CN116878946A

CN116878946A - Method, device and system for monitoring platform screen door and electronic equipment

Info

Publication number: CN116878946A
Application number: CN202310913908.0A
Authority: CN
Inventors: 蔡冠之; 韦巍; 宋爽; 赵海阔
Original assignee: Beijing Guanfengxing Safety Technology Co ltd
Current assignee: Beijing Guanfengxing Safety Technology Co ltd
Priority date: 2023-07-24
Filing date: 2023-07-24
Publication date: 2023-10-13

Abstract

The invention provides a method, a device, a system and electronic equipment for monitoring a platform screen door, which are used for respectively acquiring door machine state information of the platform screen door, relay state information of a control cabinet and signal monitoring information of a station signal system and the control cabinet; analyzing and processing the door machine state information, the relay state information and the signal monitoring information to obtain fault diagnosis information and/or early warning information of the platform shielding door; and displaying the fault diagnosis information and/or the early warning information. Compared with the related art, the embodiment of the disclosure provides a method and a system capable of monitoring a platform screen door system in real time, which can accurately acquire the running condition of each component in the platform screen door system, reduce the times of maintenance and ensure the safety of the platform screen door.

Description

Method, device and system for monitoring platform screen door and electronic equipment

Technical Field

The disclosure relates to the technical field of rail transit, in particular to a method, a device, a system and electronic equipment for monitoring a platform screen door.

Background

With the rapid development of urban rail transit, the safety of rail transit is also receiving extensive attention from society. The platform screen door can prevent passengers or articles carried by the passengers from falling into the track, so that the normal operation of the train is prevented from being influenced. Platform screen doors are thus an important component of rail traffic safety facilities.

In order to ensure that the platform screen door can safely and normally operate, a great amount of manpower and material resources are required to be input for daily operation and maintenance. Currently, inspection and maintenance, fault report and repair and other maintenance work of the platform screen door are required to be performed in a time period when a train is stopped. And after the parts of the platform screen door are damaged, the operation of the platform screen door is not affected immediately; maintenance personnel can only detect the fault when it is further amplified.

Due to the complex system of the platform screen door, part of the faults cannot be timely detected by maintenance personnel. Therefore, how to detect the faults of the platform screen door in time is a problem to be solved.

Disclosure of Invention

The disclosure provides a method, a device, a system and electronic equipment for monitoring a platform screen door. The main purpose of the system is to realize the monitoring of the platform screen door system and reduce the labor cost and time cost caused by maintenance.

According to a first aspect of the present disclosure there is provided a method of monitoring a platform screen door comprising:

respectively acquiring door machine state information of a platform screen door, relay state information of a control cabinet and signal monitoring information of a station signal system and the control cabinet;

Analyzing and processing the door machine state information, the relay state information and the signal monitoring information to obtain fault diagnosis information and/or early warning information of the platform shielding door;

and displaying the fault diagnosis information and/or the early warning information.

Optionally, the step of obtaining door machine state information of the platform screen door, relay state information of the control cabinet and signal monitoring information of the station signal system and the control cabinet respectively includes:

acquiring door machine state information of the platform screen door based on a door machine state acquisition device;

acquiring relay state information of the control cabinet based on a relay state acquisition device;

and acquiring the signal monitoring information of the signal interface of the station signal system and the control cabinet based on the signal acquisition device.

Optionally, the door machine state information comprises temperature information and current information of a motor, belt tension information, electromechanical lock monitoring information and safety loop monitoring information;

the door machine state acquisition device comprises: the system comprises a temperature sensor, a first current sensor, a pressure sensor, a second current sensor, a travel switch state acquisition device and a safety loop monitoring device;

The door machine state information of the platform screen door is acquired based on a door machine state acquisition device, and the door machine state information comprises:

based on the temperature sensor and the first current sensor, respectively acquiring temperature information and current information of the motor;

acquiring the belt tension information of a belt in the platform screen door based on the pressure sensor;

acquiring a current action curve of an electromagnetic coil in the electromechanical lock and an action time difference value of a travel switch based on the second current sensor and the travel switch state acquisition device, wherein the electromechanical lock monitoring information comprises the action time difference value of the current action curve;

and acquiring the safety loop monitoring information based on the safety loop monitoring device. Optionally, the relay state acquisition device acquires relay state information of the control cabinet, including:

acquiring the opening and closing state information of the relay, the suction duration and the running times information of the relay based on the relay state acquisition device;

and generating the state information of the relay based on the opening and closing state information, the suction duration and the operation times information.

Optionally, the signal monitoring information based on the signal acquisition device, which acquires the signal interface between the station signal system and the control cabinet, includes:

Acquiring a voltage value of the signal interface based on the signal acquisition device;

and generating the signal monitoring information according to the voltage value.

Optionally, the analyzing the door machine state information, the relay state information and the signal monitoring information to obtain fault diagnosis information and/or early warning information of the platform screen door includes:

generating first early warning information when the temperature of the motor exceeds a first threshold value based on the temperature information;

generating second early warning information when the current of the motor exceeds a second threshold value based on the current information;

generating third early warning information when the tension of the belt is less than a third threshold based on the belt tension information;

determining the security level of the electromechanical lock based on the action time difference value of the flow action curve;

based on the safety circuit monitoring information, the position of the safety circuit breakpoint of the platform screen door is determined.

According to a second aspect of the present disclosure there is provided a monitoring device for a platform screen door comprising:

the acquisition unit is used for respectively acquiring door machine state information of the platform screen door, relay state information of the control cabinet and signal monitoring information of the station signal system and the control cabinet;

The analysis unit is used for analyzing and processing the door machine state information, the relay state information and the signal monitoring information to obtain fault diagnosis information and/or early warning information of the platform screen door;

and the display unit is used for displaying the fault diagnosis information and/or the early warning information.

Optionally, the acquiring unit includes:

the first acquisition module is used for acquiring door machine state information of the platform screen door based on a door machine state acquisition device;

the second acquisition module is used for acquiring relay state information of the control cabinet based on the relay state acquisition device;

and the third acquisition module is used for acquiring the signal monitoring information of the signal interface of the station signal system and the control cabinet based on the signal acquisition device.

The first acquisition module is further configured to:

and acquiring the safety loop monitoring information based on the safety loop monitoring device.

Optionally, the second obtaining module is further configured to:

Optionally, the third obtaining module is further configured to:

Optionally, the analysis unit includes:

the first generation module is used for generating the early warning information when the temperature of the motor exceeds a first threshold value based on the temperature information;

the second generation module is used for generating the early warning information when the current of the motor exceeds a second threshold value based on the current information;

a third generation module for generating the early warning information when the tension of the belt is smaller than a third threshold value based on the belt tension information;

the fourth generation module is used for determining the safety level of the electromechanical lock and generating the early warning information based on the action time difference value of the flow action curve;

a fifth generation module for determining the position of a safety circuit breakpoint of the platform screen door based on the safety circuit monitoring information and generating the fault diagnosis information;

a sixth generation module configured to generate operation state information of the relay corresponding part and generate the failure diagnosis information based on the open-close state information;

a seventh generating module, configured to generate the early warning information when the suction duration and/or the operation number are greater than a preset threshold based on the suction duration and the operation number information;

And the eighth generation module is used for generating the early warning information when the voltage value is determined to be larger than or smaller than a first range threshold value based on the voltage value, and storing the voltage value.

According to a third aspect of the present disclosure there is provided a monitoring system for a platform screen door comprising: the device comprises a door machine monitoring unit, a relay monitoring unit, a signal monitoring unit, a state analysis unit and a server;

the door machine monitoring unit is arranged in the platform screen door and is used for monitoring components of the platform screen door and generating door machine state information;

the relay monitoring unit is arranged in a control cabinet of the platform screen door and is used for monitoring a relay in the control cabinet and generating relay state information;

the signal monitoring unit is arranged at the interface of the station signal system and the control cabinet and is used for monitoring signal interaction of the station signal system and the signal interface of the control cabinet and generating communication state information;

the state analysis unit is respectively connected with the door machine monitoring unit, the relay monitoring unit and the signal monitoring unit and is used for acquiring the door machine state information, the relay state information and the communication state information and generating platform shielding door state information according to the acquired information;

The server is connected with the state analysis unit and is used for determining corresponding fault information according to the state information of the platform shielding door and generating corresponding warning or early warning information.

Optionally, the door machine monitoring unit includes: the system comprises an electronic mechanical lock monitoring module, a motor monitoring module, a belt monitoring module and a loop breakpoint monitoring module;

the door machine state information comprises electromagnetic coil state information, travel switch state information, motor state information, belt tension information and breakpoint position information;

the electronic mechanical lock monitoring module is connected with the electronic mechanical lock of the platform screen door and is used for monitoring the opening and closing states of an electromagnetic coil and a travel switch of the electronic mechanical lock and generating electromagnetic coil state information and travel switch state information;

the motor monitoring module is electrically connected with a motor of the platform screen door and is used for monitoring the current and the temperature of the motor and generating motor state information;

the belt monitoring module is connected with the belt rotating device of the platform screen door, and is used for monitoring the tension of a belt in the belt rotating device and generating belt tension information;

The loop breakpoint monitoring module is electrically connected with the safety loop of the platform screen door and is used for monitoring the breakpoint position of the safety loop and generating breakpoint position information.

Optionally, the relay monitoring unit monitors an opening and closing state of a relay in the control cabinet, and a running time and times of the relay, and generates the relay state information.

Optionally, the signal monitoring unit monitors the voltage and the voltage change of the signal interface of the station signal system and the control cabinet, and generates the communication state information.

Optionally, the state analysis unit includes a database, a state analysis module, and a communication module;

the communication module is respectively connected with the door machine monitoring unit, the relay monitoring unit, the signal monitoring unit and the server; the communication module is used for acquiring the door machine state information, the relay state information and the communication state information and sending the state information generated by the state analysis module to the server;

the state analysis module is respectively connected with the database and the communication module; the state analysis module analyzes the information acquired by the communication module to generate the state information of the platform shielding door, and stores the information acquired by the communication module and the state information of the platform shielding door into the database;

The database is respectively connected with the state analysis module and the communication module; the database is used for storing the information acquired by the communication module and the state information of the platform shielding door so as to facilitate the state analysis module and/or the server to inquire and use.

According to a fourth aspect of the present disclosure, there is provided an electronic device comprising:

at least one processor; and

a memory communicatively coupled to the at least one processor; wherein, the liquid crystal display device comprises a liquid crystal display device,

the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of the first aspect.

According to a fifth aspect of the present disclosure, there is provided a non-transitory computer readable storage medium storing computer instructions for causing the computer to perform the method of the preceding first aspect.

According to a sixth aspect of the present disclosure, there is provided a computer program product comprising a computer program which, when executed by a processor, implements the method of the first aspect described above.

It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the application or to delineate the scope of the application. Other features of the present application will become apparent from the description that follows.

Drawings

The drawings are for a better understanding of the present solution and are not to be construed as limiting the present disclosure. Wherein:

FIG. 1 is a flow chart of a method for monitoring a platform screen door according to an embodiment of the present disclosure;

FIG. 2 is a flow chart of another method for monitoring a platform screen door according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of a monitoring device for a platform screen door according to an embodiment of the present disclosure;

FIG. 4 is a schematic view of another apparatus for monitoring a platform screen door according to an embodiment of the present disclosure;

FIG. 5 is a schematic view of a monitoring system for a platform screen door according to an embodiment of the present disclosure;

FIG. 6 is a schematic view of another system for monitoring a platform screen door according to an embodiment of the present disclosure;

fig. 7 is a schematic block diagram of an example electronic device 500 provided by an embodiment of the disclosure.

Detailed Description

Exemplary embodiments of the present disclosure are described below in conjunction with the accompanying drawings, which include various details of the embodiments of the present disclosure to facilitate understanding, and should be considered as merely exemplary. Accordingly, one of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present disclosure. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

With the development of social economy, urban rail transit develops rapidly; the platform screen door can prevent passengers from entering the track area or the equipment area by mistake, and meanwhile, the factors that foreign matters drop into the track area and influence the normal of a train and the like are widely applied. Currently, subway platform screen doors are an important component of rail traffic safety facilities. The operating and maintenance costs of the platform screen door are also enormous. At present, at least 20 people are allocated to each subway line to carry out daily maintenance work of the platform screen door, and the daily work can be carried out only in limited 4 and 5 hours after the operation of the subway is finished. Maintenance of the platform screen door system involves periodic inspection maintenance, fault report maintenance, fault handling maintenance, periodic replacement of spare parts, personnel, material management and the like; most of key equipment and vulnerable parts of the system, such as a door machine, a door controller and the like, are installed in a hidden mode, maintenance and repair are time-consuming and labor-consuming, and in addition, the existing maintenance strategy mainly comprises the steps of formulating relevant maintenance standards according to maintenance manuals, industry standards, personal experiences and the like, and a maintainer checks and maintains the equipment according to the maintenance standards and the personal experiences. However, the operation of the whole system is not directly affected after some mechanical parts of the platform screen door system are damaged. Often, maintenance personnel can only detect the characteristics of temperature rise, abnormal vibration and the like of equipment operation after the faults are further expanded. In practice the entire system has been in operation with the fault for a period of time, so that the maintenance, which may otherwise be very simple, becomes a very complex maintenance. Meanwhile, faults in the system cannot be removed in time, and hidden danger is caused to safe operation.

The following describes a method, an apparatus, a system and an electronic device for monitoring a platform screen door according to an embodiment of the present disclosure with reference to the accompanying drawings.

Fig. 1 is a flowchart of a method for monitoring a platform screen door according to an embodiment of the present disclosure.

As shown in fig. 1, the method comprises the steps of:

step 101, door machine state information of a platform screen door, relay state information of a control cabinet and signal monitoring information of a station signal system and the control cabinet are respectively obtained.

In embodiments of the present disclosure, the door machine status information is status information of a platform screen door component, and the operating component may include, for example, but not limited to, a motor for driving the platform screen door to open and close, a transmission device for transmitting electric power, a locking device of the platform screen door, and the like; the door machine state information reflects the operating state of the components of the platform screen door; the running state may be, for example, data such as a rotational speed and a temperature of the motor, or may be data such as whether an excessive fit clearance exists in the transmission device, and it should be noted that the present disclosure is not limited to the state information of the door machine, which is specifically what kind of component. The platform screen door system is controlled by a control cabinet, and the performance and service life of the relay of the control cabinet can influence the safety of the platform screen door system. The relay status information may include, but is not limited to, information reflecting the use, life, etc. of the relay, such as the switch status of the relay.

The station signaling system needs to communicate with the platform screen door system to determine if the platform screen door is closed to control the vehicle entering or exiting. When the signal interaction between the station signal system and the platform screen door system is required to be failed, the normal operation of the vehicle can be influenced. The interaction between the station signal system and the platform screen door system is required to be monitored to obtain signal monitoring information, so that the influence caused by faults can be reduced.

And 102, analyzing and processing the door machine state information, the relay state information and the signal monitoring information to obtain fault diagnosis information and/or early warning information of the platform screen door.

In embodiments of the present disclosure, the various information obtained for the platform screen door system does not directly reflect whether the platform screen door system is malfunctioning. The acquired information needs to be analyzed and processed to obtain fault diagnosis information and/or early warning information of the reaction platform screen door system. For example, the temperature information of the motor obtained by the sensor can only reflect the current temperature of the motor, and it cannot be determined whether the current temperature exceeds the maximum temperature threshold under the current working condition (different seasonal temperature thresholds may also be different). The acquired temperature information needs to be processed to generate early warning information.

By processing the acquired various information, it is determined whether a fault and/or a safety hazard exists in the platform screen door system. The safety of the platform screen door system can be ensured, and the maintenance times and time are reduced.

And step 103, displaying the fault diagnosis information and/or the early warning information.

In the embodiment of the disclosure, the fault diagnosis information and/or the early warning information may be displayed by uploading to a cloud server and then performing remote monitoring, or may be displayed by a local control system; the platform screen door system can be conveniently monitored by operation and maintenance personnel, the overhaul times and overhaul time of the operation and maintenance personnel are reduced, and the operation efficiency is improved.

The present disclosure provides a method for monitoring a platform screen door, which respectively obtains door machine state information of the platform screen door, relay state information of a control cabinet and signal monitoring information of a station signal system and the control cabinet; analyzing and processing the door machine state information, the relay state information and the signal monitoring information to obtain fault diagnosis information and/or early warning information of the platform shielding door; and displaying the fault diagnosis information and/or the early warning information. Compared with the related art, the embodiment of the disclosure provides a method and a system capable of monitoring a platform screen door system in real time, which can accurately acquire the running condition of each component in the platform screen door system, reduce the times of maintenance and ensure the safety of the platform screen door.

For clarity of illustration of the disclosed embodiments, the disclosed embodiments provide a flow schematic of another method of monitoring a platform screen door.

As shown in fig. 2, the method comprises the steps of:

step 201, acquiring door machine state information of the platform screen door based on a door machine state acquisition device.

In the embodiment of the disclosure, the door machine state information comprises temperature information and current information of a motor, belt tension information, electronic mechanical lock monitoring information and safety loop monitoring information; the door machine state acquisition device comprises: the system comprises a temperature sensor, a first current sensor, a pressure sensor, a second current sensor, a travel switch state acquisition device and a safety loop monitoring device; the door machine state information of the platform screen door is acquired based on a door machine state acquisition device, and the door machine state information comprises: based on the temperature sensor and the first current sensor, respectively acquiring temperature information and current information of the motor; acquiring the belt tension information of a belt in the platform screen door based on a pressure sensor; acquiring a current action curve of an electromagnetic coil in the electronic mechanical lock and an action time difference value of a travel switch based on a second current sensor and a travel switch state acquisition device, wherein the electronic mechanical lock monitoring information comprises the current action curve and the action time difference value; and acquiring the safety loop monitoring information based on the safety loop monitoring device.

The motor is overheated and possibly damaged, so that the surface temperature of the motor is obtained in real time through the temperature sensor, and the purpose of monitoring the surface temperature of the motor is achieved. Under normal conditions, the motor drives the platform screen door in a substantially consistent manner, but as the load of the motor changes, the motor's operating conditions change. The load on the motor may become large, for example when the platform screen door hits an obstacle or a passenger. Therefore, the change of the current value of the motor when the platform screen door is opened and closed is obtained through the first current sensor, and the current curve drawn according to the current value is compared with the standard curve.

The transmission device of the motor is generally driven by a belt. When the tension of the belt in the platform screen door is reduced, the normal operation of the platform screen door is affected. By installing a hanging type belt tension detecting device or a roller type belt tension detecting device; in a hanger or roller device, a pressure sensor is installed to sense the tightness of the belt, convert the belt compression force into a resistance value, and generate belt tension information based on the resistance value.

Electromechanical locks are used to lock platform screen doors and if they are in an abnormal condition they will affect the safety of the platform screen door system. After the electromagnet coil of the electronic mechanical lock is connected with current, the electromagnet generates suction force to lift the lock body and trigger the contact head of the travel switch, so that the on-off state of the contact inside the travel switch is changed immediately. After the unlocking is successful, a tiny holding current is applied to the electromagnet to keep the lock body in a lifted state. When the electromechanical lock falls off, the external current of the electromagnet is cut off, and then the on-off state of the contact of the travel switch is immediately changed. The change condition of the current passing through the electromagnet coil is acquired through a second current sensor, and the travel switch state acquisition device acquires the action time difference value of the travel switch.

The safety circuit is used for monitoring whether the platform screen door is in a closed state. If the safety loop contact connector pin or the safety loop cable wire end is loose or virtual, and the return signal point state is normal, the safety loop is broken, but the door state indicator light displays normal and no prompt or alarm is provided on the upper computer monitoring interface. In addition, because the emergency gate travel switch adopts a swing rod structure, even if a quick-action switch is adopted, when the swing rod acts, the two sets of contacts inside have an action sequence of 5-10 degrees. If the connection is not definitely defined, the message returning point uses a group of contacts which act firstly, and the safety circuit point uses a group of contacts which act later, namely the message returning point is closed before the safety circuit point, and the influence of the stroke switch adjustment and the air pressure of the tunnel piston is added, so that the flash fault of the safety circuit is easily caused, but the indication lamp and the display interface have no fault prompt, and the fault position cannot be rapidly positioned. In an embodiment of the disclosure, the position of the break point of the safety loop is indirectly determined by detecting the difference between the input and output voltages of the safety loop. The safety loop monitoring device may be a voltage acquisition device disposed at the input end and the output end, which is not limited in the disclosure.

Step 202, generating the early warning information when the temperature of the motor exceeds a first threshold value based on the temperature information; and generating the early warning information when the current of the motor exceeds a second threshold value based on the current information.

Particularly, in the embodiment of the disclosure, when the temperature of the motor exceeds a first threshold value, early warning information is generated; and generating early warning information when the current of the motor exceeds a second threshold value. The early warning information is the early warning information of the platform screen door system, and the early warning information is displayed in the upper computer to give an alarm, so that the aim of early warning is fulfilled.

In other embodiments of the present disclosure, the temperature and current of the motor are obtained to determine the working condition in the running period of the motor, and thus determine whether the platform screen door switch is abnormal.

When the curve drawn by the current value in the opening and closing period is abnormal, generating early warning information according to the comparison result of the abnormal curve and the standard curve; the abnormal curve is recorded in the software database, so that the query can be conveniently performed. The warning information may include, but is not limited to, the following warning information:

three-level blue early warning: through comprehensive analysis of the current curve, the output power consumption of the motor in the whole door closing stroke is 120% of the power consumption output under the action of a standard curve, and the three-level blue early warning is judged.

Secondary orange alarm: through comprehensive analysis of the current curve, the output power consumption of the motor in the whole door closing stroke is 130% of the power consumption output under the action of a standard curve, and the three-level blue early warning is judged.

Primary red alarm: the sliding door is clamped by a person or an object in the closing process, and the motor characteristics are abnormal.

Step 203, based on the belt tension information, generating the early warning information when the tension of the belt is smaller than a third threshold value.

Specifically, in the embodiment of the disclosure, whether the obtained belt tension information is abnormal or not is judged based on the standard tension value of the belt calibrated in advance. And when the measured belt tension data is smaller than the deviation threshold value of the reference value in the operation process of the platform shielding door system, generating early warning information.

In some embodiments of the present disclosure, the pre-warning information may be different warning levels determined based on the difference between the measured belt tension information and calibrated data. For example, when the measured belt tension information is less than or equal to 5%, the belt tension information can be considered to be replaced in the next normal overhaul; when the measured belt tension information is greater than 5%, an immediate replacement is required.

And 204, determining the safety level of the electromechanical lock and generating the early warning information based on the action time difference value of the current action curve.

In the embodiment of the disclosure, the unlocking state of the whole set of electromagnetic locks is judged by monitoring the difference between the initial time of current application in the current action curve of the electromagnet and the initial time of the change of the action state of the travel switch; the locking state of the whole set of electromagnetic locks is judged by monitoring the difference value between the switching-off time of externally applied holding current of the electromagnet and the starting time of the action state change of the travel switch. And determining the security level of the electromechanical lock based on the unlocking state and the locking state. The security level is an assessment level of the health of the electromechanical lock. For example, the security level can be classified into three levels of good, general and bad, and the security level of the electromechanical lock is displayed in the upper computer in real time; when the safety level of the electromechanical lock is normal or poor, corresponding early warning information is generated.

Step 205, determining the position of the safety circuit break point of the platform screen door and generating the fault diagnosis information based on the safety circuit monitoring information.

In particular, in the embodiment of the disclosure, the position of the breakpoint of the safety loop is indirectly determined by detecting the difference between the voltages of the input end and the output end of the safety loop.

And 206, acquiring relay state information of the control cabinet based on a relay state acquisition device.

As a refinement of the embodiments of the present disclosure, based on a relay state acquisition device, acquiring relay state information of the control cabinet includes: acquiring the opening and closing state information of the relay, the suction duration and the running times information of the relay based on the relay state acquisition device; and generating the state information of the relay based on the opening and closing state information, the suction duration and the operation times information.

In particular, in the embodiment of the present disclosure, the relay state collecting device may obtain the information of the actuation duration and the operation number of the relay through a combination of a counter and a timer. The relay state acquisition device judges the switching state of the relay by acquiring the voltage and/or the current of the relay. The suction duration and the operation times of the relay react with the service life and the residual service life of the relay. The relay state information is displayed in the upper computer system, so that operation and maintenance personnel can be timely reminded of timely replacing the relay. The occurrence of safety accidents caused by overlong using time of the relay is prevented.

Step 207 of generating operation state information of the relay corresponding part and generating the fault diagnosis information based on the opening and closing state information; and generating the early warning information when the suction duration and/or the operation times are greater than a preset threshold value based on the suction duration and the operation times.

In particular, in the disclosed embodiments, in a platform screen door system, the relays are mainly used to control the opening and closing of the platform screen door, the protection circuit, etc. Different relays correspond to different functions of the platform screen door. The state information of different relays is acquired through the relay state acquisition device, so that monitoring of different parts or functions in the platform screen door is realized. If the standard state of the relay when the platform screen door operates is different from the monitored open-close state information of the relay, fault diagnosis information of a corresponding component of the relay is generated. Meanwhile, the operation stop of the platform screen door caused by the effective relay is prevented by monitoring the actuation time length and the operation times of the relay.

Step 208, based on a signal acquisition device, acquiring the signal monitoring information of the signal interface of the station signal system and the control cabinet.

As a refinement of the embodiments of the present disclosure, the obtaining, based on a signal acquisition device, the signal monitoring information of the signal interface of the station signal system and the control cabinet includes: acquiring a voltage value of the signal interface based on the signal acquisition device; and generating the signal monitoring information according to the voltage value.

In particular, in the embodiments of the present disclosure, the signal acquisition device is used to acquire a change in voltage at the interface terminal strip of the platform screen door system and the station signal system. Exemplary signal acquisition devices may include, but are not limited to, a power supply unit, a main chip logic unit, a power isolation module, a signal acquisition linear optocoupler unit, and a USB communication unit, and the main function is to acquire multiple voltage analog quantities.

Step 209, based on the voltage value, generating the early warning information when the voltage value is determined to be greater than or less than a first range threshold, and storing the voltage value.

In particular, in the embodiment of the present disclosure, the first range threshold is a normal range of the operating voltage at the interface terminal strip of the station signal system and the platform screen door system under normal conditions. Illustratively, the door opening command voltage typically jumps from 0 to 22V-26V, thus the first division is at a threshold of 22V-26V. When the voltage value is not in the first range threshold, the door opening command is abnormal, and early warning information needs to be generated.

And step 210, displaying the fault diagnosis information and/or the early warning information.

In particular, in the embodiment of the present disclosure, various information generated in the foregoing steps is displayed in the upper computer system, and the generated fault diagnosis information and/or early warning information is displayed by means of separate display or by means of comparative display, so as to monitor various components in the platform screen door system. Components which can be found in advance to have problems in the platform screen door system, etc.; the problem can be more accurately positioned, the workload of operation and maintenance personnel is reduced, and the maintenance efficiency is improved.

It should be noted that, in the embodiments of the present disclosure, a plurality of steps may be included, and these steps are numbered for convenience of description, but these numbers are not limitations on the execution time slots and execution orders between the steps; the steps may be performed in any order, and embodiments of the present disclosure are not limited in this regard.

Corresponding to the electric vehicle charging control method based on three-phase balance, the invention further provides an electric vehicle charging control device based on three-phase balance. Since the device embodiment of the present invention corresponds to the above-mentioned method embodiment, details not disclosed in the device embodiment may refer to the above-mentioned method embodiment, and details are not described in detail in the present invention.

Fig. 3 is a schematic structural view of a monitoring device for a platform screen door according to an embodiment of the present disclosure, as shown in fig. 3, including:

an acquiring unit 31, configured to acquire door machine state information of a platform screen door, relay state information of a control cabinet, and signal monitoring information of a station signal system and the control cabinet, respectively;

the analysis unit 32 is configured to analyze the door machine state information, the relay state information, and the signal monitoring information, so as to obtain fault diagnosis information and/or early warning information of the platform screen door;

and a display unit 33, configured to display the fault diagnosis information and/or the early warning information.

The invention provides a monitoring device of a platform screen door, which is used for respectively acquiring door machine state information of the platform screen door, relay state information of a control cabinet and signal monitoring information of a station signal system and the control cabinet; analyzing and processing the door machine state information, the relay state information and the signal monitoring information to obtain fault diagnosis information and/or early warning information of the platform shielding door; and displaying the fault diagnosis information and/or the early warning information. Compared with the related art, the embodiment of the disclosure provides a method and a system capable of monitoring a platform screen door system in real time, which can accurately acquire the running condition of each component in the platform screen door system, reduce the times of maintenance and ensure the safety of the platform screen door.

Further, in one possible implementation manner of this embodiment, as shown in fig. 4, the obtaining unit 31 includes:

the first acquisition module 311 is configured to acquire door state information of the platform screen door based on a door state acquisition device;

a second obtaining module 312, configured to obtain relay status information of the control cabinet based on the relay status collection device;

and a third obtaining module 313, configured to obtain the signal monitoring information of the signal interface between the station signal system and the control cabinet based on the signal collecting device.

Further, in one possible implementation manner of this embodiment, the door machine state information includes temperature information and current information of the motor, belt tension information, electromechanical lock monitoring information and safety loop monitoring information;

the first obtaining module 311 is further configured to:

Further, in a possible implementation manner of this embodiment, the second obtaining module 312 is further configured to:

Further, in a possible implementation manner of this embodiment, the third obtaining module 313 is further configured to:

Further, in one possible implementation manner of the present embodiment, as shown in fig. 4, the analysis unit 32 includes:

a first generation module 321, configured to generate the early warning information when the temperature of the motor exceeds a first threshold based on the temperature information;

a second generation module 322, configured to generate the early warning information when the current of the motor exceeds a second threshold based on the current information;

a third generation module 323, configured to generate the early warning information when the tension of the belt is less than a third threshold based on the belt tension information;

a fourth generating module 324, configured to determine a security level of the electromechanical lock and generate the early warning information based on the action time difference value of the flow action curve;

a fifth generation module 325 for determining the location of a safety circuit breakpoint of the platform screen door and generating the fault diagnosis information based on the safety circuit monitoring information;

a sixth generation module 326 for generating operation state information of the relay corresponding part and generating the failure diagnosis information based on the open-close state information;

a seventh generating module 327, configured to generate the early warning information when the pull-in duration and/or the operation number is greater than a preset threshold based on the pull-in duration and the operation number information;

An eighth generation module 328 is configured to generate the early warning information and store the voltage value when the voltage value is determined to be greater than or less than the first range threshold based on the voltage value.

The foregoing explanation of the method embodiment is also applicable to the apparatus of this embodiment, and the principle is the same, and this embodiment is not limited thereto.

Fig. 5 is a schematic structural diagram of a monitoring system for a platform screen door according to an embodiment of the present disclosure, including:

a door machine monitoring unit 41, a relay monitoring unit 42, a signal monitoring unit 43, a state analyzing unit 44 and a server 45;

the door machine monitoring unit 41 is arranged in the platform screen door and is used for monitoring components of the platform screen door and generating door machine state information;

the relay monitoring unit 42 is arranged in a control cabinet of the platform screen door and is used for monitoring a relay in the control cabinet and generating relay state information;

the signal monitoring unit 43 is disposed at an interface between the station signal system and the control cabinet, and is configured to monitor signal interaction between the station signal system and the signal interface of the control cabinet and generate communication status information;

The state analysis unit 44 is respectively connected with the door machine monitoring unit 41, the relay monitoring unit 42 and the signal monitoring unit 43, and is used for acquiring the door machine state information, the relay state information and the communication state information, and generating platform shielding door state information according to the acquired information;

the server 44 is connected to the status analysis unit 43 and is configured to determine corresponding fault information according to the status information of the platform screen door, and generate corresponding alarm or early warning information.

The invention provides a monitoring system of a platform screen door, which is used for respectively acquiring door machine state information of the platform screen door, relay state information of a control cabinet and signal monitoring information of a station signal system and the control cabinet; analyzing and processing the door machine state information, the relay state information and the signal monitoring information to obtain fault diagnosis information and/or early warning information of the platform shielding door; and displaying the fault diagnosis information and/or the early warning information. Compared with the related art, the embodiment of the disclosure provides a method and a system capable of monitoring a platform screen door system in real time, which can accurately acquire the running condition of each component in the platform screen door system, reduce the times of maintenance and ensure the safety of the platform screen door.

Further, in one possible implementation manner of this embodiment, as shown in fig. 6, the door machine monitoring unit 41 includes: an electromechanical lock monitoring module 411, a motor monitoring module 412, a belt monitoring module 413, and a loop break point monitoring module 414;

the electromechanical lock monitoring module 411 is connected with the electromechanical lock of the platform screen door, and is used for monitoring the opening and closing states of the electromagnetic coil and the travel switch of the electromechanical lock and generating electromagnetic coil state information and travel switch state information;

the motor monitoring module 412 is electrically connected with the motor of the platform screen door, and is used for monitoring the current and the temperature of the motor and generating motor state information;

the belt monitoring module 413 is connected with a belt rotating device of the platform screen door and is used for monitoring the tension of a belt in the belt rotating device and generating belt tension information;

the loop breakpoint monitoring module 414 is electrically connected to the safety loop of the platform screen door, and is configured to monitor a breakpoint position of the safety loop and generate breakpoint position information.

Further, in one possible implementation manner of this embodiment, as shown in fig. 6, the relay monitoring unit 42 monitors the open/close state of the relay in the control cabinet and the operation time and the number of times of the relay, and generates the relay state information.

Further, in one possible implementation manner of this embodiment, as shown in fig. 6, the signal monitoring unit 43 monitors the voltage and the voltage variation of the signal interface between the station signal system and the control cabinet, and generates the communication status information.

Further, in a possible implementation manner of the present embodiment, as shown in fig. 6, the state analysis unit 44 includes a database 441, a state analysis module 442, and a communication module 443;

the communication module 443 is connected to the door operator monitoring unit 41, the relay monitoring unit 42, the signal monitoring unit 43, and the server 45, respectively; the communication module 443 is configured to obtain the door machine status information, the relay status information, and the communication status information, and send the status information generated by the status analysis module to the server 45;

the state analysis module 442 is connected to the database 441 and the communication module 443, respectively; the state analysis module 442 analyzes the information acquired by the communication module 443 to generate the platform screen door state information, and stores the information acquired by the communication module and the platform screen door state information into the database 441;

The database 441 is connected to the state analysis module 442 and the communication module 443, respectively; the database 441 is configured to store information obtained by the communication module 443 and the platform screen door status information for use by the status analysis module 442 and/or the server 45.

According to embodiments of the present disclosure, the present disclosure also provides an electronic device, a readable storage medium and a computer program product.

Fig. 7 shows a schematic block diagram of an example electronic device 500 that may be used to implement embodiments of the present disclosure. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular telephones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the disclosure described and/or claimed herein.

As shown in fig. 7, the apparatus 500 includes a computing unit 501 that can perform various appropriate actions and processes according to a computer program stored in a ROM (Read-Only Memory) 502 or a computer program loaded from a storage unit 508 into a RAM (Random Access Memory ) 503. In the RAM 503, various programs and data required for the operation of the device 500 can also be stored. The computing unit 501, ROM 502, and RAM 503 are connected to each other by a bus 504. An I/O (Input/Output) interface 505 is also connected to bus 504.

Various components in the device 500 are connected to the I/O interface 505, including: an input unit 506 such as a keyboard, a mouse, etc.; an output unit 507 such as various types of displays, speakers, and the like; a storage unit 508 such as a magnetic disk, an optical disk, or the like; and a communication unit 509 such as a network card, modem, wireless communication transceiver, etc. The communication unit 509 allows the device 500 to exchange information/data with other devices via a computer network such as the internet and/or various telecommunication networks.

The computing unit 501 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of computing unit 501 include, but are not limited to, a CPU (Central Processing Unit ), a GPU (Graphic Processing Units, graphics processing unit), various dedicated AI (Artificial Intelligence ) computing chips, various computing units running machine learning model algorithms, a DSP (Digital Signal Processor ), and any suitable processor, controller, microcontroller, etc. The calculation unit 501 performs the various methods and processes described above, for example the method of monitoring a platform screen door. For example, in some embodiments, the method of monitoring a platform screen door may be implemented as a computer software program tangibly embodied on a machine-readable medium, such as the storage unit 508. In some embodiments, part or all of the computer program may be loaded and/or installed onto the device 500 via the ROM 502 and/or the communication unit 509. When the computer program is loaded into RAM 503 and executed by computing unit 501, one or more steps of the method described above may be performed. Alternatively, in other embodiments, the calculation unit 501 may be configured to perform the aforementioned method of monitoring a platform screen door in any other suitable way (e.g. by means of firmware).

Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuit System, FPGA (Field Programmable Gate Array ), ASIC (Application-Specific Integrated Circuit, application-specific integrated circuit), ASSP (Application Specific Standard Product, special-purpose standard product), SOC (System On Chip ), CPLD (Complex Programmable Logic Device, complex programmable logic device), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.

Program code for carrying out methods of the present disclosure may be written in any combination of one or more programming languages. These program code may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus such that the program code, when executed by the processor or controller, causes the functions/operations specified in the flowchart and/or block diagram to be implemented. The program code may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.

In the context of this disclosure, a machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. The machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, RAM, ROM, EPROM (Electrically Programmable Read-Only-Memory, erasable programmable read-Only Memory) or flash Memory, an optical fiber, a CD-ROM (Compact Disc Read-Only Memory), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

To provide for interaction with a user, the systems and techniques described here can be implemented on a computer having: a display device (e.g., CRT (Cathode-Ray Tube) or LCD (Liquid Crystal Display ) monitor) for displaying information to a user; and a keyboard and pointing device (e.g., a mouse or trackball) by which a user can provide input to the computer. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.

The systems and techniques described here can be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: LAN (Local Area Network ), WAN (Wide Area Network, wide area network), internet and blockchain networks.

The computer system may include a client and a server. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical hosts and VPS service ("Virtual Private Server" or simply "VPS") are overcome. The server may also be a server of a distributed system or a server that incorporates a blockchain.

It should be noted that, artificial intelligence is a subject of studying a certain thought process and intelligent behavior (such as learning, reasoning, thinking, planning, etc.) of a computer to simulate a person, and has a technology at both hardware and software level. Artificial intelligence hardware technologies generally include technologies such as sensors, dedicated artificial intelligence chips, cloud computing, distributed storage, big data processing, and the like; the artificial intelligence software technology mainly comprises a computer vision technology, a voice recognition technology, a natural language processing technology, a machine learning/deep learning technology, a big data processing technology, a knowledge graph technology and the like.

Those of ordinary skill in the art will appreciate that: the various numbers of first, second, etc. referred to in this disclosure are merely for ease of description and are not intended to limit the scope of embodiments of this disclosure, nor to indicate sequencing.

At least one of the present disclosure may also be described as one or more, a plurality may be two, three, four or more, and the present disclosure is not limited. In the embodiment of the disclosure, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "a", "B", "C", and "D", and the technical features described by "first", "second", "third", "a", "B", "C", and "D" are not in sequence or in order of magnitude.

It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps recited in the present disclosure may be performed in parallel, sequentially, or in a different order, provided that the desired results of the disclosed aspects are achieved, and are not limited herein.

The above detailed description should not be taken as limiting the scope of the present disclosure. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present disclosure are intended to be included within the scope of the present disclosure.

Claims

1. A method of monitoring a platform screen door, comprising:

2. The method according to claim 1, wherein the acquiring door machine state information of the platform screen door, relay state information of the control cabinet, and signal monitoring information of the station signal system and the control cabinet, respectively, includes:

3. The method of claim 2, wherein the door machine status information includes temperature and current information of a motor, belt tension information, electromechanical lock monitoring information, and safety circuit monitoring information;

acquiring a current action curve of an electromagnetic coil in the electromechanical lock and an action time difference value of a travel switch based on the second current sensor and the travel switch state acquisition device, wherein the electromechanical lock monitoring information comprises the current action curve and the action time difference value;

4. The method according to claim 2, wherein the acquiring relay status information of the control cabinet based on the relay status acquisition device includes:

5. The method according to claim 2, wherein the acquiring the signal monitoring information of the signal interface of the station signal system and the control cabinet based on the signal acquisition device includes:

6. A method according to any one of claims 3-5, wherein said analyzing said door machine status information, said relay status information and said signal monitoring information to obtain fault diagnosis information and/or pre-warning information of said platform screen door comprises:

generating the early warning information when the temperature of the motor exceeds a first threshold value based on the temperature information;

generating the early warning information when the current of the motor exceeds a second threshold value based on the current information;

generating the early warning information when the tension of the belt is less than a third threshold based on the belt tension information;

determining the security level of the electromechanical lock and generating the early warning information based on the action time difference value of the flow action curve;

determining the position of a safety loop breakpoint of a platform screen door based on the safety loop monitoring information and generating the fault diagnosis information;

generating operation state information of the relay corresponding part and generating the fault diagnosis information based on the opening and closing state information;

Generating the early warning information when the suction duration and/or the operation times are greater than a preset threshold value based on the suction duration and the operation times;

and generating the early warning information when the voltage value is determined to be larger or smaller than a first range threshold value based on the voltage value, and storing the voltage value.

7. A device for monitoring a platform screen door, comprising:

8. A system for monitoring a platform screen door, comprising: the device comprises a door machine monitoring unit, a relay monitoring unit, a signal monitoring unit, a state analysis unit and a server;

9. The system of claim 8, wherein the door operator monitoring unit comprises: the system comprises an electronic mechanical lock monitoring module, a motor monitoring module, a belt monitoring module and a loop breakpoint monitoring module;

10. The system of claim 8, wherein the relay monitoring unit monitors an open-close state of a relay in the control cabinet and a running time and number of times of the relay, and generates the relay state information.

11. The system of claim 8, wherein the signal monitoring unit monitors the station signaling system and the control cabinet for voltage and voltage changes and generates the communication status information.

12. The system of claim 8, wherein the state analysis unit comprises a database, a state analysis module, and a communication module;

13. An electronic device, comprising:

At least one processor; and

the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-6.

14. A non-transitory computer readable storage medium storing computer instructions for causing the computer to perform the method of any one of claims 1-6.

15. A computer program product comprising a computer program which, when executed by a processor, implements the method according to any of claims 1-6.