CN106368156A - Intelligent water spraying and dust removing system for urban roads - Google Patents

Abstract

The urban road intelligent water spray dust removal system provided by the present invention includes a water spray device, a control module and an air quality monitoring module for monitoring air quality parameters. The water spray device includes a nozzle, a water pipe and is used to control the nozzle to open and close And the rotating driving module, the nozzle is arranged on the light pole of the lighting street lamp, the nozzle is connected with the water pipe, and the driving module is connected with the control module; the urban road intelligent water spray dust removal system in the present invention is installed on the street lamp pole Sprinkler head, and control it to rotate and spray water in a specific way, can be used to remove dust, purify the air, irrigate green belts, emergency fire rescue, and can also be used as a means of cooling when the temperature is high in summer. The invention can effectively improve the sprinkling efficiency , Save water resources.

Description

Urban road intelligent sprinkler dust removal system

technical field

The invention relates to the field of urban traffic management, in particular to an intelligent water spray and dust removal system for urban roads.

Background technique

With the continuous improvement of my country's economic level, the pace of urbanization is accelerating year by year, and there are more and more urban roads. However, urban roads, especially in areas with arid and little rain, cause dust on the ground due to the passing of vehicles. Driven by wind and other drives, it flies into the atmosphere and causes open pollution. It is an important part of the total suspended particulate matter in the ambient air and seriously affects the health and travel of residents and road users.

At present, the general method for reducing dust is to sprinkle water with a sprinkler. However, there are many disadvantages in the traditional sprinkler, such as the slow running speed of the sprinkler, which is greatly different from the speed of urban road traffic, conflicts with the principles of urban traffic flow operation and control, seriously hinders traffic, has potential safety hazards, and reduces road traffic capacity. . Another example is the high pressure and spray speed of the sprinkler water gun, which also brings inconvenience and potential safety hazards to pedestrians. Moreover, the method of using sprinklers has poor flexibility, time-consuming scheduling and work, not only wasting water resources, but also wasting fuel and other energy sources, causing varying degrees of waste of human resources and material resources, and the effect is poor. According to the needs, control anytime and anywhere is increasingly unable to adapt to the fast pace of people's modern life. Therefore, a new urban road dust control method is urgently needed, which can save manpower and material resources, and can carry out intelligent control. Governance effect.

Contents of the invention

In view of this, the present invention provides an urban road intelligent water spray dust removal system to overcome the above technical problems.

The urban road intelligent water spray dust removal system provided by the present invention includes a water spray device, a control module and an air quality monitoring module for monitoring air quality parameters, the input end of the water spray device is connected to the output end of the control module, and the The output end of the air quality monitoring module is connected with the input end of the control module;

The sprinkler device includes a sprinkler head, a water pipe and a driving module for controlling the opening, closing and rotation of the sprinkler head. The sprinkler head is arranged on a light pole for illuminating street lamps. The sprinkler head is connected to the water pipe, and the driving module is connected to a control module.

Further, the air quality monitoring module is set on a light pole for illuminating street lamps, and the air quality parameters include concentrations of SO ₂ , NO ₂ , PM ₁₀ , PM _2.5 and airborne dust.

Further, the control module includes at least a sprinkler control unit, a sprinkler control unit and a comparator,

The nozzle control unit is used to calculate the optimal water spraying speed and the rotation speed of the nozzle. By controlling the nozzle, while rotating at a uniform speed in the horizontal direction, it rotates vertically so that the sprinkling area is rectangular.

The water spray volume control unit is used to calculate the water spray volume for eliminating pollutants according to the collected air quality parameter information,

The comparator is used to set the air quality parameter threshold value, and when the collected air quality parameter value exceeds the preset threshold value, the control module controls the sprinkler device to start.

Further, an alarm module is also included, and the alarm module is connected with the control module. When the sprinkler device is started, the concentration of air pollutants detected by the air quality monitoring module is still higher than the threshold within a preset time, and the alarm module is used for alarming. .

Further, it also includes a cloud server and a mobile terminal device used for being carried by the person on duty, the cloud server is connected to the control module, the mobile terminal device is wirelessly connected to the cloud server, the alarm module sends the alarm information to the cloud server, and the server sends the alarm The information is matched with the mobile terminal equipment, and the alarm information is sent to the mobile terminal equipment of the person on duty corresponding to the area.

Further, a timing module is also included, the timing module is connected with the control module, and is used to turn on or turn off the water spray device at a predetermined time.

Further, an early warning module is also included, the early warning module is connected with the control module, and is used for warning in advance before the sprinkler starts to work.

Further, a manual control module for manually adjusting water spray parameters is also included.

Further, the optimal water outlet speed is obtained by the following formula:

${\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; 0</span>}}<span\; class="notranslate">\; =</span>\sqrt{\frac{{\mathrm{<span\; class="notranslate">\; GR</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}}{\mathrm{<span\; class="notranslate">\; R</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; h</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; h</span>}}}$

Among them, V ₀ is the optimal water outlet velocity, H is the nozzle arrangement height, h is the height of the green belt, and R is the maximum radius of action.

Beneficial effects of the present invention: the intelligent water spray and dust removal system for urban roads in the present invention can not only be used for dust removal and air purification by installing sprinkler heads on street lamp poles and controlling them to rotate and spray water in a specific way. Moreover, it can also irrigate green belts, provide emergency fire rescue, and can also be used as a means of cooling when the temperature is high in summer. The invention can effectively improve the sprinkling efficiency and save water resources. Especially for arid areas, the rational and efficient use of water resources is very important. Compared with the traditional sprinkler dust removal method, the present invention realizes real intelligence, and realizes intelligent control of automatic watering on the road at any position and any time covered by the pipe network without affecting the road traffic capacity, which is not only suitable for Urban road planning can also be implemented in existing roads.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and embodiment:

Fig. 1 is a schematic diagram of the principle of the present invention.

Fig. 2 is a schematic flow chart of the present invention.

detailed description

The present invention will be further described below in conjunction with drawings and embodiments: Fig. 1 is a schematic diagram of the principle of the present invention, and Fig. 2 is a schematic flow chart of the present invention.

As shown in Figure 1, the urban road intelligent water spray dust removal system includes a water spray device, a control module and an air quality monitoring module for monitoring air quality parameters, the input end of the water spray device is connected to the output end of the control module, The output end of the air quality monitoring module is connected to the input end of the control module; the sprinkler device includes a sprinkler head, a water pipe and a driving module for controlling the opening, closing and rotation of the sprinkler head, and the sprinkler head is arranged on the lamp of the lighting street lamp The rod is connected with the water pipe, and the drive module is connected with the control module. In this embodiment, water spraying devices and detection devices can be installed on the basis of existing urban road construction, and planning and construction can also be carried out uniformly when new road facilities are newly built, so as to realize the parallel laying of water supply pipe networks on urban road lighting lines. The sprinkler system is combined with lighting street lights.

In this embodiment, the air quality monitoring module is set on a light pole for illuminating street lamps, and the air quality parameters include the concentration of SO ₂ , NO ₂ , PM ₁₀ , PM _2.5 and airborne dust. The control module at least includes a sprinkler control unit, a sprinkler control unit, and a comparator. This embodiment also includes a timing module, which is connected to the control module and used to turn on or off the sprinkler at a predetermined time. The nozzle control unit is used to calculate the optimal water spray speed and the nozzle rotation speed. By controlling the nozzle, while rotating at a constant speed in the horizontal direction, it rotates vertically so that the sprinkling area is rectangular. The air quality parameter information is used to calculate the amount of water sprayed to eliminate pollutants. The comparator is used to set the air quality parameter threshold. When the collected air quality parameter value exceeds the preset threshold, the control module controls the water spray device to start. The threshold in this embodiment includes a single threshold and a comprehensive threshold. The single threshold is set according to the concentration of each single pollutant in the air. The single threshold is multiple. When the concentration of any pollutant exceeds the preset single threshold When the value of , the sprinkler is automatically controlled to work. Urban air pollutants mainly include SO ₂ , NO ₂ , PM ₁₀ , PM _2.5 , etc. Flying dust is a hydrophilic substance. Suspended particles can combine with water to form heavier particles and scatter on the ground to achieve the purpose of dust removal. Therefore, water can be used to reduce urban pollution. concentration of the substance. The concentration value of each pollutant monitored is recorded as C _i , and the concentration C _i0 of each single pollutant is set. When C _i is greater than C _i0 , it will have a greater impact on human health and needs to be controlled. By setting the concentration of each pollutant C _i0 is set as a single threshold. When this threshold is reached, the sprinkler device is automatically turned on to sprinkle water to achieve the purpose of dust removal. In this embodiment, the comprehensive threshold value is to use the expert method to assign the hazard weight value of each pollutant. On this basis, the urban pollution degree is calculated based on attribute mathematics, and the urban air quality is divided into k levels. When the air quality is lower than n When the level is reached, the sprinkler device will be turned on automatically. Using multiple indicators to evaluate the comprehensive threshold value of urban pollutant pollution: Let X be the object space, and the evaluation object x represents the air quality where a specific detection device is located, and F is the attribute space of the research object. In this embodiment, it refers to the hazard impact degree.

Assume that each element x in the object space X has m indicators, denoted as I ₁ I ₂ ,...,I _m , and the measured value of the jth index I _j of the i-th element x _i is denoted as x _ij , then Xi can be expressed as a vector x _i =(x _i1 , x _i2,..., x _im ).

Assume that a strong order partition of the attribute measurement space F is {C ₁ ,C ₂ ,...,C _k }, and the classification standard of each index is known, then it can be expressed in matrix form as:

Among them, a _i1 <a _i2 <a _i3 <...<a _i5 , b _i1 <b _i2 <b _i3 ...<b _i5 .

Calculate the attribute measurement interval of the measured value X _i of a specific index i with attribute C _k (k=1,2,3,4,5), that is

$<span\; class="notranslate">\; \&lsqb;</span>{\mathrm{<span\; class="notranslate">\; u</span>}}_{\mathrm{<span\; class="notranslate">\; i</span>}\mathrm{<span\; class="notranslate">\; k</span>}}<span\; class="notranslate">\; \&rsqb;</span><span\; class="notranslate">\; =</span><span\; class="notranslate">\; \&lsqb;</span>\underset{<span\; class="notranslate">\; \&OverBar;</span>}{{\mathrm{<span\; class="notranslate">\; u</span>}}_{\mathrm{<span\; class="notranslate">\; i</span>}\mathrm{<span\; class="notranslate">\; k</span>}}}<span\; class="notranslate">\; ,</span>\stackrel{<span\; class="notranslate">\; \&OverBar;</span>}{{\mathrm{<span\; class="notranslate">\; u</span>}}_{\mathrm{<span\; class="notranslate">\; i</span>}\mathrm{<span\; class="notranslate">\; k</span>}}}<span\; class="notranslate">\; \&rsqb;</span>$

When x _i <a _i1 , take u _i1 =1, u _i2 =... u _i5 =0;

When x _i ≤ b _i1 , take

When x _i ≥a _i5 , take u _i5 =1, u _i1 =... u _i4 =0;

When x _i ≥ b _i5 , take

When a _il ≤ x _i ≤ a _i(l+1) , take

(k<l or k>l+1)

When b _il ≤ x _i ≤ b _i(l+1) , take

(k<l or k>l+1)

In this embodiment, the weights of each index can be obtained by the expert method, and the weight of the index I _i is recorded as W _i , after obtaining the attribute measurement interval of each index I _i , since the weight W _i of each index is known, That is to calculate the attribute measurement interval of each pollutant with attribute C _k (k=1, 2, 3, 4, 5):

$<span\; class="notranslate">\; \&lsqb;</span>{\mathrm{<span\; class="notranslate">\; u</span>}}_{\mathrm{<span\; class="notranslate">\; k</span>}}<span\; class="notranslate">\; \&rsqb;</span><span\; class="notranslate">\; =</span><span\; class="notranslate">\; \&lsqb;</span>\underset{<span\; class="notranslate">\; \&OverBar;</span>}{{\mathrm{<span\; class="notranslate">\; u</span>}}_{\mathrm{<span\; class="notranslate">\; k</span>}}}<span\; class="notranslate">\; ,</span>\stackrel{<span\; class="notranslate">\; \&OverBar;</span>}{{\mathrm{<span\; class="notranslate">\; u</span>}}_{\mathrm{<span\; class="notranslate">\; k</span>}}}<span\; class="notranslate">\; \&rsqb;</span>$

in:

Then the attribute measurement interval is averaged, so that

Then the category of the pollution degree of the pollutant can be judged according to the confidence criterion:

In the formula, according to the modeling experience, the value of λ is 0.7, and the k value calculated according to the above steps means that the pollution degree of the pollutant belongs to the C _k category, is the attribute measure after averaging.

It is preset to turn on the water spray device when the air quality is lower than class K.

This embodiment also includes an alarm module, the alarm module is connected with the control module, when the sprinkler device is started, the concentration of air pollutants detected by the air quality monitoring module is still higher than the threshold within the preset time, and the alarm module is used to monitor the concentration of air pollutants. Call the police.

In this embodiment, it also includes a cloud server and a mobile terminal device that is used for the on-duty personnel to carry, the cloud server is connected to the control module, the mobile terminal device is wirelessly connected to the cloud server, and the alarm module sends the alarm information to the cloud server , the server matches the alarm information with the mobile terminal device, and sends the alarm information to the mobile terminal device of the corresponding duty officer in charge of the area. In this implementation, an information database is established to store the information of maintenance personnel, shift time, and the IP number of each mobile terminal carried by each person, and upload it to the cloud. The information in the on-duty information database can be changed and called at any time. After receiving an alarm, the fault information database in the cloud is automatically extracted And maintenance personnel on-duty information database information, through calculation and matching, the fault information of the sprinkler device is transmitted to the mobile terminal of the on-duty maintenance personnel. This embodiment also includes an early warning module, which is connected to the control module and is used to warn in advance before the sprinkler starts to work, and the water sprinkling can be predicted in advance by setting special music or the like. This embodiment also includes a manual control module for manually adjusting the water spray parameters, and can manually adjust and set the water spray parameters when there is a special need.

In this embodiment, due to the urban road lighting street lights are arranged in symmetrical, staggered, and two-sided styles in the middle. In order to ensure the effect of full coverage of sprinkler on the road surface, the effective area of sprinkler head group of each street light pole is calculated. Assuming that the width of the urban road is D, the interval of street lamps arranged symmetrically is S ₁ , the interval of street lamps arranged in a staggered manner is S ₂ , and the effective area of sprinkler heads of each street lamp pole is the same as S:

S＝S ₁ ·D/2

R ₀ is the same when the street lights are arranged in a symmetrical and staggered way, and the formula is:

${\mathrm{<span\; class="notranslate">\; R</span>}}_{\mathrm{<span\; class="notranslate">\; 0</span>}}<span\; class="notranslate">\; =</span>\frac{\mathrm{<span\; class="notranslate">\; 1</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}\sqrt{{\mathrm{<span\; class="notranslate">\; S</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; D.</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}}$

Assuming that the height of the sprinkler arrangement is H, the height of the green belt is h, the angle between the center line of the effective vertical range of the water flow and the horizontal line is α, the water outlet velocity V ₀ and the maximum radius of action R ₀ , the time for the water flow to spray from the nozzle is t

The farthest point of the sprayed water falls on the highest point of the plants in the green belt, which can not only meet the functions of dust removal and pollutant removal, but also water the green belt. In order to meet this requirement, the relationship between the parameters is as follows: (assuming that water sprays out in the air without resistance)

$\mathrm{<span\; class="notranslate">\; h</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; h</span>}<span\; class="notranslate">\; =</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; 0</span>}}\mathrm{<span\; class="notranslate">\; sin</span>}\mathrm{<span\; class="notranslate">\; \&alpha;</span>}<span\; class="notranslate">\; \&CenterDot;</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; -</span>\frac{\mathrm{<span\; class="notranslate">\; 1</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}\mathrm{<span\; class="notranslate">\; g</span>}<span\; class="notranslate">\; \&CenterDot;</span>{\mathrm{<span\; class="notranslate">\; t</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}$

${\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; 0</span>}}<span\; class="notranslate">\; =</span>\frac{\mathrm{<span\; class="notranslate">\; R</span>}}{\mathrm{<span\; class="notranslate">\; t</span>}\mathrm{<span\; class="notranslate">\; c</span>}\mathrm{<span\; class="notranslate">\; o</span>}\mathrm{<span\; class="notranslate">\; the\; s</span>}\mathrm{<span\; class="notranslate">\; \&alpha;</span>}}$

Among them, H ₀ is the height of street lamps, H′ is the height limit of urban roads, and the position of traffic participants in urban road vehicles is below H″. As the height of sprinklers is increased, the water supply pressure also needs to be increased. From the perspective of energy, consider the sprinkler The higher the setting, the less economical it is, so set the height of the nozzle at H, ie II"<II<II')

The spraying accuracy of the nozzle in this embodiment is not required to be very high. When the α angle is 45 degrees, the head is the largest. Since the H, R and α angles are known in practical problems, V ₀ can be jointly calculated.

${\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; 0</span>}}<span\; class="notranslate">\; =</span>\sqrt{\frac{{\mathrm{<span\; class="notranslate">\; GR</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}}{\mathrm{<span\; class="notranslate">\; R</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; h</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; h</span>}}}$

In this embodiment, when the concentration of each pollutant and dust is C _i , the difference between them exceeding the respective threshold value C _i0 is ΔC _i0 , assuming that within a unit volume, the mass of water absorbed by a unit concentration of pollutants is K _i , The ideal watering amount is then:

Q＝ΣS·H·ΔC _i0 ·K _i

The water loss of the nozzle is determined to be n% by the test. Then the actual watering amount is

Q ₀ =Q/[1-n%).

In this embodiment, the sprinkling area is rectangular by controlling the rotation mode of the sprinkler head group on each street light pole. The rotation mode is to control the sprinkler head group to rotate vertically while rotating at a uniform speed . Since the sprinkling area is square, the sprinkling overlap can be reduced, and the amount of sprinkling can be saved compared with arc sprinkling. In this embodiment, the effective vertical sprinkling angle of the sprinkler head is θ, and only a part of it can be covered during each left and right swing. Assuming that it needs to be divided into n areas to fully cover the entire effective area, calculate the speed of the nozzle when it rotates left and right, up and down, and the alternate time when changing lines should be considered. If the full coverage needs to be divided into n areas, then at the water outlet speed V ₀ , the water output per unit time of the sprinkler is Q. In order to ensure uniform watering, the watering cycle is set to be m rounds. When the actual total watering is Q ₀ , The amount of water sprayed in each round is Q ₀ /m.

Then in each round of watering, in each area, the amount of watering is:

Q'=Q ₀ /(m·n)

The watering time of each area is equal, which is:

$\mathrm{<span\; class="notranslate">\; T</span>}<span\; class="notranslate">\; =</span>\frac{{\mathrm{<span\; class="notranslate">\; Q</span>}}^{<span\; class="notranslate">\; \&prime;</span>}}{\mathrm{<span\; class="notranslate">\; Q</span>}}<span\; class="notranslate">\; =</span>{\mathrm{<span\; class="notranslate">\; Q</span>}}_{\mathrm{<span\; class="notranslate">\; 0</span>}}<span\; class="notranslate">\; /</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; m</span>}<span\; class="notranslate">\; \&CenterDot;</span>\mathrm{<span\; class="notranslate">\; no</span>}<span\; class="notranslate">\; \&Center\; Dot;</span>\mathrm{<span\; class="notranslate">\; Q</span>}<span\; class="notranslate">\; )</span>$

Then the left and right rotation speed of the sprinkler head when sprinkling in area i is calculated as follows:

${\mathrm{<span\; class="notranslate">\; \&beta;</span>}}_{\mathrm{<span\; class="notranslate">\; i</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; arctan</span>}\frac{\mathrm{<span\; class="notranslate">\; the\; s</span>}<span\; class="notranslate">\; \&Center\; Dot;</span>\mathrm{<span\; class="notranslate">\; no</span>}}{\mathrm{<span\; class="notranslate">\; D.</span>}<span\; class="notranslate">\; \&Center\; Dot;</span>\mathrm{<span\; class="notranslate">\; i</span>}}$

ω _i =β _i /T

Among them, β _i is the left and right rotation angle of the nozzle when the nozzle is spraying water in the area i, T is the rotation time, W _i is the left and right rotation speed, and s is the distance between the street lamp poles, that is, S ₁ or S ₂ .

In the present embodiment, by oblique throwing equation of object:

$\mathrm{<span\; class="notranslate">\; h</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; h</span>}<span\; class="notranslate">\; =</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; 0</span>}}\mathrm{<span\; class="notranslate">\; sin</span>}\mathrm{<span\; class="notranslate">\; \&alpha;</span>}<span\; class="notranslate">\; \&CenterDot;</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; -</span>\frac{\mathrm{<span\; class="notranslate">\; 1</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}\mathrm{<span\; class="notranslate">\; g</span>}<span\; class="notranslate">\; \&CenterDot;</span>{\mathrm{<span\; class="notranslate">\; t</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}$

R＝V ₀ cosα·t

Solutions have to

$\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; -</span>\frac{{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; 0</span>}}\mathrm{<span\; class="notranslate">\; sin</span>}\mathrm{<span\; class="notranslate">\; \&alpha;</span>}<span\; class="notranslate">\; +</span>\sqrt{{<span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; V</span>}}^{\mathrm{<span\; class="notranslate">\; 0</span>}}\mathrm{<span\; class="notranslate">\; sin</span>}\mathrm{<span\; class="notranslate">\; \&alpha;</span>}<span\; class="notranslate">\; )</span>}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; g</span>}\mathrm{<span\; class="notranslate">\; h</span>}}}{\mathrm{<span\; class="notranslate">\; g</span>}}$

available

At the same time, as the nozzle rotates at a constant speed left and right, the head of the water spray is also changing. The calculation method of the head change equation is as follows:

$\mathrm{<span\; class="notranslate">\; R</span>}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; T</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; =</span>\frac{\mathrm{<span\; class="notranslate">\; i</span>}}{\mathrm{<span\; class="notranslate">\; no</span>}}<span\; class="notranslate">\; *</span>\frac{\mathrm{<span\; class="notranslate">\; D.</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}\sqrt{\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; the\; tan</span>}<span\; class="notranslate">\; (</span>\frac{{\mathrm{<span\; class="notranslate">\; \&beta;</span>}}_{\mathrm{<span\; class="notranslate">\; i</span>}}}{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; \&omega;</span>}}_{\mathrm{<span\; class="notranslate">\; i</span>}}\mathrm{<span\; class="notranslate">\; T</span>}<span\; class="notranslate">\; )</span>}$

Simultaneous equations get

$\frac{{{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; 0</span>}}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}\mathrm{<span\; class="notranslate">\; sin</span>}\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; \&alpha;</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; g</span>}}<span\; class="notranslate">\; +</span><span\; class="notranslate">\; \&lsqb;</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; +</span>\sqrt{\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; +</span>\frac{\mathrm{<span\; class="notranslate">\; 4</span>}\mathrm{<span\; class="notranslate">\; g</span>}\mathrm{<span\; class="notranslate">\; h</span>}}{{{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; 0</span>}}}^{\mathrm{<span\; class="notranslate">\; 3</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; cos</span>}\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; \&alpha;</span>}<span\; class="notranslate">\; )</span>}}<span\; class="notranslate">\; \&rsqb;</span><span\; class="notranslate">\; =</span>\frac{\mathrm{<span\; class="notranslate">\; i</span>}}{\mathrm{<span\; class="notranslate">\; no</span>}}<span\; class="notranslate">\; *</span>\frac{\mathrm{<span\; class="notranslate">\; D.</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}\sqrt{\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; the\; tan</span>}<span\; class="notranslate">\; (</span>\frac{{\mathrm{<span\; class="notranslate">\; \&beta;</span>}}_{\mathrm{<span\; class="notranslate">\; i</span>}}}{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; \&omega;</span>}}_{\mathrm{<span\; class="notranslate">\; i</span>}}\mathrm{<span\; class="notranslate">\; T</span>}<span\; class="notranslate">\; )</span>}$

Therefore, where H, D, and V ₀ β _i are known, the function of α can be obtained.

Preferably, after the calculated actual water output is sprayed, the air quality monitoring device checks the concentration of pollutants and dust, and if the concentration reaches a safe level, the nozzle can be turned off. If not, repeat the sprinkling. In the case of continuous n times of sprinkler activation, the concentration of air pollutants detected by the air quality monitoring module is still higher than the threshold. In the case of excluding extreme environments, it is estimated that the sprinkler system is faulty, and a quick response is made through the mobile terminal. The mobile terminal in this embodiment can use a smartphone or other mobile smart devices. In this embodiment, an air quality detection device can be installed on each street lamp pole. Of course, in order to save costs, the street lamps can also be grouped by area , each group is equipped with an air quality detection device to achieve coverage detection of the entire area. Each detection device in the area is equipped with an identification module to perform unique identification and record location information. The alarm information of the identification code and specific location information is transmitted to the mobile terminal, which can greatly improve the efficiency of maintenance.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements without departing from the spirit and scope of the technical solution of the present invention shall be covered by the claims of the present invention.

Claims (9)

1. A city road intelligent water spray dust removal system is characterized in that: comprise water spray device, control module and the air quality monitoring module that is used to monitor air quality parameter, the input end of described water spray device and the output end of control module connected, the output end of the air quality monitoring module is connected to the input end of the control module; The sprinkler device includes a sprinkler head, a water pipe and a driving module for controlling the opening, closing and rotation of the sprinkler head. The sprinkler head is arranged on a light pole for illuminating street lamps. The sprinkler head is connected to the water pipe, and the driving module is connected to a control module. 2. The urban road intelligent sprinkler and dust removal system according to claim 1, characterized in that: the control module at least comprises a sprinkler control unit, a sprinkler control unit and a comparator, The nozzle control unit is used to calculate the optimal water spraying speed and the rotation speed of the nozzle. By controlling the nozzle, while rotating at a uniform speed in the horizontal direction, it rotates vertically so that the sprinkling area is rectangular. The water spray volume control unit is used to calculate the water spray volume for eliminating pollutants according to the collected air quality parameter information, The comparator is used to set the air quality parameter threshold value, and when the collected air quality parameter value exceeds the preset threshold value, the control module controls the sprinkler device to start. 3. The urban road intelligent water spraying dust removal system according to claim 2, characterized in that: it also includes an alarm module, the alarm module is connected with the control module, and when the sprinkler device is started, the air pollution detected by the air quality monitoring module If the concentration of the substance is still higher than the threshold within the preset time, an alarm will be issued through the alarm module. 4. The urban road intelligent water spraying and dedusting system according to claim 3, characterized in that: it also includes a cloud server and a mobile terminal device carried by a person on duty, the cloud server is connected with the control module, and the mobile terminal device Wirelessly connected to the cloud server, the alarm module sends the alarm information to the cloud server, and the server matches the alarm information with the mobile terminal device, and sends the alarm information to the mobile terminal device of the person on duty corresponding to the area. 5. The intelligent water spraying and dust removal system for urban roads according to claim 1, characterized in that: the air quality monitoring module is set on the light pole of the lighting street lamp, and the air quality parameters include SO ₂ , NO ₂ , PM ₁₀ , Concentrations of PM _2.5 and airborne dust. 6. The urban road intelligent water spraying and dust removal system according to claim 1, further comprising a timing module, the timing module is connected with the control module, and is used to turn on or off the water spraying device at a predetermined time. 7. The intelligent water spraying and dust removal system for urban roads according to claim 1, further comprising an early warning module connected to the control module for warning in advance before the water spraying device starts to work. 8. The intelligent water spraying and dust removal system for urban roads according to claim 1, further comprising a manual control module for manually adjusting water spraying parameters. 9. The urban road intelligent water spray dust removal system according to claim 1, characterized in that: the optimal water outlet speed is obtained by the following formula: ${\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; 0</span>}}<span\; class="notranslate">\; =</span>\sqrt{\frac{{\mathrm{<span\; class="notranslate">\; GR</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}}{\mathrm{<span\; class="notranslate">\; R</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; h</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; h</span>}}}$ Among them, V ₀ is the optimal water outlet velocity, H is the nozzle arrangement height, h is the height of the green belt, and R is the maximum radius of action.