RU2401456C1 - Method of controlling use of special transport for repairing city heating network and system to this end - Google Patents

Abstract

FIELD: physics.

SUBSTANCE: invention can be used for central control of use of emergency motor transport when repairing heating network of a city. According to the invention, the system has a control station (1) and special transport vehicle (5). The control station (1) has a computer (2), a radio receiver (3), an antenna (4) and a radio transmitter (18). The radio receiver (3) has a second power amplifier (24), a phase doubler (25), a phase halver (26), a narrow band-pass filter (27) and a phase detector (28). The radio transmitter (18) has a memory generator (19), a modulation code generator (20), a phase keying device (21) and a first power amplifier (22). The special transport vehicle (5) has a navigation radio signal receiver (6) with an antenna (7), a radio transmitter (8), an antenna (9), a unit (10) for accessing the database of the road network, a unit (11) for storing the database of the road network, a unit (12) for accessing the database of current restrictions on movement of the transport vehicle, a unit (13) for storing the database of current restrictions on movement the transport vehicle, memory (14), a unit (15) for comparing technical characteristics and movement parameters of the transport vehicle with current restrictions, a message generator (16), an impact sensor (17) of the transport vehicle, a duplexer (29), a radio receiver (30), a frequency converter (36), a modulation code generator (37), a comparator unit (38) and a switch (39). The radio transmitter (8) has a phase keying device (40) and a power amplifier (41). The radio receiver (30) has a power amplifier (31), a phase doubler (32), a phase halver (33), a narrow band-pass filter (34) and a phase detector (35).

EFFECT: more reliable data packet transmission from controlled apparatus to the control station due to use of sample or serial polling of all controlled special transport vehicles, two frequencies and phase-keyed composite signals.

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Description

The proposed method and system relates to the field of automated control systems and can be used for centralized monitoring of the operation of emergency special vehicles while eliminating defects in urban heating systems.

Known methods and systems for automated control of vehicle operation (RF patents No. 2.036.431, 2.122.230, 2.124.759, 2.136.047, 2.155.684, 2.157.565, 2.173.885, 2.175.920, 2.177.647, 2.178 .585, 2.193.233, 2.194.308, 2.196.358, 2.217.797, 2.219.584, 2.222.027, 2.225.642, 2.257.616; U.S. Patent Nos. 4,377,811, 5.014.206, 5.287.111, 5.504.482, 5.648.770;

UK patents No. 2.137.449, 2.279.478, 2.279.792; German patents No. 3,828.725, 4.409.865; French patent No. 2.758.403; EP patents No. 0.568.405, 0.669.740; patents WO No. 95 / 13.594, 98 / 11.513 and others).

Of the known methods and systems closest to the proposed are the "Method of monitoring the operation of vehicles and a system for its implementation" (RF patent No. 2.257.616, G 07 C 5/08, 2004), which are selected as the base objects.

The known method includes setting the vehicle (TS) number, entering into the computer storage device information about the type and technical characteristics of the vehicle, generating in it geodesic coordinates of the database of the road network with data on the restrictions on the movement of vehicles operating on its sections, receiving on the vehicle signals from the global satellite radio navigation system, determining the current values of the time, coordinates and speed of the vehicle by accessing the database of the road network, determining based on the coordinates of the road network on which the vehicle is located, the direction of movement and the current position on it. Comparison of information on speed, direction of movement, type and technical characteristics with the information of the database on the restrictions existing in this section of the road network is provided.

In case of discrepancy between the speed, direction of movement, type or technical characteristics of the current restrictions, it is expected to form an information package containing data on time, coordinates, vehicle number and the nature of the discrepancy, convert the information package into a signal for transmission over a radio channel, transmit this signal, receive, process , storage and registration of information at the vehicle operation control point.

A system that implements the known method includes a control point for the operation of vehicles equipped with a radio receiver with an antenna and a computer. At least one vehicle has a receiver of navigation radio signals with an antenna, a message driver, a radio transmitter with an antenna, and a storage device. In addition, the system is equipped with a unit for accessing the database of the road network, a unit for accessing the database of current restrictions on vehicle traffic, a unit for storing a database of current restrictions on vehicle traffic, and a unit for comparing technical characteristics and parameters of vehicle traffic with current restrictions.

However, the known method and system ensures the formation on each controlled medium of a packet of information containing data on the time, coordinates, vehicle number and the nature of the discrepancy between speed, direction of movement, type or technical characteristics of the current restrictions, and its transmission over the air to the vehicle operation control point, those. realize only simplex radio communication between controlled vehicles and a control point. In this case, there may be cases when several special vehicles simultaneously transmit the specified information to the control point, which causes certain technical difficulties in its processing and registration, and also reduces the reliability of the transmission of the information packet generated on the vehicle.

This disadvantage can be eliminated by using the interrogation method of obtaining a packet of information from each controlled vehicle, i.e. when at the control point they selectively or sequentially interrogate all controlled vehicles. In this case, the duplex radio communication method, two frequencies ω ₁ , ω ₂ and complex signals with phase shift keying are used.

An object of the invention is to increase the reliability of the transmission of a packet of information from controlled vehicles to a control point by using selective or sequential polling of all controlled vehicles, two frequencies ω ₁ , ω ₂ and complex signals with phase shift keying.

The problem is solved in that the proposed method of monitoring the operation of vehicles for repairing urban heating systems, including, in accordance with the closest analogue, setting the vehicle number, entering the specified number into the vehicle computer’s storage device, receiving navigation signals from the global radio navigation satellite on the vehicle systems, determination based on the received navigation signals of the current knowledge of time, coordinates and speed of the transport medium data, the formation of an information package containing data on the current values of the time, coordinates and vehicle number, at the same time, information on the type and technical characteristics of the vehicle is preliminarily entered into the vehicle computer storage device, a base is attached to the vehicle computer storage device to the geodetic coordinates data of the road network of the vehicle operating region with data on the restrictions on movement in force in its sections vehicles based on the obtained current values of the coordinates of the vehicle by accessing the database of the road network of the region of operation of the vehicle determine the section of the road network on which the vehicle is located, the direction of movement and the current position of the vehicle on it, compare information about the current speed direction of movement, type and technical characteristics of the vehicle with the vehicle computer stored in the storage device and the database information on the restrictions on the movement of vehicles in force in this section of the region’s road network, if the vehicle’s speed, direction, type or technical specifications do not correspond to the restrictions in force in this section of the region’s road network, additionally include data on the nature of the discrepancy, differs from the closest analogue in that a harmonic oscillation with a frequency ω _c = ω _{1 is} formed at the control point, it is manipulated in phase by 1 80 ° modulating code M ₁ (t), corresponding to the number of the interrogated vehicle, thereby forming a complex signal with phase shift keying, amplify it by power, emit it on the air at frequency ω ₁ , pick it up by vehicle, amplify it by power, multiply and divide in phase two, isolated harmonic oscillation with a frequency ω _1, it is converted into a harmonic oscillation with a frequency ω _2, using a harmonic oscillation with a frequency ω ₁ for simultaneous detection of a complex signal with phase shift keying, isolated nizkoch -frequency voltage proportional to the modulating code M ₁ (t), compare it with the M ₁ (t) modulating code corresponding to the number polled vehicle, and in case of equality harmonic oscillation with a frequency ω ₂ is manipulated in phase by 180 ° modulating code M ₂ (t), appropriately formed packet of information, thereby forming a complex signal with phase shift keying, increase its power emit broadcast at frequency ω _2, trapped at the point of control, increase its power, is multiplied and divided in phase two, vyde yayut harmonic oscillation with a frequency ω _2, using it for the synchronous detection of a complex signal with phase shift keying, low frequency emit a voltage proportional to the modulating code M ₂ (t), and record it.

The problem is also solved by the fact that the proposed control system for the operation of vehicles for repair of urban heating systems, containing, in accordance with the closest analogue, a control point for the operation of special vehicles equipped with an antenna, a radio receiver and a computer connected to it, installed at least on one vehicle, an antenna, a radio transmitter and a receiver in series with the navigation radio signals with an antenna, a unit for accessing the road network database, input - the output of which is connected to the storage unit of the road network database, and the message generator, the second input of which is connected to the output of the vehicle’s shock sensor, the access to the database of the current restrictions on the movement of the vehicle, the input-output of which is connected to the output of the receiver of navigation radio signals associated with the storage unit of the database of current restrictions on the movement of the vehicle, and a unit for comparing technical characteristics and parameters of the movement of the vehicle means with current restrictions, the second input of which is connected to the first output of the storage device, and the output is connected to the third input of the message former, differs from the closest analogue in that it is equipped with a duplexer and a radio transmitter at the control point, while the radio receiver is made in the form of series-connected to the output a duplexer of a second power amplifier, a phase doubler, a phase divider into two, a narrow-band filter and a phase detector, the second input of which is connected to the output of the second power amplifier si, and the output is connected to a computer, the radio transmitter is made in the form of a master oscillator, a phase manipulator connected in series to the first computer output, the second input of which is connected to the second output of the computer through the modulator code generator, and the first power amplifier, the output of which is connected to the duplexer, the input is the output of which is connected to the antenna on the vehicle by a duplexer, a radio receiver, a frequency converter, a modulating code driver, a second comparison unit and a key, while the diode transmitter is made in the form of a phase manipulator key connected in series to the output of the key, the second input of which is connected to the output of the message former, and the second power amplifier, the output of which is connected to the duplexer, the input-output of which is connected to the antenna, the radio receiver is made in the form of the first duplexer connected to the output a power amplifier, a phase doubler, a phase divider, a narrow-band filter and a phase detector, the second input of which is connected to the output of the first power amplifier, and to the second move the storage device sequentially connected modulating code generator, the second comparator unit, the second input of which is connected to the output of the phase detector, and the key, the second input of which via inverter connected to the output of the narrowband filter.

The structural diagram of a system that implements the proposed method is presented in figure 1. Timing diagrams explaining the operation of the system are shown in figure 2 and 3.

The system contains a control point 1 on each vehicle subjected to control using the inventive system, vehicle equipment 5.

The control point 1 includes a computer 2, a radio 3, an antenna 4 and a radio transmitter 18. The radio 3 is made in the form of a second power amplifier 24, a doubler 25, a phase divider 26, a narrow-band filter 27 and a phase detector 28, connected in series to the output of the duplexer 23 the second input of which is connected to the output of the second power amplifier 24, and the output is connected to the computer 2. The radio transmitter 18 is made in the form of serially connected to the first output of the computer 2 of the master oscillator 19, phase manipulator 21, the second input otorrhea through modulation code generator 20 is connected to the second output of the computer 2 and the first power amplifier 22, whose output is connected to the duplexer 23, whose input-output is connected to the antenna 4.

The vehicle equipment 5 contains in series a receiver 6 of navigation radio signals with an antenna 7, a road network database access unit 10, the input-output of which is connected to the road network database storage unit 11, a message driver 16, the second input of which is connected to the output of the sensor 17 vehicle impact, phase manipulator 40, second power amplifier 41, duplexer 29, the input-output of which is connected to the antenna 9, the first power amplifier 31, phase doubler 32, phase divider 33 into two, narrow-band filter p 34, a phase detector 35, the second input of which is connected to the output of the first power amplifier 31, a second comparison unit 38, the second input of which is connected via the modulator code generator 37 to the second output of the storage device 14, and a key 39, whose second input is through the frequency converter 36 connected to the output of the narrow-band filter 34, the output of which is connected to the second input of the phase manipulator 40, block 12 accessing the database of existing restrictions on the traffic are connected in series to the receiver 6 of the navigation radio signals vehicle, the input-output of which is connected with the storage unit 13 of the database of existing restrictions on the movement of the vehicle, and the block 15 comparing the technical characteristics and parameters of the vehicle with the current restrictions, the second input of which is connected to the first output of the storage device 14, and the output connected to the third input of the shaper 16 messages. The phase manipulator 40 and the second power amplifier 41 form a radio transmitter 8. The first power amplifier 31, a phase doubler 32, a phase divider 33 into two, a narrow-band filter 34 and a phase detector 35 form a radio receiver 30.

The proposed method is implemented as follows.

Clause 1 of the control selectively or sequentially interrogates controlled vehicles used, for example, to eliminate defects in urban heating systems. To this end, on command from the computer 2 by the master oscillator 19, a harmonic oscillation is generated (Fig. 2, a)

u _c (t) = U _c cos (ω _c t + φ _c ), 0≤t≤T _c ,

where U _c , ω _c , φ _c , T _c is the amplitude, carrier frequency, initial phase, and duration of the harmonic oscillation that arrives at the first input of phase manipulator 21. A modulating code M ₁ (t) is supplied to the second input of phase manipulator 21 (Fig. .2, b) from the output of the modulator code generator 20, which corresponds to the number of the interrogated vehicle, the specified number is received from computer 2. When interrogating the following vehicles, the numbers and modulating codes will change.

The output of the phase manipulator 21 generates a complex signal with phase shift keying (PSK) (Fig.2, c)

u ₁ (t) U _c cos [ω _c t + φ _k1 (t) + φ _c ], 0≤t≤T _c ,

ω _{c =} ω ₁

where φ _k1 (t) = {0, π} is the manipulated phase component that displays the phase manipulation law in accordance with the modulating code M ₁ (t) (Fig. 2, b), and φ _k1 (t) = const at kτ _e <t <(k + 1) τ _e and can change abruptly at t = kτ _e , i.e. at the borders between elementary premises (k = 1,2, ..., N);

τ _e , N is the duration and number of chips that make up the signal with a duration of T _s (T _s = N τ _e ).

This signal after amplification in the power amplifier 22 is supplied through the duplexer 23 to the antenna 4, it is broadcasted on the frequency ω ₁ = ω _s , it is captured by the antenna 9 of the vehicle 5 and through the duplexer 29 and the power amplifier 31 is fed to the first (information) phase input detector 35 and the input of the doubler 32 phase.

At the output of the phase doubler 32, a harmonic oscillation is formed (FIG. 2, g)

u ₂ (t) = U ₂ cos (2ω _c t + 2φ _c ), 0≤t≤T _c .

;Where

;

k ₁ is the transmission coefficient of the multiplier, in which phase manipulation is already absent, since 2φ _k1 (t) = {0.2 π}.

As a phase doubler 32, you can use the multiplier, the two inputs of which receive the same PSK - signal u ₁ (t).

The spectrum width Δfс of a complex FMN signal is determined by the duration τ _{e of} its elementary premises

Whereas the width of the spectrum Δf _{2 of} its second harmonic is determined by the signal duration T _c

Therefore, when the phase is multiplied by two broadband FMN signals, its spectrum collapses N times

This circumstance makes it possible to detect and select a broadband FMN signal, among other signals and interference.

Harmonic oscillation u ₂ (t) (FIG. 2, d) from the output of the phase doubler 32 is fed to the input of the phase divider 33 into two, at the output of which harmonic oscillation is generated (FIG. 2, d)

u ₃ (t) = U ₃ cos (ω _c t + φ _c ), 0≤t≤T _c .

This oscillation is distinguished by a narrow-band filter 34, used as a reference voltage, and fed to the second (reference) input of the phase detector 35 and to the input of the frequency converter 36. The output of the phase detector 35 is formed of a low-frequency voltage (Fig.2, e)

u _H1 (t) = U _H1 cos ω _k1 (t), 0≤t≤T _c .

;Where

;

K ₂ - the transfer coefficient of the phase detector,

proportional to the modulating code M ₁ (t) (figure 2, b). This voltage is supplied to the first input of the comparison unit 38, to the second input of which a modulating code M ' ₁ (t) is supplied from the output of the modulating code generator 37. This code corresponds to the number of the interrogated vehicle, which comes from the storage device 14. If these codes are equal, the comparison unit 38 generates a constant voltage, which is supplied to the control input of the key 39 and opens it. In the initial state, the key 39 is always closed.

Harmonic oscillation u ₃ (t) (Fig. 2, e) from the output of the narrow-band filter 34 simultaneously enters the input of the frequency converter 36, the output of which is a harmonic oscillation (Fig. 3, a)

u ₄ (t) = cos (ω ₂ t + φ ₂ ), 0≤t≤T _c .

;Where

;

K ₂ - transmission coefficient of frequency conversion;

U _g - the voltage of the local oscillator, which is part of the frequency converter;

A feature of the interrogation system with an active response is the need for decoupling the interrogation and response signals, which is achieved by spacing them in frequency. To exclude harmonics, the ratio of the frequencies ω ₂ and ω _{1 of the} response and the request n / m is selected rationally.

In this case, the harmonic oscillation u ₄ (t) (Fig. 3, a) from the output of the frequency converter 36 through the public key 39 is supplied to the first input of the phase manipulator 40.

When vehicle equipment 5 is installed on the vehicle, data on the type of the vehicle (passenger car, truck, car with trailer, motorcycle, tractor, public utility vehicle or special vehicles), as well as the values of such technical characteristics, are recorded in the storage device 14 as its total mass, actual load on any axis, overall height, overall width, overall length and maximum speed. In block 11 storing the database of the road network is recorded attached to the geodetic coordinates of information about the road network of the region in which it is intended to use this vehicle, taking into account the address binding. Such a region can be a large settlement, region, territorial district, or the state as a whole. In block 13 of the database storage of existing restrictions on the movement of vehicles, information is entered on the existing on the road network sections of the region in accordance with the type and technical characteristics of the vehicle restrictions on the movement of vehicles, which take into account, for example, the area of the prohibition of traffic signs, prescribing traffic signs and horizontal road marking, the boundaries of settlements and the location of sections of the road network on which stopping or parking ortho funds.

When the vehicle enters the driving route, vehicle equipment 5 is turned on.

A receiver 6 of navigation radio signals with a receiving antenna 7 receives navigation signals from satellites in the radio-visible zone of a global satellite radio navigation system, for example, Glonass or Navstar, and, in accordance with known algorithms for its functioning, performs real-time determination based on them current values of time, coordinates and vehicle speed.

Each GPS satellite emits at two frequencies (ω ₁ = 1575 MHz and ω ₂ = 12.275 MHz) a special navigation signal in the form of a binary FMN signal, a phase-manipulated 180 ° pseudorandom sequence. Two types of codes are encrypted in the signal. One of them - the C / A code is available to a wide range of civilian consumers, including the proposed system. It allows you to get only a rough estimate of the location of the vehicle, therefore it is called a "Coarse" code. The C / A code is transmitted at a frequency of ω ₁ = 1575 MHz using phase-shift keying of the signal with a pseudo-random sequence of length N = 1023 characters.

Another code - P provides a more accurate calculation of coordinates, but not everyone is able to use it, access to it is limited by the GPS service provider (Navstar).

The obtained current values of the vehicle’s coordinates are sent to block 12 for accessing the database of current restrictions on the movement of vehicles, which, in accordance with their values, extracts from the block 13 for storing the database of current restrictions on the movement of vehicles information on restrictions in force on a given section of the road network the movement of vehicles in accordance with the type of vehicle and its technical characteristics and transmits it to block 15 comparing technical characteristics eristik and parameters of a vehicle operating with limited movement. This information about the current restrictions applies to vehicles of various types with different technical characteristics and takes into account, for example, the areas of the prohibition of road signs, prescriptive road signs and horizontal road markings, the boundaries of settlements and the location of sections of the road network where it is forbidden to stop or park vehicles funds. Block 15 comparison reveals restrictions on the movement that apply in relation to this particular vehicle of this type with these technical characteristics.

At the same time, the current values of the time, coordinates and speed of the vehicle from the receiver 6 of the navigation radio signals are sent to the comparison unit 15, which determines the compliance of the type, technical characteristics and parameters of the movement of the vehicle with the restrictions in force in this section of the road network. In this case, the comparison unit 15 determines, in accordance with the current restrictions, whether a given vehicle of a given type is moving with the given technical characteristics on a section of the road network allowed for the movement of such vehicles with a permitted speed and in a permitted direction, and if this vehicle stops moving, those. at a zero value of its speed, in a section of the road network where stopping or parking is prohibited, does the time of its stay in a stationary state correspond to acceptable values.

Only in case of any discrepancy of the type, technical characteristics or vehicle motion parameters with the current restriction, the comparison unit 15 transmits information about the number of the vehicle, the current time and the nature of the discrepancy to the message driver 16, i.e. about the type of violation of traffic rules, which includes it in the composition of the generated message.

At the same time, the block 10 accessing the database of the road network, based on the current values of the vehicle coordinates received from the receiver 6 of the navigation radio signals, extracts from the block 11 of the database storage of the road network information about the address of the location of the violation that corresponds to these coordinates, for example, information about the name of the settlement , the name of the street or avenue and the number of the house near which the violation occurred, and transmits this information to the shaper 16 messages, which also includes it formed message.

In addition, even if the type, technical characteristics and parameters of the vehicle’s movement comply with the current restrictions, but in the case of the operation of the vehicle impact sensor 17, i.e. in the event of a possible traffic accident, the signal generator 16 also generates a message that contains information about the number of the vehicle, the current values of the time and parameters of its movement, received from the comparison unit 15, and information about the address a possible traffic accident coming from block 10 access to the database of the road network, as well as information about the operation of the sensor 17 of the shock of the vehicle.

The generated message from the shaper 16 messages in the form of a modulating code M ₂ (t) (Fig.3, b) is fed to the second input of the phase manipulator 40, the output of which is the FMN signal (Fig.3, c)

u ₅ (t) = U ₄ cos [ω ₂ t + φ _k2 (t) + φ ₂ ], 0≤t≤T _c ,

which, after amplification in the power amplifier 41, enters through the duplexer 29 into the antenna 9, it is broadcast on the frequency ω ₂ , is captured by the antenna 4 of the control point 1 and through the duplexer 23 and the power amplifier 24 is fed to the first (information) input of the phase detector 28 and doubler input 25 phase.

At the output of the phase doubler 25, a harmonic oscillation is formed (Fig. 3, g)

u ₆ (t) = U ₆ cos (2ω ₂ t + 2φ ₂ ), 0≤t≤T _c .

Where

in which phase manipulation is already absent, since 2φ _k2 (t) = {0.2 π}. This oscillation is fed to the input of the phase divider 26 into two, at the output of which a harmonic oscillation is formed (Fig. 3, e)

u ₇ (t) = U ₇ cos (ω ₂ t + φ ₂ ), 0≤t≤T _c

This oscillation is distinguished by a narrow-band filter 27, used as a reference voltage, and fed to the second (reference) input of the phase detector 28. A low-frequency voltage is generated at the output of the phase detector 28 (Fig. 3, e).

u _H (t) = U _H2 cos φ _k2 (t), 0≤t≤T _c .

Where

proportional to the modulating code M ₁ (t) (Fig.3, b).

This voltage is supplied to the input of computer 2, which processes the received message and enters it into the database of detected violations of traffic rules stored in it.

At the same time, if the received message contains information about the operation of the vehicle impact sensor 17, indicating a possible traffic accident, as well as information on a significant discrepancy between the vehicle motion parameters and the current restrictions, for example, its long-term movement with a significant excess permissible speed, which poses a serious danger to other road users, computer 2 immediately displays the information of this message I am the operator of paragraph 1 of vehicle operation control.

Information about violations collected in the database of detected violations of traffic rules using computer 2 can be printed on paper by the operator of paragraph 1 of the control of the operation of vehicles and subsequently be used to bring administrative liability for drivers of vehicles that violate the rules of the road.

Based on the proposed system, Satellite-SPb CJSC developed a prototype that was used at the State Unitary Enterprise Fuel and Energy Complex of St. Petersburg to monitor the operation of up to 200 units of special vehicles while eliminating defects in city heating systems in St. Petersburg.

The following basic functions were assigned to the developed prototype:

- centralized control of the routes and parking of special vehicles using the interrogation method of obtaining packets of information about the location of special vehicles;

- registration of addresses of emergency facilities served;

- control of the duration of work at emergency facilities and fuel consumption by repair units of special vehicles;

- alarm system about emergency and criminogenic situations;

- control of work in the emergency zone with the fixation of the abnormal use of special vehicles;

- operation management (dispatching) of special vehicles. The results of the experiment showed the absence of loss of information packets when monitoring the operation of special vehicles.

Thus, the proposed method and system in comparison with the basic objects and other technical solutions of a similar purpose provide an increase in the reliability of the transmission of the information package from controlled special vehicles for the repair of urban heating systems to the vehicle operation control point. This is achieved through the use of selective or sequential polling of all controlled vehicles, two frequencies ω ₁ , ω ₂ and complex signals with phase shift keying.

A feature of a query system with an active response is the need for decoupling the query and response signals, which is achieved by spacing them in frequency. To exclude harmonics, the ratio of the frequencies ω ₁ , ω _{2 of the} response and the request n / m is chosen rationally.

Since in the interrogation method the signals of the receivers and transmitters of the proposed system are generated by a common master oscillator 19, then the reliability of the information transmission is affected only by the frequency drift of this generator only during the signal propagation from control point 1 to the controlled vehicle and vice versa.

Complex phase-shift signals open up new possibilities in messaging technology. These signals allow the use of a new type of selection - structural selection. This means that there is a new opportunity to separate signals operating in the same frequency band and at the same time intervals.

Among other problems, the solution of which largely determines the further progress of radio communications, should include the establishment of reliable radio communications in channels in the presence of a multipath nature of the propagation of radio waves. The presence of the multipath nature of the propagation of radio waves leads to a distortion of the received signals, which complicates the reception and reduces the reliability of the transmission of information.

Attempts to overcome the harmful effects of multipath have been made for a long time. These include diversity reception, signal selection by time and angle of arrival, corrective coding, and some other methods. However, all of them do not provide a fundamental solution to the problem.

Due to its good correlation properties, a complex signal with phase shift keying can be “folded” into a narrow pulse whose duration is inversely proportional to the used bandwidth. Choosing a frequency band so that the duration of the “convoluted” pulse is shorter than the delay time, it is possible to separately receive pulses arriving at the receiving point in various ways, and by summing their energy, it is also possible to increase the noise immunity of complex PSK signals. Thus, the indicated problem gets a fundamental solution.

From the point of view of detection, complex FMN signals have high energy and structural secrecy.

The energy secrecy of these signals is due to their high compressibility in time and spectrum with optimal processing, which reduces the instantaneous radiated power. As a result, a complex PSK signal at the receiving point may be masked by noise and interference. Moreover, the energy of a complex FMN signal is by no means small; it is simply distributed over the time-frequency domain so that at each point of this region the signal power is less than the power of noise and interference.

The structural secrecy of complex FMN signals is caused by a wide variety of their forms and significant ranges of parameter changes, which makes it difficult to optimize or at least quasi-optimal processing of complex FMN signals of unknown structure in order to increase the sensitivity of the receiver.

Claims (2)

1. A method of controlling the operation of special vehicles for the repair of urban heating systems, including setting the vehicle number, entering the specified number into the vehicle computer’s storage device, receiving the navigation signals from the global satellite navigation system on the vehicle, determining the current time values based on the received navigation signals , coordinates and speed of the vehicle, the formation of a package of information containing data on current values In this case, information on the type and technical characteristics of the vehicle is preliminarily entered into the vehicle computer’s storage device, and a database of the road network of the vehicle’s operating region with geodesic coordinates is attached to the vehicle’s computer storage device with data about restrictions on the movement of vehicles in force in its sections based on the received current values of vehicle inat by referring to the database of the road network of the vehicle operating region, determine the section of the road network on which the vehicle is located, the direction of movement and the current position of the vehicle on it, compare information about the current speed, direction of movement, type and technical characteristics of the vehicle with the database information stored in the storage device of the vehicle computer on the road network operating on this section of the road network ion restrictions on the movement of vehicles, in case of discrepancy of speed, direction, type or technical characteristics of the vehicle to the restrictions in force in this section of the road network of the region, the information package on the nature of the discrepancy is additionally included in the generated information package, characterized in that harmonic oscillation with a frequency of ω _c = ω ₂ manipulate it in phase by 180 ° modulating code M ₁ (t), corresponding to the number polled vehicle Fur iruya thereby complex signal with phase shift keying, increase its power emit broadcast at frequency ω _1, trapped in a vehicle, increase power, is multiplied and divided in phase two, isolated harmonic oscillation with a frequency ω _1, convert it into harmonic oscillation with a frequency ω ₂ using harmonic oscillation with a frequency ω ₁ for simultaneous detection of a complex signal with phase shift keying, low frequency emit a voltage proportional to the modulating code M ₁ (t), compare it with a modulating M _'1 (t) house, corresponding to the number polled vehicle, and in case of equality harmonic oscillation with a frequency ω ₂ is manipulated in phase by 180 ° modulating code M ₂ (t) corresponding to the formed packet of information, thereby forming a complex signal with phase shift keying, increase its power emit broadcast at frequency ω _2, catch on point control, increase its power, is multiplied and divided in phase two, isolated harmonic oscillation with a frequency ω _2, using it for the synchronous detection layer Nogo signal with phase shift keying, low frequency emit a voltage proportional to the modulating code M ₂ (t), and record it. 2. A control system for the operation of special vehicles for repairing urban heating networks, comprising a control point for the operation of special vehicles, equipped with an antenna, a radio receiver and a computer connected to it, an antenna, a radio transmitter, and a navigation radio signal receiver connected in series to at least one vehicle with an antenna, a unit for accessing the database of the road network, the input-output of which is connected to the storage unit for the database of the road network, and a message carrier, the second input of which is connected to the output of the vehicle’s shock sensor, a unit for accessing the database of valid restrictions on the movement of the vehicle, an input-output of which is connected to the output unit of the database of valid restrictions on the movement of the vehicle, connected in series to the output of the receiver of the navigation radio signals, and a unit for comparing technical characteristics and vehicle motion parameters with current restrictions, the second input of which is connected to the first the output of the storage device, and the output is connected to the third input of the message former, characterized in that it is equipped with a duplexer and a radio transmitter at the control point, the radio receiver being made in the form of a second power amplifier, a phase doubler, a phase divider into two, narrowband connected to the duplexer output filter and phase detector, the second input of which is connected to the output of the second power amplifier, and the output is connected to a computer, the radio transmitter is made in the form of series-connected to the first computer output of the master oscillator, phase manipulator, the second input of which is connected to the second output of the computer through the modulating code generator, and the first power amplifier, the output of which is connected to the duplexer, the input-output of which is connected to the antenna, on the vehicle by a duplexer, radio receiver, converter frequency, modulator code generator, a second comparison unit and a key, while the radio transmitter is made in the form of a phase manipulator connected in series to the output of the key, the second input of which is connected to the output of the shaper of messages, and the second power amplifier, the output of which is connected to the duplexer, the input-output of which is connected to the antenna, the radio receiver is made in the form of a series amplifier connected to the output of the duplexer of the first power amplifier, phase doubler, phase divider into two, narrowband filter and phase detector, the second input of which is connected to the output of the first power amplifier, and the generator of the modulating code is connected in series to the second output of the storage device a, a second comparison unit, the second input of which is connected to the output of the phase detector, and a key, the second input of which is connected through the frequency converter to the output of the narrow-band filter.

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