CN208384622U - A kind of standard verifies the Drawing of Curve equipment of system to economic development impact evaluation model - Google Patents

Abstract

The utility model relates to a kind of standards to the Drawing of Curve equipment of economic development impact evaluation model verifying system, be designed for the technical issues of existing similar assessment models verifying system lacks Drawing of Curve equipment and hole point comparative apparatus is solved.The model curve figure of the equipment prints mechanism choice by planer-type；Its main points is that the controller of the planer-type printer connect by data line with computer, and the table top of pony sill is equipped with workbench and portal frame, and workbench is equipped with the netted point inductive head equidistantly arranged, and the row of portal frame wherein side takes turns central axis equipped with lower motor；The upper motor of portal frame top cross-bar one end passes through the screw rod connection on connector crossbeam, the edge of sliding slot and crossbeam upper and lower ends on the inside of the fixed plate upper and lower ends of screw rod and crossbeam side fastens, telescope motor is equipped on the outside of the upper end of fixed plate, the telescopic shaft of telescope motor is connect by connecting plate with drawing pen, and the lower end outside of fixed plate is equipped with the upper inductive head being aligned with telescope motor and distance-sensor.

Description

A kind of standard verifies the Drawing of Curve equipment of system to economic development impact evaluation model

Technical field

It is a kind of standard to economic development impact evaluation the utility model relates to the printing device of assessment models verifying system The Drawing of Curve equipment of model verifying system.

Background technique

Key element of the standard as support Quality Developing, reflects the technical level in a state (area), is regional economy In " Innovation Input-patent application-standard formulation " system output, in regional economy technological innovation and propagation play pass Key effect.About the theoretical research that standard and regional economy increase, domestic and international different researchers are analyzed from different perspectives, such as Influence of the analytical standard to economic benefit is come to different perspectivess such as output, technological innovation, trade, the industrial structures from standard.But it is existing There are the assessment models influenced for standard on economic development and verify less, lacks such model curve and verify the drafting of curve Equipment is especially the absence of large-scale plotting equipment and hole point comparative apparatus.

Summary of the invention

To overcome above-mentioned deficiency, the purpose of this utility model is to provide a kind of standard to this field to comment economic development influence The Drawing of Curve equipment for estimating model verifying system makes it mainly solve existing similar assessment models verifying system and lacks Drawing of Curve The technical issues of equipment and hole point comparative apparatus.The purpose is to what is be achieved through the following technical solutions.

A kind of standard verifies the Drawing of Curve equipment of system to economic development impact evaluation model, the Drawing of Curve equipment Model curve figure prints mechanism choice by planer-type；It is characterized in that the controller of the planer-type printer by data line with Computer connection, controller are set in pony sill, and the table top of pony sill is equipped with workbench and portal frame, and workbench is equipped with netted The point inductive head equidistantly arranged, the two sides bottom symmetrical of portal frame are equipped with symmetrically arranged row wheel two-by-two, between the row wheel of side It is respectively equipped with limit spacing, the workbench at the limit spacing is equipped with the limit parallel orbit of protrusion, at least within side Row wheel central axis is equipped with lower motor；Top cross-bar one end of portal frame is equipped with upper motor, and the transmission shaft of upper motor passes through connector Screw rod connection on crossbeam, the both ends of screw rod are respectively equipped with bearing, connect on the inside of screw rod and the fixed plate of crossbeam side, fixed plate The edge of sliding slot and crossbeam upper and lower ends on the inside of upper and lower ends fastens, and telescope motor is equipped on the outside of the upper end of fixed plate, stretches The telescopic shaft of motor is connect by connecting plate with drawing pen, and the lower end outside of fixed plate is equipped with the upper induction being aligned with telescope motor Head and distance-sensor, lower motor, upper motor, point inductive head, upper inductive head and distance-sensor pass through route and control respectively Device connection.To determine drawing pen on the displaced position and portal frame crossbeam of portal frame by inductive head and upper inductive head Displaced position, the displacement of portal frame drives row wheel is mobile to realize by lower motor, and the displacement of drawing pen is driven by upper motor Screw rod is mobile to be realized；The distance that drawing pen moves down is determined by distance-sensor, and is driven and stretched by telescope motor Bar, connecting plate realize that drawing pen moves down.

For the workbench at least provided with a portal frame, portal frame is respectively equipped with the upper motor, screw rod, fixation The row wheel of plate, telescope motor, drawing pen, lower motor, row wheel, connecting plate, upper inductive head and distance-sensor, portal frame is set respectively The limit parallel orbit of workbench is set, lower motor, upper motor, upper inductive head and distance-sensor are connected by route and controller It connects.Consequently facilitating the above-mentioned portal frame of multiple groups is drawn simultaneously, the speed of drawing is further increased.

The crossbeam of the portal frame and the fixed plate side at fixed plate fastening are equipped with symmetrically arranged idler wheel two-by-two.To Stablize movement on the crossbeam of portal frame convenient for fixed plate.

The controller is equipped with display screen and operation panel and data access mouth.Consequently facilitating the planer-type printer Independent use.

The bottom end feet of the pony sill is respectively equipped with traveling wheel, and at least one of which row wheel is equipped with brake assemblies.To Convenient for the movement and carrying of the planer-type printer.

The drawing pen replaces with drill head, and workbench, which is equipped with, engraves orifice plate with what inductive head was aligned.Consequently facilitating model The point of curve graph is by drill head punching, consequently facilitating each curve point is consulted in the superposition of model curve figure.

The printer machine of the utility model is reasonable in design, and production cost is low, is suitable as assessment models verifying The printer of system uses, the superposition metapore point comparison of the drafting demand and multiple curve graphs of particularly suitable larger drawing.

Detailed description of the invention

Fig. 1 is the standard storage and output value graph of relation of the utility model.

Fig. 2 is the flow diagram of the utility model.

Fig. 3 is gantry printer side view partial structure diagram of the utility model.

Fig. 4 is the left view partial structure diagram of Fig. 3.

Figure number and title: 1, planer-type printer, 2, pony sill, 3, controller, 4, portal frame, 5, upper motor, 6, Screw rod, 7, fixed plate, 8, telescope motor, 9, drawing pen, 10, lower motor, 11, row wheel, 12, workbench.

Specific embodiment

Now in conjunction with attached drawing, the utility model structure and use are further described.The implementation steps of the system are as follows:

1, data are extracted: normal data extracts: national standard, professional standard, provincial standard correlated characteristic item are extracted, including Whether title type, publication implementation date, fails, Expiration Date, drafting unit, draftsman's title；Economic data It extracts: extracting total output value (GDP) data that body measures regional economy level respectively by area, industry.

2, data are analyzed: in dual-time sequence data, the economic time series of some non-stationaries are often shown jointly Variation tendency, and itself not necessarily have a direct association between these sequences.At this point, these data are returned, although There is higher R squares, but as a result, without any practical significance.Such case is known as False value or shadowing property, in order to This False value phenomenon is avoided, needs first to do standard storage using the inspection of ADF unit root test method with economical production total value Stationary test.

Stationary test: ADF unit root test (unit root test, which refers to, whether there is unit root in checking sequence, because It is exactly nonstationary time series there are unit root.Unit root just refers to unit root process, it was demonstrated that there are unit root mistakes in sequence Journey can make that there are shadowing properties in regression analysis with regard to unstable.) it is to be completed by three models, first from containing intercept and becoming The model of gesture item starts, then examines the model containing only intercept item, the model for finally the two being examined all to be free of.And think, only When the inspection result of three models cannot all refuse null hypothesis, just think time series be it is non-smoothly, as long as and wherein having one The inspection result of a model has rejected null hypothesis, i.e., it is believed that time series is stable.

The basic ideas of recessive quantity method (Latent variable Approach) are that total factor productivity is considered as one A recessiveness variable is non-observational variable, to be estimated by state-space model (state space model) using maximum likelihood Meter provides total factor productivity estimation.In specific estimation, in order to avoid there is shadowing property, needing to carry out model specification inspection includes Data stationarity is examined and co integration test.There are many method of stationary test and co integration test, common are ADF (the Augmented Dickey-Fuller) unit root test and JJ (Johanson and Juselius) co integration test.Due to producing Out, the trend components of labour and stock of capital data are usually that there is no assist whole relationship, institute between unit root process and three Often to establish regression equation using the first-order difference sequence of output, labour and stock of capital.Using C-D production function, And assume constant returns to scale, then there is following observational equation:

Δ Ln (Yt)=θ Ln (TFPt)+aLn (Kt)+(l-a) Δ Ln (Lt)+ε t

Wherein, Δ Ln (TFPt) is total factor productivity growth rate, it is assumed that it is a recessive variable, and follows single order certainly Returning is AR process, then has following state equation:

Δ Ln (TFPt)=P Δ Ln (TFPt-l)+Vt

Wherein, ρ is autoregressive coefficient, is met | ρ | < 1, and it is white noise.In this way, using state-space model, by very big Possibility predication estimates observational equation and state equation simultaneously, to obtain the estimated value of total factor productivity growth.Recessiveness becomes The great advantage of amount method is, total factor productivity is no longer considered as residual error, but is regarded as an independent state variable, Total factor productivity is separated from residual error in this way, to weed out what some measuring and calculating errors estimated total factor productivity It influences.Meanwhile in specific estimation, data non-stationarity bring shadowing property problem has also been fully considered.

Co integration test: on the basis of the stationary test of two variables is that same order list is whole, it whether there is one between investigation variable A long-run equilibrium and stable relations.Using co integration test, (co integration test, in macroeconometric analysis, Granger is mentioned Association's adjusting method out has become to analyze one of the main tool of quantitative relation between non-stationary economic variable, and by linear Error correction model (ECM) features the Serial regulation mechanism between economic variable, and here it is so-called linear association's adjusting methods.With In the economic analysis of the development of economic theory, especially transaction cost and policy reaction, traditional linear cointegrating analysis is not It is suitable analysis method again, Given this Balk and Fomby proposes so-called threshold value and assists whole (Threshold Cointegration) method, it features the nonlinear adjustment mechanism between economic variable), make to assist whole inspection based on regression parameter It tests.In checkout procedure, all time serieses contain having time (linear) trend term, and all sequences all contain constant term.Assist whole inspection Test result exist association perfect square journey, and at most only one equation, illustrate that time series has passed through co integration test, show variable it Between there is balanced relation steady in a long-term, equation regression residual error is stable.Therefore, on this basis directly to original equation It is returned, regression result at this time is more accurate.

Causality Test: the causality between two variables is embodied by the angle of probability or distribution function.It is examined in stationarity Test on the basis of, with the lagged value that F- statistic carrys out test stone storage whether significantly affect regional GDP ( Under the meaning of statistics, and the lagged value of Y is comprehensively considered.If influence is not significant, claiming standard storage is not area " the Granger reason " of total output value；If influenced significantly, claiming standard storage is that " Granger is former for regional GDP Cause ".Meanwhile for examining regional GDP being standard storage " Granger reason ", examine the lag of regional GDP Whether value influences standard storage (influence of the lag to own for alreading have accounted for standard storage).

Granger Causality Test is primarily used to examine whether endogenous variable can be used as exogenous variable and treat, and is a kind of For the method for the cause and effect between situational variables, for the causality between analysing economic variables.Under time series situation, Causality between two economic variables X, Y is defined as: if under conditions of containing the past information of variable X, Y, to change The prediction effect of amount Y is better than the prediction effect only individually carried out by the past information of Y to Y, i.e. variable X helps to explain and become Measure the variation in future of Y, then it is assumed that the reason of variable X is induced variable Y.

Carry out Causality Test a precondition be that time series must have stationarity, otherwise it is possible that False value problem.Therefore unit should be carried out to the stationarity of each index time series first before carrying out Causality Test Root examines (unit root test).The ADF unit root test for commonly using augmentation respectively to carry out the stationarity of each index series Unit root test.When X time series " due to " result in Y sequence, X sequence causes Y after the sluggishness of a period of time Sequence substantially repeats, then prediction of the X sequence as the following sequence Y.

3, it model foundation: is tested by stationary test, association's warping, Causality Test, it is steady to determine that time series data has Property, there is balanced relations steady in a long-term between variable, and standard storage has an impact to regional GDP variation；And it is returned Return analysis, establishes the current regression model of quantization relationship between variables.Regression analysis uses least square method, for model explanation Convenient, explained variable is the total output value for taking logarithm, and explanatory variable is the standard sum for taking logarithm, establishes linear unitary line Property regression model, i.e. logistic regression models.

Current regression model is on the basis of Ke's cloth-Paul H. Douglas production function, and retention criteria storage is used as from change Amount, using capital, labour, other inputs in science and technology as constant, and introduces value of the Disturbance as random fluctuation；Current mark Function representation form of the quasi- storage to current economic influence model are as follows:

LGDP (t)=a+bLSTD (t)+μ (t)

Wherein, a is the intercept of model, i.e. the fixation value added of total output value；B is the coefficient of model LSTD, i.e. standard is deposited Amount variation economic implication elasticity；U is the Disturbance of model.

Modeling sense: the coefficient of elasticity of the Evaluation Model for Economic Benefits of standard storage is calculated, the economic evaluation in apparition is obtained Model, model coefficient are expressed as explanatory variable to the effect elasticity of explained variable.It is embodied in that b value is bigger, and standard is to warp The influence of Ji is bigger.

4, industry example: if china industry uses above-mentioned analysis method, by the proof analysis to Guangdong Province's china industry, The current standard storage of Guangdong Province's china industry is obtained to the influence model of current economy are as follows:

LCGDP (t)=6.56+0.52LCSTD (t)+μ (t)

Wherein, 6.56 be model values of intercept, i.e. the fixation value added of Guangdong Province's china industry total output value；0.52 is pottery Porcelain industry standard storage changes the economic impact elasticity to its industry.

The model shows that between 2000-2015, the contribution that the development of ceramics standard increases the sector output value is 0.52, i.e., standard storage is every promotes 1%, and the ceramics output value will increase 0.52%.If with Guangdong Province standard storage to provincial GDP Coefficient of elasticity is influenced as measurement standard, and influence elasticity of the ceramics standard number to industry production value is held with the influence elasticity saved It is flat.

Chemical industry equally uses above-mentioned analysis method, by the proof analysis to Guangdong Province's chemical industry, obtains Guangdong The current standard storage of chemical industry is saved to the influence model of current economy are as follows:

LEGDP (t)=5.61+0.56LESTD (t)+μ (t)

Wherein, 5.61 be model values of intercept, i.e. the fixation value added of Guangdong Province's chemical industry total output value；0.56 is change Work industry standard storage changes the economic impact elasticity to its industry.

It shows that between 2000-2015, the development of chemical industry standard is 0.56 to the contribution that the sector output value increases, I.e. standard storage is every promotes 1%, and the chemical industry output value will increase 0.56%.Compared with the influence coefficient 0.52 of ceramics, chemical industry mark Quasi- economic implication is higher than ceramics；Compared with the fixation value added 6.56 of ceramics, the fixation value added of chemical industry is wanted Lower than ceramics, Comprehensive Correlation, it is known that chemical industry is more mature than ceramic industry for the utilization of standard.

5, modelling effect is verified: residual error independence test is that a kind of regression result will appear model testing and pass through but practical pre- The ineffective phenomenon of measured value introduces the independence test of model residual sequence in order to avoid the generation of this phenomenon.White noise It examines using correlation figure and Q statistical magnitude and tests.The inspection is to carry out auto-correlation and partial autocorrelation function to Normal Sequence It calculates, and just each lag rank calculates Q test statistics, the probability (P value) set up is assumed with determination " no this rank auto-correlation "；Formula It is expressed as follows:

Wherein, r_jIt is the j rank auto-correlation coefficient of residual sequence, T is the number of observation, and P is the lag order of setting.

Inspection result is shown into following table:

Inspection obtains white noise sequence, just illustrates that information useful in time series has been extracted and finishes, remaining It is random perturbation entirely, it is unpredictable and use, if residual sequence has passed through white noise verification, termination is modeled, because There is no information that can continue to extract, so that it is reliable for verifying model.

As shown in Figure 1, drawing by abscissa, regional GDP of standard storage is the curve graph of ordinate, pass through by Former data are compared with model prediction data, it is found that the relationship of standard storage and the output value is correlation, the song of model Line has preferably been fitted former data, and the confidence level for also demonstrating model is higher.

Above-mentioned model data belongs to time series data, and the benefit using time series classification data is by being effectively reduced Data dimension, emphasizes shape feature locally or globally, reduces and calculates consumption, and makes insensitive to noise or can be implicit Ground handles noise, to preferably reconstruct former data according to the data after about subtracting.

In conclusion the utility model is that a kind of standard towards enterprise's Industry-oriented implements storage to the shadow of economic development The method of inspection for ringing assessment models and model, establishes the quantitative model and positive method of a kind of standard, performance standardization pair The driving effect that economic development increases.Its innovative point is as follows: 1) establishing a kind of standard and implement influence of the storage to economic development and comment Estimate model；2) method for establishing model and verification method of influence of the standard to economic development are established；3) show that standard imitates economy The coefficient of elasticity b value of beneficial assessment models pointedly analyzes the standard economic implication value of various industries, area.

In addition, as shown in Figure 3, Figure 4, assessment models load is installed on computer, the model of the Drawing of Curve equipment is bent Line chart is charted by planer-type printer 1, and the controller 3 of planer-type printer is connect by data line with computer, controller It is set in pony sill 2, the table top of pony sill is equipped with workbench 12 and portal frame 4, and workbench is equipped with the netted point equidistantly arranged Inductive head, the two sides bottom symmetrical of portal frame are equipped with symmetrically arranged row wheel 11 two-by-two, are respectively equipped with limit between the row wheel of side Column pitch, the workbench limited at spacing are equipped with the limit parallel orbit of protrusion, at least within the row wheel central axis of side Equipped with lower motor 10；Top cross-bar one end of portal frame is equipped with upper motor 5, and the transmission shaft of upper motor passes through on connector crossbeam Screw rod 6 connects, and the both ends of screw rod are respectively equipped with bearing, connect on the inside of screw rod and the fixed plate 7 of crossbeam side, above and below fixed plate The edge of sliding slot and crossbeam upper and lower ends on the inside of both ends fastens, and telescope motor 8, telescope motor are equipped on the outside of the upper end of fixed plate Telescopic shaft connect with drawing pen 9 by connecting plate, the lower end outside of fixed plate is equipped with the upper inductive head being aligned with telescope motor And distance-sensor, lower motor, upper motor, point inductive head, upper inductive head and distance-sensor pass through route and controller respectively Connection.Meanwhile workbench can also be equipped with the above-mentioned portal frame of multiple groups, the lower motors of these portal frames, upper motor, upper inductive head and away from It is connect by route with controller from inductor.It is right two-by-two that the crossbeam of portal frame is equipped with the fixed plate side at fixed plate fastening Claim the idler wheel of setting；Controller is equipped with display screen and operation panel and data access mouth；The bottom end feet of pony sill is set respectively There is traveling wheel, at least one of which row wheel is equipped with brake assemblies.Drawing pen also can be replaced drill head, and workbench is equipped with and a sense That answers head alignment engraves orifice plate, is punched out by hole point of the drill head to curve graph.

Claims (6)

1. a kind of standard is to the Drawing of Curve equipment of economic development impact evaluation model verifying system, the mould of the Drawing of Curve equipment Type curve graph is charted by planer-type printer (1)；It is characterized in that the controller (3) of the planer-type printer (1) passes through Data line is connect with computer, and controller is set in pony sill (2), and the table top of pony sill is equipped with workbench (12) and portal frame (4), workbench is equipped with the netted point inductive head equidistantly arranged, and the two sides bottom symmetrical of portal frame is equipped with symmetrically arranged row two-by-two It takes turns (11), limit spacing is respectively equipped between the row wheel of side, the limit that the workbench at the limit spacing is equipped with protrusion is flat Row track, the row wheel central axis of side is equipped with lower motor (10) at least within；Top cross-bar one end of portal frame is equipped with upper motor (5), the transmission shaft of upper motor is by screw rod (6) connection on connector crossbeam, and the both ends of screw rod are respectively equipped with bearing, screw rod with It being connected on the inside of the fixed plate (7) of crossbeam side, the edge of sliding slot and crossbeam upper and lower ends on the inside of fixed plate upper and lower ends fastens, Telescope motor (8) are equipped on the outside of the upper end of fixed plate, the telescopic shaft of telescope motor is connect by connecting plate with drawing pen (9), Gu The lower end outside of fixed board is equipped with the upper inductive head being aligned with telescope motor and distance-sensor, lower motor, upper motor, point induction Head, upper inductive head and distance-sensor pass through route respectively and connect with controller.

2. standard according to claim 1 verifies the Drawing of Curve equipment of system to economic development impact evaluation model, Be characterized in that the workbench (12) at least provided with a portal frame (4), portal frame be respectively equipped with the upper motor (5), Screw rod (6), fixed plate (7), telescope motor (8), drawing pen (9), lower motor (10), row wheel (11), connecting plate, upper inductive head and Distance-sensor, the row wheel of portal frame are respectively set the limit parallel orbit of workbench, lower motor, upper motor, upper inductive head and Distance-sensor is connect by route with controller.

3. standard according to claim 1 verifies the Drawing of Curve equipment of system to economic development impact evaluation model, It is characterized in that the crossbeam of the portal frame (4) and the fixed plate side at fixed plate (7) fastening are equipped with symmetrically arranged rolling two-by-two Wheel.

4. standard according to claim 1 verifies the Drawing of Curve equipment of system to economic development impact evaluation model, It is characterized in that the controller (3) are equipped with display screen and operation panel and data access mouth.

5. standard according to claim 1 verifies the Drawing of Curve equipment of system to economic development impact evaluation model, It is characterized in that the bottom end feet of the pony sill (2) is respectively equipped with traveling wheel, at least one of which row wheel is equipped with brake assemblies.

6. standard according to claim 1 verifies the Drawing of Curve equipment of system to economic development impact evaluation model, It is characterized in that the drawing pen (9) replaces with drill head, workbench (12), which is equipped with, engraves orifice plate with what inductive head was aligned.