SU1674212A1 - Traffic control device - Google Patents

Abstract

The invention can be used to control and control urban traffic. The purpose of the invention is to improve the speed of the device by turning on the comparators 5, 8 and the information processing units 2, 9 at the control point and the moving means. The output of the request 6 signal at the mobile means is connected to the input of the comparator 8 of the mobile means, in which the duration of the useful signal is selected. The information processing unit 9 decrypts the request signal and generates a response message, which with the aid of the transmitter 7 of the code combination is transmitted to the receiver 5 of the code combination of the control point. The choice of the high operating frequency of the receiving-transmitting units (~ 800 MHz) and the selection of the received signals by the duration allow the exchange of information between the control point and the mobile device during the first communication cycle. 7 il.

Description

Mobile vehicle (PS)

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The invention relates to automated systems for the identification of mobile vehicles, the control and management of their movement, and can be used, in particular, to control and monitor the movement of urban transport.

The purpose of the invention is to increase the speed of the device,

FIG. 1 shows a functional diagram of the device for monitoring and controlling transport; in fig. 2 - comparator diagram; in fig. 3-5 - algorithms of work of blocks 2 and 9 of information processing; in fig. 6 shows the format of information packages through which information is transmitted by a control point and a mobile means; in FIG. 7 - timing charts of signals in the transmission and reception of information between the control point and the moving means.

The device contains at the control point (CP) a data transmission unit 1, an information processing unit 2, a comparator 3, a request signal transmitter 4, a code combination receiver 5, a request signal receiver 6 at a mobile facility, a code combination transmitter 7, a comparator 8, information processing unit 9.

The comparator 3, located at the control point and the comparator 8, located on the mobile vehicle, are made the same. The comparator contains the element 10 delay, the one-shot 11, the element And 12.

Blocks 2 and 9 of information processing are made on an electronic computer of the type Electronics 60M.

The device works as follows.

After turning on the device, information processing unit 2 generates the first request message (ES) No. 0. The output signal of information processing unit 2 in the form of consecutive informational sendings (Fig. 7a) is sent to the request signal transmitter 4. By using a modulator and a high frequency generator of the transmitter 4, the information parcels are converted into an amplitude-modulated signal (Fig. 7) at a frequency of 815 MHz, which is radiated by the antenna of the transmitter 4.

After the issuing of AP No. 0, the information processing unit 2 switches to the waiting mode for a response message (OS) from the MS. If in zone KP PS No. 0 is absent, there will be no reception N ° 0, and information processing unit 2 issues the next one according to CS circuit No. 1 (Fig. 3). If there is not a single PS in the control zone, then continuous sequential occurs.

the cycle of formation and emission of n request messages with the subsequent repetition of these cycles.

When a mobile unit appears in the control unit zone, let's say PS No. K its antenna perceives a CS signal N K that passes through a narrowband (815 + 10 MHz) filter, high frequency amplifier, detector, video amplifier, receiver 6 of the request signal and as a code combination pulse signals of standard amplitude (Fig. 7d) are fed to the inputs of the delay element 10 and the one-shot 11 comparator 8. Simultaneously with the signal of CS No. K, the receiver 6 receives industrial interference signals. The spectral components of the interference that fall into the filter passband pass through the paths of receiver 6 and also arrive at the input of the comparator 8.

The duration of the I pulse signals for the frequency components of the interference emitted by the input filter of the receiver 8 is; (1-10) the ISS.

The single-oscillator 11 will be triggered by positive voltage drops of both code information packages and interference pulses, which, due to the nonstationarity of the repetition period, can occur at time intervals corresponding to the zero level of code packages (Fig. 7c, d)

After starting, the one-shot 11 produces, at its output, negative-polarity pulses with a duration of g 15 15 μs, which is certainly greater than the maximum possible duration of the interference pulses of g / 1.

Pulses of CS and interference from the terminal 10 delay and pulses from pryg. the one-shot 11 is supplied respectively to the first and second inputs of the element / 112.

Only request message pulses will pass to the output of this circuit (with shortening along the leading edge by -t °), the duration of which is much longer than rj The interference pulses have a duration less than duration t and cannot pass to the output of the And 12 element, as a result the device becomes immune to the effects of industrial interference, reliable information is already over the first communication cycle, re-radiation of the ES is not required, and the throughput of the device increases due to this

Code parcels of ES Nfc K, which do not contain interference (Fig. 7 d), are fed to the input of the information processing unit 9.

On the front of the first pulse of the CS code parcel, the information processing unit 9 operates in the AP analysis mode in accordance with the algorithm (Fig. 5).

When a code parcel of CS No. K coincides with the code number of the MS, the information processing unit 9 generates a response message (OS) in the form of consecutive information packets that arrive at the input of the transmitter 7. After the OS is formed, the information processing unit 9 goes into the message-indication mode (SU ) from KP.

The passage of the OS signals from the output of the information processing unit 9 through the transmitter 7, the receiver 5, the comparator 3 to the input of the information processing unit 2 is similar to the above described passage of CS No. K, due to the complete identity of the hardware of the receivers 5 and 6, transmitters 4 and 7 and Comparators 3 and 8 KP and PS.

In the information processing unit 2, the serial OS information parcels are converted into a parallel code and, according to the algorithm (FIG. 4), the code of the second OS is compared with the ES codes, and if they match, the received information is processed in real time, including Conformity previously entered into the information processing unit 2 of the schedule of the PS movement.

After storing the processing results, the information processing unit 2 conducts through the data transmission unit 1 the exchange of information with the central dispatching station (DPC) and generates message-indication (SU) signals for the PS driver, which includes data on the performance of the calculated schedule: normal, fast, slow and, if necessary, operational instructions from the CDS (change of route, electronic calling drivers, etc.).

The passage of signals from the SS to the SS is analogous to the passage of signals from the ZS. The information processing unit 9 decrypts instructions sent to the SU and sends them to the indicator. This completes the information exchange between the control unit and PS No.K. The information processing unit 2 proceeds to the formation of the SS Ghkch, etc.

If there are several mobile vehicles in the control area at the same time. K, K - (I, K + m ... (yy)), the algorithm of the device operation does not change, at the expense of blocks 2 and 9, the mode of forced sequential polling and information exchange between KP and mobile means in order to increase them is provided code numbers K. K, K - m. (m I). Moreover, since the formation of response messages of the MS occurs only to its own request number, it is impossible to simultaneously emit OS signals from the MS in the control zone and thereby exclude the possibility of the receiver 5, comparator 3 and unit 2 gearbox device from collecting Corollary synchronous signals caused by the imposition of information. The ability to maintain service in the CP area several substations and rapid exchange with CDS increases the capacity of the device.

With a code information transfer rate of 4800 bps, a KP device allows one-time detection and service in 1 s to 30-50 PS, simultaneously located in the KP zone, with a total number of monitored fleet of 1000 PS and more. At the same time, in the radius of the zone of action KP 30-50 m, the monitoring and control of the substation is provided both in an arbitrary stationary position and during the movement of the substation in the zone of the propulsion. those. on the aisle

The ES request message, the OS response message and the SS indication message in the device are transmitted in the form of consecutive start-stop packets (SIR) (Fig. B). One information element (IE) has a duration of 200 µs and corresponds to one bit of information. The value 1 in the IE corresponds to the presence of a command, and the value On the absence of a command. Each CS and OS are transmitted to two MTPs. and the message is an indication of one MTP.

The composition of the AP. OS, SU and IESSP values are given in the table. Sign (1–3) of the IE transmits the sign of the ERP, the value of the first ERP of the ES is 000. The value of the second ERP of the ES is 100, the first and the second ERP of the RS are 010, 110, 8) IE of both SSP ES and OS are transmitted respectively (0-4) and (5-9) bits of the number codes of the requested and answered PS. With a 10-bit code of PS numbers, control of 1024 PS is provided.

The following commands are transmitted to (4-6) CPS CI CI: normally slow, normally, n (7–8) CI operational instructions with DPS

In blocks 2 and 9 of information processing, the mandatory monitoring of signs (1-3) of the ERPs is deducted.

If the sign of the received message is different from the expected sign provided by the operation algorithm, blocks 2 and 9 do not accept such a message. This allows using. the same fixed frequency 8 15 MG c for dm.

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Monitoring the signs of IE completely eliminates the mutual influence of PS, which are in the range of their receiving-transmitters.

Work at a fixed frequency allows for a complete unification of the hardware of the device at the gearbox and joint venture.

The abandonment of the principle of spatial selection, the transition to operating frequencies in the 800 MHz region allowed us to simplify the antennas, i.e. eliminate time-consuming work on the equipment of magnetic antennas.

Claims (1)

Invention Formula A device for monitoring and controlling transport, containing a code combination receiver and a request signal transmitter at the test point, a request signal receiver and a code combination transmitter at the mobile facility, characterized in that, in order to increase the speed of the device, The composition of messages and the value of information elements (IE) start-stop parcels (SSP) Sign of the 2nd SSP ZS Code of the number of the requested PS Vtora 1 0 0 5p 6p / r 8p 9r SSP ZS Response message from PS to CP OS The sign of the 1st SSP OSKodnomera responded PS 01 0Or1r 2r Zr Ar The sign of the 2nd SSP OSKodnomera responded PS 11 05р6р / р 8р 9р Sign of SU SU A comparator, an information processing unit and a data transmission unit are introduced at the control point, a comparator and an information processing unit are used on a mobile device, the output of the code pattern receiver is connected to the comparator input of the control point whose output is connected to the input of the information processing block of the control point whose first output is connected with the transmitter input of the request signal, the second output of the control information processing unit is connected to the input of the data transmission unit, the output of which is the information output home device, the request signal receiver output coupled to an input of comparator movable means whose output is connected to the movable means input information processing unit, whose output is connected to the input codeword transmitter. replied PS 2p sp ar replied PS / r 8r 9r Quick Specification of VAT from 111 First SSP OS Second SSE OS The first SSP SU P omS, 8 (Nachopo PS Survey Cycle) (, - 4.5 + 5, Oms Waiting for OS with № and ti: g I h I Calculation of deviation from decanter (norm, backlog, advance) Formation for / giving SU The issuance of CA with №n + 1 Reading and decoding OS   control by co-ownership and nz trait ЈC  Yes Comparison №K in ES with №VOS Yes Enter current time ± Comparison with the established motion carafe Nk. Calculation Data for VTS (npu5tjimue}, deviation from carafe in min) BUT. Formation of peace in oi dachas , not on cds Fy with Start z Expectation Reading and decoding of CS Iontrol by coincidence of the sign of ES , No Grass is not nos zs with the course of the NZ on the switching field & lka - L OS formation and dacha F Waiting for Soooo & Shcheni SU Acceptance of SU. Reading and decoding of SU Iontrol 7io condominium recognized su Memorization and indication indications I Reset Indication FIG. five ) Not Not not not Hem ogo - - No-itorption zlepenty-zp-elepent npoSepxu on parityTop parity type addition to oddness FIG. 6 Log FROM | Start A LNT o / | 0 in and Q signal AT R . Log.1 I Log.o1 SE-stop elements  I ABOUT ABOUT