SU1506458A2 - Device for modeling transport network - Google Patents

Abstract

The invention relates to computing and modeling and can be used to solve a wide range of extreme transportation problems. The purpose of the invention is to expand the functionality of the device by providing the possibility of changing the starting and ending points of the route — in that the device containing model 1 of the transport network branches, indicator 2, current source 3, alternating voltage generator 4, zero authorities 5, encoder 6, block 7 registration, additionally introduced switch 8 and two decoders 9. 2 Il.

Description

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The invention can be used to solve a wide range of extreme transport problems and is an improvement of devices according to the authors. St. No. 566552.

The aim of the invention is to enhance the functionality of the device by making it possible to change the starting and ending points of the route.

Figure 1 shows the functional diagram of the device; figure 2 is a functional diagram of the switch.

The device contains model 1 of the branches of the transport network, indicator 2, current source 3, generator of linearly varying voltage, null organs 5, encoder 6, switch 7 registration unit 8, first 9 and second 9 decoders. Each branch of model 1 consists of successively connected gas discharge devices 10, the quantities of which in the branch correspond to its length. The switch 8 contains the first 11 and second 12 groups of elements And and the group of elements OR 13.

The device works as follows.

The decoders 9 are provided with codes corresponding to the numbers of the vertices of the transport network, which are the source (starting point of correspondence), for example, K - to the decoder 9, and drain (final point), for example, M - to the decoder 9g. At the Km output of the decoder 9 and the Mm output of the decoder 9, there appear single signals, which unlock the Kth and Mth elements AND, respectively, of the first 11 and second 12 groups.

When the source 3 is turned on, the voltage through the open K-th and M-th elements AND and the corresponding elements OR 13 of the switch 8 is applied to the required vertices of model 1 corresponding to the numbers of the initial and final points. At the same time, gas discharge devices 10 highlight the path corresponding to the optimal route of the vehicle between points K and M, and indicator 2 indicates the length of the route.

The voltage along the burning branches monotonously varies from zero to the maximum (which corresponds to the starting and ending points of this route) with a discrete step equal to the combustion voltage of one gas discharge

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the device, and from branch to branch, in increments equal to the voltage drop on the wind leg in general. Consequently, the voltages at the outputs of the corresponding null organs 5 connected to the model points are also not equal and proportional to the distances from the starting point of the route.

When a generator 4 of a linearly varying voltage is turned on, the inputs of the null organs connected to its output are supplied with a voltage increasing linearly in time from a certain initial to maximum value. The initial value of the rising voltage is chosen to be greater than zero, in order to avoid the involuntary actuation of the zero-organs, but less than the magnitude of the voltage drop on one gas discharge device. The final value at the output of generator 4 must be no less than the source voltage 3k

Null organs are triggered alternately in a sequence due to the distance from the starting point of the route. The output signal from each null organ 5 is fed to the encoder 6, where it is converted into the number that encodes the corresponding branch of the transport network.

The registration unit 7 displays the branch numbers sequentially, in accordance with the order of the zero-organs triggering.

Thus, at the upstream of the device, a series of numbers is obtained, representing the codes of the branches belonging to the optimal route on the network, in the sequence of the vehicle moving along the route from the starting point to the end point. Such information is a route map and uniquely indicates the optimal route for the vehicle to travel through the network covered by the model.

Claims (1)

Invention Formula Device for simulating a transport network by aut. St. No. 666552, characterized in that, in order to expand the functionality of the device by providing the possibility of changing the starting and ending points of the route, a switch and first and second decoders are introduced into it, the information inputs of which are the corresponding control inputs of the device, the outputs of the first and second The second decoders are connected respectively with the first and second control inputs of the switch, the first and second information the inputs of which are connected respectively to the first and second terminals of the current source, and the information outputs of the switch are connected to the corresponding nodal points of the network model. Editor V. Petrash Compiled by V. Chernyshev Tehred M. Morgental Proofreader M. Samborska Order 5440/51 Circulation 668 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab., A / 5 Production and publishing plant Patent, Uzhgorod, st. Gagarin, 101 F1 / .2 Subscription