Method and device for monitoring insulation of subway platform door based on measured resistance, and system

Abstract

The present disclosure provides a subway platform door insulation monitoring method, device and system, and electronic equipment, relates to the field of rail transit technology, and the technical scheme comprises the following steps: collecting a first current, a voltage and a second current of an equipotential line; calculating a first resistance value and a second resistance value according to the first current, the second current and the voltage; if the first resistance value is less than a first preset resistance setting value, it is determined that the insulation resistance of the upper and lower support connecting pieces does not meet the requirements; and if the second resistance value is less than a second preset resistance setting value, it is determined that the platform door resistance does not meet the requirements. Compared with the related art, the voltage sensor, the first current sensor, the second current sensor, the voltage, the first current and the second current are used to collect the voltage and the first current between the platform door body steel structure and the current collection row in real time, and the first resistance of each upper and lower support connecting piece and the second total resistance of the platform door are calculated based on the voltage, the first current and the second current, so that the real-time monitoring of the platform door insulation resistance is realized.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of rail transit, and in particular to a metro platform door insulation online monitoring method and system and an electronic device. BACKGROUND

[0002] Most of the metro trains in China use a direct current power supply system, and the steel rail is used as a return rail and is directly connected to the traction substation. In order to prevent stray current from causing electric corrosion to underground metal pipelines, the steel rail and the ground are insulated. The steel rail is connected to the ground grid through the grounding busbar of the traction substation. Thus, there is a potential difference between the steel rail and the train body on the line and the ground.

[0003] In order to avoid the risk of electric shock when passengers contact the platform door installed on the platform, the top and bottom of the platform door body structure are insulated, that is, the platform door body and the ground are insulated. After the platform door is put into operation, the platform door body and the steel rail also need to be kept at the same potential, that is, the platform door body and the steel rail need to be connected at the same potential.

[0004] In actual operation, the insulation performance of the insulation components deteriorates due to the running environment such as humidity, pollution, and the like, and even causes a fire accident, which has a great impact on the normal operation of the train and brings a high risk to the personal safety of passengers. Therefore, it is urgent to develop a platform door insulation state monitoring device to timely find the insulation state change of the insulation components. SUMMARY

[0005] The present disclosure provides a metro platform door insulation online monitoring method and system and an electronic device. The main purpose is to realize real-time monitoring of the insulation resistance of the platform door, and further realize real-time monitoring of the insulation state change.

[0006] According to a first aspect of the present disclosure, a metro platform door insulation online monitoring method is provided, comprising:

[0007] Based on the first current sensor, the voltage sensor and the second current sensor, the first current and the voltage between the platform door body steel structure and the current collection row, and the second current of the equipotential line are collected, respectively. The first current sensor is connected with the current lead wire, the current lead wire is used to lead out the leakage current of the leakage current lead-out device arranged on each upper and lower support connecting piece of the metro platform door, and is connected with the leakage current collection row. The voltage sensor is arranged between the platform door body steel structure and the current collection row. The second current sensor is connected to the equipotential line between the metro platform door and the train return rail.

[0008] The first resistance value of each upper and lower support connecting piece and the second resistance value of the platform door overall are calculated according to the first current and the second current collected respectively with the voltage, and the upper and lower support connecting piece includes at least one upper and lower support connecting piece at the bottom of the platform door or at least one upper connecting piece.

[0009] If the first resistance value is less than a first preset resistance setting value, it is determined that the insulation resistance of the upper and lower support connecting piece of the subway platform door does not meet the requirements.

[0010] If the second resistance value is less than a second preset resistance setting value, it is determined that the overall insulation resistance of the platform door does not meet the requirements.

[0011] Optionally, the first current and the voltage between the platform door body steel structure and the current collection row and the second current of the equipotential line are collected based on the first current sensor, the voltage sensor and the second current sensor, including:

[0012] The first current sensor is connected in series with the leakage current leading device, and the first current between the platform door body steel structure and the current collection row is collected;

[0013] The voltage sensor is connected in parallel between the platform door body steel structure and the current collection row, and the voltage between the platform door body steel structure and the current collection row is collected;

[0014] The second current sensor is connected in series on the equipotential line, and the second current on the equipotential line is collected;

[0015] A communication network is constructed based on the first current sensor, the voltage sensor and the second current sensor, and the insulation state parameter processing device is communicated.

[0016] Optionally, the communication network is constructed based on the first current sensor, the voltage sensor and the second current sensor, and the insulation state parameter processing device is communicated, including:

[0017] The first current collected by the first current sensor, the voltage collected by the voltage sensor and the second current collected by the second current sensor are transmitted to the insulation state parameter processing device;

[0018] The first current, the second current and the voltage are calculated based on the insulation state parameter processing device, and the first resistance value of each upper and lower support connecting piece and the second resistance value of the platform door overall are obtained respectively.

[0019] Optionally, the method further includes:

[0020] If it is determined that the insulation resistance of the upper and lower support connecting piece of the subway platform door does not meet the requirements or the overall insulation resistance of the platform door does not meet the requirements, an insulation failure alarm is executed.

[0021] Optionally, the executing insulation failure alarm comprises:

[0022] After the leakage of the metro platform door, a first current sensor identifier corresponding to the first resistance value is obtained;

[0023] According to the first current sensor identifier, a corresponding first current sensor is determined;

[0024] According to the first current sensor, an identifier of an upper and lower support connecting piece of the connected platform door is determined;

[0025] When the alarm is executed, the identifier of the upper and lower support connecting piece is output to determine the leakage position.

[0026] According to a second aspect of the present disclosure, a metro platform door insulation online monitoring device is provided, comprising:

[0027] The acquisition unit is configured to acquire a first current and a voltage between a platform door body steel structure and a current collection row, and a second current of an equipotential line based on a first current sensor, a voltage sensor and a second current sensor, the first current sensor is connected with a current leading wire, the current leading wire is used to connect a leakage current leading-out device arranged on each upper and lower support connecting piece of the metro platform door with a leakage current collection row, the voltage sensor is arranged between the platform door body steel structure and the current collection row, and the second current sensor is connected with the equipotential line between the metro platform door and a train return rail;

[0028] The calculation unit is configured to calculate a first resistance value of each upper and lower support connecting piece and a second resistance value of the platform door as a whole according to the acquired first current and second current and voltage, respectively, the upper and lower support connecting piece comprises at least one upper and lower support connecting piece at the bottom of the platform door or at least one upper connecting piece;

[0029] The first determination unit is configured to determine that the insulation resistance of the upper and lower support connecting piece of the metro platform door does not meet the requirements when the first resistance value is less than a first preset resistance setting value;

[0030] The second determination unit is configured to determine that the overall insulation resistance of the platform door does not meet the requirements when the second resistance value is less than a second preset resistance setting value.

[0031] Optionally, the acquisition unit comprises:

[0032] The first acquisition module is configured to connect the first current sensor and the leakage current leading-out device in series to acquire the first current between the platform door body steel structure and the current collection row;

[0033] a second acquisition module, configured to connect the voltage sensor in parallel between the steel structure of the platform door body and the current collection row to acquire a voltage between the steel structure of the platform door body and the current collection row;

[0034] a third acquisition module, configured to connect the second current sensor in series on the equipotential line to acquire a second current on the equipotential line;

[0035] a communication module, configured to construct a communication network based on the first current sensor, the voltage sensor and the second current sensor, and communicate with the insulation state parameter processing apparatus.

[0036] Optionally, the communication module is further configured to:

[0037] transmit the first current acquired by the first current sensor, the voltage acquired by the voltage sensor and the second current acquired by the second current sensor to the insulation state parameter processing apparatus;

[0038] based on the insulation state parameter processing apparatus, calculate the first current, the second current and the voltage to obtain a first resistance value of each upper and lower support connecting piece and a second resistance value of the platform door body.

[0039] Optionally, the apparatus further comprises:

[0040] an alarm unit, configured to perform insulation failure alarm when the determination unit determines that the insulation resistance of the upper and lower support connecting pieces or the insulation resistance of the platform door body does not meet the requirements.

[0041] Optionally, the alarm unit comprises:

[0042] an acquisition module, configured to acquire a first current sensor identifier corresponding to the first resistance value after the leakage of the platform door of the subway.

[0043] a first determination module, configured to determine the corresponding first current sensor according to the first current sensor identifier;

[0044] a second determination module, configured to determine an identifier of the upper and lower support connecting pieces of the platform door connected to the first current sensor according to the first current sensor;

[0045] a third determination module, configured to output the identifier of the upper and lower support connecting pieces to determine the leakage position when performing the alarm.

[0046] According to a third aspect of the present disclosure, a subway platform door insulation online monitoring system is provided, comprising a subway platform door insulation online monitoring apparatus.

[0047] According to a fourth aspect of the present disclosure, an electronic device is provided, comprising:

[0048] at least one processor; and

[0049] a memory communicatively connected with the at least one processor; wherein

[0050] The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method of the first aspect.

[0051] According to a fifth aspect of the present disclosure, a non-transitory computer-readable storage medium storing computer instructions is provided, wherein the computer instructions are used to enable the computer to perform the method of the first aspect.

[0052] According to a sixth aspect of the present disclosure, a computer program product is provided, comprising a computer program which, when executed by a processor, implements the method of the first aspect.

[0053] The subway platform door insulation online monitoring method and system and electronic device provided by the present disclosure are based on a first current sensor, a voltage sensor and a second current sensor, which respectively collect a first current and a voltage between a platform door body steel structure and a current collection row, and a second current of an equipotential line. The first current sensor is connected with a current lead wire, the current lead wire is used to connect a leakage current lead-out device arranged on each upper and lower support connecting piece of the subway platform door with a leakage current collection row, the voltage sensor is arranged between the platform door body steel structure and the current collection row, and the second current sensor is connected with the equipotential line between the subway platform door and a train return rail. First resistance values of each upper and lower support connecting piece and a second resistance value of the platform door as a whole are respectively calculated according to the collected first current and second current and voltage. The upper and lower support connecting piece includes at least one upper and lower support connecting piece at the bottom of the platform door or at least one upper connecting piece. If the first resistance value is less than a first preset resistance setting value, it is determined that the insulation resistance of the upper and lower support connecting piece of the subway platform door does not meet the requirements. If the second resistance value is less than a second preset resistance setting value, it is determined that the overall insulation resistance of the platform door does not meet the requirements. Compared with the related art, the voltage sensor, the first current sensor and the second current sensor are used to collect the voltage and the first current between the platform door body steel structure and the current collection row in real time, and the second current of the equipotential line in real time. The first resistance of each upper and lower support connecting piece and the second resistance of the platform door as a whole are calculated based on the voltage, the first current and the second current, so as to realize real-time monitoring of the insulation resistance of the platform door.

[0054] It should be understood that the content described in this part is not intended to identify key or important features of the embodiments of the present application, nor is it used to limit the scope of the present application. Other features of the present application will become apparent through the following description. BRIEF DESCRIPTION OF DRAWINGS

[0055] The accompanying drawings are included to provide a further understanding of the present application, and are incorporated in and constitute a part of this specification. Among the drawings:

[0056] Figure 1 A flowchart of a metro platform door insulation online monitoring method provided by an embodiment of the present disclosure;

[0057] Figure 2 A metro platform door insulation monitoring system provided by an embodiment of the present disclosure;

[0058] Figure 3 A structure diagram of a metro platform door insulation online monitoring device provided by an embodiment of the present disclosure;

[0059] Figure 4 A structure diagram of another metro platform door insulation online monitoring device provided by an embodiment of the present disclosure;

[0060] Figure 5 A schematic block diagram of an example electronic device 300 that can be used to implement embodiments of the present disclosure is shown. DETAILED DESCRIPTION

[0061] Exemplary embodiments of the present disclosure are described herein with reference to the accompanying drawings, which are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification. Embodiments of the present disclosure should be considered in a descriptive sense only and not for purposes of limitation. Therefore, it should be understood that various modifications and changes can be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Likewise, it is to be understood that the features implied by the claims are intended to encompass both modifications and enhancements of the specific exemplified embodiments which are claimed.

[0062] A novel metro platform door insulation online monitoring method and system, and an electronic device, of an embodiment of the present disclosure are described below with reference to the accompanying drawings.

[0063] Figure 1 A flowchart of a metro platform door insulation online monitoring method provided by an embodiment of the present disclosure.

[0064] As Figure 1 shown, the method comprises the following steps:

[0065] Step 101, based on the first current sensor, the voltage sensor and the second current sensor, respectively collecting the first current and voltage between the platform door body steel structure and the current collection row, and the second current of the equipotential line, the first current sensor is connected with the current lead wire, the current lead wire is used for connecting the leakage current lead-out device arranged on each upper and lower support connecting piece of the subway platform door with the leakage current collection row, the voltage sensor is arranged between the platform door body steel structure and the current collection row, and the second current sensor is connected on the equipotential line between the subway platform door and the train return rail.

[0066] The platform door body steel structure is the frame of the installed platform door, the first current sensor collects the first current information and sends the collected first current information to the target device, the first current sensor is connected with the current lead wire, one end of the current lead wire is connected with the leakage current lead-out device, and the other end of the current lead wire is connected to the current collection row, the leakage current lead-out device is arranged on at least one upper and lower support connecting piece or at least one upper connecting piece of the platform door; the leakage current on each upper and lower support connecting piece of the subway platform door body steel structure is led out based on the leakage current lead-out device; the leakage current led out by the leakage current lead-out device is introduced into the current collection row through the current lead wire, so that the leakage current flows into the ground through the current collection row.

[0067] In order to obtain the first resistance value of the upper and lower support connecting piece between the platform door body steel structure and the current collection row, the voltage sensor is arranged between the platform door body steel structure and the current collection row, the voltage is collected and the voltage information is sent to the target device; the first resistance value of the upper and lower support connecting piece between the platform door body steel structure and the current collection row is obtained by calculating the first current collected by the first current sensor and the voltage. Specifically, the present disclosure does not limit this.

[0068] Similar to the above process, in order to obtain the overall insulation resistance of the platform door, the second current sensor is connected with the equipotential line in the present disclosure, the second current information is collected, the equipotential line is used for connecting the return rail and the platform door body steel structure to eliminate the potential difference between the two, the second current information is sent to the target device, and the target device calculates the overall insulation resistance value of the platform door based on the collected voltage and the second current, that is, the second resistance value.

[0069] Step 102, according to the first current and the second current and the voltage, the first resistance value of each upper and lower support connecting piece and the second resistance value of the overall platform door are calculated, respectively, the upper and lower support connecting piece includes at least one upper and lower support connecting piece at the bottom of the platform door or at least one upper connecting piece.

[0070] The first current and voltage collected by the first current sensor and the voltage sensor are sent to the insulation state parameter processing device, the first resistance values of the upper and lower support connecting pieces are obtained by the insulation state parameter processing device based on the received first current and voltage, and the first resistance values of the platform doors corresponding to the upper and lower support connecting pieces are obtained.

[0071] The second current information collected by the second current sensor is sent to the insulation state parameter processing device, and the overall insulation resistance value of the platform door, i.e., the second resistance value, is obtained by the insulation state parameter processing device based on the voltage collected by the voltage sensor and the second current.

[0072] In step 103, if the first resistance value is less than the first preset resistance setting value, it is determined that the insulation resistance of the upper and lower support connecting pieces of the subway platform door does not meet the requirements.

[0073] The first resistance values of the upper and lower support connecting pieces obtained by the insulation state parameter processing device are compared with the first preset resistance setting value, and the subway door corresponding to the upper and lower support connecting pieces with a resistance value less than the first preset resistance setting value is determined to be a leakage. The leakage of each platform door is detected. The above is only a demonstrative description, and the present disclosure is not limited in this regard.

[0074] In step 104, if the second resistance value is less than the second preset resistance setting value, it is determined that the overall insulation resistance of the platform door does not meet the requirements.

[0075] The second resistance value of the platform door obtained by the insulation state parameter processing device is compared with the second preset resistance setting value, and the subway door is determined to be a leakage when the second resistance value is less than the second preset resistance setting value.

[0076] The subway platform door insulation online monitoring method provided by the present disclosure is based on a first current sensor, a voltage sensor and a second current sensor, which respectively collect a first current and a voltage between a platform door body steel structure and a current collection row and a second current of an equipotential line, the first current sensor is connected with a current leading wire, the current leading wire is used to connect a leakage current leading-out device arranged on each upper and lower support connecting piece of the subway platform door with the leakage current collection row, the voltage sensor is arranged between the platform door body steel structure and the current collection row, and the second current sensor is connected on the equipotential line between the subway platform door and a train return rail; first resistance values of each upper and lower support connecting piece and a second resistance value of the platform door as a whole are respectively calculated according to the collected first current and second current and voltage, the upper and lower support connecting piece includes at least one upper and lower support connecting piece at the bottom of the platform door or at least one upper connecting piece; if the first resistance value is less than a first preset resistance setting value, it is determined that the insulation resistance of the upper and lower support connecting piece of the subway platform door does not meet the requirements; if the second resistance value is less than a second preset resistance setting value, it is determined that the overall insulation resistance of the platform door does not meet the requirements. Compared with the related art, the voltage sensor, the first current sensor and the second current sensor are used to collect the voltage and the first current between the platform door body steel structure and the current collection row in real time, and the second current of the equipotential line is collected in real time based on the second current sensor; the first resistance of each upper and lower support connecting piece and the second resistance of the platform door as a whole are calculated based on the voltage, the first current and the second current, so that the real-time monitoring of the insulation resistance of the platform door is realized.

[0077] In order to show more intuitively, the devices involved in steps 101 to 103 and the specific implementation process, Figure 2 A monitoring system for the insulation of a subway platform door provided by an embodiment of the present disclosure is shown in Figure 2 The circuit structure of the monitoring system for the insulation of the subway platform door and the connection mode of the required devices are shown, and specific descriptions will be given below.

[0078] As a refinement of the embodiment of the present disclosure, in step 101, when the first current, voltage and second current between the platform door body steel structure and the current collection row and the equipotential line are collected based on the first current sensor, voltage sensor and second current sensor, the following implementation manners can be used, but are not limited thereto, for example: the first current sensor is connected in series with the leakage current lead-out device to collect the first current between the platform door body steel structure and the current collection row; the voltage sensor is connected in parallel between the platform door body steel structure and the current collection row to collect the voltage between the platform door body steel structure and the current collection row; the second current sensor is connected in series on the equipotential line to collect the second current on the equipotential line; and the first current sensor, voltage sensor and second current sensor are connected to the insulation state parameter processing device to realize the establishment of the communication network.

[0079] As a refinement of the above embodiment, the method further includes, but is not limited to, the following implementation manners, for example: the first current collected by the first current sensor, the voltage collected by the voltage sensor and the second current collected by the second current sensor are transmitted to the insulation state parameter processing device; and the first current, second current and voltage are calculated based on the insulation state parameter processing device to obtain the first resistance value of each upper and lower support connecting piece and the second resistance value of the platform door body.

[0080] As a refinement of the above embodiment, the method further includes, but is not limited to, the following implementation manners, for example: when it is determined that the insulation resistance of the upper and lower support connecting piece of the subway platform door does not meet the requirements or the insulation resistance of the platform door body does not meet the requirements, an insulation failure alarm is executed.

[0081] In order to realize the prompt of the insulation failure of the subway door, if the first resistance value of a certain upper and lower support connecting piece calculated based on the insulation state parameter processing device is less than a first preset resistance setting value, it is determined that the subway door corresponding to the upper and lower support connecting piece leaks electricity, and an insulation failure alarm is triggered. If the second resistance value of the platform door body calculated based on the insulation state parameter processing device is less than a second preset resistance setting value, it is determined that the platform door body leaks electricity,

[0082] As a refinement of the above embodiment, the method further includes, but is not limited to, the following implementation manners, for example: after the platform door body leaks electricity, the first current sensor identifier corresponding to the first resistance value is obtained; the corresponding first current sensor is determined according to the first current sensor identifier; the identifier of the upper and lower support connecting piece of the platform door connected to the first current sensor is determined; and when the alarm is executed, the identifier of the upper and lower support connecting piece is output to determine the position of the leakage.

[0083] In order to clearly illustrate the determination process of the electric leakage position, an example is given, for example: when the insulation state parameter processing device detects an electric leakage alarm, the identification of the first current sensor corresponding to the electric leakage resistance is obtained, the corresponding first current sensor is found according to the first current sensor identification, the corresponding upper and lower support connecting pieces of the platform door are determined based on the first current sensor, and the corresponding platform door is found based on the upper and lower support connecting pieces. Further, the determination of the electric leakage position is realized. The disclosure embodiment only provides a possible implementation, and the determination mode of the electric leakage position is not limited.

[0084] In summary, the embodiments of the application can achieve the following effects:

[0085] 1. The disclosure embodiment is based on the voltage sensor, the first current sensor, which collects the voltage and the first current between the platform door body steel structure and the current collection row in real time, and the second current sensor, which collects the second current of the equipotential line in real time; based on the voltage, the first current and the second current, the first resistance of each upper and lower support connecting piece and the total second resistance of the platform door are calculated, so as to realize the real-time monitoring of the insulation resistance of the platform door.

[0086] 2. Based on the first current sensor, the voltage sensor and the second current sensor, a communication network is constructed to realize the transmission of the first current, the second current and the voltage data.

[0087] 3. The insulation state parameter processing device calculates the first resistance value of the upper and lower support connecting pieces and the second resistance value of the platform door based on the received first current, second current and voltage.

[0088] 4. When the subway door has electric leakage, the electric leakage state is alarmed based on the alarm strategy, and the electric leakage position is determined based on the position determination strategy.

[0089] Corresponding to the above-mentioned subway platform door insulation online monitoring method, the application also provides a subway platform door insulation online monitoring device. Since the device embodiment of the application corresponds to the method embodiment described above, the details not disclosed in the device embodiment can be referred to the method embodiment described above, which will not be described in detail in the application.

[0090] Figure 3 A structure diagram of a subway platform door insulation online monitoring device provided by the embodiment of the disclosure is shown in FIG. 1. Figure 3 As shown in FIG. 1, the device comprises:

[0091] The acquisition unit 21 is used for acquiring the first current and voltage between the platform door body steel structure and the current collection row and the second current of the equipotential line based on the first current sensor, the voltage sensor and the second current sensor. The first current sensor is connected with the current lead wire. The current lead wire is used for connecting the leakage current lead-out device arranged on each upper and lower support connecting piece of the subway platform door with the leakage current collection row. The voltage sensor is arranged between the platform door body steel structure and the current collection row. The second current sensor is connected with the equipotential line between the subway platform door and the train return rail.

[0092] The calculation unit 22 is used for calculating the first resistance value of each upper and lower support connecting piece and the second resistance value of the platform door body according to the acquired first current and second current and voltage.

[0093] The first determination unit 23 is used for determining that the insulation resistance of the upper and lower support connecting piece of the subway platform door does not meet the requirements when the first resistance value is less than the first preset resistance setting value.

[0094] The second determination unit 24 is used for determining that the insulation resistance of the platform door body does not meet the requirements when the second resistance value is less than the second preset resistance setting value.

[0095] The subway platform door insulation online monitoring device provided by the present disclosure is based on a first current sensor, a voltage sensor and a second current sensor, which respectively collect a first current and a voltage between a platform door body steel structure and a current collection row and a second current of an equipotential line, the first current sensor is connected with a current lead-out device arranged on each upper and lower support connecting piece of the subway platform door, the current lead-out device is connected with the current collection row, the voltage sensor is arranged between the platform door body steel structure and the current collection row, and the second current sensor is connected on the equipotential line between the subway platform door and a train return rail; first resistance values of each upper and lower support connecting piece and a second resistance value of the platform door as a whole are respectively calculated according to the collected first current and second current and voltage, the upper and lower support connecting piece includes at least one upper and lower support connecting piece at the bottom of the platform door or at least one upper connecting piece; if the first resistance value is less than a first preset resistance setting value, it is determined that the insulation resistance of the upper and lower support connecting piece of the subway platform door does not meet the requirements; and if the second resistance value is less than a second preset resistance setting value, it is determined that the overall insulation resistance of the platform door does not meet the requirements. Compared with the related art, the voltage sensor, the first current sensor and the second current sensor are used to collect the voltage and the first current between the platform door body steel structure and the current collection row in real time, and the second current of the equipotential line is collected in real time based on the second current sensor; the first resistance of each upper and lower support connecting piece and the second resistance of the platform door as a whole are calculated based on the voltage, the first current and the second current, so that the insulation resistance of the platform door is monitored in real time.

[0096] Figure 4 Another structure schematic diagram of the subway platform door insulation online monitoring device provided by the embodiment of the present disclosure is shown in FIG. 2. Figure 4 As shown in FIG. 2, the acquisition unit 21 includes:

[0097] A first acquisition module 211 is used to connect the first current sensor and the current lead-out device in series, so as to collect the first current between the platform door body steel structure and the current collection row.

[0098] A second acquisition module 212 is used to connect the voltage sensor in parallel between the platform door body steel structure and the current collection row, so as to collect the voltage between the platform door body steel structure and the current collection row.

[0099] A third acquisition module 213 is used to connect the second current sensor in series on the equipotential line, so as to collect the second current on the equipotential line.

[0100] A communication module 214 is used to construct a communication network based on the first current sensor, the voltage sensor and the second current sensor, and to communicate with the insulation state parameter processing device.

[0101] Further, in a possible implementation manner of the embodiment, as shown in Figure 4 The communication module 214 is further configured to:

[0102] The first current collected by the first current sensor, the voltage collected by the voltage sensor, and the second current collected by the second current sensor are transmitted to the insulation state parameter processing apparatus.

[0103] The insulation state parameter processing apparatus calculates the first current, the second current, and the voltage to obtain the first resistance value of each upper and lower support connecting piece and the second resistance value of the platform door as a whole.

[0104] Further, in a possible implementation manner of the embodiment, as shown in Figure 4 The apparatus further includes:

[0105] The alarm unit 25 is configured to perform insulation failure alarm when the determination unit determines that the insulation resistance of the upper and lower support connecting pieces of the subway platform door or the insulation resistance of the platform door as a whole does not meet the requirements.

[0106] Further, in a possible implementation manner of the embodiment, as shown in Figure 4 The alarm unit 25 further includes:

[0107] The acquisition module 251 is configured to acquire the first current sensor identifier corresponding to the first resistance value after the leakage of the subway platform door.

[0108] The first determination module 252 is configured to determine the corresponding first current sensor according to the first current sensor identifier.

[0109] The second determination module 253 is configured to determine the identifier of the upper and lower support connecting pieces of the platform door connected to the first current sensor.

[0110] The third determination module 254 is configured to output the identifier of the upper and lower support connecting pieces when performing alarm, so as to determine the leakage position.

[0111] The embodiment of the present disclosure provides a subway platform door insulation online monitoring system. The system includes the subway platform door insulation online apparatus as shown in Figure 3 or Figure 4 The subway platform door insulation online apparatus.

[0112] It should be noted that the foregoing explanation and description of the method embodiment are also applicable to the apparatus of the present embodiment, and the principle is the same. In the present embodiment, no limitation is made.

[0113] According to the embodiments of the present disclosure, the present disclosure further provides an electronic device, a readable storage medium, and a computer program product.

[0114] Figure 5 A schematic block diagram of an example electronic device 300 that can be used to implement embodiments of the present disclosure is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device may also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the present disclosure described and / or claimed herein.

[0115] like Figure 5 As shown, device 300 includes a computing unit 301, which can perform various appropriate actions and processes based on a computer program stored in ROM (Read-Only Memory) 302 or a computer program loaded from storage unit 308 into RAM (Random Access Memory) 303. RAM 303 can also store various programs and data required for the operation of device 300. The computing unit 301, ROM 302, and RAM 303 are interconnected via bus 304. I / O (Input / Output) interface 305 is also connected to bus 304.

[0116] Multiple components in device 300 are connected to I / O interface 305, including: input unit 303, such as keyboard, mouse, etc.; output unit 307, such as various types of monitors, speakers, etc.; storage unit 308, such as disk, optical disk, etc.; and communication unit 309, such as network card, modem, wireless transceiver, etc. Communication unit 309 allows device 300 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0117] The computing unit 301 can be various general and / or special purpose processing components with processing and computing capabilities. Some examples of the computing unit 301 include, but are not limited to, a CPU (Central Processing Unit), a GPU (Graphic Processing Units), various special-purpose AI (Artificial Intelligence) computing chips, various computing units running machine learning model algorithms, a DSP (Digital Signal Processor), and any appropriate processor, controller, microcontroller, etc. The computing unit 301 performs various methods and processes described above, such as the metro station platform door insulation online monitoring method. For example, in some embodiments, the metro station platform door insulation online monitoring method can be implemented as a computer software program, which is tangibly embodied in a machine-readable medium, such as the storage unit 308. In some embodiments, part or all of the computer program can be loaded and / or installed onto the apparatus 300 via the ROM 302 and / or the communication unit 309. When the computer program is loaded onto the RAM 303 and executed by the computing unit 301, one or more steps of the methods described above can be performed. Alternatively, in other embodiments, the computing unit 301 can be configured to perform the aforementioned metro station platform door insulation online monitoring method by any other appropriate means, such as by means of firmware.

[0118] Various implementations of the systems and techniques described above can be realized in digital electronic circuitry, integrated circuitry, a Field Programmable Gate Array (FPGA), an Application-Specific Integrated Circuit (ASIC), an Application Specific Standard Product (ASSP), a System on Chip (SoC), a Complex Programmable Logic Device (CPLD), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include implementation in one or more computer programs that are executable and / or interpretable on a programmable system including at least one programmable processor, which can be special or general purpose, coupled to receive data and instructions from, and to transmit data and instructions to, a storage system, at least one input device, and at least one output device.

[0119] Program code for carrying out methods of the present disclosure can be written in any combination of one or more programming languages. The program code can be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the program code, when executed by the processor or controller, produces the functions / operations specified in the flowcharts and / or block diagrams. The program code can be executed entirely on a machine, partially on a machine, partially on a machine as a stand-alone software package, partially on a machine and partially on a remote machine or entirely on a remote machine or server.

[0120] In the context of the present disclosure, a machine-readable medium can be a tangible medium that can contain or store program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. Machine-readable storage medium can include but are 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 the machine-readable storage medium would include one or more lines of electrical wire, portable computer diskette, hard disk, RAM, ROM, EPROM (Electrically Programmable Read-Only-Memory) or flash memory, fiber optics, CD-ROM (Compact Disc Read-Only Memory), optical storage device, magnetic storage device, or any suitable combination of the foregoing.

[0121] 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., a CRT (Cathode-Ray Tube) or LCD (Liquid Crystal Display) monitor) for displaying information to the user and a keyboard and a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the computer. Other kinds of devices can be used to provide for interaction with a user as well; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form, including acoustic, speech, or tactile input.

[0122] The systems and techniques described herein can be implemented in a computing system that includes a back end 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 herein, or any combination of such back end, 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 a LAN (Local Area Network), a WAN (Wide Area Network), the Internet, and a blockchain network.

[0123] The computer system can include clients and servers. The clients and servers are generally remote from each other and typically interact through a communication network. The relationship of client and server is one of communication and distribution, with the server receiving requests from the client and transmitting responses via the communication network. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system, to solve the defects of large management difficulty and weak business scalability in traditional physical host and VPS service ("Virtual Private Server", or simply "VPS"). The server can also be a server of a distributed system, or a server combined with a blockchain.

[0124] It should be noted that artificial intelligence is a discipline that studies enabling computers to simulate some thinking processes and intelligent behaviors of humans (such as learning, reasoning, thinking, planning, etc.), both hardware and software technologies. Artificial intelligence hardware technology generally includes technologies such as sensors, special artificial intelligence chips, cloud computing, distributed storage, big data processing, etc.; artificial intelligence software technology mainly includes computer vision technology, speech recognition technology, natural language processing technology, and machine learning / deep learning, big data processing technology, knowledge graph technology, etc. several major directions.

[0125] It should be understood that the various forms of flow shown above can be used to reorder, add or delete steps. For example, the steps described in the present disclosure can be executed in parallel, sequentially, or in a different order, as long as the desired results of the technical solutions of the present disclosure can be achieved, and the present disclosure is not limited herein.

[0126] The above detailed description does not limit the scope of the disclosure. Various modifications, combinations, sub-combinations and alternatives can be made to the detailed description. Any modification, equivalent replacement and improvement etc. made within the spirit and principle of the disclosure shall be included in the scope of the disclosure.

Claims

1. A method for online monitoring of the insulation of subway platform doors, characterized in that, include: Based on a first current sensor, a voltage sensor, and a second current sensor, the first current and voltage between the steel structure of the platform door and the current collector, as well as the second current of the equipotential line, are collected respectively. The first current sensor is connected to a lead wire, which is used to connect the leakage current lead-out device installed on each upper and lower support connector of the platform door to the leakage current collector. The voltage sensor is installed between the steel structure of the platform door and the current collector. The second current sensor is connected to the equipotential line between the platform door and the train return rail. Based on the first current and the second current with the same voltage, the first resistance value of each upper and lower support connector and the second resistance value of the platform door as a whole are calculated respectively. The upper and lower support connectors include at least one lower and upper support connector at the bottom of the platform door or at least one upper connector. If the first resistance value is less than the first preset resistance setting value, it is determined that the insulation resistance of the upper and lower support connectors of the subway platform door does not meet the requirements, and it is determined that the subway door corresponding to the upper and lower support connectors is leaking current, and an insulation failure alarm is triggered. If the second resistance value is less than the second preset resistance setting value, it is determined that the overall insulation resistance of the platform door does not meet the requirements, and the overall leakage of the platform door is determined, and an insulation failure alarm is triggered. The method of collecting the first current and voltage between the steel structure of the platform door and the current collector, and the second current of the equipotential line, based on the first current sensor, voltage sensor, and second current sensor, includes: The first current sensor is connected in series with the leakage current lead-out device to collect the first current between the steel structure of the platform door and the current collector. The voltage sensor is connected in parallel between the steel structure of the platform door and the current busbar to collect the voltage between the steel structure of the platform door and the current busbar. A second current sensor is connected in series with the equipotential line to collect the second current on the equipotential line. A communication network is constructed based on the first current sensor, the voltage sensor, and the second current sensor to communicate with the insulation state parameter processing device. The implementation of insulation failure alarms includes: After a leakage occurs at the subway platform door, the identifier of the first current sensor corresponding to the first resistance value is obtained and calculated. The corresponding first current sensor is determined based on the identifier of the first current sensor. The identification of the upper and lower support connectors of the connected platform door is determined based on the first current sensor. When an alarm is triggered, the identifiers of the upper and lower support connectors are output to determine the location of the leakage.

2. The method according to claim 1, characterized in that, The construction of a communication network based on the first current sensor, voltage sensor, and second current sensor for communication with the insulation state parameter processing device includes: The first current collected by the first current sensor, the voltage collected by the voltage sensor, and the second current collected by the second current sensor are transmitted to the insulation state parameter processing device. Based on the insulation state parameter processing device, the first current, the second current and the voltage are calculated to obtain the first resistance value of each upper and lower support connector and the second resistance value of the platform door as a whole.

3. An online monitoring device for the insulation of subway platform doors, characterized in that, include: The data acquisition unit is used to acquire the first current and voltage between the steel structure of the platform door and the current collector, and the second current of the equipotential line, based on the first current sensor, the voltage sensor and the second current sensor. The first current sensor is connected to the lead-in wire, which is used to connect the leakage current lead-out device installed on each upper and lower support connector of the platform door to the leakage current collector. The voltage sensor is installed between the steel structure of the platform door and the current collector. The second current sensor is connected to the equipotential line between the platform door and the train return rail. The calculation unit is used to calculate the first resistance value of each upper and lower support connector and the second resistance value of the platform door as a whole based on the collected first current and second current with the same voltage. The upper and lower support connectors include at least one lower and lower support connector at the bottom of the platform door or at least one upper connector. The first determining unit determines that the insulation resistance of the upper and lower support connectors of the subway platform door does not meet the requirements when the first resistance value is less than the first preset resistance setting value. The second determining unit determines that the overall insulation resistance of the platform door does not meet the requirements when the second resistance value is less than the second preset resistance setting value. The acquisition unit includes: The first acquisition module is used to connect the first current sensor and the leakage current lead-out device in series to acquire the first current between the steel structure of the platform door and the current collector. The second acquisition module is used to connect the voltage sensor in parallel between the steel structure of the platform door and the current busbar to acquire the voltage between the steel structure of the platform door and the current busbar. The third acquisition module is used to connect the second current sensor in series with the equipotential line to acquire the second current on the equipotential line. The communication module is used to build a communication network based on the first current sensor, the voltage sensor and the second current sensor, and to communicate with the insulation state parameter processing device. The device further includes: An alarm unit is used to execute an insulation failure alarm when the determining unit determines that the insulation resistance of the upper and lower support connectors of the subway platform door does not meet the requirements or the overall insulation resistance of the platform door does not meet the requirements. The alarm unit includes: The acquisition module is used to acquire the identifier of the first current sensor corresponding to the first resistance value after the subway platform door leaks current. The first determining module is used to determine the corresponding first current sensor based on the first current sensor identifier; The second determining module is used to determine the identifiers of the upper and lower support connectors of the connected platform door based on the first current sensor. The third determination module is used to output the identifier of the upper and lower support connectors when an alarm is triggered, so as to determine the location of the leakage.

4. An online monitoring system for the insulation of subway platform doors, characterized in that, The system includes the online monitoring device for the insulation of subway platform doors as described in claim 3.

5. An electronic device, characterized in that, include: At least one processor; as well as A memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-2.

6. A non-transitory computer-readable storage medium storing computer instructions, characterized in that, The computer instructions are used to cause the computer to perform the method according to any one of claims 1-2.

7. A computer program product, characterized in that, Includes a computer program that, when executed by a processor, implements the method according to any one of claims 1-2.

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