CN116338500B - Rail transit vehicle storage battery operation monitoring system - Google Patents
Rail transit vehicle storage battery operation monitoring system Download PDFInfo
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 claims abstract description 47
- 238000012545 processing Methods 0.000 claims abstract description 32
- 238000012423 maintenance Methods 0.000 claims description 25
- 238000004378 air conditioning Methods 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000007613 environmental effect Effects 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 6
- 230000001133 acceleration Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 208000032953 Device battery issue Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/389—Measuring internal impedance, internal conductance or related variables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/3644—Constructional arrangements
- G01R31/3646—Constructional arrangements for indicating electrical conditions or variables, e.g. visual or audible indicators
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The invention discloses a rail transit vehicle storage battery operation monitoring system, which relates to the field of data monitoring and comprises a central controller, an environment data acquisition module, an operation data acquisition module, a data processing module and a monitoring data alarm module; the environment data acquisition module, the operation data acquisition module, the data processing module and the monitoring data alarm module are respectively and electrically connected with the central controller, the battery threat value and the battery endurance value are calculated in real time, so that the threat degree and the battery endurance in the operation process of the storage battery are monitored in real time, meanwhile, the calculated operation threat value is compared with a threat threshold value, if the operation threat value is greater than or equal to the threat threshold value, an alarm signal is obtained, the obtained alarm signal is transmitted, the battery safety and the battery endurance are alarmed according to the alarm data, and the real-time effect of operation monitoring is improved.
Description
Technical Field
The invention belongs to the field of data monitoring systems, and particularly belongs to the field of a rail transit vehicle storage battery operation monitoring system.
Background
The rail transit is a kind of transportation means or transportation system in which an operation vehicle needs to run on a specific rail, and most of the transportation means or transportation system is powered by a storage battery to drive the vehicle to run, in the use process of the storage battery in the rail transit, the storage battery is used for providing starting energy for a starter and supplying power to other electric appliances in cooperation with an engine, and battery threat and endurance are two important parameters for evaluating the advantages and disadvantages of the storage battery.
For example, in the chinese patent with the prior art grant publication No. CN102879034B, a battery running state monitoring device is disclosed, which includes a digital battery voltage sensor, a digital battery temperature sensor, an engine control unit and a liquid crystal display, where signal output ends of the battery voltage sensor and the battery temperature sensor are respectively connected to different input ports of the engine control unit, and signal input ends of the liquid crystal display are connected to an output port of the engine control unit. The invention collects the state information of the storage battery in real time by using the storage battery voltage sensor and the storage battery temperature sensor, and displays the information through the liquid crystal display, so that a driver can timely and accurately know the working temperature and the discharging degree of the storage battery, and the storage battery is prevented from running in an overtemperature or overdischarge state, thereby greatly prolonging the service life of the storage battery;
a method and apparatus for monitoring the operating condition of a battery pack is also disclosed in the prior art chinese patent grant publication No. CN 106680723B. Wherein the method comprises the following steps: acquiring the switching state of each switch to be detected in the acquired direct current system; acquiring a voltage difference between a storage battery pack and a direct current bus in a direct current system; acquiring a floating charge current value of the storage battery pack; obtaining a single voltage value of each single battery in the storage battery pack; judging whether the direct current system has faults or not according to the switching state, the voltage difference, the floating charge current value and the single voltage value of each single battery of each switch to be tested, and alarming when the faults exist. The invention solves the technical problem that various running states of the storage battery pack cannot be effectively monitored;
the above prior art exists: the invention discloses a battery threat and endurance, which are two important parameters for evaluating the quality of a storage battery, but because an ideal rail transit vehicle storage battery operation monitoring system does not exist at present, a driver cannot timely and accurately know the battery threat and endurance of the storage battery in the driving process, so that the vehicle often fails to operate due to battery failure or insufficient power.
Disclosure of Invention
The invention provides a rail transit vehicle storage battery operation monitoring system which can effectively solve the problems in the background art: the battery threat and the endurance are two important parameters for evaluating the quality of the storage battery, but because an ideal rail transit vehicle storage battery operation monitoring system does not exist at present, a driver cannot timely and accurately know the battery threat and the endurance of the storage battery in the driving process, so that the vehicle is often in a non-operation condition due to battery failure or insufficient power.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the rail transit vehicle storage battery operation monitoring system comprises a central controller, an environment data acquisition module, an operation data acquisition module, a data processing module and a monitoring data alarm module; the environment data acquisition module, the operation data acquisition module, the data processing module and the monitoring data alarm module are respectively and electrically connected with the central controller, the central controller is used for controlling the normal operation of the environment data acquisition module, the operation data acquisition module, the data processing module and the monitoring data alarm module, and the environment data acquisition module is used for acquiring the operation power of the air conditioning equipment, the vehicle running speed data, the external wind speed data and the air density data of the vehicle in the running process; the operation data acquisition module is used for acquiring battery data and personnel data on the vehicle in the operation process of the vehicle; the data processing module is used for substituting the operation data into a battery threat value calculation strategy to calculate a battery threat value, substituting the operation data and the environment data into the battery endurance value calculation strategy to calculate a battery endurance value, and substituting the battery threat value and the battery endurance value into the battery threat value calculation strategy to calculate the operation threat value; the monitoring data alarm module is used for comparing the operation threat value of the data processing module with a threat threshold value to obtain alarm data and giving an alarm to related maintenance personnel aiming at the alarm data.
The invention is further improved in that the operation data acquisition module comprises a personnel data acquisition sub-module and a battery data acquisition sub-module, wherein the personnel data acquisition sub-module is used for acquiring data of maintenance personnel and passengers, the battery data acquisition sub-module is used for acquiring battery data information in the operation process of the vehicle, the personnel data acquisition sub-module comprises a maintenance personnel acquisition unit and a passenger acquisition unit, the passenger acquisition unit is used for acquiring the number of passengers and the quality data of passengers on the vehicle, and the maintenance personnel acquisition unit is used for acquiring the number data and the working time length data of the maintenance personnel on the vehicle; the battery data acquisition submodule comprises a residual electric quantity acquisition unit, an operation temperature acquisition unit, an operation humidity acquisition unit and an output power acquisition unit, wherein the residual electric quantity acquisition unit is used for acquiring residual electric quantity data of a vehicle battery, the operation temperature acquisition unit is used for acquiring temperature data of operation of the vehicle battery, the operation humidity acquisition unit is used for acquiring environmental humidity data in the operation process of the vehicle battery, and the output power acquisition unit is used for acquiring an output power value of the vehicle battery in real time.
The invention is further improved in that the environmental data acquisition module comprises an air conditioning equipment data acquisition unit, a vehicle speed acquisition unit, a wind speed acquisition unit and an air density acquisition unit; the air conditioning equipment data acquisition unit is used for acquiring the running power data information of the air conditioning equipment in the running process of the vehicle; the vehicle speed acquisition unit is used for acquiring vehicle running speed data information, the wind speed acquisition unit is used for acquiring external wind speed, and the air density acquisition unit is used for acquiring air density data in the vehicle running process.
The invention is further improved in that the data processing module comprises a battery threat calculation unit, a battery endurance calculation unit and an operation threat calculation unit, wherein the battery threat calculation unit is used for substituting operation data into a battery threat value calculation strategy to calculate a battery threat value, the battery endurance calculation unit is used for substituting operation data and environment data into the battery endurance value calculation strategy to calculate a battery endurance value, and the operation threat calculation unit is used for substituting the battery threat value and the battery endurance value into the operation threat value calculation strategy to calculate an operation threat value.
The invention is further improved in that the monitoring data alarm module comprises a data comparison unit, an alarm data transmission unit and an alarm unit, wherein the data comparison unit is used for comparing the calculated operation threat value with a threat threshold value, if the operation threat value is greater than or equal to the threat threshold value, an alarm signal is obtained, the alarm data transmission unit is used for transmitting the obtained alarm signal, and the alarm unit is used for alarming of battery safety and endurance according to alarm data.
The invention further improves that the battery threat value calculation strategy comprises the following specific steps:
s11, collecting the temperature of a battery in the running process of the vehicleHumidity near the battery->Output power data->And remaining power data>Simultaneously collect the number data of maintenance personnel +.>Service person's working time t and passenger number data +.>Overall mass data of passenger->；
S12, substituting the acquired data into a battery threat value calculation formula after dimensionless processing to calculate a battery threat value, wherein the battery threat value calculation formula is as follows:wherein->Is a temperature duty cycle of the battery,for the humidity duty cycle of the battery, < > for>For the battery output power duty cycle, +.>Is the ratio of the residual electric quantity, +.>For the overall mass ratio of the occupant, < +.>Is qualified range of battery temperature, +.>Is->Is closest to->Value of->For a safe range of humidity in the vicinity of the battery, +.>Is->Is closest to->Value of->For a safe range of battery output power, +.>Is->Is closest to->The value of (2) at the same time->；
S13, extracting the calculated battery threat value and transmitting the battery threat value to an operation threat calculation unit.
The invention further improves that the battery endurance value calculation strategy comprises the following specific steps:
s14, extracting the running power of the air conditioning equipment in the running process of the vehicleVehicle speed data->External wind speed data->And air Density data->Calculating air resistance of vehicle during runningWherein->A is the frontal area of the vehicle and is the standard value of the air density>Is the angle between the external wind direction and the vehicle driving direction, < >>Is the air resistance coefficient;
s15, simultaneously collecting rolling of vehicle wheel body and railThe friction force is generated by the friction force,wherein->For the rolling friction factor, m is the vehicle mass, g is the gravitational acceleration, the total resistance in the running process of the vehicle is calculated,and further calculates the total power P in the running process of the vehicle,；
s16, further calculating the endurance of the battery in real time,dividing the endurance S by the distance D from the vehicle to the end point to obtain a battery endurance value K.
The invention is further improved in that the operation threat value calculation strategy comprises the following specific contents:
substituting the battery threat value L and the battery endurance value K into an operation threat value calculation formula to calculate an operation threat value, wherein the calculation formula of the operation threat value is as followsWherein->For battery threat duty cycle, +.>For the battery endurance value duty ratio coefficient, < +.>。
Compared with the prior art, the invention has the following beneficial effects: the battery threat value and the battery endurance value are calculated in real time by collecting battery data, environment data and vehicle personnel data in the running process of the vehicle, substituting the data into the battery threat value calculation strategy and the battery endurance value calculation strategy to monitor the threat degree and the endurance of the storage battery in real time, meanwhile, comparing the calculated running threat value with a threat threshold value, acquiring an alarm signal if the running threat value is greater than or equal to the threat threshold value, transmitting the acquired alarm signal, alarming the battery safety and the endurance according to the alarm data, and improving the real-time effect of running monitoring.
Drawings
FIG. 1 is a schematic diagram of a schematic construction of a rail transit vehicle battery operation monitoring system of the present invention;
FIG. 2 is a schematic diagram of an operation data acquisition module of a rail transit vehicle battery operation monitoring system according to the present invention;
FIG. 3 is a schematic diagram of an environmental data collection module of a rail transit vehicle battery operation monitoring system according to the present invention;
FIG. 4 is a schematic diagram of a data processing module of a rail transit vehicle battery operation monitoring system according to the present invention;
fig. 5 is a schematic diagram of a monitoring data alarm module of the rail transit vehicle battery operation monitoring system according to the present invention.
Detailed Description
In order that the technical means, the creation characteristics, the achievement of the objects and the effects of the present invention may be easily understood, it should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "a", "an", "the" and "the" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The invention is further described below in conjunction with the detailed description.
Example 1
The embodiment collects threats in the running process of the battery and calculates threat values of the battery, and the specific scheme is that as shown in fig. 1-5, the rail transit vehicle storage battery running monitoring system comprises a central controller, an environment data collecting module, a running data collecting module, a data processing module and a monitoring data alarm module; the system comprises an environment data acquisition module, an operation data acquisition module, a data processing module and a monitoring data alarm module, wherein the environment data acquisition module, the operation data acquisition module, the data processing module and the monitoring data alarm module are respectively and electrically connected with a central controller, the central controller is used for controlling the normal operation of the environment data acquisition module, the operation data acquisition module, the data processing module and the monitoring data alarm module, and the environment data acquisition module is used for acquiring the operation power of air conditioning equipment, the vehicle running speed data, the external wind speed data and the air density data of a vehicle in the running process; the running data acquisition module is used for acquiring battery data and personnel data on the vehicle in the running process of the vehicle; the data processing module is used for substituting the operation data into the battery threat value calculation strategy to calculate the battery threat value, substituting the operation data and the environment data into the battery endurance value calculation strategy to calculate the battery endurance value, and substituting the battery threat value and the battery endurance value into the battery threat value calculation strategy to calculate the operation threat value; the monitoring data alarm module is used for comparing the operation threat value of the data processing module with a threat threshold value to obtain alarm data and giving an alarm to related maintenance personnel aiming at the alarm data;
the system comprises an operation data acquisition module, a maintenance personnel acquisition module and a working time length acquisition module, wherein the operation data acquisition module comprises a personnel data acquisition sub-module and a battery data acquisition sub-module, the personnel data acquisition sub-module is used for acquiring data of maintenance personnel and passengers, the battery data acquisition sub-module is used for acquiring battery data information in the operation process of a vehicle, the personnel data acquisition sub-module comprises a maintenance personnel acquisition unit and a passengers acquisition unit, the passengers acquisition unit is used for acquiring the number of passengers and the quality data of passengers on the vehicle, and the maintenance personnel acquisition unit is used for acquiring the number data and the working time length data of the maintenance personnel on the vehicle; the battery data acquisition submodule comprises a residual electric quantity acquisition unit, an operation temperature acquisition unit, an operation humidity acquisition unit and an output power acquisition unit, wherein the residual electric quantity acquisition unit is used for acquiring residual electric quantity data of a vehicle battery, the operation temperature acquisition unit is used for acquiring temperature data of the operation of the vehicle battery, the operation humidity acquisition unit is used for acquiring environmental humidity data in the operation process of the vehicle battery, and the output power acquisition unit is used for acquiring an output power value of the vehicle battery in real time;
the environment data acquisition module comprises an air conditioning equipment data acquisition unit, a vehicle speed acquisition unit, a wind speed acquisition unit and an air density acquisition unit; the air conditioning equipment data acquisition unit is used for acquiring the running power data information of the air conditioning equipment in the running process of the vehicle; the vehicle speed acquisition unit is used for acquiring vehicle running speed data information, the wind speed acquisition unit is used for acquiring external wind speed, and the air density acquisition unit is used for acquiring air density data in the vehicle running process;
the data processing module comprises a battery threat calculation unit, a battery endurance calculation unit and an operation threat calculation unit, wherein the battery threat calculation unit is used for substituting operation data into a battery threat value calculation strategy to calculate a battery threat value, the battery endurance calculation unit is used for substituting operation data and environment data into the battery endurance value calculation strategy to calculate a battery endurance value, and the operation threat calculation unit is used for substituting the battery threat value and the battery endurance value into the operation threat value calculation strategy to calculate an operation threat value;
the monitoring data alarm module comprises a data comparison unit, an alarm data transmission unit and an alarm unit, wherein the data comparison unit is used for comparing the calculated operation threat value with a threat threshold value, if the operation threat value is greater than or equal to the threat threshold value, an alarm signal is obtained, the alarm data transmission unit is used for transmitting the obtained alarm signal, and the alarm unit is used for alarming the battery safety and endurance according to alarm data;
the battery threat value calculation strategy comprises the following specific steps:
s11, collecting the temperature of a battery in the running process of the vehicleHumidity near the battery->Output power data->And remaining power data>Simultaneously collect the number data of maintenance personnel +.>Service person's working time t and passenger number data +.>Overall mass data of passenger->；
S12, substituting the acquired data into a battery threat value calculation formula after dimensionless processing to calculate a battery threat value, wherein the battery threat value calculation formula is as follows:wherein->For the battery temperature duty cycle, < >>For the humidity duty cycle of the battery, < > for>For the battery output power duty cycle, +.>Is the ratio of the residual electric quantity, +.>For the riding personIntegral mass fraction->Is qualified range of battery temperature, +.>Is thatIs closest to->Value of->For a safe range of humidity in the vicinity of the battery, +.>Is->Is closest to->Value of->For a safe range of battery output power, +.>Is->Is closest to->The value of (2) at the same time->；
S13, extracting the calculated battery threat value and transmitting the battery threat value to an operation threat calculation unit.
Example 2
The specific scheme of the embodiment is that battery data, environment data and vehicle personnel data in the running process of a vehicle are collected, the data are substituted into a battery threat value calculation strategy and a battery endurance value calculation strategy to be calculated, the battery threat value and the battery endurance value are calculated in real time, so that the threat degree and the endurance in the running process of a storage battery are monitored in real time, meanwhile, the calculated running threat value is compared with a threat threshold value, if the running threat value is greater than or equal to the threat threshold value, an alarm signal is obtained, the obtained alarm signal is transmitted, the battery safety and the endurance are alarmed according to the alarm data, and the real-time effect of running monitoring is improved; the system comprises an environment data acquisition module, an operation data acquisition module, a data processing module and a monitoring data alarm module, wherein the environment data acquisition module, the operation data acquisition module, the data processing module and the monitoring data alarm module are respectively and electrically connected with a central controller, the central controller is used for controlling the normal operation of the environment data acquisition module, the operation data acquisition module, the data processing module and the monitoring data alarm module, and the environment data acquisition module is used for acquiring the operation power of air conditioning equipment, the vehicle running speed data, the external wind speed data and the air density data of a vehicle in the running process; the running data acquisition module is used for acquiring battery data and personnel data on the vehicle in the running process of the vehicle; the data processing module is used for substituting the operation data into the battery threat value calculation strategy to calculate the battery threat value, substituting the operation data and the environment data into the battery endurance value calculation strategy to calculate the battery endurance value, and substituting the battery threat value and the battery endurance value into the battery threat value calculation strategy to calculate the operation threat value; the monitoring data alarm module is used for comparing the operation threat value of the data processing module with a threat threshold value to obtain alarm data, and giving an alarm to related maintenance personnel aiming at the alarm data.
In this embodiment, the operation data acquisition module includes a personnel data acquisition sub-module and a battery data acquisition sub-module, the personnel data acquisition sub-module is used for acquiring data of maintenance personnel and passengers, the battery data acquisition sub-module is used for acquiring battery data information in the operation process of the vehicle, the personnel data acquisition sub-module includes a maintenance personnel acquisition unit and a passenger acquisition unit, the passenger acquisition unit is used for acquiring the number of passengers and the quality data of passengers on the vehicle, and the maintenance personnel acquisition unit is used for acquiring the number data and the working time length data of the maintenance personnel on the vehicle; the battery data acquisition submodule comprises a residual electric quantity acquisition unit, an operation temperature acquisition unit, an operation humidity acquisition unit and an output power acquisition unit, wherein the residual electric quantity acquisition unit is used for acquiring residual electric quantity data of a vehicle battery, the operation temperature acquisition unit is used for acquiring temperature data of operation of the vehicle battery, the operation humidity acquisition unit is used for acquiring environmental humidity data in the operation process of the vehicle battery, and the output power acquisition unit is used for acquiring an output power value of the vehicle battery in real time.
In this embodiment, the environmental data acquisition module includes an air conditioning equipment data acquisition unit, a vehicle speed acquisition unit, a wind speed acquisition unit, and an air density acquisition unit; the air conditioning equipment data acquisition unit is used for acquiring the running power data information of the air conditioning equipment in the running process of the vehicle; the vehicle speed acquisition unit is used for acquiring vehicle running speed data information, the wind speed acquisition unit is used for acquiring external wind speed, and the air density acquisition unit is used for acquiring air density data in the vehicle running process.
In this embodiment, the data processing module includes a battery threat calculation unit, a battery endurance calculation unit, and an operation threat calculation unit, where the battery threat calculation unit is configured to execute battery threat value calculation by substituting operation data into a battery threat value calculation policy, the battery endurance calculation unit is configured to execute battery endurance value calculation by substituting operation data and environmental data into the battery endurance value calculation policy, and the operation threat calculation unit is configured to execute operation threat value calculation by substituting the battery threat value and the battery endurance value into the operation threat value calculation policy.
In this embodiment, the monitoring data alarm module includes a data comparison unit, an alarm data transmission unit and an alarm unit, where the data comparison unit is used to compare the calculated running threat value with a threat threshold, and if the running threat value is greater than or equal to the threat threshold, an alarm signal is obtained, the alarm data transmission unit is used to transmit the obtained alarm signal, and the alarm unit is used to alarm according to alarm data for battery safety and endurance.
In this embodiment, the battery threat value calculation strategy includes the following specific steps:
s11, collecting the temperature of a battery in the running process of the vehicleHumidity near the battery->Output power data->And remaining power data>Simultaneously collect the number data of maintenance personnel +.>Service person's working time t and passenger number data +.>Overall mass data of passenger->；
S12, substituting the acquired data into a battery threat value calculation formula after dimensionless processing to calculate a battery threat value, wherein the battery threat value calculation formula is as follows:wherein->For the battery temperature duty cycle, < >>For the humidity of the batteryRatio of->For the battery output power duty cycle, +.>Is the duty ratio of the remaining power,for the overall mass ratio of the occupant, < +.>Is qualified range of battery temperature, +.>Is->Is closest to->Value of->For a safe range of humidity in the vicinity of the battery, +.>Is->Is closest to->Is used as a reference to the value of (a),for a safe range of battery output power, +.>Is->Is closest to->At the same time as the value of (a)；
S13, extracting the calculated battery threat value and transmitting the battery threat value to an operation threat calculation unit.
In this embodiment, the battery endurance value calculation strategy includes the following specific steps:
s14, extracting the running power of the air conditioning equipment in the running process of the vehicleVehicle speed data->External wind speed data->And air Density data->Calculating air resistance of vehicle during runningWherein->A is the frontal area of the vehicle and is the standard value of the air density>Is the angle between the external wind direction and the vehicle driving direction, < >>Is the air resistance coefficient;
s15, collecting rolling friction force between the wheel body of the vehicle and the rail,wherein->For the rolling friction factor, m is the vehicle mass, g is the gravitational acceleration, the total resistance in the running process of the vehicle is calculated,and further calculates the total power P in the running process of the vehicle,；
s16, further calculating the endurance of the battery in real time,dividing the endurance S by the distance D from the vehicle to the end point to obtain a battery endurance value K.
In this embodiment, the running threat value calculation strategy includes the following specific contents:
substituting the battery threat value L and the battery endurance value K into an operation threat value calculation formula to calculate an operation threat value, wherein the calculation formula of the operation threat value is as followsWherein->For battery threat duty cycle, +.>For the battery endurance value duty ratio coefficient, < +.>。
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The utility model provides a rail transit vehicle battery operation monitoring system which characterized in that: the system comprises a central controller, an environment data acquisition module, an operation data acquisition module, a data processing module and a monitoring data alarm module; the environment data acquisition module, the operation data acquisition module, the data processing module and the monitoring data alarm module are respectively and electrically connected with the central controller, the central controller is used for controlling the normal operation of the environment data acquisition module, the operation data acquisition module, the data processing module and the monitoring data alarm module, and the environment data acquisition module is used for acquiring the operation power of the air conditioning equipment, the vehicle running speed data, the external wind speed data and the air density data of the vehicle in the running process; the operation data acquisition module is used for acquiring battery data and personnel data on the vehicle in the operation process of the vehicle; the data processing module is used for substituting the operation data into a battery threat value calculation strategy to calculate a battery threat value, substituting the operation data and the environment data into the battery endurance value calculation strategy to calculate a battery endurance value, and substituting the battery threat value and the battery endurance value into the battery threat value calculation strategy to calculate the operation threat value; the monitoring data alarm module is used for comparing the operation threat value of the data processing module with a threat threshold value to obtain alarm data and giving an alarm to related maintenance personnel aiming at the alarm data;
the operation data acquisition module comprises a personnel data acquisition sub-module and a battery data acquisition sub-module, wherein the personnel data acquisition sub-module is used for acquiring data of maintenance personnel and passengers, the battery data acquisition sub-module is used for acquiring battery data information in the operation process of the vehicle, the personnel data acquisition sub-module comprises a maintenance personnel acquisition unit and a passenger acquisition unit, the passenger acquisition unit is used for acquiring the number of passengers and the quality data of passengers on the vehicle, and the maintenance personnel acquisition unit is used for acquiring the number data and the working time length data of the maintenance personnel on the vehicle; the battery data acquisition submodule comprises a residual electric quantity acquisition unit, an operation temperature acquisition unit, an operation humidity acquisition unit and an output power acquisition unit, wherein the residual electric quantity acquisition unit is used for acquiring residual electric quantity data of a vehicle battery, the operation temperature acquisition unit is used for acquiring temperature data of the vehicle battery in operation, the operation humidity acquisition unit is used for acquiring environmental humidity data in the operation process of the vehicle battery, and the output power acquisition unit is used for acquiring an output power value of the vehicle battery in real time;
the environment data acquisition module comprises an air conditioning equipment data acquisition unit, a vehicle speed acquisition unit, a wind speed acquisition unit and an air density acquisition unit; the air conditioning equipment data acquisition unit is used for acquiring the running power data information of the air conditioning equipment in the running process of the vehicle; the vehicle speed acquisition unit is used for acquiring vehicle running speed data information, the wind speed acquisition unit is used for acquiring external wind speed, and the air density acquisition unit is used for acquiring air density data in the vehicle running process;
the data processing module comprises a battery threat calculation unit, a battery endurance calculation unit and an operation threat calculation unit, wherein the battery threat calculation unit is used for substituting operation data into a battery threat value calculation strategy to calculate a battery threat value, the battery endurance calculation unit is used for substituting operation data and environment data into the battery endurance value calculation strategy to calculate a battery endurance value, and the operation threat calculation unit is used for substituting the battery threat value and the battery endurance value into the operation threat value calculation strategy to calculate an operation threat value;
the monitoring data alarm module comprises a data comparison unit, an alarm data transmission unit and an alarm unit, wherein the data comparison unit is used for comparing the calculated operation threat value with a threat threshold value, if the operation threat value is greater than or equal to the threat threshold value, an alarm signal is obtained, the alarm data transmission unit is used for transmitting the obtained alarm signal, and the alarm unit is used for alarming the battery safety and endurance according to alarm data;
the battery threat value calculation strategy comprises the following specific steps:
s11, collecting the temperature of a battery in the running process of the vehicleHumidity near the battery->Output power data->And remaining power data>Simultaneously collect the number data of maintenance personnel +.>Service person's working time t and passenger number data +.>Overall mass data of passenger->；
S12, substituting the acquired data into a battery threat value calculation formula after dimensionless processing to calculate a battery threat value, wherein the battery threat value calculation formula is as follows:wherein->For the battery temperature duty cycle, < >>For the humidity duty cycle of the battery, < > for>For the battery output power duty cycle, +.>Is the ratio of the residual electric quantity, +.>For the overall mass ratio of the occupant, < +.>Is qualified range of battery temperature, +.>Is->Is closest to->Value of->For a safe range of humidity in the vicinity of the battery, +.>Is->Is closest toValue of->For a safe range of battery output power, +.>Is->Is closest to->At the same time as the value of (a)；
S13, extracting the calculated battery threat value and transmitting the battery threat value to an operation threat calculation unit.
2. A rail transit vehicle battery operation monitoring system as defined in claim 1, wherein: the battery endurance value calculation strategy comprises the following specific steps:
s14, extracting the running power of the air conditioning equipment in the running process of the vehicleVehicle speed data->External wind speed data->And air Density data->Calculating the air resistance of the vehicle during driving>Wherein->A is the frontal area of the vehicle and is the standard value of the air density>Is the angle between the external wind direction and the vehicle driving direction, < >>Is the air resistance coefficient;
s15, collecting rolling friction force between the wheel body of the vehicle and the rail,wherein->For the rolling friction factor, m is the vehicle mass, g is the gravitational acceleration, the total resistance in the running process of the vehicle is calculated,and further calculates the total power P in the running process of the vehicle,；
s16, further calculating the endurance of the battery in real time,dividing the endurance S by the distance D from the vehicle to the end point to obtain a battery endurance value K.
3. A rail transit vehicle battery operation monitoring system as defined in claim 2, wherein: the operation threat value calculation strategy comprises the following specific contents:
substituting the battery threat value L and the battery endurance value K into an operation threat value calculation formula to calculate an operation threat value, wherein the calculation formula of the operation threat value is as followsWherein->For battery threat duty cycle, +.>For the battery endurance value duty ratio coefficient, < +.>。
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