RU2725101C1 - Traffic control system - Google Patents

Abstract

FIELD: ensuring road safety.SUBSTANCE: invention relates to the field of traffic safety. Traffic control system comprises signaling devices and actuating devices. Each signaling device comprises a binary input unit, a synchroniser, a transmitting device, a code generator, a first heterodyne frequency synthesizer, an amplifier and power, a phase manipulator, a mixer and a carrier frequency synthesizer, a first intermediate frequency amplifier, a duplexer, an external antenna, a receiving device, a second heterodyne frequency synthesizer, a second intermediate frequency amplifier, a multiplier, a band-pass filter, a phase detector, a recording unit, an oscillation system, a narrow-band filter, an amplitude detector, a threshold unit and a switch. Each actuating device comprises an analogue and discrete signals input unit, a relay outputs unit, a liquid crystal monitor, a controller, an external memory unit, a transceiver, a synchroniser, a pseudorandom code generator, a carrier frequency synchronizer, a phase manipulator, a first heterodyne frequency synthesizer, mixer and amplifier of the first intermediate frequency, amplifiers and powers, a duplexer, a narrow-band filter, an amplitude detector, a threshold unit and a switch.EFFECT: higher noise immunity and reliability of information.1 cl, 4 dwg

Description

The proposed system relates to the field of road safety and can be used to monitor compliance with traffic rules (SDA).

The system is a set of software and hardware designed to monitor compliance with traffic rules, as well as to alert drivers of vehicles (TS) with a voice message with a graphic display on the monitor of all permanent or temporary signs installed on the road, restrictions introduced or canceled by these signs.

Known systems for monitoring compliance with traffic rules by vehicles (patents RF №№ 2.116.208, 2.155.684, 2.156.706, 2.159.190, 2.179.121, 2.194.282, 2.243.594, 2.278.415, 2.324.980, 2.382.416, 2.384.887, 2.444.793 ; UK patent No. 2.291.235; Dikarev V.I. Safety, protection and rescue. St. Petersburg, 2007, p. 78 104 and others).

Of the known systems closest to the proposed one is the "System for Monitoring compliance with traffic rules" (RF Patent No. 2,444.793, G08 G1 / 01, 2010), which is selected as a prototype.

The known system provides control of compliance with traffic rules, in particular the high-speed mode of movement of vehicles, the rules of passage of railway crossings, regulated intersections, roads and pedestrian crossings, the requirements of road signs.

The system comprises a signal device located at the monitoring site and an actuator located at the vehicle. The signal and actuating devices exchange information about the controlled parameter via a duplex radio link, organized using the technology of spreading the spectrum with pseudo-random tuning of the operating frequency (frequency hopping) and time division of channels.

The signal and actuating devices are made according to a superheterodyne circuit in which the same values of the second intermediate frequency ω _pr2i can be obtained by receiving signals at frequencies ω _1i , ω _2i , ω _3i and ω _З2i , i.e.

ω _1i- ω _r1i = ω _up2i , ω _r2i- ω _2i = ω _{p p2i} , ω _r1i- ω _{1 1i} = ω _{p p2i} , ω _{2 2i -ω r2i} = w _pr2i .

Consequently, if the tuning frequency ω _1i and ω _{2i are} taken as the main reception channel, then along with them there will be mirror receiving channels, frequencies ω _З1i and ω _З2i which differ from the frequencies ω _1i and ω _2i by 2ω _pr2i and are located symmetrically (mirror ) relative to the frequencies of the local oscillators ω _r1i and ω _r2i (figure 3). The conversion of the mirror channels of reception occurs with the same conversion coefficient K _ol as the main channels of reception.

Therefore, they most significantly affect the selectivity and noise immunity of the signal and actuating devices.

In addition to mirrored, there are other additional (combinational) reception channels. In general terms, any combination reception channels take place when the following conditions are met:

ω _p2i = | ± m ω _ki ± nω _r1i |

ω _pp2j = | ± mω _kj ± nω _r2j |

where ω _ki , ω _kj are the frequencies of the i-th and j-th Raman reception channels;

m, n, i, j are positive integers,

The most harmful Raman reception channels are the channels formed when interacting with the first harmonic of the frequency of the signals with the harmonics of the frequency of the local oscillators of the small order (second, third), since the sensitivity of the signal and actuating devices on these reception channels is close to the sensitivity of the main reception channels. So, four reception channels with m = 1 and n = 2 correspond to frequencies:

ω _k1i = 2ω _r1i - ω _np2i , ω _k2i = 2ω _r1i + ω _np2i ,

ω _k3i = 2ω _r2i - ω _np2i , ω _k4i = 2ω _r2i + ω _np2i .

The presence of false signals (interference) received via additional channels leads to a decrease in noise immunity and reliability of the exchange of discrete information between the signal and actuating devices.

An object of the invention is to increase the noise immunity and reliability of the exchange of discrete information between signaling and actuating devices by suppressing false signals (interference), received via additional channels.

The problem is solved in that the system of monitoring compliance with traffic rules, in particular the high-speed mode of movement of vehicles, the rules of passage of railway crossings, regulated intersections and pedestrian crossings, the requirements of road signs, containing, in accordance with the closest analogue, a signal device placed on the control place, and an actuator located on the vehicle, exchanging information between themselves on a radio line organized using spread spectrum technology with pseudo-random tuning of the operating frequency and time division of channels, while the signaling device includes a discrete signal input unit, a transmitting device, and a receiving device , a carrier frequency synthesizer, a first power amplifier and an external antenna, an actuator includes an analog and discrete signal input unit, a controller connected to a transceiver with a built-in antenna, an external memory unit, with a LCD monitor and with a block of relay outputs, signal devices are configured to transmit information about a controlled parameter using service signals, in a specific sequence, with spatial diversity of signals, actuators are configured to receive information about a controlled parameter from signal devices in a certain sequence, fixing violations of the monitored parameters in the external memory unit, informing the driver of the vehicle about the violations, imposed and canceled restrictions, established road signs, and the transmitting device is made in the form of sequentially connected synchronizer, pseudo-random code generator, carrier frequency synthesizer, phase manipulator, the second input of which connected to the output of the discrete signal input unit, the first mixer, the second input of which is connected through the frequency synthesizer of the first local oscillator to the output of the generator a random code, an amplifier of the first intermediate frequency and a first power amplifier, the output of which is connected to the output of the duplexer, the input-output of which is connected to an external antenna, the receiving device is made in the form of a second power amplifier, a second mixer, the second input of which is connected through a synthesizer to the duplexer the frequency of the second local oscillator is connected to the output of the pseudo-random code generator, and the second intermediate-frequency amplifier, connected in series to the output of the frequency synthesizer of the second local oscillator of the multiplier, a bandpass filter, a phase detector, the second input of which is connected to the output of the synthesizer of the frequent first local oscillator, and the recording unit, The transceiver is made in in the form of sequentially connected synchronizer, pseudo-random code generator, carrier frequency synthesizer, phase manipulator, the second input of which is connected to the output of the input block of analog and discrete signals, the first mixer, the second input of which is through synthesis the frequency generator of the first local oscillator is connected to the output of the pseudo-random code generator, the first intermediate frequency amplifier, the first power amplifier, the duplexer, the input-output of which is connected to the built-in antenna, the second mixer, the second input of which is connected through the frequency synthesizer of the second local oscillator to the output of the pseudo-random code generator and amplifier the second intermediate frequency, multiplied in series to the output of the frequency synthesizer of the second local oscillator, a bandpass filter and a phase detector, the second input which is connected to the output of the frequency synthesizer of the first local oscillator, and the output is connected to the input of the controller, actuators are capable of transmitting information about violations of the rules of the road movement of vehicles and their registration chambers, and signal devices are configured to receive information indications, differs from the closest analogue in that each signal device is equipped with an oscillating system, us triple frequency ω _2i , a narrow-band filter, an amplitude detector, a threshold block and a key, and to the output of the second amplified power, an oscillating system tuned to frequencies ω _2i , a narrow-band filter, an amplitude detector, a threshold block and a key, the second input of which is connected to the output of the amplifier of the second intermediate frequency, and the output connected to the second input is multiplied, each actuator is equipped with a combiner system tuned to the frequencies ω _1i , a narrow-band filter, an amplitude detector, a threshold block and a key, and an oscillating system configured in series with the output of the second power amplifier frequency ω _1i , a narrow-band filter, an amplitude detector, a threshold block and a key, the second input of which is connected to the output of the amplifier of the second intermediate frequency, and the output is connected to the second input is multiplied.

The block diagram of the signal device 1 is presented in figure 1. The structural diagram of the executive device 11 is presented in figure 2. A frequency diagram explaining the process of converting signals by frequency is shown in FIG. 3. A fragment of the time-frequency matrix of the used signals with pseudo-random tuning of the operating frequency (MFC) is shown in FIG. 4.

The signal device 1, placed at the control site, contains serially connected synchronizer 3, pseudo-random code generator 5, carrier frequency synthesizer 18, phase manipulator 8, the second input of which is connected to the output of discrete signal input unit 2, the first mixer 9, the second input of which is through the synthesizer 6 frequencies of the first local oscillator is connected to the output of the pseudo-random code generator 5, an amplifier 19 of the first intermediate frequency, a first power amplifier 7, a duplexer 20, the input-output of which is connected through the synthesizer 24 of the frequencies of the second local oscillator to the output of the pseudo-random code generator 5, the second intermediate frequency amplifier 26, a key 52, a multiplier 27, the second input of which is connected to the output of the synthesizer 24 often of the second local oscillator, a bandpass filter 28, a phase detector 29, the second input of which is connected to the output of the frequency synthesizer 6 of the first local oscillator, and a recording unit 30.

An oscillatory system 48 tuned to the frequencies ω _2i , a narrow-band filter 49, an amplitude detector 50, and a threshold block 51, the output of which is connected to the second input of the key 52, are connected in series to the output of the second power amplifier 23.

Synchronizer 3, pseudo-random code generator 5, carrier frequency synthesizer 18, phase shifter 8, first mixer 9, first heterodyne frequency synthesizer 6, first intermediate frequency amplifier 19 and first power amplifier 7 form a transmitting device 4.

The second power amplifier 23, the second mixer 25, the second frequency synthesizer 24 of the second local oscillator, the second intermediate frequency amplifier 26, the multiplier 27, the bandpass filter 28, the phase detector 29 and the recording unit 30 form a receiver 22, an oscillation system 48, a narrow-band filter 49, an amplitude detector 50, threshold block 51, and key 52.

The actuator 11, placed on the vehicle 10, contains a series-connected transceiver 17 with a built-in antenna 40 and a controller 15 connected to the relay output unit 13, the liquid crystal monitor 14 and the external memory unit 16.

The transceiver 17 contains a serially connected synchronizer 31, a pseudo-random code generator 32, a carrier frequency synthesizer 33, a phase manipulator 34, the second input of which is connected to the output of the analog and discrete signals input unit 12, the first mixer 36, the second input of which is connected through the frequency synthesizer 35 of the first local oscillator with the output of the pseudo-random code generator 32, the first intermediate frequency amplifier 37, the first power amplifier 38, the duplexer 39, the input-output of which is connected to the built-in antenna 40, the second power amplifier 41, the second mixer 43, the second input of which is connected through the frequency synthesizer 42 of the second local oscillator with the output of the pseudo-random code generator 32, the second intermediate frequency amplifier 44, the key 52, the multiplier 45, the second input of which is connected to the output of the second frequency synthesizer 42, the bandpass filter 46 and the phase detector 47, the second input of which is connected to the output of the frequency synthesizer 35 of the first local oscillator , and the output is connected En to the controller output 15.

An oscillatory system 53, a narrow-band filter 54, an amplitude detector 55, and a threshold unit 56, the output of which is connected to the second input of the key 57, are connected in series to the output of the second power amplifier 41.

The general format of packets used in the radio channel consists of 3 parts: access code, header and useful information. Asynchronous packets are used, without connection establishment. Access codes are service communication signals and are used for notification and exchange of service information. 3 access codes are used. The request access code is used to detect actuator modules located in the signal device coverage area. The parameter code contains a sign of the parameter being monitored. The restriction removal code contains the corresponding attribute.

Information about the monitored parameter exchanged between signaling and actuating devices will be referred to as the “parameter code”.

The system for monitoring compliance with traffic rules operates as follows.

The executive device of the vehicle is constantly in standby mode, changing frequencies according to the established algorithm.

At the monitoring site, alarm devices are installed. The antenna diagram of one signal device is directed towards the movement of vehicles, and the antenna diagram of another device is directed along the vehicle in the same direction.

The signaling devices transmit the “request access code” and “parameter code”, while information through the “request access code” and “parameter code” is transmitted through an antenna directed towards the vehicle, and only “parameter code” information is transmitted through the other antenna

The TS executive device analyzes the received information from signaling devices of a given direction and, if the received “parameter code” coincides with the “parameter code” in the memory of the executive device, a violation of the monitored parameter is recorded.

On the signal device 1, using a synchronizer 3, a pseudo-random code generator 5 is turned on, which, in turn, controls the operation of the carrier frequency synthesizer 18, the first frequency oscillator synthesizer 6 and the second local oscillator frequency synthesizer 24.

At the output of the synthesizer 18 carrier frequencies, a grid of high-frequency oscillations of various carrier frequencies is sequentially formed in time:

u ₁ (t) = U ₁ cos (ω ₁ t + φ ₁ ),

u ₂ (t) = U ₂ cos (ω ₂ t + φ ₂ ),

……………………………… ..

u _i (t) = U _i cos (ω _i t + φ _i ),

……………………………… ..

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

T _c = Mt _c ,

where U _i , w _i , φ _i , ᴛ _i - amplitude, carrier frequency, initial phases and signal duration;

i = 1,2,. . ., M,

M is the number of carrier frequencies used (number of frequency channels);

M = Δω _c / Δω ₁ ,

Δω _c is the bandwidth of the spread spectrum of the signal used (figure 4);

Δω ₁ is the bandwidth of one frequency channel;

t _c - the time interval between switching frequencies, characterizes the operating time at one carrier frequency.

Depending on the ratio of the operating time at one frequency t _c and the duration of the information symbols τ _{e, the} pseudo-random tuning of the working frequency (PFRCH) can be divided into: intersymbol, character and character. In the case of intersymbol frequency hopping, n information symbols (n≥2) are transmitted at the same frequency, while

t _c = nτ _e .

The generated high-frequency oscillations sequentially in time arrive at the first input of the phase manipulator 8, the second input of which receives the modulating code M ₁ (t), which is information about the controlled parameter, from the output of the discrete signal input unit 2. At the output of the phase manipulator 8, phase-shift (PSK) signals are generated

u _ci (t) = U _i cos [w _i t + φ _ki (t) + φ _i ], 0 ≤ t ≤ T _c ,

where φ _к1 (t) = {0; π} is the manipulated phase component that displays the phase manipulation law in accordance with the modulating code M ₁ (t), and φ _k (t) = const for 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-1);

τ _e , N is the duration and number of chips that make up the signal of duration T _c (T _c = Nτ _e );

which are supplied to the first input of the mixer 9, the second input of which is fed to the voltage of the synthesizer 6 frequencies of the first local oscillator:

u _r11 (t) = U _r11 cos (ω _r11 t + φ _r11 ),

u _r12 (t) = U _r12 cos (ω _r12 t + φ _r12 ),

……………………………… ..

u _r1i (t) = U _r1i cos (ω _r1i t + φ _r1i ),

……………………………… ..

u _r1M (t) = U _r1M cos (ω _r1M t + φ _r1M ),

which are formed sequentially in time using the pseudo-random code generator 5.

The output of the mixer 9 is formed voltage of the Raman frequencies. The amplifier 19 distinguishes the voltage of the first intermediate (total) frequency

u _CR1i (t) = U _CR1i cos [ω _CR1i t + φ _k1 (t) + φ _CR1i ],

where U _pr1i = ½ U _i U _rli ;

ω _pr1i = ω _i + ω _r1i is the first intermediate (total) frequency;

φ _{n pli} = φ _l + φ _rli .

These voltages, after amplification 7 of the power, through the duplexer 20 enters the external antenna 21, is radiated by it at a frequency ω _1i = ω _p1i , is captured by the built-in antenna 40 of the vehicle 10, and through the duplexer 20 and the power amplifier 41 go to the input of the mixer 43, to the second the input of which voltages u _r1i (t) of the frequency synthesizer 42 of the second local oscillator 42 are supplied. At the output of the mixer 43, the frequencies of the combination frequencies are generated. Amplifier 44 produces a voltage of the second intermediate (difference) frequency

u _CR2i (t) = U _CR1i cos [ω _CR1i t + φ _k1 (t) + φ _CR1i ],

where U _pr2i = ½ U _pr1i U _rli ;

ω _CR2i = ω _CR1i - ω _r1i is the second intermediate (total) frequency;

φ _pp2i = φ _pr1i - φ _rli .

At the same time, signals at frequencies ω _1i = ω _up1i with the output of power amplifier 41 are fed to the input of oscillation system 53, the tuning frequency ω _{H1i of} which is chosen to be equal to frequencies ω _{r2i of} frequency synthesizer 35 (ω _H1i = ω _r2i ). The output voltage of the oscillating system 53 is extracted by a narrow-band filter 54, detected by an amplitude detector 55 and fed to the input of the threshold unit 56, where it is compared with the threshold voltage U _then.

With the resonance that occurs when ω _1i = ω _r2i , the output voltage of the oscillation system 53 reaches its maximum value, the voltage of the amplitude detector 55 U _max exceeds the threshold level U of _holes in the threshold block 56 (U _max > U _then ). And only when the threshold level U _{then is} exceeded (this happens only when the resonance phenomenon occurs), a constant voltage is generated in the threshold block 56, which is supplied to the control input of the key 57 and opens it; in the initial state, the key 57 is always closed. In this case, the voltage u _p2i (t) from the output of the amplifier 44 of the second intermediate frequency through the public key 57 is supplied to the second input of the multiplier 45. The following voltages are generated at the output of the latter.

u _3i (t) = U _3i cos (ω _r2i t + φ _k1 (t) + φ _r2i ),

where U _3i = ½ U _pr2i U _rli ;

ω _r2i = ω _pr2i + ω _r1i

φ _r2i = φ _pr2i + φ _rli .

which are allocated by a band-pass filter 46 and fed to the first (information) input of the phase detector 47, to the second input of which the voltage of the synthesizer 35 of the frequencies of the first local oscillator is applied:

u _r21 (t) = U _r21 cos (ω _r21 t + φ _r21 ),

u _r22 (t) = U _r22 cos (ω _r22 t + φ _r22 ),

……………………………… ..

u _r2i (t) = U _r2i cos (ω _r2i t + φ _r2i ),

……………………………… ..

u _r2M (t) = U _r2M cos (ω _r2M t + φ _r2M ),

At the output of the phase detector 47, low-frequency voltages are generated

u _нli (t) = U _нli cosφ _к1 (t),

where U _нli = ½U _3i U _r2i ;

proportional to the modulating code M ₁ (t).

As an example in FIG. 4 shows a fragment of the time-frequency matrix of a complex signal with phase shift keying with frequency hopping. In this case, n was chosen equal to 4 (t _c = 4τ _e ), the squares with different oblique shading indicate different information symbols with different phases (0; π).

If the vehicle violates the rules of the road, the nature of this violation, together with the registration number of the vehicle, is transmitted over the air to its signal devices, where they are recorded together with the current time.

To this end, the synchronizer 31 includes a pseudo-random code generator 32, which, in turn, controls the operation of the carrier frequency synthesizer 33, the first frequency oscillator synthesizer 35 and the second local oscillator frequency synthesizer 42.

At the output of the synthesizer 33 carrier frequencies, a grid of high-frequency oscillations of various carrier frequencies is formed sequentially in time, similar to a similar grid of a signal device:

u ₁ (t) = U ₁ cos (ω ₁ t + φ ₁ ),

u ₂ (t) = U ₂ cos (ω ₂ t + φ ₂ ),

…………………………

U _i (t) = U _i cos (ω _i t + φ _i ),

…………………………

u _M (t) = U _M cos (ω _M t + φ _M ).

These vibrations sequentially in time arrive at the first input of the phase manipulator 34, to the second input of which information is supplied from the output of the analog and discrete signals input unit 12, corresponding to the nature of the violation of the rules of the road by the vehicle, its registration number and current time. The modulating code M ₂ (t) is formed from the indicated information.

At the output of the phase manipulator 34 formed PSK signals.

u _4i (t) = U _i cos [ω _i t + φ _к2 (t) + φ _i ], 0≤ t ≤ T _c ,

where φ _k2 (t) = {0; π} is the manipulated phase component that displays the phase manipulation law in accordance with the modulating code M ₂ (t), which are fed to the first input of the mixer 36. The voltage u _r2i (t ) synthesizer 35 frequencies of the first local oscillator. At the output of the mixer 36, voltages of combination frequencies are generated. The amplifier 37 distinguishes the voltage of the frequency differences

u _pi (t) = U _pi cos [ω _2i t - φ _к2 (t) + φ _2i ],

where U _pi = ½U _i U _r2i ;

ω 2i = ω _g2i - ω _p2i , difference frequency;

φ _2i = φ _r2i - φ _i .

These voltages after amplification in the power amplifier 38 through the duplexer 39 enter the built-in antenna 40, are radiated by it, are captured by the external antenna 21 of the signal device, and through the duplexer 20 and the power amplifier 23 are fed to the first input of the mixer 25, the voltage u _g2i (t) of the synthesizer 24 frequencies of the second local oscillator. At the output of the mixer 25, voltages of combination frequencies are generated. The amplifier 26 is allocated voltage of the second intermediate frequency.

u _p3i (t) = U _pr3i cos [ω _p2i t + φ _к2 (t) + φ _p3i ],

where U _pr3i = ½U _pi U _r2i ;

ω _up2i = ω _g2i - ω _g2i is the second intermediate (difference) frequency;

φ _g1i = φ _g2i - φ _p3i .

At the same time, the signals at frequencies ω _2i = ω _up3i from the output of the power amplifier 23 are fed to the input of the oscillation system 48, the tuning frequency ω _{H2i of} which is chosen equal to the frequencies ω _{r1i of} the 6 frequency synthesizer (ω _H2i = ω _r1i ). The output voltage of the oscillation system 48 is extracted by a narrow-band filter 49, detected by an amplitude detector 50 and fed to the input of the threshold unit 51, where it is compared with the threshold voltage U _then . When the resonance occurs at ω _2i = ω _r1i , the output voltage of the oscillation system 48 reaches its maximum voltage, the voltage of the amplitude detector 50 U _max exceeds the threshold level U _pores in the threshold block 51 (U _max > U _pores ). And only above a threshold level _nor U (this happens only upon the occurrence of a resonance phenomenon) in the threshold block 51 is formed by a constant voltage which is supplied to the control input of switch 52 and opens it. In the initial state, key 52 is always closed. In this case, the voltage U _p3i (t) (from the output of the amplifier 26 of the second intermediate frequency through the public key 52 is supplied to the second input is multiplied 27. The following voltages are generated at the output of the latter.

u _5i (t) = U _5i cos [ω _rli t - φ _к2 (t) - φ _гli ],

U _{5i =} ½U for _p3i U _r2i

where ω _g1i = ω _g2i - ω _up2i ,

φ _{g1i =} φ _g2i - φ _up3i ,

which are allocated by the band-pass filter 28 and fed to the first (information) input of the phase detector 29, the second (reference) input of which is supplied with the voltage u _r1i (t) of the frequency synthesizer 6 of the first local oscillator. The output of the phase detector 29 produces low-frequency voltage

u _Н2i (t) = U _н2i cos φ _к2 (t),

where U _Н2i = ½U _5i U _r1i ;

proportional to the modulating code M ₂ (t). These voltages are recorded by the registration unit 30.

Options for using the proposed system

1. Speed control

Signaling devices are installed at the level of the speed limit sign (designated start of the settlement) and at the place where the action of the speed limit sign ends (at the exit of the settlement).

When approaching the speed limit sign, the vehicle enters the coverage area of the first signaling device. The signal device in even slots cycles through the “request access code” and “parameter code”. The vehicle's actuator in the first even slot receives the “request access code”, performs the time synchronization procedure, and enters the call waiting state. In the next even slot, the actuator receives a “parameter code”.

Continuing movement, the actuator moves into the coverage area of another signaling device and receives a “parameter code”.

If the permissible speed is exceeded, the driver of the vehicle receives a warning signal, then, if the driver has not reduced speed to the permitted value, after a set time, the actuator fixes the time and nature of the violation, puts the vehicle’s signaling devices in a special mode. Speed control continues throughout the vehicle’s movement in a controlled area (locality), and it is possible to record each speeding as a separate violation. Speed violation, time of violation and registration number of the vehicle that violated the speed limit are recorded by alarm devices.

At the end of the monitored area (at the exit from the settlement), the executive device receives a “restriction removal code” and turns off the speed control program. The driver receives a voice message about the cancellation of the restriction with the display of information on the monitor.

2. Control of the passage of regulated intersections of roads, pedestrian crossings and railway crossings

Signal devices are installed together with traffic lights (semaphores) and are connected to them through input blocks of discrete signals.

When the traffic light switches from “enable” to “warning” signal, the first signaling device starts transmitting “request access code” and “parameter code” according to the earlier algorithm considered. When the traffic light switches from “warning” to “prohibitory” signal, the second signaling device starts transmitting the “parameter code”.

When the vehicle moves to the “prohibitory” traffic signal, the executive device receives a “parameter code” in the coverage area of another signal device, analyzes the received information, compares it with the code stored in the controller’s internal memory, and when the codes match, it records the time and nature of the violation , puts the vehicle lighting in special mode, notifies the driver of the violation by voice message with the display of information on the monitor 14.

The time and nature of the violation are recorded by the alarm device.

When the traffic light switches from a “warning” signal to an “enabling” signal device, it stops working.

For level crossings, the difference between the algorithm is that the signaling device starts to transmit when the “inhibitory” semaphore signal is turned on.

3. Monitoring compliance with the requirements of marks

The peculiarity of the algorithm is that the signal devices constantly transmit the “request access code” and the “parameter code”, other signal devices constantly transmit only the “parameter code” as previously discussed.

For signs prohibiting stopping and parking, the difference is that after receiving the “request access code” and “parameter code”, the actuator activates the vehicle speed control program and, when the speed drops to zero, after a set interval of time, it records a violation. The same violation and the time of its commission is recorded by the signal device. At the end of the restriction section, a signal device is installed that transmits a “restriction removal code”.

4. The technical means of the system make it possible to organize alerts for vehicle drivers about all signs installed on the road, both permanent and temporary, as well as about dangerous conditions on road sections (heavy fog, ice, snow drifts, etc.).

An approximate list of traffic rules, compliance with which can be monitored:

- passage of intersections of roads and pedestrian crossings regulated by traffic lights;

- passage of railway crossings;

- high-speed mode in settlements, in residential areas, in domestic territories, on sections of highways and roads;

- maximum speed determined by the technical characteristics of vehicles;

- the speed indicated on the identification mark “speed limit” installed on the vehicle;

- requirements of priority signs:

"Movement without stopping is prohibited";

- requirements of prohibition signs:

"No entry",

"Movement Prohibition",

"The movement of motor vehicles is prohibited",

"The movement of trucks is prohibited",

“No motorcycle traffic”,

"The movement of tractors is prohibited", "Danger",

"Turning to the right (left) is prohibited."

"Maximum speed limit",

"Stop is prohibited"

" No parking",

- requirements of prescriptive signs:

"The movement is straight,"

"Move to the right,"

“Move to the left”,

“Move straight or right”,

“Move straight or left,”

“Move right or left”,

"Minimum speed limit"

"Bike Lane",

"Footpath",

- signs of special requirements:

One-Way Road

“Parking Restricted Area”,

"Zone with maximum speed limit",

"Pedestrian zone".

The described system will improve the efficiency of traffic control authorities, not only reduce the number of traffic violations, but also prevent them.

The proposed system provides not only control of compliance with traffic rules, in particular high-speed mode of movement of vehicles, rules of passage of railway crossings, regulated intersections of roads and pedestrian crossings, requirements of road signs, but also allows you to register at the place of control the nature and time of violations by vehicles of traffic rules traffic their registration numbers. This is achieved by the use of duplex radio communication using complex signals with phase shift keying with pseudo-random tuning of the operating frequency (PFRCH). These signals have energy, structural, informational, temporal and spatial secrecy.

Thus, the proposed system in comparison with the prototype and other technical solutions for a similar purpose provides increased noise immunity and reliability of the exchange of discrete information between signal and actuators. This is achieved by suppressing false signals (interference) received via additional channels through the use of oscillatory systems that implement the resonance phenomenon.

It should be noted that the phenomenon of resonance is a fundamental principle of operation of many systems and devices of radio electronics.

Authors: Dikarev Viktor Ivanovich

Stakhno Roman Evgenievich

Alekseev Sergey Alekseevich

Parfenov Nikolay Petrovich

Claims (1)

A system for monitoring compliance with traffic rules, in particular, vehicle speed limits, railway crossing rules, regulated intersections and pedestrian crossings, traffic sign requirements, containing a signaling device located at the place of control and an actuating device placed on the vehicle exchanging information on the radio line organized using spread spectrum technologies with pseudo-random tuning of the operating frequency and time division of channels, the signal device including a discrete signal input unit, transmitting devices, a receiving device, a carrier frequency synthesizer, a first power amplifier and an external antenna, an executive the device includes an analog and discrete signal input unit, a controller connected to the transceiver with a built-in antenna, an external memory unit, a liquid crystal monitor and a relay output unit, signaling devices a is configured to transmit information about a controlled parameter using service signals in a specific sequence with spatial diversity of signals, actuators are configured to receive information about a controlled parameter from signal devices in a specific sequence, to fix the violations of controlled parameters in an external memory unit, to inform the driver vehicle about the violations, imposed and canceled restrictions, established road signs, and the transmitting device is made in the form of sequentially connected synchronizer, pseudo-random code generator, carrier frequency synthesizer, phase manipulator, the second input of which is connected to the output of the discrete signal input unit, the first mixer, the second input of which is connected through the frequency synthesizer of the first local oscillator to the output of the pseudo-random code generator, the amplifier of the first intermediate frequency and the first amplifier power, the output of which is connected to the input of the duplexer, the input / output of which is connected to an external antenna, the receiving device is made in the form of a second power amplifier, a second mixer, connected in series to the output of the duplexer, the second output of which is connected to the output of the pseudo-random code generator through the frequency synthesizer of the second local oscillator, an amplifier of the second intermediate frequency, the transceiver is made in the form of a series-connected synchronizer, a pseudo-random code generator, a carrier frequency synthesizer, a phase manipulator, the second output of which is connected to the output of the analog and discrete signals input unit, the first mixer, the second input of which is connected to the frequency synthesizer of the first local oscillator the output of the pseudo-random code generator, the first intermediate frequency amplifier, the first power amplifier, the duplexer, the input-output of which is connected to the built-in antenna, the second power amplifier, the second mixer, the second input of which is through the frequency synthesizer o the local oscillator is connected to the output of the pseudo-random code generator and the amplifier of the second intermediate frequency, connected in series to the output of the synthesizer by the frequency of the second local oscillator multiplier, a bandpass filter and a phase detector, the second input of which is connected to the output by the synthesizer with the frequency of the first local oscillator, and the output is connected to the input of the controller, actuators made with the possibility of transmitting information about violations of the rules of the road by vehicles and their registration numbers, and signaling devices are configured to receive the specified information, characterized in that each signaling device is equipped with an oscillating system tuned to the frequency ω _2i , a narrow-band filter, an amplitude detector , a threshold block and a key, and to the output of the second power amplifier, an oscillatory system tuned to the frequencies ω _2i , a narrow-band filter, an amplitude detector, a threshold block and a key, the second in the path of which is connected to the output of the amplifier of the second intermediate frequency, and the output is connected to the second input of the multiplier, each actuator is equipped with an oscillating system tuned to the frequencies ω _1i , a narrow-band filter, an amplitude detector, a threshold block and a key, and the power is connected in series to the output of the second amplifier an oscillatory system tuned to frequencies ω _1i , a narrow-band filter, an amplitude detector, a threshold block and a key, the second input of which is connected to the output of the amplifier of the second intermediate frequency, and the output is connected to the second input of the multiplier.

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