RU2411151C2 - Contactless code track redundant transmitter (cctrt) - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to railway ACS and serves to generate code (pulsed) combinations of automatic continuous locomotive signaling digital codes, digital code interlocking signals and transmitter relay control signal to encode track circuits. Transmitter incorporates power supply, master oscillator and start control module connected to code sequence generator, outputs of aforesaid devices being connected to output of input gates module. Control signals come from output of said generators to comparator circuitry modules. Comparator circuit module I/O is connected with master oscillator and start control module I/O connected with module of diagnostics data generation and signal level matching module. Signal INTEST comes from one of code sequence generators to input gates module input to control input gates module serviceability control circuits. Then, transmitter relay and electronic gate control signals come to comparator circuit module along with control frequency that allows dynamic operation of control circuit. Control circuit output is connected to serviceability analyser input to control diagnostics input of diagnostics data generation module.

EFFECT: higher reliability and safety of said track hardware.

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Description

The invention relates to railway automation and is intended for the formation of code (pulse) combinations of the numerical code of the Automatic Locomotive Signaling of Continuous Operation (ALSN) and the Numeric Code Blocking (CCB) and the management of transmitter relays encoding rail circuits.

The prior art railway locomotive signal transmitter for transmitting a locomotive signal for reception by a railway vehicle. The locomotive signal is encoded at a preselected frequency so that the resonant circuit operates in conjunction with a code-shaping signal to act as a constant current signal source. The reduction of the maximum rail flow of the locomotive signal was achieved, thereby mitigating the flow of the locomotive signal, which could be available for reception by the following trains (US 5330134, 07/19/1994).

The disadvantage of this system and method is its low reliability, and there is no possibility of redundancy and a built-in electronic key that excludes sparking on the contacts when switching the transmitter relay.

A known code transmitter containing two pulse shapers, an adder modulo two, two output blocks, two comparison units, the transmitter operating outputs, three control triggers, three OR elements, two frequency dividers, three adders modulo two, two blocks of optical keys, two dynamic elements AND, a block of dynamic elements AND, three triggering elements interconnected by dynamic inputs, two counting triggers interconnected by installation inputs, three amplifiers, two neutral relays with their coils and by making contacts, a coil and two contacts of a polarized relay, a button, two poles of a power supply, test leads, a relay switchover to reserve, inputs for connecting a reserve, conclusions for choosing the duration of code cycles, each of the latter is connected to the first input of the first and second pulse shapers, respectively ( RU 51317, 01.27.2006).

This transmitter does not eliminate the above disadvantages.

From copyright certificate No. 1339883, published. 09/23/1987 a code transmitter is known that contains a pulse generator, a signal relay block, two pulse shapers, five comparison blocks, three triggers, two output blocks, a one-shot, an inverter and an adder modulo two.

The disadvantage of this transmitter is its complex design, low reliability and the lack of redundancy and a built-in electronic key that excludes sparking on the contacts when switching the transmitter relay.

In the author's certificate No. 632085, 05/05/1978, a code transmitter is described that contains a stabilizing unit connected in series, a pulse generator, a pulse distributor, an output unit, a signal relay, the output of which is connected to another input of the pulse distributor, a control unit consisting of an auxiliary connected in series the distributor and the comparison element, and the output of the signal relay is connected to the input of the auxiliary distributor, the other input of which is connected to the output of the pulse generator, p In this case, the output of the pulse distributor is connected to another input of the comparison element, the output of which is connected to another input of the pulse generator.

However, this transmitter does not eliminate the above disadvantages, it does not have a built-in electronic key that excludes sparking on the contacts when switching the transmitter relay and the possibility of redundancy.

The objective of the invention is to provide a non-contact code reserve waypoint transmitter (BKPT-R) that provides a technical result consisting in increasing the reliability and safety of ALSN track equipment by using modern element base, modern manufacturing technology, a high degree of noise immunity, eliminating the occurrence of sparks when switching transmitter relay, automatic exclusion from the system in case of failure and the possibility of redundancy.

The indicated technical result is achieved in a contactless redundant code path transmitter (BKPT-R) containing a power supply, a master oscillator and a start control module, the output of which is connected to the inputs of the code sequence generators, the inputs of which are connected to the output of the input key module, and the outputs of the code generators control signals to the inputs of the module of the comparison circuit, the input-output of which is connected by the input-output of the master oscillator module and the control and the outputs of which are connected to the inputs of the diagnostic information generation module and the signal level matching unit, designed to link low levels of information signals with external output circuits and having two channels operating in parallel and the outputs of which are connected to the key, while the outputs of one from the code sequence generator, an INTEST signal is received at the input of the input key module, which controls the health control circuits of the input key module, and the inputs of the CPA circuit module The control signals the transmitter relay and the electronic key and the control frequency, which ensures the dynamic operation of the control circuit, the output of which is connected to the input of the health analyzer, which controls the diagnostic output of the diagnostic information generation module and, if there is an output of the node matching the signal levels of a dynamic signal of a given level with a key ensures its passage to the output of the transmitter, and in the absence of a diagnostic signal, connects the output ransmittera to enter a backup transmitter.

The drawing shows a structural diagram of BKPT-R.

BKPT-R is a finished product with the ability to connect a backup kit, which allows replacement of KPTSh-515, KPTSh-715 motor transmitters and BKPT-5, BKPT-7, BKPT-U, BKPT-UM contactless transmitters.

To replace existing transmitters with this product, a change in installation at the installation site is required. It is located in relay cabinets of automatic blocking and on cabinets of electric centralization.

BKPT-R includes the following modules: power supply 1; input key module 2; two shapers of code sequences 3 and 4; master oscillator and start control module 5; comparison (control) scheme 6; node matching signal levels 7; module for generating diagnostic information 8; arbiter (health analyzer) 9; key 10 - switch to the backup set.

The power source 1 provides power to all electronic modules BKPT-R by converting the mains voltage of alternating current 220 V 50 Hz into the required values of DC voltage. Power formers 3 and 4 are galvanically isolated.

The input key module 2 is designed to process information from external code selection circuits and generate signals corresponding to the selected code. The input key module 2 includes a circuit for checking its own health and, when the input keys are healthy, generates an OUTTEST signal.

Shapers 3, 4 operate in parallel and are designed to generate code sequences for control signals of a transmitter relay (VUTR) and a built-in electronic key (V EC) based on information received from the input key module 2. Built-in electronic keys are designed to prevent sparks on the contacts transmitter relay during its switching. In addition, each shaper has an output of the control signal CT, which is the result of the dynamic merging of the signals of the internal control points of the shaper.

The master oscillator and trigger control module 5 is designed to generate a master frequency signal Fg, providing dynamic operation of the BKPT-R, and to generate control signals for triggering the comparison circuit (K) depending on its state.

The comparison (control) circuit 6 is intended to determine the equivalence of the control signals of the CT coming from the shapers of the code sequences 3 and 4, and to ensure that the signals of the VUTR and the VEC are skipped if the signals of the CT are equivalent and when the input key module 2 is in good condition.

The coordination unit 7 is intended for linking low levels of information signals with external output circuits and includes two channels operating in parallel, each of which contains a VEC and a VUTR.

The module for generating diagnostic information 8 is used to provide dispatch control devices with information about the status of BKPT-R.

The arbiter 9 determines the status of the BKPT-R and controls the key 10, which in case of failure of the BKPT-R switches external devices to the backup BKPT-R.

Work BKPT-R.

Turning on the power determines the start of the master oscillator module and the start control 5, which drives the drivers 3 and 4. The drivers 3 and 4 generate VEC and VUTR signals, the information content of which depends on the signals coming from the input key module 2. In addition, the drivers 3 and 4 generate signals INTEST (controlling the health monitoring circuits of the input key module 2), CT1 and CT2 (obtained by mixing dynamic controlled signals), the control frequency Fk, which ensures the dynamic operation of the circuit to ntrolya. After a specified time, the master oscillator and start control module 5 generates a start signal to the comparison circuit 6. Given the equivalence of the signals KT1 and KT2 received in the comparison circuit 6 from the shapers 3 and 4, and with a positive analysis of the OUTTEST signal supplied to the comparison circuit 6 from the module input keys 2, the comparison circuit 6 is started (translated into working condition). This means that the VEC and VUTR signals generated by the driver 3 (the first driver) are passed by the comparison circuit 6 to the input of the signal level matching node 7. The VEC and VUTR signals generated by the second driver 4 are not used, since the second driver 4 is used only for comparison the parameters of its operation with the parameters of the first driver 3. The failure of any of the drivers, as well as the breakdown of an element of the input key module 2, determines the failure of work with a time limit for automatic restart of the circuit module comparison 6. In the event of a mismatch of signals KT1 and KT2 of a certain duration, the operation of the comparison circuit 6 is automatically disrupted (it is transferred to a stable inoperative state), which blocks the passage of signals. In this case, the master oscillator and start control module 5 with a certain frequency generates restart signals for a given time. If during this time the comparison circuit 6 did not start, the product is excluded from the system, it will only be possible to restart it if the operator performs certain actions. When the operating state of the comparison circuit 6, the signals from its output are fed to the input of the node matching the signal levels 7.

If there is an output of the node matching the signal levels 7 of the dynamic signal of a given level, the arbiter 9 through the key 10 ensures its passage to the output BKPT-R. In the absence of a diagnostic signal of an accident, the arbiter 9 connects the output of the BKPT-R to the output of the backup set BKPT-R. In addition, the arbiter 9 controls the diagnostic output of the diagnostic information generation module 8, the state of which reflects the health of the BKPT-R.

This invention improves the reliability, safety, noise immunity, and also allows to provide ergonomic qualities of encoding devices for CKB and for ALSN and to increase the period of technological maintenance during operation.

Claims (1)

A non-contact directional code transmitter, containing a power source, a master oscillator and start-up control module, the output of which is connected to the inputs of the code sequence generators, the inputs of which are connected to the output of the input key module, and control signals to the inputs of the comparison circuit module are received from the outputs of the code sequence generators, the input-output of which is connected by the input-output of the module of the master oscillator and the start control and whose outputs are connected to the inputs of the module diagnostic information and a node matching signal levels, designed to link low levels of information signals with external output circuits and incorporating two channels operating in parallel and the outputs of which are connected to a key, while the outputs of one of the shaper code sequences to the input of the module the input key receives the INTEST signal, which controls the health monitoring circuits of the input key module, and the transmitter control signals are sent to the inputs of the comparison circuit module e and an electronic key and the monitoring frequency, which ensures the dynamic operation of the monitoring circuit, the output of which is connected to the input of the health analyzer, which controls the diagnostic output of the diagnostic information generation module and, if the output of the node matches the signal levels of a dynamic signal of a given level through the key, ensures its passage to the output transmitter, and in the absence of a diagnostic signal, connects the output of the transmitter to the output of the backup transmitter.