RU19590U1 - MOBILE OBJECT DETERMINATION SYSTEM - Google Patents

Abstract

A system for determining the location of a moving object, containing the first transceivers that are one each of the base stations located in the centers of the conditional cells, which are equal regular hexagons, tightly spaced among themselves, tightly covering the served area, with a given on each of these base stations the transmission frequency of this base station, which is one of seven specified different frequencies, the radii of the zones of action of these base stations are set equal to the length of the side of each pr of the hexagon, the second transceivers, placed one at a time on each of the moving objects located within the coverage areas of all base stations, with the transmission frequency and reception frequencies of this second transceiver set on each second transceiver, and the specified transmission frequencies of all second transceivers are equal to each other and are different from any of these seven preset frequencies, each of these base stations also has a reception frequency of this base station that matches the given hour the transmission totality of each second transceiver, characterized in that the system further comprises first transceivers, one each of the base stations additionally located at the vertices of said regular hexagons, with the transmission frequency of this base station being one of these base stations being one of the seven specified frequencies, and the reception frequency of this base station, which coincides with the specified transmission frequency of each second transceiver, these radiuses

Description

MOBILE OBJECT DETERMINATION SYSTEM

The technical solution relates to radio navigation, and in particular to systems for determining the location of moving objects.

Known goniometric-rangefinding radar system (see, for example. Theoretical fundamentals of radar. Edited by VE Dulevich. M .: Soviet radio, 1978, pp. 7-11), containing the first transceiver, which is part of the radar station, a second transceiver located on the target.

This system allows you to accurately measure the coordinates of the targets during the propagation of radio waves in free space. However, when measuring the coordinates of remote targets in the system, it is necessary to use high-power transceivers, which greatly complicates the technical implementation of the system.

A well-known cellular radio communication system (see, for example, Ratshsky MV Fundamentals of cellular communications. Edited by DB Zimin. - M .: Radio and communications, 2000, p.20-68), containing the first transceivers included one each of the base stations located in the centers of the conditional cells, which are equal regular hexagons, tightly spaced among themselves, densely covering the served territory, with the radii of the base station coverage areas equal to the length of the side of each regular hexagon, and with a given on each from base stations the transmission frequency of this base station, which is one of seven specified different frequencies, different from the transmission frequencies of neighboring base stations, the reception frequencies of this

the base station, the second transceivers placed one at a time on each of the moving objects within the coverage areas of all base stations, with predetermined transmission frequencies and reception frequencies of each second transceiver, and the predetermined reception frequencies of the base stations coincide with the predetermined transmission frequencies of each second transceiver, which are different from any of the preset base station transmit frequencies, the preset receive frequencies of every second transceiver are all seven preset hours These are base station transmissions, a switching center, fiber-optic communication lines connecting the switching center to the base stations.

The indicated system allows, with a large number of base stations, to determine with acceptable accuracy the location of mobile objects located within a sufficiently vast served territory. At the same time, relatively low-power first transceivers and second transceivers can be used in the system.

However, for given values of the radii of the coverage areas of base stations and the parameters for placing base stations in the served territory, the distance between any two neighboring base

stations are V3 times larger than the radii of their zones of action. In this regard, the coverage areas of neighboring base stations re-only in the area of their borders, which significantly reduces the accuracy of determining the location of mobile objects located in the central parts of the coverage areas of base stations.

The technical task to be solved is to increase the accuracy of determining the location of moving objects based on the rational placement of base stations in the served territory.

IMG4

The solution of the technical problem in the system for determining the location of a moving object, containing the first transceivers, one each of the base stations located in the centers of conditional 51 cells, which are equal regular hexagons, densely spaced among themselves, densely covering the served territory, with a given on each of these base stations, the transmission frequency of this base station, which is one of seven specified different frequencies, the radii of the coverage of these base stations are set equal the length of the sides of each regular hexagon, second transceivers placed one at a time on each of the moving objects located within the coverage areas of all base stations, with the transmission frequency and reception frequencies of this second transceiver specified on each second transceiver, and the specified transmission frequencies of all second transceivers are equal to each other and are different from any of the seven specified frequencies, the reception frequency of this base station is also set at each of these base stations and, coinciding with the given transmission frequency of each second transceiver, the system additionally contains the first transceivers, one each of the base stations, additionally located in the vertices of the indicated regular hexagons, with the transmission frequency specified on each of these base stations a base station, which is one of these seven preset frequencies, and the reception frequency of this base station, which coincides with a given transmission frequency of every second transceiver ka, the radii of the zones of action of these base stations are set equal to the side length of each regular hexagon, the specified transmission frequency of each base station is different from the specified transmission frequencies of neighboring base stations, given the reception frequencies of every second

the transceiver is five different of the seven specified frequencies, the first transceiver, which is part of each base station, contains the first receiving antenna, six channels for receiving information and service radio signals, each of which contains the first bandpass filter, the first low-noise amplifier, the first amplitude limiter, the first a frequency detector, a first squaring unit, a first integrator, an analog-to-digital converter, a first transceiver also contains one channel for receiving callsigns p an audio signal, which contains a second bandpass filter, an adjustable low-noise amplifier, a second amplitude limiter, a second frequency detector, a second squaring unit, a second integrator, a second analog-to-digital converter, the first transceiver also contains a first controlled oscillator, a first power amplifier, a first transmitting antenna , the first microcontroller, the first indicator, the first reference unit, and the output of the first receiving antenna is connected to the inputs of all first bandpass filters, each of which tuned to a predetermined transmission frequency of one of the corresponding neighboring base stations, in each channel for receiving information and service radio signals, the output of the first bandpass filter is connected to the input of the first low-noise amplifier, the output of which is connected to the input of the first amplitude limiter, the output of which is connected to the input of the first frequency detector, output the first low-noise amplifier is also connected to the input of the first squaring unit, the output of which is connected to the input of the first integrator, the output of which is Inonii with the input of the first analog-to-digital converter, the output of the first receiving antenna also connected to the input of the second bandpass filter tuned to the predetermined transmit frequency of second transceivers, the channel receiving the radio call sign output of the second bandpass filter is connected to

the input of the adjustable low-noise amplifier, the output of which is connected to the input of the second amplitude limiter, the output of which is connected to the input of the second frequency detector, the output of the adjustable low-noise amplifier is also connected to the input of the second squaring unit, the output of which is connected to the input of the second integrator, the output of which is connected to the input second analog-to-digital converter, outputs of all first frequency detectors, outputs of all first analog-to-digital converters, output of the second frequency detector and the output of the second analog-to-digital converter is connected to the corresponding inputs of the first microcontroller, the outputs of which are connected to the control input of the adjustable low-noise amplifier, as well as to the control input of the first controlled generator tuned to a given transmission frequency of this base station, the output of the first controlled generator is connected to the input the first power amplifier, the output of which is connected to the first transmitting antenna, the outputs of the first block are connected to the inputs of the first microcontroller The outputs of the first microcontroller are connected to the inputs of the first indicator, the second transceiver located on each moving object contains a second receiving antenna, five channels for receiving information radio signals, each of which contains a third band-pass filter, a second low-noise amplifier, a third amplitude limiter, and a third frequency detector , the third squaring unit, the third integrator, the third analog-to-digital converter, the second transceiver also contains a second controlled generator, a swarm power amplifier, a second transmitting antenna, a second microcontroller, a second indicator, a second reference unit, the output of the second receiving antenna being connected to the inputs of all third bandpass filters, each of which is tuned to one of

the specified reception frequencies of this second transceiver, in each channel for receiving information radio signals, the output of the third bandpass filter is connected to the input of the second low-noise amplifier, the output of which is connected to the input of the third amplitude limiter, the output of which is connected to the input of the third frequency detector, the output of the second low-noise amplifier is also connected to the input the third block of squaring, the output of which is connected to the input of the third integrator, the output of which is connected to the input of the third analog-digital about the converter, the outputs of all third frequency detectors and the outputs of all third analog-to-digital converters are connected to the corresponding inputs of the second microcontroller, one of the outputs of the second microcontroller is connected to the control input of the second controlled generator tuned to the given transmission frequency of the second transceivers, the other output of the second microcontroller is connected to the control input of the second power amplifier, the output of the second controlled generator is connected to the input of the second power amplifier, to the output of which a second transmitting antenna is connected, the outputs of the second task unit are connected to the inputs of the second microcontroller, the inputs of the second indicator are connected to the outputs of the second microcontroller.

The term “moving object is generally accepted. (See, for example, Solovyov, Yu.A. Satellite navigation systems. - M .: Ekotrendz, 2000, p. 47.) Mobile objects include, for example, various vehicles equipped with radio reception equipment. By the terms “neighboring base station or” a base station that is adjacent to a given base station, we mean base stations located at the closest distance from this base station.

In FIG. Figure 1 shows conditionally base stations located on the served territory and mobile objects located within the served territory, with a conditional image of the coverage areas of the base stations and an indication of the specified operating frequencies of the radio signals emitted from each of these base stations, for the case where the number of base Stations is seventy-two; the number of mobile objects is five.

In FIG. 2 shows a system for determining the location of a moving object for a case in which the number of first transceivers, one each of each base station, is nineteen, and the number of second transceivers placed one on each of the moving objects is three, and the moving objects on FIG. 2 are not shown.

In FIG. 3 shows a first transceiver included in each of the base stations, the base station of FIG. 3 is not shown.

In FIG. 4 shows a second transceiver located on each of the moving objects, the moving object in FIG. 4 is not shown.

In the present description, the following notation is used.

1 „- base station 1 with a unique identification number n, where n l, 2, ..., N are positive integers; 2 „, - moving object

2 with number m, where m is 1,2, ..., M are positive integers; 3 „- zone

3 actions of the base station 1 „; / - operating frequency of the radio signals,

radiated from base station 1, where q l, 2, ..., Q are positive integers; f is the operating frequency of the call signs of the radio signals emitted from

positioned movable object 2. In cases where this does not lead to misinterpretation, the indices in the above notation are omitted.

The essence of the technical solution is as follows.

On the served territory, in the centers and on the vertices of the conditional cells, which are equal regular hexagons, densely covering the served territory, are placed, as shown in FIG. 1, base stations 1 (base stations li - Ii9 and base stations b0 - b3, respectively), the radii of zones 3 of which are set equal to the length of the sides of each regular hexagon, and with a unique identification number specified on each base station 1 (numbers - Ii9 and b0 - b3, respectively).

With this arrangement of base stations 1 on the served territory, no more than six base stations 1 are neighboring in relation to each base station 1.

By zone 3 of action of each base station 1 we mean equal to each other zone 3 of action when radiating radio signals from this base station 1 and zone 3 of action when receiving radio signals of this base station 1.

In this case, by zone 3 of action when radiating radio signals from each base station 1 we mean a part of the territory within which, with undirected radiation from this base station 1, radio power signals from the operating frequency / power of these

radio signals during their non-directional reception at other base stations 1 and at moving objects 2, not less than a certain threshold value - a prmin characterizing the sensitivity of the reception channels

of radio signals at base stations 1 and at mobile objects 2. Under zone 3, when receiving radio signals at each base station 1, we mean a part of the territory within which, with undirected radiation from other base stations 1 of radio signals of the same power at the same operating frequency / as well as with undirected

power P, zd at the operating frequency / „the power of these radio signals during non-directional reception at this base station 1, is not less than the same

values / min.In this regard, assuming that the propagation of radio waves occurs in free space, and the served area is a plane, zone 3 of action of each base station 1 with undirected radiation from base stations 1 and from a positioned moving object 2 and at the non-directional reception of radio signals at base stations 1 and at moving objects 2 is a circle centered at the location of this base station 1 and the radius determined by the formula (see, for example. Iolocation. Edited by V.E. Dulevich. - M.: Soviet Radio, 1978, p.402)

D) out C Pn.mji / IN

K-,)

4, V av.min V av.min

where c is the speed of light in vacuum.

By the radius of the zone 3 of the action of each base station 1 we understand the radius of the specified circle.

When placing base stations 1 in the centers and at the tops of conditional cells, which are equal regular hexagons that densely cover the served territory, with radii of zones 3 of action of base stations 1 equal to the length of the side of each regular hexagon, the border of zone 3 of action of each base station 1 passes through points of placement of neighboring base stations 1. In Fig. 1, the boundaries of the zones 3 of action of base stations 1 are shown arbitrarily by circles.

In the present description, by the term "signal power, we mean the average power P of the signal s (t}, determined in the time interval

t t tf, no formula (see, for example, A.M. Trachtman. Introduction to

generalized spectral theory of signals. - M .: Soviet Radio, 1972, p.14)

P (t} dt. (2)

 "F.,

In the system, when radiation from base stations 1, information and service radio signals are used. If in the present description the type of radio signals emitted from base stations 1 is not specified, then they can be both information and service radio signals.

Set seven different operating frequencies (Q l} radio signals,

emitted from all base stations 1. Of the seven predetermined operating frequencies at each base station 1 is set, as shown in FIG. 1, one operating frequency of the radio signals emitted from this base station 1, different from the specified operating frequencies of the radio signals emitted from the neighboring base stations 1. Thus, at base stations 1 that are not adjacent, the repeating operating frequencies of the radio signals emitted from these base stations 1.

By the term "operating frequency" we mean the value of the frequency of the carrier wave, the central or some other characteristic value of the frequency of the frequency band of radio signals. Moreover, the frequency bands of the radio signals corresponding to different operating frequencies are non-overlapping.

From a positioned movable object 2, which is one of the movable objects 2 located within the service area, the call signs of the radio signals are emitted at a given operating frequency. These callsigns are received at the base stations 1, in the zones 3 of which the positioned movable object 2 is located.

From these base stations 1, information signals containing the identification numbers of base stations 1 are transmitted to mobile objects 2 within the service area, and the positioned movable object 2 is located in the action zones 3. In this case, information signals corresponding to information transmitted to mobile objects 2, located within the serviced territory, are the corresponding information radio signals.

The transmission of information radio signals from base stations 1, in the zones 3 of which the positioned movable object 2 is located, to mobile objects 2 located within the boundaries of the served territory, is as follows. First, one of these base stations 1 carries out the emission of information radio signals at a given operating frequency. Pa all base stations 1, which are adjacent to the specified base station 1, receive information signals emitted from the last base station 1 and their radiation at the corresponding given operating frequencies. Then, at all other base stations 1, which are adjacent to the indicated base stations 1, receive information radio signals emitted from the indicated base stations 1 and their radiation at the corresponding given operating frequencies. Then, in the same way, sequentially, in all directions from the indicated base station 1, in the zone of action 3 of which there is a positioned movable object 2, to the borders of the served territory at all other subsequent base stations 1, which are adjacent to the previous base stations 1, they receive radiated from previous base stations 1 information radio signals and their radiation at the corresponding given operating frequencies. Then os)

(U. | /

likewise, in turn, the transmission of information radio signals from all other base stations 1, in the zones 3 of which the positioned movable object 2 is located, to mobile objects 2 located within the boundaries of the served territory.

To ensure the transmission of informational radio signals from each of the base stations 1, in the zones 3 of which the positioned movable object 2 is located, to mobile objects 2 located within the service area, and, therefore, to all other base stations 1, without “looping from seven preset operating frequencies at each base station 1 set the operating frequencies of the information radio signals received at this base station

1, in which from this base station 1 carry out the emission of information radio signals at a given operating frequency. At the same time, at each base station 1, the indicated operating frequencies are set for any other base station 1, in the action zone 3 of which a positioned movable object 2 can be located, depending on the relative position of these base stations 1 and the values of the specified operating frequencies of the information radio signals emitted from the base stations 1 being adjacent to the first base station 1.

Then, in a similar manner, the informational radio signals are transmitted alternately from all other base stations 1, in the action zones 3 of which there is a positioned movable object

2, to movable objects 2, located within the boundaries of the served territory.

With the indicated placement parameters on the served territory of base stations 1 with specified radiuses of action zones 3, at least three zones 3 of action of neighboring base stations 1 overlap at each point of the served territory since radiation

12 / U V / I /

information radio signals from neighboring base stations 1 are carried out at different operating frequencies, information radio signals of at least three different predetermined operating frequencies are received at each receiving point. Therefore, to ensure guaranteed reception of informational radio signals on moving objects 2 when moving within the service area, it is sufficient to receive informational radio signals on each moving object 2 at only five different out of seven specified operating frequencies.

On mobile objects 2, information radio signals received from the base stations 1 are received, in the zones 3 of which these mobile objects 2 are located. In this case, the reception of information radio signals on mobile objects 2 is carried out at the given operating frequencies, which are each mobile object 2 five different of the seven preset operating frequencies.

Pa of each of the base stations 1 and on mobile objects 2 within the boundaries of the served territory additionally specify the coordinates (.x,; /) of the location of all base stations 1, as well as the corresponding identification numbers n and the radii R of the zones 3 of the action of all base stations 1. For this, a rectilinear coordinate system on the plane associated with any point of the served territory can be used.

The positioning of the positioned movable object 2 is carried out on the movable objects 2 located within the service area, and at the base stations 1 by the identification numbers of the base stations 1, in the action zones 3 of which the positioned movable object 2 is located, as well as according to additionally specified placement coordinates and radii zones 3 of the action of these base stations 1.

Assuming the assumption that the action zones 3 of each base station 1 are a circle of radius R, coordinates (x, y}

positioned movable object 2 is determined from the solution of the system of inequalities

x-xJ + (y-y, {.-.

(x-xJ + (

(.-. J (where (x „,, (x„, y „), ..., (x„, y „..., (x„, are the coordinates of the base stations 1 with identification numbers n, n , ..., n, .., ... n, in

action zones 3 of which a positioned movable object 2 is located, where K is the number of these base stations 1; moreover, k, K are positive integers, n l, 2, ..., N, n l, 2, ..., N, n, 2, ..., N.,

n l, 2, ..., N.

The solution to system (3) is the set of coordinate values (x, y}

points forming the area of the served territory limited by fragments of the boundaries of overlapping action zones 3 of the neighboring base stations 1, in which the positioned moving object 2 is located. For the given radii of zones 3 of the action of base stations 1 and the placement parameters of base stations 1 in the served territory, the area of the region defined by the formula (3), not more than one sixth of the area of the zone 3 of action of each base station 1, which significantly increases, compared with the prototype, the accuracy of determining the position Rui movable objects 2 located in the central zone of ASTK 3 of the base station 1.

14

To ensure the operability of the system, the placement of base stations 1 near the boundaries of the served territory must be carried out so that at each point of the served territory there is an overlap of at least three zones 3 of the activity of neighboring base stations 1. Thus, for example, the border of the served territory shown in FIG. 1, may be a closed polygonal line passing through all the extreme base stations 1 (base stations L0, 124, L2, L2, 122,

Bb, b0, 1z5, 140, 146, 152, b, 1b2, 1b6, b0, b3, 1b9, 172, 1b8, b1b7, 1b3, bs, b3, uv, 141, 1zb, 1z1, b, 12z) determining the location of the moving object 2 in the conditions of propagation of radio waves in free space to provide a specified value of the radius R of the zone 3 of action of each base station 1 with known values of the operating frequency / „and the power P of the call signs of the radio signals emitted from the positioned moving object 2 is necessary in accordance with the formula ( 1) provide the required sensitivity value of the channel for receiving callsign radio signals If the propagation conditions of radio waves are affected,

arising, for example, when the base stations 1 are shaded and the radio waves in the atmosphere are attenuated, the radii of the zones of action 3 of the base stations 1 decrease, which leads to a decrease in the accuracy of determining the position of positioned moving objects 2 located in the central parts of the zones of action 3 of the base stations 1. Therefore To ensure the required accuracy of determining the location of the moving object 2 at each base station 1, it is necessary to adjust the frequency of the reception channel of the callsign radio signals.

Pa each base station 1 measure the power of information radio signals received from neighboring base stations 1. Then, from each base station 1 carry out radiation

service radio signals containing information about the power of information radio signals emitted from this base station 1. At each of these neighboring base stations 1, a set of said radio signals is carried out and the ratios of the measured power values of information radio signals received at this base station 1 are related to the corresponding power values of information radio signals emitted from base stations 1, which are adjacent in relation to the specified neighboring base station 1. For each of the indicated neighboring base stations 1 according to the creeping ratios of the power values, the sensitivity of the reception channel of the callsign radio signals emitted from the positioned movable object 2 is adjusted.

.Adjusting the sensitivity of the channel for receiving callsign radio signals at each of these neighboring base stations 1 is carried out, for example, according to the obtained arithmetic mean value of the measured ratios of power values using

formulas

pr.minp.izl

where P „zl is the power of the call signs of the radio signals emitted from the positioned moving object 2; measured on

the specified neighboring base station 1 value of the power of the information radio signals of the working frequency /, taken with

one of the base stations 1, which are adjacent in relation to the specified neighboring base station 1; power

operating frequency information radio signals / emitted from

d pr. ism .x

Rv;

V)

the sensitivity of the reception channel of the callsign radio signals, which is set at the base station 1 in the process of adjustment according to the measurement results.

Formula (4) shows that at each base station 1 in the process of adjusting the sensitivity of the reception channel of the callsign radio signals at a constant power P „, s, the emitted 5D1 callsigns of radio signals

it is necessary to set the sensitivity value at which

the radius of the zone 3 of the action of this base station 1 when receiving callsigns of radio signals reaches the desired value.

The positioning system of the movable object 2 is shown in FIG. 2. The system contains the first transceivers 4, one each of which is included in each of the base stations 1, and the second transceivers 5, placed one at a time on each of the movable objects 2 within the service area. In FIG. 2, an example is shown of a system containing nineteen first transceivers 4 and three second transceivers 5. In this case, a description of the system and operation of this system is given for an arbitrary number of first transceivers 4, one each of base stations 1, and second transceivers 5, placed one on each of the movable objects 2 within the boundaries of the served territory.

Base stations 1 are located in the centers and at the vertices of the conditional cells, which are equal regular hexagons, densely spaced among themselves, densely covering the served territory. The radius of the zone 3 of action of each base station 1 is set equal to the length of the side of each regular hexagon. At each point of the served territory, at least three zones 3 of action of neighboring base stations 1 overlap.

Mf (

17

The transmission frequency of base station 1 is the corresponding operating frequency of the radio signals emitted from this base station 1. The transmission frequency of the second transceiver 5 is the corresponding operating frequency of the callsign radio signals emitted from the positioned moving object 2. The reception frequency of the second transceiver 5 is the corresponding operating frequency of the information radio signals received at the corresponding moving object 2. The receiving frequency of the base station 1 is the corresponding operating frequency according to call signals emitted from a positioned moving object 2.

The terms “transmission frequency and” reception frequency of a device are generally accepted. (See, for example, Gromakov Yu.A. Standards and systems for mobile radio communications. - M.: Eco-Trends, 2000, p.22.)

Of the seven set different operating frequencies at each base station 1, the transmission frequency of this base station 1 is set, which is different from the set transmission frequencies of neighboring base stations 1. Of the seven specified working frequencies on each moving object 2, one transmission frequency and five different reception frequencies of the second a transceiver 5 located on this moving object 2. Moreover, the predetermined transmission frequencies of all the second transceivers 5 are equal to each other and are different from any of the seven specified operating frequencies. At each base station 1, a reception frequency of this base station 1 is also set, which coincides with a predetermined transmission frequency of each second transceiver 5.

All elements and blocks that make up the system are known and described in the literature.

A first transceiver 4 located at each base station 1 shown in FIG. 3 comprises a first receiving antenna

6, six channels for receiving information and service radio signals, each of which contains a first bandpass filter 7, a first low-noise amplifier 8, a first amplitude limiter 9, a first frequency detector 10, a first squaring unit 11, a first integrator 12, an analog-to-digital converter ( ADC) 13. The first transceiver 4 also contains one channel for receiving callsign radio signals, which contains a second band-pass filter 14, low-noise adjustable; amplifier 15, second amplitude limiter 16, second frequency detector 17, the second squaring unit 18, the second integrator 19, the second ADC 20. The first transceiver 4 also includes a first controllable generator 21, a first power amplifier 22, a first transmitting antenna 23, a first microcontroller 24, a first indicator 25, a first reference unit 26.

The output of the first receiving antenna 6, designed for non-directional reception of information and service radio signals emitted from neighboring base stations 1, and call signs of radio signals emitted from a positioned moving object 2, is connected to the inputs of all first bandpass filters 7. Information and service radio signals are high-frequency frequency-modulated electromagnetic oscillations of the corresponding identical operating frequencies. In this regard, at equal speeds of information transmission, the values of the bandwidth of information and service radio signals can be considered equal. The first band-pass filters 7 are used to select radio signals in frequency. Moreover, each of them is tuned to a predetermined transmission frequency of one of the corresponding neighboring base stations 1. The bandwidth of each first band-pass filter 7 is not less than the bandwidth of the radio signals of the corresponding operating frequency. In each channel for receiving information and service radio signals

19 / N The OUTPUT of the first band-pass filter 7 is connected to the input of the first low-noise amplifier 8, designed to amplify the received radio signals. The output of the first low-noise amplifier 8 is adjusted to the input of the first amplitude limiter 9, which serves to eliminate spurious amplitude modulation of signals arising from the propagation of radio waves. The output of the first amplitude limiter 9 is connected to the input of the first frequency detector 10, intended for the frequency detection of received information and service radio signals. The output of the first low-noise amplifier 8 is also connected to the input of the first squaring block 11, the output of which is connected to the input of the first integrator 12. The first squaring block 11 and the first integrator 12 are connected in series to generate signals proportional to the power of the received radio signals. The output of the first integrator 12 is connected to the input of the first ADC 13. The output of the first receiving antenna 6 is also connected to the input of the second band-pass filter 14, tuned to a given transmission frequency of the second transceivers 5. The passband of the first band-pass filters 7 and the second band-pass filter 14 are not overlapping. The bandwidth of the second band-pass filter 14 is not less than the bandwidth of the callsign radio signals. Radio callsigns are high-frequency frequency-controlled electromagnetic oscillations of a given operating frequency. In the channel for receiving callsign radio signals, the output of the second band-pass filter 14 is connected to the input of an adjustable low-noise amplifier 15, designed to amplify the received callsign radio signals. The output of the adjustable low-noise amplifier 15 is connected to the input of the second amplitude limiter 16, designed to eliminate spurious amplitude modulation.

signals arising from the propagation of radio waves. The output of the second amplitude limiter 16 is connected to the input of the second frequency detector 17, which serves to frequency detect the received callsigns of the radio signals. The output of the adjustable low-noise amplifier 15 is also connected to the input of the second squaring unit 18, the output of which is connected to the input of the second integrator 19. The second squaring unit 18 and the second integrator 19 connected in series are used to generate signals proportional to the power of the received radio signals. The output of the second integrator 19 is connected to the input of the second ADC 20. The outputs of all the first frequency detectors 10, the outputs of all the first ADCs 13, the output of the second frequency detector 17 and the output of the second ADC 20 are connected to the corresponding inputs of the first microcontroller 24. The first microcontroller 24 is designed to process the received radio signals , the formation of binary sequences of pulses corresponding to the identification numbers of base stations 1, in the zones 3 of which there is a positioned movable object 2, to determine the places the position of the positioned movable object 2, for generating modulating binary sequences of pulses corresponding to overhead information transmitted to neighboring base stations 1, as well as for adjusting the gain of the adjustable low-noise amplifier 15. The outputs of the first microcontroller 24 are connected to the control input of the adjustable low-noise amplifier 15, and to the control input of the first controlled generator 21, tuned to a given transmission frequency of this base station 1. The first control The oscillator 21 is used to generate high-frequency manipulated signals,

the controlled generator 21 is connected to the input of the first power amplifier 22, the output of which is connected to the first transmitting antenna 23, designed for non-directional radiation into the space of information and service radio signals. The outputs of the first task unit 26 are connected to the inputs of the first microcontroller 24, which is used to set at each base station 1 the coordinates of the location of all base stations 1, the corresponding identification numbers and radiuses of the 3 zones of action of all base stations 1, and to set at each base station 1 for any other base stations 1, in the zones of action 3 of which there can be a positionable movable object 2, the values of the operating frequencies of the information radio signals received at this base station 1, at which this base station 1 carry out the emission of information radio signals at a given operating frequency. The outputs of the first microcontroller 24 are connected to the inputs of the first indicator 25, which serves to display information about the location of the positioned movable object 2 on the served territory.

All base stations 1 contain the same type of first transceivers 4, differing only in frequency values, which are tuned to the first band-pass filters 7 and the first controlled oscillators 21.

A second transceiver 5 located on each movable object 2 shown in FIG. 4, contains a second receiving antenna 27, five channels for receiving informational radio signals, each of which contains a third band-pass filter 28, a second low-noise amplifier 29, a third amplitude limiter 30, a third frequency detector 31, a third squaring unit 32, a third integrator 33, and a third ADC 34. The second transceiver 5 also contains a second controllable generator 35, a second power amplifier 36, and a second

22

a transmitting antenna 37, a second microcontroller 38, a second indicator 39, a second job unit 40.

The output of the second receiving antenna 27, designed for non-directional reception of information radio signals emitted from base stations 1, is connected to the inputs of all third bandpass filters 28, which serve to select information radio signals in frequency. Each of them is tuned, respectively, to one of the given reception frequencies of this second transceiver 5. The bandwidth of each third bandpass filter 28 is no less than the bandwidth of the information radio signals of the corresponding operating frequency. The passbands of the third bandpass filters 28 are non-overlapping. In each channel for receiving informational radio signals, the output of the third band-pass filter 28 is connected to the input of the second low-noise amplifier 29, intended to amplify the received informational radio signals. The output of the second low-noise amplifier 29 is connected to the input of the third amplitude limiter 30, which serves to eliminate spurious amplitude modulation of signals arising from the propagation of radio waves. The output of the third amplitude limiter 30 is connected to the input of the third frequency detector 31, intended for the implementation of frequency detection

informational radio signals. The output of the second low-noise amplifier 29 is also connected to the input of the third squaring unit 32, the output of which is connected to the input of the third integrator 33. The third squaring unit 32 and the third integrator 33 are connected in series to generate signals proportional to the power of the received radio signals. The output of the third integrator 33 is connected to the input of the third ADC 34. The outputs of all third frequency detectors 31 and the outputs of all third ADC 34

connected to the corresponding inputs of the second microcontroller 38. One of the outputs of the second microcontroller 38 is connected to the control input of the second controlled generator 35, tuned to a given transmission frequency of the second transceivers 5, the other output of the second microcontroller 38 is connected to the control input of the second power amplifier 36. The output of the second controlled generator 35 is connected to the input of the second power amplifier 36, which serves to amplify the power signals. A second transmitting antenna 37 is connected to the output of the second power amplifier 36, intended for non-directional radiation into the space of the call signs of the radio signals. The second microcontroller 38 is designed to generate binary sequences of pulses corresponding to the operating frequency codes of the emitted radio information signals, to determine the location of the positioned movable object 2 and to display this information on the second indicator 39, the inputs of which are connected to the outputs of the second microcontroller 38. The inputs of the second microcontroller 38 are connected the outputs of the second task unit 40, which serves to set on each moving object 2 coordinates of the placement of all base stations th 1, the corresponding set of identification numbers and areas of radii 3 actions of all the base stations 1.

The term “controlled generator is generally accepted. (See, for example. Theoretical Foundations of Radar. Edited by V.E. Dulevich. M: Soviet Radio, 1978, p. 358). The frequency of oscillations generated by the controlled generator is determined by the voltage acting on its control input. In this case, the controlled generator is a voltage-driven generator. Voltage controlled oscillators are known and described in the literature devices. (See, for example, Horowitz P., Hill. W. Art

DO / Y ()

24

circuitry. In 3 volumes: T.I. Per. from English - 4th ed. reslave. and add. M .: Mir, 1993, p. 308.) By the tuning frequency of the controlled generator we mean the center frequency of the operating range of the controlled generator corresponding to the working range of the charging voltages.

As the first amplitude limiters 9, the second amplitude limiters 16 and the third amplitude limiters 30, for example, nonlinear resonant amplifiers tuned to the corresponding operating frequencies can be used. (See, for example, IS Gonorovsky. Radio engineering circuits and signals. - M.: Radio and communications, 1986, p. 235.)

Pa all the moving objects 2 are placed the same second transceivers 5, and the operating frequencies, which are tuned to the third band-pass filters 28, can coincide on different moving objects 2.

At base stations 1 and at moving objects 2, respectively, such values of the amplification factors of the first low-noise amplifiers 8, adjustable low-noise amplifiers 15 are set (the values of the gain of adjustable low-noise amplifiers 15 are set initially and during the operation of the system can be changed) and second low-noise amplifiers 29, with which the sensitivity of the reception channels of information and service radio signals at base stations 1 and on mobile objects 2, as well as the sensitivity of the reception channels of call signs p diosignalov at the base stations 1 is prmin- at the base station 1 (depending on

preset values of operating frequencies / radio signals from these

base stations 1) and on a positioned moving object 2 (depending on the set value of the operating frequency / "call signs of radio signals emitted from a positioned moving object 2)

.

25

respectively, such values of amplification factors but power of nerve power amplifiers 22 and second power amplifiers 36 are set, for which respectively the values of the power of the emitted information and service radio signals are equal to

the power of the radiated callsigns of the radio signal is equal to. Moreover, the values and values of / „zl and other minutes are selected based on the set value of the radius of the zone 3 of action of each base station 1, which is equal to the length of the side of each of the indicated hexagons.

Information, service and nosy radio signals are narrow-band; the propagation time of radio signals from each base station 1 to neighboring base stations 1 and the time interval for measuring the power of the received radio signals are negligible compared to the duration of any of the pulses of modulating binary pulse sequences corresponding to the transmitted information; the propagation time of signals in the transceiver paths of base stations 1 and mobile objects 2 is negligible.

Accepted assumptions correspond, for example, to the following system parameters. The radius of zone 3 of action of each base station 1 is 500 m; the working frequencies of the radio signals emitted from all base stations 1 are respectively 11, 12, 13, 14, 15, 16 and 17 MHz; the working frequency of the call signs of the radio signals emitted from the positioned movable object 2 is 10 MHz; the duration of any of the pulses of modulating binary sequences of pulses corresponding to the transmitted information is not less than 10 ms, the time interval of a single measurement of the power of the received radio signals is not more than 0.1 ms.

(l l; y l v p 7

M./P)

27 At each base station 1, the identification number of this base station 1, as well as the coordinates of the placement of all base stations 1 and the corresponding identification numbers and radiuses of the 3 action zones of all base stations 1, are entered into the first job block 26. At each base station 1, in the first task unit 26 is also introduced for any other base stations 1, in the action zones 3 of which a positioned movable object 2 can be located, the operating frequencies of the information radio signals received at this base station 1, at which s from this base station 1 carry out the emission of information radio signals at a given operating frequency. At each movable object 2 located within the service area, the coordinates of all base stations 1 are entered in the second task block 40, as well as the corresponding identification numbers and radii of the action zones 3 of all base stations 1. In the system, the callsign radio signals are emitted only from positioned movable object 2. In this regard, on the positioned movable object 2, the second microcontroller 38 generates a control signal at the control input of the second power amplifier 36, according to which the power gain of the second power amplifier 36 takes a predetermined value. On each of the moving objects 2, which are not positioned, the second microcontroller 38 generates a control signal at the control input of the second power amplifier 36, by which the second power amplifier 36 goes into off state (power gain is zero), and the radiation of radio signals from this mobile Object 2 is impossible. When determining the location of a moving object 2, the system operates in turn in two modes: mode "Transfer

information radio signals to mobile objects 2 (main mode) and the mode “Adjustment of the frequency of reception channels of call signs of radio signals of base stations 1 (service mode).

At each base station 1, the first microcontroller 24 sets the first transceiver 4 into the mode "Transmission of information radio signals to moving objects 2.

On the positioned movable object 2, the second microcontroller 38 generates at the control input of the second controlled generator 35 a binary sequence of pulses corresponding to the code of the first of seven specified operating frequencies. The duration of the multiplexed binary pulse sequence is fixed. The second controlled generator 35 generates a high-frequency frequency-modulated signal corresponding to the specified code. This signal is fed to the input of the second power amplifier 36, the output signal of which is coupled to the input of the second transmitting antenna 37. The second transmitting antenna 37 emits a callsign radio signal into the space, which is a high-frequency frequency-modulated radio signal containing the code of the first of the seven preset operating frequencies.

At each of the base stations 1, in the zones of action 3 of which the positioned movable object 2 is located, the callsign of the radio signal emitted from the positioned movable object 2 is received. The first receiving antenna 6, which is part of each of the first transceivers 4, contained in these base stations 1, receives a call sign containing a code of the first of seven specified operating frequencies. The received callsign radio signal is input to the second band-pass filter 14. At the output of the second band-pass filter 14, tuned to the operating frequency of the callsign radio signals emitted from the positioned moving object 2,

/1//

a high frequency frequency-manipulated signal corresponding to the received call sign of the radio operates. This signal is fed to the input of an adjustable low-noise amplifier 15, from the output of which the signal is fed to the input of the second amplitude limiter 16. The second amplitude limiter 16 carries out the amplitude limitation of the signal. From the output of the second amplitude limiter 16, the signal is fed to the input of the second frequency detector 17. The second frequency detector 17 carries out frequency detection of the received callsign radio signal and generates a binary pulse sequence corresponding to the code of the first of seven specified operating frequencies. This binary sequence of pulses is fed to the input of the first microcontroller 24. At the same time, the signal from the output of the adjustable low-noise amplifier 15 is fed to the input of the second squaring unit 18, the output signal of which is fed to the input of the second integrator 19, which forms at the input of the second ADC 20 in accordance with the formula (2) a signal proportional to the strength of the received call sign of the radio signal. The digital code from the outputs of the second ADC 20 is fed to the input of the first microcontroller 24. The first microcontroller 24 determines by the digital code acting on the outputs of the second ADC 20 and the known value of the gain of the reception channel of the call sign radio signals, the power value P of the received call sign of the radio signal. First

the microcontroller 24 OSZ checks the condition P P min and

if it is executed, it makes a decision on the presence of the call sign of the radio signal of the corresponding operating frequency at the input of the first transceiver 4, otherwise the first microcontroller 24 takes the opposite decision. (If the propagation conditions of the radio waves worsen, the decrease in the power of the received call signs of the radio signals is compensated by the increase in h) of the channel strength of the call signs

a) / // n /

29th

of radio signals, which OS) Щ1, operates in the mode "Sensitivity adjustment of the reception channels of the callsign radio signals of base stations 1.) Then, the first microcontroller 24 reads from the first block 26 of the job the set value of the operating frequency of the information radio signals emitted from this base station 1, and the set identification number of this base station 1. If the specified operating frequency of the information radio signals emitted from this base station is 1, and the first of seven specified operating frequencies, the code of which is contained in the call sign If they match, then the first microcontroller 24 generates at the control input of the first controlled generator 21 a binary pulse sequence corresponding to the given identification number of this base station 1. (Otherwise, the first microcontroller 24 awaits the arrival of the following callsign radio signals.) The first controlled generator 21 configured to the first of the seven specified operating frequencies, produces a high-frequency frequency-manipulated signal, which is fed to the input of the first power amplifier 22. From the output of the first power amplifier 22, a power-amplified signal is fed to the input of the first transmitting antenna 23. The first transmitting antenna 23 emits into the space an informational radio signal thus formed containing the identification number of this base station 1, which we will further consider as the first of the base stations 1, in zones 3 of the action of which the positioned movable object 2 is located. Then, the first microcontroller 24 remembers this identification number.

The first of the seven preset operating frequencies, the code of which is contained in the call sign of the radio signal, cannot simultaneously coincide with several preset operating frequencies of the information radio signals emitted from base stations 1, in the action zones 3 of which

- a positioned movable object 2, since the specified operating frequency of the information radio signals emitted from each base station 1 is different from the specified operating frequencies of the information radio signals emitted from neighboring base stations 1. In this regard, the simultaneous emission from base stations 1, in zones 3 the actions of which the positioned movable object 2 is located, informational radio signals containing information about the identification numbers of these base stations 1 do not occur. The reception of the information radio signal emitted from the first of the base stations 1, in the zones 3 of which the positioned movable object 2 is located, is carried out at all neighboring base stations 1 using the first transceivers 4 contained therein. In this case, the first receiving antenna 6, which is part of each of these first transceivers 4, receives an informational radio signal emitted from the first of the base stations 1, in the zones of action 3 of which there is a positionable movable object 2. Received informational radio signal cash flows to the inputs of the first band-pass filters 7. Pa of each base station 1, which is adjacent to the first of the base stations 1, in zones 3 of which there is a positionable movable object 2, at the output of one of the first band-pass filters 7, tuned to the operating frequency information radio signals emitted from the first of the base stations 1, in the zones 3 of which the positioned movable object 2 is located, the high-frequency frequency-manipulator corresponding to the received information radio signal Rowan signal. This signal is fed to the input of the first low-noise amplifier 8, from the output of which the signal is fed to the input of the first amplitude limiter 9. The first amplitude limiter 9 carries out the amplitude limitation of the signal. From exit

of the first amplitude limiter 9, the signal is fed to the input of the first frequency detector 10. The first frequency detector 10 carries out frequency detection of the received information radio signal and generates a binary pulse sequence corresponding to the identification number of the first of the base stations 1, in the action zones 3 of which there is a positioned movable object 2. This the binary sequence of pulses is fed to the input of the first microcontroller 24, which determines the identification number of the first one of the base stations 1, in the zones 3 of which the positioned movable object 2 is located.

At the same time, the signal from the output of the indicated first low-noise amplifier 8 is fed to the input of the first squaring unit 11, the output signal of which is fed to the input of the first integrator 12, which, at the input of the first ADC 13, generates a signal proportional to the power of the received information radio signal in accordance with formula (2) . The digital code from the outputs of the specified first ADC 13 is supplied to the inputs of the first microcontroller 24. The first microcontroller 24 determines by the digital code acting at the output of the specified first ADC 13 and the known value of the gain of the corresponding channel for receiving information and service radio signals, the power value of the received information radio signal P "R. First

- / I7- Ave. MIN

microcontroller 24 checks the conditions -, where

, 1.2, And In the case of its implementation, decides on the availability of

the input of the first transceiver 4 of the information radio signal of the corresponding operating frequency, otherwise the first microcontroller 24 makes the opposite decision. (The coefficient K 1.2 provides a margin of sensitivity.

. ,,

32 / A / L; Y | / 1 necessary for measuring the power of received information radio signals when the propagation conditions of the radio waves are worsened and insufficient for receiving radio signals from remote base stations 1.) Then, the first microcontroller 24 remembers the measured value of the power of the received information radio signal and reads from the first block 26 tasks set at this base station 1 for the identification number of the first of the base stations 1, in zones 3 of which there is a positioned movable object 2, the values of frequency of information radio signals emitted from this base station 1, at which from this base station 1 carry out the emission of information radio signals at a given operating frequency. (At each base station 1, which is adjacent to the first of the base stations 1, in the zones of action 3 of which there is a positionable movable object 2, the only one of the specified working frequencies is the working frequency of the information radio signals from the first of the base stations 1, in the zones of action 3 of which there is a positioned movable object 2.) If the operating frequency of the received information radio signal coincides with one of the specified operating frequencies, then the first microcontroller 24 forms t at the entrainment input of the first controlled generator 21, a binary sequence of pulses corresponding to the identification number of the first of the base stations 1, in the action zones 3 of which there is a positioned movable object 2. The first controlled generator 21 generates a high-frequency frequency-manipulated signal at a given operating frequency, which is fed to the input of the first power amplifier 22. From the output of the first power amplifier 22, a power-amplified signal is fed to the input of the first transmitting antenna 23, which radiates information into the space.////,

a radio signal containing the identification number of the first of the base stations 1, in the zones 3 of which the positioned movable object 2 is located. Then, the first microcontroller 24 stores this identification number.

The reception of information radio signals emitted from base stations 1, which are adjacent to the first of the base stations 1, in the zones 3 of which there is a positioned movable object 2, is carried out at all base stations 1, which are adjacent to the designated neighboring base stations 1 using the first transceivers 4 contained in them. In this case, the first receiving antenna 6, which is part of each of these first transceivers 4, receives information radio signals from the indicated neighboring their base stations 1. Received information radio signals are fed to the inputs of the first band-pass filters 7, which select them in frequency. At each base station 1, which is adjacent to the indicated neighboring base stations 1., at the output of the first bandpass filters 7, high-frequency frequency-modulated signals corresponding to the received informational radio signals act. These signals are fed to the inputs of the first low-noise amplifiers 8, from the outputs of which the signals are fed to the inputs of the first amplitude limiters 9. The first amplitude limiters 9 carry out the amplitude limitation of the signals. From the outputs of the first amplitude limiters 9, the signals are fed to the inputs of the first frequency detectors 10. The first frequency detectors 10 carry out frequency detection of the received information radio signals and generate binary pulse sequences corresponding to the identification number of the first of the base stations 1, in the action zones 3 of which there is positioned

34I /

MOBILE object 2. These binary sequences of pulses are fed to the inputs of the first microcontroller 24, which determines by them the identification number of the first of the base stations 1, in the action zones 3 of which there is a positioned movable object 2.

At the same time, the signals from the outputs of the first low-noise amplifiers 8 are fed to the inputs of the first squaring blocks 11, the output signals of which are fed to the inputs of the first integrators 12, which, at the inputs of the first ADCs 13, generate signals proportional to the power of the received information radio signals in accordance with formula (2). Digital codes from the outputs of the first ADCs 13 are supplied to the inputs of the first microcontroller 24. The first microcontroller 24 determines by the digital codes acting on the outputs of the first ADCs 13 and the known gain values of the corresponding channels for receiving information and service radio signals, the power values Pjjp of the received information radio signals. For

each of the channels for receiving information and service radio signals

 l7- Ave. MIN

the first microcontroller 24 checks the condition / L,

where zap 1 -2, And In the case of its implementation makes a decision on the availability

at the input of the first transceiver 4 of the information radio signal of the corresponding operating frequency, otherwise the first microcontroller 24 takes the opposite decision. Then, the first microcontroller 24 stores the measured power values of the received information radio signals and reads from the first block 26 of the job set at this base station 1 for the identification number of the first of the base stations 1, in the zones 3 of which there is a positionable movable object 2, the values of the operating frequencies of the information radio signals, radiated from this base station 1, at which from this base station 1

emit information radio signals at a given operating frequency. If the operating frequency of one of the received information radio signals coincides with one of the specified specified operating frequencies, then the first microcontroller 24 generates a binary pulse sequence at the control input of the first controlled generator 21, corresponding to the identification number of the first of the base stations 1, in which action zones 3 are located movable object 2. The first controlled generator 21 generates a high-frequency frequency-manipulated signal at a given operating frequency, which falls on the input of the first power amplifier 22. From the output of the first power amplifier 22, a power-amplified signal is fed to the input of the first transmitting antenna 23, which emits into the space an information radio signal containing the identification number of the first of the base stations 1, in the action zones 3 of which there is a positionable movable object 2. Then, the first microcontroller 24 remembers this identification number.

By analogy with the above, the first transceivers 4, which are part of all other base stations 1, receive and emit information radio signals containing information about the identification number of the first of the base stations 1, in the action zones 3 of which there is a positioned movable object 2, as well as storing this identification number. At the same time, at each base station 1, they measure the power of information radio signals from neighboring base stations 1 and store the measured power values in the first microcontroller 24.

Information radio signals emitted from each base station 1 penetrate through the first receiving antennas 6 to the inputs of the first

transceivers 4, which are part of neighboring base stations 1. However, this does not cause a loop of the system, since the radiation of information radio signals from each base station 1, except for base station 1, the identification number of which is contained in the transmitted information radio signals, is carried out only upon reception at this base station 1 information radio signals of one of the operating frequencies set at this base station 1. In this case, the radiation of information radio signals from the base station 1, the identification number of which is contained in the transmitted information radio signals, is carried out independently of the operation of neighboring base stations 1.

Thus, the first transceivers 4 included in cocTaiB base stations 1, in accordance with the information contained in the first task blocks 26, sequentially, in all directions from the base station 1, which is the source of the transmitted information, to the boundaries of the served territory on all other subsequent base stations 1, which are adjacent to the previous base stations 1, receive informational signals emitted from previous base stations 1 and they often at the corresponding preset working ah.

At each movable object 2 located within the service area, the second receiving antenna 27, which is part of the second transceiver 5 located on it, shown in FIG. 4, receives informational radio signals emitted from base stations 1, in the action zones 3 of which this movable object 2 is located. These informational radio signals contain the identification number of the first of the base stations 1, in the action zones 3 of which there is a positioned movable object 2. Signals from the second output receive antenna 27 go to the inputs

imf third bandpass filters 28, which perform their selection in frequency. Sigpals from the outputs of the third bandpass filters 28 are fed to the inputs of the second low-noise amplifiers 29, the signals from the outputs of which are fed to the inputs of the third amplitude limiters 30. The third amplitude limiters 30 carry out the amplitude limitation of the signals. From the outputs of the third amplitude limiters 30, the signals are supplied to the inputs of the third frequency detectors 31, which carry out the frequency detection of the received information radio signals. The binary pulse sequences generated by the third frequency detectors 31 are fed to the inputs of the second microcontroller 38. At the same time, the signals from the outputs of the second low-noise amplifiers 29 are fed to the inputs third blocks 32 squaring, the output signals of which are fed to the inputs of the third integrators 33, which are at the inputs retih ADC 34 is formed in accordance with formula (2) signals proportional to the received power information signals. Digital codes from the outputs of the third ADCs 34 are supplied to the inputs of the second microcontroller 38. The second microcontroller 38 determines by the digital codes acting on the outputs of the third ADCs 34 and the known values of the gain factors of the respective channels for receiving informational radio signals, the power values P of the received informational radio signals. For each of the channels for receiving informational radio signals, the second microcontroller 38 checks the condition Р Рпр.mш and, if it is fulfilled, makes a decision on the presence of an appropriate operating frequency at the input of the second transceiver 5 of the informational radio signal, otherwise the second microcontroller 38 takes the opposite decision. Then, the second microcontroller 38 processes the binary sequences of pulses acting on the outputs of the corresponding third frequency children 31, and remembers the identification number of the nerve from the base stations 1, in the action zones 3 of which there is a positioned movable object 2. At each base station 1, after the formation of the information a radio signal containing the number of the first of the base stations 1, in the zones of action 3 of which there is a positionable movable object 2, the first microcontroller 24 leads the first the transmitter 4 to the mode "Frequency adjustment of the reception channels of the callsign radio signals of the base stations 1. After a fixed time interval significantly exceeding the duration of the information radio signal containing the number of the first of the base stations 1, in the action zones 3 of which the positioned movable object 2 is contained, the first microcontroller 24 forms the control input of the first controlled generator 21 is a binary sequence of pulses containing service information about the power of information radio signal fishing radiated from this base station 1. (Determining the power of the information radio signals emitted from this base station 1, the first microcontroller 24 carries out the known and fixed values of the gain in power of the first power amplifier 22 and all other parameters of the transmitting path of the first transceiver 4.) The first controlled generator 21 generates a high-frequency frequency-manipulated signal at a given operating frequency, which is fed to the input of the first power amplifier 22. From the output of the first power amplifier 22, a power-amplified signal is fed to the input of the first transmitting antenna 23, which emits a service radio signal into the space containing information about the power of information radio signals emitted from this base station 1.

At each of the neighboring base stations 1, the first receiving antenna 6 receives the service radio signals emitted from the base stations 1, which are adjacent to the indicated neighboring base stations 1. The received service radio signals are fed to the inputs of the first band-pass filters 7, which select them by frequency. At each indicated neighboring base station 1, at the output of the first band-pass filters 7, high-frequency frequency-manipulated signals corresponding to the received service radio signals operate. These signals are fed to the inputs of the first low-noise amplifiers 8, from the outputs of which the signals are fed to the inputs of the first amplitude limiters 9. For the first time, the amplitude limiters 9 carry out the amplitude limitation of signals. From the outputs of the first amplitude limiters 9, the signals are fed to the inputs of the first frequency detectors 10. For the first time, frequency detectors 10 carry out frequency detection of received overhead radio signals and generate binary sequences of pulses,

relevant information about the power of information radio signals emitted from base stations 1, which are adjacent to the indicated neighboring base stations 1. These binary pulse sequences are fed to the inputs of the first microcontroller 24. Similarly to the above, the first microcontroller 24 makes a decision about the presence or absence of an input the first transceiver 4 service radio signals of the corresponding operating frequencies by comparing the values of their power

 minutes 1 tt

With a threshold value ---, where K. 1.2. On each of these

of neighboring base stations 1, the first microcontroller 24 determines the ratio of the measured power values of the information radio signals received at this base station 1 to the corresponding values of the power of information radio signals emitted by the base stations 1, which are adjacent to the indicated neighboring base station 1, and determines the arithmetic mean value obtained relations of power values. The first microcontroller 24 determines, using the formula (4), from the obtained arithmetic mean value, the required sensitivity value Рпршш of the channel for receiving callsign radio signals. Then, the first microcontroller 24 generates a control signal at the control input of the adjustable low-noise amplifier 15, in accordance with which the gain of the adjustable low-noise amplifier 15 takes a value at which the sensitivity of the reception channel of the callsign radio signals is equal to. Ms By analogy with the above “Information radio signals to mobile objects 2 in the mode "Sensitivity adjustment of the reception channels of the callsign radio signals of the base stations 1 second transceivers 5, placed e on mobile objects 2, receive service radio signals emitted from base stations 1, in the zones 3 of which they are located. At the same time, in every second transceiver 5, the second microcontroller 38 blocks the display of service information on the second indicator 39 based on the analysis of the received service radio signals. The mode "Adjustment of the frequency of reception channels of the callsign radio signals of base stations 1 has a fixed duration that is the same for all base stations 1. Pa of each base station 1 at the end of the "Adjustment of the sensitivity of the reception channels of the callsign radio signals of base stations 1, the first microcontroller 24 sets the first transceiver 4 in the mode" Transmission of information radio signals to moving objects 2.

On the positioned movable object 2, after the end of the radiation of the call sign of the radio signal containing the code of the first of the seven specified operating frequencies, after a certain predetermined time interval, the second microcontroller 38 forms a binary pulse train at the control input of the second controlled generator 35, corresponding to the code of the second of the seven specified operating frequencies. The duration of the indicated binary pulse sequence is fixed. The duration of the specified time interval is also fixed and many times exceeds the duration of each of the information radio signals. The second controlled generator 35 generates a high-frequency frequency-shift key signal corresponding to the specified code. This signal is fed to the input of the second power amplifier 36, the output signal of which is fed to the input of the second transmitting antenna 37. The second transmitting antenna 37 emits a callsign radio signal into the space, which is a high-frequency frequency-manipulated radio signal containing the code of the second of seven specified operating frequencies.

Then, similarly to that described above at base stations 1, in zones 3 of which the positioned movable object 2 is located, they receive this call sign of the radio signal. If at one of these base stations 1 the predetermined operating frequency of the information radio signals emitted from this base station 1, and the second of the seven specified operating frequencies, the code of which is contained in the call sign of the radio signal, are matched, then from this base station 1 they carry out the emission of an informational radio signal containing

the identification number of this base station 1, and then this identification number is stored in the first microcontroller 24. (As already indicated, this base station 1 is not

42 / IM H / I- J

may be the first of the base stations 1 considered above, in the action zones 3 of which there is a positionable movable object 2.)

Then, the reception and emission of information radio signals containing the identification number of the second of the base stations 1, in the zones 3 of which there is a movable object 2, as well as storing the specified identification number is carried out similarly to the above using the first transceivers 4 included in all base stations 1, except the last base station 1. The reception of these information radio signals and the storage of the specified identification number is carried out similarly as described above using the second when emitter 5 on moving objects 2, located within the boundaries of the served territory.

Then, the second transceiver 5, located on the positioned movable object 2, likewise alternately emits callsign radio signals containing, respectively, codes from the third to the seventh of seven predetermined operating frequencies with a time interval of the indicated duration.

In accordance with this, throughout the entire radiation cycle of call signs of radio signals from all base stations 1, in the zones of action 3 of which a positioned movable object 2 is located, similarly alternate transmission of information radio signals to mobile objects 2 within the served territory is carried out. The number of base stations 1, in the zones 3 of which the positioned movable object 2 is located, lies, as already mentioned, in the range from three to seven.

When transmitting informational radio signals from each of the base stations 1, in the zones of action 3 of which there is a moving object 2, to moving objects 2 located within the service area, the first transceivers function in the “Adjusting the sensitivity of the reception channels of the callsign radio signals of base stations 1” mode as described above 4, which are part of each base station 1. We assume that the change in location of the positioned movable object 2, occurring during one radiation cycle poses There are negligible radio signals. In the first transceiver 4, which is part of each base station 1, at the end of each time interval equal to the duration of one radiation cycle of the callsign radio signals, the first microcontroller 24 is stored on the identification numbers of the base stations 1, in the zones of action 3 of which there is a positioned movable object 2, reads from the first block 26 the job coordinates of the location and the values of the radii of the zones 3 of the action of these base stations 1 and determines using the formula (3) the location of the positioned mobile The object 2. Then, the first microcontroller 24 generates at the inputs of the first indicator signals 25 for displaying information about the location of the mobile object 2 positioned in the service area. In the second transceiver 5, located on each movable object 2, at the end of each time interval equal to the duration of one radiation cycle of the callsign radio signals, the second microcontroller 38 is stored on the stored identification numbers of base stations 1, in the action zones 3 of which the positioned movable object 2 is located from the second block 40 sets the coordinates of the location and the values of the radii of the zones 3 of the action of these base stations 1 and determines using the formula (3) the location of the positioned mobile object 2. Then the second microcontroller 38 generates at the inputs of the second indicator 39 signals for display

information about the location of the positioned movable object 2 on the served territory.

At base stations 1 and on moving objects 2, the first microcontrollers 24 and the second microcontrollers 38, respectively, count the indicated time intervals autonomously, without synchronizing relative to each other the time points of the reference time.

Thus, the system can significantly increase, compared with the prototype, the accuracy of determining the location of moving objects 2 located in the central areas of zones 3 of the action of base stations 1. APPENDIX 1

to the application for a utility model

"MOBILE LOCATION DETERMINATION SYSTEM

Authors: Uretsky Ya.S., Kupershmidt P.V. et al. FIRST MICROCONTROLLER 24 OPERATION ALGORITHM

: 1; 0 7; G-0; Hz

The mode "Transmission of information radio signals to moving objects 2

Determination of the received power of the received signal by the digital code acting on the outputs of the second ADC 20 and the known value of the gain of the reception channel of the callsign radio signals

call sign and comparison of this value

power with value / 1

OBJECT

Start

min min

eleven

9a

x

/

not

chx

Reading from the output of the second frequency detector 17 of the binary sequence of pulses corresponding to the code of one of the Q specified operating frequencies

Reading from the first block 26 of setting the value of a given operating frequency of the information radio signals emitted from this base station 1, and a given identification number n of this base station 1

2a X

Yes

X

Determination for each of the channels of receiving information radio signals by the digital code acting on the outputs of the first ADC 13 and the known value of the gain of the corresponding channel for receiving information radio signals, the power of the received information radio signal and comparing this value

with value

Storing the measured power values of the received information radio signals

Determination of the identification number n of the base station 1, in the zone 3 of which the positioned movable object 2 is located, by binary sequences of pulses acting at the outputs of the first frequency detectors 10

Reading from the first block 26 of the job set at this base station 1 for the identification number n of the base station 1, in the zone 3 of which there is a positioned movable object 2, the values of the operating frequencies of the information radio signals received at this base station 1, at which from this base station 1 carry out the emission of information radio signals at a given operating frequency

ШШ

4a

5 xx

The operating frequency of the received information radio signal coincides with one of these specified operating frequencies

The formation at the control input of the first controlled generator 21 of a binary sequence of pulses corresponding to the identification number n of the base station 1, in the zone 3 of the action of which is a positioned movable object 2

Memorization of the identification number of the base station 1, in the zone 3 of which there is a positioned movable object 2

Mode "Adjusting the sensitivity of the reception channels of the callsign radio signals of base stations 1

The formation at the control input of the first controlled generator 21 of a binary sequence of pulses containing service information about the power of information radio signals emitted from this base station 1

Determination for each of the channels for receiving radio signals by the digital code acting on the outputs of the first ADC 13 and the known value of the gain of the corresponding channel for receiving radio signals, the power value of the received service radio signal P and comparing this power value with the value

36

min

to.

X

Determination of the arithmetic mean value

- g PR - ism

in relation to the measured power

the information radio signals received at this base station 1 to the corresponding power values of the information radio signals radiated from neighboring base stations 1

/ W // W SV

6a

Behind

lG {) 4i (

86

8a

9a

46

Reading from the first block 26 of setting the coordinates of the location and the radii of the zones 3 of the action of the base stations 1, in the zones 3 of the actions of which the positioned moving object 2 is located, by the stored identification numbers "k of these base stations 1

Positioning of a positioned moving object 2

(x-xJ + {-yJ R (.-.

(((

// fo i

10

96

10

/

eleven

The formation of the inputs of the first indicator 25 signals to display information about the location of the positioned movable object 2 on the served territory

X

10

eleven

APPENDIX 2

to the application for a utility model

"SYSTEM OF DETERMINING THE LOCAL LOCATION OF MOBILE

Authors: Uretsky Ya.S., Kupershmidt P.V. SECOND MICROCONTROLLER 38 ALGORITHM

The formation at the control input of the second power amplifier 36 of the control signal, according to which the power gain of the second power amplifier 36 takes a predetermined value

The formation at the control input of the second controlled generator 35 of a binary sequence of pulses corresponding to the q-th code of Q given operating frequencies

OBJECT

Start

la

Formation of a control signal at the control input of the second power amplifier 36, through which the second power amplifier 36 goes into an off state

The determination for each of the channels for receiving informational radio signals by the digital code acting on the outputs of the third ADC 34 and the known value of the gain of the corresponding channel for receiving informational radio signals of the power value P of the received informational radio signal and comparing this power value P.

values with

 P

min

x

At the input of the second transceiver 5 act information radio signals of the corresponding operating frequencies

Reading from the outputs of the third frequency detectors 31 binary sequences of pulses

For X

-M

For u

Reading from the second block 40 the coordinates of the location and the values of the radii of the zones 3 of the action of the base stations 1, in the zones 3 of the actions of which there is a positioned movable object 2, by the stored identification numbers "k of these base stations 1

J) K "

.

36

4a

46

 0

Claims (1)

A system for determining the location of a moving object, containing the first transceivers that are one each of the base stations located in the centers of the conditional cells, which are equal regular hexagons, tightly spaced among themselves, densely covering the served area, with a given on each of these base stations the transmission frequency of this base station, which is one of seven given different frequencies, the radii of the zones of action of these base stations are set equal to the length of the side of each pr of the hexagon, the second transceivers, placed one at a time on each of the moving objects located within the coverage areas of all base stations, with the transmission frequency and reception frequencies of this second transceiver set on each second transceiver, and the specified transmission frequencies of all second transceivers are equal to each other and are different from any of these seven preset frequencies, each of these base stations also has a reception frequency of this base station that matches the given hour the transmission of each second transceiver, characterized in that the system additionally contains the first transceivers, one each of the base stations, additionally located at the vertices of these regular hexagons, with the transmission frequency of this base station being one of these base stations being one of the seven specified frequencies, and the reception frequency of this base station, which coincides with the specified transmission frequency of each second transceiver, these radiuses base stations are set equal to the side length of each regular hexagon, the given transmission frequency of each base station is different from the given transmission frequencies of neighboring base stations, the given reception frequencies of each second transceiver are five different of these seven preset frequencies, the first transceiver included in each base station contains a first receiving antenna, six channels for receiving information and service radio signals, each of which contains a first bandpass filter tr, first low-noise amplifier, first amplitude limiter, first frequency detector, first squaring unit, first integrator, analog-to-digital converter, first transceiver also contains one channel for receiving callsign radio signals, which contains a second band-pass filter, an adjustable low-noise amplifier, and a second amplitude a limiter, a second frequency detector, a second squaring unit, a second integrator, a second analog-to-digital converter, the first transceiver also contains a controlled oscillator, a first power amplifier, a first transmitting antenna, a first microcontroller, a first indicator, a first reference unit, and the output of the first receiving antenna is connected to the inputs of all first bandpass filters, each of which is tuned to a given transmission frequency of one of the corresponding neighboring base stations, in each channel for receiving information and service radio signals, the output of the first bandpass filter is connected to the input of the first low-noise amplifier, the output of which is connected to the input of the first o limiter, the output of which is connected to the input of the first frequency detector, the output of the first low-noise amplifier is also connected to the input of the first squaring unit, the output of which is connected to the input of the first integrator, the output of which is connected to the input of the first analog-to-digital converter, the output of the first receiving antenna is connected also to the input of the second band-pass filter tuned to a predetermined transmission frequency of the second transceivers in the channel of receiving callsign radio signals the output of the second band-pass filter is connected n to the input of the adjustable low-noise amplifier, the output of which is connected to the input of the second amplitude limiter, the output of which is connected to the input of the second frequency detector, the output of the adjustable low-noise amplifier is also connected to the input of the second squaring unit, the output of which is connected to the input of the second integrator, the output of which is connected with the input of the second analog-to-digital converter, the outputs of all the first frequency detectors, the outputs of all the first analog-to-digital converters, the output of the second frequency detector the core and the output of the second analog-to-digital converter are connected to the corresponding inputs of the first microcontroller, the outputs of which are connected to the control input of an adjustable low-noise amplifier, as well as to the control input of the first controlled generator tuned to a given transmission frequency of this base station, the output of the first controlled generator is connected to the input the first power amplifier, to the output of which the first transmitting antenna is connected, the outputs of the first block are connected to the inputs of the first microcontroller and tasks, the inputs of the first indicator are connected to the outputs of the first microcontroller, the second transceiver located on each moving object contains a second receiving antenna, five channels for receiving information radio signals, each of which contains a third band-pass filter, a second low-noise amplifier, a third amplitude limiter, and a third frequency a detector, a third squaring unit, a third integrator, a third analog-to-digital converter, the second transceiver also contains a second controlled generator , a second power amplifier, a second transmitting antenna, a second microcontroller, a second indicator, a second reference unit, and the output of the second receiving antenna is connected to the inputs of all third bandpass filters, each of which is tuned, respectively, to one of the given reception frequencies of this second transceiver, in the output of the third bandpass filter is connected to the input of the second low-noise amplifier, the output of which is connected to the input of the third amplitude limiter, whose output connected to the input of the third frequency detector, the output of the second low-noise amplifier is also connected to the input of the third squaring unit, the output of which is connected to the input of the third integrator, the output of which is connected to the input of the third analog-to-digital converter, the outputs of all third frequency detectors and the outputs of all third analog -digital converters are connected to the corresponding inputs of the second microcontroller, one of the outputs of the second microcontroller is connected to the control input of the second controlled gene a rotor tuned to a given transmission frequency of the second transceivers, the other output of the second microcontroller is connected to the control input of the second power amplifier, the output of the second controlled generator is connected to the input of the second power amplifier, the output of which is connected to the second transmitting antenna, the outputs of the second task unit are connected to the inputs of the second microcontroller , the outputs of the second indicator are connected to the outputs of the second microcontroller.