A road sweeper electromagnetic pulse air valve adaptive control method and device

Abstract

A method and device for adaptive control of electromagnetic pulse air valves of road sweepers. When the pressure value of the gas tank reaches the set pressure, the method sequentially controls the first pulse air valve and the second pulse air valve in each group of pulse air valves to blow air according to the first set time and the second set time, respectively, to complete the first round of air blowing control; when the pressure value of the gas tank reaches the set pressure, the method sequentially controls the second pulse air valve and the first pulse air valve in each group of pulse air valves to blow air according to the second set time and the first set time, respectively, to complete the second round of air blowing control; the first round of air blowing control and the second round of air blowing control are used as a blowing control cycle for cycle control to achieve adaptive control of pulse air valves. The present invention uses the method of cross-patrol of pulse air valves to consume gas from the gas tank to achieve balanced dust removal after multiple pulse air valves have completed a cycle, thereby avoiding local severe pollution of dust removal filters and filter clogging.

Description

Technical Field

[0001] The invention relates to the technical field of electromagnetic pulse air valve control, and in particular to a method and device for adaptively controlling an electromagnetic pulse air valve of a road sweeper. Background Art

[0002] With the development of urbanization and mechanization of sanitation operations, the cleaning of urban roads, especially those with a lot of dust or water, is currently mainly done by road sweepers. Since this type of vehicle has two modes, rainy and sunny, it can absorb water from the road in rainy weather and absorb dust from the road in sunny weather, so it is widely used in urban road cleaning. For dry and dusty road conditions, the pulse air valve spraying function in the dust removal system of the road sweeper is one of the core functions of the vehicle, so the control of the pulse air valve is particularly critical, which directly affects the cleaning efficiency of the vehicle and the service life of the dust removal system.

[0003] Currently, most of the pulse air valves for road sweepers on the market are controlled in a certain sequence, without considering the defects of the air supply system or the uniformity of air usage of each pulse air valve, resulting in long-term poor dust removal effect in some areas. Moreover, the dust removal system functions of pure electric road sweepers on the market currently mainly include compressor inflation function and pulse air valve blowing function. The pulse air valve blowing function is mainly switched by controlling the pulse air valve to be powered on and powered off. At the same time, there are relatively few types of compressors for pure electric road sweepers on the market, and there are many requirements for their working time and working conditions. For example, the compressor cannot work for a long time and needs to stop for a period of time after working for a certain period of time and then work again. This has higher requirements for how the pulse air valve performs blowing control. When multiple pulses need to be sprayed in a certain order, the air pressure provided by the compressor during the working time period can only support the work of some of the pulse air valves. In this way, there will be a phenomenon that the gas consumed by the second pulse air valve in the same group is much lower than the gas consumed by the first pulse air valve in the same group, resulting in uneven blowing effect and poor dust removal effect of the second pulse air valve. After a period of time, the dust removal filter element will be blocked or its life will be reduced, thereby affecting the dust removal effect of the entire vehicle.

[0004] Therefore, how to invent an electromagnetic pulse gas valve adaptive control method to fundamentally solve the problem of weakened dust removal effect and filter element clogging caused by uneven gas use of the pulse gas valve has become an urgent problem to be solved. Summary of the invention

[0005] To this end, the present invention provides a method and device for adaptively controlling the electromagnetic pulse air valves of a road sweeper. The method adopts a method in which the pulse air valves work in a cross-patrol manner to consume gas from the gas tank to achieve balanced dust removal after multiple pulse air valves have worked for two rounds, thereby avoiding local severe contamination of the dust removal filter and filter clogging problems. At the same time, it can realize adaptive control of the compressor air supply system in different working modes, and can adapt to whether it is continuous or intermittent inflation.

[0006] In order to achieve the above object, the present invention provides the following technical solution: a method for adaptively controlling an electromagnetic pulse air valve of a road sweeper, comprising:

[0007] The pulse air valves of the road sweeper are grouped in pairs, and the pulse air valves in each pulse air valve group are numbered as the first pulse air valve and the second pulse air valve;

[0008] After the pressure value of the air tank reaches the set pressure by inflating with the compressor, the first pulse air valve and the second pulse air valve in the first group of pulse air valves are controlled in sequence to blow air according to the first set time and the second set time respectively; after the first group of pulse air valves completes blowing, the compressor is started to inflate and boost the pressure through feedback from the pressure sensor of the air tank, so that the pressure value of the air tank is restored to the set pressure; the first pulse air valve and the second pulse air valve in the second group of pulse air valves are controlled in sequence to blow air according to the first set time and the second set time respectively; after the second group of pulse air valves completes blowing, the compressor is started to inflate and boost the pressure through feedback from the pressure sensor of the air tank, so that the pressure value of the air tank is restored to the set pressure; the third group of pulse air valves are controlled to blow air until the first round of blowing control of all pulse air valve groups is completed;

[0009] After the pressure value of the gas tank reaches the set pressure by inflating with the compressor, the second pulse gas valve and the first pulse gas valve in the first group of pulse gas valves are controlled in sequence to blow according to the second set time and the first set time respectively; after the first group of pulse gas valves completes blowing, the compressor is started to inflate and pressurize through feedback from the pressure sensor of the gas tank, so that the pressure value of the gas tank returns to the set pressure; the second pulse gas valve and the first pulse gas valve in the second group of pulse gas valves are controlled in sequence to blow according to the second set time and the first set time respectively; until the second round of blowing control of all pulse gas valve groups is completed;

[0010] The first round of air blowing control and the second round of air blowing control of all pulse air valve groups are regarded as an air blowing control cycle, and cycle control is performed to realize pulse air valve adaptive control.

[0011] As a preferred solution for the adaptive control method of electromagnetic pulse air valves of a road sweeper, the first set blowing time length corresponding to the first pulse air valve in each pulse air valve group is the same; the second set blowing time length corresponding to the second pulse air valve in each pulse air valve group is the same.

[0012] As a preferred scheme for the adaptive control method of the electromagnetic pulse air valve of a road sweeper, during the process of starting the compressor to inflate and pressurize the air tank based on feedback from the pressure sensor of the air tank to restore the pressure value of the air tank to a set pressure, the pressure sensor of the air tank detects that the pressure value of the air tank is lower than the set pressure, and then starts the compressor after a set waiting time; the set waiting time is not less than twice the set time of the pulse air valve blowing.

[0013] As a preferred solution of an adaptive control method for an electromagnetic pulse air valve of a road sweeper, during the blowing process of the pulse air valve, a sensor is set to feedback the state of the pulse air valve.

[0014] As a preferred solution for an electromagnetic pulse air valve adaptive control method for a road sweeper, a state matrix is ​​generated from the states executed by all pulse air valve groups in a blowing control cycle; and whether the pulse air valve control sequence is normal is confirmed through the state matrix.

[0015] The present invention also provides an adaptive control device for an electromagnetic pulse air valve of a road sweeper, based on the above adaptive control method for an electromagnetic pulse air valve of a road sweeper, comprising:

[0016] A pulse gas valve grouping and numbering module is used to group the pulse gas valves of the road sweeper into two groups, and to number the pulse gas valves in each pulse gas valve group as the first pulse gas valve and the second pulse gas valve;

[0017] The blowing control module of the first round of pulse air valve group is used to inflate the air through the compressor so that the pressure value of the air tank reaches the set pressure, and then control the first pulse air valve and the second pulse air valve in the first group of pulse air valves to blow air according to the first set time and the second set time respectively; after the first group of pulse air valves completes blowing, the compressor is started to inflate and pressurize through the feedback of the pressure sensor of the air tank, so that the pressure value of the air tank is restored to the set pressure; the first pulse air valve and the second pulse air valve in the second group of pulse air valves are controlled to blow air according to the first set time and the second set time respectively; after the second group of pulse air valves completes blowing, the compressor is started to inflate and pressurize through the feedback of the pressure sensor of the air tank, so that the pressure value of the air tank is restored to the set pressure; the third group of pulse air valves is controlled to blow air until the first round of blowing control of all pulse air valve groups is completed;

[0018] The second-round pulse air valve group blowing control module is used for inflating the air through the compressor so that the pressure value of the air tank reaches the set pressure, and then sequentially controlling the second pulse air valve and the first pulse air valve in the first group of pulse air valves to blow air according to the second set time and the first set time respectively; after the first group of pulse air valves completes blowing, the compressor is started to inflate and pressurize through feedback from the pressure sensor of the air tank so that the pressure value of the air tank returns to the set pressure; sequentially controlling the second pulse air valve and the first pulse air valve in the second group of pulse air valves to blow air according to the second set time and the first set time respectively; until the second round of blowing control of all pulse air valve groups is completed;

[0019] The pulse air valve group cycle blowing control module is used to treat the first round of blowing control and the second round of blowing control of all pulse air valve groups as a blowing control cycle, perform cycle control, and realize pulse air valve adaptive control.

[0020] As a preferred solution of the adaptive control device of the electromagnetic pulse air valve of a road sweeper, in the blowing control module of the first round of pulse air valve group and the blowing control module of the second round of pulse air valve group, the first set blowing time length corresponding to the first pulse air valve in each pulse air valve group is the same; the second set blowing time length corresponding to the second pulse air valve in each pulse air valve group is the same.

[0021] As a preferred solution for the electromagnetic pulse air valve adaptive control device of a road sweeper, in the first round of pulse air valve group blowing control module and the second round of pulse air valve group blowing control module, when the pressure sensor of the air tank is fed back and the compressor is started to inflate and pressurize, so that the pressure value of the air tank is restored to the set pressure, the pressure sensor of the air tank detects that the pressure value of the air tank is lower than the set pressure, and then starts the compressor after a set waiting time; the set waiting time is not less than twice the set time of the pulse air valve blowing.

[0022] As a preferred solution for an electromagnetic pulse air valve adaptive control device for a road sweeper, in the first round of pulse air valve group blowing control module and the second round of pulse air valve group blowing control module, during the blowing process of the pulse air valve, the state of the pulse air valve is fed back by setting a sensor.

[0023] As a preferred solution for the electromagnetic pulse air valve adaptive control device of a road sweeper, in the first round of pulse air valve group blowing control module and the second round of pulse air valve group blowing control module, a state matrix is ​​generated for the states executed by all pulse air valve groups in one blowing control cycle; and the state matrix is ​​used to confirm whether the order of pulse air valve control is normal.

[0024] The present invention has the following advantages: the pulse air valves of the road sweeper are grouped in pairs, and the pulse air valves in each pulse air valve group are numbered as the first pulse air valve and the second pulse air valve; after the pressure value of the air tank reaches the set pressure by inflating with the compressor, the first pulse air valve and the second pulse air valve in the first group of pulse air valves are controlled in turn to blow air according to the first set time and the second set time respectively; after the first group of pulse air valves completes blowing, the compressor is started to inflate and boost the pressure through feedback from the pressure sensor of the air tank, so that the pressure value of the air tank is restored to the set pressure; the first pulse air valve and the second pulse air valve in the second group of pulse air valves are controlled in turn to blow air according to the first set time and the second set time respectively; after the second group of pulse air valves completes blowing, the compressor is started to inflate and boost the pressure through feedback from the pressure sensor of the air tank, so that the pressure value of the air tank is restored to the set pressure ; Control the third group of pulse air valves to blow, and so on, to complete the first round of blowing control of all pulse air valve groups; after the pressure value of the air tank reaches the set pressure by inflating with the compressor, the second pulse air valve and the first pulse air valve in the first group of pulse air valves are controlled in turn to blow according to the second set time and the first set time respectively; after the first group of pulse air valves completes blowing, the compressor is started to inflate and pressurize through feedback from the pressure sensor of the air tank, so that the pressure value of the air tank returns to the set pressure; the second pulse air valve and the first pulse air valve in the second group of pulse air valves are controlled in turn to blow according to the second set time and the first set time respectively; and so on, to complete the second round of blowing control of all pulse air valve groups; the first round of blowing control and the second round of blowing control of all pulse air valve groups are regarded as a blowing control cycle, and cyclic control is performed to realize adaptive control of pulse air valves. The present invention uses a method of pulse valves working in a cross-patrol manner to consume gas from gas tanks to achieve balanced dust removal after multiple pulse valves have worked for two rounds, thereby avoiding local severe pollution of the dust removal filter and filter clogging problems. At the same time, it can realize the compressor air supply system that is adaptive to different working modes, whether it is continuous or intermittent air pumping. The present invention can take into account the current limited hardware conditions, maximize the use of compressor efficiency and avoid the problem of reduced life of the dust removal filter due to uneven air pressure distribution. It can effectively improve the dust removal efficiency of the road sweeper, and at the same time has adaptability and can adapt to multiple air supply modes. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0026] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0027] Figure 1 A schematic flow chart of an adaptive control method for an electromagnetic pulse air valve of a road sweeper provided in Example 1 of the present invention;

[0028] Figure 2 This is a schematic diagram of the architecture of an electromagnetic pulse air valve adaptive control device for a road sweeper provided in Example 2 of the present invention. DETAILED DESCRIPTION

[0029] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1

[0031] See also Figure 1 Embodiment 1 of the present invention provides a method for sorting synthetic routes based on multi-step prediction, comprising the following steps:

[0032] S1. Group the pulse air valves of the road sweeper into groups of two each, and number the pulse air valves in each pulse air valve group as the first pulse air valve and the second pulse air valve;

[0033] S2. After the pressure value of the air tank reaches the set pressure by inflating with the compressor, the first pulse air valve and the second pulse air valve in the first group of pulse air valves are controlled in sequence to blow air according to the first set time and the second set time respectively; after the first group of pulse air valves completes blowing, the compressor is started to inflate and boost the pressure through feedback from the pressure sensor of the air tank, so that the pressure value of the air tank returns to the set pressure; the first pulse air valve and the second pulse air valve in the second group of pulse air valves are controlled in sequence to blow air according to the first set time and the second set time respectively; after the second group of pulse air valves completes blowing, the compressor is started to inflate and boost the pressure through feedback from the pressure sensor of the air tank, so that the pressure value of the air tank returns to the set pressure; the third group of pulse air valves is controlled to blow air, and so on, to complete the first round of blowing control of all pulse air valve groups;

[0034] S3, after the pressure value of the gas tank reaches the set pressure by inflating with the compressor, the second pulse gas valve and the first pulse gas valve in the first group of pulse gas valves are controlled in sequence to blow according to the second set time and the first set time respectively; after the first group of pulse gas valves completes blowing, the compressor is started to inflate and pressurize through feedback from the pressure sensor of the gas tank, so that the pressure value of the gas tank returns to the set pressure; the second pulse gas valve and the first pulse gas valve in the second group of pulse gas valves are controlled in sequence to blow according to the second set time and the first set time respectively; and so on, the second round of blowing control of all pulse gas valve groups is completed;

[0035] S4. The first round of air blowing control and the second round of air blowing control of all pulse air valve groups are regarded as an air blowing control cycle, and cycle control is performed to realize pulse air valve adaptive control.

[0036] In this embodiment, in step S1, the pulse air valves of the road sweeper are grouped in pairs, and the pulse air valves in each pulse air valve group are numbered as the first pulse air valve and the second pulse air valve;

[0037] Specifically, assuming that there are 6 pulse gas valves in total, the 6 pulse gas valves are divided into three groups, namely A1, A2, and A3. The two pulse gas valves in group A1 are A11 and A12; the two pulse gas valves in group A2 are A21 and A22; the two pulse gas valves in group A3 are A31 and A32.

[0038] In this embodiment, in step S2, after the pressure value of the air tank reaches the set pressure by inflating with the compressor, the first pulse air valve and the second pulse air valve in the first group of pulse air valves are controlled in sequence to blow air according to the first set time and the second set time respectively; after the first group of pulse air valves completes blowing, the compressor is started to inflate and boost the pressure through feedback from the pressure sensor of the air tank, so that the pressure value of the air tank is restored to the set pressure; the first pulse air valve and the second pulse air valve in the second group of pulse air valves are controlled in sequence to blow air according to the first set time and the second set time respectively; after the second group of pulse air valves completes blowing, the compressor is started to inflate and boost the pressure through feedback from the pressure sensor of the air tank, so that the pressure value of the air tank is restored to the set pressure; the third group of pulse air valves is controlled to blow air, and so on, to complete the first round of blowing control of all pulse air valve groups;

[0039] Specifically, the compressor starts to work and pump air, and when the pressure value reaches the set pressure P value, the compressor stops working; the first pulse air valve A11 of the first group of pulse air valves A1 sprays according to the set time t1, and the pressure value changes from P value to P1; after the first pulse air valve A11 completes the spraying, the second pulse air valve A12 sprays according to the set time t2, and the pressure value changes from P1 to P2, P1>P2, and at the same time (P-P1)>(P1-P2), and at this time the first round of work of the first group of pulse air valves is completed;

[0040] The pressure sensor detects that the pressure value is lower than the P value and after a time t {t>=(t1+t2)}, the compressor needs to be re-inflated to increase the tank pressure value from P2 to the pressure value P, the compressor stops working, and it is the turn of the second group of pulse air valves A2 to start working. The spraying sequence is the same as the spraying sequence of the first group. A21 sprays first, and the pressure value changes from P to P1; then A22 starts to spray according to the set time t2, and the pressure value changes from P1 to P2, and the second group of pulse air valves ends work;

[0041] By analogy, the compressor also needs to restart pumping until the two pulse valves A31 and A32 of the third group of pulse valves A3 have finished blowing in sequence, and the first round of blowing control of all pulse valve groups is completed;

[0042] At this time, the dust removal effect of the first pulse gas valve A11, A21, and A31 in all three groups of pulses is better than that of A12, A22, and A32.

[0043] In this embodiment, in step S3, after the pressure value of the gas tank reaches the set pressure by inflating with the compressor, the second pulse gas valve and the first pulse gas valve in the first group of pulse gas valves are controlled in sequence to blow according to the second set time and the first set time respectively; after the first group of pulse gas valves completes blowing, the compressor is started to inflate and pressurize through feedback from the pressure sensor of the gas tank, so that the pressure value of the gas tank is restored to the set pressure; the second pulse gas valve and the first pulse gas valve in the second group of pulse gas valves are controlled in sequence to blow according to the second set time and the first set time respectively; and so on, the second round of blowing control of all pulse gas valve groups is completed;

[0044] Specifically, after the first round of blowing control of all pulse air valve groups is completed, the second round begins. First, the compressor starts to pump air. After the air pressure value reaches P, dust removal is still carried out in the order of group A1, group A2, and group A3. However, it is necessary to determine which of the two pulses in the same group was blown for the first time in the previous round. Undoubtedly, the order within the group needs to be swapped at this time. That is, when the pressure value reaches the P value, the compressor stops, and A12 blows first according to the set duration t2. After completion, A11 blows according to the set duration t1, and so on. In this round, A22's working order is ahead of A21, and the blowing order of A32 is controlled ahead of A31, so the working order of the two pulse air valves in the same group needs to be controlled alternately.

[0045] In this embodiment, during the blowing process of the pulse valve, the state of the pulse valve is fed back by setting a sensor. The state of all pulse valve groups executed in a blowing control cycle is generated into a state matrix; and the state matrix is ​​used to confirm whether the control sequence of the pulse valve is normal.

[0046] Specifically, the states of all pulse air valve groups executed in a blowing control cycle are used to generate a state matrix A[4×3] (four rows and three columns) to record the control order of each pulse air valve and detect whether the filter elements at each position are alternately dusted. The state matrix A[4×3] is:

[0047] ;

[0048] Among them, A 1[i] Indicates the first group of pulse gas valves; A 2[i] Indicates the second group of pulse gas valves; A 3[i] Indicates the third group of pulse gas valves.

[0049] In the specific implementation process, it is stipulated that the pulse gas valve in the same group that has priority in blowing is set to 1, and the second one to be blown is set to -1. After a cycle is completed, the state matrix formed is as follows:

[0050] ;

[0051] The above matrix shows that the six pulses of the three groups of pulse gas valves are strictly executed in sequence, and the pulse gas valves of the same group are executed in an exchanged sequence in the second half of the cycle, and the surface dust removal effect is best. If any situation different from the above matrix occurs, it means that the working sequence of the pulse gas valve is abnormal. However, as long as the test is sufficient, the normal situation will not be different from the above situation.

[0052] In this embodiment, in step S4, the first round of air blowing control and the second round of air blowing control of all pulse air valve groups are regarded as one air blowing control cycle, and cyclic control is performed to realize pulse air valve adaptive control.

[0053] Specifically, the first round of blowing control and the second round of blowing control of all pulse air valve groups are taken as a cycle, and each pulse performs two blowing operations in each cycle. In the first round of blowing control and the second round of blowing control in the cycle, the working order of the same group of pulse air valves is just opposite, thereby ensuring that the air pressure value consumed by each pulse air valve in a cycle is P-P2, and the six pulses have equal opportunities. Taking full consideration of the life and working requirements of the compressor, the dust removal effect of each pulse air valve on the same filter element is equivalent, and the best effect can be achieved.

[0054] To summarize, the present invention groups the pulse air valves of the road sweeper into groups of two, and numbers the pulse air valves in each pulse air valve group as the first pulse air valve and the second pulse air valve; after the pressure value of the air tank reaches the set pressure by inflating with the compressor, the first pulse air valve and the second pulse air valve in the first group of pulse air valves are controlled in turn to blow air according to the first set time and the second set time respectively; after the first group of pulse air valves completes blowing, the compressor is started to inflate and boost the pressure through feedback from the pressure sensor of the air tank, so that the pressure value of the air tank is restored to the set pressure; the first pulse air valve and the second pulse air valve in the second group of pulse air valves are controlled in turn to blow air according to the first set time and the second set time respectively; after the second group of pulse air valves completes blowing, the compressor is started to inflate and boost the pressure through feedback from the pressure sensor of the air tank, so that the pressure value of the air tank is restored to the set pressure; Control the third group of pulse air valves to blow, and so on, to complete the first round of blowing control of all pulse air valve groups; after the pressure value of the air tank reaches the set pressure by inflating with the compressor, the second pulse air valve and the first pulse air valve in the first group of pulse air valves are controlled in turn to blow according to the second set time and the first set time respectively; after the first group of pulse air valves completes blowing, the compressor is started to inflate and pressurize through feedback from the pressure sensor of the air tank, so that the pressure value of the air tank returns to the set pressure; the second pulse air valve and the first pulse air valve in the second group of pulse air valves are controlled in turn to blow according to the second set time and the first set time respectively; and so on, to complete the second round of blowing control of all pulse air valve groups; the first round of blowing control and the second round of blowing control of all pulse air valve groups are regarded as a blowing control cycle, and cyclic control is performed to realize pulse air valve adaptive control. The present invention uses a method of pulse valves working in a cross-patrol manner to consume gas from gas tanks to achieve balanced dust removal after multiple pulse valves have worked for two rounds, thereby avoiding local severe pollution of the dust removal filter and filter clogging problems. At the same time, it can realize the compressor air supply system that is adaptive to different working modes, whether it is continuous or intermittent air pumping. The present invention can take into account the current limited hardware conditions, maximize the use of compressor efficiency and avoid the problem of reduced life of the dust removal filter due to uneven air pressure distribution. It can effectively improve the dust removal efficiency of the road sweeper, and at the same time has adaptability and can adapt to multiple air supply modes.

[0055] It should be noted that the method of the embodiment of the present disclosure can be performed by a single device, such as a computer or a server. The method of the present embodiment can also be applied in a distributed scenario and completed by multiple devices cooperating with each other. In the case of such a distributed scenario, one of the multiple devices can only perform one or more steps in the method of the embodiment of the present disclosure, and the multiple devices will interact with each other to complete the described method.

[0056] It should be noted that the above describes some embodiments of the present disclosure. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0057] Example 2

[0058] See also Figure 2 Embodiment 2 of the present invention further provides an electromagnetic pulse air valve adaptive control device for a road sweeper, comprising:

[0059] The pulse gas valve grouping numbering module 001 is used to group the pulse gas valves of the road sweeper into two groups, and number the pulse gas valves in each pulse gas valve group as the first pulse gas valve and the second pulse gas valve;

[0060] The first round of pulse air valve group blowing control module 002 is used to inflate the air through the compressor, so that the pressure value of the air tank reaches the set pressure, and then control the first pulse air valve and the second pulse air valve in the first group of pulse air valves to blow air according to the first set time and the second set time respectively; after the first group of pulse air valves completes blowing, the compressor is started to inflate and pressurize through the feedback of the pressure sensor of the air tank, so that the pressure value of the air tank is restored to the set pressure; the first pulse air valve and the second pulse air valve in the second group of pulse air valves are controlled in turn to blow air according to the first set time and the second set time respectively; after the second group of pulse air valves completes blowing, the compressor is started to inflate and pressurize through the feedback of the pressure sensor of the air tank, so that the pressure value of the air tank is restored to the set pressure; the third group of pulse air valves is controlled to blow, and so on, to complete the first round of blowing control of all pulse air valve groups;

[0061] The second-round pulse air valve group blowing control module 003 is used to inflate air through the compressor so that the pressure value of the air tank reaches the set pressure, and then control the second pulse air valve and the first pulse air valve in the first group of pulse air valves to blow air according to the second set time and the first set time respectively; after the first group of pulse air valves completes blowing, the compressor is started to inflate and pressurize through feedback from the pressure sensor of the air tank so that the pressure value of the air tank returns to the set pressure; the second pulse air valve and the first pulse air valve in the second group of pulse air valves are controlled in turn to blow air according to the second set time and the first set time respectively; and so on, the second round of blowing control of all pulse air valve groups is completed;

[0062] The pulse air valve group cycle blowing control module 004 is used to treat the first round of blowing control and the second round of blowing control of all pulse air valve groups as a blowing control cycle, perform cycle control, and realize pulse air valve adaptive control.

[0063] In this embodiment, in the first round of pulse air valve group blowing control module 002 and the second round of pulse air valve group blowing control module 003, the first set blowing time length corresponding to the first pulse air valve in each pulse air valve group is the same; the second set blowing time length corresponding to the second pulse air valve in each pulse air valve group is the same.

[0064] In the present embodiment, in the first round of pulse air valve group blowing control module 002 and the second round of pulse air valve group blowing control module 003, during the process of starting the compressor to inflate and boost the pressure through feedback from the pressure sensor of the air tank to restore the pressure value of the air tank to the set pressure, after the pressure sensor of the air tank detects that the pressure value of the air tank is lower than the set pressure, the compressor is started after a set waiting time; the set waiting time is not less than twice the set time of the pulse air valve blowing.

[0065] In this embodiment, in the first-round pulse gas valve group blowing control module 002 and the second-round pulse gas valve group blowing control module 003, during the blowing process of the pulse gas valve, the status of the pulse gas valve is fed back by setting a sensor.

[0066] In this embodiment, in the first round pulse gas valve group blowing control module 002 and the second round pulse gas valve group blowing control module 003, the states executed by all pulse gas valve groups in one blowing control cycle generate a state matrix; the state matrix is ​​used to confirm whether the order of pulse gas valve control is normal.

[0067] It should be noted that the information interaction, execution process and other contents between the modules of the above-mentioned system are based on the same concept as the method embodiment in Example 1 of the present application, and the technical effects they bring are the same as those of the method embodiment of the present application. For specific contents, please refer to the description in the method embodiment shown above in the present application, and will not be repeated here.

[0068] Example 3

[0069] Embodiment 3 of the present invention provides a non-transitory computer-readable storage medium, in which a program code for an adaptive control method for an electromagnetic pulse air valve of a road sweeper is stored. The program code includes instructions for executing embodiment 1 or any possible implementation method of an adaptive control method for an electromagnetic pulse air valve of a road sweeper.

[0070] Computer-readable storage media can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state drive (SSD)).

[0071] Example 4

[0072] Embodiment 4 of the present invention provides an electronic device, including: a memory and a processor;

[0073] The processor and the memory communicate with each other via a bus; the memory stores program instructions that can be executed by the processor, and the processor calls the program instructions to execute an adaptive control method for an electromagnetic pulse air valve of a road sweeper in accordance with embodiment 1 or any possible implementation thereof.

[0074] Specifically, the processor can be implemented by hardware or by software. When implemented by hardware, the processor can be a logic circuit, an integrated circuit, etc.; when implemented by software, the processor can be a general-purpose processor implemented by reading software codes stored in a memory. The memory can be integrated in the processor or can be located outside the processor and exist independently.

[0075] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present invention is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable systems. The computer instructions can be stored in a computer-readable storage medium, or transmitted from a computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.

[0076] Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general computing system, they can be concentrated on a single computing system, or distributed on a network composed of multiple computing systems, and optionally, they can be implemented by a program code executable by a computing system, so that they can be stored in a storage system and executed by the computing system, and in some cases, the steps shown or described can be executed in a different order than here, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present invention is not limited to any specific combination of hardware and software.

[0077] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A road sweeper electromagnetic pulse air valve adaptive control method, characterized in that: include: The pulse air valves of the road sweeper are grouped in pairs, and the pulse air valves in each pulse air valve group are numbered as the first pulse air valve and the second pulse air valve; After the pressure value of the gas tank reaches the set pressure through the compressor, the first pulse gas valve and the second pulse gas valve in the first group of pulse gas valves are controlled in sequence to blow gas according to the first set time and the second set time respectively; After the first group of pulse air valves completes blowing, the compressor is started to pump air and increase pressure through feedback from the pressure sensor of the air tank, so that the pressure value of the air tank returns to the set pressure; Sequentially controlling the first pulse air valve and the second pulse air valve in the second group of pulse air valves to blow air according to the first set time length and the second set time length respectively; After the second group of pulse air valves completes blowing, the compressor is started to pump air and pressurize through the pressure sensor of the air tank, so that the pressure value of the air tank returns to the set pressure; the third group of pulse air valves is controlled to blow air until the first round of blowing control of all pulse air valve groups is completed; After the pressure value of the gas tank reaches the set pressure by pumping air through the compressor, the second pulse gas valve and the first pulse gas valve in the first group of pulse gas valves are sequentially controlled to blow air according to the second set time and the first set time respectively; After the first group of pulse air valves completes blowing, the compressor is started to pump air and increase pressure through feedback from the pressure sensor of the air tank, so that the pressure value of the air tank returns to the set pressure; The second pulse air valve and the first pulse air valve in the second group of pulse air valves are sequentially controlled to blow air according to the second set time and the first set time respectively; Until the second round of blowing control of all pulse air valve groups is completed; The first round of air blowing control and the second round of air blowing control of all pulse air valve groups are regarded as an air blowing control cycle, and cycle control is performed to realize pulse air valve adaptive control; Generate a state matrix of the states executed by all pulse gas valve groups in a blowing control cycle; confirm whether the order of pulse gas valve control is normal through the state matrix; The six pulse gas valves are divided into three groups, namely A1, A2 and A3. The two pulse gas valves in group A1 are A11 and A12; the two pulse gas valves in group A2 are A21 and A22; the two pulse gas valves in group A3 are A31 and A32; The compressor starts to pump air, and when the pressure reaches the set pressure P, the compressor stops working; the first pulse valve A11 of the first group of pulse valves A1 sprays according to the set time t1, and the pressure value changes from P to P1; after the first pulse valve A11 completes the spraying, the second pulse valve A12 sprays according to the set time t2, and the pressure value changes from P1 to P2, P1>P2, and (P-P1)>(P1-P2) must exist at the same time, and the first round of work of the first group of pulse valves is completed at this time; The pressure sensor detects that the pressure value is lower than the P value and after a time t {t> = (t1 + t2)}, the compressor is required to re-inflate the gas tank from P2 to the pressure value P, the compressor stops working, and it is the turn of the second group of pulse gas valves A2 to start working. The spraying sequence is the same as the spraying sequence of the first group. A21 sprays first, and the pressure value changes from P to P1; then A22 starts to spray according to the set time t2, and the pressure value changes from P1 to P2, and the second group of pulse gas valves ends work; By analogy, the compressor also needs to restart pumping until the two pulse valves A31 and A32 of the third group of pulse valves A3 have finished blowing in sequence, and the first round of blowing control of all pulse valve groups is completed; After the first round of blowing control of all pulse gas valve groups is completed, the second round begins. First, the compressor starts to pump air. After the air pressure value reaches P, dust removal is still carried out in the order of group A1, group A2, and group A3. It is determined which of the two pulses in the same group was blown for the first time in the previous round, and the order in this group is swapped. That is, when the pressure value reaches the P value, the compressor stops, and A12 blows first according to the set time t2. After completion, A11 blows according to the set time t1, and so on. The working order of A22 in this round is before A21, and the blowing order of A32 is controlled before A31. The working order of the two pulse gas valves in the same group is controlled alternately; The states of all pulse air valve groups executed in a blowing control cycle generate a state matrix A[4×3], which is used to record the control sequence of each pulse air valve and realize the detection of whether the filter element at each position is alternately dusted; the state matrix A[4×3] is: Among them, A 1[i] Indicates the first group of pulse gas valves; A 2[i] Indicates the second group of pulse gas valves; A 3[i] Indicates the third group of pulse gas valves.

2. The method for adaptively controlling electromagnetic pulse air valve of a road sweeper according to claim 1, characterized in that: The first set blowing time lengths corresponding to the first pulse air valves in each pulse air valve group are the same; the second set blowing time lengths corresponding to the second pulse air valves in each pulse air valve group are the same.

3. The method for adaptively controlling electromagnetic pulse air valve of a road sweeper according to claim 2, characterized in that: In the process of starting the compressor to inflate and pressurize the gas tank through feedback from the pressure sensor of the gas tank so that the pressure value of the gas tank returns to the set pressure, after the pressure sensor of the gas tank detects that the pressure value of the gas tank is lower than the set pressure, the compressor is started after a set waiting time; The set waiting time is not less than twice the set blowing time of the pulse air valve.

4. The method for adaptively controlling electromagnetic pulse air valve of a road sweeper according to claim 3, characterized in that: During the blowing process of the pulse air valve, the state of the pulse air valve is fed back through the setting sensor.

5. An adaptive control device for electromagnetic pulse air valve of a road sweeper, adopting an adaptive control method for electromagnetic pulse air valve of a road sweeper as claimed in any one of claims 1 to 4, characterized in that: include: A pulse gas valve grouping and numbering module is used to group the pulse gas valves of the road sweeper into two groups, and to number the pulse gas valves in each pulse gas valve group as the first pulse gas valve and the second pulse gas valve; The first round of pulse air valve group blowing control module is used to inflate the air through the compressor so that the pressure value of the air tank reaches the set pressure, and then sequentially control the first pulse air valve and the second pulse air valve in the first group of pulse air valves to blow air according to the first set time and the second set time respectively; After the first group of pulse air valves completes blowing, the compressor is started to pump air and increase pressure through feedback from the pressure sensor of the air tank, so that the pressure value of the air tank returns to the set pressure; Sequentially controlling the first pulse air valve and the second pulse air valve in the second group of pulse air valves to blow air according to the first set time length and the second set time length respectively; After the second group of pulse air valves completes blowing, the compressor is started to pump air and pressurize through the pressure sensor of the air tank, so that the pressure value of the air tank returns to the set pressure; the third group of pulse air valves is controlled to blow air until the first round of blowing control of all pulse air valve groups is completed; The second round of pulse air valve group blowing control module is used to inflate the air through the compressor so that the pressure value of the air tank reaches the set pressure, and then sequentially control the second pulse air valve and the first pulse air valve in the first group of pulse air valves to blow air according to the second set time and the first set time respectively; After the first group of pulse air valves completes blowing, the compressor is started to pump air and increase pressure through feedback from the pressure sensor of the air tank, so that the pressure value of the air tank returns to the set pressure; The second pulse air valve and the first pulse air valve in the second group of pulse air valves are sequentially controlled to blow air according to the second set time and the first set time respectively; Until the second round of blowing control of all pulse air valve groups is completed; The pulse air valve group cycle blowing control module is used to take the first round blowing control and the second round blowing control of all the pulse air valve groups as a blowing control cycle, perform cycle control, and realize pulse air valve adaptive control; In the first round of pulse gas valve group blowing control module and the second round of pulse gas valve group blowing control module, the state of all pulse gas valve groups executed in one blowing control cycle generates a state matrix; through the state matrix, it is confirmed whether the order of pulse gas valve control is normal; Generate a state matrix of the states executed by all pulse gas valve groups in a blowing control cycle; confirm whether the order of pulse gas valve control is normal through the state matrix; The six pulse gas valves are divided into three groups, namely A1, A2 and A3. The two pulse gas valves in group A1 are A11 and A12; the two pulse gas valves in group A2 are A21 and A22; the two pulse gas valves in group A3 are A31 and A32; The compressor starts to pump air, and when the pressure reaches the set pressure P, the compressor stops working; the first pulse valve A11 of the first group of pulse valves A1 sprays according to the set time t1, and the pressure value changes from P to P1; after the first pulse valve A11 completes the spraying, the second pulse valve A12 sprays according to the set time t2, and the pressure value changes from P1 to P2, P1>P2, and (P-P1)>(P1-P2) must exist at the same time, and the first round of work of the first group of pulse valves is completed at this time; The pressure sensor detects that the pressure value is lower than the P value and after a time t {t> = (t1 + t2)}, the compressor is required to re-inflate the gas tank from P2 to the pressure value P, the compressor stops working, and it is the turn of the second group of pulse gas valves A2 to start working. The spraying sequence is the same as the spraying sequence of the first group. A21 sprays first, and the pressure value changes from P to P1; then A22 starts to spray according to the set time t2, and the pressure value changes from P1 to P2, and the second group of pulse gas valves ends work; By analogy, the compressor also needs to restart pumping until the two pulse valves A31 and A32 of the third group of pulse valves A3 have finished blowing in sequence, and the first round of blowing control of all pulse valve groups is completed; After the first round of blowing control of all pulse gas valve groups is completed, the second round begins. First, the compressor starts to pump air. After the air pressure value reaches P, dust removal is still carried out in the order of group A1, group A2, and group A3. It is determined which of the two pulses in the same group was blown for the first time in the previous round, and the order in this group is swapped. That is, when the pressure value reaches the P value, the compressor stops, and A12 blows first according to the set time t2. After completion, A11 blows according to the set time t1, and so on. The working order of A22 in this round is before A21, and the blowing order of A32 is controlled before A31. The working order of the two pulse gas valves in the same group is controlled alternately; The states of all pulse air valve groups executed in a blowing control cycle generate a state matrix A[4×3], which is used to record the control sequence of each pulse air valve and realize the detection of whether the filter element at each position is alternately dusted; the state matrix A[4×3] is: Among them, A 1[i] Indicates the first group of pulse gas valves; A 2[i] Indicates the second group of pulse gas valves; A 3[i] Indicates the third group of pulse gas valves.

6. The electromagnetic pulse air valve adaptive control device for a road sweeper according to claim 5, characterized in that: In the first round of pulse air valve group blowing control module and the second round of pulse air valve group blowing control module, the first set blowing time corresponding to the first pulse air valve in each pulse air valve group is the same; the second set blowing time corresponding to the second pulse air valve in each pulse air valve group is the same.

7. The electromagnetic pulse air valve adaptive control device for a road sweeper according to claim 6, characterized in that: In the first round of pulse valve group blowing control module and the second round of pulse valve group blowing control module, in the process of starting the compressor to inflate and pressurize the gas tank through feedback from the pressure sensor of the gas tank, so that the pressure value of the gas tank is restored to the set pressure, after the pressure sensor of the gas tank detects that the pressure value of the gas tank is lower than the set pressure, the compressor is started after a set waiting time; The set waiting time is not less than twice the set blowing time of the pulse air valve.

8. The electromagnetic pulse air valve adaptive control device for a road sweeper according to claim 7, characterized in that: In the first-round pulse air valve group blowing control module and the second-round pulse air valve group blowing control module, during the blowing process of the pulse air valve, the state of the pulse air valve is fed back by setting a sensor.

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