A charging and discharging data acquisition device

Abstract

The present application discloses a charging and discharging data acquisition device, including: a power supply module and a data acquisition module. The power supply module is connected to the data acquisition module. The power supply module is used to supply power to the data acquisition module. The data acquisition module is used to collect charging and discharging data, wherein the charging and discharging data is the data of charging and discharging between an electric vehicle and a charging pile that complies with the European standard charging protocol. The data acquisition module of the present application can accurately collect charging and discharging data, and record these data, providing an important basis for subsequent analysis and research. At the same time, the power supply module provides a stable power supply to the data acquisition module, ensuring that the data acquisition module can operate normally and collect charging and discharging data, and avoiding the occurrence of failures due to power supply problems that cause charging failures.

Description

Technical Field

[0001] The present application relates to the field of data acquisition, and in particular to a charging and discharging data acquisition device. Background Art

[0002] Electric vehicles exported from China to Europe need to comply with relevant European market agreement requirements: The European market has a series of regulations and standards for imported electric vehicles, including ISO 15118 series and ISO 61815 series. These protocols are designed to ensure that the charging system and communication protocol of electric vehicles meet international standards to improve charging efficiency, safety and interoperability.

[0003] Since the European market has strict requirements on electric vehicle charging systems and communication protocols, if electric vehicles fail to meet relevant standards, abnormal charging may occur, such as failure to establish charging connection, slow charging speed, charging interruption, etc., which will bring inconvenience to users and affect the normal use of electric vehicles. Since we cannot know the charging and discharging data between electric vehicles and charging piles, we cannot effectively deal with abnormal charging situations, such as data analysis and improvement.

[0004] Therefore, providing a device to record and collect key data between electric vehicles and charging piles is a technical problem that technicians in this field urgently need to solve. Utility Model Content

[0005] In view of this, an embodiment of the present application provides a charging and discharging data acquisition device to provide a device for recording and collecting key data between an electric vehicle and a charging pile.

[0006] To solve the above problems, the technical solutions provided in the embodiments of the present application are as follows:

[0007] A charging and discharging data acquisition device, the device comprising:

[0008] Power supply module and data acquisition module;

[0009] The power supply module is connected to the data acquisition module;

[0010] The power supply module is used to supply power to the data acquisition module;

[0011] The data acquisition module is used to collect charging and discharging data, wherein the charging and discharging data is data when charging and discharging between an electric vehicle and a charging pile in accordance with the European standard charging protocol.

[0012] In a possible implementation, the data acquisition module includes an input / output I / O acquisition module;

[0013] The I / O acquisition module is respectively connected to the current sensor, the voltage acquisition line and the proximity-guided PP acquisition line;

[0014] The I / O acquisition module is used to collect loop current signals and voltage signals of the three-phase line, the neutral line, the ground line, the positive electrode of the DC power supply, and the negative electrode of the DC power supply through the current sensor and the voltage acquisition line;

[0015] The I / O acquisition module is also used to collect the voltage signal between the charging plug and the charging gun through the PP acquisition line.

[0016] In a possible implementation, the data acquisition module further includes: a power line communication PLC data acquisition decoupling module;

[0017] The PLC data acquisition decoupling module is connected to the control pilot loop CP acquisition line;

[0018] The PLC data acquisition decoupling module is used to collect high level values, low voltage values, frequencies, duty cycles and PLC interface data on the CP loop through the CP acquisition line.

[0019] In a possible implementation, the charge and discharge data acquisition device further includes: a control storage module;

[0020] The control storage module is connected to the power supply module and the data acquisition module respectively;

[0021] The control storage module is used to control the operation of the power supply module and the data acquisition module, and store the charge and discharge data collected by the data acquisition module.

[0022] In a possible implementation, the charge and discharge data acquisition device further includes: a state indication module;

[0023] The status indication module is connected to the power supply module and the data acquisition module respectively;

[0024] The power supply module is used to supply power to the status indication module;

[0025] When the power supply module starts to supply power to the data acquisition module, the state indication module is used to indicate that the current working state of the charge and discharge data acquisition device is recording;

[0026] When the power supply module continues to supply power to the data acquisition module but a fault occurs in the data acquisition module, the status indication module is used to indicate that the current working status of the charge and discharge data acquisition device is a fault.

[0027] In a possible implementation, the status indication module includes a red light and a green light;

[0028] When the power supply module starts to supply power to the data acquisition module, the green light turns on to indicate that the current working state of the charge and discharge data acquisition device is recording;

[0029] When the power supply module continues to supply power to the data acquisition module but the data acquisition module fails, the red light turns on to indicate that the current working state of the charge and discharge data acquisition device is a failure.

[0030] In a possible implementation, the charge and discharge data acquisition device further includes: a buzzer;

[0031] The buzzer is connected to the power supply module and the status indication module respectively;

[0032] The power supply module is used to supply power to the buzzer;

[0033] When the status indication module indicates that the current working status of the charge and discharge data acquisition device is a fault, the buzzer is used to emit a prompt sound.

[0034] In a possible implementation, the charging and discharging data acquisition device further includes: a display screen;

[0035] The display screen is connected to the power supply module and the data acquisition module respectively;

[0036] The power supply module is used to supply power to the display screen;

[0037] The display screen is used to display the charging and discharging data.

[0038] In a possible implementation, when the data acquisition module fails, the display screen is also used to display fault data.

[0039] It can be seen that the embodiments of the present application have the following beneficial effects:

[0040] The charging and discharging data acquisition device of the embodiment of the present application includes a power supply module and a data acquisition module. The power supply module is connected to the data acquisition module. The power supply module is used to power the data acquisition module connected thereto. The data acquisition module is used to collect data during charging and discharging between an electric vehicle that complies with the European standard charging protocol and a charging pile. Through this charging and discharging data acquisition device, the present application allows research and development engineers to easily obtain detailed data during the charging and discharging process, thereby analyzing and improving the electric vehicle charging system. By analyzing this data, engineers can discover potential problems, optimize charging strategies, improve charging efficiency and safety, and thus continuously improve products and technologies. At the same time, the power supply module provides a stable power supply for the data acquisition module to ensure that the data acquisition module can operate normally and collect charging and discharging data, thereby avoiding the occurrence of failures that cannot be charged due to power supply problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in this embodiment or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1 A schematic diagram of the structure of a charge and discharge data acquisition device provided in an embodiment of the present application;

[0043] Figure 2 A schematic diagram of the structure of a charge and discharge data acquisition device provided in an embodiment of the present application;

[0044] Figure 3 A schematic diagram of the structure of another charging and discharging data acquisition device provided in an embodiment of the present application;

[0045] Figure 4 A schematic diagram of the structure of another charging and discharging data acquisition device provided in an embodiment of the present application;

[0046] Figure 5 A schematic diagram of the structure of another charging and discharging data acquisition device provided in an embodiment of the present application;

[0047] Figure 6 A schematic diagram of the structure of another charging and discharging data acquisition device provided in an embodiment of the present application;

[0048] Figure 7 A schematic diagram of the structure of another charging and discharging data acquisition device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0049] To facilitate understanding of the technical solutions provided by the embodiments of the present application, the background technology involved in the embodiments of the present application will be described below.

[0050] Electric vehicles exported from China to Europe need to comply with relevant standards, such as the ISO 15118 series and ISO 61815 series. The purpose of these protocols is to ensure that the charging system and communication protocol of electric vehicles meet international standards to improve charging efficiency, safety and interoperability. If electric vehicles fail to meet these standards, abnormal charging may occur, such as failure to establish a charging connection, slow charging speed, and charging interruption. These problems will affect the user experience and the normal use of electric vehicles. Since technicians cannot know the charging and discharging data between electric vehicles and charging piles, they cannot effectively deal with abnormal charging situations, such as data analysis and improvement.

[0051] In order to solve this problem, a charging and discharging data acquisition device is provided in an embodiment of the present application, including: a power supply module and a data acquisition module. The power supply module is connected to the data acquisition module. The power supply module is used to power the data acquisition module. The data acquisition module is used to collect charging and discharging data, wherein the charging and discharging data is the data when an electric vehicle that complies with the European standard charging protocol is charged and discharged with a charging pile. The data acquisition module of the present application can accurately collect charging and discharging data, and record these data, providing an important basis for subsequent analysis and research. At the same time, the power supply module provides a stable power supply to the data acquisition module, ensuring that the data acquisition module can operate normally and collect charging and discharging data, and avoiding the occurrence of failures due to power supply problems that cause charging failures.

[0052] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0053] See also Figure 1 , Figure 1 A schematic diagram of a charging and discharging data acquisition device structure provided in an embodiment of the present application is shown in FIG. Figure 1 As shown, the acquisition device includes: a power supply module 110 and a data acquisition module 120. The power supply module 110 is connected to the data acquisition module 120. The power supply module 110 is used to supply power to the data acquisition module 120. The data acquisition module 120 is used to collect charging and discharging data, wherein the charging and discharging data is the data when the electric vehicle that complies with the European standard charging protocol is charged and discharged with the charging pile.

[0054] In a possible implementation, the connection between the power supply module 110 and the data acquisition module 120 is usually made by wire connection or interface connection. The wire connection can be made through a connector and a wire. The interface connection can use a standard interface, such as a USB (Universal Serial Bus) interface, an RS-232 (Recommended Standard 232) interface, or a CAN (Controller Area Network) bus interface for connection. These connection methods can provide a stable power supply and ensure that the data acquisition module 120 can operate normally and collect charge and discharge data. The specific connection method selected depends on the requirements of the equipment design and the specific application scenario.

[0055] In a possible implementation, the data generated when an electric vehicle that complies with European standards is charged and discharged with a charging pile mainly includes but is not limited to the following:

[0056] (1) Battery status: voltage, temperature and other information.

[0057] (2) Charging process: charging power, charging time and other information.

[0058] (3) Discharge process: motor output power, drive motor speed, torque and other information.

[0059] (4) Communication protocol: Communication protocol information between electric vehicles and charging piles.

[0060] In addition, the "battery status" also includes the battery power data, but the battery power data is obtained from the "communication protocol information between the electric vehicle and the charging pile".

[0061] These data are of great significance to the charging performance and safety of electric vehicles. Through data analysis and improvement, the charging efficiency, safety and interoperability of electric vehicles can be improved. The ways to display these data may include charts, reports, data analysis software, etc.

[0062] Figure 2 A schematic diagram of a charging and discharging data acquisition device structure provided in an embodiment of the present application is shown in FIG. Figure 2 As shown, the data acquisition module 120 includes: an I / O (Input / Output) acquisition module 121 .

[0063] The I / O acquisition module 121 is connected to the current sensor 1211 , the voltage acquisition line 1212 , and the PP (Proximity Pilot) acquisition line 1213 , respectively.

[0064] Among them, the PP acquisition line refers to a wire used to transmit charging status and control signals in the electric vehicle charging system. The PP acquisition line is usually used to identify the connection status of the charging gun (i.e. whether it is correctly connected) and the rated current of the charging gun, so that the electric vehicle charging pile system can perform corresponding operations and controls based on the identified charging gun connection status and rated current.

[0065] In the European standard charging interface, there are 5 or 7 pins between the plug on the charging gun and the socket on the electric vehicle, one of which is PP (Proximity Pilot). This pin is connected to the controller of the electric vehicle through the PP acquisition line so that the controller can send control signals to the charging pile.

[0066] In short, the PP collection line is a very important part of the European standard electric vehicle charging system. It can ensure that the charging pile correctly identifies the electric vehicle and starts the charging process.

[0067] The I / O acquisition module 121 is used to collect loop current signals and voltage signals of the three-phase line, the neutral line, the ground line, the positive electrode of the DC power supply, and the negative electrode of the DC power supply through the current sensor 1211 and the voltage acquisition line 1212.

[0068] Optionally, the three-phase line may be in the form of L1, L2 and L3. L1, L2, L3: represent three phase lines in a three-phase power supply, and are usually used to supply power to a three-phase device or system.

[0069] Optionally, the neutral line may be in the form of N. N represents a neutral line, which is used to form a single-phase power supply loop or provide a single-phase power supply in a three-phase power supply system.

[0070] Optionally, the ground wire may be in the form of PE. PE stands for Protective Earth, also known as a ground wire, which is used to connect conductive parts such as a device housing and a metal frame to the earth to ensure safe operation of the device.

[0071] Optionally, the positive pole of the DC power supply may be expressed as DC+, and the negative pole of the DC power supply may be expressed as DC-. DC+ and DC- respectively represent the positive pole and negative pole in a DC power supply system, and are used to connect a DC power supply.

[0072] The I / O acquisition module 121 is also used to collect the voltage signal between the charging plug and the charging gun through the PP acquisition line 1213.

[0073] In one possible implementation, the voltage signal between the charging plug and the charging gun is usually used for communication and control between the charging pile and the electric vehicle. This communication protocol can ensure the safety and efficiency of the charging process. In the electric vehicle charging system, the voltage signal between the charging plug and the charging gun mainly includes but is not limited to the following:

[0074] (2) Data communication signal: used to transmit data information during the charging process, such as charging parameters, charging status, battery information, etc. Through the data communication signal, the charging pile can monitor the charging status of the electric vehicle in real time and make adjustments and controls as needed.

[0075] (3) Ground wire detection signal: used to detect whether the connection between the charging plug and the charging gun is good to ensure safe charging. If the ground wire detection signal is abnormal, the charging pile will stop supplying power to avoid safety accidents.

[0076] The accurate transmission and analysis of these voltage signals are crucial to the safe charging of electric vehicles, so relevant communication protocols and standards must be strictly followed when designing and manufacturing charging plugs and charging guns.

[0077] Figure 3 A schematic diagram of the structure of another charging and discharging data acquisition device provided in an embodiment of the present application is shown in FIG. Figure 3 As shown, the data acquisition module 120 further includes: a PLC (Power Line Communication) data acquisition decoupling module 122. The PLC data acquisition decoupling module 122 is connected to a CP (Control Pilot) acquisition line.

[0078] The PLC data acquisition decoupling module 122 is a device for data acquisition and decoupling in a power line communication system. In an electric vehicle charging system, the PLC data acquisition decoupling module 122 can be used for data communication and data acquisition between an electric vehicle and a charging pile, so as to monitor and record various parameters and status information during the charging process.

[0079] The CP acquisition line refers to the wire used to transmit control signals between the charging plug and the charging gun. The function of the CP line is to achieve different charging modes and communication protocols through different voltage and frequency combinations, such as starting charging, stopping charging, selecting charging power, etc.

[0080] The PLC data acquisition decoupling module 122 is used to acquire parameters such as high level value, low voltage value, frequency, duty cycle and PLC interface data on the CP loop through the CP acquisition line.

[0081] It should be noted that the high level value refers to the high level value on the CP loop, which refers to the high level amplitude in the carrier signal, usually expressed in volts (V). The larger the high level value, the larger the peak value of the carrier signal, which helps to improve the anti-interference and reliability of signal transmission.

[0082] The low level value refers to the low level value on the CP loop, which refers to the low level amplitude in the carrier signal, and is usually expressed in volts (V). The difference between the low level value and the high level value is called the peak-to-peak value, which represents the amplitude of the carrier signal.

[0083] Frequency refers to the oscillation period of the carrier signal on the CP loop, usually expressed in Hertz (Hz). The higher the frequency, the shorter the period of the carrier signal, which can improve the speed and response performance of signal transmission.

[0084] The duty cycle refers to the proportion of the high-level portion of the carrier signal on the CP loop, usually expressed as a percentage. The higher the duty cycle, the longer the high-level portion of the carrier signal lasts, which can increase the energy and transmission distance of the carrier signal.

[0085] In a possible implementation, the PLC interface data refers to a coupled high-frequency signal, which includes information on the negotiation of charging voltage, charging current, payment method, and charging time between the vehicle and the charging pile during the charging process. The content of the coupled high-frequency signal is specified in the ISO 15118 protocol.

[0086] ISO 15118 is an international standard that specifies the communication protocol and interaction between electric vehicles and charging piles. The ISO 15118 protocol specifies the communication standard between electric vehicles and charging piles, ensuring that they can safely and efficiently perform identity authentication, exchange charging parameters and interact with data, and promote the interoperability and intelligent development of electric vehicle charging systems.

[0087] In a possible implementation, the PLC data acquisition decoupling module 122 can acquire a power control signal through the PLC interface data, and the power control signal is used to control the start and end of the charging pile providing power to the electric vehicle. When the charging plug is inserted into the charging gun, the electric vehicle will send a power control signal to the charging pile to inform it to start charging; when charging is completed or charging needs to be stopped, a signal is sent to the charging pile again to end charging.

[0088] Figure 4 A schematic diagram of the structure of another charging and discharging data acquisition device provided in an embodiment of the present application is shown in FIG. Figure 4As shown, the charge and discharge data acquisition device further includes: a control storage module 130. The control storage module 130 is connected to the power supply module 110 and the data acquisition module 120 respectively.

[0089] The control storage module 130 is used to control the operation of the power supply module 110 and the data acquisition module 120 , and store the charge and discharge data collected by the data acquisition module 120 .

[0090] The control storage module 130 can control the power supply module 110 by connecting to it. It can send a signal or command to the power supply module 110 to control the start, stop or adjustment of power supply.

[0091] The control storage module 130 can also be connected to the data acquisition module 120 and control it. It can send instructions to the data acquisition module 120 to start, stop or adjust the data acquisition process.

[0092] The control storage module 130 has a data storage function and can store the charge and discharge data collected by the data acquisition module 120. These data can be stored in the internal memory as needed, or stored through an external storage medium (such as an SD (Secure Digital) card or flash memory).

[0093] Figure 5 A schematic diagram of the structure of another charging and discharging data acquisition device provided in an embodiment of the present application is shown in FIG. Figure 5 As shown, the charging and discharging data acquisition device further includes: a state indicating module 140. The state indicating module 140 is connected to the power supply module 110 and the data acquisition module 120 respectively.

[0094] The power supply module 110 is used to supply power to the status indication module 140 .

[0095] When the power supply module 110 starts to supply power 120 to the data acquisition module, the state indication module 140 is used to indicate that the current working state of the charge and discharge data acquisition device is recording;

[0096] When the power supply module 110 continues to supply power to the data acquisition module 120 but a fault occurs in the data acquisition module 110 , the state indication module 140 is used to indicate that the current working state of the charge-discharge data acquisition device is a fault.

[0097] This design can help operators to timely understand the working status of the charge and discharge data acquisition equipment, ensuring the accuracy and reliability of data acquisition. The status indication module 140 plays an important role in the operation of the equipment, providing timely feedback information, helping to quickly discover and solve problems and ensure the normal operation of the equipment.

[0098] In a possible implementation, the status indication module 140 includes a red light and a green light.

[0099] When the power supply module starts to supply power to the data acquisition module, the green light turns on to indicate that the current working state of the charge and discharge data acquisition device is recording;

[0100] When the power supply module continues to supply power to the data acquisition module but the data acquisition module fails, the red light turns on to indicate that the current working state of the charge and discharge data acquisition device is a failure.

[0101] Figure 6 A schematic diagram of the structure of another charging and discharging data acquisition device provided in an embodiment of the present application is shown in FIG. Figure 6 As shown, the charge and discharge data acquisition device further includes a buzzer 150. The buzzer 150 is connected to the power supply module 110 and the status indication module 140 respectively.

[0102] The power supply module 110 is used to supply power 150 to the buzzer;

[0103] When the state indicating module 140 indicates that the current working state of the charge-discharge data acquisition device is a fault, the buzzer 150 is used to emit a prompt sound.

[0104] Through this design, when the charge and discharge data acquisition device fails, the buzzer can make a sound to remind the operator to pay attention to the abnormal situation of the device. This helps to find the equipment failure in time and take corresponding measures to repair or deal with it. As an alarm device, the buzzer 150 can effectively enhance the perceptibility of the device and improve the efficiency and accuracy of fault handling.

[0105] Figure 7 A schematic diagram of the structure of another charging and discharging data acquisition device provided in an embodiment of the present application is shown in FIG. Figure 7 As shown, the charging and discharging data acquisition device further includes: a display screen 160. The display screen 160 is connected to the power supply module 110 and the data acquisition module 120 respectively;

[0106] The power supply module 110 is used to supply power to the display screen 160;

[0107] The display screen 160 is used to display the charging and discharging data.

[0108] In a possible implementation, when the data acquisition module fails, the display screen is also used to display fault data. Fault events such as internal overvoltage or internal damage can be analyzed based on the fault data.

[0109] The charge and discharge data acquisition device further includes a display screen 160, which is used to display the charge and discharge data and, when a fault occurs in the data acquisition module, is also used to display fault data.

[0110] This design allows operators to intuitively view charge and discharge data through the display screen, which is convenient for data analysis and monitoring. At the same time, when the data acquisition module fails, the display screen 160 can display the fault data and provide necessary information for quick location and resolution of the problem.

[0111] The presence of the display screen makes the charging and discharging data acquisition equipment more user-friendly. Operators can obtain relevant data and status information by directly observing the contents of the display screen, thereby improving the visualization and ease of use of the equipment.

[0112] The embodiment of the present application provides a charging and discharging data acquisition device, including a power supply module 110 and a data acquisition module 120, wherein the power supply module 110 is connected to the data acquisition module 120 via a wire or an interface. The power supply module 110 is used to supply power to the data acquisition module 120 connected thereto. The data acquisition module 120 is used to collect data during charging and discharging between an electric vehicle that complies with the European standard charging protocol and a charging pile. The data acquisition module of the present application can accurately collect charging and discharging data, and record these data, providing an important basis for subsequent analysis and research. At the same time, the power supply module provides a stable power supply to the data acquisition module, ensuring that the data acquisition module can operate normally and collect charging and discharging data, thereby avoiding the occurrence of failures due to power supply problems that cause charging failures.

[0113] The above is a detailed introduction to a charge and discharge data acquisition device provided by the present application. The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the embodiments can refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can refer to the method part description. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

[0114] It should be understood that in the present application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0115] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0116] The steps of the method or algorithm described in conjunction with the embodiments disclosed herein may be implemented directly using hardware, a software module executed by a processor, or a combination of the two. The software module may be placed in a random access memory (RAM), a memory, a read-only memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0117] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A charging and discharging data acquisition device, characterized in that: The device comprises: Power supply module and data acquisition module; The power supply module is connected to the data acquisition module; The power supply module is used to supply power to the data acquisition module; The data acquisition module is used to collect charging and discharging data, wherein the charging and discharging data is the data when the electric vehicle that complies with the European standard charging protocol is charged and discharged with the charging pile; The data acquisition module includes an input / output I / O acquisition module; The I / O acquisition module is respectively connected to the current sensor, the voltage acquisition line and the proximity-guided PP acquisition line; The I / O acquisition module is used to collect loop current signals and voltage signals of the three-phase line, the neutral line, the ground line, the positive electrode of the DC power supply, and the negative electrode of the DC power supply through the current sensor and the voltage acquisition line; The I / O acquisition module is also used to collect the voltage signal between the charging plug and the charging gun through the PP acquisition line; The data acquisition module also includes: a power line communication PLC data acquisition decoupling module; The PLC data acquisition decoupling module is connected to the control pilot loop CP acquisition line; The PLC data acquisition decoupling module is used to collect high level values, low voltage values, frequencies, duty cycles and PLC interface data on the CP loop through the CP acquisition line.

2. The device according to claim 1, characterized in that The charging and discharging data acquisition device further includes: a control storage module; The control storage module is connected to the power supply module and the data acquisition module respectively; The control storage module is used to control the operation of the power supply module and the data acquisition module, and store the charge and discharge data collected by the data acquisition module.

3. The device according to claim 2, characterized in that The charging and discharging data acquisition device further includes: a state indication module; The status indication module is connected to the power supply module and the data acquisition module respectively; The power supply module is used to supply power to the status indication module; When the power supply module starts to supply power to the data acquisition module, the state indication module is used to indicate that the current working state of the charge and discharge data acquisition device is recording; When the power supply module continues to supply power to the data acquisition module but a fault occurs in the data acquisition module, the status indication module is used to indicate that the current working status of the charge and discharge data acquisition device is a fault.

4. The device according to claim 3, characterized in that The status indication module includes a red light and a green light; When the power supply module starts to supply power to the data acquisition module, the green light turns on to indicate that the current working state of the charge and discharge data acquisition device is recording; When the power supply module continues to supply power to the data acquisition module but the data acquisition module fails, the red light is on to indicate that the current working state of the charge and discharge data acquisition device is a failure.

5. The device according to claim 3, characterized in that The charging and discharging data acquisition device further includes: a buzzer; The buzzer is connected to the power supply module and the status indication module respectively; The power supply module is used to supply power to the buzzer; When the status indication module indicates that the current working status of the charge and discharge data acquisition device is a fault, the buzzer is used to emit a prompt sound.

6. The device according to claim 1, characterized in that The charging and discharging data acquisition device further includes: a display screen; The display screen is connected to the power supply module and the data acquisition module respectively; The power supply module is used to supply power to the display screen; The display screen is used to display the charging and discharging data.

7. The device according to claim 6, characterized in that When the data acquisition module fails, the display screen is also used to display the failure data.

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