Method of adjusting and tuning topographic precise positioning and navigation system equipment

FIELD: physics.

SUBSTANCE: method involves assembling the article to be tuned, adjustment thereof and using a sample (reference) article. Before tuning and adjustment operations, quality assessment criteria are determined, said criteria being a function of distribution of adjustment errors of the topographic precise positioning and navigation system or distribution of its output parameters based on the set tolerance limit; the tuning and adjustment process is broken down into a series of simple operations with pre-adjustment separate assembly units; adjustment is carried out on installations on measuring devices or by comparing the article to be adjusted with a reference sample (electrical drawing method). The process of adjusting the equipment is broken down into a series of steps, the first step involving shaking the article on a vibration stand in order to remove foreign objects and detect loose joints, the second step involving checking correct assembly based on pre-plotted maps and tables, covering all circuits of the checked device, the third step involving checking operating modes of microcircuits and semiconductor devices, the fourth step involving checking functioning of the device overall and performing adjustment to obtain given characteristics with further control of criteria of the quality of the topographic precise positioning and navigation system executing assigned tasks in conditions comparable with real operating conditions.

EFFECT: high quality of tuning and adjustment operations.

1 dwg

 

The invention relates to defense systems, in particular to methods of holding the adjusting-adjusting operations system equipment topographic location and navigation installed on vehicles complexes arms of various functional purposes.

There is a method of setting safety devices of the crane boom type with the same crane equipment (see patent RU No. 2381173 C1 IPC VS 15/06, 23/88, publ. 10.02.10, bull.№4), adopted for the prototype. The method includes mounting a custom device to equip the crane, the connected load cell and sensor spatial position of the boom system and the regulation of the signals in the channels of the load measurement, departure and/or boom angle of the conditions of the compliance characteristics of the power device specified cargo characteristics of the crane. Before or after installation of the custom device on the new equip the crane or the crane is in operation after its perebazirovka with the removal of these sensors and then installing them when mounting the crane, copied from non-volatile memory exemplary device security, previously configured on the same model crane with the use of bagged cargo preset weight, in the non-volatile memory configurable device information and the height values of the load, departure and/or boom angle at the points of cargo characteristics of the crane with known parameters boom system, and after installation of the custom device to equip the crane and connected to these sensors install the boom with crane in one of the provisions within the operating range of angles of inclination and azimuth, measured parameters of its boom equipment boom position and adjust the signals in the channels of the load measurement, departure and/or boom angle by adding the output signals of the sensors custom device with signals corresponding to the difference between the output signals on the measured flight equip crane and equal to the radius of the reference tap.

The disadvantages of the prototype are:

- high complexity adjustment-adjusting operations;

- the lack of high accuracy characteristics when using the product as directed.

The invention solves the problem of improving the efficiency and quality of the adjusting-adjusting operations system equipment topographic location and navigation.

The technical result obtained by carrying out the invention is to develop ways of adjusting-adjusting operations system equipment topographic location, navigat and, which determines the complex of works on bringing the parameters of the system equipment topographic location and navigation to values that meet the requirements, and allows for the tolerance of variation of parameters, which ensures the effective functioning of the equipment in operation.

This technical result is achieved by the fact that in the proposed method of carrying out the adjusting-tuning operations (RNO) system equipment the topographic location and navigation, including the installation of a custom product, its regulation of the conditions of ensuring compliance with specified characteristics, the use of exemplary samples of products, what's new is that before the RNO for them have defined the criteria for quality assessment, which is the distribution function of the errors of adjustment STN or the distribution of its output parameters with the established field of tolerance, the process RNO equipment STN is divided into a series of simple operations with advanced adjustment of the individual Assembly units, the adjustment is carried out at specialized facilities measurement or comparison of custom products with a reference sample (method electric copy), in addition, the process control apparatus is divided into a number of stages, the first stage product is subjected to vibrations at the vibration is ion stand to remove foreign objects and identify existing loose connections, in the second step validates the installation of pre-made maps and tables covering all circuits checked device, in the third step checks the modes of microcircuits and semiconductor devices, in the fourth stage check the functioning of the device as a whole and are adjustable to achieve a given performance with further quality criteria perform local tasks assignment to conditions comparable to real operating conditions.

The definition for RNO evaluation criteria quality:

to determine the list of required RNO;

to provide further reliable operation of the STN in the conditions of use.

The breakdown process RNO equipment STN on a series of simple operations with advanced adjustment of the individual Assembly units can reduce the volume of work and to equip the adjustment process of special devices.

Application of method of electric copy when conducting RNO allows the use of simpler equipment.

The application of the shaking apparatus STN on the vibration stand allows you to identify at the initial stage of mechanical subtle defects (defective fasteners, soldering, connections, contacts, and so on).

Check for correct mounting according to claim what evritania compiled maps and tables, covering all circuits checked device allows you to:

- to simplify and accelerate the process of the audit;

to eliminate the need of bringing to the test of highly qualified personnel.

The inspection modes of microcircuits and semiconductor devices allows you to:

to evaluate the correctness and quality of electrical work;

- to evaluate the quality of the applied radio electronic elements. The verification of the functioning of the device as a whole and

adjust to obtain the set of features allows you to:

- to provide the final configuration STN before calibration activities;

- to identify subtle defects applied circuit decisions.

Inspection quality criteria perform local tasks assignment to conditions comparable to real operating conditions, allows to conduct a final evaluation of the STN before use as directed

Technical solutions with the features distinguishing the claimed solution to the prototype, is not known and obvious manner from the prior art do not follow. It can be considered that the claimed solution is new and involves an inventive step.

The invention is illustrated in the drawing, which shows a model of the Russian national orchestra.

The way of the adjusting-tuning operations the Nations (RNO) system equipment the topographic location and navigation is as follows.

The adjustment-adjusting operations necessary to resolve the error parts manufacturing and Assembly sites, including predetermined, for example, when inflated tolerances on the individual parameters in order to reduce production costs or inability to implement the required accuracy.

RNO include setting up all the equipment STN in General, the installation of certain modes of blocks and nodes, fit some items, etc. RNO is the number of operations that do not modify the scheme and design of private and only compensating for the inaccuracy of manufacture and Assembly of the equipment of own production and components.

The essence of the RNO is the following. There is a specified function is usually a function of many variables ε=f(x, y, z...). Each of the output parameters of the STN is a function of many variables, ie:

ε1=f(x, y, z...);

ε2=f(x, y, z...);

..............................

εn=f(x, y, z...)

where x, y, z - parameters included in private parts, components, assemblies.

The purpose of the RNO STN is the condition for all parameters

0ii|≤ΔSS,

where ε0i- installed rated output parameter value;

εi- the actual value of the i-th parameter, the resulting adjustment;

ΔSS- the valid value is an error are resulted of the i-th parameter.

Considering that the object adjustment STN in General, it can RNO to imagine how the optimization process, seeking extremum of some General quality function Q product j, defined by either a set of values of variable parameters ρj{ xj, yjzj...}, or a set of individual features quality g. To the totality of g include such indicators as the statistical error of the system, the mean square error in a particular mode, the transition process, etc. IfQ=i=1nqithen private functions are chosen so that they have depended on one or two varying parameters ρj:Q=j=1nq(ρj)extr.

By the form of the function being optimized quality RNO divided into optimizing generalized, private or combined functions. Depending on the method of finding the extremum of the function, quality RNO n is using the principles of search settings analytical settings or combinations thereof.

When the search settings changing variable parameters local custom is the result of the search conditions extremum the function being optimized quality. To do this in private injected test signals.

In analytical (preset) control systems to obtain information about the state of the system used stimuliruuschie signals that mimic real-world signals.

The characteristic quality of the RNO is the distribution function of the errors of adjustment STN or the distribution of its output parameters with the established field of tolerance.

For STN establish some regularities of the formation of the output parameters depending on the characteristics of the applied electric circuits. Only a portion of the distributions of the output parameters is considered normal. The real distribution of output parameters differ from normal due to the skewness and ontroversial. These qualitative characteristics of the distributions of the estimated coefficients of skewness and kurtosis, are used as criteria for the analysis of electrical circuits, STN and perform RNO, with account of the distributions.

In electrical circuits, where RNO are configuration items with smoothly changing parameters (potentiometers, AC the capacitor, the tuning inductance), the distribution function of the output parameters are in good agreement with the normal distribution. The expectation of such distributions in the absence of systematic errors of the instrument close to the nominal value. The variation of output parameters configured STN, characterized by average quadratic deviation, is largely determined by random measurement errors. The values of the coefficients of skewness and kurtosis close to zero.

When RNO electric schemes, the selection of elements that are discrete and smoothly changing parameters, the resulting distribution is characterized by a marked asymmetry and kurtosis. Even more asymmetric and ontroversial can have a distribution of output parameters of the component parts of the STN, which RNO are a selection of elements with discrete parameters.

Interdependent RNO are accomplished by selection of the parameters of two or more elements, one of which is shared among multiple independent electrical circuits. This includes portable scheme of divisors of signals with frequency compensation, various schemes generator of fixed frequency, with the common elements of the oscillating circuits, multirange specifies the time unit. In such schemes the reorganizations is ice or replacement of items reflected on all the parameters STN, depending on these elements. This feature interdependent adjustment operations - one of the reasons for significant deviations of the distributions from the normal. The mathematical expectation of the output parameters may vary significantly from the nominal value.

After defining the criteria for assessing the quality of the process RNO equipment STN is divided into a series of simple operations with advanced adjustment of the individual Assembly units. Adjustment is carried out by specialized units (stands)that are designed for specific parts of the local, by measurement or comparison of custom composite part with a reference sample by the method of electric backup.

Process control equipment STN divided into stages. In the first stage, the product is subjected to vibration for vibrating the stand to remove foreign objects caught in equipment during construction and Assembly works, and identify existing loose connections of parts, mounting parts and electro elements.

In a second step, electrical diagrams and installation drawings, maps and tables covering all circuit check parts and STN in General. In accordance with the prepared maps and tables are checked for proper Assembly.

In the third stage by universal is about electrical equipment are tested modes of microcircuits and semiconductor devices.

In the fourth stage checks the functioning of the STN in General and is RNO to obtain the specified technical characteristics, ensure the implementation of local missions. To do this, gather the Assembly unit STN and auxiliary equipment according to flowchart for the control operation. On Assembly units STN serves voltage from the power supply and check the correct functioning of the parts and STN in General. Next, gather the Assembly unit STN and auxiliary equipment in accordance with the technological scheme for control parameters and conduct RNO.

As the main criteria for assessing the quality of performance of local tasks assignment is the average quadratic error of definition in the Parking lot and in the movement plane rectangular coordinates, define the initial azimuth angle to the longitudinal axis of the vehicle, is installed on STN, definitions in the Parking lot and in the movement angles of roll and pitch. This work was carried out after installation of the STN on the technological means of transport.

Thus, in the present invention the task is solved according to the achievement of the technical result consists in the formation of the way of the adjusting-adjusting operations system equipment topographic location, which is what determines the range of works to upgrade parameters of the system's hardware topographic location and navigation to values, relevant statutory requirements, and allows for the tolerance of variation of parameters, which ensures the effective functioning of the equipment in operation.

The way of the adjusting-adjusting operations system equipment topographic location and navigation, including the installation of a custom product, its regulation of the conditions of ensuring compliance with specified characteristics, the use of exemplary samples of the product, characterized in that before the RNO for them have defined the criteria for quality assessment, which is the distribution function of the errors of adjustment STN or the distribution of its output parameters with the established field of tolerance, the process RNO equipment STN is divided into a series of simple operations with advanced adjustment of the individual Assembly units, the adjustment is carried out on the units for measurement or comparison of custom products with a reference sample (method electric backup)in addition, the process control apparatus is divided into a number of stages, the first stage product is subjected to vibration for vibrating the stand to remove foreign objects and identify existing loose connections, and in the second step validates the installation of pre-made maps and tables covering all the ETUI check device, in the third step checks the modes of microcircuits and semiconductor devices, in the fourth stage check the functioning of the device as a whole and are adjustable to achieve a given performance with further quality criteria perform local tasks assignment to conditions comparable to real operating conditions.



 

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