CN110134832B

CN110134832B - Equipment data measuring method and equipment in subway PSCADA system

Info

Publication number: CN110134832B
Application number: CN201910328416.9A
Authority: CN
Inventors: 邹大云; 汪韩; 解凯; 陈根军; 赵月辉; 张志学; 刘佩; 张向军
Original assignee: NR Electric Co Ltd; NR Engineering Co Ltd
Current assignee: NR Electric Co Ltd; NR Engineering Co Ltd
Priority date: 2019-04-23
Filing date: 2019-04-23
Publication date: 2021-06-18
Anticipated expiration: 2039-04-23
Also published as: CN110134832A

Abstract

The invention discloses a method for measuring equipment data in a subway PSCADA system, which comprises the following steps: acquiring equipment information of target equipment; matching the equipment information of the target equipment with a preset equipment information database, and searching the equipment information matched with the equipment information of the target equipment in the equipment information database; when the device information of the target device is successfully matched with the device information in the device information database, determining the device type corresponding to the matched device information in the device information database as the type of the target device, and acquiring the measurement data of the target device based on the measurement information; and determining a storage area according to the type of the target equipment, and storing the measured data of the target equipment in the storage area according to the corresponding attribute of the measured data. The invention also discloses equipment data measuring equipment and a computer storage medium in the subway PSCADA system.

Description

Equipment data measuring method and equipment in subway PSCADA system

Technical Field

The invention relates to the power technology, in particular to a method and equipment for measuring equipment data in a subway PSCADA system.

Background

In the field of subway Power dispatching, measurement Data of a Power supply system is stored in a subway Power Acquisition And monitoring (PSCADA) system, And other business systems or applications need to acquire the measurement Data from the PSCADA system of a subway if the measurement Data of the Power supply system is needed. At present, interactive data between a subway PSCADA system and other systems or applications can only be forwarded by using a communication protocol, so that the workload is large and the efficiency is low.

How to improve the efficiency of interaction between the measured data of the equipment in the subway PSCADA system and other systems or applications is a problem to be solved at present.

Disclosure of Invention

To solve the above technical problems, embodiments of the present invention provide a method and an apparatus for measuring device data in a subway PSCADA system, and a computer storage medium.

The embodiment of the invention provides a method for measuring equipment data in a subway PSCADA system, which comprises the following steps:

sending a measurement instruction to measurement equipment of target equipment, and acquiring equipment information of the target equipment based on measurement information when receiving the measurement information sent by the measurement equipment and used for measuring the target equipment;

matching the equipment information of the target equipment with a preset equipment information database, and searching the equipment information matched with the equipment information of the target equipment in the equipment information database;

when the device information of the target device is successfully matched with the device information in the device information database, determining the device type corresponding to the matched device information in the device information database as the type of the target device;

acquiring measurement data of the target equipment based on the measurement information;

and determining a storage area according to the type of the target equipment, and storing the measured data of the target equipment in the storage area according to the corresponding attribute of the measured data.

In the above scheme, the method further comprises:

establishing a first preset field table, wherein the first preset field table comprises preset fields corresponding to equipment information of equipment in a subway PSCADA system;

when the matching between the device information of the target device and the device information in the device information database fails, acquiring a preset field corresponding to the device information of the target device in the first preset field table according to the device information of the target device, and determining the preset field as the type of the target device.

In the above scheme, the method further comprises:

acquiring corresponding measurement data in the storage area according to the type of the target equipment and the attribute of preset measurement data;

and determining the type of the target equipment as a type field, determining the attribute of the preset measurement data as an attribute field, determining the corresponding measurement data as a data field, and packaging the data field into a measurement data file.

In the above scheme, the method further comprises:

when the device information of the target device is successfully matched with the device information in the device information database, determining the type of a device measuring end corresponding to the matched device information in the device information database as the type of the target device measuring end;

correspondingly, the obtaining of the metrology data of the target device based on the metrology information includes: acquiring measurement data of a measurement end of the target equipment based on the measurement information;

the determining a storage area according to the type of the target device and storing the measured data of the target device in the storage area according to the corresponding attribute of the measured data includes: and determining a storage area according to the type of the target equipment, and storing the measurement data of the measurement end of the target equipment in the storage area according to the corresponding attribute of the measurement data.

In the above scheme, the method further comprises:

establishing a second preset field table, wherein the second preset field table comprises preset fields corresponding to equipment information of equipment in the subway PSCADA system;

when the matching between the device information of the target device and the device information in the device information database fails, acquiring a preset field corresponding to the device information of the target device in the second preset field table according to the device information of the target device, and determining the preset field as the type of the measuring terminal of the target device.

In the above scheme, the method further comprises:

acquiring corresponding measurement data in the storage area according to the type of the measurement end of the target device and the attribute of preset measurement data;

and determining the type of the measuring end of the target equipment as a type field, determining the attribute of the preset measuring data as an attribute field, determining the corresponding measuring data as a data field, and packaging the data field into a measuring data file.

The embodiment of the invention provides equipment data measuring equipment in a subway PSCADA system, which comprises:

the control unit is used for sending a measurement instruction to measurement equipment of target equipment, and acquiring equipment information of the target equipment based on measurement information when receiving the measurement information sent by the measurement equipment and used for measuring the target equipment;

the first information processing unit is used for matching the equipment information of the target equipment with a preset equipment information database and searching the equipment information matched with the equipment information of the target equipment in the equipment information database;

the first information processing unit is further configured to determine, when the device information of the target device is successfully matched with the device information in the device information database, a device type corresponding to the matched device information in the device information database as the type of the target device;

a data acquisition unit, configured to acquire metrology data of the target device based on the metrology information;

and the storage unit is used for determining a storage area according to the type of the target equipment and storing the measured data of the target equipment in the storage area according to the corresponding attribute of the measured data.

In the above solution, the apparatus further includes:

the system comprises a first field unit, a second field unit and a third field unit, wherein the first field unit is used for establishing a first preset field table, and the first preset field table comprises preset fields corresponding to equipment information of equipment in a subway PSCADA system;

the first information processing unit is further configured to, when matching between the device information of the target device and the device information in the device information database fails, obtain a preset field corresponding to the device information of the target device in the first preset field table according to the device information of the target device, and determine the preset field as the type of the target device.

In the above solution, the apparatus further includes:

the first reading unit is used for acquiring corresponding measurement data in the storage area according to the type of the target equipment and the attribute of preset measurement data;

a first packaging unit, configured to determine the type of the target device as a type field, determine the attribute of the preset measurement data as an attribute field, determine the corresponding measurement data as a data field, and package the measurement data as a measurement data file.

In the above solution, the apparatus further includes:

a second information processing unit, configured to determine, when the device information of the target device is successfully matched with the device information in the device information database, a type of a device measurement end corresponding to the matched device information in the device information database as the type of the target device measurement end;

the data processing unit is further configured to acquire measurement data of a measurement end of the target device based on the measurement information;

the storage unit is further configured to determine a storage area according to the type of the target device, and store the measurement data of the measurement end of the target device in the storage area according to the attribute corresponding to the measurement data.

In the above solution, the apparatus further includes:

the second field unit is used for establishing a second preset field table, wherein the second preset field table comprises preset fields corresponding to equipment information of equipment in the subway PSCADA system;

the second information processing unit is further configured to, when matching between the device information of the target device and the device information in the device information database fails, obtain a preset field corresponding to the device information of the target device in the second preset field table according to the device information of the target device, and determine the preset field as a type of a measurement end of the target device.

In the above solution, the apparatus further includes:

the second reading unit is used for acquiring corresponding measured data in the storage area according to the type of the measuring end of the target device and the attribute of preset measured data;

and the second packaging unit is used for determining the type of the measuring end of the target equipment as a type field, determining the attribute of the preset measuring data as an attribute field, determining the corresponding measuring data as a data field and packaging the data field into a measuring data file.

An embodiment of the present invention provides a computer storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the method for measuring device data in any of the foregoing subway PSCADA systems.

In the technical scheme provided by the embodiment of the invention, the type of the target equipment in the subway PSCADA system is determined, the storage area is determined according to the type of the target equipment, the measurement data of the target equipment is stored in the storage area according to the attribute corresponding to the measurement data, and the corresponding measurement data can be acquired according to the type of the target equipment and the attribute, so that the retrieval efficiency of the measurement data in the subway PSCADA system is improved, and the interaction efficiency of the subway PSCADA system when interacting with other systems or applications is further improved.

Drawings

The drawings illustrate generally, by way of example, but not by way of limitation, various embodiments discussed herein.

Fig. 1 is a schematic flow chart illustrating an apparatus data measurement method in a metro PSCADA system according to an embodiment of the present invention;

fig. 2 is a schematic flow chart illustrating an apparatus data measurement method in a metro PSCADA system according to an embodiment of the present invention;

fig. 3 is a schematic flowchart of an apparatus data measurement method in a metro PSCADA system according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of equipment data measuring equipment in a subway PSCADA system according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of equipment data measuring equipment in a subway PSCADA system according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of equipment data measuring equipment in a subway PSCADA system according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a dc traction power supply system for a subway according to an embodiment of the present invention;

fig. 8 is a flowchart illustrating an E language description method of metro PSCADA system measurement data according to an embodiment of the present invention.

Detailed Description

So that the manner in which the features and aspects of the embodiments of the present invention can be understood in detail, a more particular description of the embodiments of the invention, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings.

The embodiment of the invention provides a method for measuring equipment data in a subway PSCADA system, wherein the flow of the method for measuring the equipment data in the subway PSCADA system is shown in FIG. 1, and the method comprises the following steps:

step 101, sending a measurement instruction to a measurement device of a target device, and acquiring device information of the target device based on measurement information when receiving the measurement information sent by the measurement device to the target device for measurement.

Wherein, the target device includes a target device collected and monitored in the subway PSCADA system, for example: the system comprises an alternating current line, an alternating current bus, an alternating current switch disconnecting link, a transformer, a generator, an alternating current load, a reactive compensator, a direct current bus, a direct current switch disconnecting link, a rectifier unit, an inversion feedback device, a contact network, a steel rail or a train connected to the contact network and the like. The measuring equipment comprises equipment used for measuring the electrical parameters of target equipment in a subway PSCADA system, such as: digital power parameter measuring instruments, one-way power parameter measuring instruments, three-phase power parameter measuring instruments and the like.

In some embodiments, the sending the measurement instruction to the measurement device of the target device specifically includes: sending a single measurement instruction to the measurement equipment of the target equipment; or sending a measurement instruction for measuring according to a fixed period to the measurement equipment of the target equipment; or sending a measurement instruction for measuring according to a fixed period in a period of time to the measurement equipment of the target equipment.

In some embodiments, the obtaining the device information of the target device based on the measurement information specifically includes: in a PSCADA system of a subway, a measurement device is usually connected to a designated target device, and is used to measure an electrical parameter of the designated target device, where the measurement device and the target device may be in one-to-one correspondence, or one measurement device may test multiple target devices. In some embodiments, when the device for receiving the measurement information in the subway PSCADA system detects a level change of a transmission end corresponding to the measurement device, the measurement device corresponding to the received measurement information is determined according to a correspondence between the transmission end and the measurement device stored in the subway PSCADA system, and the device information of the corresponding target device is determined according to the measurement device. In some embodiments, measurement data in the subway PSCADA system is transmitted based on a communication protocol, the measurement information includes a communication address corresponding to the measurement device, the measurement device is determined according to the communication address obtained by analyzing the measurement information, and the device information of the target device is determined according to the measurement device.

And 102, matching the equipment information of the target equipment with a preset equipment information database, and searching the equipment information matched with the equipment information of the target equipment in the equipment information database.

In some embodiments, the preset device information base includes: a database of all operational equipment information contained in the power system. Specifically, the device corresponding to the preset device information base includes: the system comprises an alternating current circuit, an alternating current bus, an alternating current switch knife switch, a transformer, a generator, an alternating current load, a reactive compensator, a direct current bus and a direct current switch knife switch.

Step 103, when the device information of the target device is successfully matched with the device information in the device information database, determining the device type corresponding to the matched device information in the device information database as the type of the target device.

Wherein a type comprises a data type, and the definition of the data type in the data structure is a set of values with the same property and a collective name of a set of operations defined on the set of values.

And 104, acquiring the measurement data of the target equipment based on the measurement information.

And analyzing the measurement information to obtain measurement data of the target equipment.

And 105, determining a storage area according to the type of the target equipment, and storing the measured data of the target equipment in the storage area according to the corresponding attribute of the measured data.

Wherein the storage area includes: a database corresponding to the subway PSCADA system or a database specified by the subway PSCADA system. And determining a storage area according to the type of the target equipment, wherein the storage area can be used as the name of a database form according to the type of the target equipment so as to facilitate retrieval when the measurement data of the target equipment is acquired.

The storage area is determined according to the type of the target device, so that when the measurement data of the target device needs to be acquired, the measurement data of the target device can be acquired in the corresponding storage area according to the type of the target device, for example, the name of a corresponding form in a database is retrieved according to the type of the target device, and the measurement data of the target device under the form is acquired.

The embodiment of the invention provides a method for measuring equipment data in a subway PSCADA system, wherein the flow of the method for measuring the equipment data in the subway PSCADA system is shown in FIG. 2, and the method comprises the following steps:

step 201, sending a measurement instruction to a measurement device of a target device, and acquiring device information of the target device based on measurement information when receiving measurement information sent by the measurement device to the target device for measurement.

Step 202, matching the device information of the target device with a preset device information database, and searching the device information matched with the device information of the target device in the device information database.

In some embodiments, the preset device information base includes: a database of device information of all operating devices contained in the power system.

Step 203, when the device information of the target device is successfully matched with the device information in the device information database, determining the device type corresponding to the matched device information in the device information database as the type of the target device.

Step 204, obtaining the measurement data of the target device based on the measurement information.

Step 205, determining a storage area according to the type of the target device, and storing the measured data of the target device in the storage area according to the corresponding attribute of the measured data.

In some embodiments, the above method further comprises:

step 206, establishing a first preset field table, wherein the first preset field table includes preset fields corresponding to the device information of the devices in the subway PSCADA system.

In some embodiments, the rule for establishing the first preset field table comprises: according to the equipment information of the equipment in the subway PSCADA system, the name of the equipment in the system is defined, and the name of the equipment in the system is used as a preset field of the equipment.

Step 207, when the matching between the device information of the target device and the device information in the device information database fails, acquiring a preset field corresponding to the device information of the target device in the first preset field table according to the device information of the target device, and determining the preset field as the type of the target device.

By determining the preset field as the type of the target equipment, the type of the target equipment which cannot be determined due to the failure of matching in the equipment information database is determined, a storage area is conveniently determined according to the type when the measured data of the target equipment is stored, the measured data is further conveniently retrieved, and the data interaction efficiency is improved.

In some embodiments, the above method further comprises:

and 208, acquiring corresponding measurement data in the storage area according to the type of the target equipment and the attribute of preset measurement data.

Step 209, determine the type of the target device as a type field, determine the attribute of the preset metrology data as an attribute field, determine the corresponding metrology data as a data field, and package the data field as a metrology data file.

In some embodiments, the step 209 specifically includes: and determining the type of the target equipment as a type field, determining the attribute of the preset measurement data as an attribute field, determining the corresponding measurement data as a data field, and encapsulating according to the E language rule to obtain a measurement data file described by the E language. The application of the E language in the power system is wide, and the method is a simple and efficient method for other systems related to the power system to use through the measurement data file described by the E language.

An apparatus data measurement method in a metro PSCADA system according to an embodiment of the present invention is shown in fig. 3, where the method includes:

step 301, sending a measurement instruction to a measurement device of a target device, and acquiring device information of the target device based on measurement information when receiving measurement information sent by the measurement device to the target device for measurement.

Step 302, matching the device information of the target device with a preset device information database, and searching the device information matched with the device information of the target device in the device information database.

Step 303, when the device information of the target device is successfully matched with the device information in the device information database, determining the device type corresponding to the matched device information in the device information database as the type of the target device.

Step 304, obtaining the measurement data of the target device based on the measurement information.

Step 305, determining a storage area according to the type of the target device, and storing the measured data of the target device in the storage area according to the corresponding attribute of the measured data.

In some embodiments, the above method further comprises:

step 306, when the device information of the target device is successfully matched with the device information in the device information database, determining the type of the device measuring terminal corresponding to the matched device information in the device information database as the type of the target device measuring terminal.

The target equipment measuring terminal comprises a collecting terminal which is used for collecting and monitoring measuring equipment to obtain measuring information of the target equipment when the subway PSCADA system collects and monitors the target equipment. The number of the target device measurement ends may be multiple, for example: the measuring ends of the rectifier unit elements comprise an alternating current side, a direct current positive side and a direct current positive side of the rectifier unit, and one rectifier unit is provided with three measuring ends. The number of the measurement terminals of the target device is only an example, and is not a limitation to the scope of the present invention, and the number of the measurement terminals may be different according to the nature or measurement requirements of different devices.

Correspondingly, the step 304 further includes: and acquiring measurement data of the measurement end of the target equipment based on the measurement information.

And analyzing the measurement information, and acquiring measurement data of the measurement end of the target equipment.

In some embodiments, the step 305 further includes: and determining a storage area according to the type of the target equipment, and storing the measurement data of the measurement end of the target equipment in the storage area according to the corresponding attribute of the measurement data.

In some embodiments, the above method further comprises:

step 307, establishing a second preset field table, where the second preset field table includes preset fields corresponding to device information of devices in the subway PSCADA system.

In some embodiments, the rule for establishing the second preset field table includes: determining a measuring end of the equipment according to the equipment information of the equipment in the subway PSCADA system, defining the name of the measuring end of the equipment in the system, and taking the name of the measuring end of the equipment in the system as a preset field of the equipment.

Step 308, when the matching between the device information of the target device and the device information in the device information database fails, acquiring a preset field corresponding to the device information of the target device in the second preset field table according to the device information of the target device, and determining the preset field as the type of the measuring terminal of the target device.

By determining the preset field as the type of the target equipment measuring end, the type of the target equipment measuring end which fails to be matched in the equipment information database and cannot be determined is determined, the storage area is conveniently determined according to the type when the measuring data of the target equipment measuring end is stored, the retrieval of the measuring data is further facilitated, and the data interaction efficiency is improved.

In some embodiments, the above method further comprises:

step 309, obtaining the corresponding measurement data in the storage area according to the type of the measurement end of the target device and the attribute of the preset measurement data.

Step 310, determining the type of the measurement end of the target device as a type field, determining the attribute of the preset measurement data as an attribute field, determining the corresponding measurement data as a data field, and packaging the data field into a measurement data file.

In some embodiments, the step 310 specifically includes: and determining the type of the target equipment measuring end as a type field, determining the attribute of the preset measuring data as an attribute field, determining the corresponding measuring data as a data field, and packaging according to the E language rule to obtain a measuring data file described by the E language. The application of the E language in the power system is wide, and the method is a simple and efficient method for other systems related to the power system to use through the measurement data file described by the E language.

An apparatus for measuring data of a device in a metro PSCADA system according to an embodiment of the present invention is shown in fig. 4, where the apparatus for measuring data of a device in a metro PSCADA system according to an embodiment of the present invention includes: a control unit 41, a first information processing unit 42, a data acquisition unit 43, and a storage unit 44. Wherein:

the control unit 41 is configured to send a measurement instruction to a measurement device of a target device, and when receiving measurement information measured by the target device and sent by the measurement device, obtain device information of the target device based on the measurement information.

The first information processing unit 42 is configured to match the device information of the target device with a preset device information database, and search the device information database for device information that matches the device information of the target device.

The first information processing unit 42 is further configured to determine, when the device information of the target device is successfully matched with the device information in the device information database, a device type corresponding to the matched device information in the device information database as the type of the target device.

The data obtaining unit 43 is configured to obtain metrology data of the target device based on the metrology information; and analyzing the measurement information to obtain measurement data of the target equipment.

The storage unit 44 is configured to determine a storage area according to the type of the target device, and store the measured data of the target device in the storage area according to an attribute corresponding to the measured data.

An apparatus for measuring data of a device in a metro PSCADA system according to an embodiment of the present invention is shown in fig. 5, where the apparatus for measuring data of a device in a metro PSCADA system according to an embodiment of the present invention includes: a control unit 51, a first information processing unit 52, a data acquisition unit 53, a storage unit 54, and a first field unit 55. Wherein:

the control unit 51 is configured to send a measurement instruction to a measurement device of a target device, and when receiving measurement information measured by the target device and sent by the measurement device, obtain device information of the target device based on the measurement information.

The first information processing unit 52 is configured to match the device information of the target device with a preset device information database, and search the device information database for device information that matches the device information of the target device; in some embodiments, the preset device information base includes: a database of device information of all operating devices contained in the power system.

The first information processing unit 52 is further configured to determine, when the device information of the target device is successfully matched with the device information in the device information database, a device type corresponding to the matched device information in the device information database as the type of the target device; wherein a type comprises a data type, and the definition of the data type in the data structure is a set of values with the same property and a collective name of a set of operations defined on the set of values.

The data acquiring unit 53 is configured to acquire metrology data of the target device based on the metrology information; and analyzing the measurement information to obtain measurement data of the target equipment.

The storage unit 54 is configured to determine a storage area according to the type of the target device, and store the measured data of the target device in the storage area according to an attribute corresponding to the measured data. Wherein the storage area includes: a database corresponding to the subway PSCADA system or a database specified by the subway PSCADA system. And determining a storage area according to the type of the target equipment, wherein the storage area can be used as the name of a database form according to the type of the target equipment so as to facilitate retrieval when the measurement data of the target equipment is acquired.

The first field unit 55 is configured to establish a first preset field table, where the first preset field table includes preset fields corresponding to device information of devices in the subway PSCADA system; in some embodiments, the rule for establishing the first preset field table comprises: according to the equipment information of the equipment in the subway PSCADA system, the name of the equipment in the system is defined, and the name of the equipment in the system is used as a preset field of the equipment.

The first information processing unit 52 is further configured to, when matching between the device information of the target device and the device information in the device information database fails, obtain a preset field corresponding to the device information of the target device in the first preset field table according to the device information of the target device, and determine the preset field as the type of the target device.

In some embodiments, the above apparatus further comprises: a first reading unit 56 and a first packing unit 57. Wherein:

the first reading unit 56 is configured to obtain the corresponding measured data in the storage area according to the type of the target device and the attribute of the preset measured data.

The first encapsulating unit 57 is configured to determine the type of the target device as a type field, determine the attribute of the preset measurement data as an attribute field, determine the corresponding measurement data as a data field, and encapsulate the measurement data as a measurement data file. Further, the method is specifically configured to determine the type of the target device as a type field, determine the attribute of the preset measurement data as an attribute field, determine the corresponding measurement data as a data field, and package the data field according to the E language rule to obtain a measurement data file described in the E language. The application of the E language in the power system is wide, and the method is a simple and efficient method for other systems related to the power system to use through the measurement data file described by the E language.

An apparatus for measuring data of a device in a metro PSCADA system according to an embodiment of the present invention is shown in fig. 6, where the apparatus for measuring data of a device in a metro PSCADA system according to an embodiment of the present invention includes: a control unit 61, a first information processing unit 62, a data acquisition unit 63, a storage unit 64, and a second information processing unit 65. Wherein:

the control unit 61 is configured to send a measurement instruction to a measurement device of a target device, and when receiving measurement information measured by the target device and sent by the measurement device, obtain device information of the target device based on the measurement information.

The first information processing unit 62 is configured to match the device information of the target device with a preset device information database, and search the device information database for device information that matches the device information of the target device. In some embodiments, the preset device information base includes: a database of device information of all operating devices contained in the power system.

The first information processing unit 62 is further configured to determine, when the device information of the target device is successfully matched with the device information in the device information database, a device type corresponding to the matched device information in the device information database as the type of the target device. Wherein a type comprises a data type, and the definition of the data type in the data structure is a set of values with the same property and a collective name of a set of operations defined on the set of values.

The data obtaining unit 63 is configured to obtain metrology data of the target device based on the metrology information; and analyzing the measurement information to obtain measurement data of the target equipment.

The storage unit 64 is configured to determine a storage area according to the type of the target device, and store the measurement data of the target device in the storage area according to an attribute corresponding to the measurement data. Wherein the storage area includes: a database corresponding to the subway PSCADA system or a database specified by the subway PSCADA system. And determining a storage area according to the type of the target equipment, wherein the storage area can be used as the name of a database form according to the type of the target equipment so as to facilitate retrieval when the measurement data of the target equipment is acquired.

The second information processing unit 65 is configured to determine, when the device information of the target device is successfully matched with the device information in the device information database, a type of a device measurement port corresponding to the matched device information in the device information database as the type of the target device measurement port. The target equipment measuring terminal comprises a collecting terminal which is used for collecting and monitoring measuring equipment to obtain measuring information of the target equipment when the subway PSCADA system collects and monitors the target equipment. The number of the target device measurement ends may be multiple, for example: the measuring ends of the rectifier unit elements comprise an alternating current side, a direct current positive side and a direct current positive side of the rectifier unit, and one rectifier unit is provided with three measuring ends. The number of the measurement terminals of the target device is only an example, and is not a limitation to the scope of the present invention, and the number of the measurement terminals may be different according to the nature or measurement requirements of different devices.

In some embodiments, the above apparatus further comprises: a second field element 66. Wherein:

and a second field unit 66, configured to establish a second preset field table, where the second preset field table includes preset fields corresponding to device information of devices in the subway PSCADA system. In some embodiments, the rule for establishing the second preset field table includes: determining a measuring end of the equipment according to the equipment information of the equipment in the subway PSCADA system, defining the name of the measuring end of the equipment in the system, and taking the name of the measuring end of the equipment in the system as a preset field of the equipment.

The second information processing unit 65 is further configured to, when matching between the device information of the target device and the device information in the device information database fails, obtain a preset field corresponding to the device information of the target device in the second preset field table according to the device information of the target device, and determine the preset field as a type of a measurement end of the target device. By determining the preset field as the type of the target equipment measuring end, the type of the target equipment measuring end which fails to be matched in the equipment information database and cannot be determined is determined, the storage area is conveniently determined according to the type when the measuring data of the target equipment measuring end is stored, the retrieval of the measuring data is further facilitated, and the data interaction efficiency is improved.

In some embodiments, the above apparatus further comprises: a second reading unit 67 and a second packaging unit 68. Wherein:

the second reading unit 67 is configured to obtain corresponding measured data in the storage area according to the type of the measurement end of the target device and the attribute of preset measured data.

The second encapsulating unit 68 is configured to determine the type of the measurement end of the target device as a type field, determine the attribute of the preset measurement data as an attribute field, determine the corresponding measurement data as a data field, and encapsulate the measurement data as a measurement data file. Further, the method is specifically configured to determine the type of the target device measurement end as a type field, determine the attribute of the preset measurement data as an attribute field, determine the corresponding measurement data as a data field, and package the data field according to the E language rule to obtain a measurement data file described in the E language. The application of the E language in the power system is wide, and the method is a simple and efficient method for other systems related to the power system to use through the measurement data file described by the E language.

The embodiment of the invention provides a direct-current traction power supply system for a subway, which has a structure shown in fig. 7, and comprises two traction substations, namely a traction substation 70A and a traction substation 70B. Wherein 70A comprises: the system comprises an alternating current bus 7001A, an alternating current switch 7002, an alternating current switch 7003, a rectifier unit 7004A, an inverter feedback unit 7005A and four direct current switches 7007A1, 7007A2, 7007A3 and 7007A4, wherein the two direct current buses are respectively an anode bus 7006A + and a cathode bus 7006A-. 70B comprises: the system comprises an alternating current bus 7001B, an alternating current switch 7002, an alternating current switch 7003, a rectifier unit 7004B, an inverter feedback unit 7005B and four direct current switches 7007B1, 7007B2, 7007B3 and 7007B4, wherein the two direct current buses are respectively an anode bus 7006B + and a cathode bus 7006B-.

70A and 70B are connected with two steel rails through two contact networks, namely an upstream contact network 7008AB, a downstream contact network 7009AB, an upstream steel rail 7010AB and a downstream steel rail 7011 AB; in addition, the traction substation a also includes two contact networks and two rails connected to the left traction substation (not shown), namely an upstream contact network 7008L, a downstream contact network 7009L, an upstream rail 7010L and a downstream rail 7011L, and the traction substation B also includes two contact networks and two rails connected to the right traction substation (not shown), namely an upstream contact network 7008R, a downstream contact network 7009R, an upstream rail 7010R and a downstream rail 7011R. 70121-70124 are train numbers running between 70A and 70B.

Based on the above method for measuring device data in a subway PSCADA system, an embodiment of the present invention provides a method for describing E language of measured data of a subway PSCADA system, where a flow of the method for describing E language of measured data of a subway PSCADA system according to the embodiment of the present invention is shown in fig. 8, and includes the following steps:

step 801, describing measurement data of the same elements in the subway PSCADA system as the power system. Specifically, matching the device information of the element in the subway PSCADA system with the device information of the element in the power system, and determining the element in the subway PSCADA system, which is the same as the power system, according to the matching result includes: the system comprises an alternating current circuit, an alternating current bus, an alternating current switch knife switch, a transformer, a generator, an alternating current load, a reactive compensator, a direct current bus and a direct current switch knife switch; the type of the corresponding element in the delay power system is used as the type of the corresponding element in the subway PSCADA system, the measured data of the corresponding element is stored according to the attribute corresponding to the measured data, and the measured data is described in an E language form.

The E language is a markup language, has the basic features and advantages of the markup language, and the formed example data is a kind of marked plain text data. The method combines the traditional relational data description mode of the power system with a Common Information Model (CIM) facing to an object, not only retains the high efficiency of the relational method and inherits the long-term research results, but also absorbs the advantages (such as class inheritance and the like) of the relational method, and has the characteristics of simplicity, high efficiency and suitability for the power system. The electric power system is usually provided with E language to describe the power grid measurement data, and the interaction of the measurement data among different applications of different systems is realized through the measurement data file described by the E language.

Further, the E language data file includes comments (optional), system declarations, data block start tags, data block header definitions, data blocks, data block end tags, and the like. In some embodiments of the present invention, the description of the measurement data in the form of E language specifically includes: and taking the category of the target equipment as the category name of a database start mark and a data block end mark in the E language data, taking the attribute corresponding to the measured data of the target equipment as the attribute name defined by the data block head, and storing the measured data into the data block according to the corresponding attribute.

Step 802, describing measurement data of the rectifier unit. For a special rectifier unit element of a subway PSCADA system, a measuring end of a finishing unit is a rectifier unit end, measuring data of the finishing unit is described according to the rectifier unit end, the rectifier unit end refers to an alternating current side, a direct current positive electrode side and a direct current negative electrode side which are connected with the rectifier unit, and the type of the rectifier unit end is represented by Rectiferend; describing each object of the RectisierEnd in E language, wherein the type corresponding to the RectisierEnd comprises: the system comprises a station name, a rectifier unit end name, active power, an active power measurement state, reactive power, a reactive power measurement state, current and current measurement state attributes; other attributes may be extended as desired.

In some embodiments, the plant site name, the fairing group name, and the fairing group end name are joint primary keys, uniquely identifying each fairing group end in all Rectiferenced objects.

The primary key, i.e., primary key, is one or more fields in the table, and the value of the primary key is used to uniquely identify a record in the table. In a two table relationship, the primary key is used to reference a particular record in one table from the other table. The primary key is a unique key that is part of the table definition. The primary key of a table may be composed of multiple keys in common, and the columns of the primary keys do not contain a null value. The joint primary key is formed by using 2 or more than 2 fields to form a primary key, using the field contained in the primary key as the primary key, and the combination is unique in a data table and is added with a primary key index. In the embodiment of the invention, the index of the corresponding measurement data of the target equipment measurement end can be realized by adopting the joint main key, so that the measurement data of the target equipment measurement end can be conveniently obtained.

In some embodiments, as shown in fig. 7, 7004A is taken as an example, and the ac side, the dc positive side and the dc negative side thereof are taken as the names of the rectifier unit terminals to describe the measured data of the three rectifier unit terminals, 70A is the name of the plant station, and 7004A is the name of the rectifier unit; 7004B the measured data is described in the same manner as 7004A.

In step 803, the measurement data of the inverter feedback device is described. For the specific inversion feedback device element of the subway PSCADA system, a measuring end of the inversion feedback device is an inversion feedback end, and the measured data is described according to the inversion feedback end, wherein the inversion feedback end refers to an alternating current side, a direct current positive electrode side and a direct current negative electrode side which are connected with inversion feedback, and the type of the inversion feedback end is represented by feedback inverse energy; describing each object of the feedbackinvertered in an E language, wherein the corresponding type of the feedbackinvertered comprises the following components: the station name, the inversion feedback end name, the active power measurement state, the reactive power measurement state, the current and current measurement state attributes; other attributes may be extended as desired.

In some embodiments, the plant site name, the inversion feedback name, and the inversion feedback end name are associated primary keys, and each inversion feedback end is uniquely identified in all feedbackinverteend objects.

In some embodiments, as shown in fig. 7, 7005A is taken as an example, and the ac side, the dc positive side, and the dc negative side are taken as the names of the inversion feedback terminals to describe the measurement data of the three inversion feedback terminals; 70A is the name of the plant and the 7005A is the name of the inversion feedback; 7005B the measured data are described in the same manner as 7005A.

Step 804, the measured data of the contact network is described. For a contact network element special for a subway PSCADA system, a measuring end of a contact network is a contact network segment, measuring data of the contact network segment is described according to a contact network end, the contact network end refers to two adjacent traction substation outlets connected with the contact network, and the type of the contact network end is represented by CaterySegmentDot; describing each object of the CateranySegmentDot in E language, wherein the type corresponding to the CateranySegmentDot comprises the following steps: station name, contact network name, voltage measurement state, current and current measurement state attribute; other attributes may be extended as desired.

In some embodiments, the factory site name and the contact net name are joint primary keys, and each contact net end is uniquely identified in all the catenariesegmentdot objects.

In some embodiments, as shown in fig. 7, taking a contact network 7008AB as an example, the contact network name is 7008AB, and the measurement data at two ends of the contact network is described by taking 70A and 70B thereof as station names; the description method of the measurement data of the rest contact networks is the same as 7008 AB.

Step 805, the measured data of the steel rail is described. Describing the measured data of a special steel rail element of a subway PSCADA system according to a steel rail end, wherein the steel rail end refers to two adjacent traction substation outlets connected with a steel rail, and the type of the steel rail element is represented by RailSegmentDot; describing each object of the RailSegmentDot in the E language, wherein the RailSegmentDot comprises the following components: the station name, the rail name, the voltage measuring state, the current and the current measuring state attribute; other attributes may be extended as desired.

In some embodiments, the plant site name and the rail name are joint primary keys, and each rail end is uniquely identified in all the RailSegmentDot objects.

In some embodiments, as shown in fig. 7, taking rail 7010AB as an example, the name of rail 7010AB, and 70A and 70B as the names of the plant stations, describes the measurement data at both ends; the measurement data of the rest of the rails are described in the same way as 7010 AB.

Step 806, describing measurement data of the train connected to the overhead line system. Describing measured data of a train with a subway PSCADA system connected to a contact network according to train load, wherein the train load refers to a subway electric locomotive which takes current from the contact network of a traction power supply system, the current taking is represented in the subway PSCADA system to obtain current, and the type of the train load is represented by Trainload; describing each object of the TrainLoad by using E language, wherein the type corresponding to the TrainLoad comprises the following steps: train number, kilometer post, and train pickup attributes; other attributes may be extended as desired; the train number is a train number which is arranged to run according to the train dispatching and is a unique identifier of each object of the TrainLoad; the kilometer scale is the distance between the train and the starting point of the subway line and is used for describing the spatial distribution of the train in the traction power supply system; the train current draw is the current flowing through the electric locomotive, and if the energy is absorbed from the traction network, the current is positive; if energy is fed back to the traction network, the current is negative.

In some embodiments, as shown in fig. 7, taking a locomotive load 70123 as an example, if 70123 is 10km away from the starting point of the uplink, energy is absorbed from a catenary 7008AB, and when the current flowing through the locomotive is 1000A, the three attributes of the train load 70123 are 70123,10,1000 in sequence; the measured data of the rest of the train load is described in the same way as 70123.

In step 807, the metrology data file is output. The measurement data of the subway PSCADA system based on the E language description in the steps 801-807 are output in a file form, the file can comprehensively describe measurement information of all equipment of the subway PSCADA system, and the measurement data of the subway PSCADA system can be shared by interacting with other systems or applications through the data file.

According to the E language description method for the measurement data of the subway PSCADA system, the measurement data description of the subway PSCADA system is expanded through the E language description method, the file description form of the subway PSCADA measurement data is standardized, interaction is carried out between the subway PSCADA system and other systems or applications through the measurement data file described by the E language, the interaction flow of the measurement data of the subway PSCADA system and the other systems or applications can be simplified, the interaction efficiency of the measurement data of the subway PSCADA system and the other systems or applications is improved, and the E language description method has a good application prospect.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, all the functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit. Those of ordinary skill in the art will understand that: all or part of the steps for implementing the embodiments of the method may be implemented by hardware related to program instructions, where the program may be stored in a computer-readable storage medium, and when executed, the program performs the steps including the embodiments of the method for measuring device data in the PSCADA system of the subway; and the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The methods disclosed in the several method embodiments provided in the present application may be combined arbitrarily without conflict to obtain new method embodiments.

Features disclosed in several of the product embodiments provided in the present application may be combined in any combination to yield new product embodiments without conflict.

The features disclosed in the several method or apparatus embodiments provided in the present application may be combined arbitrarily, without conflict, to arrive at new method embodiments or apparatus embodiments.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A method for measuring equipment data in a subway power acquisition and monitoring PSCADA system is characterized by comprising the following steps:

sending a measurement instruction to measurement equipment of target equipment, and acquiring equipment information of the target equipment based on measurement information when receiving the measurement information sent by the measurement equipment and used for measuring the target equipment; the measuring equipment is connected with the appointed target equipment and is used for measuring the electrical parameters of the appointed target equipment;

determining a storage area according to the type of the target equipment, and storing the measurement data of the target equipment in the storage area according to the corresponding attribute of the measurement data;

wherein the obtaining of the device information of the target device based on the measurement information includes:

according to the corresponding relation between the transmission end and the measuring equipment stored in the subway PSCADA system, the measuring equipment corresponding to the received measuring information is determined, and the equipment information of the corresponding target equipment is determined according to the measuring equipment.

2. The method of claim 1, further comprising:

3. The method according to claim 1 or 2, characterized in that the method further comprises:

4. The method of claim 1, further comprising:

5. The method of claim 4, further comprising:

6. The method according to claim 4 or 5, characterized in that the method further comprises:

7. The utility model provides an equipment data measuring equipment in subway electric power collection and control PSCADA system which characterized in that, equipment includes:

the control unit is used for sending a measurement instruction to measurement equipment of target equipment, and acquiring equipment information of the target equipment based on measurement information when receiving the measurement information sent by the measurement equipment and used for measuring the target equipment; the measuring equipment is connected with the appointed target equipment and is used for measuring the electrical parameters of the appointed target equipment;

the storage unit is used for determining a storage area according to the type of the target equipment and storing the measured data of the target equipment in the storage area according to the corresponding attribute of the measured data;

8. The apparatus of claim 7, further comprising:

9. The apparatus according to claim 7 or 8, characterized in that it further comprises:

10. The apparatus of claim 7, further comprising:

the data processing unit is used for acquiring the measurement data of the measurement end of the target equipment based on the measurement information;

11. The apparatus of claim 10, further comprising:

12. The apparatus according to claim 10 or 11, characterized in that it further comprises:

13. A computer storage medium on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 6.