Wearable portable maintenance equipment and online test diagnosis maintenance method

Abstract

The invention is suitable for the technical field of equipment maintenance, and provides wearable portable maintenance equipment and an online test, diagnosis and maintenance method. The equipment comprises a wearable helmet and a handheld test and diagnosis unit, the wearable helmet comprises a main control circuit module; the handheld test diagnosis unit comprises a test platform and a test interface circuit; the test platform is respectively connected with the test interface circuit and the main control circuit module; the test platform is used for receiving test data and sending a control instruction; the test data is used for carrying out fault positioning on the tested electronic equipment; the control instruction is used for controlling the main control circuit module to collect audio and video signals of a maintenance site and sending the audio and video signals to an equipment maintenance information center, and is also used for controlling the main control circuit module to transmit the collected audio and video signals back to the test platform for storage and playback. According to the invention, the task of test diagnosis can be simplified, the test efficiency is improved, the guarantee cost is reduced, remote technical support is provided, and the problem of insufficient maintenance capability of equipment maintenance personnel is solved.

Description

Technical Field

[0001] This application belongs to the technical field of equipment maintenance, and particularly relates to a wearable portable maintenance device and an online test diagnosis and maintenance method. Background Art

[0002] The new equipment is a high-tech equipment integrating multiple disciplines such as electronics, computer, machinery, hydraulics, and control. It has advanced performance and complex structure. The new equipment has a high degree of intelligence. The internal electronic devices of the equipment are connected by a networked structure and are connected to the CAN bus network through the CAN bus interface circuit to complete the information transmission of the system unit and the online monitoring of the status. Therefore, it is difficult and heavy in terms of its maintenance support.

[0003] In recent years, with the increase in tasks such as some targeted training and field practice, the equipment needs to be used in the field for a long time, which puts higher requirements on the equipment maintenance ability of grass-roots equipment maintenance personnel. At present, there are problems such as insufficient maintenance ability for the emergency repair support of this new equipment by grass-roots users, serious dependence on the maintenance test experience of maintenance personnel, lack of supporting maintenance equipment, high maintenance costs, and lack of remote technical support. Summary of the Invention

[0004] To overcome the problems existing in the related technologies, the embodiments of this application provide a wearable portable maintenance device and an online test diagnosis and maintenance method, which can simplify the task volume of test diagnosis, improve the efficiency of test diagnosis, reduce the support cost, solve the problem of insufficient maintenance ability of equipment maintenance personnel, and provide remote technical support.

[0005] This application is implemented through the following technical solutions:

[0006] In a first aspect, the embodiments of this application provide a wearable portable maintenance device, including a wearable helmet and a handheld test diagnosis unit;

[0007] The wearable helmet includes a main control circuit module;

[0008] The handheld test diagnosis unit includes a test platform and a test interface circuit; the test platform is connected to the test interface circuit;

[0009] The main control circuit module is connected to the test platform through USB in a plug-and-play manner; the test platform is used to receive test data and send control instructions; the test data is used for fault location of the electronic device under test; the control instructions are used to control the main control circuit module to collect audio and video signals at the maintenance site and send the audio and video signals to the equipment maintenance information center, and are also used to control the main control circuit module to transmit the collected audio and video signals back to the test platform for storage and playback.

[0010] In one embodiment, the audio-video signal includes an audio signal and a video signal;

[0011] The wearable helmet further includes a 4G communication module, a camera, and a microphone; the 4G communication module, the camera, and the microphone are all connected to the main control circuit module;

[0012] The main control circuit module is further configured to control the camera to collect the video signal of the maintenance site and control the microphone to collect the audio signal of the maintenance site, and control the 4G communication module to transmit the video signal and the audio signal to the equipment maintenance information center.

[0013] In one embodiment, the test platform includes a host computer and an embedded digital test module; the test interface circuit includes an interface controller, a general test interface circuit, and a dedicated test interface circuit;

[0014] The host computer is connected to the interface controller through USB; the interface controller is respectively connected to the general test interface circuit and the dedicated test interface circuit;

[0015] The general test interface circuit is connected to the embedded digital test module; the embedded digital test module is used to output measurement data;

[0016] The dedicated test interface circuit is connected to the electronic device under test.

[0017] In one embodiment, the embedded digital test module includes a digital multimeter module and a digital oscilloscope module.

[0018] In one embodiment, the general test interface circuit is a reconfigurable test interface, including an FPGA and an analog matrix switch;

[0019] The FPGA is used to complete the logic control of the analog matrix switch and communicate with the interface controller; the FPGA includes a matrix switch interface control logic module and a serial communication logic module; the matrix switch interface control logic module is used to be connected to the analog matrix switch; the serial communication logic module is used to perform serial communication with the interface controller.

[0020] The analog matrix switch serves as the signal channel hub for automatic testing and is used to provide interfaces for the embedded digital test module and the electronic device under test.

[0021] In one embodiment, the dedicated test interface circuit includes a USB interface, a CAN interface, a peripheral circuit, and a power supply circuit;

[0022] The USB interface is used to connect the interface controller and the host computer; the CAN interface is used to connect the interface controller and the electronic device under test; the peripheral circuit includes a JTAG circuit and a crystal oscillator circuit; the JTAG circuit and the crystal oscillator circuit are respectively connected to the interface controller; the power supply circuit is used to connect to the power supply to provide a driving source for the dedicated test interface circuit.

[0023] In one embodiment, the wearable helmet further includes a lighting lamp.

[0024] In one embodiment, the test platform further includes a memory; the memory stores a comprehensive database;

[0025] The comprehensive database is used to store the analysis data of the comprehensive support software built in the host computer;

[0026] The memory is connected to the embedded digital test module; the comprehensive database is further used to store the fault detection data output by the embedded digital test module.

[0027] In a second aspect, an embodiment of the present application provides an online test diagnosis and repair method, which is implemented by using the wearable portable repair device as described in the first aspect, and includes:

[0028] Collect the online status information of each electronic device;

[0029] Analyze and diagnose the online status information of each electronic device, and locate the corresponding faulty electronic device according to the analysis and diagnosis results;

[0030] Use the test platform to perform an online test on the electrical signals of the faulty electronic device, and automatically generate a fault diagnosis guide and repair strategy support; the fault diagnosis guide is used to locate the fault to the field replaceable unit; the repair strategy support is used to query the device structure principle and operation and repair materials through the repair information comprehensive query module, and assist in completing the replacement and repair of the electronic device.

[0031] In one embodiment, before collecting the online status information of each electronic device, the online test diagnosis and repair method further includes: connecting to the CAN bus interface on the electronic device under test through the CAN interface in the dedicated test interface circuit;

[0032] Before using the test platform to perform an online test on the electrical signals of the faulty electronic device, the online test diagnosis and repair method further includes: connecting the general test interface to the test port of the faulty electronic device, and accessing the corresponding test signal through the configuration of the general test interface.

[0033] The beneficial effects of the embodiments of the present application compared with the prior art are:

[0034] In the embodiments of the present application, the wearable portable maintenance device adopts the structural form of "wearable helmet + handheld test and diagnosis unit". Based on the test interface circuit, the maintenance device is small in size, convenient to carry, and flexible in operation, solving the problem that it is difficult to use and operate in a narrow space at the use site. The online test and diagnosis maintenance method makes full use of the information transmission characteristics of new electronic devices, uses the wearable portable maintenance device to read the status information of new electronic devices, preliminarily locates the faulty electronic devices, then conducts online testing and fault location on the located faulty electronic devices, can consult the device technical materials provided by the maintenance device, and with the assistance of audio and video in the device maintenance information center, completes the on-site replaceable unit maintenance, thus greatly simplifying the task volume of test and diagnosis, improving the efficiency of test and diagnosis, reducing the guarantee cost, and solving the problem of insufficient maintenance ability of equipment maintenance personnel.

[0035] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit this specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0037] Figure 1 It is a schematic diagram of the application scenario of the wearable portable maintenance device provided by an embodiment of the present application;

[0038] Figure 2 It is a schematic diagram of the structure of the wearable portable maintenance device provided by an embodiment of the present application;

[0039] Figure 3 It is a schematic diagram of the structure of the general test interface circuit provided by an embodiment of the present application;

[0040] Figure 4 It is a schematic diagram of the structure of the dedicated test interface circuit provided by an embodiment of the present application;

[0041] Figure 5 It is a schematic diagram of the application mode of the wearable portable maintenance device provided by an embodiment of the present application;

[0042] Figure 6 It is a schematic diagram of the flow of the online test and diagnosis maintenance method provided by an embodiment of the present application;

[0043] Figure 7 It is a schematic diagram of the structure of the controller provided by an embodiment of the present application. Detailed Implementation Manner

[0044] In the following description, for the purpose of illustration rather than limitation, specific details such as specific system architectures, technologies, etc. are presented to provide a thorough understanding of the embodiments of the present application. However, those skilled in the art should clearly understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present application.

[0045] It should be understood that when used in the specification and appended claims of the present application, the term "comprising" indicates the presence of the described features, wholes, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations.

[0046] It should also be understood that the term "and / or" used in the specification and appended claims of the present application refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0047] As used in the specification and appended claims of the present application, the term "if" can be interpreted as "when", "once", "in response to determining", or "in response to detecting" depending on the context. Similarly, the phrase "if determined" or "if detecting [the described condition or event]" can be interpreted as meaning "once determined", "in response to determining", "once detecting [the described condition or event]", or "in response to detecting [the described condition or event]" depending on the context.

[0048] In addition, in the description of the specification and appended claims of the present application, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0049] The reference to "one embodiment" or "some embodiments" etc. described in the specification of the present application means that a specific feature, structure, or characteristic described in connection with that embodiment is included in one or more embodiments of the present application. Thus, statements such as "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments", etc. that appear in different places in this specification do not necessarily all refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in another way. The terms "comprising", "including", "having", and their variants all mean "including but not limited to", unless otherwise specifically emphasized in another way.

[0050] In order to solve the problems of insufficient maintenance capacity of grassroots users for the emergency repair of new equipment, heavy reliance on maintenance personnel's maintenance and testing experience, lack of supporting maintenance equipment, high maintenance costs, and lack of remote technical support, the following maintenance guarantee conditions need to be provided to maintenance personnel during maintenance work: (1) Online testing and fault diagnosis at the equipment maintenance site. Since the space in the cabin of the new equipment is small and large-scale detection and diagnosis equipment is difficult to use and operate, it is necessary to use miniaturized and portable maintenance equipment to perform online testing and fault diagnosis on faulty electronic equipment, so that maintenance personnel can obtain maintenance equipment support to complete more complex maintenance tasks, rather than relying on simple maintenance experience. (2) Maintenance technical data query. Digitize and digitize the technical data in the maintenance process, and provide maintenance personnel with visual and diversified information to assist maintenance during the maintenance process, so that they do not need to carry and read thick technical data during the maintenance process, thereby improving maintenance efficiency and shortening maintenance time. (3) Remote maintenance technical support. In the face of difficult problems that are difficult for on-site maintenance personnel to solve, the on-site audio and video can be transmitted to the remote maintenance resource center through the communication network to obtain remote maintenance support.

[0051] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0052] Figure 1 is a schematic diagram of an application scenario of a wearable portable maintenance device provided in an embodiment of the present application, with reference to Figure 1 Under field conditions, by adopting the structural form of "wearable helmet 100 + handheld test and diagnosis unit 200", and designing a universal interface based on reconfigurable technology, the maintenance equipment is small in size, easy to carry, and flexible in operation, which solves the problem that the maintenance equipment is difficult to use and operate in a small space at the site of use. Taking full advantage of the information transmission characteristics of the new electronic equipment 300, a two-step online test diagnosis and maintenance strategy is adopted: using a dedicated test interface to read the status information of each electronic device in the CAN bus network of the new equipment, preliminarily locate the faulty electronic equipment, and then using the universal interface to perform online testing and board-level fault location on the located faulty electronic equipment, and the equipment technical information provided by the maintenance equipment can be consulted to complete the field replaceable unit maintenance. This greatly simplifies the task volume of test diagnosis, improves the efficiency of test diagnosis, reduces the guarantee cost, and solves the problem of insufficient maintenance capacity of equipment maintenance personnel. For difficult problems that cannot be solved by on-site maintenance, maintenance personnel can also obtain remote technical support from the equipment maintenance center 400 through the maintenance equipment, which solves the problem of insufficient maintenance capacity of equipment maintenance personnel and meets the above-mentioned maintenance guarantee conditions provided to maintenance personnel under field conditions.

[0053] Figure 2 is a schematic diagram of the structure of a wearable portable maintenance device provided in an embodiment of the present application, referring to Figure 2, the details of the wearable portable maintenance device are as follows:

[0054] A wearable portable maintenance device, which can be used under field conditions, includes a wearable helmet and a handheld test and diagnosis unit.

[0055] The wearable helmet includes a main control circuit module.

[0056] Exemplarily, the wearable helmet is integrally provided with a helmet structure body, and the main control circuit module is integrated inside the helmet structure body.

[0057] The handheld test and diagnosis unit includes a test platform and a test interface circuit; the test platform is connected to the test interface circuit.

[0058] The main control circuit module is connected to the test platform in a plug-and-play manner through USB; the test platform is used to receive test data through the test interface circuit and send control instructions to the main control circuit module; the test data is used to locate faults of the electronic device under test (i.e., the new electronic device); the control instructions are used to control the main control circuit module to collect audio and video signals at the maintenance site and send the audio and video signals to the device maintenance information center, and are also used to control the main control circuit module to transmit the collected audio and video signals back to the test platform for storage and playback.

[0059] Exemplarily, the handheld test and diagnosis unit can be in the form of a handheld all-in-one computer, and the handheld test and diagnosis unit is connected to the wearable helmet in a plug-and-play manner through USB, then the handheld test and diagnosis unit can control the helmet part to complete the collection and wireless transmission of audio and video signals, and can also control the collected audio and video signals to be transmitted back to the all-in-one computer for storage and playback.

[0060] The wearable portable maintenance device of this embodiment adopts the structural form of "wearable helmet + handheld test and diagnosis unit", and based on the test interface circuit, makes the maintenance device small in size, convenient to carry, and flexible in operation, solving the problem that it is difficult to use and operate the maintenance device in a narrow space at the use site. The online test and diagnosis maintenance method makes full use of the information transmission characteristics of the new electronic device, uses the wearable portable maintenance device to read the status information of the new electronic device, preliminarily locates the faulty electronic device, then conducts online testing and fault location on the located faulty electronic device, can consult the device technical materials provided by the maintenance device, and with the assistance of the audio and video of the device maintenance information center, completes the maintenance of the replaceable unit on site, thus greatly simplifying the task volume of test and diagnosis, improving the efficiency of test and diagnosis, reducing the guarantee cost, and solving the problem of insufficient maintenance ability of equipment maintenance personnel.

[0061] In one embodiment, the wearable helmet is an embedded system with the main control circuit module as the core. The wearable helmet further includes a 4G communication module, a camera, and a microphone. The 4G communication module, the camera, and the microphone are all connected to the main control circuit module.

[0062] The model of the main control circuit module can be selected as the ARM Cortex A7 CPU V3S chip.

[0063] The main control circuit module is also used to control the camera to collect video signals at the maintenance site and control the microphone to collect audio signals at the maintenance site, and control the 4G communication module to transmit the video signals and audio signals to the equipment maintenance information center. The audio-video signals include audio signals and video signals.

[0064] Exemplarily, the wearable helmet further includes a lighting lamp to provide light source for the camera and can be tested at night.

[0065] Exemplarily, the wearable helmet uses embedded technology, 4G wireless network communication technology, and wearable technology in its design. The audio-video acquisition and transmission hardware is fixed on the helmet, which is convenient to operate in a narrow space, realizing its portability and flexibility. At the same time, it greatly liberates the hands of maintenance staff, enabling the maintenance personnel to not only get in touch with the outside world but also pay attention to the situation at the maintenance site, and the hands do not delay the maintenance work.

[0066] In one embodiment, the handheld test and diagnosis unit forms a virtual instrument test system with the all-in-one tablet computer as the core. The test platform includes a host computer and an embedded digital test module. The test interface circuit includes an interface controller, a general test interface circuit, and a special test interface circuit.

[0067] Exemplarily, the all-in-one tablet computer can be selected as a PXI (PCI extensions for Instrumentation) ruggedized all-in-one tablet computer, which consists of a test platform based on the PXI bus and a test interface circuit. The test interface circuit adopts a combination of "special + general" and includes a reconfigurable general test interface circuit based on FPGA (Field Programmable Gate Array) and a special test interface circuit based on the CAN network.

[0068] The host computer is connected to the interface controller through USB; the interface controller is respectively connected to the general test interface circuit and the special test interface circuit.

[0069] The general test interface circuit is connected to the embedded digital test module; the embedded digital test module is used to output measurement data; the dedicated test interface circuit is connected to the electronic device under test. Among them, the embedded digital test module includes a digital multimeter module and a digital oscilloscope module.

[0070] Exemplarily, the test platform based on the PXI bus takes the PXI ruggedized all-in-one computer of model PXI-A3231 as the core, and is equipped with the PXI-4065 digital multimeter module and the PXI-5114 digital oscilloscope module of NI Company. These two embedded digital test modules can meet the test requirements of general electronic device signals in terms of testable signal bandwidth and amplitude, and have the functions of overvoltage protection and alarm for test signals, and can conveniently measure, display, and store the waveforms and parameters of the signals under test.

[0071] In one embodiment, the functions and structures of the dedicated test interface circuit and the general test interface circuit are introduced.

[0072] Exemplarily, the general test interface circuit is a reconfigurable test interface, including an FPGA and an analog matrix switch, as Figure 3 shown.

[0073] The FPGA is used to complete the logic control of the analog matrix switch and communicate with the interface controller; the FPGA includes a matrix switch interface control logic module and a serial communication logic module; the matrix switch interface control logic module is used to be connected to the analog matrix switch; the serial communication logic module is used to perform serial communication with the interface controller. The analog matrix switch serves as the signal channel hub for automatic testing, and is used to provide interfaces for the embedded digital test module and the electronic device under test, so that the general test interface circuit is connected to the electronic device under test.

[0074] Among them, the model of the interface controller can be selected as STM32F105RBT6, and the serial communication logic module communicating with the interface controller can be designed and implemented using the Verilog HDL hardware description language. The model of the analog matrix switch can be selected as the MT8816 array. The MT8816 array provides an interface between the test resources and the test connection points of the electronic device under test, realizes the on-off and routing of the signal path, and is the signal channel hub for automatic testing.

[0075] Exemplarily, the general test interface circuit further includes a peripheral system circuit. The peripheral system circuit can include circuits such as crystal oscillators, clocks, and resets, so that the general test interface circuit constitutes a single-chip microcomputer system.

[0076] The universal test interface circuit is a reconfigurable universal test interface based on FPGA. Due to the different electronic devices under test, the number of test port inputs is large, and the test resources are limited. At the same time, when designing the test interface, the test interface is required to be small in size, highly integrated, and flexible in configuration. Therefore, the static reconfigurable technology based on FPGA is used to design and implement the reconfigurable universal test interface. Without changing the hardware connection, any terminal to be tested of the electronic device under test can be flexibly selected by modifying the configuration file, and the output can be measured and displayed on the digital oscilloscope and multimeter, which improves the flexibility and versatility of the test interface.

[0077] Exemplarily, the dedicated test interface circuit includes a USB interface, a CAN interface, a peripheral circuit and a power supply circuit, such as Figure 4 shown.

[0078] The USB interface is used to connect the interface controller and the host computer; the CAN interface is used to connect the interface controller and the CAN network of the electronic device under test; the peripheral circuit includes a JTAG (Joint Test Action Group) circuit and a crystal oscillator circuit; the JTAG circuit and the crystal oscillator circuit are respectively connected to the interface controller; the JTAG circuit is used for boundary scan testing of the interface controller and online programming of the programmable chip, and the crystal oscillator circuit is used to provide a stable clock signal for the interface controller; the power supply circuit is used to connect to the power supply and provide a driving source for the interface of the dedicated test interface circuit.

[0079] Exemplarily, the interface controller is mainly responsible for data transmission and protocol conversion. The interface controller integrates a CAN bus controller, so only a CAN transceiver is needed to realize the conversion of the logic signal level. The interface circuit converts the CAN bus data into a unified data format. The interface controller is used as a USB bus connection between the lower computer and the upper computer PXI-A3231 flat-panel machine. The USB to serial port chip CH340 can realize data transmission between the upper computer USB port and the lower computer STM32F105RCT6 serial port. The ARM processor USB bus sends the CAN message information to the upper computer PXI-A3231 flat-panel machine.

[0080] In one embodiment, the test platform further comprises a memory; the memory stores a comprehensive database, such as Figure 5 The comprehensive database is used to store the analysis data of the comprehensive support software built into the host computer.

[0081] The memory is connected to the embedded digital test module; the integrated database is also used to store the fault detection data output by the embedded digital test module.

[0082] Exemplarily, integrated support software is built into the upper computer of the test platform. The integrated support software includes device online status information analysis and diagnosis software, embedded instrument test software, automatic generation software for diagnostic and repair strategies, comprehensive query software for repair information, remote technical support software, etc. The integrated database is provided with a user database, an IETM (Interactive Electronic Technical Manual) database, an expert knowledge base, a fault detection database, etc. Through the software and various databases, functions such as on-site test diagnosis, repair tasks, and operation process guidance of new electronic devices are conveniently realized.

[0083] The wearable portable repair device in this embodiment adopts the structural form of "wearable helmet + handheld test and diagnosis unit". Based on the test interface circuit, the repair device is small in size, convenient to carry, and flexible in operation, solving the problem that it is difficult to use and operate in a narrow space at the use site. The online test diagnosis and repair method makes full use of the information transmission characteristics of new electronic devices, reads the status information of each electronic device in the CAN bus network of the new device through the dedicated test interface of the wearable portable repair device, preliminarily locates the faulty electronic device, and then uses the general test interface to conduct an online test and fault location on the located faulty electronic device. It can also consult the device technical materials provided by the repair device, and with the assistance of audio and video in the device repair information center, complete the repair of the field replaceable unit on-site, thus greatly simplifying the task volume of test diagnosis, improving the efficiency of test diagnosis, reducing the support cost, and solving the problem of insufficient repair capabilities of equipment maintenance personnel.

[0084] In one embodiment, refer to Figure 6 , secondly, the embodiment of the present application provides an online test diagnosis and repair method, which is implemented by using the wearable portable repair device as described in the first aspect, and includes:

[0085] Step 201, collect the online status information of each electronic device.

[0086] Step 202, analyze and diagnose the online status information of each electronic device, and locate the corresponding faulty electronic device according to the analysis and diagnosis results.

[0087] Step 203, use the test platform to conduct an online test on the electrical signals of the faulty electronic device, and automatically generate fault diagnosis guidance and repair strategy support.

[0088] Among them, the fault diagnosis guidance is used to locate the fault to the field replaceable unit; the repair strategy support is used to query the device structure principle and operation and repair materials through the comprehensive query module of the repair information, and assist in completing the replacement and repair of the electronic device.

[0089] Exemplarily, before collecting the online status information of each electronic device, the online test diagnosis and repair method further includes: connecting to the CAN bus interface on the electronic device under test through the CAN interface in the dedicated test interface circuit.

[0090] Before performing an online test on the electrical signals of the faulty electronic device using the test platform, the online test diagnosis and repair method further includes: connecting the general test interface to the test port of the faulty electronic device, and accessing the corresponding test signals through the configuration of the general test interface.

[0091] The online test diagnosis and repair method based on the wearable portable repair device proposed by the present invention makes full use of the information transmission characteristics of the new device, does not require an additional hardware system, can locate the faulty device using a simple interface circuit and online diagnosis software, reduces the volume of the entire repair device, and increases portability and flexibility. The reconfigurable test interface technology is adopted to improve the flexibility of interface signal configuration and achieve a high degree of integration of the interface. The functions of on-site test diagnosis, repair tasks, and operation process guidance of the new device are conveniently implemented through software.

[0092] For difficult problems that cannot be solved on-site during maintenance, the on-site audio and video image information is collected through the wearable helmet and sent to the device maintenance information center through the wireless transmission module to obtain remote technical support.

[0093] The embodiment of the present application also provides a controller. Refer to Figure 7 , the controller 700 may include: at least one processor 710 and a memory 720. A computer program that can run on at least one processor 710 is stored in the memory 720. When the processor 710 executes the computer program, the steps in any of the above method embodiments are implemented.

[0094] Exemplarily, the computer program can be divided into one or more modules / units. One or more modules / units are stored in the memory 720 and executed by the processor 710 to complete the present application. One or more modules / units may be a series of computer program segments capable of performing specific functions, and these program segments are used to describe the execution process of the computer program in the controller 700.

[0095] Those skilled in the art can understand that Figure 7 it is only an example of the controller and does not constitute a limitation on the controller. It may include more or fewer components than shown in the figure, or combine some components, or different components, such as input / output devices, network access devices, buses, etc.

[0096] The processor 710 may be a Central Processing Unit (CPU), or may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate Arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0097] The memory 720 may be an internal storage unit of the controller or an external storage device of the controller, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) card, a Flash Card, etc. The memory 720 is used to store computer programs and other programs and data required for the online test diagnosis and repair method. The memory 720 may also be used to temporarily store data that has been output or is to be output.

[0098] The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. For the sake of convenience of representation, the buses in the drawings of this application are not limited to only one bus or one type of bus.

[0099] The online test diagnosis and repair method provided by the embodiments of this application can be applied to controllers such as computers, tablet computers, laptop computers, netbooks, personal digital assistants (PDAs), etc. The embodiments of this application do not impose any restrictions on the specific types of the controllers.

[0100] It should be understood that the magnitudes of the sequence numbers of the steps in the above embodiments do not mean the order of execution is prior or posterior. The order of execution of each process should be determined according to its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0101] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included within the protection scope of the present application.

Claims

1. A wearable portable maintenance device, characterized in that: Includes a wearable helmet and a handheld test diagnostic unit; The wearable helmet includes a main control circuit module; The handheld test diagnostic unit comprises a test platform and a test interface circuit; the test platform is connected to the test interface circuit; The main control circuit module is connected to the test platform via USB in a plug-and-play manner; the test platform is used to receive test data and send control instructions; the test data is used to locate faults in the electronic equipment under test; the control instructions are used to control the main control circuit module to collect audio and video signals at the maintenance site and send audio and video signals to the equipment maintenance information center, and are also used to control the main control circuit module to transmit the collected audio and video signals back to the test platform for storage and playback.

2. The wearable portable maintenance device according to claim 1, characterized in that: The audio and video signal includes an audio signal and a video signal; The wearable helmet further includes a 4G communication module, a camera and a microphone; the 4G communication module, the camera and the microphone are all connected to the main control circuit module; The main control circuit module is also used to control the camera to collect video signals at the maintenance site and control the microphone to collect audio signals at the maintenance site, and control the 4G communication module to transmit the video signal and the audio signal to the equipment maintenance information center.

3. The wearable portable maintenance device according to claim 1, characterized in that: The test platform includes a host computer and an embedded digital test module; the test interface circuit includes an interface controller, a general test interface circuit and a special test interface circuit; The host computer is connected to the interface controller via USB; the interface controller is connected to the universal test interface circuit and the dedicated test interface circuit respectively; The universal test interface circuit is connected to the embedded digital test module; the embedded digital test module is used to output measurement data; The dedicated test interface circuit is connected to the electronic device under test.

4. The wearable portable maintenance device according to claim 3, characterized in that: The embedded digital test module includes a digital multimeter module and a digital oscilloscope module.

5. The wearable portable maintenance device according to claim 3, characterized in that: The universal test interface circuit is a reconfigurable test interface, including an FPGA and an analog matrix switch; The FPGA is used to complete the logic control of the analog matrix switch and communicate with the interface controller; the FPGA includes a matrix switch interface control logic module and a serial communication logic module; The matrix switch interface control logic module is used to connect to the analog matrix switch; the serial communication logic module is used to perform serial communication with the interface controller; The analog matrix switch serves as a signal channel hub for automatic testing and is used to provide an interface between the embedded digital test module and the electronic device under test.

6. The wearable portable maintenance device according to claim 3, characterized in that: The dedicated test interface circuit includes a USB interface, a CAN interface, a peripheral circuit and a power supply circuit; The USB interface is used to connect the interface controller and the host computer; the CAN interface is used to connect the interface controller and the electronic device under test; the peripheral circuit includes a JTAG circuit and a crystal oscillator circuit; the JTAG circuit and the crystal oscillator circuit are respectively connected to the interface controller; the power supply circuit is used to connect to a power supply to provide a driving source for the dedicated test interface circuit.

7. The wearable portable maintenance device according to claim 1, characterized in that: The wearable helmet also includes a lighting lamp.

8. The wearable portable maintenance device according to claim 3, characterized in that: The test platform also includes a memory; the memory stores a comprehensive database; The comprehensive database is used to store the analysis data of the comprehensive support software built into the host computer; The memory is connected to the embedded digital test module; the integrated database is also used to store the fault detection data output by the embedded digital test module.

9. An online testing, diagnosis and maintenance method, characterized in that: The wearable portable maintenance device according to any one of claims 1 to 8 is used to implement the method, comprising: Collecting online status information of each electronic device; Analyze and diagnose the online status information of each electronic device, and locate the corresponding faulty electronic device according to the results of the analysis and diagnosis; The test platform is used to perform online testing on the electrical signals of the faulty electronic device, and fault diagnosis guidance and maintenance strategy support are automatically generated; the fault diagnosis guidance is used to locate the fault to the field replaceable unit; the maintenance strategy support is used to query the equipment structure principle and operation and maintenance information through the comprehensive maintenance information query module, so as to assist in the replacement and maintenance of the electronic equipment.

10. The online test diagnosis and maintenance method according to claim 9, characterized in that: Before collecting the online status information of each electronic device, the online test diagnosis and maintenance method further includes: connecting the CAN bus interface on the electronic device under test through the CAN interface in the dedicated test interface circuit; Before using the test platform to perform online testing on the electrical signal of the faulty electronic device, the online test diagnosis and maintenance method also includes: connecting a universal test interface to the test port of the faulty electronic device, and accessing a corresponding test signal through the configuration of the universal test interface.

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