SU1251129A1 - Device for statistical simulating of job execution process - Google Patents

Abstract

The invention relates to computing and can be used in assessing the performance of work. The purpose of the invention is to expand the functionality by simulating overhead resources. The device contains random function generators, integrators, AND elements, comparison circuits, key elements, triggers, OR element, subtraction unit, comparison unit, delay element, 2 sludge, (C sd IN9

Description

The invention relates to computing technology and can be used in evaluating the performance of a work resulting from the interaction of the contractor and the resource manager, taking into account the quality of expenditure, supply of resources.

The aim of the invention is to expand the functionality of the device by taking into account the expenditure of the supplied resources inappropriately.

Functional dependences (or their Estimates) are known for the rate of resource inputs, the speed of their development and the rate of waste of resources. Due to the action of random factors, the functions of the velocities are random, in a particular case, they can be piecewise-stepwise.

The work is considered completed efficiently if the specified volume was completed in a directive time and the amount of received resources did not exceed the specified value. In the event that at least one of these requirements is not fulfilled, the work is deemed inefficient. As an estimate of the performance indicator, the number of repeated attempts to perform the work before it is effectively performed serves.

Figure 1 shows a diagram of the proposed device; figure 2 - diagram of the key element.

The device contains the first 1, second 2 and third 3. random function generators, first 4, second 5 and third 6 integrators, first 7 and second 8 elements And, first 9 and second 10 comparison circuits, first 11 and second 12 key elements, first 13. and the second 14 triggers, the OR 15 element, the subtraction unit 16, the comparison block 17, the delay element 18.

The key elements 11 (12) contain an element AND 19, a trigger 20, an element OR 21. The inputs of the element OR 21 for the key element 11 are closure control inputs, and for the key element 12, the inputs of the opening control.

The device works as follows.

The trigger signal is fed to the first input of the element OR 15, from the output of which is fed to the first inputs of the integrators 4-6 and zeroed them, translates the triggers 13 and 14 into one state, turns on the key element 1 and turns off the key element 12, starts the delay element - 1Sh 18 and random function generators -3. The random function generator produces a signal proportional to the speed of resource utilization (labor productivity) x (t). This signal is integrated by the integrator 4, the output of which produces a signal proportional to the magnitude of the work performed, which is fed to the first inputs of the comparison block 17 and the key element 11. The generator 2 random functions generate a signal proportional to

resource delivery rates r (t). This signal goes to the second input of the integrator 5, the output of which forms a signal proportional to the volume of the resources being delivered, which is fed to the first inputs of the I6 subtraction unit and the comparison circuit 9. At its second entrance, Q

a signal r is given, proportional to the allowable amount of resources supplied. At the output of the comparison circuit 9, there is a sieve corresponding to the logical unit, which is fed to the first input of the And 8 element until the signal corresponding to the volume of the delivered resources exceeds the predetermined value of r in advance. The generator 3 of random functions produces a signal proportional to the speed of unproductive

costs delivered by pecypcoB p (t). This signal is integrated by integrator 6, the output of which forms a signal proportional to the amount of unproductive resources

which is fed to the second input of subtraction unit 16. At the output of the subtraction unit 16, a signal is generated that is proportional to the diversity of the delivered and unproductively spent resources r (t) -p (t), i.e. proportional to the amount of resources that can be used to perform the necessary work. This signal is fed to the second input of the comparison block 17 and the input of the key element 12.

The comparison unit operates as follows. If the signal is at its first

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the input is larger than the second, then cHrnatt is formed at its nerve output, and if the signal at its first input is less than the second, or equal to it, then a signal is formed at its

second exit. The signal from the first output of the block, 17 compares the key element 12 and closes the key element II, and the signal from the second output hatches the key element 11 and closes the key element 12. Thus, the first input of the comparison circuit 10 receives a signal proportional to the actual work either from the output of the key element 11, when the productivity of the work performed is less than or equal to the speed of resource supply, or from the output of the key element 12, when the productivity of the work performed is higher than the speed Ack of resources (which corresponds to the case when the supplied resources are immediately used).

The input of the comparison circuit is given a signal x proportional to a given amount of work. When a predetermined amount of work x (t) x is reached, a signal is generated at the output of circuit 10.

corresponding logical

unit that arrives at the second input of the element 8. From the output of the trigger 13, the third input of the element 8 receives a signal corresponding to a logical unit until a delayed signal from the output of the delay element 18 arrives at its input, which specifies the required time allotted for the job. If at the moment of occurrence of the signal at the second input of the And 8 element and all its other inputs there are signals corresponding to logical units, i.e. condition is met

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then, at its output, which is the output of the device5, a signal appears that corresponds to the fact that the specified work was completed during the directive time while satisfying the constraints imposed on the permissible amount of resources supplied. This signal arrives at the input of trigger 14 and brings it to the zero state, blocking the restart of the device,

If the condition is not fulfilled within the directive time, the signal

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the second input of the trigger 14 is not received, the trigger 14 ocraiteTCH is in the unit state and the input of the element 7 from the output of the trigger 14 is given a signal corresponding to the logical one. Since at the time t the signal from the output of the delay element 18 arrives at the first input of the element AND 7, the output of the element H 7 is a signal which is fed to the second input of the element OR 15 and, having passed through it, restarts the device which corresponds to the case of re-working on the condition that it is inefficiently performed. The process of re-performing the work takes place until it is completed with all the requirements.

Thus, the proposed device, as a result of the introduction of a function characterizing overhead costs of delivered resources, allows to take into account real production situations, for example, sending a part of a resource to a consumer of the wrong item or quality, the resource consumption during its delivery to the consumer as the expense of losses, and due to changes in its PROPERTIES, wasting part of the resource for other purposes due to inefficient production technology and low organization of labor.

Claims (1)

Invention Formula A device for statistical modeling of the execution process, comprising the first and second random function generators, the first, second and third integrators, a subtraction unit, a comparison unit, two triggers, two AND elements, an OR element, a delay element, two key elements and two comparison schemes, the first inputs of which are the inputs for setting the initial data of the device, the output More of the comparison unit is connected to the control input of opening the first key element and the input of closing control of the second key element, and output Less than or equal to the comparison unit is connected to the first control input of closing the first key element and the first control input of opening the second key element whose second control input opening and second control input are directly connected to the output of the OR element, the input of the delay element, the start inputs the first and second random function generators, the reset inputs of the first and second integrators and the first inputs of the first M second triggers, the output of the delay element by connected to the second input of the first trigger and the first input of the first element AND, the second input of which is connected to the first output of the second trigger, the output of the first element AND is connected to the first input of the OR element, the second input of which is the device input, the output of the first integrator is connected to the first input of the unit comparison, the output of the second random function generator is connected to the information input of the second integrator, the output of which is connected to the first input of the subtractor, the second input of which is connected to the output of the third integrat pa, the outputs of the first and second comparator circuits and the output of the first flip-flop connected respectively, with the inputs of the second element I, the output of which is the output of the device and connected to the second 5 input of the second trigger, about and. often, in order to expand the functionality by simulating overhead resources, it additionally contains a third random function generator, the start input of which is connected to the output of the AND element and the reset input of the third integrator, whose information input 5 is connected to the output of the third random function generator, the output of the first random function generator is connected to the information input of the first integrator, the output of which is connected to the information input of the first key element, the output of which and the output of the second key element are combined and connected to the second input of the first circuit compare, second 5, the input of the second comparison circuit is connected to the output of the second integrator, and the output of the subtraction unit is connected to the second input of the comparison unit and the information input of the second key element, (rig.g.