RU2568653C1 - Device for search of clouds and lightning discharges - Google Patents

Abstract

FIELD: radio engineering, communication.

SUBSTANCE: invention uses the amplitude selector, the parallel analyzer of electromagnetic radiation spectra, the spectra quantity determination unit, the decimal to binary converter and the read only memory, also the lightning direction finder output through the amplitude selector is connected to the input of the parallel analyzer of electromagnetic radiation spectra having the group of outputs connected through the spectra quantity determination unit, through the binary to decimal converter from the first group of inputs of the read only memory having the group of outputs connected to the third group of inputs of the secondary processing unit having the second and first groups of inputs and group of outputs respectively connected to the group of radar outputs, the group of outputs of the lightning direction finder and group of the indicator inputs.

EFFECT: increase of range of determination of the lightning discharge.

1 dwg

Description

The invention relates to the field of radio engineering and can be used in navigation and meteorological systems. A device for searching for clouds and lightning discharges is described in the book “Studies of the laws of spatial distribution of lightning discharges in thunderclouds,” by Brjekshiev Surdzhin Lolovich, High Mountain Geophysical Institute, Nalchik, 2002, pp. 3-19. It uses a radar to determine the range and direction to the clouds, including thunderstorms. Also, with the help of a lightning finder, the direction to the lightning discharge, emitting broadband electromagnetic radiation and having sufficient input power, is determined. This radiation is converted into a lightning finder into an electrical signal. The range and direction to the clouds from the radar and the direction to the lightning discharge from the lightning finder can go to the secondary processing unit, where, by identifying the information about the direction to the clouds from the radar with information about the direction to the lightning discharge from the lightning finder, the range information from the radar, representing from the range to lightning discharge, which, together with the direction, is displayed on the indicator.

However, the range for determining lightning discharge is not always sufficient. A device for searching for clouds and lightning discharges, described in the book "Radio-electronic industry", LLC Publishing House "Military Parade", M., 2010, V. Minaev, pp. 71-72, 74. It can consist of the same nodes as the aforementioned analogue. However, the range for determining lightning discharge is also not always sufficient. Using the proposed device increases the range of determination of lightning discharge. This is achieved by introducing an amplitude selector, a parallel analyzer of spectra of electromagnetic radiation, a unit for determining the number of spectra, a decimal code to binary converter and a read-only memory, while the output of a light-direction finder through an amplitude selector is connected to the input of a parallel analyzer of spectra of electromagnetic radiation having a group of outputs connected through a block determining the number of spectra, through a binary to decimal converter, with a group of inputs the memory device having a group of outputs connected to a third group of inputs of the secondary processing unit.

In FIG. 1 and the following notation is used in the text:

1 - lightning finder

2 - amplitude selector

3 - parallel analyzer of spectra of electromagnetic radiation

4 - unit for determining the number of spectra

5 - decimal to binary converter

6 - read-only memory

7 - radar

8 - secondary processing unit

9 - indicator

wherein the output of the lightning finder 1 through an amplitude selector 2 is connected to the input of a parallel analyzer of spectra of electromagnetic radiation 3, having groups of outputs connected through a unit for determining the number of spectra 4, through a binary to decimal 5 converter with a group of inputs of read-only memory 6, having a group of outputs, connected to the third group of inputs of the secondary processing unit 8, having a second and first group of inputs and a group of outputs, respectively connected to the group of outputs of the radar torus 7 with a group of outputs of the lightning finder 1 and a group of inputs of the indicator 9.

The operation of the device is as follows

Radar 7 determines the range and direction to moving clouds, including thunderstorms. Using a lightning finder 1, the direction to the lightning discharge, emitting broadband electromagnetic radiation and having sufficient power, is determined.

An example of a specific design of a lightning direction finder emitting a lightning discharge and a radar is presented in the first analogue mentioned in the book of S. Brzhekshiev. on pages 3, 10, 11. Lightning radiation is converted in lightning finder 1 into electrical signals. The range and direction to the clouds from the radar 7 and the direction to the lightning discharge from the lightning finder go to the secondary processing unit 8, where it is carried out by identifying the information about the direction to the clouds from the radar 7 with information about the direction to the high-current lightning discharge from the lightning finder 1 radar 8, which is also a range to lightning discharge. In addition, the secondary processing unit provides auto tracking of moving clouds and determining their speed of movement. Information on the range and direction is displayed on indicator 9. The increase in the range to lightning discharges and to clouds is carried out thanks to the introduction of additional nodes. In this case, the electric signal from the output of the lightning detector enters the amplitude selector 2, which selects the amplitude characteristic of a signal from a lightning discharge of sufficient power. The signal consists of spectra corresponding to certain frequencies of electromagnetic waves. The higher the frequency, the shorter the propagation range, as noted in the book "Radio Engineering Systems", Yu.M. Kazarinov, 1990, Moscow, Vysshaya Shkola, p. 215. Thus, the propagation range of the maximum frequency of the spectrum has a minimum value.

From the output of the amplitude selector 2, the signal enters a parallel analyzer of spectra of electromagnetic radiation 3, which with a given resolution selects a certain number of filters.

An example of a specific implementation of such an analyzer is presented in the book "Radio Engineering Systems", M., Higher School, Yu.M. Kazarinov, 1990, p. 350, 351.

The code from the output of the parallel analyzer, which characterizes the number of activated filters, enters through the decimal to binary 5 converter to the first group of inputs of read-only memory 6.

In the read-only memory 6, each of the code values from the converter 5 corresponds to a certain range, which is encoded to the second group of inputs of the secondary processing unit 8. Thus, the smaller the number of spectra, the greater the range to the lightning discharge. An example of a specific implementation of the secondary processing unit is presented in the book "Radio Engineering Systems", V.P. Pestryakov and others, 1985, p. 219., as well as in patent No. 2515291 entitled “Device for processing location signals” (authors A. Chasovskaya and others). In this case, the detection range of a lightning discharge can exceed the range of detection by the radar of clouds where this discharge can occur, since in the secondary processing unit auto tracking is performed by inertia based on previously known ranges. Information about the directivity and range to clouds and lightning discharges from the group of inputs of the secondary processing unit 8 is supplied to the group of inputs of the indicator for display. Thus, due to the increase in the range of detection of lightning discharges, the flight and navigation safety of ships is increased, and timely precautionary measures are taken, especially when fixing high-current lightning discharges.

Claims (1)

A device for searching for clouds and lightning discharges, consisting of a lightning finder, a radar, a secondary processing unit, an indicator, where the first and second groups of inputs and a group of outputs of a secondary processing unit are respectively connected to a group of outputs of a lightning finder, to a group of radar outputs and to a group of indicator inputs, characterized in that an amplitude selector, a parallel analyzer of electromagnetic radiation spectra, a unit for determining the number of spectra, a decimal to binary and post converter a storage device, while the output of the lightning finder through an amplitude selector is connected to the input of a parallel electromagnetic radiation spectrum analyzer having a group of outputs connected through a unit for determining the number of spectra through a binary to decimal converter with the first group of inputs of a permanent storage device having a group of outputs connected with a third group of inputs of the secondary processing unit having a second and first group of inputs and a group of outputs, respectively connected with a group of radar outputs, a group of lightning detector outputs and a group of indicator inputs.