CN114501184A - Charging system internal state monitoring system, method and equipment - Google Patents
Charging system internal state monitoring system, method and equipment Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000012544 monitoring process Methods 0.000 title claims abstract description 16
- 238000004891 communication Methods 0.000 claims abstract description 25
- 238000013500 data storage Methods 0.000 claims abstract description 23
- 238000007405 data analysis Methods 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000004590 computer program Methods 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 6
- 206010048669 Terminal state Diseases 0.000 abstract description 3
- 230000003993 interaction Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 9
- 238000012216 screening Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/451—Execution arrangements for user interfaces
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45504—Abstract machines for programme code execution, e.g. Java virtual machine [JVM], interpreters, emulators
- G06F9/45529—Embedded in an application, e.g. JavaScript in a Web browser
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/22—Parsing or analysis of headers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/30—Arrangements in telecontrol or telemetry systems using a wired architecture
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- Engineering & Computer Science (AREA)
- Software Systems (AREA)
- Theoretical Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Security & Cryptography (AREA)
- Human Computer Interaction (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Secondary Cells (AREA)
Abstract
A charging system internal state monitoring system, method and device comprises a data acquisition module, a data analysis module, a data storage module and a display module; one end of the data acquisition module is connected to the charging system, the other end of the data acquisition module is connected to the data analysis module, the data analysis module is connected to the data storage module, and the data storage module is connected to the display module; according to the invention, the real-time internal communication message of the charging system is acquired, analyzed and displayed in real time through the topological interface, and the related state change curve graph is synchronously drawn, so that the internal running state of the charging system is displayed in real time, and the human-computer interaction in the testing process is more friendly; and the terminal state, the module distribution state, the module output voltage and the parallel contactor drive feedback state communication message information are recorded and plotted, so that the initial positioning of the problem reasons is facilitated.
Description
Technical Field
The invention belongs to the technical field of charging system testing, and particularly relates to a system, a method and equipment for monitoring an internal state of a charging system.
Background
At present, an oscilloscope is adopted to test control logic, so that the change processes of each terminal, each module and each parallel contactor cannot be visually displayed, for example, the number of channels of the oscilloscope (generally 4 channels) is limited, the control time sequences of each module and each parallel contactor charged by multiple guns cannot be simultaneously tested (the number of the modules and the parallel contactors needs dozens of channels to be simultaneously tested), and high requirements are put on the test.
Disclosure of Invention
The present invention is directed to a system, a method and a device for monitoring an internal state of a charging system, so as to solve the above-mentioned problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
a charging system internal state monitoring system comprises a data acquisition module, a data analysis module, a data storage module and a display module; one end of the data acquisition module is connected to the charging system, the other end of the data acquisition module is connected to the data analysis module, the data analysis module is connected to the data storage module, and the data storage module is connected to the display module;
the data acquisition module is used for acquiring communication messages in the charging system;
the data analysis module is used for analyzing the acquired communication message to acquire state data of each terminal in the charging system;
the data storage module stores the analyzed state data in real time;
the display module is used for displaying the real-time data in the storage module.
Furthermore, the data acquisition module is a CAN communication box, and the CAN communication box is connected to an internal CAN communication bus of the charging system.
Further, the CAN communication box acquires binary message data.
Further, the data analysis module analyzes the data into the output voltage of the alternating current-direct current conversion module of the charging system, the terminal distributed by the module, the state of the charging terminal and the driving feedback state of the parallel contact according to the agreed message protocol.
Further, the data storage module stores the data in a thread safety dictionary mode.
Furthermore, the display module is refreshed in a timer mode, all data are acquired from the data storage module in real time, and the data are displayed in a configuration mode.
Furthermore, the display module adopts a self-host form to externally disclose webapi, provides a plurality of api interfaces, opens a web browser when viewing a state curve, adopts JavaScript and HTML5 languages, adopts canvas to draw a graphical interface, and performs real-time refreshing.
Further, a method for monitoring the internal state of a charging system comprises the following steps:
acquiring a binary communication message in a charging system;
analyzing the acquired communication message, acquiring the output voltage of an alternating current-direct current conversion module of the charging system in the charging system, the state of a charging terminal and the state data of the parallel contactor driving feedback state, and storing the state data into a data storage module;
and refreshing the data in a timer mode, acquiring all data from the data storage module in real time, and displaying the data in a configuration mode.
Further, a computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the method for monitoring the internal state of a charging system according to claim 8 when executing the computer program.
Compared with the prior art, the invention has the following technical effects:
according to the invention, the real-time internal communication message of the charging system is acquired, analyzed and displayed in real time through the topological interface, and the related state change curve graph is synchronously drawn, so that the internal running state of the charging system is displayed in real time, and the human-computer interaction in the testing process is more friendly;
and the terminal state, the module distribution state, the module output voltage and the parallel contactor drive feedback state communication message information are recorded and plotted, so that the initial positioning of the problem reasons is facilitated.
Drawings
FIG. 1 is a block diagram of the system of the present invention;
FIG. 2 is a block diagram of the charging system of the present invention;
FIG. 3 is a star ring diagram of the module + PCU + charging gun DC contactor in the system architecture of the present invention;
FIG. 4 is a schematic diagram illustrating automatic screening and parsing of internal messages according to the present invention;
FIG. 5 is a graph of the change in the drive feedback state of a parallel contactor;
FIG. 6 is a schematic diagram of the automatic screening of internal messages and module output voltage analysis according to the present invention;
fig. 7 shows a charging real-time status display diagram.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
referring to fig. 1 to 7, the core technical point of the present invention is to protect a charging system testing background software, which obtains a charging system real-time internal communication message, analyzes and displays the message in real time through a topology interface, and synchronously draws a related state change curve.
Specifically, the method comprises the following steps:
a charging system internal state monitoring system comprises a data acquisition module, a data analysis module, a data storage module and a display module; one end of the data acquisition module is connected to the charging system, the other end of the data acquisition module is connected to the data analysis module, the data analysis module is connected to the data storage module, and the data storage module is connected to the display module;
the data acquisition module is used for acquiring communication messages in the charging system;
the data analysis module is used for analyzing the acquired communication message to acquire state data of each terminal in the charging system;
the data storage module stores the analyzed state data in real time;
the display module is used for displaying the real-time data in the storage module.
Example (b):
fig. 3 is a star ring topology diagram, which only shows the states of the modules + PCU + charging gun dc contactor in the system topology of fig. 2, where 1 to 12 are modules, K1 to K15 are PCU internal parallel contactors, 1# gun to 6# gun are charging terminals, and Kz1 to Kz6 are terminals corresponding to the dc contactor.
Remarking:
1. the PCU in the system topology is a power distribution unit, and a module distribution access is controlled by closing or opening a parallel contactor;
2. the IO board in the system topology receives the command of the monitoring board, controls the closing and opening of K1-K15 parallel contactors in the PCU, and receives the feedback state of the contactors.
When the charging terminal starts charging, the main output contactor is closed, the control module is started and outputs voltage and current, when one module does not meet the requirement of a vehicle, other modules are distributed to be charged, and at the moment, the distributed modules need to be opened and the corresponding parallel contactors need to be closed; when the charging is finished, the module is required to be closed, the parallel contactor and the main output contactor are disconnected, the series of processes are controlled and realized through internal communication messages, and the internal messages are required to be analyzed and the whole process is required to be displayed through an interface.
As shown in fig. 2, the PC is connected to the CAN communication bus inside the system through the CAN box to obtain the internal real-time message data, and the format of the internal message is shown in fig. 4.
The internal message data of the charging equipment in operation is transmitted to a computer through a CAN bus, and the software acquires the binary message data from the CAN bus and analyzes the data according to an agreed message protocol. The analyzed data comprises module output voltage, terminal state, terminal distributed by the module, parallel contact driving and feedback state. These data are stored in memory in the form of a thread safety dictionary. (terminal module assignment refers to which gun, terminal, module in the system is specifically assigned)
The configuration interface of the software is refreshed in a timer mode, all data are obtained from the memory in real time, and the data are displayed on the software interface in a group configuration mode. The state curve of the software adopts a self-host form to externally disclose a webapi and provides a plurality of api interface methods. When the software user needs to check the state curve, only one web browser needs to be opened to access the website provided on the software interface. In a web browser, JavaScript and HTML5 languages are adopted, canvas is adopted to draw a graphical interface, and real-time refreshing is carried out, such as:
parallel contactor drive feedback state 0000 for state 0, resolved as binary: 0000000000000000, which respectively represents the states of the K0-K15 contactors, wherein the state of K0 is invalid, and the driving feedback states of the K1-K15 parallel contactors are all 0, namely the disconnection state;
parallel contactor drive feedback state 0002 for state 1, resolves to binary: 0000000000000010, the driving and feedback states of the K1 parallel contactor are 1, namely the closing state, and the driving and feedback states of other parallel contactors are 0, namely the opening state;
the parallel contact drive feedback state 1002 of state 2 resolves to binary: 0001000000000010, the driving and feedback states of the K1 and K12 parallel contactors are 1, namely, the state is a closed state, and the driving feedback states of other parallel contactors are 0, namely, an open state;
the parallel contactor drive feedback state 3002 of state 3, resolves to binary: 0011000000000010, the driving and feedback states of the K1, K12 and K13 parallel contactors are 1, namely, the state is a closed state, and the driving feedback states of other parallel contactors are 0, namely, the state is an open state;
the parallel contact drive feedback state 3082 of state 4, resolved as binary: 0011000010000010, the driving and feedback states of the K1, K12, K13 and K7 parallel contactors are 1, namely, the driving and feedback states are closed states, and the driving and feedback states of other parallel contactors are 0, namely, the driving and feedback states are open states.
The above are different time points to output the contactor driving and feedback state changes.
Fig. 5 is a change curve of the driving feedback states of the parallel contactors, and the change curve is analyzed and drawn according to the time axis in fig. 5 and the driving feedback states of the parallel contactors, so that the driving and feedback change processes and change time points of the parallel contactors K1-K15 from the start of charging to the charging stabilization process of the charger can be visually observed (similarly, the states of the contactors output at the terminal and the output voltage of the module can also be drawn into a similar curve).
Fig. 6 is a schematic diagram illustrating automatic internal message screening and module output voltage analysis, and the real-time output voltage values of the modules in the charger (see details displayed in a "module real-time voltage" frame in table 7) can be visually observed by analyzing and drawing according to the time axis and the module output voltages in fig. 6, wherein the decimal output voltage values are obtained by converting two-bit hexadecimal original data.
Remarking: a binary conversion formula: (HEX2DEC (J32445) +256 HEX2DEC (K32445))/10, wherein J32445 and K32445 correspond to two-bit hexadecimal high and low bytes, respectively.
Fig. 7 is a diagram showing a charging real-time state of a gun # 1, from which it can be seen visually that a main output contactor of the gun # 1 is in a closed state (other guns are not charged, and the main output contactor states are all open), modules No. 1,2,7,8, and 12 are allocated to the gun # 1, real-time output voltages of the modules are all about 750V, and contacts K1, K7, K12, and K13 are correspondingly connected in parallel to be in a closed state.
Claims (9)
1. A charging system internal state monitoring system is characterized by comprising a data acquisition module, a data analysis module, a data storage module and a display module; one end of the data acquisition module is connected to the charging system, the other end of the data acquisition module is connected to the data analysis module, the data analysis module is connected to the data storage module, and the data storage module is connected to the display module;
the data acquisition module is used for acquiring communication messages in the charging system;
the data analysis module is used for analyzing the acquired communication message to acquire state data of each terminal in the charging system;
the data storage module stores the analyzed state data in real time;
the display module is used for displaying the real-time data in the storage module.
2. The system according to claim 1, wherein the data acquisition module is a CAN communication box, and the CAN communication box is connected to an internal CAN communication bus of the charging system.
3. The system according to claim 2, wherein the CAN communication box obtains binary message data.
4. The system for monitoring the internal state of the charging system according to claim 1, wherein the data analysis module analyzes data into the output voltage of the alternating current/direct current conversion module of the charging system, the terminal distributed by the module, the state of the charging terminal and the driving feedback state of the parallel contact according to an agreed message protocol.
5. The system for monitoring the internal state of the charging system according to claim 1, wherein the data storage module stores data in a thread safety dictionary manner.
6. The system according to claim 1, wherein the display module is refreshed by a timer, and all data is obtained from the data storage module in real time and displayed in a configuration form.
7. The system for monitoring the internal state of the charging system according to claim 6, wherein the display module is used for externally disclosing webapi in a self-hosting form and providing a plurality of api interfaces, and when a state curve is checked, a web browser is opened, JavaScript and HTML5 languages are adopted, a graphical interface is drawn by canvas, and real-time refreshing is performed.
8. A method for monitoring an internal state of a charging system, based on any one of claims 1 to 7, comprising the steps of:
acquiring a binary communication message in a charging system;
analyzing the acquired communication message, acquiring the output voltage of an alternating current-direct current conversion module of the charging system in the charging system, the state of a charging terminal and the state data of the parallel contactor driving feedback state, and storing the state data into a data storage module;
and refreshing the data in a timer mode, acquiring all data from the data storage module in real time, and displaying the data in a configuration mode.
9. A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of a method of monitoring the internal state of a charging system according to claim 8 when executing the computer program.
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