a train tail where the current train tail device is located.
In implementation, the wind pressure calibration command may carry a target train tail host identifier of a target train tail host to be calibrated. Therefore, after the wind pressure calibration command is received, the target train tail host identifier carried in the wind pressure calibration command can be obtained, and whether the current train tail host is the train tail host corresponding to the wind pressure calibration command or not can be determined based on the target train tail host identifier, for example, whether the train tail host identifier of the current train tail host is the same as the target train tail host identifier or not can be determined. If the current train tail host is the train tail host corresponding to the wind pressure calibration command, namely the train tail host identifier of the current train tail host is the same as the target train tail host identifier, the current train tail host can be determined to be the train tail host to be calibrated currently, and the current train tail host is determined to be the train tail host to be calibrated currently. Then, the air wind pressure value of the train tail host machine detection table to be calibrated currently can be obtained, and the wind pressure value of the train tail host machine air pipe to be calibrated currently is collected. And if the current train tail host is not the train tail host corresponding to the wind pressure calibration command, the wind pressure calibration process is not executed. Therefore, whether the current train tail host is the current train tail host to be calibrated or not is determined firstly, and the wind pressure calibration is executed only when the current train tail host is the current train tail host to be calibrated, so that the wind pressure calibration accuracy can be improved, and meanwhile, unnecessary resource consumption is avoided to a certain extent.
Further, on the basis of the above method embodiment, the wind pressure value of the train tail main engine air duct to be calibrated currently may be collected through multiple sampling, and the corresponding partial processing of step S101 may be as follows: and carrying out a preset number of times of wind pressure AD sampling on the wind pressure value of the train tail host air pipe to be calibrated currently, and converting the preset number of wind pressure AD sampling values into the wind pressure value of the train tail host air pipe to be calibrated currently.
The preset number refers to the number of times of AD sampling, and may be 100 times, for example.
In the implementation, when the wind pressure value of the train tail main engine wind pipe to be calibrated currently is carried out, a preset number of times of AD sampling, such as 100 times of AD sampling, can be continuously carried out. Then, the maximum value and the minimum value in the preset number of AD sampling values can be removed, the middle value in all the remaining AD sampling values is taken as an effective AD sampling value, and the effective AD sampling value is converted to obtain the wind pressure value of the train tail host air pipe to be calibrated currently.
Further, on the basis of the above method embodiment, different target calibration values may be determined according to different ranges of air wind pressure values, and the corresponding part of the processing of step S102 may be as follows: judging whether the air wind pressure value is larger than a first minimum preset air wind pressure value and smaller than or equal to a first maximum preset air wind pressure value or not; if the air wind pressure value is larger than the first minimum preset air wind pressure value and smaller than or equal to the first maximum preset air wind pressure value, accurately calibrating the first preset calibration value as a first target calibration value; and if the air wind pressure value is greater than the first maximum preset air wind pressure value, accurately setting the second preset calibration standard as a second target calibration value.
The first minimum preset air wind pressure value and the first maximum preset air wind pressure value respectively refer to the range of air wind pressure values corresponding to a preset first preset calibration standard, and if the first minimum preset air wind pressure value can be 0kpa, the first maximum preset air wind pressure value can be 550 kpa. That is, when the acquired air wind pressure value of the train to be calibrated currently is within the range (the first minimum preset air wind pressure value, the first maximum preset air wind pressure value), such as (0kpa, 550kpa), the corresponding target calibration value is the first preset calibration standard (such as 500 kpa).
The second preset calibration standard refers to a calibration standard corresponding to the case that the air wind pressure value of the train to be calibrated currently is greater than the first maximum preset air wind pressure value (for example, greater than 550 kpa). That is, when the acquired air wind pressure value of the train to be calibrated currently is greater than the first maximum preset air wind pressure value (for example, 550kpa), the corresponding target calibration value is the second preset calibration standard (for example, 600 kpa).
The first target calibration value refers to a first preset calibration standard, and the second target calibration value refers to a second preset calibration standard, wherein the first and the second are only used for distinguishing different target calibration values.
In implementation, when determining the target calibration value, first, it may be determined whether an air Wind pressure value (which may be denoted as Wind _ JZ) is greater than a first minimum preset air Wind pressure value (e.g., 0kpa) and less than or equal to a first maximum preset air Wind pressure value (e.g., 550kpa), i.e., whether 0kpa < Wind _ JZ ≦ 550kpa is true. If the air Wind pressure value is greater than the first minimum preset air Wind pressure value and less than or equal to the first maximum preset air Wind pressure value, that is, 0kpa < Wind _ JZ < 550kpa, the first preset calibration value may be accurately determined as the first target calibration value, for example, WindAdd 500. On the contrary, if the air Wind pressure value is greater than the first maximum preset air Wind pressure value, i.e. 550kpa < Wind _ JZ, the second preset calibration value may be accurately determined as the second target calibration value, e.g. WindAdd600, and the first/second target calibration values may be saved. Therefore, different target calibration values are determined according to different air wind pressure value ranges to calibrate the train tail host wind pressure value, and the stability and the accuracy of the wind pressure value of the train tail host after calibration can be further improved.
Further, on the basis of the above method embodiment, the calibration of the train tail host wind pressure value may be performed according to different target calibration values, and the corresponding part of the processing of step S102 may be as follows: judging whether the wind pressure value of the current train tail host to be calibrated is larger than a first minimum preset train tail host wind pressure value and smaller than or equal to a first maximum preset train tail host wind pressure value; if the wind pressure value of the current train tail host to be calibrated is larger than the first minimum preset train tail host wind pressure value and is smaller than or equal to the first maximum preset train tail host wind pressure value, calibrating the wind pressure value of the current train tail host to be calibrated based on the first target calibration value to obtain the wind pressure value of the current train tail host to be calibrated; and if the wind pressure value of the train tail host air pipe to be calibrated currently is larger than the first maximum preset train tail host wind pressure value, calibrating the wind pressure value of the train tail host air pipe to be calibrated currently based on the second target calibration value to obtain the wind pressure value of the train tail host to be calibrated currently.
The first minimum preset train tail host wind pressure value and the first maximum preset train tail host wind pressure value respectively refer to a preset train tail host wind pressure value range corresponding to the first target calibration value, and if the first minimum preset train tail host wind pressure value can be 0kpa, the first maximum preset train tail host wind pressure value can be 550 kpa. That is, when the obtained wind pressure value of the train tail host air pipe to be calibrated currently is within the range (the first minimum preset train tail host wind pressure value, the first maximum preset train tail host wind pressure value), such as (0kpa, 550kpa), the train tail host wind pressure value is calibrated based on the first target calibration value.
In the implementation, when calibrating the train tail main unit Wind pressure value (which may be denoted as Wind _ KLW), first, it may be determined whether the Wind pressure value of the train tail main unit Wind pipe to be calibrated currently is greater than a first minimum preset train tail main unit Wind pressure value and less than or equal to a first maximum preset train tail main unit Wind pressure value, that is, whether 0kpa < Wind _ KLW ≤ 550kpa is satisfied. If the Wind pressure value of the train tail host air pipe to be calibrated currently is greater than the first minimum preset train tail host Wind pressure value and is less than or equal to the first maximum preset train tail host Wind pressure value, that is, if 0kpa < Wind _ KLW ≤ 550kpa is satisfied, the Wind pressure value of the train tail host air pipe to be calibrated currently can be calibrated based on the first target calibration value to obtain the Wind pressure value of the train tail host to be calibrated currently, and the specific calibration method can be as follows: the Wind pressure value of the train tail host to be calibrated currently is Wind _ KLW ± WindAdd 500. On the contrary, if the air Wind pressure value is greater than the first maximum preset train tail host Wind pressure value, that is, if 550kpa < Wind _ KLW, the Wind pressure value of the train tail host Wind pipe to be calibrated currently can be calibrated based on the second target calibration value to obtain the Wind pressure value of the train tail host to be calibrated currently, and the specific calibration method may be: the Wind pressure value of the train tail host to be calibrated currently is Wind _ KLW ± WindAdd 600. After the wind pressure value of the train tail host to be calibrated is calibrated, wind pressure calibration response information can be generated and output based on the wind pressure value of the train tail host to be calibrated, and meanwhile, the wind pressure calibration flag bit can be cleared. Therefore, the wind pressure value of the train tail host is calibrated based on different target calibration values, and the stability and the accuracy of the wind pressure value of the train tail host to be calibrated at present can be further improved.
It is understood that the calibration symbol may be set to 1 or 0, and when the calibration symbol is 1, the Wind pressure value of the train tail host to be calibrated is windkew-WindAdd 600; when the calibration symbol is 0, the Wind pressure value of the train tail host to be calibrated is Wind _ KLW + WindAdd 600. The setting method of the calibration symbols comprises the following steps: if the Wind pressure value Wind _ KLW of the air pipe of the train tail host to be calibrated is greater than or equal to the air Wind pressure value Wind _ JZ, and the first target calibration value is Wind _ KLW-Wind _ JZ, the calibration symbol is 1; if the Wind pressure value Wind _ KLW of the train tail host air pipe to be calibrated currently is smaller than the air Wind pressure value Wind _ JZ, and the first target calibration value is Wind _ JZ-Wind _ KLW, the calibration symbol is 0; or if the Wind pressure value Wind _ KLW of the train tail host air pipe to be calibrated currently is greater than or equal to the air Wind pressure value Wind _ JZ, and the second target calibration value is Wind _ KLW-Wind _ JZ, the calibration symbol is 1; and if the Wind pressure value Wind _ KLW of the air pipe of the train tail host to be calibrated currently is smaller than the air Wind pressure value Wind _ JZ, and the second target calibration value is Wind _ KLW-Wind _ JZ, the calibration symbol is 0.
Referring to fig. 2, a complete flow chart provided by the embodiment of the present invention is shown by taking the first target calibration value as WindAdd500, the second target calibration value as WindAdd600, the target train tail host identifier as a locomotive number, and the preset number as 100 times as an example. And the first target calibration value WindAdd500 and the second target calibration value WindAdd600 in fig. 2 are valid within 50 kpa; in fig. 2, Sign500 and Sign600 represent calibration symbols, which are used to indicate that the wind pressure value of the train tail main engine wind pipe needs to be added or subtracted by a calibration value during wind pressure calibration, when the calibration symbol value is 0, the wind pressure value of the train tail main engine wind pipe is added by the calibration value, and when the calibration symbol value is 1, the wind pressure value of the train tail main engine wind pipe is subtracted by the calibration value. Specifically, the method comprises the following steps:
when a wind pressure calibration command is received, whether the train tail host identification of the current train tail host is the same as the locomotive number carried by the wind pressure calibration command is judged, and if not, the processing is finished. If the Wind pressure value is the same as the preset Wind pressure value, the set Wind pressure calibration Flag bit FYJZ _ Flag is 1, and the air Wind pressure value Wind _ JZ is obtained. And then, performing AD sampling for 100 times, removing the maximum value and the minimum value in 100 AD sampling values, taking the middle value in the remaining 98 AD sampling values as an effective AD sampling value, and converting the effective AD sampling value to obtain the Wind pressure value Wind _ KLW of the train tail host air pipe to be calibrated currently. Then, it can be determined whether Wind _ JZ satisfies 0kpa < Wind _ JZ ≦ 550 kpa. If the condition that 0kpa < Wind _ JZ is less than or equal to 550kpa is met, whether the Wind _ KLW meets the condition that the Wind _ KLW is more than or equal to Wind _ JZ is judged. If the Wind _ KLW is larger than or equal to the Wind _ JZ, the WindAdd500 is equal to the Wind _ KLW-Wind _ JZ, and the calibration symbol is 1; otherwise, WindAdd500 ═ Wind _ JZ-Wind _ KLW, the calibration symbol is 0; and when WindAdd500 is larger than 50kpa, calibrating the air pressure value of the air pipe of the train tail host to be calibrated currently based on WindAdd500 to obtain the air pressure value of the train tail host to be calibrated currently, setting WindAdd500 to be 0, and storing the air pressure value and the calibration symbol of the train tail host to be calibrated currently. If not, judging whether the Wind _ KLW is more than or equal to the Wind _ JZ or not, if not, judging whether the Wind _ KLW is more than or equal to the Wind _ JZ or not. If the Wind _ KLW is larger than or equal to the Wind _ JZ, WindAdd600 is equal to Wind _ KLW-Wind _ JZ, and the calibration symbol is 1; otherwise, WindAdd600 is Wind _ JZ-Wind _ KLW, and the calibration symbol is 0; and when the WindAdd600 is larger than 50kpa, calibrating the air pressure value of the air pipe of the train tail host to be calibrated currently based on the WindAdd500 to obtain the air pressure value of the train tail host to be calibrated currently, setting the WindAdd600 to be 0, and storing the air pressure value and the calibration symbol of the train tail host to be calibrated currently. Then, it is judged whether 0kpa < Wind _ KLW < 550kpa is satisfied. If 0kpa < Wind _ KLW < 550kpa holds, then it is determined whether Wind _ KLW is greater than or equal to WindAdd500 and sign bit 1 is calibrated. If the Wind _ KLW is greater than or equal to WindAdd500 and the calibration symbol is 1, then Wind _ KLW ═ WindAdd 500; if the calibration symbol is 0, then Wind _ KLW + ═ WindAdd 500. If Wind _ KLW > 650kpa, then Wind _ KLW ═ WindAdd 500. If 0kpa < Wind _ KLW < 550kpa does not hold, then a determination is made whether Wind _ KLW is greater than or equal to WindAdd600 and the sign bit 1 is calibrated. If the Wind _ KLW is greater than or equal to WindAdd600 and the calibration symbol is 1, then Wind _ KLW ═ WindAdd 600; if the calibration symbol is 0, then Wind _ KLW + ═ WindAdd 600. Then, if Wind _ KLW > 650kpa, Wind _ KLW ═ WindAdd 600. And if the Wind _ KLW is smaller than 50kpa, the Wind _ KLW is equal to 0, a Wind pressure calibration response message is sent, and the Wind pressure calibration flow is ended.
Further, on the basis of the above method embodiment, the method further includes the following processing: when a wind pressure query command is received, detecting a first current train tail host air pipe wind pressure value of a train tail host air pipe to be calibrated currently, and acquiring a latest historical train tail host air pipe wind pressure value acquired before the first current train tail host air pipe wind pressure value; determining whether the absolute value of the difference value between the air pressure value of the air pipe of the first current train tail main engine and the air pressure value of the air pipe of the last historical train tail main engine is less than or equal to a preset maximum allowable difference value or not; if the absolute value of the difference is smaller than or equal to the preset maximum allowable difference, determining the air pressure value of the first current train tail main machine air pipe as the air pressure value of the train tail main machine air pipe to be calibrated currently; and if the absolute value of the difference is larger than the preset maximum allowable difference, re-detecting the second current train tail main machine air pipe wind pressure value of the train tail main machine air pipe to be calibrated currently.
The first current train tail main machine air pipe air pressure value refers to a real-time air pressure value of a current train tail main machine air pipe to be calibrated, which is acquired when the air pressure query command is received at the current moment.
The preset maximum allowable difference value refers to a preset maximum allowable value of an absolute value of a difference value between the air pressure value of the first current train tail main air pipe and the air pressure value of the last historical train tail main air pipe, and can be 15kpa, for example.
And the second current air pressure value of the train tail main machine refers to the newly acquired air pressure value of the current train tail main machine air pipe to be calibrated when the absolute value of the difference between the first current air pressure value of the train tail main machine and the last historical air pressure value of the train tail main machine is greater than the preset maximum allowable difference.
In implementation, when a wind pressure query command is received, the wind pressure query command may be a manual wind pressure query command or an automatic wind pressure query command, a first current train tail host air pipe wind pressure value of a train tail host air pipe to be calibrated currently may be detected, and a last historical train tail host air pipe wind pressure value acquired before the first current train tail host air pipe wind pressure value may be acquired. Then, the absolute value of the difference between the first current air pressure value of the train tail main engine and the last historical air pressure value of the train tail main engine can be calculated, and whether the absolute value of the difference is smaller than or equal to the preset maximum allowable difference or not can be determined. And if the absolute value of the difference is less than or equal to the preset maximum allowable difference, determining the air pressure value of the first current train tail main machine air pipe as the air pressure value of the train tail main machine air pipe to be calibrated currently. And otherwise, if the absolute value of the difference is larger than the preset maximum allowable difference, re-detecting the second current train tail main machine air pipe wind pressure value of the train tail main machine air pipe to be calibrated currently. Therefore, whether the wind pressure value of the first current train tail main machine wind pipe is determined to be the current wind pressure value of the train tail main machine wind pipe to be calibrated or not is determined according to the difference value of the wind pressure value of the first current train tail main machine wind pipe and the last historical train tail main machine wind pipe, and the abnormal wind pressure caused by sudden change of wind pressure collection can be avoided, so that the accuracy of wind pressure calibration can be further improved.
Further, on the basis of the above method embodiment, the following processing may be performed: if the air pressure value of the first current train tail host air pipe is smaller than the last historical air pipe air pressure value of the train tail host and larger than the second current train tail host air pipe air pressure value, determining the air pressure value of the first current train tail host air pipe as the air pressure value of the train tail host air pipe to be calibrated currently; if the air pressure value of the first current train tail host air pipe is larger than the last historical train tail host air pipe air pressure value and smaller than the second current train tail host air pipe air pressure value, determining the first current train tail host air pipe air pressure value as the air pressure value of the train tail host air pipe to be calibrated currently; and otherwise, determining the air pressure value of the air pipe of the second current train tail main engine as the air pressure value of the air pipe of the train tail main engine to be calibrated currently. Therefore, the current wind pressure value of the train tail host air pipe to be calibrated is determined according to the magnitude relation among the first current train tail host air pipe wind pressure value, the last historical train tail host air pipe wind pressure value and the second current train tail host air pipe wind pressure value, and the accuracy of wind pressure calibration can be further improved.
Fig. 3 shows a wind pressure calibration apparatus provided in this embodiment, which includes a wind pressure value obtaining module 301 and a wind pressure value calibration module 302, where:
the wind pressure value acquisition module 301 is configured to, when a wind pressure calibration command is received, acquire an air wind pressure value of a train tail host detection table to be currently calibrated and acquire a wind pressure value of a train tail host air pipe to be currently calibrated;
the wind pressure value calibration module 302 is configured to determine a target calibration value based on the air wind pressure value, and calibrate the wind pressure value of the train tail main engine to be currently calibrated based on the target calibration value to obtain the wind pressure value of the train tail main engine to be currently calibrated.
Further, the wind pressure value obtaining module 301 is configured to:
acquiring a target train tail host identifier carried in the wind pressure calibration command, and determining whether the current train tail host is the train tail host corresponding to the wind pressure calibration command or not based on the target train tail host identifier;
and if the current train tail host is the train tail host corresponding to the wind pressure calibration command, determining the current train tail host as the train tail host to be calibrated currently, acquiring an air wind pressure value of the train tail host to be calibrated currently on a detection platform and collecting a wind pressure value of a train tail host to be calibrated currently.
Further, the wind pressure value obtaining module 301 is configured to:
and carrying out a preset number of times of wind pressure AD sampling on the wind pressure value of the train tail host air pipe to be calibrated at present, and converting the preset number of wind pressure AD sampling values into the wind pressure value of the train tail host air pipe to be calibrated at present.
Further, the wind pressure value calibration module 302 is configured to:
judging whether the air wind pressure value is larger than a first minimum preset air wind pressure value and smaller than or equal to a first maximum preset air wind pressure value or not;
if the air wind pressure value is larger than a first minimum preset air wind pressure value and smaller than or equal to a first maximum preset air wind pressure value, accurately calibrating a first preset calibration standard to be a first target calibration value;
and if the air wind pressure value is greater than the first maximum preset air wind pressure value, accurately setting a second preset calibration standard as a second target calibration value.
Further, the wind pressure value calibration module 302 is configured to:
judging whether the wind pressure value of the current train tail host to be calibrated is larger than a first minimum preset train tail host wind pressure value and smaller than or equal to a first maximum preset train tail host wind pressure value;
if the wind pressure value of the train tail host air pipe to be calibrated currently is larger than the first minimum preset train tail host wind pressure value and is smaller than or equal to the first maximum preset train tail host wind pressure value, calibrating the wind pressure value of the train tail host air pipe to be calibrated currently based on the first target calibration value to obtain the wind pressure value of the train tail host to be calibrated currently;
and if the wind pressure value of the train tail host air pipe to be currently calibrated is larger than the first maximum preset train tail host wind pressure value, calibrating the wind pressure value of the train tail host air pipe to be currently calibrated based on the second target calibration value to obtain the wind pressure value of the train tail host to be currently calibrated.
Further, the wind pressure value obtaining module 301 is configured to:
when a wind pressure query command is received, detecting a first current train tail host air pipe wind pressure value of a train tail host air pipe to be calibrated currently, and acquiring a latest historical train tail host air pipe wind pressure value acquired before the first current train tail host air pipe wind pressure value;
determining whether the absolute value of the difference value between the air pressure value of the first current train tail main engine air pipe and the last historical train tail main engine air pipe air pressure value is less than or equal to a preset maximum allowable difference value;
if the absolute value of the difference is smaller than or equal to a preset maximum allowable difference, determining the air pressure value of the first current train tail host air pipe as the air pressure value of the current train tail host air pipe to be calibrated;
and if the absolute value of the difference is larger than the preset maximum allowable difference, re-detecting the second current train tail main machine air pipe wind pressure value of the train tail main machine air pipe to be calibrated currently.
Further, the wind pressure value obtaining module 301 is configured to:
if the air pressure value of the first current train tail host air pipe is smaller than the last historical train tail host air pipe air pressure value and larger than a second current train tail host air pipe air pressure value, determining the air pressure value of the first current train tail host air pipe as the air pressure value of the current train tail host air pipe to be calibrated;
if the air pressure value of the first current train tail host air pipe is greater than the last historical train tail host air pipe air pressure value and less than a second current train tail host air pipe air pressure value, determining the first current train tail host air pipe air pressure value as the air pressure value of the current train tail host air pipe to be calibrated;
and otherwise, determining the wind pressure value of the second current train tail main machine wind pipe as the wind pressure value of the current train tail main machine wind pipe to be calibrated.
The wind pressure calibration device described in this embodiment can be used to implement the above method embodiments, and the principle and technical effect are similar, which are not described herein again.
Referring to fig. 4, the electronic device includes: a processor (processor)401, a memory (memory)402, and a bus 403;
wherein,
the processor 401 and the memory 402 complete communication with each other through the bus 403;
the processor 401 is configured to call program instructions in the memory 402 to perform the methods provided by the above-described method embodiments.
The present embodiments disclose a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the computer to perform the methods provided by the above-described method embodiments.
The present embodiments provide a non-transitory computer-readable storage medium storing computer instructions that cause the computer to perform the methods provided by the method embodiments described above.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and 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.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
It should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A wind pressure calibration method is characterized by comprising the following steps:
when a wind pressure calibration command is received, acquiring an air wind pressure value of a current train tail host machine detection platform to be calibrated and collecting a wind pressure value of a current train tail host machine wind pipe to be calibrated;
determining a target calibration value based on the air wind pressure value, and calibrating the wind pressure value of the train tail host machine to be calibrated currently based on the target calibration value to obtain the wind pressure value of the train tail host machine to be calibrated currently; the determining a target calibration value based on the air wind pressure value comprises:
judging whether the air wind pressure value is larger than a first minimum preset air wind pressure value and smaller than or equal to a first maximum preset air wind pressure value or not;
if the air wind pressure value is larger than a first minimum preset air wind pressure value and smaller than or equal to a first maximum preset air wind pressure value, accurately calibrating a first preset calibration standard to be a first target calibration value;
and if the air wind pressure value is greater than the first maximum preset air wind pressure value, accurately setting a second preset calibration standard as a second target calibration value.
2. The wind pressure calibration method according to claim 1, wherein the acquiring an air wind pressure value of a train tail host machine inspection table to be calibrated currently and collecting a wind pressure value of a train tail host machine air pipe to be calibrated currently comprises:
acquiring a target train tail host identifier carried in the wind pressure calibration command, and determining whether the current train tail host is the train tail host corresponding to the wind pressure calibration command or not based on the target train tail host identifier;
and if the current train tail host is the train tail host corresponding to the wind pressure calibration command, determining the current train tail host as the train tail host to be calibrated currently, acquiring an air wind pressure value of the train tail host to be calibrated currently on a detection platform and collecting a wind pressure value of a train tail host to be calibrated currently.
3. The wind pressure calibration method according to claim 1, wherein the collecting the wind pressure value of the train tail main engine air pipe to be calibrated currently comprises:
and carrying out a preset number of times of wind pressure AD sampling on the wind pressure value of the train tail host air pipe to be calibrated at present, and converting the preset number of wind pressure AD sampling values into the wind pressure value of the train tail host air pipe to be calibrated at present.
4. The wind pressure calibration method according to claim 1, wherein the calibrating the wind pressure value of the current train tail main unit to be calibrated based on the target calibration value to obtain the wind pressure value of the current train tail main unit to be calibrated comprises:
judging whether the wind pressure value of the current train tail host to be calibrated is larger than a first minimum preset train tail host wind pressure value and smaller than or equal to a first maximum preset train tail host wind pressure value;
if the wind pressure value of the train tail host air pipe to be calibrated currently is larger than the first minimum preset train tail host wind pressure value and is smaller than or equal to the first maximum preset train tail host wind pressure value, calibrating the wind pressure value of the train tail host air pipe to be calibrated currently based on the first target calibration value to obtain the wind pressure value of the train tail host to be calibrated currently;
and if the wind pressure value of the train tail host air pipe to be currently calibrated is larger than the first maximum preset train tail host wind pressure value, calibrating the wind pressure value of the train tail host air pipe to be currently calibrated based on the second target calibration value to obtain the wind pressure value of the train tail host to be currently calibrated.
5. The wind pressure calibration method according to any one of claims 1 to 4, further comprising:
when a wind pressure query command is received, detecting a first current train tail host air pipe wind pressure value of a train tail host air pipe to be calibrated currently, and acquiring a latest historical train tail host air pipe wind pressure value acquired before the first current train tail host air pipe wind pressure value;
determining whether the absolute value of the difference value between the air pressure value of the first current train tail main engine air pipe and the last historical train tail main engine air pipe air pressure value is less than or equal to a preset maximum allowable difference value;
if the absolute value of the difference is smaller than or equal to a preset maximum allowable difference, determining the air pressure value of the first current train tail host air pipe as the air pressure value of the current train tail host air pipe to be calibrated;
and if the absolute value of the difference is larger than the preset maximum allowable difference, re-detecting the second current train tail main machine air pipe wind pressure value of the train tail main machine air pipe to be calibrated currently.
6. The wind pressure calibration method according to claim 5, wherein after the re-detecting the second current air pressure value of the main train air pipe to be calibrated currently, the method further comprises:
if the air pressure value of the first current train tail host air pipe is smaller than the last historical train tail host air pipe air pressure value and larger than a second current train tail host air pipe air pressure value, determining the air pressure value of the first current train tail host air pipe as the air pressure value of the current train tail host air pipe to be calibrated;
if the air pressure value of the first current train tail host air pipe is greater than the last historical train tail host air pipe air pressure value and less than a second current train tail host air pipe air pressure value, determining the first current train tail host air pipe air pressure value as the air pressure value of the current train tail host air pipe to be calibrated;
and otherwise, determining the wind pressure value of the second current train tail main machine wind pipe as the wind pressure value of the current train tail main machine wind pipe to be calibrated.
7. The utility model provides a wind pressure calibrating device which characterized in that, includes that the wind pressure value obtains module and wind pressure value calibration module, wherein:
the wind pressure value acquisition module is used for acquiring the air wind pressure value of the train tail host detection table to be calibrated currently and acquiring the wind pressure value of the train tail host air pipe to be calibrated currently when a wind pressure calibration command is received;
the wind pressure value calibration module is used for determining a target calibration value based on the air wind pressure value and calibrating the wind pressure value of the train tail host air pipe to be currently calibrated based on the target calibration value to obtain the wind pressure value of the train tail host to be currently calibrated;
the wind pressure value calibration module is further used for: judging whether the air wind pressure value is larger than a first minimum preset air wind pressure value and smaller than or equal to a first maximum preset air wind pressure value or not;
if the air wind pressure value is larger than a first minimum preset air wind pressure value and smaller than or equal to a first maximum preset air wind pressure value, accurately calibrating a first preset calibration standard to be a first target calibration value;
and if the air wind pressure value is greater than the first maximum preset air wind pressure value, accurately setting a second preset calibration standard as a second target calibration value.
8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the wind pressure calibration method according to any one of claims 1 to 6 when executing the program.
9. A non-transitory computer readable storage medium having a computer program stored thereon, wherein the computer program when executed by a processor implements the wind pressure calibration method according to any one of claims 1 to 6.
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| CN206074275U (en) * | 2016-08-29 | 2017-04-05 | 扬州市宁铁通讯设备有限公司 | A kind of train tail host monitor station |
| CN208125326U (en) * | 2018-03-28 | 2018-11-20 | 中国神华能源股份有限公司 | Wireless wind pressure monitor calibration equipment and system |
| CN208043317U (en) * | 2018-04-09 | 2018-11-02 | 北京中铁列尾电子设备有限公司 | A kind of detection device of controlled train tail host |
| CN110082134A (en) * | 2019-05-16 | 2019-08-02 | 洪清喜 | A kind of bimodulus train tail host monitor station |
| CN110440983A (en) * | 2019-09-16 | 2019-11-12 | 大唐半导体科技有限公司 | A kind of control method for fully automatic for the calibration of air compressor machine sensor parameters |
| CN110617916B (en) * | 2019-09-29 | 2021-08-31 | 潍坊歌尔微电子有限公司 | Calibration method and device of air pressure sensor |
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