CN104134129A - Contribution rate determining method for power grid enterprise informatization investment - Google Patents

Abstract

The invention discloses a contribution rate determining method for power grid enterprise informatization investment. The method specifically comprises the following steps that firstly, enterprise informatization investment factors are analyzed, secondly, an informatization investment contribution rate model is established based on a C-D production function, thirdly, basic data are collected, and fourthly, an informatization investment contribution rate is calculated. According to the contribution rate determining method, the contribution rate is determined by comprehensively taking the factors in all aspects into consideration, the contribution rate determining method has the advantages of being direct, objective, accurate and the like, the application field is wide, and the method has good market prospects.

Description

The contribution rate of the information-based investment of a kind of power grid enterprises is determined method

Technical field

The present invention relates to a kind of contribution rate computing method, the contribution rate that is specifically related to the information-based investment of a kind of power grid enterprises is determined method.

Background technology

In infotech flourish today, power grid enterprises attach great importance to informatization, have dropped into ample resources and have carried out implementation information project, and wherein the most representative is exactly SG-186 engineering.SG-186 engineering is intended to set up the tight integrated enterprise-level information platform that comprises finance, project, equipment, goods and materials, human resources, planning management business, adapt to eight large service application and effective six information support systems of specification of company management's demand, finally build up digital power grid, informatization enterprise.

Lasting for years of power grid enterprises' informatization including SG-186 engineering, for production, operation, the management of power grid enterprises provide strong backing, has significantly promoted the management level of enterprise, strides forward to intensive, lean, standardized target.But in informatization greatly in enterprise efficiency, the construction period is grown, has high input, is difficult to the problems such as its contribution rate of quantitative test and also inevitably caused people's concern.

In recent years, there are a lot of scholars and mechanism to carry out the research of Informatization on Enterprise's development contribution rate both at home and abroad.Comprise by traditional cost method, law of profits, popularization gradient method the profit of IT application in enterprises is calculated; Propose a kind of method of fused neural network, fuzzy system and intelligent algorithm, assessment education is to economic contribution rate etc.In general, very few to the research of power grid enterprises' development contribution rate about informationization investment at present.

Therefore for the information-based Current Situation of Investment of power grid enterprises, need to set up a kind of contribution rate numerical procedure reliably.

Summary of the invention

Goal of the invention: the object of the invention is to solve the deficiencies in the prior art, provide the contribution rate of the information-based investment of a kind of power grid enterprises to determine method.

Technical scheme: the contribution rate of the information-based investment of a kind of power grid enterprises of the present invention is determined method, specifically comprises the following steps:

(1) analyze IT application in enterprises investment factor;

(2) build information-based investment model of contribution ratio based on C-D production function;

(3) gather basic data;

(4) the information-based investment of measuring and calculating contribution rate.

Further, in described step (1), the factor of the information-based investment of impact comprises two aspects, enforcement factor and operation factor, and enforcement factor comprises: the investment that hardware is built and the investment of software environment; Operation factor comprises: the investment of system operation maintenance and information-based personnel's investment.

Further, in described step (2), the construction method of information-based investment model of contribution ratio is as follows:

First introduce introducing-output function: Y=Af (K, L, X ₁, X ₂..., X _n) (1)

In above-mentioned formula, Y refers to firms output value, and A refers to scientific and technological level, and K refers to capital input amount, and L refers to work input amount, X ₁for hardware investment, X ₂for software investment, X ₃for operation maintenance investment, X ₄for personnel's investment;

, obtain the t derivative of demanding perfection at (1) formula two ends:

$\frac{\mathrm{dY}}{\mathrm{dt}}=\frac{\mathrm{dA}}{\mathrm{dt}}f(K,L,X_1,X_2,...,X_n)+\frac{\∂y}{\∂K}\frac{\mathrm{dK}}{\mathrm{dt}}+\frac{\∂y}{\∂L}\frac{\mathrm{dL}}{\mathrm{dt}}+\underset{j=1}{\overset{n}{\mathrm{\Σ}}}\frac{\∂y}{\∂X_j}\frac{d{X}_j}{\mathrm{dt}}---\left(2\right)$

Equation two ends are same divided by Y, obtain:

$\frac{1}{Y}\frac{\mathrm{dY}}{\mathrm{dt}}=\frac{1}{Y}\frac{\mathrm{dA}}{\mathrm{dt}}f(K,L,X_1,X_2,...,X_n)+\frac{1}{Y}\frac{\∂Y}{\∂K}\frac{\mathrm{dK}}{\mathrm{dt}}+\frac{1}{Y}\frac{\∂Y}{\∂L}\frac{\mathrm{dL}}{\mathrm{dt}}+\frac{1}{Y}\underset{j=1}{\overset{n}{\mathrm{\Σ}}}\frac{\∂Y}{\∂X_j}\frac{d{X}_j}{\mathrm{dt}}---\left(3\right)$

(3) are done and are out of shape, obtain:

$\frac{\frac{\mathrm{dY}}{\mathrm{dt}}}{Y}=\frac{\frac{\mathrm{dA}}{\mathrm{dt}}}{A}+\frac{K}{Y}\frac{\∂Y}{\∂K}\frac{\frac{\mathrm{dK}}{\mathrm{dt}}}{K}+\frac{L}{Y}\frac{\∂Y}{\∂L}\frac{\frac{\mathrm{dL}}{\mathrm{dt}}}{L}+\underset{j=1}{\overset{n}{\mathrm{\Σ}}}\frac{X_j}{Y}\frac{\∂Y}{\∂X_j}\frac{\frac{d{X}_j}{\mathrm{dt}}}{X_j}---\left(4\right)$

(4) are done to equation conversion, set $y=\frac{\frac{\mathrm{dY}}{\mathrm{dt}}}{Y},a=\frac{\frac{\mathrm{dA}}{\mathrm{dt}}}{A},\mathrm{\α}=\frac{K}{Y}\frac{\∂Y}{\∂K},k=\frac{\frac{\mathrm{dK}}{\mathrm{dt}}}{K},\mathrm{\β}=\frac{L}{Y}\frac{\∂Y}{\∂L},$ $l=\frac{\frac{\mathrm{dL}}{\mathrm{dt}}}{L},{\mathrm{\θ}}_j=\frac{X_j}{Y}\frac{\∂Y}{\∂X_j}$ With $x_j=\frac{\frac{d{X}_j}{\mathrm{dt}}}{X_j},$

Input-output function can be write as to C-D production function: $Y=A{K}^{\mathrm{\α}}{L}^{\mathrm{\β}}\underset{j=1}{\overset{n}{\mathrm{\Π}}}{X}_j^{{\mathrm{\θ}}_j}---\left(5\right)$

Formula (4) can be expressed as: $y=a+\mathrm{\αk}+\mathrm{\βl}+\underset{j=1}{\overset{n}{\mathrm{\Σ}}}{\mathrm{\θ}}_j{x}_j---\left(6\right)$

In above-mentioned formula, y represents Growth of Output speed, and a represents scientific and technological level progress speed, and α represents the output elasticity of capital input, and k represents growth of capital speed, and β represents the output elasticity of work input, and l represents work growth rate, θ _jrepresent information-based corresponding output elasticity, the x of dropping into of j item _jrepresent growth rate corresponding to the information-based investment of j item;

Finally obtain information-based investment model of contribution ratio: $C_j=\frac{{\mathrm{\θ}}_j{x}_j}{y}\×100\%---\left(7\right)$

C _jrepresent the contribution rate of the information-based investment of j item to enterprise development.

Further, in described step (3), the data of required collection should comprise the data such as enterprise investment, income and the amount of labour of 6～10 years in the past.

With Matlab, the existing data processing software such as SPSS is determined θ ₁, θ ₂, θ ₃, θ ₄, and then obtain the contribution rate of information-based all kinds of investment to power grid enterprises' development.

Beneficial effect: the present invention can carry out contribution rate measuring and calculating to the investment of four aspects such as hardware, software, operation maintenance, personnel, by the contribution rate of clearly all kinds of investments, the benefit evaluation of aid decision making layer to project investment, and guide the project construction of next stage, for project investment provides decision support, further optimize business administration.The present invention can be applicable to the numerous areas including power grid enterprises, is with a wide range of applications.

Brief description of the drawings

Fig. 1 is schematic flow sheet of the present invention;

Fig. 2 is the interaction mechanism schematic diagram of information-based all kinds of investment factors in the present invention.

Embodiment

Below technical solution of the present invention is elaborated by reference to the accompanying drawings.

As shown in Figure 1, the contribution rate of the information-based investment of a kind of power grid enterprises of the present invention is determined method, specifically comprises the following steps:

(1) analyze IT application in enterprises investment factor;

(2) build information-based investment model of contribution ratio based on C-D production function;

(3) gather basic data;

(4) the information-based investment of measuring and calculating contribution rate.As shown in Figure 2, in step (1), the factor of the information-based investment of impact comprises two aspects, enforcement factor and operation factor,

Enforcement factor comprises: the investment that hardware is built: comprise the construction of machine room, the purchasing and installing of the equipment such as main frame, switch, wireless device, the building of network environment, connection etc.; The investment of software environment: comprise the exploitation of each application software and integrated, the copyright royalty of operating system, popular software, special software, the research of information security issue etc.;

Operation factor comprises: the investment of system operation maintenance: as system amortization charge, overhead cost, maintenance and upgrade cost, and the expense such as data typing, renewal in system use procedure, the expense of utilizing information-based means to pay in routine office work, as communication expense etc.; Information-based personnel's investment; Comprise information education and skills training, the informationization consultant expenses etc. of enterprise staff.

It is complementary that hardware investment, software investment, operation maintenance investment, personnel invest these four aspects.Solid hardware device is the basic guarantee of running software, and electrical network operation system correspondence certain software systems, and the cooperating operation of software systems is the strong embodiment of informatization just.Operation and maintenance can be permanent the normal operation of guarantee software and hardware.Information-based personnel's cultivation is the main line of informatization, is absolutely necessary for personnel's investment.By software, hardware, O&M, personnel's investment energetically, improve all many-sided level of IT applications such as enterprise's production, management, the office efficiency of enterprise greatly, and the lifting of efficiency makes the demand of enterprise to manpower, the requirement reduction to environment.Meanwhile, various informationization investment also can excite Enterprise Efficiency, and this all will improve economic benefit and social benefit indirectly.On the other hand, the lifting of benefit also can bring retroactive effect, and enterprise carries out the informationization investment of a new round in order to obtain larger benefit, and huge social benefit also makes government that the support in policy can be provided.

In above-mentioned steps (2), the construction method of information-based investment model of contribution ratio is as follows:

First introduce introducing-output function: Y=Af (K, L, X ₁, X ₂..., X _n) (1)

In above-mentioned formula, Y refers to firms output value, and A refers to scientific and technological level, and K refers to capital input amount, and L refers to work input amount, X ₁for hardware investment, X ₂for software investment, X ₃for operation maintenance investment, X ₄for personnel's investment;

, obtain the t derivative of demanding perfection at (1) formula two ends:

$\frac{\mathrm{dY}}{\mathrm{dt}}=\frac{\mathrm{dA}}{\mathrm{dt}}f(K,L,X_1,X_2,...,X_n)+\frac{\∂y}{\∂K}\frac{\mathrm{dK}}{\mathrm{dt}}+\frac{\∂y}{\∂L}\frac{\mathrm{dL}}{\mathrm{dt}}+\underset{j=1}{\overset{n}{\mathrm{\Σ}}}\frac{\∂y}{\∂X_j}\frac{d{X}_j}{\mathrm{dt}}---\left(2\right)$

Equation two ends are same divided by Y, obtain:

$\frac{1}{Y}\frac{\mathrm{dY}}{\mathrm{dt}}=\frac{1}{Y}\frac{\mathrm{dA}}{\mathrm{dt}}f(K,L,X_1,X_2,...,X_n)+\frac{1}{Y}\frac{\∂Y}{\∂K}\frac{\mathrm{dK}}{\mathrm{dt}}+\frac{1}{Y}\frac{\∂Y}{\∂L}\frac{\mathrm{dL}}{\mathrm{dt}}+\frac{1}{Y}\underset{j=1}{\overset{n}{\mathrm{\Σ}}}\frac{\∂Y}{\∂X_j}\frac{d{X}_j}{\mathrm{dt}}---\left(3\right)$

(3) are done and are out of shape, obtain:

$\frac{\frac{\mathrm{dY}}{\mathrm{dt}}}{Y}=\frac{\frac{\mathrm{dA}}{\mathrm{dt}}}{A}+\frac{K}{Y}\frac{\∂Y}{\∂K}\frac{\frac{\mathrm{dK}}{\mathrm{dt}}}{K}+\frac{L}{Y}\frac{\∂Y}{\∂L}\frac{\frac{\mathrm{dL}}{\mathrm{dt}}}{L}+\underset{j=1}{\overset{n}{\mathrm{\Σ}}}\frac{X_j}{Y}\frac{\∂Y}{\∂X_j}\frac{\frac{d{X}_j}{\mathrm{dt}}}{X_j}---\left(4\right)$

(4) are done to equation conversion, set $y=\frac{\frac{\mathrm{dY}}{\mathrm{dt}}}{Y},a=\frac{\frac{\mathrm{dA}}{\mathrm{dt}}}{A},\mathrm{\α}=\frac{K}{Y}\frac{\∂Y}{\∂K},k=\frac{\frac{\mathrm{dK}}{\mathrm{dt}}}{K},\mathrm{\β}=\frac{L}{Y}\frac{\∂Y}{\∂L},$ $l=\frac{\frac{\mathrm{dL}}{\mathrm{dt}}}{L},{\mathrm{\θ}}_j=\frac{X_j}{Y}\frac{\∂Y}{\∂X_j}$ With $x_j=\frac{\frac{d{X}_j}{\mathrm{dt}}}{X_j},$

Input-output function can be write as to C-D production function: $Y=A{K}^{\mathrm{\α}}{L}^{\mathrm{\β}}\underset{j=1}{\overset{n}{\mathrm{\Π}}}{X}_j^{{\mathrm{\θ}}_j}---\left(5\right)$

Formula (4) can be expressed as: $y=a+\mathrm{\αk}+\mathrm{\βl}+\underset{j=1}{\overset{n}{\mathrm{\Σ}}}{\mathrm{\θ}}_j{x}_j---\left(6\right)$

In above-mentioned formula, y represents Growth of Output speed, and a represents scientific and technological level progress speed, and α represents the output elasticity of capital input, and k represents growth of capital speed, and β represents the output elasticity of work input, and l represents work growth rate, θ _jrepresent information-based corresponding output elasticity, the x of dropping into of j item _jrepresent growth rate corresponding to the information-based investment of j item;

Finally obtain information-based investment model of contribution ratio: $C_j=\frac{{\mathrm{\θ}}_j{x}_j}{y}\×100\%---\left(7\right)$

C _jrepresent the contribution rate of the information-based investment of j item to enterprise development.

In above-mentioned steps (3), the data of required collection should comprise the data such as enterprise investment, income and the amount of labour of 6～10 years in the past.

With Matlab, the existing data processing software such as SPSS is determined θ ₁, θ ₂, θ ₃, θ ₄, and then obtain the contribution rate of information-based all kinds of investment to power grid enterprises' development.

Embodiment: further illustrate the present invention below by specific embodiment.

(1) analyze IT application in enterprises investment factor;

(2) build information-based investment model of contribution ratio based on C-D production function;

(3) each achievement data of statistics 2005-2013, as shown in table 1 below, and wherein the unit of input, output is ten thousand yuan:

Table 1

Time	Output Y	Capital input K	Work drops into L	Hardware drops into I1	Software drops into I2	O&M drops into I3	Personnel drop into I4
								2005	46087	50300	2303	720	330	120	90
2006	61153	51700	2411	800	360	150	150
								2007	59533	52020	2490	930	400	200	200
2008	94907	52230	2550	1120	620	250	320
								2009	135434	53010	2590	1010	840	400	400
2010	147216	53121	2606	930	930	450	430
								2011	147721	53020	2595	980	900	440	450
2012	119902	53830	2630	910	950	450	450
								2013	127929	54110	2660	940	900	430	460

Utilize the planning of Excel to solve function, adopt least square method to carry out solving of known variables, constraint condition table 2 is set:

Table 2

Attribute	Value
		Method for solving	Develop
Constraint degree of accuracy	0.1
		Convergence	0.001
Mutation rate	0.75

By calculating one group of optimum solution, as table 3:

Table 3

Variable	A	α	β	θ 1	θ 2	θ 3	θ 4
								Value	3.973	0.248	0.400	-0.100	0.341	0.252	0.234

So production function can be written as: $Y=3.973K^{0.248}{L}^{0.400}{X}_1^{-0.100}{X}_2^{0.341}{X}_3^{0.252}{X}_4^{0.234}.$

(4) calculate the contribution rate of information-based miscellaneous investments factor in 2013 by formula (7), as table 4:

Table 4

Can reach a conclusion thus, enterprise should add the input of fatware, operation maintenance, personnel aspect, and will reduce the investment of hardware aspect.

Can find out from this enforcement, can intuitively obtain objectively the contribution rate of this enterprise by definite method provided by the invention, analyze and know next project or the investment decision in next stage for decision maker.

Claims (3)

1. the contribution rate of the information-based investment of power grid enterprises is determined a method, it is characterized in that: specifically comprise the following steps:

(1) analyze IT application in enterprises investment factor;

(2) build information-based investment model of contribution ratio based on C-D production function;

(3) gather basic data;

(4) the information-based investment of measuring and calculating contribution rate.

2. the contribution rate of the information-based investment of power grid enterprises according to claim 1 is determined method, it is characterized in that: in described step (1), the factor of the information-based investment of impact comprises two aspects, enforcement factor and operation factor, enforcement factor comprises: the investment that hardware is built and the investment of software environment; Operation factor comprises: the investment of system operation maintenance and information-based personnel's investment.

3. the contribution rate of the information-based investment of power grid enterprises according to claim 1 is determined method, it is characterized in that: in described step (2), the construction method of information-based investment model of contribution ratio is as follows:

First introduce introducing-output function: Y=Af (K, L, X ₁, X ₂..., X _n) (1)

In above-mentioned formula, Y refers to firms output value, and A refers to scientific and technological level, and K refers to capital input amount, and L refers to work input amount, X ₁for hardware investment, X ₂for software investment, X ₃for operation maintenance investment, X ₄for personnel's investment;

, obtain the t derivative of demanding perfection at (1) formula two ends:

$\frac{\mathrm{dY}}{\mathrm{dt}}=\frac{\mathrm{dA}}{\mathrm{dt}}f(K,L,X_1,X_2,...,X_n)+\frac{\∂y}{\∂K}\frac{\mathrm{dK}}{\mathrm{dt}}+\frac{\∂y}{\∂L}\frac{\mathrm{dL}}{\mathrm{dt}}+\underset{j=1}{\overset{n}{\mathrm{\Σ}}}\frac{\∂y}{\∂X_j}\frac{d{X}_j}{\mathrm{dt}}---\left(2\right)$

Equation two ends are same divided by Y, obtain:

$\frac{1}{Y}\frac{\mathrm{dY}}{\mathrm{dt}}=\frac{1}{Y}\frac{\mathrm{dA}}{\mathrm{dt}}f(K,L,X_1,X_2,...,X_n)+\frac{1}{Y}\frac{\∂Y}{\∂K}\frac{\mathrm{dK}}{\mathrm{dt}}+\frac{1}{Y}\frac{\∂Y}{\∂L}\frac{\mathrm{dL}}{\mathrm{dt}}+\frac{1}{Y}\underset{j=1}{\overset{n}{\mathrm{\Σ}}}\frac{\∂Y}{\∂X_j}\frac{d{X}_j}{\mathrm{dt}}---\left(3\right)$

(3) are done and are out of shape, obtain:

$\frac{\frac{\mathrm{dY}}{\mathrm{dt}}}{Y}=\frac{\frac{\mathrm{dA}}{\mathrm{dt}}}{A}+\frac{K}{Y}\frac{\∂Y}{\∂K}\frac{\frac{\mathrm{dK}}{\mathrm{dt}}}{K}+\frac{L}{Y}\frac{\∂Y}{\∂L}\frac{\frac{\mathrm{dL}}{\mathrm{dt}}}{L}+\underset{j=1}{\overset{n}{\mathrm{\Σ}}}\frac{X_j}{Y}\frac{\∂Y}{\∂X_j}\frac{\frac{d{X}_j}{\mathrm{dt}}}{X_j}---\left(4\right)$

(4) are done to equation conversion, set $y=\frac{\frac{\mathrm{dY}}{\mathrm{dt}}}{Y},a=\frac{\frac{\mathrm{dA}}{\mathrm{dt}}}{A},\mathrm{\α}=\frac{K}{Y}\frac{\∂Y}{\∂K},k=\frac{\frac{\mathrm{dK}}{\mathrm{dt}}}{K},\mathrm{\β}=\frac{L}{Y}\frac{\∂Y}{\∂L},$ $l=\frac{\frac{\mathrm{dL}}{\mathrm{dt}}}{L},{\mathrm{\θ}}_j=\frac{X_j}{Y}\frac{\∂Y}{\∂X_j}$ With $x_j=\frac{\frac{d{X}_j}{\mathrm{dt}}}{X_j},$

Input-output function can be write as to C-D production function: $Y=A{K}^{\mathrm{\α}}{L}^{\mathrm{\β}}\underset{j=1}{\overset{n}{\mathrm{\Π}}}{X}_j^{{\mathrm{\θ}}_j}---\left(5\right)$

Formula (4) can be expressed as: $y=a+\mathrm{\αk}+\mathrm{\βl}+\underset{j=1}{\overset{n}{\mathrm{\Σ}}}{\mathrm{\θ}}_j{x}_j---\left(6\right)$

In above-mentioned formula, y represents Growth of Output speed, and a represents scientific and technological level progress speed, and α represents the output elasticity of capital input, and k represents growth of capital speed, and β represents the output elasticity of work input, and l represents work growth rate, θ _jrepresent information-based corresponding output elasticity, the x of dropping into of j item _jrepresent growth rate corresponding to the information-based investment of j item;

Finally obtain information-based investment model of contribution ratio: $C_j=\frac{{\mathrm{\θ}}_j{x}_j}{y}\×100\%---\left(7\right)$

C _jrepresent the contribution rate of the information-based investment of j item to enterprise development.