RU2588286C2 - Method for diagnosis of locomotive equipment for automatic cab signalling and device therefor - Google Patents

Abstract

FIELD: safety systems.

SUBSTANCE: group of inventions relates to automatic cab signalling. Diagnostic technique for locomotive equipment automatic cab signalling (ACS) consists in the fact that additional diagnostic winding with inductive coupling with winding of the receiving coil ACS equipment cab is testing code signals and distortion of their interference. Diagnostic winding wound on not connected to receiving locomotive ACS separate magnetic conductor (inducer), which is mechanically fixed at the receiving coil ACS equipment so that the magnetic flux generated by diagnostic winding, absorbed through the receiving coil locomotive automatic signaling system. Device for diagnostics of locomotive equipment consists of a radio receiving device, manual control unit, a decoder of commands, ACS code signals generator with possibility of changing time parameters, noise generator, memory unit of actual ACS signal in track circuits, signal adder, power amplifier, an inductor, which serves for creation of electromagnetic field.

EFFECT: simplified diagnostics of locomotive ACS hardware.

3 cl, 1 dwg

Description

The invention relates to the field of railway automation, providing interval control of train movements, and is intended for diagnosing the technical condition of locomotive equipment for automatic locomotive signaling (ALS) and other locomotive signaling systems based on the principles of inductive transmission of code signals from rails to locomotive coils.

There is a method of conducting test measurements and tuning locomotive equipment ALS, using a stationary cable (closed loop) laid stationary along the rails and placed in a cable rack, electrical and measuring equipment for monitoring parameters and supplying code signals of interval regulation or a combination of them, for example, "Z" (green light of a traffic light), "Ж" (yellow light of a traffic light), "KZh" (yellow with red light of a traffic light) [1].

This method is used in the following devices - [2], [3], [4].

There is also a method of checking locomotive equipment ALS, which is used as an inductive loop, not stationary wires laid along the rails, but a portable frame with a certain number of turns [5].

A disadvantage of the known methods for diagnosing and verifying operability is the need to use a special inductive loop, which is either stationary installed near the running rails on the test site, or it is portable and installed directly under the receiving coils of the ALS. At the same time, diagnostics and operability testing of locomotive ALS equipment can be carried out only in stationary conditions, monitoring its technical condition when the locomotive is coupled to another locomotive or car, as well as when moving and maneuvering in the workshop, depot, and route, is fundamentally impossible.

The closest technical solution is the invention [6].

This technical solution does not use a fixed or portable ALS loop, and to induce electromotive force in the main winding of the receiving locomotive coil of the ALS, an additional galvanically isolated diagnostic winding is used, wound on the core of the magnetic circuit of the receiving locomotive coil of the ALS. Diagnostics of locomotive equipment ALS is carried out by applying test electric signals to the diagnostic winding.

The disadvantage of this method is the inability to diagnose the existing fleet of locomotive ALS equipment, since the ALS receiving coils currently used do not have an additional diagnostic winding, their modernization for the entire fleet of locomotives will require a very large investment of time and materials, and is not provided for by the existing design documentation .

The aim of the proposed method is the ability to diagnose standard locomotive equipment ALS without changing the design of the receiver coils of the ALS or other elements, in conditions as close as possible to the operating conditions, that is, in the presence of interference, temporary distortion of the useful signal, as well as real ALS code signals in the rail circuit , without using a fixed or portable ALS loop.

This goal is achieved by the fact that the diagnostic winding is wound on a separate open ferromagnetic core (inductor) that is not connected to the receiving coil, which is mechanically fixed for the time of the diagnostics on the receiving locomotive coil of the ALS so that the magnetic flux generated by the inductor is closed through the magnetic circuit of the receiving locomotive ALS coils, moreover, the level of output voltage from the receiving coils of ALS corresponds to the level of output voltage created by a standard ALS loop.

The proposed method for diagnosing locomotive ALS devices uses one or two identical receiving and actuating devices that are mechanically fixed for the duration of the diagnostics on the corresponding ALS receiving coils and using the built-in electronic circuit and inductor inductively transmit the ALS code signal to the winding of the ALS locomotive coil, in the first case one receiver is used, mounted on one of the receiver coils of the ALS, in the second case, two receiver are used GOVERNMENTAL devices, each of which is fixed to the respective coils ALS, and in both cases the level of the output voltage from the receiving coils ALS corresponds to the output voltage generated by a standard flex cable ALS thus obtained technical result is identical.

The operating modes of the receiving-executive devices are controlled using the control panel over the air or using the manual control units on the receiving-executive devices themselves.

The block diagram of the proposed device is shown in Figure 1.

Each of the receiving and executive devices consists of a radio receiving unit (1), a manual control unit (2), a command decoder (3), an ALS code signal generator with the ability to change time parameters (4), an interference generator (5), a real signal memory node ALS in rail circuits recorded in areas with a high number of failures of locomotive equipment ALS (6), adder (7), power amplifier (8), inductor (9), and in the receiving-amplifying device the output of the radio receiving unit (1) is connected to the first command decoder input (3), output b manual control is connected to the second input of the command decoder (3), one output of which is connected to the input of the ALS code signal generator (4), the output of which is connected to the first input of the adder (7), the second output of the command decoder (3) is connected to the input of the interference generator (5), the output of which is connected to the second input of the adder (7), the third output of the command decoder (3) is connected to the input of the memory node of the real ALS signals in rail circuits recorded in areas with a high number of failures of the locomotive equipment of the ALS (6), the output of which connected to tre im input of the adder (7), and the output of the adder is connected to the input of series-connected power amplifier (8) and the inductor (9) serving to create an electromagnetic field necessary for guidance of the electromotive force of the code signal in the receiving coil Repair locomotive ALS.

The device is able to work in the following modes:

1. Standard mode, similar to the normal mode of operation of the ALS test loop, characterized by a periodic change in the code combinations of the ALS signals.

2. Fixed mode, while the code combination corresponding to a specific ALS signal is constantly issued.

3. In turn, each of the above two operating modes can be transferred to the advanced diagnostics mode of the locomotive equipment of the ALS, in this case a signal is generated, characterized by the presence of distortions and / or interference in its composition,

- change in the time parameters of the code parcels, both in the positive direction and in the negative;

- work together with the jammer;

- work from the memory unit, which stores the real signal recorded from the receiving coils of the ALS, in conditions of locomotive travel to block sections where a high number of failures of the locomotive equipment of the ALS is noted.

For a comparative assessment of the stability of the locomotive equipment of the ALS, the magnitude of the change in the temporal parameters of the code messages and the level of interference can be changed both remotely from the control panel and manually, directly on the receiving-executive devices.

The economic efficiency of the proposed method for the diagnosis of locomotive equipment ALS due to the wider functionality compared to the prototype, which allows you to diagnose modern locomotive equipment ALS without making changes to the design of the receiving coils, in the presence of real noise and distortion of the ALS code signal, that is, as close as possible to operational working conditions, which will lead to a decrease in failures of locomotive equipment ALS, the consequence of which is tsya need for uncoupling the locomotive and its direction in the repair depot to verify the locomotive apparatus ALS, which leads to high material costs, disruption of the schedule of trains and reduce the level of traffic safety.

Information sources

1. Leonov A.A. Maintenance of automatic locomotive alarms. 5th Edition, revised. and add. M .: Transport, 1982, p. 217, 220.

2. The device UPR-ALSE designed to test the performance of the devices ALSN and ALS-EN installed on locomotive and motor-car rolling stock [Verification device UPR-ALSE. Technical description 38983-01-00 TO. 2000].

(Catalog of SamaraPribor LLC,

http://www.samarapribor.ru/main/1284999.html).

3. "Device for checking the operability of automatic locomotive signaling devices." RF patent No. 2333859. Published on September 20, 2008. IPC class B61L 25/06.

4. "Device for checking automatic locomotive signaling." RU 2070122 C1. Published on December 10th, 1996. IPC B61L 3/20.

5. UBF loopless device. Operation manual 36998-00-00 РЭ.

Information and description on the manufacturer’s website on the Internet - http://www.irz.ru/products/20/348.html.

6. “Diagnostic system for locomotive equipment of automatic locomotive signaling (ALS) and receiving locomotive coil”. RU 2383460. Published: 03/10/2010. IPC B61L 25/00.

Claims (3)

1. A method for diagnosing locomotive equipment of automatic locomotive signaling (ALS), which consists in the fact that an additional diagnostic winding having inductive coupling with the winding of the receiving locomotive coil of the ALS equipment is supplied with test code signals and distorting their interference, with the help of which the technical condition of the locomotive is determined ALS equipment, characterized in that the diagnostic winding is wound on a separate magnetic circuit (inductor) that is not connected to the ALS receiving locomotive coil, which at the time of diagnosis is mechanically fixed to the respective receiving coil Repair ALS so that the magnetic flux generated by the diagnostic winding is closed through the receiving coil locomotive automatic locomotive signaling. 2. A device that implements the method according to claim 1, transmitting inductively an ALS code signal to the winding of an ALS receiving locomotive coil, consisting of a radio receiving device, a manual control unit, a command decoder, ALS code signal generator with the possibility of changing time parameters, an interference generator, a node memory of real ALS signals in rail circuits recorded in areas with a high number of failures of locomotive ALS equipment, a signal adder, a power amplifier, an inductor used to create an electromagnet field required to induce electromotive force in the receiving coil of the locomotive equipment ALS corresponding to the transmitted code signal ALS, and in the receiving-amplifying device, the output of the radio receiver is connected to the input of the command decoder, the output of the manual control unit is connected to another input of the command decoder, one output of which connected to the input of the ALS code signal generator, the output of which is connected to the first input of the adder, the second output of the command decoder is connected to the input of the interference generator, the output of which is connected to the second input of the adder, the third output of the command decoder is connected to the input of the memory node of the real ALS signals in rail circuits recorded in areas with a high number of failures of the locomotive equipment of the ALS, the output of which is connected to the third input of the adder, and the output of the adder is connected to the input in series connected power amplifier and inductor. 3. The device according to claim 2, characterized in that to expand its functionality it is equipped with a connector to which an additional inductor is connected, mounted on another ALS receiving coil and allowing to diagnose ALS locomotive equipment through two receiving coils.

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