A power distribution terminal commissioning system

Abstract

This invention discloses a power distribution terminal commissioning and testing system. The system includes a power distribution terminal testing module, which comprises a control and communication unit and a signal measurement unit. The control and communication unit's master controller sends control commands, and the simulated master station sends scheduling signals to the power distribution terminal based on these commands. The master station controls the power distribution terminal to operate according to the simulated power grid signals and transmits the terminal's operating information to the master controller. A digital input / output subunit transmits control commands to the power distribution terminal and transmits the sensing information fed back by the terminal to the master controller. The signal measurement unit sends reference information to the master controller. The master controller determines the operating status of the power distribution terminal based on the operating information, sensing information, and reference information. By real-time acquisition of key operating parameters under fault conditions of the power distribution terminal, the system achieves internally driven, autonomous, and comprehensive testing, enabling real-time synchronous interaction and multi-information link collaborative verification between the power distribution terminal and the testing end, effectively ensuring the reliable operation of the power distribution terminal.

Description

Technical Field

[0001] The present invention relates to the field of power distribution terminal commissioning technology, and in particular to a power distribution terminal commissioning system. Background Technology

[0002] Currently, distribution automation terminals, represented by data transfer units (DTUs) and feeder terminal units (FTUs), have generally achieved telemetry, telesignaling, remote control, and remote adjustment functions. However, in their full life cycle management, the problems with supporting testing equipment are becoming increasingly prominent, mainly manifested in the following ways: The existing testing system fails to meet the needs of self-recovery and automatic detection of distribution terminal faults, which is an internally driven maintenance requirement. After a fault occurs, manual testing is still relied upon, failing to trigger the comprehensive autonomous testing required for internally driven maintenance. It cannot cover the verification of fault impacts in telemetry, remote signaling, remote control, and remote adjustment, and it is difficult to collect key operating parameters in real time under fault conditions. This leads to delayed fault location, affecting not only the continuity of power supply to the distribution network but also expanding the scope of fault impact due to accumulated problems, making it difficult to guarantee the reliability of terminal operation. Furthermore, existing testing instruments rely on single-link serial commissioning, failing to achieve real-time data interaction between the distribution terminal master station, terminal equipment, testing end, and operation end. This results in a disconnect between the debugging logic and the field operation scenario, making it difficult to meet the requirements of collaborative verification across multiple information links, thus compromising the quality of distribution terminal maintenance. Summary of the Invention

[0003] This invention provides a power distribution terminal commissioning and testing method. By collecting key operating parameters of the power distribution terminal under test in real time under fault conditions, it realizes the internally driven autonomous and comprehensive testing of the power distribution terminal under test, realizes real-time synchronous interaction of data between the power distribution terminal under test and the test terminal and collaborative verification of multiple information links, and ensures the operational reliability of the power distribution terminal.

[0004] This invention provides a power distribution terminal commissioning and testing system, which includes a power distribution terminal testing module; The power distribution terminal test module includes a control and communication unit and a signal measurement unit; The control and communication unit includes a test master controller, an analog master station, and digital input / output subunits; The test controller is used to send control commands; The simulation master station is connected to the test master control and the power distribution terminal under test. It is used to send scheduling signals to the power distribution terminal under test according to the control instructions, so as to control the power distribution terminal under test to operate according to the simulated power grid signals, and transmit the operation information of the power distribution terminal under test to the test master control. The digital input / output subunit is connected to the test master controller and the power distribution terminal under test. It is used to transmit control commands to the power distribution terminal under test and transmit the sensing information fed back by the power distribution terminal under test to the test master controller. The signal measurement unit is connected to the test master controller and is used to send reference information to the test master controller; The test controller is used to determine the operating status of the power distribution terminal under test based on the operating information, sensing information, and reference information.

[0005] Optionally, the power distribution terminal commissioning system also includes an electrical connection socket module, which includes a communication interface; The control and communication unit also includes a communication subunit, which is connected to the analog master station and the communication interface, and the communication interface is connected to the power distribution terminal under test. The communication subunit is used to transmit dispatch signals to the power distribution terminal under test and transmit operating electrical parameters to the analog master station.

[0006] Optionally, the power distribution terminal commissioning system also includes an electrical connection socket module, which includes a control signal interface; The control signal interface is electrically connected to the digital input / output subunit and the power distribution terminal under test, and is used to transmit control commands to the power distribution terminal under test and to transmit sensing information to the digital input / output subunit.

[0007] Optionally, the signal measurement unit includes an AC analog quantity generation subunit, a programmable matrix switch, and a verification subunit; The AC analog quantity generation subunit is electrically connected to the test main controller and the programmable matrix switch, and is used to provide the programmable matrix switch with analog power grid AC input signals according to control commands; The programmable matrix switch is communicatively connected to the test master control, the power distribution terminal under test and the verification unit respectively, and is used to allocate and transmit the analog power grid AC input signal to the power distribution terminal under test and the verification subunit according to the control command. The verification subunit is electrically connected to the test master control unit. It is used to verify and correct the analog power grid AC input signal to generate a reference signal and transmit the reference signal to the test master control unit.

[0008] Optionally, the power distribution terminal commissioning system also includes a power grid simulation signal generation module, which is electrically connected to the programmable matrix switch; The power grid simulation signal generation module is used to send simulated power grid signals to the programmable matrix switch; Programmable matrix switches are used to allocate and transmit analog power grid signals to the power distribution terminal under test according to control commands.

[0009] Optionally, the power distribution terminal commissioning system also includes an electrical connection socket module, which includes a power connection interface and an AC power acquisition interface; The power distribution terminal under test includes a power supply terminal and an AC signal terminal. The power supply terminal is electrically connected to the power connection interface, and the AC signal terminal is electrically connected to the AC power acquisition interface. The programmable matrix switch is electrically connected to the power connection interface and the external power supply respectively. It is used to distribute the power supply signal of the external power supply according to the control command and then transmit it to the power connection interface. The programmable matrix switch is also electrically connected to the AC power acquisition interface to transmit the analog power grid AC input signal to the AC power acquisition interface.

[0010] Optionally, the test master controller is also used to acquire the operating electrical parameters of the power distribution terminal under test through the communication interface, communication sub-unit and simulation master station, and monitor the energy consumption of the power distribution terminal under test according to the operating electrical parameters; the operating electrical parameters include voltage signal, current signal and power signal.

[0011] Optionally, the power distribution terminal commissioning system also includes a first operation port, and the power distribution terminal testing module also includes a first interaction unit, which is located at the first operation port; The first interactive unit is used to respond to the start command to start the power distribution terminal test module, and output the working status information of the power distribution terminal test module and the running status information of the power distribution terminal under test.

[0012] Optionally, the power distribution terminal commissioning system also includes a second operation port, and the power grid simulation signal generation module includes a second interaction unit, which is located at the second operation port; The second interactive unit is used to respond to configuration commands to complete the configuration of the simulated power grid signal and output the working status information of the power grid simulation signal generation module.

[0013] Optionally, the power distribution terminal commissioning system may also include a mobile device; The power distribution terminal test module is installed in a portable device.

[0014] This invention provides a power distribution terminal commissioning and testing system. The system includes a power distribution terminal testing module comprising a control and communication unit and a signal measurement unit. The control and communication unit includes a test master controller, an analog master station, and a digital input / output (DIO) subunit. The test master controller sends control commands. The analog master station, connected to the test master controller and the power distribution terminal under test, sends scheduling signals to the power distribution terminal under test according to the control commands to control the terminal to operate according to the analog power grid signals and transmits the terminal's operating information to the test master controller. The DIO subunit, connected to the test master controller and the power distribution terminal under test, transmits control commands to the terminal and transmits the sensing information fed back by the terminal to the test master controller. The signal measurement unit, connected to the test master controller, sends reference information to the test master controller. The test master controller determines the operating status of the power distribution terminal under test based on the operating information, sensing information, and reference information. When a fault occurs in the power distribution terminal under test, the power distribution terminal test module automatically initiates full-link testing. Through unified scheduling of the analog master station and digital input / output subunits by the test master control, an end-to-end information link is constructed to achieve full-link interactive verification. It covers telemetry information, remote signaling information, remote control information, and remote adjustment information, enabling real-time data acquisition and intelligent diagnosis, and timely triggering of internally driven self-healing repair to ensure the operational reliability of the power distribution terminal under test. This solves the problem of test logic being disconnected from the field operation scenario due to serial commissioning and testing, making it difficult to meet the needs of multi-information link collaborative verification, and thus making it difficult to guarantee the operation and maintenance quality of the power distribution terminal under test. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the circuit structure of a power distribution terminal commissioning system provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the circuit structure of a programmable matrix switch provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of a power distribution terminal test module and a power grid simulation signal generation module provided in an embodiment of the present invention.

[0016] In this embodiment of the invention, the reference numerals and corresponding feature names are as follows: 1-Power distribution terminal test module, 2-Power distribution terminal under test, 3-Electrical connection socket module, 4-Power grid analog signal generation module, 10-Control and communication unit, 20-Signal measurement unit, 11-Test master control, 12-Analog master station, 13-Digital input / output subunit, 14-Communication subunit, 15-First interaction unit, 21-AC analog quantity generation subunit, 22-Programmable matrix switch, 23-Verification subunit, 24-Power supply terminal, 25-AC signal terminal, 26-Second interaction unit. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0018] The terminology used in the embodiments of this invention is for the purpose of describing specific embodiments only and is not intended to limit the invention. It should be noted that directional terms such as "upper," "lower," "left," and "right" described in the embodiments of this invention are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this invention. Furthermore, in the context, it should be understood that when referring to an element being formed "upper" or "lower" of another element, it can be formed not only directly "upper" or "lower" of the other element, but also indirectly "upper" or "lower" of the other element through an intermediate element. The terms "first," "second," etc., are used for descriptive purposes only and do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0019] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0020] Figure 1 This is a circuit structure diagram of a power distribution terminal commissioning and testing system provided in an embodiment of the present invention. This embodiment is applicable to the internally driven automated operation and maintenance commissioning and testing of power distribution terminals, ensuring the reliability of power distribution terminal operation. Figure 1As shown, the power distribution terminal commissioning system includes a power distribution terminal test module 1; the power distribution terminal test module 1 includes a control communication unit 10 and a signal measurement unit 20; the control communication unit 10 includes a test master control 11, an analog master station 12, and a digital input / output subunit 13; the test master control 11 is used to send control commands; the analog master station 12 is connected to the test master control 11 and the power distribution terminal under test 2, and is used to send scheduling signals to the power distribution terminal under test 2 according to the control commands, so as to control the power distribution terminal under test 2 to operate according to the analog power grid signal, and transmit the operating information of the power distribution terminal under test 2 to the test master control 11; the digital input / output subunit 13 is connected to the test master control 11 and the power distribution terminal under test 2, and is used to transmit control commands to the power distribution terminal under test 2, and transmit the sensing information fed back by the power distribution terminal under test 2 to the test master control 11; the signal measurement unit 20 is connected to the test master control 11, and is used to send reference information to the test master control 11; the test master control 11 is used to determine the operating status of the power distribution terminal under test according to the operating information, sensing information, and reference information.

[0021] In this embodiment, the distribution terminal commissioning system includes a distribution terminal testing module 1. The distribution terminal testing module 1 can be understood as integrating control communication and signal measurement functions. It is used to simulate the real power grid operating environment and the dispatching logic of the distribution automation master station, input simulated power grid signals, dispatching instructions, and control signals to the distribution terminal under test 2, and collect the operating information fed back by the distribution terminal under test 2, thus realizing the autonomous commissioning and testing of the distribution terminal under test 2. Exemplarily, the distribution terminal testing module 1 includes, but is not limited to, a distribution terminal tester; this embodiment of the invention does not impose any limitations on this.

[0022] The power distribution terminal test module 1 includes a control and communication unit 10 and a signal measurement unit 20. The control and communication unit 10 can be understood as the control scheduling and signal interaction center of the power distribution terminal test module 1, used to issue test control commands, control the power distribution terminal test module 1 to execute corresponding test functions, and conduct information exchange between the power distribution terminal under test 2 and the power distribution terminal test module 1. The control and communication unit 10 includes a test master control unit 11, an analog master station 12, and a digital input / output subunit 13. The test master control unit 11 can be understood as the control center of the entire power distribution terminal test module 1, responsible for uniformly scheduling the working status and signal switching of each module, and controlling the automatic execution of the test process. The simulated master station 12 can be understood as the scheduling simulation subunit of the control communication unit 10. It is used to simulate the scheduling logic of the real distribution automation master station, receive control commands from the test master control 11, send various scheduling signals to the distribution terminal under test 2, control the distribution terminal under test 2 to operate according to the simulated power grid signals, and transmit the collected real-time operating information of the distribution terminal under test 2 back to the test master control 11, thus establishing an end-to-end communication link and completing the bidirectional interaction of scheduling commands and operating data between the simulated master station 12 and the distribution terminal under test 2. The digital input / output subunit 13 can be understood as the digital signal interaction subunit of the control communication unit 10. It acts as a digital control signal bridge between the distribution terminal under test 2 and the distribution terminal test module 1. It receives control commands from the test master control 11 and transmits them to the distribution terminal under test 2, while simultaneously collecting various information fed back by the distribution terminal under test 2 and transmitting it back to the test master control 11.

[0023] Specifically, the test master control 11 sends control commands, and the simulated master station 12 is communicatively connected to the test master control 11 and the power distribution terminal under test 2. The simulated master station 12 sends dispatch signals to the power distribution terminal under test 2 according to the control commands to control the power distribution terminal under test 2 to operate according to the simulated power grid signals. The core function of the power distribution terminal under test 2 is to collect voltage, current, power, and phase information data from the power grid in real time, and to perform remote signaling and remote control functions based on this data, while simultaneously transmitting the information to the test master control 11. To verify the working status of the power distribution terminal under test 2 under various operating conditions, it is necessary to use input signals from a simulated real power grid to test the information acquisition, information processing, and communication capabilities of the power distribution terminal under test 2. Therefore, a simulated power grid signal needs to be input to the power distribution terminal under test 2 to make it operate in a near-real power grid environment.

[0024] The operating information of the power distribution terminal under test 2 is transmitted back to the test master control 11 via the analog master station 12. The digital input / output subunit 13 is electrically connected to the test master control 11 and the power distribution terminal under test 2, and is used to transmit control commands to the power distribution terminal under test 2, and at the same time transmit the sensing information fed back by the power distribution terminal under test 2 to the test master control 11, realizing digital-level information interaction. Among them, the sensing information includes, but is not limited to, remote signaling and remote control information.

[0025] The signal measurement unit 20 can be understood as the data measurement and data transmission unit of the power distribution terminal test module 1. It is a functional module used for information acquisition, information detection, and quantification measurement. The signal measurement unit 20 can realize signal sensing and data acquisition, converting the signal under test into readable, processable, and transmittable measurement data, providing a basic measurement basis for signal analysis of the power distribution terminal test module 1. Specifically, the signal measurement unit 20 is electrically connected to the test master control 11 and is used to send reference information to the test master control 11. The test master control 11 determines the operating status of the power distribution terminal 2 under test based on the operating information, sensing information, and reference information provided by the signal measurement unit 20.

[0026] For example, after the distribution terminal test module 1 and the distribution terminal under test 2 are connected, the test module 1 starts testing the distribution terminal under test 2. The test master controller 11 sends control commands to the analog master station 12 to control the analog master station 12 to send dispatch signals. After receiving the dispatch commands, the distribution terminal under test 2 operates according to the input analog grid signals and the received dispatch signals, and feeds back the telemetry and remote adjustment information during the operation to the test master controller 11. At the same time, the digital input / output subunit 12 receives the control commands sent by the test master controller 11 and transmits the control commands to the distribution terminal under test 2. The distribution terminal under test 2 feeds back the remote signaling and remote control signals to the test master controller 11 according to the control commands. The signal measurement unit 20 provides standard reference information to the test master controller 11 according to the control commands of the test master controller 11. The test master controller 11 diagnoses and repairs the operational faults of the distribution terminal under test 2 based on the telemetry information, remote signaling information, remote control information, remote adjustment information, and reference information fed back by the distribution terminal under test 2.

[0027] This invention provides a power distribution terminal commissioning and testing system. The system includes a power distribution terminal testing module 1, which comprises a control and communication unit 10 and a signal measurement unit 20. The control and communication unit 10 includes a test master controller 11, an analog master station 12, and a digital input / output subunit 13. The test master controller 11 sends control commands. The analog master station 12 is connected to the test master controller 11 and the power distribution terminal under test 2. Based on the control commands, the analog master station 12 sends scheduling signals to the power distribution terminal under test 2 to control its operation according to the simulated power grid signals and transmits the operating information of the power distribution terminal under test 2 to the test master controller. Digital input / output subunit 13 is connected to the test master control unit 11 and the power distribution terminal under test 2. Digital input / output subunit 13 transmits control commands to the power distribution terminal under test 2 and transmits the sensing information fed back by the power distribution terminal under test 2 to the test master control unit 11. Signal measurement unit 20 is connected to the test master control unit 11 and sends reference information to the test master control unit 11. The test master control unit 11 determines the operating status of the power distribution terminal under test 2 based on the operating information, sensing information, and reference information. When a fault occurs in the power distribution terminal under test 2, the power distribution terminal test module 1 automatically starts a full-link test. Through the unified scheduling of the analog master station 12 and digital input / output subunit 13 by the test master control unit 11, an end-to-end information link is constructed, realizing interactive verification of the entire link information. This covers telemetry information, remote signaling information, remote control information, and remote adjustment information, enabling real-time data acquisition and intelligent diagnosis, timely triggering of internally driven self-healing repair, and ensuring the operational reliability of the power distribution terminal under test 2. This solves the problem that the test logic caused by serial commissioning is disconnected from the field operation scenario, making it difficult to meet the requirements of collaborative verification of multiple information links, which makes it difficult to guarantee the operation and maintenance quality of the tested power distribution terminal 2.

[0028] Optional, you can continue to refer to Figure 1 The power distribution terminal commissioning system also includes an electrical connection socket module 3, which includes a communication interface (not shown in the figure); the control communication unit 10 also includes a communication subunit 14, which is communicatively connected to the analog master station 12 and the communication interface, and the communication interface is communicatively connected to the power distribution terminal under test 2; the communication subunit 14 is used to transmit dispatch signals to the power distribution terminal under test 2 and transmit operating electrical parameters to the analog master station 12.

[0029] In this embodiment, the electrical connection socket module 3 can be understood as a bridge that enables electrical or communication connections between the power distribution terminal under test 2 and the power distribution terminal test module 1. Information transmission between the power distribution terminal under test 2 and the power distribution terminal test module 1 is achieved by connecting the connection line of the power distribution terminal under test 2 to the electrical connection socket module 3, thereby enabling operational monitoring of the power distribution terminal under test 2. Exemplarily, the electrical connection socket module 3 includes, but is not limited to, plug-in ports with various signal interfaces; this embodiment of the invention does not impose any limitations on this.

[0030] Specifically, the electrical connection socket module 3 includes a communication interface, which can be understood as a standardized electrical connection port used to realize information interaction between the power distribution terminal under test 2 and the power distribution terminal test module 1. It is the core part of the electrical connection socket module 2 that undertakes the communication function. The control communication unit 10 also includes a communication subunit 14, which can be understood as a unit used by the control communication unit 10 to establish a communication signal transmission line and realize the interaction of data, instructions, or status information. The communication subunit 14 is communicatively connected to the analog master station 12 and the communication interface, which is communicatively connected to the power distribution terminal under test 2. The communication subunit 14 transmits the dispatch signals issued by the analog master station 12 to the power distribution terminal under test 2. The operating electrical parameters of the power distribution terminal under test 2 during operation are transmitted to the analog master station 12 through the communication subunit 14, and the analog master station 12 then transmits the operating electrical parameters to the test master control 11.

[0031] For example, the communication interface includes, but is not limited to, various communication interfaces such as RS232, RS485, Ethernet, and fiber optic, to adapt to the commissioning of the power distribution terminal 2 under test for different users. This embodiment of the invention does not impose any limitations on this. Operating electrical parameters include, but are not limited to, the voltage, current, and power parameters during the operation of the power distribution terminal 2 under test. This embodiment of the invention does not impose any limitations on this. Simultaneously, the communication subunit 14 is also used to verify the telemetry data and remote adjustment data feedback function of the power distribution terminal 2 under test, ensuring the reliability of the data transmission function of the power distribution terminal 2 under test.

[0032] The power distribution terminal testing system provided in this embodiment of the invention includes an electrical connection socket module 3 with a communication interface and a communication subunit 14 in the control communication unit 10. The communication subunit 14 is communicatively connected to the analog master station 12 and the communication interface, which is communicatively connected to the power distribution terminal 2 under test. The communication subunit 14 transmits dispatch signals from the analog master station 12 to the power distribution terminal 2 under test and transmits the operating electrical parameters of the power distribution terminal 2 under test to the analog master station 12. This configuration establishes an end-to-end communication link, enabling the adaptation of communication protocols and electrical characteristics between the power distribution terminal testing module 1 and the power distribution terminal 2 under test, ensuring the accuracy and real-time performance of dispatch signals and operating electrical parameters during transmission. Simultaneously, the communication interface is compatible with various communication protocols, enabling unified testing and compatibility verification of power distribution terminals 2 from different manufacturers, improving the versatility and scalability of the device. This solves the problems of poor transmission stability and low accuracy caused by signal transmission link interference, as well as the poor versatility of the communication link, which prevents rapid adaptation to different power distribution terminals 2 under test.

[0033] Optional, you can continue to refer to Figure 1The power distribution terminal commissioning system also includes an electrical connection socket module 3, which includes a control signal interface (not shown in the figure). The control signal interface is electrically connected to the digital input / output subunit 13 and the power distribution terminal under test 2, and is used to transmit control commands to the power distribution terminal under test 2 and transmit sensing information to the digital input / output subunit 13.

[0034] In this embodiment, the electrical connection socket module 3 includes a control signal interface, which can be understood as a standardized electrical connection port used to realize information interaction between the power distribution terminal under test 2 and the power distribution terminal test module 1. It is the core part of the electrical connection socket module 3 that undertakes the transmission of control signals.

[0035] Specifically, the control signal interface is electrically connected to the digital input / output subunit 13 and the power distribution terminal under test 2. The digital input / output subunit 13 transmits the control commands received from the test master controller 11 to the power distribution terminal under test 2 via the control signal interface. Simultaneously, the sensing information generated by the power distribution terminal under test 2 during operation is transmitted to the digital input / output subunit 13 via the control signal interface, and then to the test master controller 11. This enables bidirectional transmission of remote signaling and remote control information between the power distribution terminal under test 2 and the power distribution terminal test module 1, completing the accurate testing of the remote signaling and remote control functions of the power distribution terminal under test 2. At the same time, the power distribution terminal test module 1 captures the response signals of the power distribution terminal under test 2 in real time, verifying the delay performance of the digital signal interface of the power distribution terminal under test 2.

[0036] For example, the test master controller 11 sends remote control commands to the power distribution terminal under test 2 through the output terminal of the digital input / output subunit 13. The remote control commands are transmitted to the power distribution terminal under test 2 through the control signal interface, and the power distribution terminal under test 2 executes the corresponding actions. The remote signaling information such as the action status and equipment operation status of the power distribution terminal under test 2 is transmitted to the input terminal of the feedback digital input / output subunit 13 through the control signal interface. The input terminal of the digital input / output subunit 13 collects these remote signaling signals in real time and transmits them to the analog master station 12, realizing direct digital signal interaction between the power distribution terminal under test 2 and the power distribution test module 1.

[0037] The power distribution terminal commissioning system provided in this embodiment of the invention, by setting up an electrical connection socket module 3 including a control signal interface, and the control signal interface being electrically connected to the digital input / output subunit 13 and the power distribution terminal under test 2, transmits control commands to the power distribution terminal under test 2 and transmits sensing information to the digital input / output subunit 13. Through real-time interaction and transmission between the remote signaling and remote control signals of the power distribution terminal under test 2 and the power distribution terminal test module 1, the system captures the logical actions and response signals of the power distribution terminal under test 2 in real time, verifies the correctness of the digital interface connection and latency performance of the power distribution terminal under test 2, and improves the response sensitivity and reliability of the power distribution terminal under test 2. This avoids system commissioning failure due to hardware problems of the power distribution terminal under test 2, preventing the inability to timely troubleshoot and automated operation and maintenance of the power distribution terminal under test 2.

[0038] Optional, you can continue to refer to Figure 1 The signal measurement unit 20 includes an AC analog quantity generation subunit 21, a programmable matrix switch 22, and a verification subunit 23. The AC analog quantity generation subunit 21 is electrically connected to the test master control 11 and the programmable matrix switch 22, and is used to provide the programmable matrix switch 22 with an analog power grid AC input signal according to the control command. The programmable matrix switch 22 is communicatively connected to the test master control 11, the power distribution terminal under test 2, and the verification subunit 23, respectively, and is used to allocate and transmit the analog power grid AC input signal to the power distribution terminal under test 2 and the verification subunit 23 according to the control command. The verification subunit 23 is electrically connected to the test master control 11, and is used to verify and correct the analog power grid AC input signal to generate a reference signal, and transmit the reference signal to the test master control 11.

[0039] In this embodiment, the signal measurement unit 20 includes an AC analog quantity generation subunit 21, a programmable matrix switch 22, and a verification subunit 23. The AC analog quantity generation subunit 21 can be understood as a component that can simulate the real operating conditions of various AC electrical quantities in a power system, providing a standardized and controllable AC analog quantity input source for the power equipment under test. For example, the AC analog quantity generation subunit 21 includes, but is not limited to, an AC analog generator; this embodiment of the invention does not impose any limitations on this. The programmable matrix switch 22 can be understood as a modular switching device based on a matrix circuit topology, which realizes programmable switching and on / off between multiple input signals and multiple output signals through program instructions. It can realize flexible allocation of multi-channel signals and automatic testing of multiple interfaces of the equipment under test. The verification subunit 23 can be understood as a functional component with high measurement accuracy for precise measurement, metering calibration, and data traceability of various electrical quantities in a three-phase AC power system. For example, the verification subunit 23 includes, but is not limited to, a three-phase standard meter; this embodiment of the invention does not impose any limitations on this.

[0040] Specifically, the AC analog quantity generation subunit 21 is electrically connected to the test master controller 11 and the programmable matrix switch 22. The AC analog quantity generation subunit 21 provides analog grid AC input signals to the programmable matrix switch 22 according to control commands issued by the test master controller 11. Automatic switching and distribution of the analog grid AC input signals are achieved through the programmable matrix switch 22. The analog grid AC input signals include, but are not limited to, analog AC voltage input signals and analog AC current input signals; this embodiment of the invention does not impose such limitations. The programmable matrix switch 22 is communicatively connected to the test master controller 11, the power distribution terminal under test 2, and the verification subunit 23, respectively, and is used to distribute and transmit analog grid AC input signals to the power distribution terminal under test 2 and the verification subunit 23 according to control commands. The test master controller 11 is communicatively connected to the AC analog quantity generation subunit 21, the power distribution terminal under test 2, and the verification subunit 23 through the programmable matrix switch 22, enabling the testing process to be completed without disconnecting or replacing wires, completing all testing processes with a single connection. The verification subunit 23 is electrically connected to the test master control 11. The verification subunit 23 receives the simulated power grid AC input signal distributed by the programmable matrix switch 22, verifies and corrects the simulated power grid AC input signal, generates a reference signal from the verified and corrected simulated power grid AC input signal, and transmits the reference signal to the test master control 11.

[0041] For example, Figure 2 This is a schematic diagram of the circuit structure of a programmable matrix switch provided in an embodiment of the present invention, as shown below. Figure 2 As shown, the programmable matrix switch 22 connects the AC analog quantity generation subunit 21, the power distribution terminal under test 2, and the verification subunit 23. The programmable matrix switch 22 performs basic error tests of 4-phase AC voltage (A, B, C, and zero sequence) and 4-phase AC current (A, B, C, and zero sequence), AC power frequency power allowable excess test, and power distribution terminal power consumption measurement test according to the program control of the test master 11. No manual line switching is required during the test. The test master 11 controls the programmable matrix switch 22 to complete automatic switching and automatic testing.

[0042] The distribution terminal testing system provided in this embodiment of the invention receives control commands from the test master controller 11 via the AC analog signal generation subunit 21, generating a simulated AC input signal of the power grid that matches the power grid operating conditions. The programmable matrix switch 22 accurately distributes the simulated AC input signal to the distribution terminal under test 2 and the verification subunit 23 according to the control commands, realizing programmable switching and precise distribution of the simulated AC input signal. Through the programmable switching capability of the programmable matrix switch 22, fully automatic continuous testing of the distribution terminal 2 is completed without manual intervention, improving testing efficiency. This solves the problems of low testing efficiency and low testing accuracy caused by high wiring errors due to manual wiring in traditional testing, and also addresses the issues of poor test adaptability and inability to quickly switch between different operating conditions.

[0043] Figure 3 This is a schematic diagram of the structure of a power distribution terminal test module and a power grid simulation signal generation module provided in an embodiment of the present invention, as shown below. Figure 1 and Figure 3 As shown, the power distribution terminal commissioning system also includes a power grid simulation signal generation module 4, which is electrically connected to the programmable matrix switch 22. The power grid simulation signal generation module 4 is used to send simulated power grid signals to the programmable matrix switch 22. The programmable matrix switch 22 is used to allocate and transmit simulated power grid signals to the power distribution terminal 2 under test according to control commands.

[0044] In this embodiment, the power grid simulation signal generation module 4 can be understood as a signal generation component capable of providing simulated input signals consistent with the actual power grid characteristics to the power equipment such as the power distribution terminal 2 under test, thereby realizing power grid operating condition simulation. For example, the power grid simulation signal generation module 4 includes, but is not limited to, a standard source; this embodiment of the invention does not impose any limitations on this.

[0045] Specifically, the power grid simulation signal generation module 4 is electrically connected to the programmable matrix switch 22. The power grid simulation signal generation module 4 sends simulated power grid signals to the programmable matrix switch 22. The programmable matrix switch 22 allocates and transmits simulated power grid signals to the power distribution terminal under test 2 according to the control instructions of the test master, accurately restores the actual operating characteristics of the power grid, and monitors the operating status of the power distribution terminal under test in the actual working scenario of the power grid.

[0046] The power distribution terminal commissioning system provided in this embodiment of the invention, by setting up a power grid simulation signal generation module 4 electrically connected to a programmable matrix switch 22, sends simulated power grid signals to the programmable matrix switch 22. The programmable matrix switch 22 allocates and transmits simulated power grid signals to the power distribution terminal 2 under test according to control commands. This realizes the simulation testing of the power distribution terminal 2 under power grid operating conditions, making the test results more consistent with the actual application effect of the power distribution terminal 2 under test. At the same time, it achieves accurate and controllable allocation of simulated power grid signals without manual intervention, improving the efficiency of automated operation and maintenance. It solves the problems of input signals not matching the actual power grid characteristics, resulting in test results lacking reference value, and the problem of test errors caused by manual signal allocation.

[0047] Optional, you can continue to refer to Figure 1The power distribution terminal testing system also includes an electrical connection socket module 3, which includes a power connection interface (not shown in the figure) and an AC power acquisition interface (not shown in the figure). The power distribution terminal under test 2 includes a power supply terminal 24 and an AC power signal terminal 25. The power supply terminal 24 is electrically connected to the power connection interface, and the AC power signal terminal 25 is electrically connected to the AC power acquisition interface. The programmable matrix switch 22 is electrically connected to the power connection interface and the external power supply respectively, and is used to distribute the power supply signal of the external power supply according to the control command and transmit it to the power supply connection interface. The programmable matrix switch 22 is also electrically connected to the AC power acquisition interface, and is used to transmit the analog power grid AC input signal to the AC power acquisition interface.

[0048] In this embodiment, the electrical connection socket module 3 includes a power connection interface and an AC power acquisition interface. The power connection interface can be understood as an electrical interface used to realize the electrical connection between the external power supply and the internal power supply unit of the device, and the AC power acquisition interface can be understood as an electrical interface used to realize the acquisition and transmission of parameters such as AC voltage / current.

[0049] Specifically, one end of the power connection interface is used to electrically connect to the power supply terminal 24 of the power distribution terminal 2 under test, and the other end is electrically connected to the programmable matrix switch 22. The programmable matrix switch 22 is also electrically connected to an external power supply. The programmable matrix switch 22 distributes the power supply signal of the external power supply according to the control command and transmits it to the power connection interface, so that the external power supply supplies power to the power distribution terminal 2 under test and the power distribution terminal test module 1 respectively.

[0050] One end of the AC power acquisition interface is electrically connected to the AC signal terminal 25 of the power distribution terminal 2 under test. The AC signal terminal 25 can be understood as a port for receiving AC signals. The other end is electrically connected to the programmable matrix switch 22. The programmable matrix switch 22 distributes and switches the analog power grid AC input signal received from the AC analog quantity generation subunit 21, so that the analog power grid AC input signal is transmitted to the AC power acquisition interface, and then transmitted to the AC signal terminal 25 of the power distribution terminal 2 under test.

[0051] The power distribution terminal testing system provided in this embodiment of the invention features a power connection interface and an AC power acquisition interface in the electrical connection socket module 3. The power supply terminal 24 of the power distribution terminal 2 under test is electrically connected to the power connection interface, and the AC signal terminal 25 of the power distribution terminal 2 under test is electrically connected to the AC power acquisition interface. A programmable matrix switch 22 is electrically connected to both the power connection interface and the external power supply. Based on control commands, it distributes the power supply signal from the external power supply to the power connection interface, enabling the same external power supply to simultaneously power both the power distribution terminal 2 under test and the power distribution terminal test module 1, improving power supply efficiency while reducing circuit connection complexity. The programmable matrix switch 22 is also electrically connected to the AC power acquisition interface, transmitting the simulated grid AC input signal to the AC power acquisition interface, thus completing the transmission of the simulated grid AC input signal to the power distribution terminal 2 under test. Through the automatic switching and control of the programmable matrix switch 22, there is no electrical interconnection between the power supply line and the AC signal transmission line, ensuring no interference and guaranteeing power supply stability and the purity of the test signal. It solves both the cumbersome wiring problem caused by separating power supply and test signal access, and the signal interference problem that occurs when power supply and test signals are accessed simultaneously.

[0052] Optional, you can continue to refer to Figure 1 The test main control 11 is also used to acquire the operating electrical parameters of the power distribution terminal 2 under test through the communication interface (not shown in the figure), the communication sub-unit 14 and the analog master station 12, and to monitor the energy consumption of the power distribution terminal 2 under test according to the operating electrical parameters; the operating electrical parameters include voltage signal, current signal and power signal.

[0053] Specifically, the operating electrical parameters of the tested power distribution terminal 2 can be understood as the operating data output by the tested power distribution terminal 2 under different operating conditions, which can reflect the working status of the tested power distribution terminal 2. The operating electrical parameters of the tested power distribution terminal 2 include voltage signal, current signal and power signal.

[0054] During operation, the power distribution terminal under test 2 transmits its operating electrical parameters to the communication subunit 14 of the power distribution terminal test module 1 via the communication interface, and then transmits them to the test master control 11 via the communication subunit 14 and the simulation master station 12. Based on reference information, the test master control 11 constructs a multi-dimensional energy consumption monitoring matrix covering multiple states of the power distribution terminal under test, such as standby state, normal operation state, and peak operation state, through classification statistics and comparative analysis. It monitors the power consumption data of the power distribution terminal under test in real time and automatically completes the power consumption test of the power distribution terminal under test under various operating modes.

[0055] For example, the test controller 11, based on the power supply voltage of 220V returned by the verification subunit 23, collects the actual input current of the tested power distribution terminal 2 in standby mode as 0.022A in real time, and the actual power consumption is 4.84W. The test controller 11 compares the actual statistical data with the industry standard reference information (5W). The actual power consumption of the tested power distribution terminal 2 in standby mode is 4.84W, which is less than 5W. The test controller 11 determines that the power consumption of the tested power distribution terminal 2 in standby mode is qualified, and completes the standby power consumption test.

[0056] The power distribution terminal commissioning system provided in this embodiment of the invention allows the test master control 11 to acquire operating electrical parameters such as voltage, current, and power signals of the power distribution terminal 2 under test through a communication interface, communication subunit 14, and analog master station 12, and monitor the energy consumption of the power distribution terminal 2 under test based on these operating electrical parameters. During the fault commissioning process of the power distribution terminal 2 under test, the system monitors the power consumption data of the power distribution terminal 2 under test in real time, enabling power consumption testing of the power distribution terminal 2 under test in different operating modes. This avoids separate and repetitive testing of functional testing and power consumption detection, improves fault diagnosis efficiency, and solves the problem of incomplete fault diagnosis of the power distribution terminal 2 under test.

[0057] Optional, you can continue to refer to Figure 1 and Figure 3 The power distribution terminal commissioning system also includes a first operation port (not shown in the figure), and the power distribution terminal test module 1 also includes a first interaction unit 15, which is located at the first operation port. The first interaction unit 15 is used to respond to the start command to start the power distribution terminal test module 1, and output the working status information of the power distribution terminal test module 1 and the running status information of the power distribution terminal 2 under test.

[0058] In this embodiment, the power distribution terminal commissioning system further includes a first operation port, which can be understood as a space for setting up the operation of the power distribution terminal test module 1. The power distribution terminal test module 1 also includes a first interaction unit 15, which can be understood as integrated into the power distribution terminal test module 1, serving as an operation and display medium for operator input, test status viewing, and test parameter configuration between the operator and the test system. Exemplarily, the first interaction unit 15 includes, but is not limited to, the operation panel of the power distribution terminal test module 1; this embodiment of the invention does not impose limitations on this.

[0059] Specifically, the first interaction unit 15 is located at the first operation port. The first interaction unit 15 responds to the start command to start the power distribution terminal test module 1, and outputs the working status information of the power distribution terminal test module 1 and the operating status information of the power distribution terminal 2 under test. For example, the working status information of the power distribution terminal test module 1 includes, but is not limited to, information on normal operation and fault occurrence of the power distribution terminal test module 1. The operating status information of the power distribution terminal 2 under test includes, but is not limited to, the energy consumption data, fault location, and operation and maintenance result information of the power distribution terminal 2 under test. This embodiment of the invention does not impose any limitations on these aspects.

[0060] For example, after the power distribution terminal test module 1 and the power distribution terminal under test 2 are connected, the operator presses the start button of the first interaction unit 15, and the power distribution terminal test module 1 starts to automatically detect and maintain the power distribution terminal under test 2. The operating information and operating data of the power distribution terminal under test 2, as well as the working status information of the power distribution terminal test module 1 itself, are output through the display panel in the first interaction unit 15, so that the operator can obtain and view them in real time.

[0061] The power distribution terminal commissioning and testing system provided in this embodiment of the invention features a first operation port within the system and a first interaction unit 15 within the power distribution terminal testing module 1. The first interaction unit 15 responds to the operator's start command to activate the power distribution terminal testing module 1 and outputs the working status information of the power distribution terminal testing module 1 and the operating status information of the tested power distribution terminal 2. This configuration enhances the ease of operation of the power distribution terminal commissioning and testing system, enabling rapid operation, real-time status monitoring, and emergency intervention at the application site. It also improves the system's flexibility and commissioning efficiency, facilitates the tracing of abnormal data, and enables on-site problem investigation. This solves the problems of untimely fault detection and complex system usage.

[0062] You can continue to refer to this. Figure 3 The power distribution terminal commissioning system also includes a second operation port (not shown in the figure). The power grid simulation signal generation module 4 includes a second interaction unit 26, which is located at the second operation port. The second interaction unit 26 is used to respond to configuration commands to complete the configuration of the simulated power grid signal and output the working status information of the power grid simulation signal generation module 4.

[0063] In this embodiment, the power distribution terminal commissioning system further includes a second operation port, which can be understood as a space for setting up the operation of the power grid simulation signal generation module 4. The power grid simulation signal generation module 4 includes a second interaction unit 26, which can be understood as being integrated into the power grid simulation signal generation module 4, used to realize command input, information configuration, and test status viewing operations and display between the operator and the power grid simulation signal generation module 4. Exemplarily, the second interaction unit 26 includes, but is not limited to, the operation panel of the power grid simulation signal generation module 4; this embodiment of the invention does not impose limitations on this.

[0064] Specifically, the second interaction unit 26 is located at the second operation port. The second interaction unit 26 responds to configuration commands to complete the configuration of the simulated power grid signal and outputs the operating status information of the power grid simulation signal generation module 4. For example, the operating status information of the power grid simulation signal generation module 4 includes, but is not limited to, information on normal operation and information on faults of the power grid simulation signal generation module 4. This embodiment of the invention does not impose any limitations on this.

[0065] For example, after the power grid simulation signal generation module 4 and the distribution terminal test module 1 are connected, the operator presses the start button on the second interaction unit 26 and sets the simulated power grid signal. The power grid simulation signal generation module 4 transmits the configured simulated power grid signal to the distribution terminal test module 1, and at the same time outputs the working information of the power grid simulation signal generation module 4 through the display panel in the second interaction unit 26, so that the operator can obtain and view it in real time.

[0066] The power distribution terminal commissioning system provided in this embodiment of the invention includes a second operation port and a second interaction unit 26 within the power grid simulation signal generation module 4. The second interaction unit 26 is located at the second operation port. The second interaction unit 26 responds to configuration commands to complete the configuration of the simulated power grid signal and outputs the operating status information of the power grid simulation signal generation module 4. This configuration enables precise configuration of the simulated power grid signal, quickly responding to temporary needs for simulated power grid signals during on-site commissioning and improving the efficiency of simulated power grid signal configuration. Operators can view the operating status of the power grid simulation signal generation module 4 in real time, achieving visualization of the module's operating status monitoring and improving the efficiency of on-site fault diagnosis.

[0067] Optional, you can continue to refer to Figure 1 The power distribution terminal commissioning system also includes a mobile device (not shown in the figure); the power distribution terminal test module 1 is located inside the mobile device.

[0068] In this embodiment, the mobile device can be understood as an integrated commissioning and testing device that integrates the core functional modules required for power distribution terminal commissioning and testing, and possesses portability and mobility features. The mobile device includes, but is not limited to, manually movable or automatically driven maintenance and testing carts; this embodiment of the invention does not impose any restrictions on this.

[0069] Specifically, the power distribution terminal test module 1 is housed within the mobile device, as is the power grid simulation signal generation module 4. The power distribution terminal test module 1 and the power grid simulation signal generation module are electrically connected. This integrated design allows operators to complete the entire process of generating simulated power grid signals and testing the power distribution terminal 2 under test within the same space, eliminating the need to switch between devices and improving operational efficiency.

[0070] The movable device includes moving parts, such as casters, which can flexibly adjust the position of the power distribution terminal commissioning system at the power distribution terminal commissioning site.

[0071] The power distribution terminal commissioning system provided in this invention, by incorporating the power distribution terminal testing module 1 within a mobile device, allows for flexible relocation of the system, which was previously confined to fixed locations, thus overcoming limitations imposed by specific commissioning scenarios. The integrated design shortens preparation time for on-site commissioning and improves efficiency. It solves the problems of traditional commissioning solutions, such as inability to adapt to flexible location changes, low efficiency, and poor practicality.

[0072] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, combinations, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A power distribution terminal commissioning system, characterized in that, Includes a power distribution terminal testing module; The power distribution terminal test module includes a control communication unit and a signal measurement unit; The control and communication unit includes a test master control, an analog master station, and a digital input / output subunit; The test controller is used to send control commands; The simulated master station is connected to the test master control and the power distribution terminal under test. It is used to send scheduling signals to the power distribution terminal under test according to the control instructions, so as to control the power distribution terminal under test to operate according to the simulated power grid signals, and to transmit the operation information of the power distribution terminal under test to the test master control. The digital input / output subunit is connected to the test master controller and the power distribution terminal under test, and is used to transmit the control command to the power distribution terminal under test, and transmit the sensing information fed back by the power distribution terminal under test to the test master controller; The signal measurement unit is connected to the test master controller and is used to send reference information to the test master controller; The test master controller is used to determine the operating status of the power distribution terminal under test based on the operating information, the sensing information, and the reference information.

2. The power distribution terminal commissioning system according to claim 1, characterized in that, The power distribution terminal commissioning system also includes an electrical connection socket module, which includes a communication interface; The control communication unit further includes a communication subunit, which is communicatively connected to the analog master station and the communication interface, and the communication interface is communicatively connected to the power distribution terminal under test; the communication subunit is used to transmit the dispatch signal to the power distribution terminal under test and to transmit the operating electrical parameters to the analog master station.

3. The power distribution terminal commissioning system according to claim 1, characterized in that, The power distribution terminal commissioning system also includes an electrical connection socket module, which includes a control signal interface; The control signal interface is electrically connected to the digital input / output subunit and the power distribution terminal under test, and is used to transmit the control command to the power distribution terminal under test and transmit the sensing information to the digital input / output subunit.

4. The power distribution terminal commissioning system according to claim 1, characterized in that, The signal measurement unit includes an AC analog quantity generation subunit, a programmable matrix switch, and a verification subunit; The AC analog quantity generating subunit is electrically connected to the test main controller and the programmable matrix switch, and is used to provide the programmable matrix switch with an analog power grid AC input signal according to the control command. The programmable matrix switch is communicatively connected to the test master controller, the power distribution terminal under test, and the verification unit, respectively, and is used to allocate and transmit the simulated power grid AC input signal to the power distribution terminal under test and the verification subunit according to the control command; The verification subunit is electrically connected to the test master controller and is used to verify and correct the simulated power grid AC input signal to generate the reference signal, and transmit the reference signal to the test master controller.

5. The power distribution terminal commissioning system according to claim 4, characterized in that, The power distribution terminal commissioning system also includes a power grid simulation signal generation module, which is electrically connected to the programmable matrix switch. The power grid simulation signal generation module is used to send the simulated power grid signal to the programmable matrix switch; The programmable matrix switch is used to allocate and transmit the analog power grid signal to the power distribution terminal under test according to the control command.

6. The power distribution terminal commissioning system according to claim 4, characterized in that, The power distribution terminal commissioning system also includes an electrical connection socket module, which includes a power connection interface and an AC power acquisition interface; The power distribution terminal under test includes a power supply terminal and an AC signal terminal. The power supply terminal is electrically connected to the power connection interface, and the AC signal terminal is electrically connected to the AC power acquisition interface. The programmable matrix switch is electrically connected to the power connection interface and the external power supply respectively, and is used to distribute the power supply signal of the external power supply according to the control command and then transmit it to the source connection interface. The programmable matrix switch is also electrically connected to the AC power acquisition interface for transmitting the analog power grid AC input signal to the AC power acquisition interface.

7. The power distribution terminal commissioning system according to claim 2, characterized in that, The test master controller is also used to acquire the operating electrical parameters of the power distribution terminal under test through the communication interface, the communication sub-unit and the simulation master station, and monitor the energy consumption of the power distribution terminal under test according to the operating electrical parameters; the operating electrical parameters include the voltage signal, current signal and power signal.

8. The power distribution terminal commissioning system according to claim 1, characterized in that, The power distribution terminal commissioning and testing system further includes a first operation port, and the power distribution terminal testing module further includes a first interaction unit, which is located at the first operation port. The first interactive unit is used to respond to the start command to start the power distribution terminal test module, and output the working status information of the power distribution terminal test module and the running status information of the power distribution terminal under test.

9. The power distribution terminal commissioning system according to claim 5, characterized in that, The power distribution terminal commissioning system also includes a second operation port, and the power grid simulation signal generation module includes a second interaction unit, which is located at the second operation port. The second interactive unit is used to respond to configuration commands to complete the configuration of the simulated power grid signal and output the working status information of the power grid simulation signal generation module.

10. The power distribution terminal commissioning system according to claim 1, characterized in that, The power distribution terminal commissioning system also includes a mobile device; The power distribution terminal testing module is located inside the mobile device.

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