A cleaning vehicle and a method of controlling the same

Abstract

This invention belongs to the field of cleaning devices and discloses a sweeper truck and its operation control method. The sweeper truck includes a water storage structure and a spraying structure; the water storage structure includes a wastewater tank and a clean water tank; the spraying structure includes a spraying flow path, and both the wastewater tank and the clean water tank are connected to the spraying flow path through a water supply branch. A spraying component is provided at the end of the spraying flow path. In the sweeper truck provided by this invention, clean water can be stored simultaneously through the wastewater tank and the clean water tank. When flushing is required, the clean water in both the wastewater tank and the clean water tank is used simultaneously, increasing the clean water capacity of the existing sweeper truck. After the clean water is used up, the sweeper truck can continue to perform sweeping and washing functions, storing externally collected wastewater in the wastewater tank. This allows the sweeper truck to perform multiple cleaning functions simultaneously without the need for multiple different vehicles, saving vehicle costs.

Description

Technical Field

[0001] This invention relates to the field of cleaning equipment technology, and in particular to a sweeper truck and its operation control method. Background Technology

[0002] Existing water sprinkler trucks and sweeper trucks have limited functions and are expensive. Water sprinkler trucks spray clean water onto the road surface, and then sweeper trucks wash and clean the stains and absorb them into the sewage tank.

[0003] However, water sprinkler trucks and sweeper trucks have largely redundant functions and structures, resulting in low utilization rates of their wastewater and clean water tanks. Equipping them with separate water sprinkler trucks and sweeper trucks would increase equipment purchase and maintenance costs. In summary, existing sweeper trucks are functionally limited and inconvenient to use. Summary of the Invention

[0004] The main objective of this invention is to provide a sweeper truck and its operation control method, aiming to solve the problem that existing sweeper trucks have limited functions and are inconvenient to use.

[0005] To achieve the above objectives, the present invention provides a sweeper truck, comprising:

[0006] Water storage structures, including wastewater tanks and clean water tanks; and,

[0007] The spraying structure includes a spraying flow path, wherein both the wastewater tank and the clean water tank are connected to the spraying flow path via a water supply branch, and a spraying component is provided at the end of the spraying flow path.

[0008] Optionally, the wastewater tank is connected to the clean water tank via a connecting pipe, and a first on / off valve is provided on the connecting pipe; and / or,

[0009] A second on / off valve is installed on the water supply branch connected to the sewage tank; and / or,

[0010] A third on / off valve is installed on the water supply branch line connected to the clean water tank.

[0011] Optionally, a filter may also be provided in the spray path; and / or,

[0012] A water pump is also installed in the spray path.

[0013] Optionally, the spraying assembly includes multiple nozzles arranged in parallel.

[0014] The present invention also provides an operation control method for a sweeper truck, based on any one of the sweeper trucks described above, the operation control method for the sweeper truck comprising the following steps:

[0015] Determine the cleaning mode of the sweeper truck;

[0016] The first on / off valve, the second on / off valve, the third on / off valve, the water pump, and the spraying assembly are controlled according to the cleaning mode.

[0017] Optionally, the cleaning mode includes a cleaning operation mode;

[0018] The control of the first on / off valve, the second on / off valve, the third on / off valve, the water pump, and the spraying assembly based on the cleaning mode includes:

[0019] The water pump is controlled to operate, and the first, second, and third on / off valves are controlled to open. The spraying assembly is for cleaning spraying.

[0020] Optionally, the cleaning mode includes a sweeping and washing operation mode;

[0021] The control of the first on / off valve, the second on / off valve, the third on / off valve, the water pump, and the spraying assembly based on the cleaning mode includes:

[0022] The water pump is controlled to operate, and the first and second on / off valves are controlled to close, while the third on / off valve is opened. The spraying assembly is for sweeping and washing spraying.

[0023] Optionally, the cleaning mode includes a hybrid operation mode;

[0024] The control of the first on / off valve, the second on / off valve, the third on / off valve, the water pump, and the spraying assembly based on the cleaning mode includes:

[0025] Obtain the first real-time water level in the wastewater tank and the second real-time water level in the clean water tank;

[0026] After determining the switching water level, the first on / off valve, the second on / off valve, the third on / off valve, the water pump, and the spraying assembly are controlled according to the relationship between the first real-time water level, the second real-time water level, and the switching water level.

[0027] Optionally, when the switching water level is within the wastewater tank;

[0028] The control of the first on / off valve, the second on / off valve, the third on / off valve, the water pump, and the spraying assembly based on the relationship between the first real-time water level, the second real-time water level, and the switching water level includes:

[0029] When the first real-time water level is greater than the switching water level, the water pump is controlled to start, and the second on / off valve is controlled to open, while the first on / off valve and the third on / off valve are closed, and the spraying assembly is for cleaning spraying.

[0030] When the first real-time water level is less than or equal to the switching water level, the water pump is controlled to start, and the third on / off valve is controlled to open, while the first and second on / off valves are closed. The spraying assembly is for washing and sweeping spraying.

[0031] Optionally, when the switching water level is within the clean water tank;

[0032] The control of the first on / off valve, the second on / off valve, the third on / off valve, the water pump, and the spraying assembly based on the relationship between the real-time water level and the switching water level includes:

[0033] When the second real-time water level is greater than the switching water level, the water pump is controlled to start, and the second on / off valve is controlled to open, while the first on / off valve and the third on / off valve are closed, until the first real-time water level in the sewage tank is lower than the working water level, then the second on / off valve and the first on / off valve are switched to close, and the three on / off valves are opened, and the spraying component is used for cleaning spraying.

[0034] When the real-time water level is less than or equal to the switching water level, the water pump is controlled to start, and the third on / off valve is controlled to open, while the first and second on / off valves are closed. The spraying assembly is for washing and sweeping spraying.

[0035] Optionally, the total water consumption for switching water levels satisfies the following relationship:

[0036]

[0037] Wherein, the V 水位 V is the total water consumption for switching water levels. 污 V1 is the total volume of sewage in the sewage tank, and V is the cleaning usage rate. 清 V2 is the total clean water volume of the clean water tank, and V2 is the sweeping and washing rate.

[0038] When the V 水位 Greater than V 污 At that time, the water level being switched is within the clean water tank;

[0039] When the V 水位 Less than or equal to V 污 At that time, the water level being switched is within the wastewater tank.

[0040] In the sweeper truck provided by this invention, both the wastewater tank and the clean water tank are connected to the spray flow path, eliminating the need for major modifications to existing sweeper trucks. Clean water can be stored simultaneously through both the wastewater tank and the clean water tank. When flushing is required, the clean water in both tanks is used simultaneously, increasing the clean water capacity of the existing sweeper truck. After the clean water is used up, the sweeper truck can continue to perform sweeping and washing functions, storing externally collected wastewater in the wastewater tank. This allows the sweeper truck to perform multiple cleaning functions simultaneously without the need for multiple different vehicles, saving vehicle costs. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the connection structure of the liquid flow path of the sweeper provided in the embodiment of the present invention;

[0042] Figure 2 This is a flowchart of the operation control method for a sweeper truck provided in the embodiments of the present invention.

[0043] Explanation of icon numbers:

[0044]

[0045]

[0046] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0048] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0049] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0050] Existing water sprinkler trucks and sweeper trucks have limited functions and are expensive. Water sprinkler trucks spray clean water onto the road surface, and then sweeper trucks wash and clean the stains and absorb them into the sewage tank.

[0051] However, water sprinkler trucks and sweeper trucks have largely redundant functions and structures, resulting in low utilization rates of their wastewater and clean water tanks. Equipping them with separate water sprinkler trucks and sweeper trucks would increase equipment purchase and maintenance costs. In summary, existing sweeper trucks are functionally limited and inconvenient to use.

[0052] Please see Figure 1 The present invention provides a sweeper truck 100, including a water storage structure and a spraying structure; the water storage structure includes a sewage tank 11 and a clean water tank 12; the spraying structure includes a spraying flow path 21, the sewage tank 11 and the clean water tank 12 can both be connected to the spraying flow path 21 through a water supply branch, and a spraying component 22 is provided at the end of the spraying flow path 21.

[0053] In the sweeper truck provided by this invention, both the wastewater tank 11 and the clean water tank 12 are connected to the spray flow path 21. No major modifications to the existing sweeper truck are required. Clean water can be stored simultaneously through both the wastewater tank 11 and the clean water tank 12. When flushing is needed, the clean water in both tanks is used simultaneously, increasing the clean water capacity of the existing sweeper truck. After the clean water is used up, the sweeper truck can continue to perform sweeping and washing functions, storing externally collected wastewater in the wastewater tank. This allows the sweeper truck to perform multiple cleaning functions simultaneously without the need for multiple different vehicles, saving vehicle costs.

[0054] Furthermore, the wastewater tank 11 is connected to the clean water tank via a connecting pipe, and a first on / off valve 31 is provided on the connecting pipe. In this embodiment, the wastewater tank 11 and the clean water tank 12 are interconnected to store more clean water. At the same time, when the clean water is used up and wastewater is collected in the wastewater tank 11, the first on / off valve 31 can be used to block the connection between the clean water tank 12 and the wastewater tank 11, preventing wastewater from contaminating the clean water tank.

[0055] Similarly, a second on / off valve 32 is provided on the water supply branch connected to the sewage tank 11. In this embodiment, the second on / off valve 32 can control the supply of water from the sewage tank 11 to the spray structure, and when sewage is stored in the sewage tank 11, it can prevent the sewage in the sewage tank 11 from contaminating the spray flow path.

[0056] Similarly, a third on / off valve 33 is provided on the water supply branch connected to the clean water tank 12. In this embodiment, the third on / off valve 33 can control the supply of water from the clean water tank 12 to the spray path.

[0057] It should be noted that, among the first opening and closing valve 31, the second opening and closing valve 32 and the third opening and closing valve 33 mentioned above, one or two can be selected, or they can be present simultaneously. In this embodiment, the simultaneous presence brings better technical effects, so as to facilitate the control of the sweeper.

[0058] On the other hand, a filter is also provided in the spray flow path. In this embodiment, the filter filters the clean water entering the spray flow path to prevent foreign objects from clogging the spray assembly 22.

[0059] Similarly, to facilitate spraying, a water pump 23 is also provided in the spray flow path to provide sufficient pressure so that the spraying assembly can spray clean water outward.

[0060] It should be noted that, in this embodiment, the two related technical features mentioned above may exist either one or both, and no specific restrictions are imposed here.

[0061] On the other hand, the spraying assembly 22 includes multiple nozzles arranged in parallel to facilitate spraying clean water onto different locations of the vehicle.

[0062] In the embodiment provided by the present invention, the sweeper truck 100 includes the sewage tank 11 and the clean water tank 12. A first opening and closing valve 31 is provided between the sewage tank 11 and the clean water tank 12, a second opening and closing valve 32 is provided between the sewage tank 11 and the spray flow path, and a third opening and closing valve 33 is provided between the clean water tank 12 and the spray flow path.

[0063] The spray path is equipped with a filter and a water pump.

[0064] The sweeper truck also includes a control device, which is electrically connected to the first on / off valve 31, the second on / off valve 32, and the third on / off valve 33, and is also electrically connected to the water pump. The control device includes a memory, a processor, and a sweeper truck operation control program stored in the memory. The processor executes the sweeper truck operation control program to implement the following sweeper truck operation control method:

[0065] Determine the cleaning mode of the sweeper truck;

[0066] The first on / off valve, the second on / off valve, the third on / off valve, and the water pump are controlled according to the cleaning mode.

[0067] Optionally, the cleaning mode includes a cleaning operation mode;

[0068] The control of the first on / off valve, the second on / off valve, the third on / off valve, the water pump, and the spraying assembly based on the cleaning mode includes:

[0069] The water pump is controlled to operate, and the first, second, and third on / off valves are controlled to open. The spraying assembly is for cleaning spraying.

[0070] Optionally, the cleaning mode includes a sweeping and washing operation mode;

[0071] The control of the first on / off valve, the second on / off valve, the third on / off valve, the water pump, and the spraying assembly based on the cleaning mode includes:

[0072] The water pump is controlled to operate, and the first and second on / off valves are controlled to close, while the third on / off valve is opened. The spraying assembly is for sweeping and washing spraying.

[0073] Optionally, the cleaning mode includes a hybrid operation mode;

[0074] The control of the first on / off valve, the second on / off valve, the third on / off valve, the water pump, and the spraying assembly based on the cleaning mode includes:

[0075] Obtain the first real-time water level in the wastewater tank and the second real-time water level in the clean water tank;

[0076] After determining the switching water level, the first on / off valve, the second on / off valve, the third on / off valve, the water pump, and the spraying assembly are controlled according to the relationship between the first real-time water level, the second real-time water level, and the switching water level.

[0077] Optionally, when the switching water level is within the wastewater tank;

[0078] The control of the first on / off valve, the second on / off valve, the third on / off valve, the water pump, and the spraying assembly based on the relationship between the first real-time water level, the second real-time water level, and the switching water level includes:

[0079] When the first real-time water level is greater than the switching water level, the water pump is controlled to start, and the second on / off valve is controlled to open, while the first on / off valve and the third on / off valve are closed, and the spraying assembly is for cleaning spraying.

[0080] When the first real-time water level is less than or equal to the switching water level, the water pump is controlled to start, and the third on / off valve is controlled to open, while the first and second on / off valves are closed. The spraying assembly is for washing and sweeping spraying.

[0081] Optionally, when the switching water level is within the clean water tank;

[0082] The control of the first on / off valve, the second on / off valve, the third on / off valve, the water pump, and the spraying assembly based on the relationship between the real-time water level and the switching water level includes:

[0083] When the second real-time water level is greater than the switching water level, the water pump is controlled to start, and the second on / off valve is controlled to open, while the first on / off valve and the third on / off valve are closed, until the first real-time water level in the sewage tank is lower than the working water level, then the second on / off valve and the first on / off valve are switched to close, and the three on / off valves are opened, and the spraying component is used for cleaning spraying.

[0084] When the real-time water level is less than or equal to the switching water level, the water pump is controlled to start, and the third on / off valve is controlled to open, while the first and second on / off valves are closed. The spraying assembly is for washing and sweeping spraying.

[0085] Optionally, the total water consumption for switching water levels satisfies the following relationship:

[0086]

[0087] Wherein, the V 水位 V is the total water consumption for switching water levels. 污V1 is the total volume of sewage in the sewage tank, and V is the cleaning usage rate. 清 V2 is the total clean water volume of the clean water tank, and V2 is the sweeping and washing rate.

[0088] When the V 水位 Greater than V 污 At that time, the water level being switched is within the clean water tank;

[0089] When the V 水位 Less than or equal to V 污 At that time, the water level being switched is within the wastewater tank.

[0090] Based on the above-mentioned sweeper truck, the present invention also provides an operation control method for the sweeper truck, the operation control method of the sweeper truck including the following steps:

[0091] S10. Determine the cleaning mode of the sweeper truck;

[0092] The cleaning mode of the sweeper can be determined by manually selecting the mode, thereby determining how the sweeper should plan the internal liquid flow.

[0093] S20. Based on the cleaning mode, control the first on / off valve, the second on / off valve, the third on / off valve, the water pump, and the spraying assembly respectively.

[0094] In this application, the opening and closing of the first, second, and third opening and closing valves control the connection and disconnection between the sewage tank and the clean water tank, the connection and disconnection between the sewage tank and the spray flow path, and the connection and disconnection between the clean water tank and the spray flow path.

[0095] In the embodiments provided by the present invention, the first opening and closing valve, the second opening and closing valve and the third opening and closing valve are controlled to be in different opening and closing states according to the different cleaning modes of the sweeper, thereby making different take-up order and take-up state of the liquid in the sewage tank and the clean water tank, so that it can both increase the water storage space and complete a larger area of ​​spraying, and at the same time complete the original sweeping and sewage recycling functions.

[0096] Specifically, the cleaning mode includes a cleaning operation mode, and step S20 includes:

[0097] S21. Control the water pump to work, and control the first on / off valve, the second on / off valve and the third on / off valve to open. The spraying assembly is for cleaning spraying.

[0098] In this embodiment, during the cleaning operation mode, a large amount of water needs to be sprayed outward by the sweeper truck to clean the street. Therefore, the first, second, and third opening and closing valves are all opened, so that the clean water in the sewage tank 11 and the clean water tank 12 is used for flushing, which greatly increases the water outlet space of the entire sweeper truck without affecting the original structure.

[0099] It should be noted that before starting the cleaning operation, water needs to be added to the clean water tank 12. Since the clean water tank 12 is connected to the sewage tank 11, water only needs to be added to the water inlet of the original clean water tank 12 to simultaneously fill the sewage tank 11.

[0100] On the other hand, the cleaning mode includes a sweeping and washing operation mode; step S20 includes:

[0101] S22. Control the water pump to work, and control the first and second on / off valves to close, the third on / off valve to open, and the spraying assembly to perform sweeping and washing spraying.

[0102] In this embodiment, street sweeping is required, and sewage and garbage on the road surface need to be collected. Therefore, the sewage tank 11 needs to be isolated, the first and second opening and closing valves need to be closed, and clean water needs to be supplied to the outside through the clean water tank 12 so that sewage can be collected in the sewage tank 11.

[0103] It should be noted that the sweeping operation mode can be started before the sweeper truck 100 starts working, so that the sewage tank 11 and the clean water tank 12 are isolated and clean water is supplied to the clean water tank 12, so that the sewage tank 11 is empty and waiting for sewage; or the overlapping cleaning operation can be performed first, and the sweeping operation can be started after the water in the sewage tank is used up, so that the sewage in the sewage tank is recycled.

[0104] On the other hand, the cleaning mode includes a mixed operation mode; step S20 includes:

[0105] S23. Obtain the first real-time water level in the sewage tank and the second real-time water level in the clean water tank;

[0106] In this embodiment, since the mixed operation needs to achieve both cleaning and sweeping functions simultaneously, it is necessary to ensure the amount of water inside the sweeping vehicle 100 during cleaning and the amount of water used for sweeping in the subsequent process, so that the length of street that can be cleaned by the two amounts of water is equal.

[0107] S24. After determining the switching water level of the sweeper truck, the first opening and closing valve, the second opening and closing valve, the third opening and closing valve, the water pump, and the spraying assembly are controlled according to the relationship between the first real-time water level, the second real-time water level, and the switching water level.

[0108] During the cleaning process, a large amount of water is sprayed outwards, causing the water level in the wastewater tank to drop rapidly. Once the water level reaches the switching level, it indicates that the cleaning mode is complete. Therefore, the flow of clean water inside the tank can be readjusted to complete the subsequent cleaning process.

[0109] In this embodiment, the mode is automatically switched according to the water level, ensuring that it can accurately select different water use modes based on the amount of water inside, thereby ensuring that the sweeper can achieve multi-functional sweeping, realize intelligent control, eliminate the need for manual decision-making, and facilitate effective planning of the internal water level.

[0110] Depending on the location of the water level switch, the flow direction of the internal liquid is also different;

[0111] Specifically, when the water level is switched within the wastewater tank, step S24 includes:

[0112] S241. When the real-time water level is greater than the switching water level, the water pump is controlled to start, and the second on / off valve is controlled to open, while the first on / off valve and the third on / off valve are closed. The spraying assembly is for cleaning spraying.

[0113] When the real-time water level is greater than the switching water level, it indicates that there is a lot of clean water in the sewage tank at this time. Therefore, clean water is supplied to the outside through the sewage tank 11 to achieve the spraying of clean water.

[0114] S242. When the real-time water level is less than or equal to the switching water level, the water pump is controlled to start, and the third on / off valve is controlled to open, while the first on / off valve and the second on / off valve are closed. The spraying assembly is for washing and sweeping spraying.

[0115] When the real-time water level is less than or equal to the switching water level, it indicates that the clean water in the sewage tank 11 has been almost consumed. Therefore, the cleaning operation can begin, sewage is recycled into the sewage tank, and clean water is sprayed out through the clean water tank for cleaning.

[0116] Furthermore, when the water level is switched within the clean water tank; step S24 includes:

[0117] S243. When the second real-time water level is greater than the switching water level, control the water pump to start and control the second on / off valve to open, while the first on / off valve and the third on / off valve are closed, until the first real-time water level in the sewage tank is lower than the working water level, then switch the second on / off valve and the first on / off valve to close, and the three on / off valves to open, and the spraying component is for cleaning spraying.

[0118] When the water level is in the clean water tank, the water in the sewage tank needs to be consumed first, and then the water in the clean water tank needs to be consumed. This ensures that the tank can cover the same length of road surface and automatically switch states so that cleaning and sweeping can be completed simultaneously on the same road surface in one round trip, saving water resources and improving work efficiency.

[0119] S244. When the real-time water level is less than or equal to the switching water level, the water pump is controlled to start, and the third on / off valve is controlled to open, while the first on / off valve and the second on / off valve are closed. The spraying assembly is for washing and sweeping spraying.

[0120] After cleaning is completed, the water tank continues to sweep and wash the water outwards.

[0121] In this embodiment, water is injected into the clean water tank 12 and the wastewater tank 11. Under the cleaning spray mode, water consumption is faster, while under the sweeping spray mode, water consumption is slower. Therefore, it is necessary to ensure that the water path length is the same for the cleaning and sweeping areas.

[0122] Since repeated activities are required, the total amount of clean water also needs to be used for cleaning according to the length of the sweepable path. The amount of water used for cleaning is obtained based on the length of the sweepable path, and then the switching water level is calculated with the total amount of clean water. Cleaning stops and sweeping starts when the switching water level is reached, so that the sweeper 100 can complete cleaning and sweeping of the same path in one round trip.

[0123] In this embodiment, by comprehensively considering the water levels in the sewage tank and the clean water tank, the amount of clean water that can be used in the sewage tank 11 is determined, which facilitates the determination of the cleaning path length. This allows the sweeper 100 to complete cleaning and sweeping of the same path in one round trip, thereby improving the working efficiency of the sweeper 100.

[0124] Specifically, the total water consumption for switching water levels satisfies the following relationship:

[0125]

[0126] Wherein, the V 水位 V is the total water consumption for switching water levels. 污V1 is the total volume of sewage in the sewage tank, and V is the cleaning usage rate. 清 V2 is the total clean water volume of the clean water tank, and V2 is the sweeping and washing rate.

[0127] When the V 水位 Greater than V 污 At that time, the water level being switched is within the clean water tank;

[0128] When the V 水位 Less than or equal to V 污 At that time, the water level being switched is within the wastewater tank.

[0129] In this embodiment, the water consumption for switching water levels is the water consumption in the cleaning mode. Based on this, the proportion of the cleaning mode and the sweeping mode in the total water consumption can be obtained by comparing the water consumption rates of the cleaning mode and the sweeping mode, since the paths are the same.

[0130] Furthermore, the total water consumption in the cleaning mode can be obtained based on the total water volume. Since the cleaning is performed using water from the wastewater tank first, it is necessary to determine which tank the water level is in based on the total water consumption and the volume of the wastewater tank.

[0131] Both cleaning and sweeping are done by spraying water outwards using spray components. The water consumption per unit time varies depending on the mode. An effective working path can be obtained by considering the preset water consumption per unit time and the overall driving speed.

[0132] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A method for controlling the operation of a sweeper truck, characterized in that, The operation control method of the sweeper truck includes the sweeper truck, which includes: A water storage structure includes a wastewater tank and a clean water tank, wherein the wastewater tank is capable of storing clean water; and, The spraying structure includes a spraying flow path, wherein both the wastewater tank and the clean water tank are connected to the spraying flow path via a water supply branch, and a spraying component is provided at the end of the spraying flow path. The wastewater tank is connected to the clean water tank via a connecting pipe, and a first on / off valve is installed on the connecting pipe. A second on / off valve is installed on the water supply branch line connected to the sewage tank; A third on / off valve is installed on the water supply branch line connected to the clean water tank; A water pump is also installed in the spray flow path; The operation control method of the sweeper truck includes the following steps: The cleaning mode of the sweeper is determined, including a washing operation mode, a washing and sweeping operation mode, and a mixed operation mode; The first on / off valve, the second on / off valve, the third on / off valve, the water pump, and the spraying assembly are controlled according to the cleaning mode. During the cleaning operation mode; The control of the first on / off valve, the second on / off valve, the third on / off valve, the water pump, and the spraying assembly based on the cleaning mode includes: The water pump is controlled to operate, and the first, second, and third on / off valves are controlled to open. The spraying assembly is for cleaning spraying. In the hybrid operation mode; The control of the first on / off valve, the second on / off valve, the third on / off valve, the water pump, and the spraying assembly based on the cleaning mode includes: Obtain the first real-time water level in the wastewater tank and the second real-time water level in the clean water tank; After determining the water level to be switched, the first on / off valve, the second on / off valve, the third on / off valve, the water pump, and the spraying assembly are controlled according to the relationship between the first real-time water level, the second real-time water level, and the water level to be switched. When the switching water level is within the sewage tank; The control of the first on / off valve, the second on / off valve, the third on / off valve, the water pump, and the spraying assembly based on the relationship between the first real-time water level, the second real-time water level, and the switching water level includes: When the first real-time water level is greater than the switching water level, the water pump is controlled to start, and the second on / off valve is controlled to open, while the first on / off valve and the third on / off valve are closed, and the spraying assembly is for cleaning spraying. When the first real-time water level is less than or equal to the switching water level, the water pump is controlled to start, and the third on / off valve is controlled to open, while the first on / off valve and the second on / off valve are closed. The spraying assembly is for washing and sweeping spraying. When the switching water level is within the clean water tank; The control of the first on / off valve, the second on / off valve, the third on / off valve, the water pump, and the spraying assembly based on the relationship between the real-time water level and the switching water level includes: When the second real-time water level is greater than the switching water level, the water pump is controlled to start, and the second on / off valve is controlled to open, while the first on / off valve and the third on / off valve are closed, until the first real-time water level in the sewage tank is lower than the working water level, then the second on / off valve and the first on / off valve are switched to close, and the three on / off valves are opened, and the spraying component is used for cleaning spraying. When the real-time water level is less than or equal to the switching water level, the water pump is controlled to start, and the third on / off valve is controlled to open, while the first on / off valve and the second on / off valve are closed. The spraying assembly is for washing and sweeping spraying. The total water consumption for switching water levels satisfies the following relationship: Among them, the This is the total water consumption for switching water levels. This refers to the total volume of sewage in the sewage tank. It is the cleaning usage rate. This is the total volume of clean water in the clean water tank. It refers to the sweeping and cleaning usage rate; When the Greater than At that time, the water level being switched is within the clean water tank; When the Less than or equal to At that time, the switching water level is inside the sewage tank; The mode is automatically switched according to the water level, so that the sweeper can clean and sweep the same path simultaneously in one round trip.

2. The operation control method for a sweeper truck according to claim 1, characterized in that, During the sweeping and cleaning operation mode; The control of the first on / off valve, the second on / off valve, the third on / off valve, the water pump, and the spraying assembly based on the cleaning mode includes: The water pump is controlled to operate, and the first and second on / off valves are controlled to close, while the third on / off valve is opened. The spraying assembly is for sweeping and washing spraying.

3. The operation control method for a sweeper truck according to claim 1, characterized in that, A filter is also installed in the spray path.

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