CN106351166A - Intelligent water spray and dust removal method for urban road - Google Patents

Abstract

The invention provides an intelligent water spray and dust removal method for an urban road. The method includes the steps: a mounting sprinkler heads on street lamp posts; b calculating the effective action area and optimal water outlet speed of a sprinkler head group on each street lamp post; c setting a start threshold, detecting air quality of an ambient environment and automatically controlling the sprinkler heads to work according to detection results of the air quality of the environment. According to the intelligent water spray and dust removal method for the urban road, the sprinkler heads are mounted on the street lamp posts and controlled to rotatably spray water in a specific mode, dust can be removed, air can be purified, a green belt is irrigated, emergency fire rescue is achieved, high temperature can be reduced in summer, water spray efficiency can be effectively improved, and water resources are saved.

Description

Urban road intelligent spraying dust collection method

Technical field

The present invention relates to urban traffic control field, more particularly, to a kind of urban road intelligent spraying dust collection method.

Background technology

With the continuous improvement of China's economic level, the step of Process of Urbanization Construction is accelerated year by year, and the road in city is increasingly Many, but urban road, particularly in the urban road in the area of drought, due to passing through of vehicle, lead on ground Dust drives in wind-force and other drives are flown upward and entered air, causes open contact scar, is total suspension in surrounding air The important component part of grain thing, has had a strong impact on the healthy and trip of resident and road user.

At present, for reduce airborne dust general approach be to use sprinkler.But traditional sprinkling truck exists and much lacks Point, such as the sprinkling truck speed of service are slow, big with urban road flow speeds difference, and that runs with urban traffic flow and control is former Then mutually conflict, seriously block the traffic, there is potential safety hazard, and reduce road passage capability.And for example the high pressure of sprinkling truck hydraulic giant and Spray speed is also made troubles for pedestrian and potential safety hazard.And very flexible by the way of sprinkling truck, scheduling and work are time-consuming many, Not only waste water resource, and waste other energy such as fuel oil, different journeys are all caused to human resourcess and material resources The waste of degree, and effect is poor is controlled whenever and wherever possible it is impossible to as needed, increasingly cannot adapt to people existing The fast pace of generation life, therefore, needs a kind of new urban road Dust Improvement means badly, can energy-conservation manpower and materials, and energy Enough carry out Based Intelligent Control, mention the regulation effect of airborne dust.

Content of the invention

In view of this, the present invention provides a kind of urban road intelligent spraying dust collection method, to overcome above-mentioned technical problem.

The urban road intelligent spraying dust collection method that the present invention provides, including

A. on street lamp post, sprinkler tip is installed,

B. calculate the effective active area of sprinkler tip group on each street lamp post and optimum go out water speed,

C. setting starts threshold value and detects the air quality of surrounding, the testing result of the air quality according to environment, Automatically control sprinkler tip to be operated.

Further, the startup threshold value in step c includes single threshold and composite thresholds, and described single threshold is according to each list of in the air The concentration of item pollutant sets, and described single threshold is multiple, presets single threshold when the concentration of any one pollutant exceedes Value when, automatically control sprinkler tip and be operated.

Further, described composite thresholds are included by each hazard of contaminant tax weights in the air, and to pollution level Calculated, air quality classification, when air quality is less than certain rank, is automatically turned on Sprinkler.

Further, the determination method of composite thresholds specifically includes:

Judge the pollution level generic of pollutant according to Reliability Code:

Wherein, λ value is that the pollution level that 0.7, k is pollutant belongs to c_kClass,Attribute after processing for equalization is surveyed Degree.

Further, in step b, optimum is gone out water speed and is obtained by equation below:

$v_0=\sqrt{\frac{{\mathrm{gr}}^2}{r+h-h}}$

Wherein, v₀Go out water speed for optimum, h is nozzle layout of sprinkler height, h is greenbelt height, and r is maximum effect radius.

Further, by equation below acquisition watering amount:

q₀=q/ (1-n%)

Wherein, n% is shower nozzle water loss percentage ratio, and wherein q0 is actual watering total amount, and q is preferable watering total amount, andδc_i0Concentration for detecting every pollutant of surrounding exceedes corresponding single threshold Difference, s is the effective active area of each street lamp post sprinkler tip group, and h is nozzle layout of sprinkler height, k_iDirt for unit concentration The quality of the water that dye thing absorbs.

Further, by controlling the rotating manner of the sprinkler tip group on each street lamp post so as to watering area is square Shape, described rotating manner is to control sprinkler tip group while uniform rotation in the horizontal direction, carries out vertical rotation.

Beneficial effects of the present invention: the urban road intelligent spraying dust collection method in the present invention, by street lamp post Sprinkler tip is installed, and controls it to carry out in a particular manner rotating water spray work, dedusting, purify air not only can be used for, But also greenbelt can be irrigated, and urgent fire rescue, also can be used as a kind of means of cooling during summer high-temperature, invention can have Effect improves watering efficiency, saving water resource, and especially for arid area, the reasonable efficient utilization of water resource is most important, this Bright with respect to traditional sprinkling truck dedusting method it is achieved that the intellectuality of real meaning, before not affecting road passage capability Put it is achieved that any position any time covering in pipe network controls Self-watering to intelligent road, be applicable not only to city The planning of road, equally can also implement in existing road.

Brief description

The invention will be further described with reference to the accompanying drawings and examples:

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

Fig. 2 is the schematic flow sheet of the present invention.

Specific embodiment

The invention will be further described with reference to the accompanying drawings and examples: Fig. 1 is the principle schematic of the present invention.Fig. 2 It is the schematic flow sheet of the present invention.

As shown in Figure 1, 2, urban road intelligent spraying dust collection method, including

A. on street lamp post, sprinkler tip is installed,

B. calculate the effective active area of sprinkler tip group on each street lamp post and optimum go out water speed,

C. setting starts threshold value and detects the air quality of surrounding, the testing result of the air quality according to environment, Automatically control sprinkler tip to be operated.

In the present embodiment, water injector and detection means can be installed additional on the basis of existing urban road construction, Can also unify in newly-built road equipment to carry out planning construction, realize city illumination line parallel and lay water supply network, Sprinkler system is combined with illuminating street lamp.

In the present embodiment, the startup threshold value in step c includes single threshold and composite thresholds, and described single threshold is according to air In each individual event pollutant concentration set, described single threshold be multiple, preset when the concentration of any one pollutant exceedes During the value of single threshold, automatically control sprinkler tip and be operated.Urban air pollution thing mainly has so₂、no₂、pm₁₀,pm_2.5Deng, Airborne dust is all hydroaropic substance, and particle can be combined into heavier granule ground of being scattered with water and reach dedusting purpose, therefore available Sprinkle water and to reduce the concentration of urban pollutant.The concentration value monitoring each pollutant is designated as c_i, the concentration of each individual event pollutant is set c_i0, work as c_iMore than c_i0When, larger to person health effect, need to be controlled, by by the concentration c of every pollutant_i0If It is set to single threshold, when reaching this threshold value, automatically turns on Sprinkler, sprinkled water, to reach the purpose of dedusting.

In the present embodiment, composite thresholds are to assign weights using expert method to each hazard of contaminant, are based on this basis Attribute mathematicses calculate to municipal pollution degree, and urban air-quality is divided into k level, when air quality is less than n level, automatically Open Sprinkler.With multi objective, composite thresholds are evaluated to urban pollutant pollution level: set x as object space, its Evaluation object x represents the air quality at certain concrete detection means place, and f is the attribute space of object of study, in the present embodiment Refer to harm influence degree.

If each of object space x element x has m index, it is designated as i₁i₂,...,i_m, i-th element x_iJth Individual index i_jMeasured value be designated as x_ij, then x_iA vector x can be expressed as_i=(x_i1,x_i2,...,x_im).

A strong sequence setting attribute measure space f again is divided into { c₁,c₂,...,c_k, and the classification of each index known Standard, then it is expressed as with matrix form:

Wherein, a_i1＜ a_i2＜ a_i3＜ ... ＜ a_i5, b_i1＜ b_i2＜ b_i3... ＜ b_i5.

Calculate the measured value x of some specific index i_iThere is attribute c_kThe attributive measure function of (k=1,2,3,4,5), I.e.

$\[u_{ik}\]=\[\underset{\&overbar;}{u_{ik}},\stackrel{\&overbar;}{u_{ik}}\]$

Work as x_i<a_i1When, take

Work as x_i≤b_i1When, take

Work as x_i≥a_i5When, take

Work as x_i≥b_i5When, take

Work as a_il≤x_i≤a_i(l+1)When, take

(k<l or k>l+1)

Work as b_il≤x_i≤b_i(l+1)When, take

(k<l or k>l+1)

In the present embodiment, each index weights can be drawn by expert method, by index i_iWeight be designated as w_i, each obtaining Item index i_iAttributive measure function after, due to weight w of each index_iIt is known that each pollutant can be calculated there is attribute c_k(k= 1,2,3,4,5) attributive measure function:

$\&lsqb;u_k\&rsqb;=\&lsqb;\underset{\&overbar;}{u_k},\stackrel{\&overbar;}{u_k}\&rsqb;$

Wherein:

Again attributive measure function is carried out equalization process, order

Then the pollution level generic of pollutant can be judged according to Reliability Code:

In formula, according to modeling experience, λ value is 0.7, is the pollution journey of pollutant according to the k value that above-mentioned steps are obtained Degree belongs to c_kClass,Attribute Measure after processing for equalization.

Then preset and open water injector when air quality is less than k class.

Originally it is being in embodiment, because city illumination street lamp is disposed with symmetrical expression, alternating expression, middle plus bilateral type. For ensureing the effect of road pavement watering all standing, calculate the effective active area of each street lamp post sprinkler tip group.If city Road plate width is d, and symmetrical expression arrangement street lamp is spaced apart s₁, alternating expression arrangement street lamp be spaced apart s₂, the watering of each street lamp post The effective active area phase of jet head sets is all s:

S=s₁·d/2

Street lamp is arranged as r when symmetrical expression and alternating expression₀Identical, formula is:

$r_0=\frac{1}{2}\sqrt{s^2+d^2}$

Assume that nozzle layout of sprinkler height h, greenbelt height are h, current longitudinal direction effective range centrage and horizontal angle For α, go out water speed v₀With maximum effect radius r₀, the time that current spray from shower nozzle is t

The drop point making jet water course solstics, at highest h of greenbelt plant, can meet the work of dedusting depollution thing With greenbelt can be watered again.For meeting this requirement, then the relation between each parameter is as follows: (assumes that water is ejected in air Middle non-resistance)

$h-h=v_0\sin \mathrm{\&alpha;}\&centerdot;t-\frac{1}{2}g\&centerdot;t^2$

$v_0=\frac{r}{tcos\mathrm{\&alpha;}}$

Wherein, h₀For street lamp height, h ' is urban road limit for height, and in urban road vehicle, the position of traffic participant is in h " Hereinafter, with the lifting of shower nozzle rational height, pressure of supply water is also required to be lifted, and from the point of view of the energy, shower nozzle setting is higher, More uneconomical, therefore the height of shower nozzle is located at h, i.e. ii " ＜ ii ＜ ii ')

The precision of the shower nozzle water spray in the present embodiment is not required for very high, selects when α angle is 45 degree, lift is maximum, by Obtain v in h, r and α angle it is known that can combine in practical problem₀.

$v_0=\sqrt{\frac{{\mathrm{gr}}^2}{r+h-h}}$

In the present embodiment, the concentration of each pollutant and airborne dust is c_iWhen, it exceeds respective threshold value c_i0Difference be δ c_i0, Assume in unit volume, the quality of the water of pollutant absorption of unit concentration is ki, then preferable watering total amount is:

Q=σ s h δ c_i0·k_i

Determine that shower nozzle water loss is n% by test.Then actual watering total amount is

q₀=q/ (1-n%).

In the present embodiment, by controlling the rotating manner of the sprinkler tip group on each street lamp post so as to watering face Amass as rectangle, described rotating manner is to control sprinkler tip group while uniform rotation in the horizontal direction, carries out vertical rotation. When being square due to watering area, it is overlapping to reduce watering, can save and spreads the water yield than arc watering, in the present embodiment, shower nozzle Angle of longitudinally effectively spraying water is θ, can only cover a portion during swinging every time.Assume to need to be divided into n area Domain could all cover whole effective active area, speed when calculating nozzle right, rotating upwardly and downwardly, and when being considered as line feed Alt time.If whole covering needs to be divided into n region, going out water speed v₀Under, shower nozzle unit interval water yield is q, For ensureing watering uniformly, set watering circulation for m wheel, then when actual watering total amount is q₀When, the water yield of spreading often taken turns is q₀/m.

Then in every wheel watering, in each region, watering amount is:

Q '=q₀/(m·n)

Each region watering time is all equal, is:

$t=\frac{q^{\&prime;}}{q}=q_0/(m\&centerdot;n\&centerdot;q)$

The speed calculation that then during the watering of i region, nozzle right rotates is as follows:

${\mathrm{\&beta;}}_i=2\arctan \frac{s\&centerdot;n}{d\&centerdot;i}$

ω_i=β_i/t

Wherein, β_iFor shower nozzle when region i sprinkles water nozzle right rotational angle, t be rotation time, w_iFor left-right rotation speed Degree, s is the distance between street lamp post, i.e. s₁Or s₂.

In the present embodiment, equation is tiltedly thrown by object:

$ii-h=v_{0}sin\mathrm{\&alpha;}\&centerdot;t-\frac{1}{2}g\&centerdot;t^2$

R=v₀cosα·l

Solve

$t-\frac{v_0\sin \mathrm{\&alpha;}+\sqrt{{\left(v_{0}sin\mathrm{\&alpha;}\right)}^2+2gh}}{g}$

Can ask

Meanwhile, with nozzle right uniform rotation, the lift of water spray is also changing, and the computational methods of lift equation of change are such as Under:

$r\left(t\right)=\frac{i}{n}*\frac{d}{2}\sqrt{1+\tan (\frac{{\mathrm{\&beta;}}_i}{2}-{\mathrm{\&omega;}}_{i}t)}$

Simultaneous equations obtain

$\frac{{v_0}^2\sin 2\mathrm{\&alpha;}}{2g}+\&lsqb;1+\sqrt{1+\frac{4gh}{{v_0}^2(1-\cos 2\mathrm{\&alpha;})}}\&rsqb;=\frac{i}{n}*\frac{d}{2}\sqrt{1+\tan (\frac{{\mathrm{\&beta;}}_i}{2}-{\mathrm{\&omega;}}_{i}t)}$

Therefore, h in formula, d, v₀β_i, it is it is known that the function of α then can be obtained.

Preferably, after the actual water yield of sprayed calculating, pollutant, airborne dust are veritified by atmosphere quality monitoring device Concentration, if reaching safe concentration, can close shower nozzle.If not up to, repeating to sprinkle water.Start in continuous n Sprinkler In the case of, air quality monitoring module monitors to air pollutant concentration be still above threshold value, exclusion extreme environment feelings Under condition, that is, estimate sprinkler system fault at this.Fault message is uploaded to by high in the clouds by alarm module, and sets up section and be responsible for value Class's information bank is simultaneously uploaded to high in the clouds.Set up information bank store the information of attendant, the time of arranging an order according to class and grade, everyone carry mobile terminal Ip number.It is uploaded to high in the clouds, control centre can change at any time and call information base information on duty.After control centre receives warning, Automatically extract high in the clouds fault message storehouse and attendant's information base information on duty, mated Sprinkler fault message by computing Reach the mobile terminal as value attendant, complete efficient Rapid matching and safeguard, mobile terminal can adopt smart mobile phone or its His intelligent movable equipment, in the present embodiment, air quality detecting device can be arranged on each street lamp post, of course for Cost-effective it is also possible to street lamp is grouped by region, every group setting one air quality detecting device, realize to whole area The covering detection in domain, each detection means setting identification module in region, carry out unique identification and record The warning information comprising identity code and specific positional information when a failure occurs, can be transferred to move by positional information Dynamic terminal, can greatly improve the efficiency of maintenance.

Finally illustrate, above example only in order to technical scheme to be described and unrestricted, although with reference to relatively Good embodiment has been described in detail to the present invention, it will be understood by those within the art that, can be to the skill of the present invention Art scheme is modified or equivalent, the objective without deviating from technical solution of the present invention and scope, and it all should be covered at this In the middle of the right of invention.

Claims (7)

1. a kind of urban road intelligent spraying dust collection method it is characterised in that: include

A. on street lamp post, sprinkler tip is installed,

B. calculate the effective active area of sprinkler tip group on each street lamp post and optimum go out water speed,

C. setting starts threshold value and detects the air quality of surrounding, the testing result of the air quality according to environment, automatically Sprinkler tip is controlled to be operated.

2. urban road intelligent spraying dust collection method according to claim 1 it is characterised in that: the actuation threshold in step c Value includes single threshold and composite thresholds, and described single threshold sets according to the concentration of in the air each individual event pollutant, described single threshold For multiple, when the concentration of any one pollutant exceedes the value presetting single threshold, automatically control sprinkler tip and carry out work Make.

3. urban road intelligent spraying dust collection method according to claim 2 it is characterised in that: described composite thresholds include By each hazard of contaminant tax weights in the air, and pollution level is calculated, by air quality classification, when air matter When amount is less than certain rank, automatically turn on Sprinkler.

4. urban road intelligent spraying dust collection method according to claim 3 it is characterised in that: the determination side of composite thresholds Method specifically includes:

Judge the pollution level generic of pollutant according to Reliability Code:

Wherein, λ value is that the pollution level that 0.7, k is pollutant belongs to c_kClass,Attribute Measure after processing for equalization.

5. urban road intelligent spraying dust collection method according to claim 1 it is characterised in that: optimum water outlet in step b Speed is obtained by equation below:

$v_0=\sqrt{\frac{{\mathrm{gr}}^2}{r+h-h}}$

Wherein, v₀Go out water speed for optimum, h is nozzle layout of sprinkler height, h is greenbelt height, and r is maximum effect radius.

6. urban road intelligent spraying dust collection method according to claim 5 it is characterised in that: obtained by equation below Watering amount:

q₀=q/ (1-n%)

Wherein, n% is shower nozzle water loss percentage ratio, wherein q₀For actual watering total amount, q is preferable watering total amount, and q=∑ s·h·δc_i0·k_i, δ c_i0Concentration for detecting every pollutant of surrounding exceedes the difference of corresponding single threshold Value, s is the effective active area of each street lamp post sprinkler tip group, and h is nozzle layout of sprinkler height, k_iPollution for unit concentration The quality of the water that thing absorbs.

7. urban road intelligent spraying dust collection method according to claim 1 it is characterised in that: by controlling each street lamp So as to watering area is rectangle, described rotating manner is to control sprinkler tip group to the rotating manner of the sprinkler tip group on lamp stand While uniform rotation in the horizontal direction, carry out vertical rotation.