Distributed power supply access unit testing device and method based on multiple interfaces

Abstract

The invention discloses a distributed power supply access unit testing device and method based on multiple interfaces. The interfaces of the device comprise a control module, a power supply module, a clock module, a data communication module, a remote communication module and a storage module. The control module is used for controlling other modules to operate; the power supply module is used for converting input alternating current or direct current into direct current and outputting the direct current to supply power to the device; the clock module is used for providing time reference for the device; the data communication module is used for data parameter interaction of the tested equipment in the test process; the remote communication module is used for data interaction between the system host and the device; and the storage module is used for storing an interaction process between the device and the tested equipment. According to the system interface design scheme for testing the distributed power supply access unit, an entity inverter, an energy storage device, a charging pile and the like in a traditional testing environment are replaced, so that the construction process of the testing environment of the distributed power supply access unit is simplified, and testing parameters are controllable.

Description

Technical Field

[0001] The present invention relates to the technical field of distributed power supply monitoring and control, and more specifically, to a distributed power supply access unit testing device and method based on multiple interfaces. Background Art

[0002] At present, my country's distributed photovoltaic development momentum is strong, and it has become an important force in promoting energy structure transformation and green and low-carbon development. The government has introduced a series of supporting policies to encourage the construction and application of distributed photovoltaics, which has promoted the rapid development of the distributed photovoltaic industry. Driven by technological progress and cost reduction, the installed capacity of distributed photovoltaics continues to grow, and the coverage areas continue to expand. It has been widely used in many fields from industry, commerce to residential housing. At the same time, the demand for distributed photovoltaic grid connection has also increased, and the number of distributed power access unit equipment has increased with the expansion of the grid connection scale.

[0003] During the electromagnetic testing phase of the distributed power access unit, the inverter or energy storage device is required to collaboratively verify its basic functions. The traditional approach is to use physical inverters, energy storage, charging piles, etc. to build a test environment, but this process not only involves a lot of wiring, but also because the parameter data items of inverters, energy storage devices, etc. are numerous and the data is not easy to control, they need to be manually configured and debugged one by one, which is time-consuming and inefficient. With the widespread application and deepening of distributed power systems, the market demand for distributed power access units is increasing, and the equipment is facing a significant increase in testing tasks and workload before delivery. If the traditional physical environment construction test method continues to be used, the detection of products will become extremely complicated and time-consuming, occupying a lot of space, cumbersome wiring work, diverse communication methods, and complex experimental environment parameter settings, all of which will seriously restrict test efficiency and increase test costs. Summary of the invention

[0004] The technical solution of the present invention provides a distributed power access unit testing device and method based on multiple interfaces to solve the problem of how to test the distributed power access unit based on multiple interfaces.

[0005] In order to solve the above problems, the present invention provides a distributed power access unit test device based on multiple interfaces, wherein the interfaces of the device include a control module, a power module, a clock module, a data communication module, a remote communication module and a storage module; the control module controls the operation of the power module, the clock module, the data communication module, the remote communication module and the storage module;

[0006] The power module is used to convert input AC or DC power into DC output to power the device;

[0007] The clock module is used to provide a time reference for the device;

[0008] The data communication module is used for the data parameter interaction of the device under test during the test process;

[0009] The remote communication module is used for the data interaction between the system host and the device;

[0010] The storage module is used to store the interaction process between the device and the device under test.

[0011] Preferably, the power supply module includes a switching power supply, a power management circuit, a super capacitor and a boost circuit;

[0012] The switching power supply converts the input alternating current or direct current into a direct current output;

[0013] The power management circuit is used to control the stability and accuracy of the voltage signal and current signal output by the power supply;

[0014] The super capacitor provides energy supplement for the power supply module;

[0015] The boost circuit is used to convert low voltage into high voltage.

[0016] Preferably, the data communication module includes an RS-485 interface and a telemetry signal interface;

[0017] The RS-485 interface is connected to the 485 interface of the device under test, and the RS-485 interface is provided with an isolation chip;

[0018] The telemetry signal interface is connected to the output interface of the device under test.

[0019] Preferably, the remote communication module includes a GPRS interface and an Ethernet interface, and the GPRS interface and the Ethernet interface are used for reading and writing test data of the device under test.

[0020] Preferably, the clock module includes a clock chip, a one-second pulse generator and a clock battery,

[0021] The clock chip is used to provide a time reference;

[0022] The clock battery is a backup battery;

[0023] The one-second pulse generator is used to generate a one-second pulse signal.

[0024] On the other hand of the present invention, the present invention provides a multi-interface-based distributed power access unit testing method, the method comprising establishing a testing device, the interfaces of the device including a control module, a power module, a clock module, a data communication module, a remote communication module and a storage module; controlling operations on the power module, the clock module, the data communication module, the remote communication module and the storage module through the control module;

[0025] Converting the input alternating current or direct current into a direct current output through the power module to supply power to the device;

[0026] Providing a time reference for the device through the clock module;

[0027] Performing data parameter interaction with the device under test during the testing process through the data communication module;

[0028] Performing data interaction with the system host through the remote communication module;

[0029] Storing the interaction process between the device and the device under test through the storage module.

[0030] Preferably, the power module includes a switching power supply, a power management circuit, a super capacitor and a boost circuit;

[0031] Converting the input alternating current or direct current into a direct current output through the switching power supply;

[0032] Controlling the stability and accuracy of the voltage signal and current signal output by the power supply through the power management circuit;

[0033] Providing energy supplement for the power module through the super capacitor;

[0034] Converting a low voltage into a high voltage through the boost circuit.

[0035] Preferably, the data communication module includes an RS-485 interface and a telemetry signal interface;

[0036] The RS-485 interface is connected to the 485 interface of the device under test, and the RS-485 interface is provided with an isolation chip;

[0037] The telemetry signal interface is connected to the output interface of the device under test.

[0038] Preferably, the remote communication module includes a GPRS interface and an Ethernet interface, and the GPRS interface and the Ethernet interface are used for reading and writing test data of the device under test.

[0039] Preferably, the clock module includes a clock chip, a second pulse generator and a clock battery,

[0040] The clock chip is used to provide a time reference;

[0041] The clock battery is a backup battery;

[0042] The second pulse generator is used to generate a second-level pulse signal.

[0043] The technical solution of the present invention provides a distributed power access unit test device based on multiple interfaces. The interfaces of the device include a control module, a power module, a clock module, a data communication module, a remote communication module, and a storage module; the operations of the power module, the clock module, the data communication module, the remote communication module, and the storage module are controlled through the control module; the power module is used to convert the input alternating current or direct current into a direct current output to supply power to the device; the clock module is used to provide a time reference for the device; the data communication module is used for data parameter interaction of the device under test during the test process; the remote communication module is used for data interaction between the system host and the device; the storage module is used to store the interaction process between the device and the device under test. The system interface design solution for testing the distributed power access unit proposed by the present invention replaces the physical inverters, energy storage, charging piles, etc. in the traditional test environment, integrates the test parameter configuration function, the test result statistics function, and the test result display and judgment function, solves the problems of cumbersome wiring in the test environment and difficult control of the data of the physical inverter, improves the test efficiency, and simplifies the test environment construction process of the distributed power access unit and makes the test parameters controllable. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The exemplary embodiments of the present invention can be more fully understood by referring to the following drawings:

[0045] Figure 1 Schematic diagram of the overall interface design of the analog data tooling according to the preferred embodiment of the present invention;

[0046] Figure 2 Schematic diagram of the interface design of the data communication module according to the preferred embodiment of the present invention;

[0047] Figure 3 Schematic diagram of the interface design of the remote module according to the preferred embodiment of the present invention;

[0048] Figure 4 Schematic diagram of the interface design of the clock module according to the preferred embodiment of the present invention;

[0049] Figure 5 Schematic diagram of the interface design of the power module according to the preferred embodiment of the present invention; and

[0050] Figure 6A flowchart of a test method for a distributed power access unit based on multiple interfaces according to a preferred embodiment of the present invention. Specific embodiments

[0051] Now, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to disclose the present invention in detail and completely, and to fully convey the scope of the present invention to those skilled in the art. The terms in the exemplary embodiments shown in the drawings are not intended to limit the present invention. In the drawings, the same unit / element is denoted by the same reference numeral.

[0052] Unless otherwise specified, the terms (including scientific and technical terms) used herein have the ordinary meaning understood by those skilled in the art. In addition, it can be understood that the terms defined in the commonly used dictionary should be understood to have a meaning consistent with the context of their related fields, and should not be understood as idealized or overly formal meanings.

[0053] Figure 1 A schematic diagram of the overall interface design of the simulation data tooling according to a preferred embodiment of the present invention.

[0054] The present invention provides a system interface design solution for testing a distributed power access unit, which replaces the physical inverters, energy storage devices, charging piles, etc. in the traditional test environment, integrates functions such as test parameter configuration, test result statistics, and test result display and judgment, solves the problems of cumbersome wiring in the test environment and difficult control of the data of physical inverters, improves the test efficiency, and simplifies the process of building the test environment for the distributed power access unit and makes the test parameters controllable.

[0055] As Figure 1 shown, the present invention provides a test device for a distributed power access unit based on multiple interfaces. The interfaces of the device include a control module, a power module, a clock module, a data communication module, a remote communication module, and a storage module; the operations of the power module, the clock module, the data communication module, the remote communication module, and the storage module are controlled by the control module;

[0056] The power module is used to convert the input alternating current or direct current into a direct current output to supply power to the device;

[0057] The clock module is used to provide a time reference for the device;

[0058] The data communication module is used for data parameter interaction of the device under test during the test process;

[0059] The remote communication module is used for data interaction between the system host and the device;

[0060] The storage module is used to store the interaction process between the device and the device under test.

[0061] The present invention designs an analog test data tooling interface for distributed power access unit testing. This interface design covers a control module, a power supply module, a clock module, a data communication module, a remote communication module, and a storage module.

[0062] The control module is mainly based on the core board and operates and controls other functional modules through the data bus. It can perform corresponding operations on each functional module according to the received instructions, realizing functions such as data configuration, processing, and storage in distributed power access unit testing.

[0063] Preferably, the power supply module includes a switching power supply, a power management circuit, a super capacitor, and a boost circuit;

[0064] The switching power supply converts the input alternating current or direct current into a direct current output;

[0065] The power management circuit is used to control the stability and accuracy of the voltage signal and current signal output by the power supply;

[0066] The super capacitor provides energy supplement for the power supply module;

[0067] The boost circuit is used to convert low voltage to high voltage.

[0068] The power supply module provided by the present invention is composed of a switching power supply, a power management circuit, a super capacitor, and a boost circuit. Among them, the switching power supply is the core, and through high-frequency switching actions, it converts the input alternating current or direct current into a stable direct current output to supply power to the entire device. The power management circuit is responsible for monitoring and adjusting the power output to ensure the stability and accuracy of voltage and current. The super capacitor serves as a backup power supply or instantaneous energy supplement, which can cope with sudden power demands or voltage fluctuations to ensure the stable operation of the device. The boost circuit is responsible for converting low voltage to high voltage to meet the high-voltage power supply requirements of specific components or functional modules. This module ensures the normal power supply of the analog data test tooling. In the event of an accidental power outage, the super capacitor and the boost circuit can maintain their working states, preventing abnormal test data and facilitating subsequent data analysis.

[0069] Preferably, the data communication module includes an RS-485 interface and a telemetry signal interface;

[0070] The RS-485 interface is connected to the 485 interface of the device under test, and an isolation chip is provided on the RS-485 interface;

[0071] The telemetry signal interface is connected to the output interface of the device under test.

[0072] The data communication module provided by the present invention includes an RS-485 interface and a telemetry signal interface. By simulating the 485 communication response and telemetry signal status of the device under test, this module realizes functions such as parameter reading and writing coordination, simulation of process event triggering conditions, and simulation of telemetry signal status changes during the test process of the device under test, and is the core part of the analog data tooling.

[0073] Preferably, the remote communication module includes a GPRS interface and an Ethernet interface, and the GPRS interface and the Ethernet interface are used for reading and writing test data of the device under test.

[0074] The remote communication module provided by the present invention includes a GPRS module and an Ethernet module. The analog data tooling can be connected to the test system through GPRS or Ethernet for data interaction. Testers can, according to test requirements, configure and manage the analog data inside the analog data tooling through the master station, so that the test environment meets the functional test standards and satisfies the test process requirements.

[0075] Preferably, the clock module includes a clock chip, a second pulse generator and a clock battery,

[0076] The clock chip is used to provide a time reference;

[0077] The clock battery is a backup battery;

[0078] The second pulse generator is used to generate a second-level pulse signal.

[0079] The clock module provided by the present invention includes a clock chip, a clock battery and a second pulse generator. The clock chip provides accurate time information to ensure the stability and reliability of the time reference of the entire test system. The clock battery, as a backup power supply, continues to supply power to the clock chip when the main power fails, ensuring the continuity of the system time and avoiding time reset due to power interruption. The second pulse generator generates a stable second-level pulse signal, which is crucial for time synchronization and event triggering that require accuracy to the second during the test process.

[0080] The storage module provided by the present invention can save the test interaction process in the form of a log inside the analog data tooling. If it is necessary to analyze the test interaction, the test log can be directly copied, which is convenient for testers to perform process analysis and confirm whether it meets the test standards.

[0081] Figure 1 It is a general interface design block diagram of the analog data tooling for distributed power access unit testing, including a control module, a power module, a clock module, a data communication module, a remote communication module and a storage module.

[0082] Figure 2 It is the interface design of the data communication module of the analog data tooling, including 2-way 485 and 2-way telemetry signals, which are responsible for data interaction with the device under test.

[0083] Figure 3 For the design of the remote module interface, including the GPRS interface and the Ethernet interface.

[0084] Figure 4 For the design of the clock module interface, including the clock chip, the second pulse, and the clock battery.

[0085] Figure 5 For the design of the power supply module interface, including the switching power supply, the power management circuit, the super capacitor, and the boost circuit.

[0086] Figure 1 This is the overall interface design block diagram of the analog data tooling for the distributed power access unit test in the embodiment of the present invention. As Figure 1 shown, the overall tooling consists of a power supply module, a storage module, a control module, a clock module, a data communication module, a remote module, and a system bus responsible for transmission. Testers can directly configure the parameters of the analog data tooling through the human-computer interaction interface, or use the upper computer system to modify the data parameters that need to be replied through the remote module on the analog tooling to adapt to the test requirements of distributed power access units with different functions and different standards; the data reading, writing, interaction, and storage of the analog data tooling are all controlled by the control module, and the data is transmitted between the control module and other modules through the system bus, enabling the system to handle complex and large amounts of data in the test; the tooling is connected to the interface of the device under test through the data transmission module, responsible for the transmission of test data between devices, and can directly access the 485 interface and the telemetry interface of the device under test, simulating the test processes such as parameter reading and writing, flexible control, charge and discharge management, energy storage management, event triggering and recording of devices such as inverters, energy storage, and charging piles in the test environment; the tooling has a power supply module that provides reasonable and stable power supply for the normal operation of the tooling; the clock module provides a stable time reference, ensures the continuity of the system time, generates a stable second-level signal, which is crucial for time synchronization and event triggering in the test; the storage module can record the test data interaction in the tooling in the form of a log, facilitating the subsequent analysis process of the test.

[0087] The interface design of the data transmission module of the present invention is as Figure 2 shown. The data transmission module is divided into two parts: 2-way RS-485 and 2-way telemetry. The RS-485 circuit is directly connected to the 485 interface of the device under test, responsible for data interaction with the device under test according to the corresponding protocol. There is an isolation chip between the 485 circuit and the UART of the core board of the tooling, avoiding damage to the device caused by the impact on the test environment when the 485 circuit receives strong electrical signals during the test, effectively ensuring the test safety. Specifically, the telemetry circuit can be connected to the output interface of the device under test to monitor the level change of the device under test in real time, so as to confirm whether it meets the test standards in the test process.

[0088] The remote module interface design of the present invention is as follows Figure 3 , the remote module includes a GPRS interface and an Ethernet interface. Testers can select different remote connection methods according to the specific test environment and configure the parameters of the analog data tooling accordingly. In a general test environment, both the GPRS interface and the Ethernet interface can be used for test data reading and writing; in an electromagnetic experiment test environment, the GPRS interface is selected to configure the tooling data through the wireless public network to avoid equipment damage caused by electromagnetic shock to the host.

[0089] The clock module interface design of the present invention is as follows Figure 4 , the clock module consists of a clock chip, a second pulse generator and a clock battery. Specifically, the high stability and reliability of the test system time reference mainly rely on the accurate time information provided by the clock chip. In the emergency situation of main power failure, the clock battery, as a backup power supply, will be immediately activated and seamlessly supply power to the clock chip continuously, thus ensuring the continuity and consistency of the system time and effectively avoiding the risk of system time reset that may be caused by accidental power interruption. At the same time, the second pulse generator plays a crucial role in the test process by generating high-precision and stable second-level pulse signals. This function provides an indispensable professional guarantee for meeting the requirement of time synchronization accurate to the second level and ensuring the accurate triggering of time-sensitive events.

[0090] The power supply module interface design of the present invention is as follows Figure 5 , the power supply module includes a switching power supply, a power management circuit, a super capacitor and a boost circuit. Specifically, the switching power supply, as the core component of power supply, through an efficient conversion mechanism, stably converts the input power into DC output to provide continuous energy supply for the whole device. The power management circuit is responsible for finely monitoring and regulating the output power to ensure that the stability and accuracy of voltage and current reach high standards. The super capacitor acts as an auxiliary power supply in this system and can effectively cope with sudden power demands or voltage fluctuations to ensure the stable operation of the device. The boost circuit is specifically responsible for converting low voltage into high voltage to meet the demand of high-voltage power supply for specific components or functional modules in the device. This power supply module provides reliable power guarantee for the analog data test tooling. In the event of accidental power outage, the super capacitor and the boost circuit can work together quickly to maintain the working state of the test tooling, effectively prevent abnormal test data from occurring, and lay a foundation for subsequent data analysis work.

[0091] The present invention provides a design for an analog data tooling interface for testing distributed power access units, including a power module, a storage module, a control module, a clock module, a data communication module, and a remote module. This design integrates multiple key functions, including flexible configuration of test parameters, statistical analysis of test results, and intuitive display and automatic judgment of test results, effectively solving the problems of complex wiring in traditional test environments and difficult precise control of entity inverters, charging piles, and energy storage data. This improvement not only significantly improves the test efficiency but also simplifies the process of setting up the test environment for distributed power access units, achieving a high degree of controllability of test parameters.

[0092] The design of the analog data tooling interface for testing distributed power access units provided by the present invention has the following advantages:

[0093] 1. In the current testing of distributed power access units, it is difficult to set up the test environment, and there are obvious deficiencies in the equipment and methods for testing distributed power access units. Based on the equipment standard requirements, this interface design scheme uses simulation technology, which not only successfully replaces the actual equipment but also highly simulates the communication, monitoring, and regulation functions of most similar products on the market. By simulating the distributed power environment, a comprehensive test scenario is provided for the equipment to be tested. Under this scheme, it is possible to efficiently complete the comprehensive testing of the acquisition, monitoring, and regulation functions of equipment such as inverters, charging piles, and energy storage systems in the test process of distributed power access units in a short time, without the need for cumbersome manual wiring changes or equipment switching, thus greatly reducing the test workload and significantly improving the richness and efficiency of the test.

[0094] 2. The present invention can access the distributed power access unit test system through the wireless public network, realizing the integration of testing, data configuration, data management, and data analysis, improving the test intelligence, enhancing the test efficiency, and enriching the test perspectives.

[0095] 3. The present invention can select the data mode according to specific test requirements, flexibly adapt to conditions such as parameter reading and writing, soft control, remote signal state change, and event trigger simulation of equipment such as inverters, charging piles, and energy storage systems in the test process of distributed power access units, making it easy to set up the test environment and solving the problem of difficult control of actual equipment data.

[0096] The present invention relates to the design of a simulation test data tooling interface for distributed power access unit testing, which covers a control module, a power module, a clock module, an RS-485 interface, a telemetry interface, a remote communication module, and a storage module. It can quickly simulate functions such as parameter reading and writing of inverters, energy storage, charging piles, flexible photovoltaic control, energy storage process regulation, and various event responses. In addition, a bus architecture design is adopted, which facilitates future function expansion. This device can effectively meet the test requirements when the device under test has numerous RS-485 interfaces and telemetry interfaces, satisfy complex test scenarios, simplify the construction process of the test environment, and thus improve the test efficiency and the accuracy of the results.

[0097] Figure 6 It is a flowchart of a distributed power access unit test method based on multiple interfaces according to a preferred embodiment of the present invention.

[0098] As Figure 6 shown, the present invention provides a distributed power access unit test method based on multiple interfaces. The method includes establishing a test device, and the interfaces of the device include a control module, a power module, a clock module, a data communication module, a remote communication module, and a storage module; controlling the operations of the power module, the clock module, the data communication module, the remote communication module, and the storage module through the control module;

[0099] Converting the input alternating current or direct current into a direct current output through the power module to supply power to the device;

[0100] Providing a time reference for the device through the clock module;

[0101] Performing data parameter interaction with the device under test during the test process through the data communication module;

[0102] Performing data interaction with the system host through the remote communication module;

[0103] Storing the interaction process between the device and the device under test through the storage module.

[0104] Preferably, the power module includes a switching power supply, a power management circuit, a super capacitor, and a boost circuit;

[0105] Converting the input alternating current or direct current into a direct current output through the switching power supply;

[0106] Controlling the stability and accuracy of the voltage signal and current signal output by the power supply through the power management circuit;

[0107] Providing energy supplement for the power module through the super capacitor;

[0108] Converting the low voltage into a high voltage through the boost circuit.

[0109] Preferably, the data communication module includes an RS-485 interface and a telemetry interface;

[0110] The RS-485 interface is connected to the 485 interface of the device under test, and the RS-485 interface is provided with an isolation chip;

[0111] The telemetry interface is connected to the output interface of the device under test.

[0112] Preferably, the remote communication module includes a GPRS interface and an Ethernet interface, and the GPRS interface and the Ethernet interface are used for reading and writing test data of the device under test.

[0113] Preferably, the clock module includes a clock chip, a second pulse generator and a clock battery,

[0114] The clock chip is used to provide a time reference;

[0115] The clock battery is a backup battery;

[0116] The second pulse generator is used to generate a second-level pulse signal.

[0117] A test method for a multi-interface-based distributed power access unit according to a preferred embodiment of the present invention corresponds to a test device for a multi-interface-based distributed power access unit according to a preferred embodiment of the present invention, and will not be elaborated here.

[0118] Those skilled in the art should understand that the embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code. The solutions in the embodiments of the present invention can be implemented in various computer languages, for example, object-oriented programming languages such as Java and interpreted scripting languages such as JavaScript.

[0119] The present invention is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each flow and / or block in the flowchart and / or block diagram, and the combination of flows and / or blocks in the flowchart and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate for implementing in the process Figure 1 one process or multiple processes and / or blocks Figure 1means for the functions specified in one or more blocks.

[0120] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the computer-readable memory produce a manufacture including an instruction means that implements the functions specified in one Figure 1 one or more processes and / or blocks Figure 1 means for the functions specified in one or more blocks.

[0121] These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus, such that a series of operational steps are performed on the computer or other programmable apparatus to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable apparatus provide steps for implementing the functions specified in one Figure 1 one or more processes and / or blocks Figure 1 means for the functions specified in one or more blocks.

[0122] Although the preferred embodiments of the present invention have been described, additional changes and modifications can be made by those skilled in the art once they learn of the basic inventive concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications that fall within the scope of the present invention.

[0123] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

[0124] The present invention has been described by reference to a few embodiments. However, as is well known to those skilled in the art, other embodiments equivalent to those disclosed above of the present invention equally fall within the scope of the present invention as defined by the appended patent claims.

[0125] Generally, all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless otherwise clearly defined therein. All references to "a / the [device, component, etc.]" are to be construed openly as at least one instance of the device, component, etc., unless otherwise clearly stated. The steps of any method disclosed herein need not be performed in the exact order disclosed, unless clearly stated.

Claims

1. A distributed power access unit test device based on multiple interfaces. The interfaces of the device include a control module, a power supply module, a clock module, a data communication module, a remote communication module, and a storage module. The control module controls the operations of the power supply module, the clock module, the data communication module, the remote communication module, and the storage module. The power supply module is used to convert the input alternating current or direct current into a direct current output to supply power to the device. The clock module is used to provide a time reference for the device. The data communication module is used for data parameter interaction of the device under test during the test process. The remote communication module is used for data interaction between the system host and the device. The storage module is used to store the interaction process between the device and the device under test.

2. The device according to claim 1, wherein the power supply module includes a switching power supply, a power management circuit, a super capacitor, and a boost circuit. The switching power supply converts the input alternating current or direct current into a direct current output. The power management circuit is used to control the stability and accuracy of the voltage signal and current signal output by the power supply. The super capacitor provides energy supplement for the power supply module. The boost circuit is used to convert a low voltage into a high voltage.

3. The device according to claim 1, wherein the data communication module includes an RS-485 interface and a telemetry signal interface. The RS-485 interface is connected to the 485 interface of the device under test, and an isolation chip is provided on the RS-485 interface. The telemetry signal interface is connected to the output interface of the device under test.

4. The device according to claim 1, wherein the remote communication module includes a GPRS interface and an Ethernet interface, and the GPRS interface and the Ethernet interface are used for reading and writing test data of the device under test.

5. The device according to claim 1, wherein the clock module includes a clock chip, a second pulse generator, and a clock battery. The clock chip is used to provide a time reference. The clock battery is a backup battery. The second pulse generator is used to generate a second-level pulse signal.

6. A distributed power access unit test method based on multiple interfaces. The method includes establishing a test device. The interfaces of the device include a control module, a power supply module, a clock module, a data communication module, a remote communication module, and a storage module. The control module controls the operations of the power supply module, the clock module, the data communication module, the remote communication module, and the storage module. The input alternating current or direct current is converted into a direct current output by the power supply module to supply power to the device. A time reference is provided for the device by the clock module. Data parameter interaction is performed with the device under test during the test process through the data communication module. Data interaction is performed with the system host through the remote communication module. The interaction process between the device and the device under test is stored by the storage module.

7. The method according to claim 6, wherein the power supply module includes a switching power supply, a power management circuit, a super capacitor, and a boost circuit. Convert the input AC or DC power into DC output through the said Tianguan power supply; Control the stability and accuracy of the voltage signal and current signal output by the power supply through the said power management circuit; Provide energy supplement for the said power module through the said super capacitor; Convert low voltage into high voltage through the said boost circuit.

8. The method according to claim 6, wherein the data communication module comprises an RS-485 interface and a telemetry interface; The RS-485 interface is connected to the 485 interface of the device under test, and the RS-485 interface is provided with an isolation chip; The telemetry interface is connected to the output interface of the device under test.

9. The method according to claim 6, wherein the remote communication module comprises a GPRS interface and an Ethernet interface, and the GPRS interface and the Ethernet interface are used for reading and writing test data of the device under test.

10. The method according to claim 6, wherein the clock module comprises a clock chip, a second pulse generator and a clock battery, The clock chip is used to provide a time reference; The clock battery is a backup battery; The second pulse generator is used to generate a second-level pulse signal.

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