CN115817548A - Rail vehicle air conditioner control method, device and medium thereof - Google Patents
Rail vehicle air conditioner control method, device and medium thereof Download PDFInfo
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Abstract
The application discloses a rail vehicle air conditioner control method, a device and a medium thereof, relates to the technical field of rail vehicles, and is used for controlling an air conditioner system of a rail vehicle, aiming at the problem that the timeliness of adjusting fresh air volume by detecting carbon dioxide concentration through a sensor is not enough at present, the rail vehicle air conditioner control method is provided, the real-time weight of each carriage is sensed through the existing air spring on the rail vehicle, and because the mass of each carriage is known when a train is put into use formally, the total weight of passengers in the current carriage can be obtained through the pressure information of the air spring, so that the number of the passengers and the density of the passengers are obtained, the density of the passengers directly influences the consumption condition of oxygen in the carriage and the generation condition of carbon dioxide, compared with the method of determining the required input fresh air volume through the carbon dioxide concentration, the method of determining the fresh air volume according to the demand of the passengers is more direct and accurate, the problem of untimely air intake can not occur, and the riding experience of the passengers is improved.
Description
Technical Field
The application relates to the technical field of railway vehicles, in particular to a railway vehicle air conditioner control method, device and medium.
Background
The air-conditioning control system of the railway vehicle is mainly used for improving the internal environment of the vehicle, improving the riding comfort of passengers, and is also a key system for controlling the air pressure inside and outside the vehicle. With the continuous development of the rail vehicle industry, the speed per hour of a rail vehicle is faster and faster, and the air temperature, the air inlet and the air exhaust in the vehicle are controlled by an air conditioner control system. For example, for adjusting the fresh air volume of a vehicle, a method of detecting the concentration of carbon dioxide in the vehicle through a sensor and adjusting the fresh air volume according to the detected concentration of carbon dioxide is mainly adopted at present to ensure the riding experience of passengers in the vehicle.
However, the method of detecting the carbon dioxide concentration in the vehicle by the sensor and then adjusting the fresh air volume is not sufficient in timeliness, the fresh air volume entering the vehicle is only related to the current carbon dioxide concentration, and if the number of passengers in the vehicle is large, the fresh air volume entering the vehicle can meet the requirements of the passengers when the carbon dioxide concentration is reduced to a lower degree, so that the riding experience of the passengers is influenced, and even danger is brought.
Therefore, a need exists for a control method for an air conditioner of a rail vehicle, which solves the problem that the timeliness of adjusting fresh air volume by detecting carbon dioxide concentration through a sensor is insufficient.
Disclosure of Invention
The application aims to provide a rail vehicle air conditioner control method, a rail vehicle air conditioner control device and a medium thereof, so as to solve the problem that the timeliness is insufficient when the sensor detects the concentration of carbon dioxide to adjust the fresh air volume.
In order to solve the technical problem, the application provides a rail vehicle air conditioner control method, which includes:
acquiring pressure information of an air spring of the railway vehicle;
determining passenger density based on the pressure information;
determining fresh air volume according to the passenger density;
and controlling the air conditioner fan to input fresh air according to the fresh air quantity.
Preferably, the method further comprises the following steps:
monitoring the working states of a compressor and an air-conditioning fan in the air-conditioning unit;
when the working state of the compressor or the air-conditioning fan is abnormal, the running state of the compressor or the air-conditioning fan is cut off;
acquiring abnormal information of the compressor or the air conditioner fan, and calling a corresponding pre-written model to control the compressor or the air conditioner fan according to the abnormal information; wherein the pre-write model includes different models for controlling device cooling, latency outputs, and hiccup outputs.
Preferably, the method further comprises the following steps:
acquiring video information of a rail vehicle video monitoring device;
determining passenger density according to the video information;
correspondingly, the step of determining the fresh air volume according to the passenger density comprises the following steps:
the fresh air volume is determined based on the passenger density determined from the pressure information and the passenger density determined from the video information.
Preferably, the method further comprises the following steps:
collecting the concentration of carbon dioxide in the rail vehicle through a sensor;
accordingly, determining the fresh air volume based on the passenger density determined from the pressure information and the passenger density determined from the video information includes:
the fresh air volume is determined based on the passenger density determined from the pressure information and the passenger density determined from the video information, and the carbon dioxide concentration.
Preferably, when the working state of the compressor or the air conditioner fan is abnormal, the method further comprises:
and switching to the corresponding other air conditioner air supply modes according to the current air conditioner air supply mode to control the air conditioning unit.
Preferably, the method further comprises the following steps:
if the concentration of the carbon dioxide acquired by the sensor exceeds a preset threshold value, returning first alarm information;
and if the duration time of the abnormal working state of the compressor or the air conditioner fan exceeds the preset time length, returning second alarm information.
Preferably, the method further comprises the following steps:
and acquiring the state information of each device in the air conditioning unit, and sending the state information to a display screen for displaying.
In order to solve the technical problem, the present application further provides a rail vehicle air conditioner control device, including:
the pressure acquisition module is used for acquiring pressure information of an air spring of the railway vehicle;
a density determination module for determining passenger density based on the pressure information;
the air volume determining module is used for determining fresh air volume according to the passenger density;
and the fresh air control module is used for controlling the air conditioner fan to input fresh air according to the fresh air volume.
Preferably, the air conditioning control device for a railway vehicle further includes:
the protection control module is used for monitoring the working states of a compressor and an air conditioning fan in the air conditioning unit; when the working state of the compressor or the air-conditioning fan is abnormal, the running state of the compressor or the air-conditioning fan is cut off; acquiring abnormal information of the compressor or the air conditioner fan, and calling a corresponding pre-written model to control the compressor or the air conditioner fan according to the abnormal information; wherein the pre-write model includes different models for controlling device cooling, latency outputs, and hiccup outputs.
The video monitoring module is used for acquiring video information of the rail vehicle video monitoring equipment; passenger density is determined from the video information.
And the carbon dioxide acquisition module is used for acquiring the concentration of carbon dioxide in the rail vehicle through the sensor.
And the mode switching module is used for switching to other corresponding air supply modes of the air conditioner to control the air conditioning unit according to the current air supply mode of the air conditioner.
The warning module is used for returning first warning information if the concentration of the carbon dioxide acquired by the sensor exceeds a preset threshold value; and if the duration time of the abnormal working state of the compressor or the air conditioner fan exceeds the preset time length, returning second alarm information.
And the state display module is used for acquiring the state information of each device in the air conditioning unit and sending the state information to the display screen for displaying.
In order to solve the technical problem, the present application further provides a rail vehicle air conditioner control device, including:
a memory for storing a computer program;
and the processor is used for realizing the steps of the rail vehicle air conditioner control method when executing the computer program.
In order to solve the technical problem, the present application further provides a computer readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the rail vehicle air conditioner control method as described above.
The application provides a rail vehicle air conditioner control method, current air spring on through rail vehicle, the real-time weight in each carriage of perception, because the quality in each carriage is known when the train formally drops into use, so the total weight of passenger in the current carriage is obtained to the pressure information of accessible air spring, and then obtain passenger number and passenger density, passenger density is directly influencing the consumption condition to oxygen in the carriage and the generation condition of carbon dioxide, compare in the fresh air volume of confirming required input through carbon dioxide concentration, the mode of confirming fresh air volume according to the passenger demand is more direct and accurate, the untimely problem of air inlet can not appear yet, passenger's experience by bus has been improved, and be favorable to protecting passenger's personal safety.
The rail vehicle air conditioner control device and the computer readable storage medium provided by the application correspond to the method, and the effects are the same as the effects.
Drawings
In order to more clearly illustrate the embodiments of the present application, the drawings needed for the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.
Fig. 1 is a flowchart of a method for controlling an air conditioner of a rail vehicle according to the present invention;
FIG. 2 is a flow chart of another method for controlling an air conditioner of a rail vehicle according to the present invention;
FIG. 3 is a flow chart of a protection control mode method according to the present invention;
FIG. 4 is a structural diagram of an air conditioning control device for a railway vehicle according to the present invention;
fig. 5 is a structural diagram of another air conditioning control device for a rail vehicle according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the present application.
The core of the application is to provide a rail vehicle air conditioner control method, a rail vehicle air conditioner control device and a medium of the rail vehicle air conditioner control device.
In order that those skilled in the art will better understand the disclosure, the following detailed description will be given with reference to the accompanying drawings.
For the current railway vehicle, the control of ventilation and temperature in the vehicle is realized by a vehicle air conditioning system, a core unit responsible for controlling the whole vehicle air conditioning system is an air conditioning intelligent control unit (ACCU), the ACCU is communicated with a vehicle Central Control Unit (CCU), receives a control instruction (such as switching air conditioning mode, temperature adjusting instruction, ventilation instruction and the like) sent by the CCU, and further sends corresponding control signals to equipment (such as an air conditioning fan, a compressor and the like) in each air conditioning unit controlled by the ACCU, so that corresponding functions are realized.
In the application of the air conditioning control system of the railway vehicle, an important control function is to control the input of fresh air in the vehicle, and if no fresh air is input into the vehicle for a long time or the input fresh air volume is insufficient, the concentration of carbon dioxide in the vehicle can rise, so that discomfort and even personal danger are brought to passengers. At present, detection equipment such as a rail vehicle peripheral sensor is mostly adopted to detect the concentration of carbon dioxide in a vehicle, and then the input fresh air volume is controlled according to the collected concentration of carbon dioxide. Conventionally, the logic control may be implemented by means of a threshold value, for example, when the concentration of carbon dioxide in the vehicle exceeds a certain threshold value, fresh air starts to be input into the vehicle, when the concentration of carbon dioxide in the vehicle exceeds the threshold value, the amount of fresh air delivered increases as the concentration of carbon dioxide increases, and the like. However, this method inevitably faces a problem that the adjustment of the fresh air volume input into the vehicle is established when the concentration of carbon dioxide reaches a certain standard, and the rising of carbon dioxide cannot be known in advance, which still has a certain influence on the riding experience of passengers.
In order to solve the above problem, the present embodiment provides a method for controlling an air conditioner of a rail vehicle, as shown in fig. 1, including:
s11: and acquiring pressure information of the air spring of the railway vehicle.
In order to ensure riding comfort of passengers, air springs are arranged in various vehicles which are put into use nowadays to achieve the effects of shock absorption and the like.
S12: the passenger density is determined from the pressure information.
The air spring is a device which is filled with compressed air in a sealed container and realizes the elastic action by utilizing the compressibility of the air. The gas pressure inside the vehicle can reflect the total weight of the current compartment to a certain extent. In the railway vehicle which is put into use, the total mass of each section of the vehicle body is known, so the total mass of passengers in the carriage can be obtained according to the current pressure information of the air spring and the known total mass of the carriage body. Similarly, the size of the space in the vehicle cabin is also known, from which the density of passengers in the vehicle cabin can be deduced.
S13: and determining the fresh air volume according to the passenger density.
After the passenger density in the compartment is obtained, the fresh air input quantity required by the current compartment can be easily determined according to the production quantity of carbon dioxide and the oxygen demand quantity in unit time of different passenger densities.
S14: and controlling the air conditioner fan to input fresh air according to the fresh air quantity.
Further, since the main application of the air conditioning control method for the rail vehicle provided by the present application is the rail vehicle, and most of rail vehicles which are currently put into use are provided with video monitoring equipment, this embodiment further provides a preferred implementation scheme based on this, and the method further includes:
s15: and acquiring video information of the rail vehicle video monitoring equipment.
S16: passenger density is determined from the video information.
Accordingly, step S13: the fresh air volume is determined according to the passenger density:
s13: the fresh air volume is determined based on the passenger density determined from the pressure information and the passenger density determined from the video information.
It is easy to know that in the field of image recognition, technologies such as face recognition are becoming mature, and according to video information returned by video monitoring equipment arranged at various places in a carriage, the number of passengers can be analyzed and determined through the face recognition technology, so that the passenger density can be obtained. The accuracy of the obtained result is related to the monitoring coverage range of the video monitoring camera and the accuracy of the face recognition algorithm.
The preferred scheme provided by the embodiment provides another method for determining the passenger density, and the method also utilizes the existing hardware device in the railway vehicle, does not need to add additional equipment, determines the passenger density from another angle, and can be used in combination with the scheme for determining the passenger density through the air spring to obtain a more accurate passenger density determination result, so that more accurate fresh air volume input regulation is realized, and the riding comfort of passengers is further improved.
In addition, this embodiment provides another preferred embodiment, and the method further includes:
s17: the carbon dioxide concentration in the rail vehicle is collected through a sensor.
Accordingly, step S13: according to the passenger density determined by the pressure information and the passenger density determined by the video information, the fresh air volume is determined to be:
s13: the fresh air volume is determined based on the passenger density determined from the pressure information, the passenger density determined from the video information, and the carbon dioxide concentration.
It should be noted that, in practical applications, there is no sequential limitation between steps S11 and S12 and steps S15 and S16 and step S17, and fig. 2 is only one possible implementation, and precisely, these steps occur before step S13, and there is no other limitation.
In the preferred embodiment, the pressure information returned by the air spring of the rail vehicle or the video information returned by the video monitoring device is used for determining the passenger density, the passenger density reflects the requirement of the passenger for inputting the fresh air quantity for a future period of time, and the carbon dioxide concentration detected by the sensor is the carbon dioxide concentration in the vehicle at the current moment and reflects the current state in the vehicle. The passenger density can know the input fresh air volume to meet the requirement of the passenger for a period of time in the future, and the requirement of the passenger on the fresh air volume at the current moment can be determined through the carbon dioxide concentration. That is, passenger density reflects the future, carbon dioxide concentration reflects the present, and the comprehensive consideration of both the determined fresh air volume input is more accurate and more suitable for the actual passenger's needs.
Specifically, according to the passenger density, the input fresh air volume can be determined to reduce, keep or increase the carbon dioxide concentration in the vehicle, and according to the carbon dioxide concentration, how the carbon dioxide concentration required by the current carriage changes can be known, so that more accurate and timely fresh air input is obtained, and the riding experience of the passenger is optimized to the maximum extent. In addition, according to the preferred scheme provided by the embodiment, no additional equipment is needed, and the more accurate result compared with the fresh air volume determined only according to the concentration of the carbon dioxide returned by the sensor can be realized only by multiplexing the existing devices and equipment of the railway vehicle, so that the riding experience of passengers is optimized, and the personal safety of the passengers is ensured.
In a vehicle such as a railway vehicle divided into a plurality of cars, the input of the fresh air volume may be controlled by mainly using different cars, and in practical applications, the fresh air volume is determined and input according to the situation of different passenger densities and carbon dioxide concentrations in each car.
The utility model provides a rail vehicle air conditioner control method, need not to make the change to rail vehicle's structure, also need not to add new equipment or device, only need through multiplexing the existing air spring of current rail vehicle, confirm the passenger number in each section carriage according to the pressure information that air spring returned, and then obtain the passenger density in each section carriage, reflect the demand to the fresh air input in a period of time in the future with passenger density, thereby make the fresh air volume of confirming more laminate in passenger's actual need, for only relying on the carbon dioxide concentration that the sensor was gathered, the method that this application provided has more predictability to the regulation of fresh air volume, fundamentally has solved the problem that fresh air volume mediation does not in time cause harmful effects to passenger experience by bus.
In practical application, a rail vehicle air conditioning control system generally requires that air conditioning equipment has two control modes of automatic control and manual control, each control mode has six working conditions of full cooling, half cooling, full heating, half heating, ventilation and shutdown, and has more than ten protection requirements of high-voltage, low-voltage and overheating modes, and more control strategies and monitoring signals are involved, so that the circuit structure is more complex, and the possibility of system failure caused by single fault is higher. Because of the importance of the climate control system for controlling the environment inside the vehicle, how to maintain the stable environment inside the vehicle when the climate control system fails is a problem that is appreciated by those skilled in the art.
Based on this, this example provides a preferred embodiment, and the method further comprises:
s21: and monitoring the working states of a compressor and an air-conditioning fan in the air-conditioning unit.
S22: and when the working state of the compressor or the air-conditioning fan is abnormal, the running state of the compressor or the air-conditioning fan is cut off.
S23: and acquiring abnormal information of the compressor or the air conditioner fan, and calling a corresponding pre-written model to control the compressor or the air conditioner fan according to the abnormal information.
Wherein the pre-write model includes different control models for controlling the device cooling, the delayed output, and the hiccup output.
The ACCU controls the air conditioning unit and peripheral equipment, monitors the running state of the air conditioning unit and the peripheral equipment, and enters a protection state when the equipment such as a compressor, an air conditioning fan and the like of the air conditioning unit is abnormal, for example, the protection states such as low-temperature alarm, low-pressure alarm, overheating alarm and the like, wherein different protection states correspond to different abnormal conditions.
When the air conditioner group equipment fails, the ACCU needs to cut off the working state of the equipment in time, corresponding to the alarm information of different protection states, corresponding control models are selected from each pre-written model stored in the ACCU to try and process abnormal equipment, and the trying and processing measures adopted for solving the abnormal problem include but are not limited to: cooling, delayed output, and hiccup output. The trial and error measures can solve most simple abnormalities or faults, thereby being beneficial to improving the stability of the air-conditioning control system, namely being beneficial to ensuring the normal and comfortable environment in the vehicle.
Besides trying to process abnormal equipment, the ACCU should closely monitor the environmental conditions in the vehicle through peripheral equipment (mainly sensors for collecting various vehicle condition information), wherein indexes such as temperature and carbon dioxide concentration are taken as key objects of attention, and other normal air conditioning unit equipment is called to ensure the environmental stability in the vehicle. Further, that is, when the working state of the compressor or the air conditioner fan is abnormal, the method further includes:
s24: and switching to the corresponding other air conditioner air supply modes according to the current air conditioner air supply mode to control the air conditioning unit.
Exemplarily, if a current driver issues an ACCU control command through a CCU, the ACCU control command indicates that the current mode is a full cooling mode, the air conditioning unit equipment with a fault is a compressor, and an air conditioning fan normally operates, the full cooling mode can be switched to a semi-cooling mode or a temporary ventilation mode, so that the stability of the environment in the vehicle is maintained to the maximum extent, and the riding comfort of passengers is not greatly influenced in the fault detection and troubleshooting processes.
Likewise, there is no restriction on the order between step S24 and step S23, and the embodiment shown in fig. 3 is only one possible embodiment.
The preferable scheme provided by the embodiment is a scheme for maintaining the environmental stability in the vehicle when the air conditioning control system of the railway vehicle has equipment failure and enters the protection mode. Specifically, the running state of each device in the air conditioning unit is monitored through control devices such as the ACCUs, if the abnormal conditions occur, different pre-writing models are called according to the different abnormal problems, the different pre-writing models are tried to be solved, most simple abnormal problems can be solved through processing means such as device cooling, delay output and hiccup output, the stability of the air conditioning control system is improved, and the riding experience of passengers is further guaranteed.
Further, if the above-mentioned embodiment fails to solve the abnormal problem, it indicates that the problem occurring in the air conditioning unit equipment may be serious or complicated, it is necessary to prompt the relevant personnel to perform troubleshooting and resolution, and indicators closely related to passengers, such as carbon dioxide concentration, need to be monitored, so this embodiment also provides a preferred embodiment, where the above-mentioned method further includes:
if the concentration of the carbon dioxide acquired by the sensor exceeds a preset threshold value, returning first alarm information;
and if the duration time of the abnormal working state of the compressor or the air conditioner fan exceeds the preset time length, returning second alarm information.
It is easy to understand that the first alarm information and the second alarm information should be distinguished in content, so that the related personnel can quickly determine the reason for the alarm according to the returned alarm information. However, the present embodiment does not limit the expression form of the alarm information, and may display the alarm information in the form of characters, images, diagrams, and the like through a display screen arranged in the cab, and may also give an alarm in the form of sound and light signals through a buzzer, a warning light, and the like, and the alarm information may be sent to a train control center on the ground or the like, except for a relevant person in the rail vehicle, to inform the rail vehicle that an abnormality occurs at present, and the problem needs to be checked and solved in time.
Further, the method for eliminating the above-mentioned abnormality or problem that the rail vehicle is notified to the relevant personnel through the warning message also provides a preferred implementation scheme, and the method further includes:
and acquiring the state information of each device in the air conditioning unit, and sending the state information to a display screen for displaying.
The display screen may be a total display screen arranged in the cab, or a sub-control display screen at a position where a corresponding manager of each carriage is located, which is not limited in this embodiment. Similarly, for the specific type of the status information of each device of the air conditioning unit displayed in the display screen, the embodiment is also not limited, and may include but is not limited to: control indexes, electrical parameters, service time, residual service life and the like of each air conditioning unit device.
Under the normal condition, the air conditioning control method for the rail vehicle provided by the embodiment regulates the input fresh air volume in the vehicle, so that the concentration of carbon dioxide in the vehicle can be effectively ensured not to be too high, but under some extreme conditions, such as the conditions that the rail vehicle drives into a tunnel and the speed of the rail vehicle is too fast to cause negative pressure, fire occurs and the like, the condition that the concentration of carbon dioxide exceeds the standard still possibly occurs, so that the embodiment monitors the concentration of carbon dioxide, if the concentration of carbon dioxide exceeds a preset threshold value, the current concentration of carbon dioxide is too high, and people in the vehicle can be suffocated, so that the fresh air input into the vehicle is prompted to relevant people, and meanwhile, the emission of waste gas in the vehicle is accelerated, so that the problem is solved.
In addition, when the air conditioner group equipment breaks down, the embodiment provides a solution applicable to most simple faults, the solution is realized through a pre-writing control model such as cooling equipment, delay output, hiccup output and the like, if the problem is not solved after the preset time is exceeded, the abnormal problem is complicated to explain, different warning information is sent to inform relevant personnel to check and solve the fault problem, and the stable operation of the air conditioner control system is guaranteed.
And as control devices such as an ACCU (adaptive control unit) and the like for controlling the air conditioning unit to work, the control devices can be reused for monitoring the running state of each device in the air conditioning unit, and the obtained state information is sent to a display screen in real time for displaying, so that related personnel can conveniently master the running condition of the current air conditioning unit of the railway vehicle in time, and the control devices are beneficial to the pre-judgment and the troubleshooting of faults and problems.
For further explanation of the air conditioning control method for the rail vehicle provided by the present application, a possible embodiment specifically applied to the rail vehicle is explained below with reference to an example:
the rail vehicle adopts an air conditioner intelligent control unit (ACCU), an air conditioner unit and peripheral equipment, wherein the air conditioner unit comprises a ventilator, a compressor and other equipment, and the peripheral equipment comprises a sensor and the like.
The ACCU integrally adopts a dual-system hot standby redundancy control structure, the usability of an air conditioner control system is enhanced, and meanwhile, devices or modules for overcurrent protection and automatic output cut-off are arranged on external loads, so that the overall safety of the system is improved; the analog quantity monitoring part and the communication function of the intelligent control unit of the air conditioner adopt a single-system board card, so that the cost is reduced, and meanwhile, the speed regulation control of the fan can be realized through the communication with an external fan controller; the air conditioner control system adopts contactless control, reduces the number of peripheral relays and contactors, compresses the occupied space and weight of the control system, and simultaneously adopts software programming to realize hard-line control logic and reduce the subsequent technical transformation and maintenance cost.
The ACCU is mainly used for controlling and protecting air-conditioning equipment in the car, the control mode comprises centralized control, manual control and protection control, and the priority is as follows: protection control > manual control > centralized control.
The automatic control mode (centralized control mode) is that the communication between the vehicle Central Control Unit (CCU) and the ACCU is realized through the Ethernet, at the moment, the air conditioner belongs to the centralized control mode, the vehicle network sends the driver requirement to each vehicle air conditioner controller, and each vehicle air conditioner controller starts the corresponding unit according to the condition of the vehicle and controls the temperature.
The manual control mode is that when the ACCU detects abnormal CCU communication or the signal is transmitted by the manual control device of the car, the ACCU enters the manual control mode, a program pre-written in the controller works in the manual control mode, and corresponding equipment in the air conditioning unit is directly controlled to start according to the internal condition and the external temperature condition of the car to execute cooling or heating work.
The protection mode is also the method adopted when equipment in the air conditioning unit fails in the embodiment of the method, when the ACCU controls the equipment such as a compressor, a ventilator and the like in the air conditioning unit to work, the state of the equipment is monitored at the same time, when the protection such as low-temperature alarm, low-pressure alarm, overheating alarm and the like occurs, the working state of the equipment is cut off within 30ms, the attempts such as cooling, time delay, hiccup output and the like are performed through an internal pre-writing model corresponding to different alarm conditions, the temperature condition in the vehicle is closely monitored at the same time, other working modes are started to ensure the environment control in the vehicle (for example, the requirement in the original centralized control mode is full-cooling mode operation, at the moment, one compressor fails, the ACCU is switched into a semi-cooling mode or a temporary ventilation mode to ensure that the environment change in the vehicle is not large within the fault detection time), and if the fault is not recovered within a certain time, the ACCU reports the vehicle to prompt the fault.
In addition, the ACCU also acquires the concentration condition of carbon dioxide in the vehicle through a sensor of peripheral equipment, and adjusts the fresh air volume in the vehicle through video monitoring equipment and the pressure of an air spring of the vehicle comprehensively, so that when the concentration of the carbon dioxide in the vehicle rises, the input of fresh air in the vehicle is increased, and the exhaust of waste gas in the vehicle is accelerated; when the carbon dioxide concentration reaches a dangerous value in the vehicle, an alarm is given, the situation that people suffocate (the situation that waste gas cannot be discharged due to negative pressure or other situations such as fire disasters are caused due to the fact that the speed in a tunnel is too high) is avoided, and meanwhile, fresh air is predicted and adjusted in advance according to the passenger density monitored by the video. When the density of people in the vehicle is not high, the fresh air input is reduced, the temperature in the vehicle can be effectively controlled, and the energy consumption is saved.
For the control of fresh air input, the ACCU performs fan speed regulation control through RS-485 (a communication interface standard), the number of fan control cables is reduced, the energy consumption of the fan is reduced, and meanwhile, fan state information is contained in communication, so that comprehensive fan early warning and alarm protection control and fan state diagnosis can be performed. The collected running conditions of all the equipment of the air conditioning system are displayed on a large screen in real time, the statistics of the service time and the residual service life time (service life percentage) of all the equipment in the air conditioning unit are included, and related personnel can monitor the running conditions of the air conditioning control system conveniently. Meanwhile, the running state data is stored at regular time, so that the air conditioning system is convenient to overhaul and maintain.
In the above embodiments, a method for controlling an air conditioner of a rail vehicle is described in detail, and the present application also provides a corresponding embodiment of an air conditioner control device of a rail vehicle. It should be noted that the present application describes the embodiments of the apparatus portion from two perspectives, one from the perspective of the function module and the other from the perspective of the hardware.
Based on the angle of functional module, this embodiment provides a rail vehicle air conditioner controlling means, includes:
the pressure acquisition module 31 is used for acquiring pressure information of an air spring of the railway vehicle;
a density determination module 32 for determining passenger density based on the pressure information;
the air volume determining module 33 is used for determining the fresh air volume according to the passenger density;
and the fresh air control module 34 is used for controlling the air conditioner fan to input fresh air according to the fresh air quantity.
Preferably, the air conditioning control device for a railway vehicle further includes:
the protection control module is used for monitoring the working states of a compressor and an air conditioning fan in the air conditioning unit; when the working state of the compressor or the air-conditioning fan is abnormal, the running state of the compressor or the air-conditioning fan is cut off; acquiring abnormal information of the compressor or the air conditioner fan, and calling a corresponding pre-written model to control the compressor or the air conditioner fan according to the abnormal information; wherein the pre-write model includes different models for controlling device cooling, latency outputs, and hiccup outputs.
The video monitoring module is used for acquiring video information of the rail vehicle video monitoring equipment; passenger density is determined from the video information.
And the carbon dioxide acquisition module is used for acquiring the concentration of carbon dioxide in the rail vehicle through the sensor.
And the mode switching module is used for switching to other corresponding air supply modes of the air conditioner to control the air conditioning unit according to the current air supply mode of the air conditioner.
The warning module is used for returning first warning information if the concentration of the carbon dioxide acquired by the sensor exceeds a preset threshold value; and if the duration time of the abnormal working state of the compressor or the air conditioner fan exceeds the preset time length, returning second alarm information.
And the state display module is used for acquiring the state information of each device in the air conditioning unit and sending the state information to the display screen for displaying.
Since the embodiment of the apparatus portion and the embodiment of the method portion correspond to each other, please refer to the description of the embodiment of the method portion for the embodiment of the apparatus portion, and details are not repeated here.
According to the air conditioner control device for the rail vehicle, the pressure information is obtained by multiplexing the existing air springs of the current rail vehicle through the pressure obtaining module, the number of passengers in each carriage is determined through the density determining module according to the pressure information returned by the air springs, the density of the passengers in each carriage is further obtained, the demand of the passengers for inputting the fresh air volume in the future period is reflected through the density of the passengers, therefore, the fresh air volume determined through the air volume determining module is more suitable for the actual needs of passengers, compared with the concentration of carbon dioxide collected only by the sensor, the device provided by the embodiment has predictability for adjusting the fresh air volume, and the problem that the fresh air volume adjustment cannot timely cause adverse effects on passenger riding experience is fundamentally solved.
Fig. 5 is a structural diagram of a rail vehicle air conditioning control device according to another embodiment of the present application, and as shown in fig. 5, the rail vehicle air conditioning control device includes: a memory 40 for storing a computer program;
and a processor 41, configured to implement the steps of the rail vehicle air conditioner control method according to the above embodiment when executing the computer program.
The rail vehicle air conditioner control device provided by the embodiment can include but is not limited to a smart phone, a tablet computer, a notebook computer or a desktop computer.
Processor 41 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and so forth. The Processor 41 may be implemented in hardware using at least one of a Digital Signal Processor (DSP), a Field-Programmable Gate Array (FPGA), and a Programmable Logic Array (PLA). The processor 41 may also include a main processor and a coprocessor, where the main processor is a processor for Processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 41 may be integrated with a Graphics Processing Unit (GPU) which is responsible for rendering and drawing the content required to be displayed by the display screen. In some embodiments, processor 41 may also include an Artificial Intelligence (AI) processor for processing computational operations related to machine learning.
Memory 40 may include one or more computer-readable storage media, which may be non-transitory. Memory 40 may also include high speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In this embodiment, the memory 40 is at least used for storing a computer program 401, wherein after being loaded and executed by the processor 41, the computer program can implement the relevant steps of a rail vehicle air conditioner control method disclosed in any one of the foregoing embodiments. In addition, the resources stored in the memory 40 may also include an operating system 402, data 403, and the like, and the storage manner may be a transient storage or a permanent storage. Operating system 402 may include Windows, unix, linux, and the like, among others. The data 403 may include, but is not limited to, a rail vehicle air conditioning control method, and the like.
In some embodiments, a rail vehicle climate control device may further include a display screen 42, an input/output interface 43, a communication interface 44, a power source 45, and a communication bus 46.
Those skilled in the art will appreciate that the configuration shown in FIG. 5 does not constitute a limitation of a rail vehicle climate control device and may include more or fewer components than those shown.
The rail vehicle air conditioner control device provided by the embodiment of the application comprises a memory and a processor, wherein when the processor executes a program stored in the memory, the following method can be realized: a rail vehicle air conditioner control method.
According to the rail vehicle air conditioner control device provided by the embodiment, the processor executes the computer program stored in the memory, so that the number of passengers in each carriage is determined according to the pressure information returned by the existing air spring of the current rail vehicle, the passenger density in each carriage is further obtained, the demand of the passenger density for inputting the fresh air volume in the future period is reflected, the determined fresh air volume can adapt to the change trend of the carbon dioxide concentration in the period, the actual needs of passengers are better met, and compared with the situation that the fresh air volume is determined only by the carbon dioxide concentration acquired by the sensor, the problem that the fresh air volume adjustment does not timely cause adverse effects on the passenger riding experience is fundamentally solved.
Finally, the application also provides a corresponding embodiment of the computer readable storage medium. The computer-readable storage medium has stored thereon a computer program which, when being executed by a processor, carries out the steps as set forth in the above-mentioned method embodiments.
It is to be understood that if the method in the above embodiments is implemented in the form of software functional units and sold or used as a stand-alone product, it can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium and executes all or part of the steps of the methods described in the embodiments of the present application, or all or part of the technical solutions. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
According to the computer readable storage medium provided by the embodiment, when the stored computer program is executed, the number of passengers in each carriage can be determined according to the pressure information returned by the existing air spring of the current railway vehicle, so that the passenger density in each carriage is obtained, and the demand of the future period of time for inputting the fresh air volume is reflected by the passenger density, so that the determined fresh air volume can adapt to the change trend of the carbon dioxide concentration in a period of time, the actual needs of passengers are better met, and compared with the situation that the fresh air volume is determined only by the carbon dioxide concentration acquired by a sensor, the problem that the fresh air volume adjustment does not timely cause adverse effects on the passenger riding experience is fundamentally solved.
The method, the device and the medium for controlling the air conditioner of the rail vehicle provided by the application are described in detail above. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A rail vehicle air conditioner control method is characterized by comprising the following steps:
acquiring pressure information of an air spring of the railway vehicle;
determining passenger density from the pressure information;
determining the fresh air volume according to the passenger density;
and controlling the air conditioner fan to input fresh air according to the fresh air quantity.
2. The rail vehicle air conditioning control method according to claim 1, further comprising:
monitoring the working states of a compressor and an air conditioning fan in an air conditioning unit;
when the working state of the compressor or the air-conditioning fan is abnormal, the running state of the compressor or the air-conditioning fan is cut off;
acquiring abnormal information of the compressor or the air conditioner fan, and calling a corresponding pre-written model to control the compressor or the air conditioner fan according to the abnormal information; wherein the pre-write model comprises different models for controlling device cooling, latency outputs, and hiccup outputs.
3. The rail vehicle air conditioning control method according to claim 2, characterized by further comprising:
acquiring video information of a rail vehicle video monitoring device;
determining the passenger density according to the video information;
correspondingly, the step of determining the fresh air volume according to the passenger density comprises the following steps:
determining the fresh air volume based on the passenger density determined from the pressure information and the passenger density determined from the video information.
4. The rail vehicle air conditioning control method according to claim 3, characterized by further comprising:
collecting the concentration of carbon dioxide in the rail vehicle through a sensor;
accordingly, determining the fresh air volume based on the passenger density determined from the pressure information and the passenger density determined from the video information comprises:
determining the fresh air volume based on the passenger density determined from the pressure information, the passenger density determined from the video information, and the carbon dioxide concentration.
5. The rail vehicle air conditioning control method according to claim 2, further comprising, when an abnormality occurs in an operating state of the compressor or the air conditioning fan:
and switching to the corresponding other air-conditioning air supply modes to control the air-conditioning unit according to the current air-conditioning air supply mode.
6. The rail vehicle air conditioning control method according to claim 4, further comprising:
if the concentration of the carbon dioxide acquired by the sensor exceeds a preset threshold value, returning first alarm information;
and if the duration time of the abnormal working state of the compressor or the air conditioner fan exceeds the preset time, returning second alarm information.
7. The rail vehicle air conditioning control method according to any one of claims 1 to 6, characterized by further comprising:
and acquiring the state information of each device in the air conditioning unit, and sending the state information to a display screen for displaying.
8. A rail vehicle air conditioning control apparatus, comprising:
the pressure acquisition module is used for acquiring pressure information of an air spring of the railway vehicle;
a density determination module for determining a passenger density based on the pressure information;
the air volume determining module is used for determining fresh air volume according to the passenger density;
and the fresh air control module is used for controlling the air conditioner fan to input fresh air according to the fresh air quantity.
9. A rail vehicle air conditioning control apparatus, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the rail vehicle air conditioning control method according to any one of claims 1 to 7 when executing said computer program.
10. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps of the rail vehicle air conditioning control method according to one of claims 1 to 7.
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| CN202211620312.3A CN115817548A (en) | 2022-12-15 | 2022-12-15 | Rail vehicle air conditioner control method, device and medium thereof |
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| CN202211620312.3A CN115817548A (en) | 2022-12-15 | 2022-12-15 | Rail vehicle air conditioner control method, device and medium thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117184158A (en) * | 2023-10-26 | 2023-12-08 | 北京城市轨道交通咨询有限公司 | Air purification method and air purification device in rail transit vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117184158A (en) * | 2023-10-26 | 2023-12-08 | 北京城市轨道交通咨询有限公司 | Air purification method and air purification device in rail transit vehicle |
| CN117184158B (en) * | 2023-10-26 | 2024-04-26 | 北京城市轨道交通咨询有限公司 | Air purification method and air purification device in rail transit vehicle |
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