RU19594U1 - 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 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 the base station, which is one of the given different frequencies, the radii of the coverage areas of the base stations are set equal to the side lengths of each regular hexagons a, the second transceivers placed one at a time on each of the moving objects 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 the second transceivers are equal to each other and are different from any of these specified frequencies, at each of these base stations is also set the reception frequency of this base station, coinciding with a given transmission frequency of each second transceiver, characterized in that the base stations are located at the vertices of the indicated regular hexagons, the number of different frequencies set, of which one base station has one 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 given transmission frequencies of neighboring base stations located at the neighboring vertices of these regular hexagons, given the reception frequencies of every second when

Description

SYSTEM OF DETERMINING THE LOCATION OF A MOBILE OBJECT

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, 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 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, located within the coverage areas of all base stations, with the specified transmission frequencies and reception frequencies of each second transceiver, and the given reception frequencies of the base stations coincide with the specified 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 frequencies base station transmission frequency, switching center, fiber-optic communication lines connecting the switching center to 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 fairly broadly served area. 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 in l / 3 times the radii of their zones of action. In this regard, the coverage areas of neighboring base stations overlap in the area of their borders, which significantly reduces the accuracy of determining the location of moving objects located in the central parts of the coverage areas of base stations.

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

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 arbitrary cells, which are equal regular hexagons, densely spaced among themselves, densely covering the served territory, with a given on each base stations with the transmission frequency of this base station, which is one of the given different frequencies, the radii of the coverage areas of the base stations are set equal to the side length of each of the correct sixth golnik, 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 between themselves and are different from any of these specified frequencies, the reception frequency of this base station, which coincides with the given hour, is also set at each of these base stations the transmission rate of each second transceiver, is achieved by the fact that the base stations are located at the vertices of the indicated regular hexagons, the number of different frequencies set, of which one base frequency of this base station is set at each base station, is six, the specified transmission frequency of each base station located in the top of the regular hexagons is different from the given transmission frequencies of neighboring base stations located at the neighboring vertices of these regular hexagons, given the frequencies and receiving every second transceiver are five different of these six preset frequencies, the first transceiver included in each base station contains a first receiving antenna, three channels for receiving information and service radio signals, each of which

contains a first band-pass filter, a first may-noise amplifier, a first amplitude limiter, a first frequency detector, a first squaring unit, a first integrator, an analog-to-digital converter, a first transceiver also contains one channel for receiving callsign radio signals, which contains a second band-pass filter, a second low-noise amplifier , second amplitude limiter, second frequency detector, second squaring unit, second integrator, second analog-to-digital converter, first transceiver the sensor also contains a first controlled generator, an adjustable 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-power amplifier, the output of which is connected 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 to the input of the first analog-to-digital converter, the output the first receiving antenna is also connected to the input of the second band-pass filter tuned to the given) ao the transmission frequency of the second transceivers, in the reception channel of the callsign radio signals, the WTO output A low-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 first frequency detectors, the outputs of all the first analog-to-digital converters, the output of the second frequency detector and the output of the second analog-digital the converter is connected to the corresponding inputs of the first microcontroller, the outputs of which are to the control input of the adjustable power amplifier, as well as to the control input of the first controlled an oscillator tuned to a given transmission frequency of this base station, the output of the first controlled generator is connected to the input of an adjustable power amplifier, the output of which is connected to the first transmitting antenna, the outputs of the first task unit are connected to the inputs of the first microcontroller, the inputs of the first indicator are connected to the outputs of the first microcontroller, the second the transceiver located on each movable object contains a second receiver) U) antenna, five channels of information radio signals, each of which contains a third bandpass filter, a third low-noise amplifier, a third amplitude limiter, a third frequency detector, a third squaring unit, a third integrator, a third analog-to-digital converter, a second transceiver also contains a second controlled generator, a power amplifier, a second transmitting antenna, a second microcontroller, the second indicator, the 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 configured respectively to one and 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 third 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 third 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-digit a new 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 to the control input of the POWER amplifier, the output of the second controlled generator is connected to the input of the power amplifier, to the output of the cat The 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 neighboring in relation to a given base station, we mean base stations located at the closest distance from this base station. In FIG. Figure 1 shows conditionally the 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.

in which the number of base stations is fifty-four, 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 that are one each of the base stations is twelve, 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 1,2, ..., N are positive integers; 2 „, - moving object

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

3 actions of the base station 1 „; / is the working frequency of the radio signals emitted from base station 1, where q, 2, ..., Q are positive integers; / is the working frequency of the call signs of the radio signals 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 a 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 1 - 154), radii of zones 3

whose actions 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 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.

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, radio signals of power at the operating frequency / power of these

radio signals during their non-directional reception at other base stations 1 and at mobile objects 2, not less than a certain threshold value -Rpmin 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 /, and also with non-directional

 from a positioned movable object 2 radio signals of power P lzl at the operating frequency / „the power of these radio signals with undirected reception at this base station 1 is not less than the same value of P„ p.

In this regard, taking the assumption that the propagation of radio waves occurs in free space, and the served territory is a plane, zone 3 of each base station

1 for non-directional radiation from base stations 1 and from a positioned mobile object 2 and for non-directional reception of radio signals at base stations 1 and mobile objects 2 is a circle centered at the location of this base station 1 and the radius determined by the formula (see, for example, Theoretical Foundations of Radar, Edited by V.E. Dulevich, Moscow: Sovetskoe Radio, 1978, p. 422)

Rg R

p - I diesel. ex / 14

4, .MHH

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 at the vertices 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 the points of placement of neighboring base stations 1. Pa. FIG. 1 boundaries of zones 3 of the operation of base stations 1 are shown conditionally by circles.

In the present description, by the term "signal power, we mean the average signal power P signal s (t}, determined in the time interval t t tf, by the formula (see, for example, A.M. Trakhtman. Introduction to

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

P. (2)

,

the type of radio signals emitted from base stations 1 is not specified, they can be both information and service radio signals.

Six different operating frequencies (O 6) of the radio signals are set,

emitted from all base stations 1. Of the six 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, they are not; adjacent to them, the repeating operating frequencies of the radio signals emitted from of these base stations 1.

By the term "operating frequency" we mean the value of the carrier frequency: its oscillations, 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. At all base stations 1, which are adjacent to the indicated base station 1, 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, 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 action zone 3 of which there is a positioned movable object 2, to the borders of the served territory at all other subsequent base stations 1 that 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, in a similar manner, information radio signals are transmitted alternately from all other base stations 1, in the action zones 3 of which a positioned moving object 2 is located, to mobile objects 2 located within the service area.

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 boundaries of the served territory, and, therefore,

 fogosf to all other base stations 1, without “looping out of the six preset operating frequencies at each base station 1, the operating frequencies of the information radio signals received at this base station 1 are set, for which from this base station 1 radiation of information radio signals at a given operating frequency is realized. At the same time, at each base station 1, these operating frequencies are set for any other base station 1, in the action zone 3 of which there can be a positionable movable object 2, depending on the relative position of these base stations 1 and the values of the specified operating frequencies of information radio signals emitted from the base stations 1, which are adjacent to the first base station 1. Then, in the same way, they alternately transmit information radio signals from all other base stations 1, in zones 3 the effect of which the positioned movable object 2 is located, on the movable objects 2 located within the boundaries of the served territory. With the indicated placement parameters for the base stations 1 on the serviced territory with the specified radius of the action zones 3, at least two action zones 3 of the neighboring base stations 1 overlap at each point of the serviced territory. Since the radiation of informational radio signals from neighboring base stations 1 is carried out at different operating frequencies, each the receiving point receives informational radio signals of at least DZOs of various given operating frequencies. Therefore, to ensure guaranteed reception of informational radio signals on moving objects 2 when they move within the service area, receiving informational radio signals on each moving object 2

it is enough to carry out only on the nat different of the six given operating frequencies.

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

At each of the base stations 1 and on mobile objects 2 located within the service area, additional coordinates (. G ,,, - „) are set for the location of all base stations 1, and

also the corresponding assigned identification numbers n and the radii R of the zones 3 of 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 that the action zones 3 of each base station 1 are a circle of radius R coordinates (d :,)

positioned movable object 2 is determined from the solution of the system of inequalities h (.-. J ((.-. b (yv Ny «2 / V - 2 (x-xJ + (w / W ((where (x„, y „(x „, Y„ ..., (x „, y„ ..., (x „, - location coordinates of base stations 1 with identification numbers n., P2, ..., n, ..., n, in zones 3 actions of which the positioned movable object 2 is located, where K is the number of these base stations 1; moreover,., K, K are positive integers,, 2, ..., N,, 2, ..., Н., П l. , 2, ..., N,, 2, ..., A. The solution to system (3) is the set of coordinate values (x, y} of the points forming the area of the served territory, limited to fragments the boundaries of the overlapping zones 3 of the activity of neighboring base stations 1, in which the positioned movable object 2 is located. For the given radii of zones 3 of the action of base stations 1 and the parameters for placing base stations 1 on the served territory, the area of the region defined by formula (3) is no more than one third the area of the action zone 3 of each base station 1, which significantly increases, compared with the prototype, the accuracy of determining the location of positioned movable objects 2 located on the central zastka of zones 3 action Base stations 1. To ensure the system’s operability, the placement of base stations 1 near the boundaries of the served territory is necessary so that at each point of the served territory there is overlapping of at least two zones 3 of the neighboring base stations 1. So, for example, the border of the served territory.

/ fo 1

15 shown in FIG. 1, it can be a closed polygonal line passing through all the extreme base stations 1 (base stations li, b, b, u, b, b, lib lie, b 127, b3, 1b8, Us, 147, b 154, bb, b3, 149, 152, Us, 144, 1s9, 1s4, b3, 122, Il7, Il2, U, U) When transmitting information to moving objects 2 in the conditions of propagation of radio waves in free space to provide a given value of radius R of zone 3 of action of each base station 1, for known values of the operating frequency / and sensitivity of the min. Channels for receiving radio signals, it is necessary in accordance with formula (1) to provide the required power nosti. radiated 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 decay in the atmosphere, the radii of the action zones 3 of the base stations 1 decrease, which leads to a decrease in the quality of information reception at moving objects 2, and, consequently, reduce the likelihood of system health. (The term “the probability of operability is generally accepted - see, for example, Solovyov Yu.A. Satellite navigation systems. - M .: Ekotrendz, 2000, p. 10.) Therefore, to ensure the required probability of operability of the system at each base station 1, it is necessary to adjust power of radiated information radio signals. For each base station 1, the power of the 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. Pa each of these neighboring base stations 1 receive the specified service radio signals and adjust the power of the emitted information radio signals by V

2oo / fo OSf

16 measured values of the power of informational radio signals received at base stations 1, which are adjacent in relation to the specified neighboring base station 1, and emitted from this base station 1. The power of the generated informational radio signals at each of these neighboring base stations 1 is adjusted, for example, by the minimum value of power from the measured values of the power of information radio signals received at base stations 1, which are adjacent in relation to the specified neighboring base station 1, and radiated from this base station 1, using the formula p, p RPR. MIN V rev. pr. minzal where RIZM.PR.MIN is the minimum value of power from the corresponding measured power values of information radio signals; the value of the power of the emitted information radio signals, which is set at the base station 1 in the process of adjustment according to the measurement results; To 1 - coefficient determining the margin of sensitivity and the range of adjustment of the power of the radiated information radio signals. Formula (4) shows that at each base station 1, in the process of adjusting the power of the emitted information radio signals, it is necessary to set the value of the power Rdkzl at which the equality of the measured approx. Min Rpr.min is fulfilled. .min g, -Mlp.MHH

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 as an example, a system is shown containing twelve 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 which is a base station 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 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 correct schistizolnik. At each point of the served territory, at least two zones 3 of action of neighboring base stations 1 overlap.

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 frequency of reception of the second transceiver 5 is the corresponding operating frequency of information radio signals received at the corresponding moving object 2. The receiving frequency of the base station 1 is the corresponding operating frequency pos overt radio signals emitted from the positioned moving object 2.

2oo / fo c /

18 The terms “transmission frequency and” reception frequency of a device are generally accepted. (See, for example, Gromakov Yu.A. Standards and mobile radio communication systems. - M .: Eco-Trends, 2000, p.22.) Of the six different operating frequencies set at each base station 1, the transmission frequency of this base station 1 is set different from the specified transmission frequencies of neighboring base stations 1. Of the six specified operating frequencies on each mobile object 2, one transmission frequency and five different reception frequencies of the second transceiver 5, located on this mobile object 2, are specified. Also, the given transmission frequencies of all the second transceiver 5 are equal to each other and are different from any of the six preset operating frequencies. At each base station 1, a reception frequency of this base station 1 is also set, which coincides with a given transmission frequency of each second transceiver 5. All elements and blocks included in the system are known and described in the literature. The first transceiver 4 located at each base station 1 shown in FIG. 3, contains a first receiving antenna 6, three channels for receiving information and service 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 unit 11, a first integrator 12 , analog-to-digital converter (ATsI) 13. The servo transceiver 4 also contains one channel for receiving callsign radio signals, which contains a second band-pass filter 14, a second low-noise amplifier 15, a second amplitude limiter 16, and a second th frequency detector 17, a second unit 18 of the squaring, the second integrator 19, 20. The second ACI Hierve transceiver 4

19 also contains a first controlled generator 21, an adjustable 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. At the same time, each of them is tuned to the 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, the output of the first band-pass filter 7 is connected to the input of the first low-noise amplifier 8, intended 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 information and service radio signals. The output of the first low-noise amplifier 8 is connected

also to the input of the first squaring unit 11, the output of which is connected to the input of the first integrator 12. Serially connected the first squaring unit 11 and the first integrator 12 are used 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 the second low-noise amplifier 15, designed to amplify the received callsign radio signals. The output of the second low-noise amplifier 15 is connected to the input of the second amplitude limiter 16, designed to eliminate spurious amplitude modulation of 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 implement the frequency detection of the received callsign radio signals. The input of the second 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 are connected in series 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

20

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, generate binary pulse sequences corresponding to the identification numbers of base stations 1, in zones 3 of the action of which the positioned movable object 2 is located, to determine the location of the positioned movable object 2, to form a mode iruyuschih binary pulse sequences corresponding to the service information transmitted in the neighbor base station 1 as well as to adjust the power gain of the adjustable amplifier 22 output. The outputs of the first microcontroller 24 are connected to the control input of the adjustable power amplifier 22, as well as to the control input of the first controlled generator 21, tuned to a given transmission frequency of this base station 1. The first controlled generator 21 is used to generate high-frequency frequency-manipulated signals,

relevant transmitted information. The output of the first controlled generator 21 is connected to the input of an adjustable 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 inputs of the first microcontroller 24 are connected to the outputs of the first task unit 26, 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 zones 3 of the action of all base stations 1, and to set at each base station 1 for any other base stations 1, in zones 3 of which there may be

2 memory / aGB7L /

21 positioned movable object 2, the values of the operating frequencies of the information radio signals received at this base station 1, at which radiation from the information radio signals at a given operating frequency is realized from this base station 1. 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 first transceivers 4 of the same type, differing only in frequency values, for which the first bandpass filters 7 and the first controlled oscillators 21 are tuned. The 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 third low-noise amplifier 29, a third amplitude limit 11b 30, a third frequency detector 31, a third squaring unit 32, a third integrator 33 , the third ADC 34. The second transceiver 5 also contains a second controlled generator 35, a power amplifier 36, a second transmitting antenna 37, a second microcontroller 38, a second indicator 39, and a second reference 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 band-pass 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 third low-noise amplifier 29, intended to amplify the received informational radio signals. The output of the third 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, designed for frequency detection of the received information radio signals. The output of the third 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 ADCs 34 are 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 frequency transmitting the second transceivers 5, the other output of the second microcontroller 38 is connected to the control input of the power amplifier 36. The output of the second controlled generator 35 is connected to the input of the power amplifier 36, which serves to amplify the signals by power. The output of the power amplifier 36 is connected to a second transmitting antenna 37, designed for non-directional radiation into the space of the call sign of the radio signals. Second

the microcontroller 38 is designed to generate binary sequences of pulses corresponding to the operating frequency codes of the emitted information radio signals, to determine the location of the positioned moving object 2 and display this information on the second indicator 39, the inputs of which are connected to the outputs of the second microcontroller 38. The outputs of the second are connected to the inputs of the second microcontroller 38 block 40 tasks, which serves to set on each moving object 2 coordinates of the placement of all base stations 1, with tvetstvuyuschih them given identification numbers 3 and radii of the zones of action 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, formulated by a 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 first amplitude limiters 9, second amplitude limiters 16 and third MorjT amplitude limiters 30, for example, non-linear resonant amplifiers tuned to the corresponding operating frequencies can be used. (See, for example.

Gonorovsky I.S. Radio circuits and signals. - M .: Radio and communications, 1986, p. 235.)

All the moving objects 2 have the same type of 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 on mobile objects 2, respectively, such values of gain factors of the first low-noise amplifiers 8, second low-noise amplifiers 15 and third low-noise amplifiers 29 are set, at which the sensitivity of the reception channels of information and service radio signals at base stations 1 and on mobile objects 2, and also the sensitivity of the reception channels of the callsign radio signals at the base stations 1 is equal to R Щ. On the

base stations 1 (depending on the set values of the operating frequencies / radio signals emitted from these base stations 1) and on

positioned movable object 2 (depending on the set value of the operating frequency / „call signs of the radio signals emitted from

positioned movable object 2) respectively, such values of power gains of adjustable power amplifiers 22 are set (values of power gains of adjustable power amplifiers 22 are set initially and during the operation of the system can be changed) and power amplifiers 36, at which respectively the power values of the radiated information and service radio signals equal value

the power of the emitted callsigns of radio signals is equal to

the radius of the zone 3 of action of each base station 1, equal to the side length of each of these regular hexagons.

 y Information, service and call signs 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 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 12, 13, 14, 15, 16 and 17 MHz, respectively; 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. Consider the operation of the system shown in FIG. 2. At each base station 1, the identification number of this base station 1, as well as the coordinates of the location of all base stations 1 and the corresponding identification numbers and radiuses of the 3 zones of action of all base stations 1, are entered into the first job block 26. At each base station 1, the first job block 26 is also entered for any other base stations 1, in the action zones 3 of which a positioned movable object 2 can be located, the values of the operating frequencies of the information radio signals received at this 20o / fof (S) f

base station 1, in which from this base station 1 carry out the extraction 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, as well as the corresponding identification numbers and radiuses of zones 3 of all base stations 1, are entered into the second task block 40 of the task. In the system, the callsign radio signals are transmitted 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 power amplifier 36, according to which the coefficient ent gain of the power amplifier 36 receives the power set value. On each of the movable objects 2 that are not positioned, the second microcontroller 38 generates a control signal at the control input of the power amplifier 36, by which the power amplifier 36 goes into off state (power gain is zero), and radio signals from this moving object 2 are impossible . When determining the location of a moving object 2, the system operates alternately in two-stage modes: the mode "Transmission of information radio signals 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 24 sets the first transceiver 4 to the mode "Transmission of information radio signals to moving objects 2. At the positioned moving object 2, the second microcontroller 38 forms at the control input a second controlled generator 35

1 (a binary pulse sequence corresponding to the code of the first of six specified operating frequencies. The duration of the indicated binary pulse sequence is fixed. The second controlled generator 35 generates a high-frequency frequency-controlled signal corresponding to the specified code. This signal is input to the power amplifier 36, the output signal of which is supplied to the input of the second transmitting antenna 37. The second transmitting antenna 37 emits a call sign to the space, representing a high-frequency Totally frequency-manipulated radio signal containing the code of the first of a set of preset operating frequencies. At each of the base stations 1, in the action zones 3 of which there is a positioned movable object 2, they receive a callsign of a radio signal emitted from a positioned movable object 2. In this case, the first receiving antenna 6, which is part of each of the first transceivers 4 contained in these base stations 1, receives a callsign radio signal containing the code of the first of the six specified operating frequencies. The received callsign radio signal is fed to the input of the second band-pass filter 14. The output signal of the second band-pass filter 14 tuned to the operating frequency of the callsign radio signals emitted from the positioned movable object 2 is acted upon by the high-frequency manipulated signal corresponding to the received callsign radio signal. This signal is fed to the input of the second 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 performs frequency detection of the received radio call sign and generates a binary x

a sequence of pulses corresponding to the code of the first of six 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 second 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. The first microcontroller 24 checks the condition P Rpr.min and, if it is satisfied, makes a decision on the presence of the callsign radio signal of the corresponding operating frequency at the input of the first transceiver 4, otherwise the first microcontroller 24 takes the opposite decision. Then, the first microcontroller 24 reads from the first set unit 26 the set value of the operating frequency of the information radio signals from this base station 1, and the set identification number of this base station 1. If the set operating frequency of the information radio signals emitted from this base station 1, and the first of the six preset operating frequencies, the code of which is contained in the call sign of the radio signal, match, the first microcontroller 24 forms a binary sequence at the control input of the first controlled generator 21 The number of pulses corresponding to the given identification number of this base station is 1. (Otherwise, the first microcontroller 24 awaits the arrival of the following callsign radio signals.) The first controlled oscillator 21, tuned to the first of six preset operating frequencies, generates a high-frequency frequency-manipulated signal that is input Adjustable power amplifier 22. From the output of the adjustable 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 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 six 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 there is a positionable movable object 2, since the preset operating frequency of the information radio signals, radiated 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, simultaneously there is no alternating radiation from base stations 1, in the zones of action 3 of which a 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 in them. The first receiving antenna 6, which is part of each of these first transceivers 4, takes

radio information signal emitted from the first of the base stations

1, in zones 3 of the action of which the positioned movable object 2 is located. 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 first of the base stations 1, in zone 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 of the information radio signals emitted from the first of the base stations 1, in the action zones 3 of which there is a positioned movable object 2, a high-frequency frequency-manipulated signal corresponding to the received information radio signal acts. This signal is fed to the input of the first low-gain 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 frequency detector 10. The first frequency detector 10 carries out the frequency detection of the received information radio signal and generates 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 moving object 2. This binary sequence of pulses is fed to the input of the first microcontroller 24, which determines the identification n of first base station 1, 3 in the zones of action which is positioned a movable object 2.

At the same time, the signal from the output of the 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 forms at the input of the first ADC 13 in accordance with the formula

(2) a signal proportional to the power of the received information radio signal. 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 . First

 - .min

microcontroller 24 checks the condition --- where

jajj 1 -2, And In the case of its implementation makes a decision 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 takes the opposite decision. (The coefficient K 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 24 stores the measured value of the power of the received information radio signal and reads from the first block 26 of the job set on this base station 1 for identification the numbers of the first of the base stations 1, in the zones 3 of which the positioned movable object 2 is located, the values of the working parts t information radio signals izlz aemyh with the base station 1 at which this base station 1 is carried out radiation of radio information at a given operating frequency. (At each base station 1, which is adjacent to the first of the base stations 1, in zones 3 of which there is a positioned movable object 2, the only one

a) (

of the specified operating frequencies is the operating frequency of the information radio signals emitted from the first of the base stations 1, in the action zones 3 of which a positioned moving object 2 is located.) If the operating frequency of the received information radio signal coincides with one of the specified specified operating frequencies, then the first microcontroller 24 generates at the control input of the first controlled generator 21, a binary pulse sequence corresponding to the identification number of the first of the base stations 1, in zones 3 de the action of which the positioned movable object 2 is located. The first controlled generator 21 generates a high-frequency frequency-manipulated signal at a given operating frequency, which is transmitted to the input of an adjustable power amplifier 22. From the output of the adjustable amplifier 22, the power-amplified signal is transmitted 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.

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 these neighboring base stations 1, using the first transceivers contained in them 4. The first receiving antenna 6, which is part of each of these first transceivers 4, receives information radio signals emitted from these neighbors of base stations 1. Received information radio signals are fed to the inputs

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 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 a positioned movable object 2 These binary sequences of pulses are fed to the inputs of the first microcontroller 24, which determines from them the identifiers the ion number of the first of the base stations 1, in the zones 3 of which the positioned movable object 2 is located.

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 units 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). The digital codes from the outputs of the first ADCs 13 are sent 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 values of the gains of the corresponding channels for receiving information and service radio signals, the values

POWER RPR received information radio signals. For

of each of the channels for receiving information and service radio signals, the first microcontroller 24 checks the condition P,

I, where Zap 1 -2, And In the case of its implementation, it takes a decision on the presence of an information radio signal of the corresponding operating frequency at the input of the first transceiver 4, 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, in which from this base station 1 carry out the emission of 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 operating frequencies, then the first microcontroller 24 generates at the control input of the first controlled generator 21 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 mobile object 2. The first controlled generator 21 generates a high-frequency frequency-manipulated signal at a given operating frequency, which paet to the input of the adjustable amplifier 22 output. From the output of the adjustable power amplifier 22, a power-amplified signal is fed to the input of the first transmitting antenna 23, which emits an information radio signal containing an identification number into space

the first of the base stations 1, in the zones of action 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, the power of information radio signals measured from neighboring base stations 1 is measured and the measured power values are stored in the first microcontroller 24.

The 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 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 base station 1, the identification number of which is contained in the transmitted information radio signals, is carried out only when receiving at this base station 1 information radio signals of one of the preset this base station 1 operating frequencies. In this case, the radiation of informational radio signals from the base station 1, the identification number of which is contained in the transmitted informational radio signals, is carried out regardless of the operation of neighboring base stations 1.

Thus, the first transceivers 4 included in the base stations 1, in accordance with the information contained in the first blocks 26 of the job, sequentially, in all directions from

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

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,

radiated from base stations 1, in the zones 3 of which there is

this moving object 2. These radio information signals contain the identification number of the first of the base stations 1, in the action zones 3 of which the positioned moving object 2 is located. The signals from the output of the second receiving antenna 27 are fed to the inputs of the third band-pass filters 28, which select them by frequency. The signals from the outputs of the third bandpass filters 28 are fed to the inputs of the third low-gain 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.

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 third low-noise amplifiers 29 are fed to the inputs of the third squaring units 32, the output signals of which are coupled to the inputs of the third integrators 33, which are formed at the inputs of the third ADCs in accordance with with formula (2), signals proportional to the power of the received information radio signals. The 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 gains of the corresponding 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 Рр.шш and, if it is satisfied, makes a decision on the presence of the corresponding operating frequency informational signal at the input of the second transceiver 5, otherwise the second microcontroller 38 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 neighboring base stations 1, which is carried out in the "Adjusting the radiation power of base stations 1." mode. Then, the second microcontroller 38 processes the binary pulse sequences acting on the outputs of the corresponding third frequency detectors 31, and remembers the identification number of the first of the base stations 1, in zones 3 of the action of which there is a positioned movable object 2. Pa of each base station 1, upon completion of the formation of an informational radio signal containing the number of the first of the base stations 1, in zones 3 of which the positioned movable object 2 is located, the first microcontroller 24 sets the first transceiver 4 to the “Adjustment of radiation power” mode 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 a positioned movable object 2 is contained, the first microcontroller 24 forms a binary pulse train containing control information on the measured signals at the control input of the first controlled generator 21 and memorized during the previous mode “Transmission of information radio signals to moving objects 2 power values are accepted x information signals. The first controlled generator 21 generates a high-frequency frequency-manipulated signal at a given operating frequency, which is input to an adjustable power amplifier 22. From the output of the adjustable power amplifier 22, the 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 measured power values of the information radio signals received from neighboring base stations 1.

For each of the neighboring base stations 1, the first receiving antenna 6 receives service radio signals 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. Pa each specified neighboring base station 1 at the output of the first band-pass filters 7 operate corresponding to the received service radio signals high-frequency frequency-manipulated signals. 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 overhead radio signals and generate binary sequences of pulses corresponding to information about the measured values of the power of information radio signals received at base stations 1, which are adjacent to the indicated neighboring base stations 1. These binary sequences of pulses are fed to the inputs of the first micro ontroller 24. Similarly to the above, the first microcontroller 24 makes a decision about the presence or absence at the input of the first transceiver 4 of the service radio signals of the corresponding operating frequencies by comparing PR. MINIV-1 Th the value of their power with a threshold value ---, where .n Tl -2. At each of these neighboring base stations 1, the first microcontroller 24 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, containing the first transceiver 4, which includes the specified first microcontroller 24), and determines among them the minimum power value yum.prmin (Registration of informational radio signals occurs If the condition PP is fulfilled, pr.minGx 1 -t7- Pr.MIN pr -. where, therefore, the value of P „min.pr.min-GG zsh is DIFFERENT from zero.) Then, the first microcontroller 24 is determined using formula (4) the required power value Pqy emitted

according to which the power of the H3jty4aeMbix information radio signals takes the value

By analogy with the “Transmission of informational radio signals to mobile objects 2” mode described above, in the “Adjusting the radiation power of base stations 1” mode, the second transceivers 5 located on mobile objects 2 receive service radio signals emitted from base stations 1, in the zones 3 of which they are located . Moreover, in every second transceiver 5, the second microcontroller 38, based on the analysis of received service radio signals, blocks the display of service information on the second indicator 39.

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 24 sets the first transceiver 4 to the mode" Transmission of information radio signals to moving objects 2.

After the radiation of the call sign of the radio signal containing the code of the first of the six preset operating frequencies, after a certain predetermined time interval, the second microcontroller 38 forms a binary pulse train corresponding to the code of the second of the six preset operating frequencies at a control input of the second Crawlable generator 35. 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 input

41

a power amplifier 36, the output signal of which is supplied to the input of the second transmitting antenna 37. The second transmitting antenna 37 emits a call sign to the space, which is a high-frequency frequency-manipulated radio signal containing the code of the second of six 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 six specified operating frequencies, the code of which is contained in the call sign of the radio signal, coincide, then this base station 1 emits 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 mentioned, this base station 1 cannot be the first of the base stations 1 considered above, in the action zones 3 of which there is a positioned 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 as described above using the first transceivers 4, which are part of all base stations 1, except the last base station 1. Reception of these information radio signals and storing the specified identification number is carried out similarly to that described above using the second when emitter 5 on moving objects 2, located within the boundaries of the served territory.

Sjdoffoeo l

Then, the second transceiver 5, located on the positioned movable object 2, likewise alternately emits call signs radio signals containing, respectively, codes from the third to sixth of the specified 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 indicated, in the range from two to two.

When transmitting informational radio signals from each of the base stations 1, in the zones 3 of which the moving object 2 is located, to the mobile objects 2 located within the service area, the first transceivers 4 included in the “Adjusting the radiation power of base stations 1” function in the same way as described above each base station 1.

We assume that the change in the position of the positioned ruffable movable object 2 that occurs during one radiation cycle of the callsign radio signals is negligible.

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 action zones 3 of which there is a positioned movable object 2, reads from the first block 26 of the job the coordinates of the location and the values of the radii of the zones 3 actions of these

base stations 1 and determines using the formula (3) the location of the positioned movable object 2. Then, the first microcontroller 24 generates signals at the inputs of the first indicator 25 to display information about the location of the positioned movable object 2 on the served territory.

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 to 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 the zones 3 of the action of base stations 1.

ANNEX 1

to the application for a utility model

"MOBILE LOCATION DETERMINATION SYSTEM

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

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

Determination of the received power 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 L

(GB7G /

OBJECT

Start

min min

/from

/ H

10

9a

not

h

Reading from the output of the second frequency detector 17 of a 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

H /

w

For X

2a

The determination for each of the channels for receiving informational 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 informational radio signals of the power value P of the received informational radio signal and comparing this power value. R.

values with

to.

 -5/

min

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 isolation of information radio signals at a given operating frequency

X

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

Mode "Adjusting the power of base stations 1

Formation at the control input of the first controlled generator 21 of a binary sequence of pulses containing service information about the measured and stored during the previous mode “Transmission of information radio signals to moving objects 2 power values of received information radio signals

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 these power values with the value

36

min min

Hall

At the input of the first transceiver 4 there are service radio signals of the corresponding operating frequencies

Determination of the minimum value of power meas. Min from the measured values of the power of informational radio signals received at neighboring base stations 1 and emitted from this base station 1

Determination of the required power value of the emitted information radio signals

min min

R P

q over q over

rev. min min

g (O

not

min min

R meas. min min

app

6a

Behind

The formation and control input of the adjustable power amplifier 22 of the control signal, in accordance with which the power of the radiated information radio signals takes the value,.

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

X

46

86

9a

Positioning of a positioned moving object 2

((-xJs «, (x-x (, -yJ

(x-.J + ((.-. J (

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

96

10

APPENDIX 2

to the application for a utility model

"MOBILE LOCATION DETERMINATION SYSTEM

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

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

The formation at the control input of the second controlled generator 35 of a binary pulse sequence corresponding to the code of the Q specified operating frequencies

OBJECT

Start

la

Formation of a control signal at the control input of the power amplifier 36, but to which the power amplifier 36 does not turn off

Determination for each of the channels for receiving informational radio signals by a 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, the power value P of the received informational radio signal and comparing this power value with the value of min

16

/

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

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

For X

Behind

Reading from the second block 40 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 action of which the positioned movable object 2 is read, from the stored identification numbers "k of these base stations 1

36

4a

  Y

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 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 the base station, which is one of the given different frequencies, the radii of the coverage areas of the base stations are set equal to the side lengths of each regular hexagons a, the second transceivers placed one at a time on each of the moving objects 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 the second transceivers are equal to each other and are different from any of these specified frequencies, at each of these base stations is also set the reception frequency of this base station, coinciding with a given transmission frequency of each second transceiver, characterized in that the base stations are located at the vertices of the indicated regular hexagons, the number of different frequencies set, of which one base station has one 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 given transmission frequencies of neighboring base stations located at the neighboring vertices of these regular hexagons, given the reception frequencies of every second when there are five different of these six preset frequencies, the first transceiver, which is part of each base station, contains the first receiving antenna, three 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 frequency detector, first squaring unit, first integrator, analog-to-digital converter, first transceiver also contains one channel for receiving callsign radio channel, 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 first transceiver also contains a first controlled oscillator, an adjustable 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 is configured The output of the first band-pass 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, at the given transmission frequency of one of the corresponding neighboring base stations, in each channel for receiving information and service radio signals 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 by the input of the first analog-to-digital converter, the output of the first receiving antenna is also connected to the input of the second band-pass filter tuned to the given transmission frequency of the second transceivers, in the channel for receiving callsign 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 a 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 unit square, 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 first frequency detectors, the outputs of all the first analog-to-digital converters, the output of the second frequency detector and the output of the second analog-to-digital converter the corresponding inputs of the first microcontroller, the outputs of which are connected to the control input of the adjustable power amplifier, as well as to the control input of the first controlled generator, three-core at a given transmission frequency of this base station, the output of the first controlled generator is connected to the input of an adjustable power amplifier, the output of which is connected to the first transmitting antenna, the outputs of the first reference unit are connected to the inputs of the first microcontroller, the inputs of the first indicator and the second transceiver are connected to the outputs of the first microcontroller, placed on each movable object, contains a second receiving antenna, five channels of information radio signals, each of which contains a third the third bandpass filter, the third low-noise amplifier, the third amplitude limiter, the 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 power amplifier, a second transmitting antenna, a second microcontroller, and a second an 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 set accordingly to one of the specified hours from the reception of this second transceiver, in each channel for receiving informational radio signals, the output of the third bandpass filter is connected to the input of the third 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 third 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 conversion 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, and the other output of the second microcontroller is connected to the control the input of the power amplifier, the output of the second controlled generator is connected to the input of the power amplifier, the output of which is connected on the second transmitting antenna, 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.