Automatic spraying control system and method for train dust suppression station

Abstract

The invention discloses an automatic spraying control system for a train dust suppression station. The automatic spraying control system comprises a position detection module, a main control module, a limiting feedback module and a spraying module. When the system works and the position detection module detects that the position relation between a train compartment and a spraying area is changed, a trigger signal is sent to the main control module, and the main control module generates a corresponding first control signal to control the spraying module to start or stop spraying, so that automatic starting and stopping control of spraying is realized; in the working process of the spraying equipment, the limiting feedback module can monitor the change of the spraying position of the train compartment, correspondingly generate a feedback signal and send the feedback signal to the main control module, and the main control module correspondingly generates a second control signal to control the spraying module to pause or restart spraying, so that complicated work of manual operation is avoided, and the working efficiency is improved. And the overall spraying effect is improved.

Description

Technical Field

[0001] The invention relates to the field of dust suppression spraying systems and automatic control, and in particular to an automatic spraying control system and method for a train dust suppression station. Background Art

[0002] In recent years, in order to achieve the purpose of environmental protection, dust suppression stations have been widely installed in various application scenarios. Among them, since trains are affected by factors such as wind during travel, they will generate a lot of dust, which seriously pollutes the air. Therefore, the installation of train dust suppression stations is particularly important. Train dust suppression stations are generally set up along the railway line, and use special dust suppression devices to spray dust suppressants on the surface of train carriages loaded with goods to form a layer of solidified film on the surface of the train. This solidified film can prevent dust from flying during transportation, help reduce dust pollution along the railway line, and improve air quality.

[0003] However, the spraying equipment and systems in the existing train dust suppression stations need to be manually controlled and operated, and there are many problems with manual control and operation. First, manual operation of the spraying equipment and systems requires a high learning cost and a lot of professional skills training, which means that the work of the dust suppression station requires a lot of labor costs; secondly, manual operation requires frequent control of water pumps, solenoid valves, rollers and other devices, which has slow operation speed and low efficiency. In addition, the spraying consistency is low and the spraying range is limited each time the dust suppressant is sprayed, which leads to the dust suppression effect not meeting expectations and poor dust suppression effect.

[0004] This type of spraying equipment and system that requires manual control and operation will greatly reduce the dust suppression effect of the train dust suppression station on the train, and cannot achieve the purpose of preventing dust pollution and achieving environmental protection.

[0005] Therefore, there is a need to provide an automatic spraying control device and method for use in train dust suppression stations, which can automatically control the spraying equipment to spray dust suppressants and effectively improve the spraying effect. Summary of the invention

[0006] In order to solve the problems raised in the above background technology, the present invention provides an automatic spraying control system and method for a train dust suppression station, which solves the problems in the current dust suppression spraying system and automatic control system field that the spraying equipment and system need to be manually controlled and operated, and the dust suppression liquid spraying effect is not good.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] In a first aspect, an automatic spraying control system for a train dust suppression station, wherein:

[0009] A position detection module, used to obtain the positional relationship between the train carriage and the spraying area, and generate a trigger signal and send it to the main control module when the positional relationship between the train carriage and the spraying area changes;

[0010] A main control module, used for responding to the trigger signal output by the position detection module to generate a first control signal and send it to the spraying module;

[0011] a spraying module, configured to respond to a first control signal output by the main control module to start or end spraying of dust suppressant on the train compartment;

[0012] A limit feedback module, used for monitoring the spraying position of the train carriage when the spraying module starts working, and sending a corresponding feedback signal to the main control module when the spraying position changes, wherein the first feedback signal of the train carriage includes the hook block area and the carriage body area between the train carriages, and when the train carriage is in the hook block area between the train carriages, it is used to indicate that the hook block between the train carriages enters the spraying area, and when the train carriage is in the carriage body area, it is used to indicate that the carriage body of the train carriage enters the spraying area;

[0013] The main control module is further used to respond to the feedback signal output by the limit feedback module to generate a second control signal and send it to the spray module;

[0014] The spraying module is also used to respond to the second control signal output by the main control module to pause or restart the spraying of the dust suppressant on the train compartment.

[0015] Based on the above automatic spraying control system for train dust suppression station, in a feasible design,

[0016] The trigger signal includes a first trigger signal and a second trigger signal, and the first control signal includes a spraying start control signal and a spraying end control signal, wherein the first trigger signal corresponds to the spraying start control signal, and the second trigger signal corresponds to the spraying end control signal;

[0017] Wherein, the position detection module comprises: a position sensing unit;

[0018] A position sensing unit, for monitoring the position of the train carriage, and generating a first trigger signal to send to the main control module when the train carriage enters the spraying area, and generating a second trigger signal to send to the main control module when the train carriage leaves the spraying area;

[0019] A main control module, used for responding to the first trigger signal or the second trigger signal output by the position sensing unit to generate a spraying start control signal or a spraying end control signal and sending it to the spraying module;

[0020] The spraying module is used to respond to the spraying start control signal or the spraying end control signal output by the main control module to start or end the spraying of dust suppressant on the train compartment.

[0021] Based on the above automatic spraying control system for train dust suppression station, in a feasible design,

[0022] The feedback signal includes a first feedback signal and a second feedback signal, and the second control signal includes a spraying pause control signal and a spraying restart control signal, wherein the first feedback signal corresponds to the spraying pause control signal, and the second feedback signal corresponds to the spraying restart control signal;

[0023] Wherein, the limit feedback module includes: a limit switch;

[0024] A limit switch, configured to generate a first feedback signal to the main control module when detecting that the spraying position of the train carriage changes from the carriage body area to the hook stop area between the train carriages, and to generate a second feedback signal to the main control module when detecting that the carriage body area changes to the hook stop area between the train carriages;

[0025] A main control module, used for responding to the first feedback signal or the second feedback signal output by the limit switch to generate a spraying pause control signal or a spraying restart control signal and send it to the spraying module;

[0026] The spraying module is used to respond to the spraying suspension control signal or the spraying restart control signal output by the main control module to suspend or restart the spraying of the dust suppressant on the train compartment.

[0027] Based on the above automatic spraying control system for train dust suppression station, in a feasible design,

[0028] A spraying module, comprising a driving unit and a spraying unit;

[0029] a driving unit, configured to respond to a first control signal or a second control signal output by the main control module, and drive the spraying unit to spray according to the first control signal or the second control signal;

[0030] The spraying unit, as the spraying end of the spraying module, is arranged facing the train carriage and is used for spraying dust suppressant into the train carriage.

[0031] Based on the above automatic spraying control system for train dust suppression station, in a feasible design,

[0032] A drive unit, including a drive motor, a transmission mechanism and an electric control valve;

[0033] A driving motor, fixedly connected to the transmission connection end of the transmission mechanism, and used to drive the transmission mechanism;

[0034] A transmission mechanism, driven by the driving motor, for transmitting and controlling the spraying unit to spray;

[0035] an electric control valve, electrically connected to the drive motor, for performing a closing action in response to the spray start control signal or the spray restart control signal to switch on the power supply to the drive motor;

[0036] The electric control valve is also used to respond to the spraying end control signal or the spraying pause control signal to perform a disconnection action to disconnect the power supply of the driving motor.

[0037] Based on the above automatic spraying control system for train dust suppression station, in a feasible design,

[0038] The spraying module also includes a heat preservation and heating unit;

[0039] The heat preservation and heating unit is electrically connected to the main control module, and is used to start in response to the spraying start control signal to maintain the temperature of the dust suppressant in the spraying unit, and is used to stop working in response to the spraying end control signal.

[0040] Based on the above automatic spraying control system for train dust suppression station, in a feasible design,

[0041] Main control module, including console and PLC;

[0042] A control console, used to send a spraying adjustment instruction to the PLC, wherein the spraying adjustment instruction includes a spraying amount instruction, a spraying area instruction, a spraying time instruction and a spraying speed instruction;

[0043] The PLC is used to respond to the trigger signal output by the position detection module to generate a first control signal, and is also used to receive the spraying adjustment instruction output by the console, and generate a third control signal based on the spraying adjustment instruction to send the third control signal to the spraying module.

[0044] Based on the above automatic spraying control system for train dust suppression station, in a feasible design,

[0045] PLC, including PID controller and image register;

[0046] A PID controller, used for performing error calculation and realizing coupling control according to the trigger signal and the spraying adjustment instruction;

[0047] The image register is used to store the trigger signal and the spraying adjustment instruction, and after the storage is completed and when the spraying module is spraying, stop storing any received instructions.

[0048] Based on the above automatic spraying control system for train dust suppression station, in a feasible design,

[0049] The main control module is also electrically connected to a display unit;

[0050] The display unit is used to obtain the trigger signal and the spray adjustment instruction stored in the image register and display them visually, and is also used to obtain the first control signal, the second control signal and the third control signal issued by the PLC and display them visually.

[0051] In a second aspect, an automatic spraying control method for a train dust suppression station is implemented based on a main control module in an automatic spraying control system for a train dust suppression station as described in any one of the above items, wherein:

[0052] The method comprises the following steps:

[0053] Acquire a trigger signal output by the position detection module, and generate a first control signal based on the trigger signal; wherein the trigger signal is generated by the position detection module when detecting a change in the positional relationship between the train carriage and the spraying area;

[0054] sending a first control signal to the spraying module to control the spraying module to start or end spraying of dust suppressant on the train compartment;

[0055] During the spraying process, a feedback signal output by the limit feedback module is obtained, and a second control signal is correspondingly generated based on the feedback signal; wherein the feedback signal is generated when the limit feedback module detects a change in the spraying position of the train compartment when the spraying module starts working, wherein the spraying position of the train compartment includes a hook block area between train compartments and a compartment body area;

[0056] A second control signal is sent to the spray module to control the spray module to pause or restart the spraying operation on the train carriage.

[0057] Beneficial effects:

[0058] (1) The automatic spraying control system for a train dust suppression station disclosed in the present invention comprises a position detection module, a main control module, a limit feedback module and a spraying module; when the system is working, when the position detection module detects that the position relationship between the train car and the spraying area has changed, it will send a trigger signal to the main control module, the main control module will receive and process the trigger signal and generate a corresponding first control signal, and send it to the spraying module, the spraying module responds to the first control signal and starts or stops spraying, thereby realizing automatic start and stop control of the spraying; and during the operation of the spraying equipment, the limit feedback module will monitor the change of the spraying position of the train car, and generate a feedback signal accordingly to send to the main control module, the main control module correspondingly generates a second control signal to control the spraying module to pause or restart the spraying, so as to ensure that when the spraying position of the train car changes from the car body area to the hook area between the train cars, the control system can automatically pause the spraying, and restart it when it enters the car body area, thereby avoiding the complicated work of manual operation and improving the overall spraying effect.

[0059] (2) The automatic spraying control method for a train dust suppression station disclosed in the present invention is implemented based on the main control module in the automatic spraying control system for a train dust suppression station, and specifically comprises the following steps: first, a trigger signal output by the position detection module is obtained, and based on the trigger signal, a first control signal is generated, and the first control signal is sent to the spraying module to control the spraying module to start spraying the train carriage, and spraying is started at this time; then, a feedback signal output by the limit feedback module is obtained, and based on the feedback signal, a second control signal is correspondingly generated, and the second control signal is sent to the spraying module to control the spraying module to suspend spraying the train carriage, and when the feedback signal output by the limit feedback module is obtained next time, a second control signal is correspondingly generated based on the feedback signal, and the second control signal is sent to the spraying module to control the spraying module to restart spraying the train carriage; the suspension and restart control of spraying is realized by feedback control, so that the spraying effect is better and more in line with actual needs; the trigger signal output by the position detection module is obtained again, and based on the trigger signal, a first control signal is generated, and the first control signal is sent to the spraying module to control the spraying module to stop spraying the train carriage. The entire spraying control is executed by the spraying system itself, completely avoiding various problems caused by manual control and operation. In addition, due to the absence of the limitations of manual spraying, better spraying effects are achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 Schematic diagram of the functional structure of the automatic spraying control system in Example 1 of the present invention;

[0061] Figure 2 Schematic diagram of the process of the residual material detection method in Example 2 of the present invention. DETAILED DESCRIPTION

[0062] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0063] It should be understood that although the terms first, second, etc. may be used herein to describe various units, these units should not be limited by these terms. These terms are only used to distinguish one unit from another unit. For example, a first unit can be referred to as a second unit, and similarly, a second unit can be referred to as a first unit without departing from the scope of the exemplary embodiments of the present invention.

[0064] It should be understood that the term "and / or" that may appear in this article is merely a description of the association relationship between associated objects, indicating that three relationships may exist. For example, A and / or B can represent three situations: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" that may appear in this article describes another type of association object relationship, indicating that two relationships may exist. For example, A / and B can represent two situations: A exists alone, and A and B exist alone. In addition, the character " / " that may appear in this article generally indicates that the previous and next associated objects are in an "or" relationship.

[0065] Embodiment 1:

[0066] like Figure 1 As shown, the present embodiment provides an automatic spraying control system for a train dust suppression station, which adopts a position detection module to replace manual monitoring and identification of train carriages. When the train carriage changes and enters the spraying area, the position detection module will send a corresponding trigger signal to the main control module, thereby realizing automatic start-up of the spraying system without the need for manual intervention, and also through the feedback adjustment control of the limit feedback module, it realizes accurate identification of the train carriages of the entire train, thereby improving the overall spraying effect.

[0067] The present embodiment provides an automatic spraying control system for a train dust suppression station, including a position detection module, a main control module, a limit feedback module and a spraying module. Among them, the position detection module is used to sense and monitor the position relationship between the train carriage and the spraying area. When the position relationship between the train carriage and the spraying area changes, the position detection module responds and sends a corresponding trigger signal to the main control module. This trigger signal includes two types. When the position relationship between the train carriage and the spraying area is: an intersection state occurs (the train enters the spraying area), the trigger signal is used to point to the start of spraying; when the position relationship between the train carriage and the spraying area is: the intersection state ends (the train leaves the spraying area), the trigger signal is used to point to the end of spraying.

[0068] The limit feedback module is used to construct a feedback adjustment structure. It is started after the spraying module starts working. It monitors the changes in the spraying position of the train car in real time. When the spraying position of the train car changes, the limit feedback module responds and sends a corresponding feedback signal to the main control module. This feedback signal includes two types. When the spraying position of the train car changes from the car body area to the hook area between the train cars, the feedback signal is used to indicate the suspension of spraying. When the spraying position of the train car changes from the hook area between the train cars to the car body area, the feedback signal is used to indicate the restart of spraying.

[0069] The main control module, as the control center for issuing control signals, is electrically connected to other modules and serves as a receiving end to receive the trigger signal issued by the position detection module and the feedback signal issued by the limit feedback module, and respond accordingly. It generates a first control signal when it receives the trigger signal and generates a second control signal when it receives the feedback signal and sends it to the spraying module.

[0070] The spraying module, as the execution body of the spraying of this system, is controlled by the main control module. After receiving the first control signal or the second control signal sent by the main control module, the spraying module starts (ends) spraying or pauses (restarts) spraying accordingly. Its work is completely controlled by the main control module, and a set of work processes from starting spraying to ending spraying can be fully realized without manual intervention. It solves various problems caused by current manual spraying.

[0071] It should be noted that the spraying area mentioned in this embodiment is set based on the mechanical properties of the spraying module. When the spraying device in different spraying modules is used, the spraying area is also different. In the actual application scenario, it can be obtained according to the specific device selected, and it can be realized by writing it into the main control module as the basic value. The spraying device can be any existing spraying device that can realize the dust suppression agent spraying function requirements of the train dust suppression station. Therefore, the specific device model required here is not limited, as long as it can support the automatic control of this system.

[0072] The present embodiment provides an automatic spraying control system for a train dust suppression station. As a preferred implementation, the trigger signal includes a first trigger signal and a second trigger signal, and the first control signal includes a spraying start control signal and a spraying end control signal, wherein the first trigger signal corresponds to the spraying start control signal, and the second trigger signal corresponds to the spraying end control signal;

[0073] The position detection module includes a position sensing unit; the position sensing unit can select a sensor with distance sensing capability, such as a laser distance measuring sensor, a photoelectric sensor or a magnetic sensor.

[0074] A position sensing unit, for monitoring the position of the train carriage, and generating a first trigger signal when the train carriage enters the spraying area and sending it to the main control module, and generating a second trigger signal when the train carriage leaves the spraying area and sending it to the main control module;

[0075] A main control module, used to respond to the first trigger signal or the second trigger signal output by the position sensing unit, and based on the first trigger signal or the second trigger signal, generate a corresponding spray start control signal or a spray end control signal, and send it to the spray module;

[0076] The spraying module is used to respond to the spraying start control signal or the spraying end control signal output by the main control module, control the spraying end to start spraying on the train carriage according to the spraying start control signal, and control the spraying end to stop spraying on the train carriage according to the spraying end control signal.

[0077] The present embodiment provides an automatic spraying control system for a train dust suppression station. As a preferred implementation, the feedback signal includes a first feedback signal and a second feedback signal, and the second control signal includes a spraying pause control signal and a spraying restart control signal, wherein the first feedback signal corresponds to the spraying pause control signal, and the second feedback signal corresponds to the spraying restart control signal;

[0078] The limit feedback module includes a limit switch; the limit switch can be implemented by a sensing device with a certain position detection capability, such as a mechanical limit switch, a magnetic limit switch or a photoelectric limit switch.

[0079] A limit switch for monitoring the spraying position and generating a first feedback signal to the main control module when the spraying position of the train carriage changes from the carriage body area to the hook stop area between the train carriages, and generating a second feedback signal to the main control module when the spraying position changes from the carriage body area to the hook stop area between the train carriages;

[0080] A main control module, used to respond to the first feedback signal or the second feedback signal output by the limit switch, and based on the first feedback signal or the second feedback signal, generate a corresponding spraying pause control signal or a spraying restart control signal, and send it to the spraying module;

[0081] The spraying module is used to respond to the spraying pause control signal or the spraying restart control signal output by the main control module, and control the spraying end to pause spraying on the train carriage according to the spraying pause control signal, and control the spraying end to restart spraying on the train carriage according to the spraying restart control signal.

[0082] This embodiment provides an automatic spraying control system for a train dust suppression station. As a preferred implementation, the spraying module includes a driving unit and a spraying unit;

[0083] A driving unit, used to respond to a first control signal or a second control signal output by the main control module, and drive the spraying unit to spray according to the first control signal or the second control signal;

[0084] The spraying unit, as the spraying end of the spraying module, is arranged facing the train carriage and is used to spray dust suppressant on the train carriage. The spraying unit can be preferably arranged as a swing arm spraying device, wherein the control of the swing arm is also regulated by the control signal of the main control module, and coupled with the start, end, pause and restart of the spraying, so as to have better spraying capacity and spraying coverage, and further improve the spraying effect of the system.

[0085] A drive unit, including a drive motor, a transmission mechanism and an electric control valve;

[0086] The drive motor is fixedly connected to the transmission connection end of the transmission mechanism and is used to drive the transmission mechanism. As the drive end of the spray unit, the drive motor can be selected according to the specific spray device selected for the spray unit. Generally, a stepper motor or servo motor with better mechanical properties is given priority.

[0087] The transmission mechanism is driven by the driving motor and is used to drive and control the spraying unit to spray; in order to achieve a larger spraying area and improve the spraying efficiency, the transmission mechanism can preferably be implemented by a hydraulic transmission mechanism.

[0088] The electric control valve is electrically connected to the drive motor, and is used to respond to the spray start control signal or the spray restart control signal and perform a closing action to control the drive motor to be powered on, and is also used to respond to the spray end control signal or the spray pause control signal and perform a disconnection action to control the drive motor to be powered off. The electric control valve here can be a solenoid valve.

[0089] The spraying module also includes a heat preservation and heating unit;

[0090] The heat preservation and heating unit is arranged corresponding to the spraying unit and is electrically connected to the main control unit, and is used to start working in response to the spraying start control signal, maintain the temperature of the dust suppressant in the spraying unit, and stop working in response to the spraying stop control signal. The heat preservation and heating unit can be a heater with heating and temperature maintenance functions.

[0091] This embodiment provides an automatic spraying control system and detection method for a train dust suppression station, as a preferred implementation, the main control module includes a console and a PLC;

[0092] A control console, used for sending a spraying adjustment instruction to the PLC, wherein the spraying adjustment instruction includes a spraying amount instruction, a spraying area instruction, a spraying time instruction and a spraying speed instruction;

[0093] The PLC is used to respond to the trigger signal output by the position detection module and generate a first control signal accordingly. It is also used to receive various spraying adjustment instructions output by the control console and generate a third control signal accordingly, wherein the third control signal is used to adjust the spraying module accordingly according to the various spraying adjustment instructions.

[0094] PLC, including PID controller and image register;

[0095] PID controller, used to calculate the error and realize coupling control according to the trigger signal and any spraying adjustment instruction;

[0096] The image register is used to store the trigger signal and all spraying adjustment instructions. After storing, when the spraying module is spraying, it stops storing any received instructions. This ensures that the spraying from start to stop is not affected by external instructions, ensuring the spraying consistency from start to stop.

[0097] The main control module is also electrically connected to a display unit;

[0098] The display unit is used to obtain the trigger signal and all spraying adjustment instructions stored in the image register and display them accordingly, and is also used to obtain the first control signal, the second control signal and the third control signal sent by the PLC and display them accordingly. It is convenient for the staff to record the relevant information of the train and the system control information.

[0099] Embodiment 2:

[0100] like Figure 2 As shown, the automatic spraying control method for a train dust suppression station provided in this embodiment is implemented based on the main control module in the automatic spraying control system for a train dust suppression station in any one of Embodiment 1. The automatic spraying control method provided in this embodiment may include, but is not limited to, the following steps:

[0101] S100. Obtain a trigger signal output by the position detection module, and generate a first control signal based on the trigger signal; wherein the trigger signal is generated when the position detection module detects a change in the positional relationship between the train carriage and the spraying area.

[0102] S200. Send the trigger signal to the spraying module to control the spraying module to start or end the spraying of dust suppressant on the train compartment.

[0103] In steps S100 and S200, the trigger signal received for the first time here is issued when the position detection module detects that the position relationship between the train car and the spraying area has intersected (the train enters the spraying area), and the corresponding first control signal is used to control the spraying module to start spraying. At this time, the automatic spraying control system begins to enter the working state; the trigger signal received again is issued when the position detection module detects that the position relationship between the train car and the spraying area ends the intersection state (the train leaves the spraying area), and the corresponding first control signal is used to control the spraying module to end spraying. At this time, all modules in the automatic spraying control system except the position detection module stop working.

[0104] S300. During the spraying process, a feedback signal output by the limit feedback module is obtained, and a second control signal is correspondingly generated based on the feedback signal; wherein the feedback signal is generated by the limit feedback module when the spraying module starts to work and detects that the spraying position of the train car has changed, wherein the spraying position of the train car includes the hook area between the train cars and the car body area.

[0105] S400. Send a second control signal to the spraying module to control the spraying module to pause or restart the spraying operation on the train carriage.

[0106] In steps S300 and S400, the first feedback signal received here is issued when the limit feedback module detects that the spraying position of the train car has changed to the hook area between the train cars, and the corresponding second control signal is used to control the spraying module to suspend spraying. The feedback signal received again is issued when the limit feedback module detects that the spraying position of the train car has changed to the car body area, and the corresponding second control signal is used to control the spraying module to restart spraying. This is a cyclic process.

[0107] When the entire train passes through the dust suppression station, a hook area will appear between the carriages. In order to ensure the effective spraying of the dust suppressant, spraying should not be carried out in the hook area between the train carriages. Therefore, during the passage of the train, the carriage body area and the hook area will repeatedly appear at the position corresponding to the spraying end of the spraying module. When the carriage body area appears at the position corresponding to the spraying end of the spraying module, it can be defined as the carriage body area. When the hook area between the train carriages appears at the position corresponding to the spraying end of the spraying module, it can be defined as the hook area. These two states will appear alternately, so the spray module will also correspondingly suspend and restart spraying alternately. This process ends until the entire train leaves the spraying area.

[0108] Among them, the trigger signal is used to characterize the change in the position relationship between the train car and the spraying area, and the first control signal is used to control the spraying module to start or end spraying on the train car; the feedback signal is used to characterize the change in the spraying position of the train car, and the second control signal is used to control the spraying module to pause or restart spraying on the train car.

[0109] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic spraying control system for a train dust suppression station, characterized in that: A position detection module, used to obtain the positional relationship between the train carriage and the spraying area, and generate a trigger signal and send it to the main control module when the positional relationship between the train carriage and the spraying area changes; A main control module, used for responding to the trigger signal output by the position detection module to generate a first control signal and send it to the spraying module; a spraying module, configured to respond to a first control signal output by the main control module to start or end spraying of dust suppressant on the train compartment; A limit feedback module, used for monitoring the spraying position of the train carriage when the spraying module starts working, and sending a corresponding feedback signal to the main control module when the spraying position changes, wherein the spraying position of the train carriage includes the hook block area between the train carriages and the carriage body area; The main control module is further used to respond to the feedback signal output by the limit feedback module to generate a second control signal and send it to the spray module; The spraying module is also used to respond to the second control signal output by the main control module to pause or restart the spraying of the dust suppressant on the train compartment.

2. The automatic spraying control system for a train dust suppression station according to claim 1 is characterized in that: The trigger signal includes a first trigger signal and a second trigger signal, and the first control signal includes a spraying start control signal and a spraying end control signal, wherein the first trigger signal corresponds to the spraying start control signal, and the second trigger signal corresponds to the spraying end control signal; Wherein, the position detection module comprises: a position sensing unit; A position sensing unit, for monitoring the position of the train carriage, and generating a first trigger signal to send to the main control module when the train carriage enters the spraying area, and generating a second trigger signal to send to the main control module when the train carriage leaves the spraying area; A main control module, used for responding to the first trigger signal or the second trigger signal output by the position sensing unit to generate a spraying start control signal or a spraying end control signal and sending it to the spraying module; The spraying module is used to respond to the spraying start control signal or the spraying end control signal output by the main control module to start or end the spraying of dust suppressant on the train compartment.

3. The automatic spraying control system for a train dust suppression station according to claim 2 is characterized in that: The feedback signal includes a first feedback signal and a second feedback signal, and the second control signal includes a spraying pause control signal and a spraying restart control signal, wherein the first feedback signal corresponds to the spraying pause control signal, and the second feedback signal corresponds to the spraying restart control signal; Wherein, the limit feedback module includes: a limit switch; A limit switch, configured to generate a first feedback signal to the main control module when detecting that the spraying position of the train carriage changes from the carriage body area to the hook stop area between the train carriages, and to generate a second feedback signal to the main control module when detecting that the carriage body area changes to the hook stop area between the train carriages; A main control module, used for responding to the first feedback signal or the second feedback signal output by the limit switch to generate a spraying pause control signal or a spraying restart control signal and send it to the spraying module; The spraying module is used to respond to the spraying suspension control signal or the spraying restart control signal output by the main control module to suspend or restart the spraying of the dust suppressant on the train compartment.

4. The automatic spraying control system for a train dust suppression station according to claim 3 is characterized in that: A spraying module, comprising a driving unit and a spraying unit; a driving unit, configured to respond to a first control signal or a second control signal output by the main control module, and drive the spraying unit to spray according to the first control signal or the second control signal; The spraying unit, as the spraying end of the spraying module, is arranged facing the train carriage and is used for spraying dust suppressant into the train carriage.

5. The automatic spraying control system for a train dust suppression station according to claim 4 is characterized in that: A drive unit, including a drive motor, a transmission mechanism and an electric control valve; A driving motor, fixedly connected to the transmission connection end of the transmission mechanism, and used to drive the transmission mechanism; A transmission mechanism, driven by the driving motor, for transmitting and controlling the spraying unit to spray; an electric control valve, electrically connected to the drive motor, for performing a closing action in response to the spray start control signal or the spray restart control signal to switch on the power supply to the drive motor; The electric control valve is also used to respond to the spraying end control signal or the spraying pause control signal to perform a disconnection action to disconnect the power supply of the driving motor.

6. The automatic spraying control system for a train dust suppression station according to claim 4, characterized in that: The spraying module also includes a heat preservation and heating unit; The heat preservation and heating unit is electrically connected to the main control module, and is used to start in response to the spraying start control signal to maintain the temperature of the dust suppressant in the spraying unit, and is used to stop working in response to the spraying end control signal.

7. The automatic spraying control system for a train dust suppression station according to claim 1, characterized in that: Main control module, including console and PLC; A control console, used to send a spraying adjustment instruction to the PLC, wherein the spraying adjustment instruction includes a spraying amount instruction, a spraying area instruction, a spraying time instruction and a spraying speed instruction; The PLC is used to respond to the trigger signal output by the position detection module to generate a first control signal, and is also used to receive the spraying adjustment instruction output by the console, and generate a third control signal based on the spraying adjustment instruction to send the third control signal to the spraying module.

8. The automatic spraying control system for a train dust suppression station according to claim 7, characterized in that: PLC, including PID controller and image register; A PID controller, used for performing error calculation and realizing coupling control according to the trigger signal and the spraying adjustment instruction; The image register is used to store the trigger signal and the spraying adjustment instruction, and after the storage is completed and when the spraying module is spraying, stop storing any received instructions.

9. The automatic spraying control system for a train dust suppression station according to claim 8, characterized in that: The main control module is also electrically connected to a display unit; The display unit is used to obtain the trigger signal and the spray adjustment instruction stored in the image register and display them visually, and is also used to obtain the first control signal, the second control signal and the third control signal issued by the PLC and display them visually.

10. An automatic spraying control method for a train dust suppression station, implemented based on the main control module in the automatic spraying control system for a train dust suppression station according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: Acquire a trigger signal output by the position detection module, and generate a first control signal based on the trigger signal; wherein the trigger signal is generated by the position detection module when detecting a change in the positional relationship between the train carriage and the spraying area; sending a first control signal to the spraying module to control the spraying module to start or end spraying of dust suppressant on the train compartment; During the spraying process, a feedback signal output by the limit feedback module is obtained, and a second control signal is correspondingly generated based on the feedback signal; wherein the feedback signal is generated when the limit feedback module detects a change in the spraying position of the train compartment when the spraying module starts working, wherein the spraying position of the train compartment includes a hook block area between train compartments and a compartment body area; A second control signal is sent to the spray module to control the spray module to pause or restart the spraying operation on the train carriage.

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