RU19672U1 - MOBILE INFORMATION TRANSMISSION SYSTEM - Google Patents

Abstract

A system for transmitting information to moving objects, containing transceivers that are one each of the base stations located in arbitrary cells, which are equal regular hexagons, densely spaced among themselves, densely covering the served territory, with the transmission frequency set at each base station base station, which is one of the given different frequencies, the radii of the zones of action of these base stations are set equal to the side length of each regular hexagon, radio receivers placed one at a time on each of the moving objects located within the coverage areas of all base stations, with given reception frequencies of each radio receiver, characterized in that the base stations are located at the vertices of the indicated regular hexagons, the number of specified different frequencies, of which on each base the station is assigned one transmission frequency of this base station, equal to six, the given transmission frequency of each base station located at the top of the regular hexagons is different from the given hours the transmission frequency of neighboring base stations located at the neighboring vertices of these regular hexagons, the preset receive frequencies of each radio receiver are five different of these six preset frequencies, the transceiver included in each base station contains a first receive antenna, three channels for receiving radio signals, each of which contains a first bandpass filter, a first low-noise amplifier, a first amplitude limiter, a first frequency detector, a first squaring unit, a first integrator,

Description

MOBILE INFORMATION TRANSMISSION SYSTEM

The technical solution relates to mobile radio communications, and in particular to systems for transmitting information to mobile objects.

A well-known personal radio call system (see, for example, Gromakov Yu.A. Standards and mobile radio communication systems. - M .: EcoTrendz, 2000, p. 10-52), containing a radio transmitter with a given radius of coverage, covering the served territory, and radios placed one at a time on each of the moving objects within the coverage area of the specified radio transmitter.

The specified system allows using one radio transmitter to transmit information to all mobile objects located within the served territory. However, when transmitting information to mobile objects located within a sufficiently vast served territory, a high-power radio transmitter must be used in the system, which worsens the environmental and economic performance of the system.

A well-known cellular radio communication system (see, for example, Ratinsky MV Fundamentals of cellular communications. Edited by DB Zimin. - M .: Radio and communications, 2000, p.20-68), containing the first transceivers included one in 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 each regular side

OBJECTS

a hexagon, and with the transmission frequency of this base station specified at each base station, which is one of seven different frequencies, different from the transmission frequencies of neighboring base stations, the reception frequencies of this base station are also set at each base station, the second transceivers placed one at a time on each of the moving objects located within the coverage areas of all base stations, with predetermined transmission frequencies and reception frequencies of each second transceiver, and the specified reception frequencies of the bases stations coincide with the preset transmission frequencies of each second transceiver, which are different from any of the preset transmission frequencies of the base stations, the preset reception frequencies of each second transceiver are all seven preset transmission frequencies of the base stations, the switching center, fiber-optic communication lines connecting the switching center to the base stations.

The specified system allows radio communication between mobile objects located within a sufficiently vast served territory, and, in particular, transmit information from one of the base stations, which is the source of the transmitted information, to these mobile objects. At the same time, relatively low-power first transceivers and second transceivers can be used in the system.

However, to transfer information from the base station, which is the source of the transmitted information, to the base stations, in the areas of which these mobile objects are located, the system uses a switching center and fiber-optic communication lines connecting the switching center to base stations, which complicates the system. In this case, radio communication between base stations without the use of additional radio channels is impossible, since at given

the values of the radii of the coverage areas of base stations and the parameters of the placement of base stations in the served territory distance

between any two neighboring base stations, V3 times the radius of their zones of action.

In addition, since the coverage areas of neighboring base stations overlap slightly, within the central sections of the coverage area of each base station, only radio signals of this base station can be received, and therefore the number of preset reception frequencies of each of the second transceivers located on moving objects cannot be less than seven, which also complicates the system.

Along with this, with the given values of the radii of the coverage areas of base stations and the placement parameters of base stations in the served territory, the system does not allow the reception of these information radio signals at neighboring base stations when measuring information radio signals from each base station, measuring their power and adjusting at each base station the power of the emitted information radio signals according to the measured power values, which leads to a decrease in the quality of information reception at moving objects When you change the radii of the zones of the base station due to a change of radio wave propagation conditions.

The technical task to be solved is to simplify the system of transmitting information to mobile objects and to improve the quality of information reception on mobile objects based on the rational placement of base stations in the served territory.

The solution of a technical problem in a system for transmitting information to moving objects, containing transceivers that are one each of the base stations located in arbitrary cells, which are equal regular hexagons,

densely spaced, densely covering the served territory, with the transmission frequency of this base station being one of the given different frequencies set at each base station, the radii of the coverage areas of these base stations are set equal to the side lengths of each regular hexagon, radios placed one on each of mobile objects located within the coverage areas of all base stations, with given reception frequencies of each radio receiver, is achieved by the fact that the base stations are located at the vertices of the indicated regular hexagons, the number of specified different frequencies, of which one base station has a transmission frequency of this base station, is six, the specified transmission frequency of each base station located at the top of the regular hexagons is different from the specified transmission frequencies of neighboring base stations located at the neighboring vertices of these regular hexagons, the preset receive frequencies of each radio are five different of the specified six preset frequencies, the transmitter, which is part of each base station, contains a first receiving antenna, three channels for receiving radio signals, each of which contains a first bandpass filter, a first low-noise amplifier, a first amplitude limiter, a first frequency detector, a first squaring unit, a first integrator, a first analog -digital converter, transceiver also contains an electronic switch, a controlled generator, an adjustable power amplifier, a transmitting antenna, a first microcontroller, a reference unit, and you the path of the first receiving antenna is connected to the inputs of all the first band-pass filters, each of which is tuned to a given transmission frequency of one of the corresponding neighboring base stations, in each channel of the reception of radio signals the output of the first band-pass filter

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, 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 with the input of the first analog-to-digital converter, the outputs of all the first analog-to-digital converters are connected to the corresponding inputs of the first microcontroller, the outputs of all The first frequency detectors are connected to the corresponding switched inputs of the electronic switch, the outputs of the first microcontroller are connected to the control input of the adjustable power amplifier, to one of the switched inputs and to the control inputs of the electronic switch, the output of which is connected to the control input of the controlled generator tuned to the given transmission frequency of this basic station, the output of the controlled generator is connected to the input of an adjustable power amplifier, the output of which is connected to the antenna, the reference unit is connected to the inputs of the first microcontroller, the radio receiver contains a second receiving antenna, five channels for receiving radio signals, each of which contains a second bandpass filter, a second low-noise amplifier, a second amplitude limiter, a second frequency detector, a second squaring unit, and a second integrator , the second analog-to-digital converter, the radio receiver also contains a second microcontroller, an indicator, and the output of the second receiving antenna is connected to the inputs of all the second strip filters, each of which is tuned accordingly to one of the given reception frequencies of this radio receiver, in each channel for receiving radio signals, the output of the second band-pass filter is connected to the input of the second 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 second 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 of the second analog-to-digital converter, the outputs of all the second frequency detectors and the outputs of all second analog-to-digital converters are connected to the corresponding inputs of the second microcontroller, the outputs of which are connected to the indicator inputs.

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. 1 shows conditionally base stations located in 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 in which the number of base stations is fifty-four; the number of mobile objects is five.

In FIG. 2 shows a system for transmitting information to mobile objects for the case in which the number of transceivers that are one each of the base stations is twelve, and the number of radio receivers placed one on each of the mobile

objects, equal to three, and moving objects in FIG. 2 are not shown.

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

In FIG. 4 shows a radio placed 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 number n, where n 1,2, ..., // are positive integers; 2t - movable object 2 with number t, where t 1,2, ..., M are positive integers; 3 „- zone 3 of the action of the base station 1„; fq - operating frequency of the radio signals emitted from the base

station 1, where q l, 2, ..., Q are positive integers. In those cases

when 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, at the vertices of the conditional cells, which are equal regular hexagons, densely covering the served territory, place, as shown in FIG. 1, base stations 1 (base stations lj - $ 4), the radii of zones 3 of which are set equal to the length of the side of each regular hexagon.

With this arrangement of base stations 1 on the served territory, no more than three base stations 1 are adjacent 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.

Moreover, 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 of radio signals of power Pqlim at the operating frequency fq, the 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 prmin characterizing the sensitivity of the reception channels

of radio signals at base stations 1 and at moving 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 fq, the power of these radio signals when

Omnidirectional reception at this base station 1, not less than the same value Pprush.

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

D C 9ISL / 14

 -,(1)

4 URpr.min

 q np.l

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.

82l 9/7 3.9

When placing base stations 1 at the vertices of conditional cells, which are equal regular hexagons, densely covering 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 the points of placement of neighboring base stations 1. In Fig.1, the boundaries of the zones 3 of the action of base stations 1 are shown conditionally 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

ta t tb according to the formula (see, for example, A.M. Trakhtman. Introduction to the generalized spectral theory of signals. - M.: Soviet Radio, 1972, p.14)

P -. (2)

The system uses information and service radio signals. If in the present description the type of radio signals is not specified, then they can be both information and service radio signals.

Six different operating frequencies (0 6) of the radio signals emitted from all base stations 1 are set. Of the six specified operating frequencies at each base station 1, are 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 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. In this case, the frequency bands

; 2L) b / Us $ 3 Q

9 J

Radio signals corresponding to different operating frequencies are non-overlapping.

Information signals corresponding to information transmitted to mobile objects 2 located within the served territory are transmitted from one of the base stations 1, which is the source of the transmitted information, to base stations 1, in the zones of action 3 of which mobile objects 2 are located. From these base stations 1 carry out the emission of information radio signals corresponding to the transmitted information. In this case, information signals corresponding to information transmitted to mobile objects 2 located within the service area are the corresponding information radio signals.

The transmission of information radio signals from the base station 1, which is the source of the transmitted information, to the base stations 1, in the zones of action 3 of which are moving objects 2, is as follows. From the base station 1, which is the source of the transmitted information, radiation of information radio signals is carried out at a given operating frequency. Moreover, at all base stations 1, which are adjacent to the base station 1, which is the source of the transmitted information, simultaneously receive information radio 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, simultaneously 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 base station 1,

which is the source of the transmitted information, to the boundaries of the served territory at all other subsequent base stations 1, which are adjacent to the previous base stations 1, simultaneously receive information radio signals emitted from previous base stations 1 and emit them at the corresponding given operating frequencies.

To ensure the transmission of informational radio signals from the base station 1, which is the source of the transmitted information, to the base stations 1, in zones 3 of which there are movable objects 2, and, therefore, to all other base stations 1, without “looping at each base station 1 , in addition to the base station 1, which is the source of the transmitted information, set the operating frequencies of the information radio signals received at this base station 1, at which the information radio is emitted from this base station 1 signals at a given operating frequency.

With the indicated placement parameters on the served territory of base stations 1 with the specified radii of action zones 3 at each point of the served territory, at least two action zones 3 of neighboring base stations 1 overlap. Since the emission of information radio signals from neighboring base stations 1 is carried out at different operating frequencies, each the receiving point receives information radio signals of at least two different specified operating frequencies. 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 six specified operating frequencies.

On mobile objects 2, information radio signals emitted from base stations 1 are received, in the zones of action 3 of which these mobile objects 2 are located. At the same time, information radio signals on mobile objects 2 are received at specified operating frequencies, which are five different on each mobile object 2 from six given operating frequencies.

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 two zones 3 of the activity of neighboring base stations 1. Thus, for example, the border of the served territory shown in FIG. 1, can be a closed polygonal line passing through all the extreme base stations 1 (base stations li, 15, b, U, b, b,

111, Il6, bl, b, b, b, b, 143, u, b, 154, b, b, 9, b, 148, 144, b, 9, 134, b, 122, il7, il2, b, u) information on moving objects 2 in the conditions of propagation of radio waves in free space to provide a given value of the radius R of the zone 3 of action of each base station 1 with known values of the operating frequency fq and sensitivity P ,,

channels of receiving radio signals, in accordance with formula (1), it is necessary to provide the required value of the power Pqwxl emitted

informational radio signals. However, when the propagation conditions of radio waves deteriorate, which occurs, for example, when the base stations 1 are shaded and when the radio waves attenuate in the atmosphere, the radius of the zones 3 of the base stations 1 decreases, which leads to a decrease in the quality of information reception at moving objects 2. Therefore, to ensure the required quality receiving information on moving objects 2 at each base station 1 is necessary

adjust the power of radiated information radio signals.

At each base station 1, the power of information radio signals received from neighboring base stations 1 is measured. Then, overhead radio signals containing information about the measured power values are emitted from each base station 1. At each of the indicated neighboring base stations 1, the indicated radio signals are received and the power of the emitted information radio signals is adjusted according to the measured values of the power of the information radio signals received at the base stations 1, which are adjacent to the indicated neighboring base station 1, and emitted from this base station 1 .

The power control of the radiated information radio signals at each of these neighboring base stations 1 is carried out, for example, by the minimum power value from the measured power values of the information radio signals received at the base stations 1, which are adjacent to the specified neighboring base station 1, and radiated from this base station 1 using the formula

PP

p rpr.minr pr min.-.

diesel iz 7) P rev. min - Y v /

rev. av. min hall

where Rism pr min - the minimum value of power from the corresponding measured power values of the information radio signals; RCHKK1 value of the power of the emitted information radio signals, which are set at the base station 1 in the process of adjustment according to the measurement results; Kzap 1 - coefficient determining the stock for

2 ss // ySh9

thirteen

Formula (3) shows that at each base station 1 in the process of adjusting the power of the radiated information radio signals, it is necessary to set a power value at which

the equality of the measurement is carried out. min prmin- At the same time, the power of the radiated information radio signals is adjusted

g, PR.MIN

upon fulfillment of the condition .. - ;.

When temporarily separating the information and service radio channels at each base station 1, the specified operating frequencies of the radio signals are used to emit the service radio signals. In this case, the radiation of information and service radio signals is carried out at various points in time.

The system for transmitting information to moving objects 2 is shown in FIG. 2. The system comprises transceivers 4, one each of which is included in each of the base stations 1, and radio receivers 5, placed one at a time on each of the movable objects 2, located within the service area. In FIG. 2, as an example, a system is shown containing twelve transceivers 4 and three radio receivers 5. In this case, a description of the system and operation of this system is given for an arbitrary number of transceivers 4, one each of which is a base station 1, and radio receivers 5, placed one on one each of the movable objects 2 located within the serviced territory.

Base stations 1 are located at the tops of 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. In each

at least two zones 3 of the activity of neighboring base stations 1 overlap the point of the served territory.

The transmission frequency of the base station 1 is the corresponding operating frequency of the radio signals emitted from this base station 1. The receiving frequency of the radio 5 is the corresponding operating frequency of the information radio signals received at the corresponding 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 six preset different operating frequencies at each base station 1, the transmission frequency of this base station 1 is set, different from the preset transmission frequencies of neighboring base stations 1. Of these six preset operating frequencies on each moving object 2, five different reception frequencies of the radio 5, located on this moving object 2.

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

The transceiver 4 included in each base station 1 shown in FIG. 3, contains a first receiving antenna 6, three channels for receiving radio signals, each of which contains a first band-pass filter 7, a first low-noise amplifier 8, a first amplitude limiter 9, a first frequency detector 10, a first squaring block And, a first integrator 12, a first analog-digital converter (ADC) 13. The transceiver 4 also contains an electronic switch 14, a controlled generator 15, an adjustable power amplifier 16, a transmitting antenna 17, a first microcontroller 18, a task unit 19.

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, is connected to the inputs of all the first bandpass filters 7. Information and service radio signals are high-frequency frequency-manipulated 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 respective 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. The passbands of the first bandpass filters 7 are non-overlapping. In each channel for receiving radio signals, 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 connected 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 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

received radio signals. The output of the first integrator 12 is connected to the input of the first ADC 13. The outputs of all the first ADCs 13 are connected to the corresponding inputs of the first microcontroller 18. The first microcontroller 18 is used to control the electronic switch 14, to form modulating binary sequences of pulses corresponding to service information transmitted to neighboring base stations 1, for adjusting the gain in power of the adjustable power amplifier 16, as well as for forming in the transceiver 4 contained in the bases station 1, which is a source of transmitted information modulating a binary sequence of pulses, corresponding information transmitted to moving objects 2. The outputs of all first frequency detectors 10 are connected to the corresponding switched inputs of the electronic switch 14, as well as to the corresponding inputs of the first microcontroller 18. The outputs of the first microcontroller 18 are connected to one of the switched inputs and to the control inputs of the electronic switch 14, as well as to the control input of an adjustable amplifier eating 16 power. The output of the electronic switch 14 is connected to the control input of the controlled generator 15, tuned to a given frequency of transmission of this base station 1. The controlled generator 15 is used to generate high-frequency frequency-manipulated signals corresponding to the transmitted information, and high-frequency frequency-manipulated signals corresponding to the service information transmitted to neighboring base stations 1. The output of the controlled generator 15 is connected to the input of an adjustable power amplifier 16, to the output of which connected to the transmitting antenna 17 are designed to non-directional radiation in space and service information signals. To the entrances

the first microcontroller 18 is connected to the outputs of the task unit 19, which at the base station 1, which is the source of the transmitted information, serves to enter into the first microcontroller 18 information intended for transmission to moving objects 2, and at each of all other base stations 1 to set values 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.

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 controlled generator. Voltage controlled oscillators are known and described in the literature devices. (See, for example, Horowitz P., Hill. W. The art of circuitry. In 3 volumes: Vol. 1. Transl. From English. - 4th ed. Revised and enlarged M .: Mir, 1993, p. 308.) By the tuning frequency of a controlled generator we mean the center frequency of the operating range of the controlled generator corresponding to the operating range of control voltages.

As the unit 19 of the task can be used any known and described in the literature digital data input device. (See, for example, Shevkoplyas B. V. Microprocessor structures. Engineering solutions. - M.: Radio and communications, 1993, p. 27.)

All base stations 1 contain the same type of transceivers 4, differing only in frequency values, which are tuned to the first band-pass filters 7 and controlled oscillators 15.

A radio 5 located on each movable object 2 shown in FIG. 4, contains a second receiving antenna 20, five channels for receiving radio signals, each of which contains a second bandpass filter 21, a second low-noise amplifier 22, a second amplitude limiter 23, a second frequency detector 24, a second squaring unit 25, a second integrator 26, and a second ADC 27. The radio 5 also contains a second microcontroller 28, indicator 29.

The output of the second receiving antenna 20, designed for non-directional reception of informational radio signals emitted from base stations 1, is connected to the inputs of all second bandpass filters 21, which serve to select informational radio signals by frequency. Each of them is tuned, respectively, to one of the given reception frequencies of this radio 5. The bandwidth of each second band-pass filter 21 is not less than the bandwidth of the information radio signals of the corresponding operating frequency. The passbands of the second bandpass filters 21 are non-overlapping. In each channel for receiving radio signals, the output of the second band-pass filter 21 is connected to the input of the second low-noise amplifier 22, designed to amplify the received information radio signals. The output of the second low-noise amplifier 22 is connected to the input of the second amplitude limiter 23, which serves to eliminate spurious amplitude modulation of signals arising from the propagation of radio waves. The output of the second amplitude limiter 23 is connected to the input of the second frequency detector 24, intended for the implementation of frequency detection

informational radio signals. The output of the second low-noise amplifier 22 is also connected to the input of the second block 25 of the construction in

U o / - / n T39

a square whose output is connected to the input of the second integrator 26. Serially connected to the second squaring unit 25 and the second integrator 26 are used to generate signals proportional to the power of the received radio signals. The output of the second integrator 26 is connected to the input of the second ADC 27. The outputs of all the second frequency detectors 24 and the outputs of all the second ADCs 27 are connected to the corresponding inputs of the second microcontroller 28, designed to process the information received from base stations 1 and display it on the indicator 29, the inputs of which are connected to the outputs of the second microcontroller 28.

As the first amplitude limiters 9 and second amplitude limiters 23, 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.)

On all moving objects 2 are placed the same type of radio receivers 5, and the operating frequencies, which are tuned to the second band-pass filters 21, can coincide on different moving objects 2.

At base stations 1 and at mobile objects 2, respectively, such values of the amplification factors of the first low-noise amplifiers 8 and second low-noise amplifiers 22 are set, at which the sensitivity of the radio signal receiving channels at base stations 1 and at mobile objects 2 is equal to Р nt. At base stations

1 depending on the set values of the operating frequencies fq

information radio signals emitted from these base stations 1, initially set such values of power gains of adjustable power amplifiers 16 (during operation of the system, these values can be changed) at which

the power of the information radio signals emitted from these base stations 1 are respectively Pqwm. Moreover, the values of Pqwxl and

the value is selected based on the set value of the radius of zone 3

the actions of each base station 1, equal to the side length of each of these regular hexagons.

Information and service radio signals are narrowband; 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 information transmitted to moving objects 2, as well as service information; the propagation time of signals in the transceiver paths of base stations 1 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 12, 13, 14, 15, 16 and 17 MHz; the duration of any of the pulses of modulating binary sequences of pulses corresponding to information transmitted to moving objects 2, as well as service information, at least 10 ms, the time interval for a single measurement of the power of the received radio signals is not more than 0.1 ms.

Consider the operation of the system shown in FIG. 2.

At the base station 1, which is the source of the transmitted information, to the task unit 19 of the transceiver 4 shown in FIG. 3, enter information intended for transmission to moving objects 2.

At each base station 1, in addition to the base station 1, which is the source of the transmitted information, the operating frequencies of the information radio signals received at this base station 1 are entered into the transceiver 4 setting unit 19, at which the information radio signals are emitted from this base station 1 at a given working frequency.

The system operates alternately in two modes: the mode "Information transfer to moving objects 2 (main mode) and the mode" Adjusting the radiation power of base stations 1 (service mode).

At each base station 1, the first microcontroller 18 sets the transceiver 4 in the mode of "Information transfer to moving objects 2.

At the base station 1, which is the source of the transmitted information, the first microcontroller 18 reads in binary code from the task unit 19 information intended for transmission to movable objects 2. Then, the first microcontroller 18 generates a resulting binary code containing a binary code corresponding to information transmitted to the mobile objects 2, and a binary code attached to it containing a sign of the end of the information radio signal. The first microcontroller 18 generates a binary sequence of pulses corresponding to the resulting binary code, which is fed to one of the switched inputs of the electronic switch 14. At the same time, the first microcontroller 18 generates control signals on the control inputs of the electronic switch 14, through which the electronic switch 14 connects the specified switched input to the control input controlled generator 15. Controlled generator 15, tuned to a given transmission frequency of this base

Station 1, according to the signals acting at the output of the electronic switch 14, produces a high-frequency frequency-controlled signal that is fed to the input of an adjustable power amplifier 16. The transmitting antenna 17 emits into the space the informational radio signal thus formed, corresponding to the information transmitted to the moving objects 2. The radiated informational radio signal ends

a sequence of radio pulses containing a sign of the end of the information radio signal.

The reception of the information radio signal emitted from the base station 1, which is the source of the transmitted information, is carried out at all neighboring base stations 1 using the transceivers 4 contained in them. In this case, the first receiving antenna 6, which is part of each of these transceivers 4, receives the information radio signal, radiated from the base station 1, which is the source of the transmitted information. The received information radio signal is fed to the inputs of the first band-pass filters 7. At each base station 1, which is adjacent to the base station 1, which is the source of the transmitted information, at the output of one of the first band-pass filters 7, tuned to a given operating frequency of the information radio signals emitted from the base station 1, which is the source of the transmitted information, the corresponding high-frequency frequency-manipulated signal corresponding to the received information radio 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 the output of the first amplitude limiter 9, the signal is fed to the input of the first

      J j

frequency detector 10. The first frequency detector 10 performs frequency detection of the received information radio signal and generates a binary sequence of pulses corresponding to the transmitted information, which are received at the corresponding switched input of the electronic switch 14 and at the input of the first microcontroller 18.

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 18. The first microcontroller 18 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 radio signals, the power value of the received information radio signal Rpr. The first microcontroller 18 checks

conditions Ppr prmin, where KZt 1.2, and in case of its implementation accepts

the decision on the presence at the input of the transceiver 4 of the information radio signal of the corresponding operating frequency, otherwise the first microcontroller 18 makes the opposite decision. (Kzap coefficient 1.2 provides a margin of sensitivity,

necessary for measuring the power of the received information radio signals when the propagation conditions of the radio waves deteriorate and insufficient for receiving radio signals from the remote base stations 1.) Then, the first microcontroller 18 reads from the set unit 19 the set values of the operating frequencies of the information radio signals,

received at this base station 1, at which information radio signals are emitted from this base station 1 at a given operating frequency, and determines, based on these given values of operating frequencies and signal values acting at the outputs of the corresponding first ADCs 13, the operating frequency of the maximum power information radio signal. (At each base station 1, which is adjacent to base station 1, which is the source of transmitted information, the operating frequency of the maximum power information radio signal thus determined is the operating frequency of information radio signals emitted from base station 1, which is the source of transmitted information.) The first microcontroller 18 generates control signals at the control inputs of the electronic switch 14, through which the electronic switch 14 connects the output of the first frequency about the detector 10, corresponding to the operating frequency of the information signal of maximum power, to the control input of the controlled generator 15. The controlled generator 15 generates a high-frequency frequency-manipulated signal at a given working frequency, which is input to an adjustable power amplifier 16. From the output of the adjustable power amplifier 16, a power-amplified signal is fed to the input of a transmitting antenna 17, which emits into the space an informational radio signal corresponding to information transmitted to moving objects 2. The emitted informational radio signal also terminates in a sequence of radio pulses containing a sign of the end of the informational radio signal.

Reception of information radio signals emitted from these neighboring base stations 1, is carried out at all other neighboring base stations 1, which are adjacent to the specified

25

neighboring base stations 1, using the transceivers 4 contained in them. The first receiving antenna 6, which is part of each of these transceivers 4, receives information radio signals emitted from these neighboring base stations 1. Received information radio signals are fed to the inputs of the first bandpass filters 7, which carry out their selection 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-manipulated signals corresponding to the received information 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 the frequency detection of the received information radio signals and generate binary sequences of pulses,

relevant transmitted information that is received at the switched inputs of the electronic switch 14 and the inputs of the first microcontroller 18.

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 18. The first microcontroller 18

determines by digital codes acting on the outputs of the first ADCs

13, and the known gain values of the respective radio signal receiving channels, received power / Jnp values

informational radio signals. For each of the channels for receiving radio signals, the first microcontroller 18 checks

l. PO XOffl, v-1 / -.

terms of the GPR, where Kzap 1.2, and in case of its implementation accepts

the decision on the presence at the input of the transceiver 4 of the information radio signal of the corresponding operating frequency, otherwise the first microcontroller 18 makes the opposite decision. Then, the first microcontroller 18 reads from the set unit 19 the set values of the operating frequencies of the information radio signals received at this base station 1, at which the information radio signals are emitted from this base station 1 at a given operating frequency, and determines from these set values of the operating frequencies and signal values operating at the outputs of the respective first ADCs 13, the operating frequency of the information radio signal of maximum power. The first microcontroller 18 generates control signals at the control inputs of the electronic switch

14, through which the electronic switch 14 connects the output of the first frequency detector 10, corresponding to the operating frequency of the maximum power information signal, to the control input of the controlled generator 15. The controlled generator 15 generates a high-frequency frequency-manipulated signal at a given working frequency, which is input to the adjustable amplifier 16 power. From the output of the adjustable power amplifier 16, the power-amplified signal is fed to the input of the transmitting antenna 17, which emits into the space an information radio signal corresponding to the information

transmitted to moving objects 2. The radiated informational radio signal also ends with a sequence of radio pulses containing a sign of the end of the informational radio signal.

By analogy with the above, 2 transceivers 4, which are part of all other base stations 1, operate in the "Information transfer to mobile objects" mode.

The information radio signals emitted from each base station 1 penetrate through the first receiving antennas 6 to the inputs of the transceivers 4, which are part of the 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 the base station 1, which is the source of the transmitted information, is carried out only when receiving 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, which is the source of the transmitted information, is carried out regardless of the operation of neighboring base stations 1.

With a sufficiently high speed of the described elements and blocks, it can be considered that the transceivers 4, which are part of the base stations 1, simultaneously receive information radio signals emitted from neighboring base stations 1 and emit them at the corresponding given operating frequencies.

At each base station 1, the first microcontroller 18 also reads the signals from the outputs of all the first ADCs 13 and stores the values of the power of the information radio signals received at these base stations 1 in the "Information transfer to mobile objects 2" mode. These base stations 1 include base station 1, which is the source of the transmitted information, since at this

base station 1 is also similar to that described above, receive information radio signals emitted from neighboring base stations 1, and measure their power.

Thus, the transceivers 4 included in the base stations 1, in accordance with the information contained in the blocks 19 of the task, sequentially, in all directions from the base station 1, which is the source of the transmitted information, to the boundaries of the served territory at all other subsequent base stations 1 adjacent to the previous base stations 1, simultaneously receive the information signals radiated from the previous base stations 1 and emit them on the corresponding preset slaves other frequencies.

At each movable object 2 located within the service area, the second receiving antenna 20, which is part of the radio receiver 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 moving object 2 is located. These signals from the output of the second receiving antenna 20 are fed to the inputs of the second bandpass filters 21, which select them in frequency. The signals from the outputs of the second bandpass filters 21 are fed to the inputs of the second low-noise amplifiers 22, the signals from the outputs of which are fed to the inputs of the second amplitude limiters 23. The second amplitude limiters 23 carry out the amplitude limitation of the signals. From the outputs of the second amplitude limiters 23, the signals are fed to the inputs of the second frequency detectors 24, which carry out frequency detection of the received information radio signals. At the same time, the signals from the outputs of the second low-noise amplifiers 22 are fed to the inputs of the second squaring blocks 25, the output signals of which are fed to the inputs of the second

lW / in S3 9

integrators 26, which at the inputs of the second ADCs 27 form, in accordance with formula (2), signals proportional to the power of the received information radio signals. The digital codes from the outputs of the second ADCs 27 are fed to the inputs of the second microcontroller 28. The second microcontroller 28 determines by the digital codes acting on the outputs of the second ADCs 27 and the known values of the gain factors of the respective channels for receiving radio signals, the power values Rp of received information

radio signals. For each of the channels for receiving radio signals, the second microcontroller 28 checks the conditions of the Rpr Rpr hps and

if it is executed, it makes a decision about the presence of an informational radio signal at the input of the radio receiver 5 of the corresponding operating frequency, otherwise the second microcontroller 28 makes the opposite decision. (If the propagation conditions of the radio waves deteriorate, the decrease in the power of the received information radio signals is compensated by an increase in the power of the information radio signals emitted from the base stations 1, which is carried out in the "Adjusting the radiation power of the base stations 1." mode. Then, the second microcontroller 28 processes the binary pulse sequences acting on the outputs of the corresponding second frequency detectors 24, and generates signals at the inputs of indicator 29, through which indicator 29 displays information, transmitting movable objects 2.

The mode "Adjusting the radiation power of base stations 1. At the end of the radiation of the next informational radio signal at the base station 1, which is the source of the transmitted information, the first microcontroller 18 sets the transceiver 4 to the mode" Adjusting the radiation power of the base stations 1. In this case, the first microcontroller 18 generates on one of switched inputs

electronic switch 14 binary sequence of pulses containing service information about measured and stored during the previous mode "Information transfer to moving objects 2 power values of the received information radio signals. At the same time, the first microcontroller 18 generates control signals at the control inputs of the electronic switch 14, through which the electronic switch 14 connects the specified switched input to the control input of the controlled generator 15. The thus generated binary binary pulse sequence is fed to the control input of the controlled generator 15, which forms the corresponding high-frequency frequency-controlled a signal supplied to the input of an adjustable power amplifier 16, from the output of which o the power-amplified signal is fed to the input of the transmitting antenna 17. The transmitting antenna 17 emits into the space a service radio signal containing information about the measured power values of the information radio signals received at the base station 1, which is the source of the transmitted information.

At each of the base stations 1, which are adjacent to the base station 1, which is the source of the transmitted information, at the end of the reception of the next informational radio signal, the first microcontroller 18 leads (as a result of identification by the first microcontroller 18 of a sequence of radio pulses containing the termination of the informational radio signal) transceiver 4 in the mode "Adjusting the radiation power of base stations 1. In this case, the first microcontroller 18 forms on the control inputs of the electronic mmutator 14 control signals by which the electronic switch 14 disconnects the outputs of the first frequency detectors 10 from the input

 f) L Y; Y C D H

u-f (/ 4 I

controlled generator 15. To the input of the latter, the electronic switch 14 connects one of the outputs of the first microcontroller 18, which forms a binary sequence of pulses on it, containing service information about the measured and stored during the previous mode “Information transfer to mobile objects 2 power values of received information radio signals. The service binary sequence of pulses thus formed is fed to the control input of the controlled oscillator 15, which forms the corresponding high-frequency frequency-manipulated signal supplied to the input of the adjustable power amplifier 16, from the output of which a power-amplified signal is supplied to the input of the transmitting antenna 17. Transmitting antenna 17 of each of the basic stations 1, which are adjacent to the base station 1, which is the source of the transmitted information, radiates into space service radio signal containing information about the measured values of the power of the information radio signals received at each of these neighboring base stations 1.

At the same time, at each of these neighboring base stations 1, the first receiving antenna 6 receives service radio signals emitted from base stations 1 that are adjacent to the indicated neighboring base stations 1. Received service radio signals are fed to the inputs of the first bandpass filters 7, which select them by frequency. The signals from the outputs of the first band-pass filters 7 are fed to the inputs of the first low-noise amplifiers 8. From the outputs of the first low-noise amplifiers 8, the signals are fed to the inputs of the first amplitude limiters 9, which realize 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

Zc-oaoiM

32

frequency detectors 10, which carry out frequency detection of received service radio signals and generate binary pulse sequences containing information about the measured power values of the information radio signals received at base stations 1, which are adjacent to the indicated neighboring base stations 1 (among base stations 1, which are adjacent in relation to the indicated neighboring base stations 1, there is also a base station 1, which is a source of transmitted information). These binary sequences of pulses are fed to the inputs of the first microcontroller 18. Similarly to the above, the first microcontroller 18 makes a decision about the presence or absence at the input of the transceiver 4 of the service radio signals of the corresponding operating frequencies by comparing the values of their power with a threshold P

Nr.MIN ,, 1 g TT

value -, where Kmp 1.2. On each of these neighboring

of base stations 1, the first microcontroller 18 compares with each other the measured power values of the information radio signals received at base stations 1, which are adjacent to the indicated neighboring base station 1, and emitted from this base station 1 (from base station 1, which contains the transceiver 4, the composition of which includes the specified first microcontroller 18), and determines among them the minimum value of the power Рт мш. (Registration of informational radio signals

occurs when the condition rh is fulfilled, where K 5ap 1.2,

therefore, the value of RTm pr min and is nonzero.) Then

No. (ul $ 2)

l, 33

g GGO.MIN, g1 L

Gf - 5311

west rp

the required value of the power of the radiated information

of radio signals and generates a control signal at the control input of the adjustable power amplifier 16, in accordance with which the power of the radiated information radio signals takes on a value.

By analogy with the above, the transceivers 4 included in the base stations 1 that are not adjacent to the base station 1, which is the source of the transmitted information, operate in the mode "Adjusting the radiation power of base stations 1".

By analogy with the “Information transfer to mobile objects 2” mode described above, in the “Adjusting the radiation power of base stations 1” mode, radios 5 located on mobile objects 2 receive radio service signals emitted from base stations 1 in the zones 3 of which they are located. In this case, in each radio 5, the second microcontroller 28, based on the analysis of the received service radio signals, blocks the display of service information on the indicator 29.

The “Adjustment of radiation power of base stations 1” mode has a fixed duration that is the same at all base stations 1. At each base station 1, at the end of the mode "Adjusting the radiation power of base stations 1, the first microcontroller 18, when transmitting other informational radio signals to mobile objects 2, returns transceiver 4 to the mode" Information transfer to mobile objects 2.

Thus, the described technical solution allows, in contrast to the prototype, to transmit information to moving objects 2 located within the service area, without using a switching center and fiber-optic communication lines connecting the center

switching with base stations 1, which greatly simplifies the system. In addition, this technical solution allows to reduce, compared with the prototype, the number of preset reception frequencies of each of the radios 6 located on the moving objects 2, from seven to five, which also simplifies the system. Along with this, due to the rational placement of base stations 1 on the served territory, the system can significantly improve the quality of information reception on mobile objects 2 when changing the radii of zones 3 of the action of base stations 1, due to changes in the propagation conditions of radio waves.

35

ANNEX 1

to the application for a utility model

“MOBILE INFORMATION TRANSMISSION SYSTEM

Authors: Uretsky Ya.S., Kupershmidt P.V. et al. FIRST MICROCONTROLLER 18 OPERATION ALGORITHM

OBJECTS

6a

The formation of the resulting binary code containing a binary code corresponding to the information transmitted to the movable objects 2, and a binary code attached to it containing the termination sign of the information radio signal

The formation on one of the switched inputs of the electronic switch 14 of the binary sequence of pulses corresponding to the resulting binary code

The formation at the control inputs of the electronic switch 14 of the control signals for connecting the specified switched input of the electronic switch 14 to the control input of a controlled generator 15

Reading from the outputs of all first ADCs 13 digital codes corresponding to the power values of the information radio signals received at this base station 1

16

vs

2 /

Storing digital codes corresponding to the power values of the information radio signals received at this base station 1

Mode "Adjusting the radiation power of base stations 1

The formation of control signals at the control inputs of the electronic switch 14 to disable the outputs of the first frequency detectors 10 from the input of the controlled generator 15

Formation of a binary sequence of pulses at one of the switched inputs of the electronic switch 14 containing service information on the measured and stored during the previous mode “Information transfer to mobile objects 2 power values of received information radio signals

3 /

The formation at the control inputs of the electronic switch 14 of the control signals for connecting the specified switched input of the electronic switch 14 to the control input of a controlled generator 15

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

 min min

TO.

Hall

Reading from the outputs of the first frequency detectors 10 binary sequences of pulses containing information about the measured values of the power of information radio signals received at neighboring base stations 1

Determining the minimum power value

from the measured power values

change min

radio signals received at neighboring base stations 1 and emitted from this base station 1

Determination of the required power value Pqim of the radiated information radio signals

R P

q over q over

rev. min min

46

min min

min min

at P

rev. min min

, 0 ,,

x

4a

la

The formation of the signal at the control input of the adjustable power amplifier 16, in accordance with which the power of the radiated information radio signals takes the value Pq

6a

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 information radio signal P and comparing this power value with the value

 min min

TO.

app

66 /

Reading from the block 19 of the task of the set 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

The definition of these specified values of the operating frequencies and the values of the signals acting on the outputs of the corresponding first ADCs 13, the operating frequency of the information radio signal of maximum power

76 /

The formation of control signals at the control inputs of the electronic switch 14 for connecting the output of the first frequency detector 10, corresponding to the operating frequency of the information radio signal of maximum power, to the control input of the controlled generator 15

Reading from the outputs of all first ADCs 13 digital codes corresponding to the power values of the information radio signals received at this base station 1

Storing digital codes corresponding to the power values of the information radio signals received at this base station 1

Identification of the sign of the end of the information radio signal

tyouj ЈЈо9

76

APPENDIX 2

to the application for a utility model

“MOBILE INFORMATION TRANSMISSION SYSTEM

Authors: Uretsky Ya.S., Kupershmidt P.V. SECOND MICROCONTROLLER 28 ALGORITHM

Determination for each of the channels for receiving informational radio signals by the digital code acting on the outputs of the second ADC 27 and the known value of the gain of the corresponding channel for receiving informational radio signals, the power value P of the received informational radio signals and comparing this power value with the quantity PT

OBJECTS

Start

min min

la

Reading from the outputs of the second frequency detectors 24 binary sequences of pulses

The formation at the inputs of the indicator 29 signals corresponding to the transmitted information

16

Claims (1)

A system for transmitting information to moving objects, containing transceivers, one each of the base stations located in arbitrary cells, which are equal regular hexagons, densely spaced among themselves, densely covering the served territory, with the transmission frequency set at each base station base station, which is one of the given different frequencies, the radii of the zones of action of these base stations are set equal to the side length of each regular hexagon, radio receivers placed one at a time on each of the moving objects located within the coverage areas of all base stations, with given reception frequencies of each radio receiver, characterized in that the base stations are located at the vertices of the indicated regular hexagons, the number of specified different frequencies, of which on each base the station is assigned one transmission frequency of this base station, equal to six, the given transmission frequency of each base station located at the top of the regular hexagons is different from the given hours the transmission frequency of neighboring base stations located at the neighboring vertices of these regular hexagons, the preset receive frequencies of each radio receiver are five different of these six preset frequencies, the transceiver included in each base station contains a first receive antenna, three channels for receiving radio signals, each of which contains a first bandpass filter, a first low-noise amplifier, a first amplitude limiter, a first frequency detector, a first squaring unit, a first integrator, The first analog-to-digital converter, the transceiver also contains an electronic switch, a controlled generator, an adjustable power amplifier, a transmitting antenna, a first microcontroller, a reference unit, and the output of the first receiving antenna is connected to the inputs of all the first bandpass filters, each of which is tuned to a given transmission frequency of one from the respective neighboring base stations, in each channel for receiving radio signals, the output of the first bandpass filter is connected to the input of the first low-noise amplifier, the output of which connected to the input of the first amplitude 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 outputs of all the first analog-to-digital converters are connected to the corresponding inputs of the first microcontroller, the outputs of all the first frequency detectors are connected to the corresponding com to the switchable inputs of the electronic switch, the outputs of the first microcontroller are connected to the control input of the adjustable power amplifier, to one of the switched inputs and to the control inputs of the electronic switch, the output of which is connected to the control input of the controlled generator tuned to the given transmission frequency of this base station, the output of the controlled generator is connected with the input of an adjustable power amplifier, to the output of which a transmitting antenna is connected, the unit is set to the inputs of the first microcontroller i, the radio receiver contains a second receiving antenna, five channels for receiving radio signals, each of which contains a second bandpass filter, a second 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 radio receiver contains also a second microcontroller, an indicator, and the output of the second receiving antenna is connected to the inputs of all the second bandpass filters, each of which is tuned to one of the specified frequencies the receiving frequency of this radio receiver, in each channel for receiving radio signals, the output of the second bandpass filter is connected to the input of the second 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 second low-noise amplifier is also connected to the input of the second erection block squared, the output of which is connected to the input of the second integrator, the output of which is connected to the input of the second analog-to-digital converter, the outputs of all second frequencies detectors and the outputs of all the second analog-to-digital converters are connected to the corresponding inputs of the second microcontroller, the outputs of which are connected to the indicator inputs.