A sensor remote fault diagnosis system and diagnosis method

Abstract

This invention provides a remote fault diagnosis system and method for sensors, relating to the field of sensor diagnostic technology. It includes: a manufacturer's equipment management platform remotely connected to the sensor; the sensor integrates a product self-test module, which monitors the sensor's operating parameters, generates corresponding fault codes when these parameters are abnormal, and sends these fault codes to the manufacturer's equipment management platform in the form of communication protocol codes for remote fault diagnosis. The beneficial effect is that it enables technical engineers to accurately identify the fault type of the sensor in the field, thereby guiding customers to troubleshoot the fault or resolving the fault by remotely adjusting the parameters of the faulty sensor. This significantly reduces the frequency of business trips and sensor return for repair, saving time and effort while effectively reducing after-sales costs.

Description

Technical Field

[0001] This invention relates to the field of sensor diagnostic technology, and in particular to a remote fault diagnosis system and method for sensors. Background Technology

[0002] With the development of sensors and related hardware and software technologies such as data storage, energy storage, new materials, and network infrastructure, as well as the continuous decline in costs, sensors are increasingly being applied to all areas of social development and human life.

[0003] However, current sensor products have the following technical problems:

[0004] 1. Because field sensor products typically operate in an "information silo" manner, their operating parameters are stored in the product's internal Flash memory, which can only be read on-site through a dedicated debugging interface and cannot be obtained remotely.

[0005] 2. When sensor products malfunction, the lack of corresponding fault indications makes it difficult for customers to determine the fault type. The manufacturer's technical engineers must provide telephone guidance for basic troubleshooting, or the engineers may travel to the site to assess the fault based on experience and by testing relevant circuit signals of the sensor product, or the product may need to be returned to the factory for testing to determine the fault type. Furthermore, when sensor products experience parameter malfunctions, customers cannot resolve the issue on-site and must return them for rework. Since sensor products are used in real-world applications across the country and even globally, both on-site travel and factory repair are extremely inconvenient, time-consuming, and labor-intensive. Summary of the Invention

[0006] To address the problems existing in the prior art, the present invention provides a remote fault diagnosis system for sensors, including a manufacturer's equipment management platform remotely connected to the sensor; the sensor integrates a product self-test module, which is used to monitor the operating parameters of the sensor, generate corresponding fault codes when the operating parameters are abnormal, and send the fault codes to the manufacturer's equipment management platform in the form of communication protocol codes for remote fault diagnosis.

[0007] Preferably, the product self-test module includes:

[0008] The fault code generation unit is used to monitor the operating parameters of at least one electronic component built into the sensor, and generate the corresponding fault code when the operating parameters are determined to be abnormal.

[0009] A protocol code generation unit, connected to the fault code generation unit, is used to write the fault code into the fault identifier bit of the communication protocol according to a pre-set communication protocol, so as to generate the communication protocol code.

[0010] Preferably, the fault code generation unit includes:

[0011] The storage sub-unit is used to store a pre-configured table of correspondence between fault categories and fault codes;

[0012] The self-testing subunit is used to monitor the operating parameters of each electronic component built into the sensor, and when the operating parameters are found to be abnormal, to process and obtain the fault category corresponding to the operating parameters.

[0013] A generation subunit is formed, which is connected to the storage subunit and the self-test subunit respectively, and is used to match the corresponding fault code in the corresponding relationship table according to the fault category.

[0014] Preferably, in the communication protocol, each data bit includes a product address bit, a function identifier bit, a sensor data byte count identifier bit, a sensor data bit, the preset fault identifier bit, and a check bit.

[0015] Preferably, the sensor also integrates a long-distance wireless transmission module, which is connected to the product self-test module to establish a remote connection with the manufacturer's equipment management platform, so as to send the fault code to the manufacturer's equipment management platform in the form of the communication protocol code.

[0016] Preferably, the sensor also integrates a short-range wireless transmission module, which is connected to the product self-test module. This module is used to establish a wireless connection with a mobile terminal at the sensor's installation site and to establish a remote connection with the manufacturer's equipment management platform via the mobile terminal, so as to send the fault code to the manufacturer's equipment management platform in the form of the communication protocol code.

[0017] Preferably, the short-range wireless transmission module is Bluetooth, and the name of the Bluetooth device is the unique identification code of the sensor in which it is located;

[0018] The sensor has a product QR code or barcode on its housing. When a user scans the product QR code or barcode with the mobile terminal, the user obtains the unique identification code stored in the product QR code or barcode, and then establishes a wireless connection with the sensor based on the unique identification code.

[0019] Preferably, the sensor also integrates a memory connected to the product self-test module for caching the communication protocol code containing the fault code;

[0020] The mobile terminal is also used to allow the user to access the memory after establishing a connection with the short-range wireless transmission module of the sensor.

[0021] Preferably, the manufacturer's equipment management platform provides a human-machine interface for manufacturer technicians to view the fault codes for remote fault diagnosis guidance, and for manufacturer technicians to remotely adjust the parameters of the sensors.

[0022] The present invention also provides a remote fault diagnosis method for sensors, applied to the aforementioned remote fault diagnosis system for sensors, the remote fault diagnosis method for sensors comprising:

[0023] Step S1: The remote fault diagnosis system of the sensor monitors the operating parameters of the sensor and performs self-diagnosis. When the operating parameters are abnormal, a corresponding fault code is generated, and the communication protocol code is generated.

[0024] Step S2: The remote fault diagnosis system for sensors sends the communication protocol code to the manufacturer's equipment management platform for remote fault diagnosis.

[0025] Preferably, the operating parameters are the operating parameters of at least one electronic component built into the sensor. When the operating parameters are abnormal, the sensor remote fault diagnosis system writes the fault code into the fault identifier bit of the communication protocol according to a pre-set communication protocol to generate the communication protocol code. 。

[0026] The above technical solution has the following advantages or beneficial effects:

[0027] 1) By configuring a product self-test module for the sensor, the operating parameters of the sensor can be obtained in a timely manner, and when the operating parameters are abnormal, the communication protocol code containing the fault code is sent to the manufacturer's equipment management platform. This enables technical engineers to accurately identify the fault type of the sensor on site, and then guide customers to troubleshoot the fault or to resolve the fault by remotely adjusting the parameters of the faulty sensor. This greatly reduces the frequency of business trips and sensor return to the factory for repair, saving time and effort while effectively saving after-sales costs.

[0028] 2) Sending fault codes in the form of communication protocol codes only requires adding a fault flag bit to the existing sensor communication protocol, which is simple to implement and does not require additional costs;

[0029] 3) By providing a long-range wireless transmission module, the sensor can directly establish a remote connection with the manufacturer's equipment management platform, thereby sending fault codes in a timely manner;

[0030] 4) By providing a short-range wireless transmission module, the sensor can establish a wireless connection with the user's mobile terminal, allowing the user to view fault codes. Furthermore, when the long-range wireless transmission module fails, the sensor can also establish a remote connection with the manufacturer's equipment management platform through the user's mobile terminal, effectively improving product reliability. Attached Figure Description

[0031] Figure 1 A schematic diagram of the structure of a remote fault diagnosis system for sensors is shown in a preferred embodiment of the present invention.

[0032] Figure 2 This is a flowchart illustrating a remote fault diagnosis method for sensors, as described in a preferred embodiment of the present invention. Detailed Implementation

[0033] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The present invention is not limited to this embodiment; other embodiments that conform to the spirit of the present invention may also fall within the scope of the present invention.

[0034] In a preferred embodiment of the present invention, based on the above-mentioned problems existing in the prior art, a remote fault diagnosis system for sensors is provided, such as... Figure 1 As shown, it includes a manufacturer's equipment management platform 200 that is remotely connected to the sensor 100; the sensor 100 integrates a product self-test module 1, which is used to monitor the operating parameters of the sensor, generate corresponding fault codes when the operating parameters are abnormal, and send the fault codes to the manufacturer's equipment management platform 200 in the form of communication protocol codes for remote fault diagnosis.

[0035] Specifically, in this embodiment, the manufacturer's equipment management platform 200 is preferably mounted on the manufacturer's back-end server, and the product self-test module 1 is preferably running in the original processor of the sensor 100. The type of the sensor 100 is not limited here, including but not limited to tilt sensors, long angle sensors, pull rope sensors, and pressure sensors.

[0036] Among them, the self-test function of the above-mentioned product self-test module 1 can have multiple triggering methods based on the application scenario requirements of different sensors. Taking sensor 100 as an example:

[0037] If sensor 100 is installed on one of the support columns of a building to monitor the change in the tilt angle of the support column over a long period, and the real-time requirement for the tilt angle data is not high, in practical applications, sensor 100 may be configured to collect tilt angle data every 24 hours or longer. In this case, product self-test module 1 can be configured to wake from sleep mode and trigger a product self-test each time a tilt angle is collected. The corresponding fault code is then written to the corresponding fault flag bit according to a pre-set communication protocol and sent to the manufacturer's equipment management platform 200. Preferably, the pre-set communication protocol includes at least sensor data bits and fault flag bits for transmitting tilt angle data. The configuration method for product self-test module 1 to trigger a product self-test each time a tilt angle is collected can be configured at the factory or remotely configured during installation according to customer needs through the manufacturer's equipment management platform 200.

[0038] If the sensor 100 is installed on the robotic arm of a mechanical device to detect changes in the tilt angle of the robotic arm in real time, the real-time requirement for the tilt angle data is high. The tilt angle data is usually transmitted to the control device configured in the mechanical device in real time. If the product self-test is triggered at the same time as the tilt angle data is collected, the power consumption is large. In this application scenario, the corresponding self-test cycle can be pre-configured in the sensor 100 or issued by the manufacturer's equipment management platform 200. Then the sensor 100 triggers the product self-test according to the self-test cycle.

[0039] Furthermore, when the product self-test module 1 detects abnormal operating parameters of the sensor it is using, it sends the corresponding fault code to the manufacturer's equipment management platform 200 through a pre-set communication protocol. This allows the manufacturer's technicians to view the fault code of the sensor through the manufacturer's equipment management platform 200 and then perform remote fault diagnosis based on the fault code, so as to avoid going to the site for fault investigation or returning the sensor to the factory for repair as much as possible.

[0040] More specifically, the product self-inspection module 1 includes:

[0041] The fault code generation unit 11 is used to monitor the operating parameters of at least one electronic component built into the sensor, and generate a corresponding fault code when the operating parameters are found to be abnormal.

[0042] The protocol code generation unit 12 is connected to the fault code generation unit 11 and is used to write the fault code into the fault identifier bit of the communication protocol according to the preset communication protocol to generate the communication protocol code.

[0043] Specifically, in this embodiment, the fault code generation unit 11 includes:

[0044] Storage subunit 111 is used to store a pre-configured table of correspondence between fault categories and fault codes;

[0045] The self-test subunit 112 is used to monitor the operating parameters of each electronic component built into the sensor, and when the operating parameters are found to be abnormal, it processes and obtains the fault category corresponding to the operating parameters.

[0046] The generation subunit 113 is connected to the storage subunit 111 and the self-test subunit 112 respectively, and is used to obtain the corresponding fault code by matching the fault type with the corresponding relationship table.

[0047] Taking a tilt sensor or long-angle sensor as an example, the electronic components built into the tilt sensor or long-angle sensor include, but are not limited to, a power IC (Integrated Circuit), an accelerometer IC (Integrated Circuit), a MCU (Microcontroller Unit), and a battery. The monitored operating parameters differ depending on the specific electronic component. The aforementioned fault categories can further include a total fault category and subcategories of faults within that total fault category. As a preferred embodiment, the corresponding relationships are shown in Table 1 below:

[0048] Table 1: Correspondence between Fault Categories and Fault Codes

[0049]

[0050]

[0051] Specifically, for the monitoring of the power supply IC's operation, its supply voltage can be monitored as an operating parameter. The system then determines whether this operating parameter is abnormal based on the supply voltage. Preferably, if the supply voltage is within a preset standard voltage range, the power supply IC is considered to be operating normally. If the supply voltage is lower than the lower limit of the preset standard voltage range, the power supply IC is considered to be abnormal, specifically low voltage. If the supply voltage is higher than the upper limit of the preset standard voltage range, the power supply IC is considered to be abnormal, specifically high voltage. When the supply voltage is abnormal and low, the fault code 01 is obtained by matching with Table 1 above; when the supply voltage is abnormal and high, the fault code 02 is obtained by matching with Table 1 above.

[0052] It is understandable that the fault category may not be further divided into a total fault category and fault subcategories under the total fault category. For example, when the power supply voltage is lower than the lower limit of the preset standard voltage range, the fault category can be directly output as "power supply voltage is too low" or "power supply is abnormal and voltage is too low". There is no limitation here.

[0053] When determining the fault category, a category determination table can also be configured. Taking the power IC as an example, it is shown in Table 2 below:

[0054] Table 2 Category Determination Table

[0055]

[0056] After collecting the power supply voltage of the power IC, it is compared with a and b respectively, and then the fault category is obtained based on the comparison result. Subsequently, the fault code is obtained by matching in Table 1.

[0057] As another preferred implementation, Table 1 and Table 2 can be merged into a single correspondence table. In this case, only one correspondence table needs to be maintained to achieve fault category determination and fault code generation. This is not a limitation here.

[0058] It is understood that the above explanation of fault category determination and fault code generation process only uses the power IC as an example; the same principle applies to other electronic components. The fault category determination criteria and operating parameter acquisition methods for each electronic component can adopt existing implementations and are not considered innovative points of this invention, and will not be elaborated upon here. Furthermore, Table 1 above only lists some electronic components and the corresponding fault categories and fault codes for some operating parameters of each electronic component as examples, and is not intended to limit the scope of the invention.

[0059] After generating the fault code using the above process, the fault code is sent in the form of a communication protocol code generated by writing the fault code into the fault identifier bit of the communication protocol preset by the sensor. In the preset communication protocol, each data bit includes a product address bit, a function identifier bit, a sensor data byte count identifier bit, a sensor data bit, a fault identifier bit, and a check bit.

[0060] Existing communication protocols for sensors typically include the aforementioned product address bit, function identifier bit, sensor data byte count identifier bit, sensor data bit, and check bit. It can be seen that the pre-defined communication protocol of the present invention only requires adding a fault identifier bit to the existing sensor communication protocol, which is simple to implement and does not require additional costs.

[0061] The location of the fault identifier bit in the pre-defined communication protocol is not limited, but it is preferably generated by adding the fault identifier bit before the check bit of the existing communication protocol of the sensor 100.

[0062] Specifically, the format of the existing communication protocol code for sensors is shown in the following example:

[0063] 020306014F5A00E2FBE1

[0064] In this invention, the format of the corresponding pre-defined communication protocol code is shown in the following example:

[0065] 020306014F5A00E205FBE1

[0066] Wherein, 02 represents the product address, 03 represents the function code, 06 represents the number of angle data bytes, 014F5A00E2 represents the angle data, 05 represents the fault code, and FBE1 represents the CRC check. In other words, this invention sets an extra byte (with a value range of 00-FF) before the check bit of the existing communication protocol code of sensor 1 as a fault identifier bit for writing fault codes. Of course, multiple bytes can be provided as needed for writing fault codes, but usually one byte is sufficient to characterize the abnormal conditions of different operating parameters of various electronic components in the sensor.

[0067] Furthermore, as a preferred embodiment, if the operating parameters are normal, the fault code of the fault identifier bit in the communication protocol code output by the product self-test module 1 is 00.

[0068] As another preferred embodiment, if the operating parameters are normal, the product self-test module 1 can output a preset invalid fault code. At this time, the sensor 100 can write the invalid fault code into the fault flag bit of the preset communication protocol to form a communication protocol code and send it.

[0069] After generating the communication protocol code containing the fault code, the communication protocol code needs to be sent to the manufacturer's equipment management platform 200 through the remote connection transmission link established between the sensor 100 and the manufacturer's equipment management platform 200, so that technicians can remotely diagnose the fault.

[0070] The methods for establishing remote connection transmission links include:

[0071] Method 1:

[0072] By integrating a long-distance wireless transmission module 2 into the sensor 100, a remote connection transmission link can be directly established between the sensor 100 and the manufacturer's equipment management platform 200.

[0073] Specifically, the long-distance wireless transmission module 2 is connected to the product self-test module 1 and is used to establish a remote connection with the manufacturer's equipment management platform 200 so as to send the fault code to the manufacturer's equipment management platform 200 in the form of communication protocol code.

[0074] Among them, the long-distance wireless transmission module 2 is preferably an NB-IoT (Narrowband Internet of Things) wireless communication module.

[0075] Method 2:

[0076] By integrating a short-range wireless transmission module 3 into the sensor 100, the sensor 100 first establishes a first connection link with the user's mobile terminal 300 through the short-range wireless transmission module 3, and then establishes a second connection link with the manufacturer's equipment management platform 200 using the wireless transmission module built into the mobile terminal 300. The first connection link and the second connection link together constitute the remote connection transmission link between the sensor 100 and the manufacturer's equipment management platform 200.

[0077] Specifically, the short-range wireless transmission module 3 is connected to the product self-test module 1 and is used to establish a wireless connection with the mobile terminal 300 at the installation site of the sensor 100. It also establishes a remote connection with the manufacturer's equipment management platform 200 through the mobile terminal 300, so as to send the fault code to the manufacturer's equipment management platform 200 in the form of communication protocol code.

[0078] Among them, the short-range wireless transmission module 3 is preferably Bluetooth, and the name of the Bluetooth is the unique identification code of the sensor 100. This unique identification code can be the product serial number (SN) of the sensor 100.

[0079] To enable Bluetooth connectivity, in this embodiment, the sensor 100 has a product QR code or barcode on its housing. When a user scans the product QR code or barcode using a mobile terminal 300, the user obtains the unique identification code stored in the product QR code or barcode, and then establishes a wireless connection with the sensor 100 based on the unique identification code.

[0080] In this embodiment, the sensor 100 also integrates a memory 4, which is connected to the product self-test module 1 and is used to cache communication protocol codes containing fault codes.

[0081] The mobile terminal 300 is also used to allow the user to access the memory 4 after establishing a connection with the short-range wireless transmission module 3 of the sensor 100.

[0082] Either implementation method one or implementation method two can be chosen. Preferably, both methods are configured so that implementation method one allows the manufacturer's technicians to promptly obtain the fault codes of each sensor, enabling remote fault diagnosis. Simultaneously, implementation method two allows users to obtain the fault codes of each sensor at the sensor installation site. Furthermore, when implementation method one fails, the manufacturer's technicians, with the user's cooperation, can also use implementation method two to obtain the fault codes of each sensor, thus achieving remote fault diagnosis. And when implementation method two fails, although the user cannot view the fault codes at the sensor installation site, it does not affect the manufacturer's technicians' ability to promptly obtain the fault codes of each sensor, effectively improving the reliability of remote diagnosis.

[0083] When the sensor 100 integrates a long-range wireless transmission module 2 and / or a short-range wireless transmission module 3, the product self-test module 1 can also detect the operating parameters of the long-range wireless transmission module 2 and / or the short-range wireless transmission module 3. Based on this, Table 1 above needs to be further expanded, and the expanded part is shown in Table 3 below:

[0084] Table 3. Operational Testing Parameters of the Wireless Transmission Module

[0085]

[0086]

[0087] In Table 3, the Bluetooth IC corresponds to the short-range wireless transmission module 3, and the serial port IC corresponds to the long-range wireless transmission module 2. The fault categories and fault code generation processes for both are the same as for the other electronic components mentioned above. The fault category determination methods for both can also adopt existing implementation methods, and are not limited here.

[0088] More preferably, considering that some sensor faults may be resolved by configuring some parameters of the sensor or restoring factory settings, in a preferred embodiment of the present invention, the manufacturer's equipment management platform 200 provides a human-machine interface port 201 for the manufacturer's technicians to view fault codes for remote fault diagnosis guidance, and for the manufacturer's technicians to remotely adjust the parameters of the sensor 100. This allows the manufacturer's technicians to not only provide remote fault diagnosis guidance based on fault codes, but also to remotely repair the sensor through remote parameter adjustment, greatly reducing the frequency of business trips and sensor return for repair, saving time and effort while effectively saving after-sales costs.

[0089] This invention also provides a remote fault diagnosis method for sensors, applied to the aforementioned remote fault diagnosis system for sensors, such as... Figure 2 As shown, the remote fault diagnosis method for sensors includes:

[0090] Step S1: The remote fault diagnosis system monitors the operating parameters of the sensor and performs self-diagnosis. When the operating parameters are abnormal, it generates corresponding fault codes and communication protocol codes.

[0091] Step S2: The remote fault diagnosis system for sensors sends the communication protocol code to the manufacturer's equipment management platform for remote fault diagnosis.

[0092] In a preferred embodiment of the present invention, the operating parameters are the operating parameters of at least one electronic component built into the sensor. When the operating parameters are abnormal, the sensor remote fault diagnosis system writes a fault code into the fault flag bit of the communication protocol according to a pre-set communication protocol to generate a communication protocol code. 。

[0093] The above description is merely a preferred embodiment of the present invention and does not limit the implementation and protection scope of the present invention. Those skilled in the art should realize that any equivalent substitutions and obvious changes made using the content of this specification and illustrations should be included within the protection scope of the present invention.

Claims

1. A sensor remote failure diagnosis system characterized by comprising: The system includes a manufacturer's equipment management platform that is remotely connected to the sensor; the sensor integrates a product self-test module, which monitors the operating parameters of the sensor and, when the operating parameters are abnormal, processes the fault category corresponding to the operating parameters, generates a corresponding fault code, and sends the fault code to the manufacturer's equipment management platform in the form of a communication protocol code for remote fault diagnosis. The fault category includes a general fault category and fault subcategories under the general fault category, and the general fault category and the fault subcategories correspond to the fault codes; In the communication protocol, each data bit includes a product address bit, a function identifier bit, a sensor data byte count identifier bit, a sensor data bit, a fault identifier bit, and a check bit; The product self-test module includes: The fault code generation unit is used to monitor the operating parameters of at least one electronic component built into the sensor, and generate the corresponding fault code when the operating parameters are determined to be abnormal. A protocol code generation unit, connected to the fault code generation unit, is used to write the fault code into the fault identifier bit of the communication protocol according to a pre-set communication protocol to generate the communication protocol code; The fault code generation unit includes: The storage sub-unit is used to store a pre-configured table of correspondence between fault categories and fault codes; The self-test subunit is used to monitor the operating parameters of each electronic component built into the sensor, and when the operating parameters are found to be abnormal, to process and obtain the fault category corresponding to the operating parameters. A generation subunit is formed, which is connected to the storage subunit and the self-test subunit respectively, and is used to match the corresponding fault code in the corresponding relationship table according to the fault category; In the correspondence table, the electronic components built into the sensor include a power IC, an accelerometer IC, an MCU, and a battery. Each electronic component corresponds to its own operating parameters, overall fault category, sub-fault category, and fault code. When all operating parameters of all electronic components are normal, the corresponding fault code is 00. The operating parameter corresponding to the power IC is voltage, the corresponding fault category is power supply abnormality, the corresponding fault subcategories are low voltage and high voltage, and the corresponding fault codes are 01 and 02 respectively. The operating parameter corresponding to the accelerometer IC is the duty cycle, the corresponding general fault category is angle abnormality, the corresponding fault subcategories are no output, output does not change and initialization failure, and the corresponding fault codes are 03, 04 and 05 respectively; The operating parameter corresponding to the MCU is memory, the general fault category is system abnormality, the sub-fault categories are system crash, initialization failure, storage failure, read failure and parameter mismatch, and the corresponding fault codes are 06, 07, 08, 09 and 10 respectively. The operating parameter corresponding to the battery is voltage, the general fault category is abnormal power supply, the sub-fault category is insufficient power, and the fault code is 11.

2. The remote fault diagnosis system for sensors according to claim 1, characterized in that, The sensor also integrates a long-distance wireless transmission module, which connects to the product self-test module and is used to establish a remote connection with the manufacturer's equipment management platform to send the fault code to the manufacturer's equipment management platform in the form of the communication protocol code.

3. The remote fault diagnosis system for sensors according to claim 1, characterized in that, The sensor also integrates a short-range wireless transmission module, which connects to the product self-test module. This module is used to establish a wireless connection with a mobile terminal at the sensor's installation site and to establish a remote connection with the manufacturer's equipment management platform via the mobile terminal, so as to send the fault code to the manufacturer's equipment management platform in the form of the communication protocol code.

4. The remote fault diagnosis system for sensors according to claim 3, characterized in that, The short-range wireless transmission module is Bluetooth, and the Bluetooth name is the unique identification code of the sensor in which it is located. The sensor's housing has a product QR code or barcode. When a user scans the product QR code or barcode with the mobile terminal, they obtain the unique identification code stored in the product QR code or barcode, and then establish a wireless connection with the sensor based on the unique identification code.

5. The remote fault diagnosis system for sensors according to claim 3, characterized in that, The sensor also integrates a memory, which is connected to the product self-test module and is used to cache the communication protocol code containing the fault code; The mobile terminal is also used to allow the user to access the memory after establishing a connection with the short-range wireless transmission module of the sensor.

6. A remote fault diagnosis method for sensors, characterized in that, The remote fault diagnosis method for sensors, applied to any one of claims 1-5, comprises: Step S1: The remote fault diagnosis system for the sensor monitors the operating parameters of the sensor and performs self-diagnosis. When the operating parameters are abnormal, it generates a corresponding fault code and generates the communication protocol code. Step S2: The remote fault diagnosis system for sensors sends the communication protocol code to the manufacturer's equipment management platform for remote fault diagnosis.

7. The remote fault diagnosis method for sensors according to claim 6, characterized in that, The operating parameters are the operating parameters of at least one electronic component built into the sensor. When the operating parameters are abnormal, the sensor remote fault diagnosis system writes the fault code into the fault identifier bit of the communication protocol according to the pre-set communication protocol to generate the communication protocol code.

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