CN104346143A - Data conversion method from EBOM (Engineering Bill of Material) to MBOM (Maintenance Bill of Material) - Google Patents

Abstract

The invention relates to a data conversion method from EBOM (Engineering Bill of Material) to MBOM (Maintenance Bill of Material). The data conversion method comprises the following steps of: 1) classifying material parts into inheriting parts, intermediate parts and dummy parts based on basic data of EBOM; 2) traversing nodes of a material part collection by adopting a BOM tree traversal algorithm, if the material parts are intermediate parts, adding combined nodes; if the material parts are the dummy parts, deleting the nodes; if the material parts are inheriting parts, directly inheriting to MBOM; 3) judging whether the traversing process is finished; if not, turning back to step 2) for data conversion of the next node; if so, generating the MBOM. Compared with the prior art, the data conversion method from EBOM to MBOM realizes the conversion process from EBOM to MBOM, realizes the automatic establishment of MBOM, and plays a promotion role for the establishment of the whole intelligent maintenance system. The development efficiency of the whole system is improved, and the production intelligent maintenance operation of enterprises is optimized.

Description

A kind of data transfer device by EBOM to MBOM

Technical field

The present invention relates to a kind of data transfer device, especially relate to a kind of data transfer device by EBOM to MBOM.

Background technology

Current, enterprise faces many-sided managing risk such as Continuous Innovation, global collaboration.Each major company all lays siege to technological innovation and management method is innovated to enhance productivity, to reduce production cost.Wherein particularly outstanding at steel industry, the activity such as the various maintenance for the production of large-scale steel making equipment, maintenance, overhaul (MRO, Maintenance, Repair, Overhaul) consumes material resources, the human resources of a large amount of steel production enterprise.

Present enterprise all applies the equipment maintenance system of a lot of intelligence.Bill of Material (BOM) (Bill of Material, BOM) is the most important basic data in these intelligent maintenance systems, can framework based on it, is got up by the various Data relationships relevant with product.BOM reveals different forms and feature in each phase table of enterprise.In the initial designs planning stage of equipment, be referred to as EBOM (Engineering BOM, engineering BOM), in the plant maintenance stage, be referred to as MBOM (Maintenance BOM, safeguards BOM).Each department due to enterprise needs and the BOM of making is not quite similar, and these BOM never ipsilateral represent the composition form of product and the value of association attributes, finally define information " isolated island ".

There is now a lot of research about BOM a lot, from engineering design BOM to technique BOM, then from technique BOM to the conversion of each view of manufacturing BOM.The research of minority is only had to relate to the dynamic generation of the structure of MBOM view and the MBOM view of transformation, for the concrete maintenance, repair of large complicated equipment, overhaul activity and the research of dynamic construction BOM method is less.

Summary of the invention

Object of the present invention be exactly in order to overcome above-mentioned prior art exist defect and a kind of data transfer device by EBOM to MBOM is provided.

Object of the present invention can be achieved through the following technical solutions:

By a data transfer device of EBOM to MBOM, comprise the following steps:

1) according to the basic data of EBOM, material parts are categorized as and inherit part, middleware and illusory;

2) adopt BOM to set the node of ergodic algorithm to the set of material parts to travel through, if middleware, then increase merge node; If illusory, then deletion of node; If succession part, then directly inherit to MBOM;

3) judge whether that traversal completes, if NO, then return step 2) carry out next node data conversion; If yes, then MBOM is generated.

Described succession part is when generating MBOM by EBOM, and directly from EBOM, succession obtains and do not add the material parts of any structure change; Described middleware for not exist in EBOM, due to the needs of upkeep operation, using material parts as repairing entrusted to other units parts, the material parts generating out in MBOM; Described illusory is the material parts existed in EBOM, and what belong to upkeep operation due to these material parts does not follow the tracks of part, and does not need to exist in MBOM.

It is level search that described BOM sets ergodic algorithm, by needing to search the most last layer of material parts, in layer down search, until find material parts bottom position, finally material parts identical for each layer code name are merged, obtain the material parts needing to search.

Described level search comprises the following steps:

The BOM table that a) will complete relevant search is deposited in queue A;

B) judge that whether queue is empty, sky then terminates, otherwise enters step (c) and perform next step;

C) queue stem element a _idequeue, sends into result set B, calculates and record a _ilayer code and quantity;

D) record a is obtained _icomponent, and after the consumption calculating component and layer code, each component is entered queue;

E) turn step (b) to perform.

Compared with prior art, present invention achieves the process of EBOM to MBOM conversion, the automatic structure of MBOM realizes, and erects a facilitation to whole intelligent maintenance system.Improve the efficiency of whole system exploitation, thus optimize the production of intelligent upkeep operation of enterprise.

Accompanying drawing explanation

Fig. 1 is the view model of EBOM;

Fig. 2 is the view model of MBOM;

Fig. 3 is the process flow diagram of data conversion process of the present invention.

Embodiment

Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.

Embodiment

By a data transfer device of EBOM to MBOM, its idiographic flow comprises the following steps as shown in Figure 3:

Material parts, according to the basic data of BOM, are categorized as and inherit part, middleware and illusory by the first step.

Due to, MBOM is the most important basic data in equipment MRO system, based on framework, the various Data relationships relevant with product get up by it.

When generating BOM, first needing the upkeep operation according to specific product, making giving a definition:

Follow the tracks of part: in product, those are the parts needing emphasis to safeguard, need the whole life cycle of following the tracks of these parts.

Do not follow the tracks of part: parts belong to consumables not tool safeguard or maintenance value, once go wrong, when scrap process.

Committee's outer member: considered by enterprise overall upkeep operation ability, entrusted by the maintenance task of parts thereof other enterprises to carry out keeping in repair to obtain better effect, needs overall to certain parts of product or part as repairing entrusted to other units.

Then, when creating EBOM and MBOM view, need to generate following three kinds of parts according to above-mentioned three kinds of parts.

Inherit part: by EBOM derive generate MBOM time, directly from EBOM inherit obtain and do not add any structure change parts or part be called succession part.

Middleware: do not have in EBOM, and due to the relation of upkeep operation, need using certain parts of product or part overall as repairing entrusted to other units parts, the service parts generating out in MBOM, this from.

Illusory: the concrete parts that exist or part in EBOM, what belong to upkeep operation due to these parts does not follow the tracks of part, and need not occur in MBOM.

EBOM and the MBOM view set up in the present embodiment respectively as depicted in figs. 1 and 2, wherein has illusory and middleware in EBOM, has middleware and inherit part in MBOM.Wherein M is as whole product.Wherein A, B, C, D... are as the subassembly of M below, and the numeral on the right of English alphabet is the quantity of component relative to single father's part (M).Similar, below every layer all relative to sub-parts and the quantity on upper strata.

Second step, adopts BOM to set the node of ergodic algorithm to the material parts set of EBOM and travels through, if middleware, then increase merge node; If illusory, then deletion of node; If succession part, then directly continue

Due in product structure, the form of expression of BOM is tree structure.Structure tree comprises part node, subcomponent nodes and product node.Part node and subcomponent nodes form product node jointly.

First defining EBOM is (A, C, a N) tlv triple.Wherein A is parts a _i(i=1,2 ..., set m); C is parts assembly relation C _ijset, C _ijfor a _iand a _jbetween assembly relation; N is that parts assembling quantity describes n _ijset, n _ij=n (c _ij) represent assembly relation C _ijin father's part have n _ijindividual component is formed.Then defining MBOM is (an A ^m, C ^m, N ^m).

Based on definition above, C _ifor the set of all inheritance means.C _vfor the set of all dummy elements.C _mfor the set of all middlewares.

F ₁inheritance means process function: in product p, if a certain parts a in EBOM _ifor inheritance means, then in MBOM, these parts inherit its assembly relation defined in EBOM completely.Its mathematical description is: $\∀a_i\∈C_l,$ Exist:

$\left\{\begin{array}{c}{a}_i^M=a_i\\ C_{\mathrm{ij}}^M=C_{\mathrm{ij}}\\ q_{\mathrm{ij}}^M=q_{\mathrm{ij}}\end{array}\right.$

In formula, with be respectively part in MBOM with assembly relation and assembling quantity; C _ijand q _ijbe respectively part a in EBOM _iand a _jassembly relation and assembling quantity.

Equally, f can be provided _vdummy elements process function, middleware processes function f _m, can obtain EBOM to the transfer function of MBOM is: MBOM=f _m(f _v(f ₁(EBOM, MBOM))).

In this programme, BOM sets ergodic algorithm and adopts level search, its principle is exactly by needing to search the most last layer of material parts, in layer down search, until find material parts bottom position, finally material parts identical for each layer code name are merged, obtain the material parts needing to search.The flow process of specifically searching of level search is:

The BOM table that a) will complete relevant search is deposited in queue A;

B) judge that whether queue is empty, sky then terminates, otherwise enters step (c) and perform next step;

C) queue stem element a _idequeue, sends into result set B, calculates and record a _ilayer code and quantity;

D) record a is obtained _icomponent, and after the consumption calculating component and layer code, each component is entered queue;

E) turn step (b) to perform.

Shown in Fig. 2, the traversal order of material parts M is M → A, B, C, D, E, F, H → B ₂, B ₃, B ₂, G ₁, G ₂→ b ₁, b ₂.The algorithm of this traversal method is simple, and thinking is clear.

The present invention by said method, achieves the process of EBOM to MBOM conversion, and the automatic structure of MBOM realizes, and erects a facilitation to whole intelligent maintenance system, improves the efficiency of whole system exploitation, thus the production of intelligent upkeep operation of optimization enterprise.

Claims (4)

1. by a data transfer device of EBOM to MBOM, it is characterized in that, comprise the following steps:

1) according to the basic data of EBOM, material parts are categorized as and inherit part, middleware and illusory;

2) adopt BOM to set the node of ergodic algorithm to the set of material parts to travel through, if middleware, then increase merge node; If illusory, then deletion of node; If succession part, then directly inherit to MBOM;

3) judge whether that traversal completes, if NO, then return step 2) carry out next node data conversion; If yes, then MBOM is generated.

2. a kind of data transfer device by EBOM to MBOM according to claim 1, is characterized in that, described succession part is when generating MBOM by EBOM, directly inherits from EBOM and obtains and do not add the material parts of any structure change; Described middleware for not exist in EBOM, due to the needs of upkeep operation, using material parts as repairing entrusted to other units parts, the material parts generating out in MBOM; Described illusory is the material parts existed in EBOM, and what belong to upkeep operation due to these material parts does not follow the tracks of part, and does not need to exist in MBOM.

3. a kind of data transfer device by EBOM to MBOM according to claim 1, it is characterized in that, it is level search that described BOM sets ergodic algorithm, by needing to search the most last layer of material parts, in layer under search, until find material parts bottom position, finally material parts identical for each layer code name are merged, obtain the material parts needing to search.

4. a kind of data transfer device by EBOM to MBOM according to claim 3, it is characterized in that, described level search comprises the following steps:

The BOM table that a) will complete relevant search is deposited in queue A;

B) judge that whether queue is empty, sky then terminates, otherwise enters step (c) and perform next step;

C) queue stem element a _idequeue, sends into result set B, calculates and record a _ilayer code and quantity;

D) record a is obtained _icomponent, and after the consumption calculating component and layer code, each component is entered queue;

E) turn step (b) to perform.