CN212134837U - Subway shielded door monitoring system - Google Patents
Subway shielded door monitoring system Download PDFInfo
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- CN212134837U CN212134837U CN202020339404.4U CN202020339404U CN212134837U CN 212134837 U CN212134837 U CN 212134837U CN 202020339404 U CN202020339404 U CN 202020339404U CN 212134837 U CN212134837 U CN 212134837U
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Abstract
The utility model provides a subway shielded door monitoring system, include: the shielding door signal acquisition module is used for acquiring a state signal of the subway shielding door; the lower computer is used for sending a control command to the shielded gate signal acquisition module and transmitting a signal acquired by the shielded gate signal acquisition module to the upper computer; the upper computer is used for interacting with the lower computer; the upper computer comprises a main controller, a data processing module, a database module, a data query module and a fault alarm module, wherein the main controller is respectively connected with the modules; the data processing module is used for processing the data of the status signal of the subway shielded door; the database module is used for storing various processed data; the data query module is used for calling and outputting the stored historical data from the database module; the fault alarm module is used for comparing and analyzing various data processed by the data processing module and normal working state data in real time, obtaining a signal abnormal result and outputting the signal abnormal result into an alarm signal.
Description
Technical Field
The utility model particularly relates to a subway shielded door monitoring system.
Background
The subway operation pressure is bigger and bigger along with the passenger flow volume increase in present city subway, and subway shield door system can protect passenger's safety effectively, when the shield door appears not linking, causes follow-up train night point very easily, and this kind of condition is along with the constantly shortening of subway operation time interval, and the frequency that the shield door broke down is higher and higher. The problem that current subway shield door exists at the operation in-process has: the number of relays is large, the fault is difficult to remove, the technical level of monitoring equipment is low, the fault phenomenon is difficult to reappear, and the subsequent fault is not easy to be cured; faults of coils, contacts and the like are not easy to find in advance, and hidden danger is not easy to eliminate; the failure emergency repair method for the working personnel is few and mainly depends on experience. Through on-site investigation, subway project parts in many places are not provided with subway shielded gate monitoring equipment in a matched mode, so that electric performance faults cannot be judged in advance before accidents occur, the accident causes cannot be traced after the accidents occur, electrical faults or mechanical faults cannot be distinguished correctly, and the operation equipment of the shielded gate cannot be maintained fast and accurately.
Disclosure of Invention
In order to solve the technical problem, an object of the utility model is to provide a subway shield door monitoring system can carry out real time monitoring to the status signal of subway shield door to realize functions such as malfunction alerting and troubleshooting of shield door control circuit. The technical scheme of the utility model is that:
a metro shielded door monitoring system comprising:
the shielding door signal acquisition module is used for acquiring a state signal of the subway shielding door and is connected with the lower computer;
the lower computer is used for sending a control command to the shielded gate signal acquisition module and transmitting a signal acquired by the shielded gate signal acquisition module to the upper computer;
the upper computer is used for interacting with the lower computer;
the upper computer comprises a main controller, a data processing module, a database module, a data query module and a fault alarm module, wherein the main controller is respectively connected with the data processing module, the database module, the data query module and the fault alarm module; the data processing module is used for processing the data of the status signal of the subway shielding door transmitted by the lower computer; the database module is used for storing various data processed by the data processing module; the data query module is used for calling and outputting stored historical data from the database module; the fault alarm module is used for comparing and analyzing various data processed by the data processing module and normal working state data in real time, obtaining a signal abnormal result and outputting the signal abnormal result into an alarm signal.
Furthermore, the shielding door signal acquisition module comprises a sensor unit, the sensor unit is connected with the subway shielding door system through a power cable and a signal cable, and the sensor unit comprises a door opening relay, a door closing relay, a current sensor and a voltage sensor of four functional relays, namely a closing relay, a locking relay and an interlocking release relay, and is respectively used for acquiring current and voltage information of key points in a loop where a relay coil is located and a loop where a contact is located. These current and voltage information are related to the status signals of the shield door for opening and closing, closing and locking, and unlocking of the interlock.
Further, the lower computer comprises a microprocessor, a switching value input/output unit and an AD conversion module, wherein the switching value input/output unit and the AD conversion module are connected with the microprocessor; and the microprocessor is connected with a main controller of the upper computer through an Ethernet.
Further, an STM32F4 series Cotex-M4 processor is selected as the microprocessor of the lower computer.
Further, the data query module is connected with the printer.
Furthermore, the upper computer further comprises a fault early warning module, the fault early warning module is connected with the main controller, and the fault early warning module is used for calling monitoring data of each monitoring point of the shielding door within one year from the database module through the data query module to generate a related data point curve and giving an early warning result according to the operation trend of the data point curve.
The utility model has the advantages that: the utility model discloses can carry out real time monitoring to the status signal of subway shield door to realize functions such as malfunction alerting and troubleshooting of shield door control circuit, reach and reduce the fault rate, shorten the on-the-spot time of salvageing, improve the purpose of safe operation guarantee. Furthermore, the utility model discloses it is compatible strong with other equipment of subway, can realize information sharing and data interaction.
Drawings
Fig. 1 is the utility model discloses a subway shield door monitoring system's structural schematic diagram, wherein PSD represents subway shield door system.
Fig. 2 is a schematic circuit diagram of the current information collection of the present invention.
Fig. 3 is a schematic circuit diagram of the voltage information acquisition of the present invention.
Fig. 4 is a working schematic diagram of the lower computer of the present invention.
Fig. 5 is a schematic structural diagram of the upper computer of the present invention.
Fig. 6 is a schematic interface diagram for monitoring the beijing subway No. 10 line in embodiment 1 of the present invention.
Fig. 7 is an interface schematic diagram of the data query module in embodiment 1 of the present invention.
Fig. 8 is the utility model discloses shield door relay normal current curve that opens door that transfers from database module through data query module among the embodiment 1.
Fig. 9 is the normal voltage curve of the shield door opening relay called from the database module through the data query module in embodiment 1 of the present invention.
Fig. 10 is an alarm window of the fault alarm module in embodiment 1 of the present invention.
Fig. 11 is the utility model discloses fault early warning module's early warning window in embodiment 1.
Detailed Description
The utility model discloses the current sensor that the embodiment adopted is ZDA06W type sensor.
The utility model discloses voltage sensor that concrete embodiment adopted is high resistance coupling isolation voltage sensor.
The present invention will now be described in further detail with reference to the accompanying drawings and specific examples, which are given by way of illustration and not of limitation.
Fig. 1 ~ 5 show the utility model discloses a subway shield door monitoring system's schematic structure diagram, include: the shielding door signal acquisition module, the lower computer and the upper computer. The shielding door signal acquisition module is used for acquiring a state signal of a subway shielding door, and comprises a sensor unit, wherein the sensor unit is connected with a subway shielding door system through a power cable and a signal cable, the sensor unit comprises a current sensor and a voltage sensor of four functional relays, namely a door opening relay, a door closing relay, a closing and locking relay and an interlocking release relay, and the current sensor is arranged outside a relay coil loop and does not damage a signal interface circuit of the relay; the voltage sensor is connected in parallel in a loop where the coil and the contact of the relay are located; the current sensor and the voltage sensor are respectively used for acquiring current and voltage information of key points in a loop where the relay coil is located and a loop where the contact points are located. These current and voltage information are related to the status signals of the shield door for opening and closing, closing and locking, and unlocking of the interlock. The shielding door signal acquisition module is connected with the lower computer. In addition, the sensor unit further comprises a voltage sensor for measuring the operating voltage of the screen door system.
The possible fault points at the interface part of the subway shielded gate signal system are as follows: the system comprises an opening/closing door relay, a relay power supply, related connecting wires, a closing and locking relay, an interlocking release relay and the like, and if the interface equipment fails, a signal system can possibly cause that the shielding door cannot be controlled by the signal system to be opened or closed in a linkage manner, or safety information of corresponding closing and locking is lost, and interlocking release operation with the shielding door is lost. Simultaneously signal system will be unable to know the linkage relation of shield door and the relevant state of shield door, the utility model discloses a current sensor carries out real-time data acquisition to each relay operating condition in the signal interface circuit, and the current signal who gathers transmits to the next machine, and the next machine is saved and can carry out simple logic judgement then passes to the host computer, and its signal acquisition principle is shown as figure 2. In addition, in the present embodiment, a high impedance coupling isolation sensor is used for collecting voltage information, and the circuit principle thereof is shown in fig. 3.
As shown in fig. 4, the lower computer includes a microprocessor, a switching value input/output unit and an AD conversion module connected to the microprocessor, the AD conversion module is connected to a signal sorting circuit, and the signal sorting circuit is connected to the sensor unit; the microprocessor is connected with a main controller of the upper computer, and the specific principle is as follows: and after the signals acquired by the current sensor are filtered and shaped, an A/D conversion module is adopted to perform data conversion and process according to a filtering algorithm, and finally, the data are sent to an upper computer to be analyzed, stored and processed. The universal input/output port of the singlechip is used as the input/output interface of the switching value, and expansion reservation is made. And the microprocessor of the lower computer selects an STM32F4 series Cotex-M4 processor. The lower computer is connected with the upper computer through the Ethernet.
In actual operation, every station of concentrating of subway sets up an upper computer, and the going upward of each station of this station control of concentrating sets up a lower computer respectively, and the signal acquisition of going upward, descending separately handles, and the purpose of doing so is in order to receive and dispatch the vehicle-hour when station uplink and downlink simultaneously, can not influence the data acquisition of lower computer, and then guarantees that data acquisition is timely accurate. Fig. 1 shows that the utility model discloses be applied to the single structure schematic diagram of concentrating the station of subway, to a plurality of concentration stations only need to link together the host computer of each concentration station through network switch, just can realize data sharing.
As shown in fig. 5, the upper computer adopts a Windows-based operating system, and adopts VC and VB programs to design each function module program of the upper computer. The upper computer comprises a main controller, a data processing module, a database module, a data query module, a fault alarm module and a fault early warning module, wherein the main controller is respectively connected with the data processing module, the database module, the data query module, the fault alarm module and the fault early warning module.
The data processing module is used for carrying out data processing on state signals of the subway shielding door transmitted by the lower computer, wherein the state signals comprise real-time signals of the platform shielding door in an ascending direction and a descending direction, such as door opening signals, door closing signals, voltage and current data signals of relay switch actions and the like. And the database module is used for storing the data processed by the data processing module. The data query module is used for calling and outputting stored historical record data from the database module, and can be connected with a printer and used for directly printing the data after exporting the data into file formats such as word, pdf, txt, excel and the like.
And the fault alarm module is used for comparing and analyzing the data processed by the data processing module and the normal working state data in real time, obtaining a signal abnormal result and outputting the signal abnormal result into an alarm signal. For example, in the process of entering and leaving a station of a subway locomotive, a subway signal department is responsible for giving a door opening signal and a door closing signal, an electromechanical department is responsible for giving a door closing and locking signal, when a shield door on a platform cannot be normally opened and closed, the electromechanical department needs to give an interlock release signal to force the platform shield door to be opened and closed to ensure that passengers get on and off the train normally, the actions of the relays follow strict time sequence logic, a lower computer quantizes the collected relay opening and closing states into 0 and 1 and sends the relay opening and closing states to an upper computer for logic judgment, the upper computer can effectively analyze whether the process is a complete train entering and leaving the station according to the successive action states of the relays, and if signal loss occurs, the upper computer can judge which relay has a problem. The specific principle is as follows: the relay has a release value and a working value, the original relay contact is in a disconnected state, voltage and current are conducted to the relay coil, when the working value of the relay is reached, the contact of the relay is switched from off to on, similarly, the contact of the relay is in an on-state to make the coil of the relay lose voltage and current, when the release value of the relay is reached, the contact of the relay is switched off from attraction, the release value and the working value can be used as the threshold value of a voltage comparator in the lower computer signal conditioning circuit, when the voltage and current of the relay exceed or decrease to the threshold, the output of the voltage comparator will produce a level flip, therefore, the single chip microcomputer system can recognize the high and low level states of 0 and 1, and the lower computer feeds the high and low level states back to the upper computer, so that the upper computer can conveniently judge whether the relay is in a release state or a working state. The upper computer is convenient to judge whether the coil of the relay is electrified or deenergized, and whether the contact of the relay is disconnected or attracted, so that the analysis of whether all the relays follow a correct logic or not in the process of entering the train to exit the train is facilitated, and the fault of the relay is conveniently judged.
The fault early warning module is connected with the main controller and used for calling monitoring data of each monitoring point of the shielding door within one year from the database module through the data query module to generate a related data point curve and giving an early warning result according to the operation trend of the data point curve. Such as: by calling the working state of each relay within 1 year and drawing a curve graph, whether the uplink and downlink dual-output relays are synchronous or not can be seen through the curve graph (the conditions that door opening, door closing, closing and locking are realized, interlocking is removed, each relay is completed by 2 sets of cooperation together, namely two door opening relays can complete one-time door opening only by simultaneously acting are understood), and meanwhile, the performance of the relay can be pre-judged through the curve graph, if the curve graph of the relay deviates from a normal curve, the performance parameter of the relay is proved to exceed the normal range, and replacement processing is needed.
Example 1
The utility model discloses a subway shield door monitoring system has been applied to Beijing subway No. 10 line, and what figure 6 shows is the host computer interface structure schematic diagram that adopts this system to monitor to Beijing subway No. 10 line, can wherein carry out operations such as data processing, storage, inquiry, warning, early warning. Fig. 7 shows a schematic interface diagram of the data query module, and fig. 8 and 9 also show the current/voltage curves of the relay which are retrieved from the database module by the module and are normally operated. Fig. 10 and 11 show an alarm window of the failure alarm module and an early warning window of the failure early warning module, respectively.
The utility model discloses when carrying out real-time data monitoring to shield door system, set up in the host computer and send the data requirement instruction with 200 millisecond time interval to the next computer, thereby the next computer sends the real-time data that shield door signal acquisition module obtained each acquisition point of equipment with the instruction to carry out the monitoring analysis of multiple fault logic, thereby obtain corresponding warning result. When a fault occurs, an operator can carry out fault repair treatment according to the treatment suggestion given by the alarm window.
In addition, the data curve of the monitoring point within one year is inquired and displayed through the upper computer, the result is analyzed, if the mean value has obvious rising or falling trend, the potential fault risk in the shielding door control circuit is predicted, the relay in the line is judged to have the degradation tendency in advance, the upper computer gives corresponding early warning prompt, and technicians can overhaul and investigate the related line and the relay according to the corresponding prompt, so that future faults are prevented, and the stability and the safety of the system are improved to a greater extent.
To sum up, the utility model discloses have following 4 points of advantage:
(1) the fault monitoring operation of the shield door is simplified, and the stable operation of the subway is preferentially ensured. According to the design concept of 'failure-safety', the system selects a high-precision current sensor, and has the advantages that the current sensor acquisition circuit and the signal interface circuit are in an isolated state and have no connection relation with each other, namely, the acquisition of the current sensor cannot be influenced when the signal system fails, and the normal work of the signal system cannot be influenced when the current sensor fails. The current sensor has the characteristics of low power consumption and high flame retardance, so that the potential safety hazard of spontaneous combustion caused by the rise of the temperature of the sensor does not exist for the signal system cabinet. All connectors selected by the system are selected by referring to a computer interlocking and monitoring system of a state iron so as to ensure reliable connection.
(2) The existing mature microcomputer monitoring technology is organically combined with the original artificial fault monitoring and judging technology. The system can draw a curve chart for the working state of each relay, can see whether the two-way output relay is synchronous or not through the curve chart, can also pre-judge the performance of the relay through the curve chart, and if the curve chart of the relay deviates from a normal curve, the performance parameter of the relay is proved to be beyond a normal range, and needs to be replaced.
(3) Because the subway shielding door signal interface circuit relay is indiscriminately used, the lower computer system can sample the coil of each relay through the sensor unit, so that the current coil current of the current relay can be collected, the state of the relay contact can be known through the coil current value of the next relay, the working states of the coil and the contact of the relay are monitored equivalently, and the relay is fully monitored. The maintenance is carried out according to the characteristic change state of the relay in a targeted manner, the situation that the maintenance is not in place and the maintenance is not excessive is reduced, and the state maintenance of the relay is realized.
(4) During the design of the system principle, a 'decentralized-centralized' design idea is applied, a lower computer is respectively arranged at the uplink and the downlink of each station controlled in a centralized station, data acquisition is independently carried out, mutual interference is avoided, the data acquisition is accurate and reliable, then the acquired data are transmitted to an upper computer of the centralized station through network interfaces by the lower computers, and the data are processed and stored uniformly. The large data processing technology is adopted to track the shield door relay combination circuit for a long time, the service lives of different relays and different contacts are analyzed, and a theoretical basis is provided for the state correction of equipment.
While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But variations and modifications which do not depart from the spirit and scope of the invention should be construed as being included in the scope of the appended claims.
Claims (6)
1. A subway screen door monitoring system, comprising: the shielding door signal acquisition module, the lower computer and the upper computer;
the shielding door signal acquisition module is used for acquiring a state signal of the subway shielding door and is connected with the lower computer;
the lower computer is used for sending a control command to the shielded gate signal acquisition module and transmitting signals acquired by the shielded gate signal acquisition module to the upper computer;
the upper computer is used for interacting with the lower computer;
the upper computer comprises a main controller, a data processing module, a database module, a data query module and a fault alarm module, wherein the main controller is respectively connected with the data processing module, the database module, the data query module and the fault alarm module; the data processing module is used for processing the data of the status signal of the subway shielding door transmitted by the lower computer; the database module is used for storing various data processed by the data processing module; the data query module is used for calling and outputting stored historical data from the database module; the fault alarm module is used for comparing and analyzing various data processed by the data processing module and normal working state data in real time, obtaining a signal abnormal result and outputting the signal abnormal result into an alarm signal.
2. The system for monitoring the subway shielding door according to claim 1, wherein the shielding door signal acquisition module comprises a sensor unit, the sensor unit is connected with the subway shielding door system through a power cable and a signal cable, the sensor unit comprises a current sensor and a voltage sensor of four functional relays, namely a door opening relay, a door closing relay, a lock closing and locking relay and an interlock releasing relay, and the current sensor and the voltage sensor are respectively used for acquiring current and voltage information of key points in a loop where a coil of the relay is located and a loop where a contact is located.
3. The subway shielding door monitoring system as claimed in claim 2, wherein said lower computer comprises a microprocessor, a switching value input/output unit and an AD conversion module connected with said microprocessor, said AD conversion module is connected with a signal processing circuit, said signal processing circuit is connected with said sensor unit; and the microprocessor is connected with a main controller of the upper computer through an Ethernet.
4. The subway shield door monitoring system according to claim 3, wherein said lower computer microprocessor is STM32F4 series Cotex-M4 processor.
5. The system of claim 1, wherein the data query module is coupled to a printer.
6. The system for monitoring the metro shielding door according to any one of claims 1 to 5, wherein the upper computer further comprises a fault early warning module, the fault early warning module is connected with the main controller, and the fault early warning module is used for retrieving monitoring data of each monitoring point of the shielding door within one year from the database module through the data query module to generate a relevant data point curve and giving an early warning result according to the operation trend of the data point curve.
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| CN202020339404.4U CN212134837U (en) | 2020-03-18 | 2020-03-18 | Subway shielded door monitoring system |
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| CN202020339404.4U CN212134837U (en) | 2020-03-18 | 2020-03-18 | Subway shielded door monitoring system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114265358A (en) * | 2021-12-24 | 2022-04-01 | 卡斯柯信号有限公司 | Shield door alarm method based on comprehensive monitoring |
| CN114941495A (en) * | 2022-05-26 | 2022-08-26 | 西安硅巷科创信息科技有限公司 | Big data information processing equipment |
| CN115598456A (en) * | 2022-11-29 | 2023-01-13 | 科瑞工业自动化系统（苏州）有限公司（Cn） | Train fault online monitoring method and system |
| CN114265358B (en) * | 2021-12-24 | 2024-04-26 | 卡斯柯信号有限公司 | Shielding door alarm method based on comprehensive monitoring |
-
2020
- 2020-03-18 CN CN202020339404.4U patent/CN212134837U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114265358A (en) * | 2021-12-24 | 2022-04-01 | 卡斯柯信号有限公司 | Shield door alarm method based on comprehensive monitoring |
| CN114265358B (en) * | 2021-12-24 | 2024-04-26 | 卡斯柯信号有限公司 | Shielding door alarm method based on comprehensive monitoring |
| CN114941495A (en) * | 2022-05-26 | 2022-08-26 | 西安硅巷科创信息科技有限公司 | Big data information processing equipment |
| CN115598456A (en) * | 2022-11-29 | 2023-01-13 | 科瑞工业自动化系统（苏州）有限公司（Cn） | Train fault online monitoring method and system |
| CN115598456B (en) * | 2022-11-29 | 2023-07-04 | 科瑞工业自动化系统（苏州）有限公司 | Train fault on-line monitoring method and system |
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