CN111812491A - Monitoring system for relays of rail transit system equipment - Google Patents

Abstract

The invention discloses a monitoring system of a relay for rail transit system equipment, which comprises a switch quantity acquisition machine, a direct current power supply, a switch quantity acquisition machine and a maintenance support system station machine, wherein the relay can comprise an idle joint and a half joint, the maintenance support system station machine is in communication connection with the switch quantity acquisition machine, an acquisition port of the switch quantity acquisition machine is electrically connected to the idle joint and used for acquiring the switch quantity of the idle joint, the direct current power supply is used for supplying power to the idle joint, and the switch quantity acquisition machine is respectively electrically connected to the switch quantity acquisition machine, the direct current power supply and the half joint through different terminals and used for isolating the half joint and the switch quantity acquisition machine. According to the monitoring system for the relays of the rail transit system equipment, the action time sequence of each relay of the rail transit system equipment can be accurately monitored in real time, so that reliable information guarantee is provided for diagnosis, analysis and treatment of equipment faults.

Description

Monitoring system for relays of rail transit system equipment

technical field

The invention relates to the monitoring of relays, in particular to a monitoring system for relays of rail transit system equipment.

Background technique

In urban rail transit, turnouts, screen doors and other key trackside signaling equipment are the focus of daily maintenance by the maintenance department. At present, the main maintenance method mainly relies on frequent daily maintenance and inspection to reduce the probability of failure. When a failure occurs, there are few technical means to assist failure analysis, and mainly rely on more experienced signal engineers to diagnose and analyze the failure. , the efficiency is relatively low, which is not conducive to fault analysis and resolution in emergency situations. If the action sequence of each relay of these trackside key signal equipment can be monitored in real time and accurately, it will provide reliable information guarantee for fault diagnosis, analysis and disposal, and help to maintain various rail transit systems efficiently. equipment.

Therefore, there is an urgent need to design a monitoring system for relays of rail transit system equipment that can provide assistance for maintenance, fault diagnosis, analysis, and processing of rail transit system equipment.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to propose a new relay for rail transit system equipment in order to overcome the defects of insufficient auxiliary means for maintenance and fault handling of the existing rail transit system equipment and unable to provide sufficient technical support. Monitoring System.

The present invention solves the above-mentioned technical problems by adopting the following technical solutions:

The invention provides a monitoring system for relays of rail transit system equipment, which is characterized in that the monitoring system includes a switch quantity collector, a DC power supply, a switch quantity collector and a maintenance support system station, and the relay is At least a first part of the relay includes an empty contact, at least a second part of the relay includes a half contact, the maintenance support system station is communicatively connected to the switch value collector, and the collection port of the switch value collector is electrically connected to the the empty contact and is configured to be able to collect the switching value of the empty contact, and the DC power supply is configured to be able to supply power to the empty contact;

Wherein, the switch value collector is electrically connected to the switch value collector, the DC power supply and the half-contact through different terminals, and is configured to be able to isolate the half-contact and the switch value collector .

Preferably, the digital value collector has a first coil and a second coil that are insulated from each other and have mutual inductance, a power supply terminal that is electrically connected to the DC power supply, and a terminal that is electrically connected to the collection port of the digital value collector. an output terminal, and a pair of collecting terminals respectively electrically connected to the middle contact and the lower contact in the half contacts;

Wherein, the power terminals are the two ends of the first coil, the collection terminals are the two ends of the second coil, and the upper contact and the middle contact of the half contacts constitute the signal circuit of the rail transit system equipment. A part of the collecting terminals is short-circuited when the middle contact and the lower contact of the half contacts are engaged.

Preferably, the signal circuit of the rail transit system equipment includes an upper contact, a middle contact and a control power supply among the half contacts.

Preferably, the relay is a railway signal safety relay, and the railway signal safety relay includes multiple sets of contacts, and the multiple sets of contacts include empty contacts and half contacts.

Preferably, the maintenance support system station machine and the switch value collecting machine respectively have network interfaces, and the two are connected to each other via the network interfaces.

Preferably, the collection port and the DC power supply of the switch value collector are respectively connected to the empty contact via a conductive cable, and the switch value collector is connected to the switch value collector, the DC power supply and the half-contact.

Preferably, the switching value collecting machine is configured to collect the switching value of the empty contact every preset collection period and transmit the collected switching value of the empty contact to the maintenance support system immediately. Station machine.

Preferably, the collection period is not longer than 200 milliseconds.

Preferably, the maintenance support system station is configured to record the action sequence of each of the relays according to the received switching value of the empty contact of each of the relays.

Preferably, the monitoring system further includes an interlock system configured to drive and retrieve the action state of each of the relays, and the maintenance support system station is further configured to record the actions of each of the relays. The timing sequence is compared with the action state of each of the relays obtained by the interlocking system, and an alarm is issued when the comparison results are inconsistent.

On the basis of conforming to common knowledge in the art, the above preferred conditions can be combined arbitrarily to obtain preferred examples of the present invention.

The positive progressive effect of the present invention is:

According to the monitoring system for the relays of the rail transit system equipment of the present invention, the action sequence of each relay of the rail transit system equipment can be monitored in real time and accurately, thereby providing reliable information guarantee for the diagnosis, analysis and disposal of equipment faults. , which is helpful for efficient maintenance of various rail transit system equipment.

Description of drawings

1 is a system block diagram of a monitoring system for relays of rail transit system equipment according to a preferred embodiment of the present invention.

2 is a schematic diagram of a monitoring system for relays of rail transit system equipment according to a preferred embodiment of the present invention.

Detailed ways

The preferred embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. The following descriptions are exemplary rather than limiting of the present invention, and any other similar situations will also fall within the protection scope of the present invention.

In the following detailed description, directional terms, such as "left", "right", "upper", "lower", "front", "rear", etc., are used with reference to the directions described in the drawings. Components in various embodiments of the invention may be oriented in a variety of different orientations, and directional terminology is used for purposes of illustration and not limitation.

Referring to Figures 1-2, according to a preferred embodiment of the present invention, a monitoring system for relays 4 of rail transit system equipment, the monitoring system includes a switch quantity collector 1, a DC power supply 2, a switch quantity collector 3 and a maintenance Supporting the system station 5, some relays 4 include empty contacts 41, and some relays 4 include half contacts 42, and some relays 4 may also include empty contacts 41 and half contacts 42. The maintenance support system station 5 is communicatively connected to the switch quantity collector 1, the collection port of the switch quantity collector 1 is electrically connected to the empty contact 41 and is configured to be able to collect the switch quantity of the empty contact 41, and the DC power supply 2 is configured to be able to send to the empty contact 41. The empty contact 41 supplies power.

The switch value collector 3 is electrically connected to the switch value collector 1 , the DC power supply 2 and the half contact 42 through different terminals, and is configured to be able to isolate the half contact 42 and the switch value collector 1 .

According to some preferred embodiments of the present invention, the digital value collector 3 has a first coil and a second coil that are insulated from each other and have mutual inductance, a power terminal electrically connected to the DC power supply 2 , and a an output terminal, and a pair of collecting terminals respectively electrically connected to the middle contact and the lower contact in the half contacts 42;

Among them, the power terminals are the two ends of the first coil, the collection terminals are the two ends of the second coil, the upper contact and the middle contact in the half contact 42 constitute a part of the signal circuit of the rail transit system equipment, and when the half contact 42 is in the signal circuit When the middle contact and the lower contact are connected, there is a short circuit between the acquisition terminals.

The relay 4 is a railway signal safety relay 4 , and the railway signal safety relay 4 includes multiple sets of contacts, and the multiple sets of contacts include an empty contact 41 and a half contact 42 . Each set of contacts can have upper, middle and lower contacts. When the relay 4 is picked up, the upper and middle contacts are closed, and when the relay 4 is dropped, the middle and lower contacts are closed. The acquisition method adopted by the maintenance support system in the railway signal system can be to send the DC power supply 2 such as 12V inside the maintenance support system itself to the The middle contact of the relay 4, when the relay 4 picks up or falls, is sent back to the digital collector 1 through the upper or lower contact. The port of the switch 1 can directly input 12V DC.

The switch value collector 3 configured here actually plays the role of an isolation device. When there is a signal cable wiring in the contact of the relay 4, the DC power supply 2 of the maintenance support system cannot be connected to this contact in parallel, otherwise it will When mixed electricity occurs, it will affect the relay circuit and cause a driving accident in severe cases. The input end of the switch value collector 3 is isolated from its own working power supply. The input end has two terminals, which can be connected to the middle contact of the relay 4 and another empty contact 41 without wiring. Since the two power supplies do not interfere with each other, so It will not affect the relay circuit. If the contact of relay 4 is closed, the switch value collector 3 will output the working 12V positive power and connect it to the switch value collector 1. The switch value collector 3 only plays the role of isolation, and does not directly collect the device status.

According to some preferred embodiments of the present invention, the signal circuit of the rail transit system equipment may include an upper contact, a middle contact and a control power supply (represented by “KZ” in FIG. 2 ) of the half contacts 42 .

According to some preferred embodiments of the present invention, the maintenance support system station 5 and the switch quantity collector 1 respectively have network interfaces, and the two are connected to each other via the network interfaces.

According to some preferred embodiments of the present invention, the collection port of the digital collector 1 and the DC power supply 2 are respectively connected to the empty contact 41 via conductive cables, and the digital collector 3 is connected to the digital collector 1, DC power supply 2 and half contact 42 .

According to some preferred embodiments of the present invention, the digital value collecting machine 1 is configured to be able to collect the digital value of the empty contact 41 every preset collection period and instantly transmit the collected digital value of the empty contact 41 to the maintenance support system Station 5.

According to some preferred embodiments of the present invention, the acquisition period is not longer than 200 milliseconds, such as 100 milliseconds, thereby substantially enabling real-time monitoring.

According to some preferred embodiments of the present invention, the maintenance support system station 5 is configured to record the action sequence of each relay 4 according to the received switching value of the empty contact 41 of each relay 4 .

According to some preferred embodiments of the present invention, the monitoring system further includes an interlock system configured to drive and retrieve the action state of each relay 4 , and the maintenance support system station 5 is further configured to record the recorded actions of each relay 4 . The time sequence is compared with the action state of each relay 4 obtained by the interlocking system, and an alarm is issued when the comparison results are inconsistent. For example, when the action response time of a relay 4 in the signal circuit is gradually prolonged over time, the system may monitor this phenomenon and give early warning information.

According to some preferred embodiments of the present invention, the monitoring system can also be configured to display the real-time status of each relay 4 on the maintenance support system station 5 in the form of a graph. Further preferably, the monitoring system can also be configured to be able to display the signal circuit drawing on the maintenance support system station 5, and the state of each relay 4 in the drawing can be changed in real time according to the state of the relay 4 collected by the current system, when the circuit is connected. , the currently connected circuit is highlighted on the electronic drawing.

Although specific embodiments of the present invention have been described above, those skilled in the art will understand that these are merely illustrative and the scope of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, and these changes and modifications all fall within the protection scope of the present invention.

Claims (10)

1. a monitoring system for the relay of rail transit system equipment, is characterized in that, described monitoring system comprises switch quantity collector, DC power supply, switch quantity collector and maintenance support system station machine, at least in described relay; The first part includes an empty contact, at least the second part of the relay includes a half contact, the maintenance support system station is communicatively connected to the digital value acquisition machine, and the acquisition port of the digital value acquisition machine is electrically connected to the empty contact The contact is configured to be able to collect the switching value of the empty contact, and the DC power supply is configured to be able to supply power to the empty contact; Wherein, the switch value collector is electrically connected to the switch value collector, the DC power supply and the half-contact through different terminals, and is configured to be able to isolate the half-contact and the switch value collector . 2 . The monitoring system according to claim 1 , wherein the switch value collector has a first coil and a second coil that are insulated from each other and have mutual inductance, a power supply terminal electrically connected to the DC power supply, and a power supply terminal electrically connected to the DC power supply. 3 . an output terminal of the collection port of the switch value collection machine, and a pair of collection terminals respectively electrically connected to the middle contact and the lower contact of the half contacts; Wherein, the power terminals are the two ends of the first coil, the collection terminals are the two ends of the second coil, and the upper contact and the middle contact of the half contacts constitute the signal circuit of the rail transit system equipment. A part of the collecting terminals is short-circuited when the middle contact and the lower contact of the half contacts are engaged. 3 . The monitoring system according to claim 2 , wherein the signal circuit of the rail transit system equipment comprises an upper contact, a middle contact and a control power supply among the half contacts. 4 . 4 . The monitoring system according to claim 1 , wherein the relay is a railway signal safety relay, and the railway signal safety relay comprises multiple sets of contacts, and the multiple sets of contacts include empty contacts and half contacts. 5 . 5 . The monitoring system according to claim 1 , wherein the maintenance support system station machine and the switch value collecting machine respectively have network interfaces, and the two are connected to each other via the network interfaces. 6 . 6 . The monitoring system according to claim 1 , wherein the collection port of the switch value collector and the DC power supply are respectively connected to the empty contact via a conductive cable, and the switch value collector is respectively connected to the empty contact via a conductive cable. 7 . The conductive cable is connected to the switch value collector, the DC power supply and the half-contact. 7. The monitoring system according to any one of claims 1-6, characterized in that, the switch value acquisition machine is configured to be able to collect the switch value of the empty contact every preset collection period and then collect the switch value of the empty contact. The collected switching value of the empty contact is immediately transmitted to the maintenance support system station. 8. The monitoring system of claim 7, wherein the collection period is not longer than 200 milliseconds. 9 . The monitoring system according to claim 7 , wherein the maintenance support system station is configured to record the action sequence of each of the relays according to the received switching value of the empty contact of each of the relays. 10 . . 10. The monitoring system according to claim 9, characterized in that, the monitoring system further comprises an interlock system configured to be able to drive and retrieve the action state of each of the relays, and the maintenance support system station is also It is configured to compare the recorded action sequence of each of the relays with the action state of each of the relays retrieved by the interlocking system, and issue an alarm when the comparison results are inconsistent.

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