Excavator control method and system based on TBOX module failure detection

Abstract

The invention belongs to the technical field of excavators, and provides an excavator control method and system based on TBOX module failure detection, and the method comprises the steps: judging a time accumulated value when a voltage value of a TBOX module is out of a preset range, and judging that the TBOX module fails when the overall accumulated time is greater than a preset failure duration, the aim of detecting the TBOX failure of the excavator is fulfilled; meanwhile, when the time is accumulated and the continuous duration of the voltage value outside the preset range is greater than the first preset duration, starting timing; after timing is started, if the continuous duration when the voltage value is out of the preset range does not exceed the second preset duration, the duration is judged to be invalid and is not used as accumulated data of the overall duration, otherwise, the duration is judged to be effective, and by deleting the invalid duration, the misjudgment phenomenon is reduced, and the precision is improved; only the voltage value and the accumulated duration are judged, effective value judgment is carried out, and the comprehensive requirements of low cost, simple data and high judgment precision can be met.

Description

Technical Field

[0001] The present invention belongs to the technical field of excavators, and in particular relates to an excavator control method and system based on TBOX module failure detection. Background Art

[0002] When the 4G module of the telematics box (TBOX) of the excavator is damaged, the vehicle will not be locked. Since the TBOX loses connection with the platform, data cannot be reported and the vehicle cannot be locked from the platform, which poses a great risk to the company's vehicle management.

[0003] At present, there is no effective method to detect TBOX failure on excavators. After TBOX fails, the remote control of the excavator fails and the response time is delayed. When encountering legal, financial disputes or other emergencies, it is impossible to issue instructions from the remote platform, the security risk increases, the excavator may be illegally operated or stolen, maintenance and monitoring are difficult, and the working status of the excavator cannot be effectively monitored. When the failure detection of TBOX on the excavator is carried out through network models and other methods, the cost is high and the pressure of collecting and processing data is high. When failure judgment is made by numerical comparison, the accuracy is low and it is easy to make misjudgments. It cannot take into account the comprehensive needs of low cost, simple data and high judgment accuracy. Summary of the invention

[0004] In order to solve the above problems, the present invention proposes an excavator control method and system based on TBOX module failure detection. The present invention judges the time accumulated value when the voltage value of the TBOX module is outside the preset range. When the overall accumulated time is greater than the preset failure duration, the TBOX module is judged to be failed, thereby achieving the purpose of detecting the failure of the excavator TBOX; at the same time, when the time is accumulated, when the continuous time when the voltage value is outside the preset range is greater than the first preset duration, the timing is started; after the timing starts, if the continuous time when the voltage value is outside the preset range does not exceed the second preset duration, it is judged as an invalid duration and is not used as the accumulated data of the overall duration; otherwise, it is judged as a valid value and accumulated as the accumulated data of the overall duration. By deleting the invalid duration, the misjudgment phenomenon is reduced and the accuracy is improved.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0006] In a first aspect, the present invention provides an excavator control method based on TBOX module failure detection, comprising:

[0007] Get the voltage value of the TBOX module;

[0008] The time when the voltage value is outside the preset range is accumulated, and when the overall accumulated time is greater than the preset failure time, the TBOX module is judged to be failed; wherein, when the time is accumulated, when the continuous time when the voltage value is outside the preset range is greater than the first preset time, the timing starts; after the timing starts, if the continuous time when the voltage value is outside the preset range does not exceed the second preset time, it is judged as an invalid time and is not used as the accumulated data of the overall time; otherwise, it is judged as a valid value and is accumulated as the accumulated data of the overall time;

[0009] According to the failure judgment result of the TBOX module, the control scheme of the excavator is obtained and controlled.

[0010] Furthermore, when accumulating the time, the duration of normal operation of the TBOX module between two adjacent valid values ​​of continuous duration is judged. If the duration of normal operation is greater than the third preset duration, the former valid value duration of the two adjacent valid values ​​of continuous duration is changed to invalid duration and is not used as the accumulated data of the overall duration.

[0011] Furthermore, the preset range includes a first preset voltage value and a second preset voltage value, and the first preset voltage value is smaller than the second preset voltage value.

[0012] Furthermore, when it is determined that the TBOX module fails, a high-level control signal is used to control the excavator start relay and the normally closed relay at the instrument end to be energized and disconnected.

[0013] Furthermore, after determining that the TBOX module has failed, the power supply level is detected. If the power supply level is lower than the preset value, or the power line connection is unstable, it is determined to be a power problem; otherwise, it is determined whether the display is abnormal enough, or whether the TBOX power supply line is damaged. If so, it is determined to be a line problem, otherwise continue to find the cause.

[0014] Furthermore, if there is no power supply problem or line problem, a corresponding request is sent to the TBOX module to determine whether it is a SIM card problem; the temperature and pressure of the TBOX module are obtained to determine whether the temperature and pressure are within the valid range and whether it is a hardware failure.

[0015] In a second aspect, the present invention further provides an excavator control system based on TBOX module failure detection, comprising:

[0016] The data acquisition module is configured to: obtain the voltage value of the TBOX module;

[0017] The judgment module is configured to: accumulate the time when the voltage value is outside the preset range, and when the overall accumulated time is greater than the preset failure time, judge that the TBOX module is failed; wherein, when the time is accumulated, when the continuous time when the voltage value is outside the preset range is greater than the first preset time, start timing; after starting timing, if the continuous time when the voltage value is outside the preset range does not exceed the second preset time, it is judged as an invalid time and is not used as the accumulated data of the overall time; otherwise, it is judged as a valid value and is accumulated as the accumulated data of the overall time;

[0018] The control module is configured to obtain a control scheme for the excavator and perform control according to the failure judgment result of the TBOX module.

[0019] In a third aspect, the present invention further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the excavator control method based on TBOX module failure detection described in the first aspect.

[0020] In a fourth aspect, the present invention further provides an electronic device comprising a memory, a processor, and a computer program stored in the memory and capable of running on the processor, wherein when the processor executes the program, the steps of the excavator control method based on TBOX module failure detection described in the first aspect are implemented.

[0021] In a fifth aspect, the present invention further provides a computer program product, which includes a computer program. When the computer program is executed by a processor, the steps of the excavator control method based on TBOX module failure detection described in the first aspect are implemented.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] In the present invention, by judging the accumulated value of the time when the voltage value of the TBOX module is outside the preset range, when the overall accumulated time is greater than the preset failure duration, the TBOX module is judged to be failed, thereby achieving the purpose of detecting the failure of the excavator TBOX; at the same time, when the time is accumulated, when the continuous time when the voltage value is outside the preset range is greater than the first preset time, the timing starts; after the timing starts, if the continuous time when the voltage value is outside the preset range does not exceed the second preset time, it is judged as an invalid time and is not used as the accumulated data of the overall time; otherwise, it is judged as a valid value and is accumulated as the accumulated data of the overall time. By deleting the invalid time, the misjudgment phenomenon is reduced and the accuracy is improved; only the voltage value and the accumulated time are judged, and the effective value judgment is performed, which can take into account the comprehensive requirements of low cost, simple data and high judgment accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings in the specification that constitute a part of this embodiment are used to provide a further understanding of this embodiment. The schematic embodiments of this embodiment and their descriptions are used to explain this embodiment and do not constitute improper limitations on this embodiment.

[0025] Figure 1 is a flow chart of the method of embodiment 1 of the present invention;

[0026] Figure 2 This is a system schematic diagram of Example 1 of the present invention. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0029] Embodiment 1:

[0030] At present, the excavator will not lock the vehicle after the 4G module of TBOX is damaged. Because TBOX loses connection with the platform, it is unable to report data and the vehicle lock cannot be issued from the platform, which poses a great risk to the company's vehicle management. Based on this, if Figure 1 As shown, this embodiment provides an excavator control method based on TBOX module failure detection, including:

[0031] Get the voltage value of the TBOX module;

[0032] The time when the voltage value is outside the preset range is accumulated, and when the overall accumulated time is greater than the preset failure time, the TBOX module is judged to be failed; wherein, when the time is accumulated, when the continuous time when the voltage value is outside the preset range is greater than the first preset time, the timing starts; after the timing starts, if the continuous time when the voltage value is outside the preset range does not exceed the second preset time, it is judged as an invalid time and is not used as the accumulated data of the overall time; otherwise, it is judged as a valid value and is accumulated as the accumulated data of the overall time;

[0033] According to the failure judgment result of the TBOX module, the control scheme of the excavator is obtained and controlled.

[0034] Specifically, by judging the accumulated time value when the voltage value of the TBOX module is outside the preset range, when the overall accumulated time is greater than the preset failure time, the TBOX module is judged to be failed, thereby achieving the purpose of detecting the failure of the excavator TBOX; at the same time, when accumulating the time, when the continuous time when the voltage value is outside the preset range is greater than the first preset time, the timing starts; after starting the timing, if the continuous time when the voltage value is outside the preset range does not exceed the second preset time, it is judged as an invalid time and is not used as the accumulated data of the overall time; otherwise, it is judged as a valid value and is accumulated as the accumulated data of the overall time. By deleting the invalid time, the misjudgment phenomenon is reduced and the accuracy is improved; only the voltage value and the accumulated time are judged, and the effective value judgment is performed, which can take into account the comprehensive needs of low cost, simple data and high judgment accuracy.

[0035] In order to implement the method in this embodiment, a system is also provided, such as Figure 2 As shown, it includes a voltage detection module connected to the TBOX module, such as a voltage sensor; the voltage detection module is connected to the vehicle controller MCU.

[0036] Optionally, the preset range is set to 4.5V-5.5V, the preset failure time is set to 7 days, the first preset time is set to 30s, and the second preset time is set to 10s. Specifically, the voltage value of the TBOX4G module is detected by the voltage detection module, and the voltage value is output to the whole machine controller MCU; the vehicle controller MCU detects and processes the voltage value. When the voltage value is <4.5V or >5.5V, it is judged that the TBOX module has failed and the cumulative working time begins; after the vehicle controller MCU determines that the cumulative failure time is greater than 7 days (188h), the vehicle controller MCU outputs a high-level control signal, at which time the start relay and the normally closed relay at the instrument end are energized and disconnected, and the instrument reports the 4G module failure and the secondary lock alarm. The engine is in the secondary lock state at this time and cannot be started.

[0037] It should be noted that when the power supply of the TBOX module is 5V, the working range is 4.5V-5.5V, and the TBOX module does not work outside this range. In other embodiments, the working range value is not fixed according to the selection of the TBOX module, such as some may be 3.8V, and the effective range value is 3.4-4.5V.

[0038] In order to further reduce the phenomenon of misjudgment, in this embodiment, when accumulating the time, the normal operation time of the TBOX module between the two consecutive valid values ​​of the determined time is judged. If the normal operation time is greater than the third preset time, the valid value time of the two consecutive valid values ​​of the determined time is changed to an invalid time, and is not used as the cumulative data of the overall time. Optionally, when the voltage value is less than 4.5V or greater than 5.5V, and it is maintained for 30s, it is judged as failure, and the cumulative time begins. At this time, if the cumulative time exceeds 10s, it is judged as a valid value and storage accumulation begins; on this basis, the normal operation time between each two failures is considered, for example, the normal interval time is used to determine whether the corresponding failure is a valid time value, if it is a valid failure time, it is accumulated, if it is judged to be an invalid failure time, it is deleted, to avoid the accumulation of invalid time and improve the judgment accuracy; the third preset time can be adjusted according to the actual situation, such as using 60s or other values.

[0039] In this embodiment, after determining that the TBOX module has failed, the power supply is detected. If the power supply is lower than the preset value, or the power line connection is unstable, it is determined to be a power problem; otherwise, it is determined whether the display is abnormal enough, or whether the TBOX power supply line is damaged. If so, it is determined to be a line problem, otherwise continue to find the cause. If there is no power problem or line problem, a corresponding request is sent to the TBOX module to determine whether it is a SIM card problem; the temperature and pressure of the TBOX module are obtained, and it is determined whether the temperature and pressure are within the valid range to determine whether it is a hardware failure. Through the above-mentioned orderly problem screening, the problem location can be determined efficiently and accurately, providing a strong basis for maintenance after the TBOX module fails.

[0040] Specifically, when judging whether it is a power problem, if the battery is low or the power connection is unstable, the module may not work properly. You can check to make sure that the battery is sufficient and the power cord is firmly connected. When judging whether it is a line problem, the wire may be short-circuited or broken due to aging, friction or improper installation, resulting in TBOX power supply or communication interruption. You can use the display to judge whether the bus communication is normal and the MCU port to check whether the TBOX power supply line is damaged. When judging whether it is a SIM card problem, the built-in SIM card is used for data communication. If the SIM card is damaged, loose or in arrears, it will affect the normal operation of the 4G module. You can use the instruction manual protocol of the 4G module, AT instructions and the module to request. The module returns the response you requested to obtain the information you need, confirm whether the SIM card is damaged, loose or in arrears, and ensure its normal operation. When judging whether it is a hardware failure, such as the motherboard or chip, it may be damaged by high temperature, moisture or external impact, resulting in the failure of the 4G module. You can check the temperature, pressure, etc. to determine whether it is within the effective range. High temperature and moisture can be obtained through temperature and humidity sensors. When determining whether it is an antenna failure, TBOX relies on the antenna to receive and send signals. If the antenna is damaged, loose, or poorly connected, the 4G module will not be able to connect to the network normally. You can check the antenna to ensure that it is intact and fastened, and there are no metal objects around the antenna to block the signal.

[0041] Embodiment 2:

[0042] This embodiment provides an excavator control system based on TBOX module failure detection, including:

[0043] The data acquisition module is configured to: obtain the voltage value of the TBOX module;

[0044] The judgment module is configured to: accumulate the time when the voltage value is outside the preset range, and when the overall accumulated time is greater than the preset failure time, judge that the TBOX module is failed; wherein, when the time is accumulated, when the continuous time when the voltage value is outside the preset range is greater than the first preset time, start timing; after starting timing, if the continuous time when the voltage value is outside the preset range does not exceed the second preset time, it is judged as an invalid time and is not used as the accumulated data of the overall time; otherwise, it is judged as a valid value and is accumulated as the accumulated data of the overall time;

[0045] The control module is configured to obtain a control scheme for the excavator and perform control according to the failure judgment result of the TBOX module.

[0046] The working method of the system is the same as the excavator control method based on TBOX module failure detection in Example 1, and will not be repeated here.

[0047] Embodiment 3:

[0048] This embodiment provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the steps of the excavator control method based on TBOX module failure detection described in Example 1 are implemented.

[0049] Embodiment 4:

[0050] This embodiment provides an electronic device, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor. When the processor executes the program, the steps of the excavator control method based on TBOX module failure detection described in Example 1 are implemented.

[0051] Embodiment 5:

[0052] This embodiment provides a computer program product, which includes a computer program. When the computer program is executed by a processor, the steps of the excavator control method based on TBOX module failure detection described in Example 1 are implemented.

[0053] The above description is only a preferred embodiment of the present embodiment and is not intended to limit the present embodiment. For those skilled in the art, the present embodiment may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present embodiment shall be included in the protection scope of the present embodiment.

Claims

1. An excavator control method based on TBOX module failure detection, characterized in that: include: Get the voltage value of the TBOX module; The time when the voltage value is outside the preset range is accumulated, and when the overall accumulated time is greater than the preset failure time, the TBOX module is judged to be failed; wherein, when the time is accumulated, when the continuous time when the voltage value is outside the preset range is greater than the first preset time, the timing starts; after the timing starts, if the continuous time when the voltage value is outside the preset range does not exceed the second preset time, it is judged as an invalid time and is not used as the accumulated data of the overall time; otherwise, it is judged as a valid value and is accumulated as the accumulated data of the overall time; According to the failure judgment result of the TBOX module, the control scheme of the excavator is obtained and controlled.

2. The excavator control method based on TBOX module failure detection according to claim 1, characterized in that: When accumulating time, the duration of normal operation of the TBOX module between two consecutive valid values ​​of the determined continuous duration is judged. If the duration of normal operation is greater than the third preset duration, the former valid value duration of the two consecutive valid values ​​of the determined continuous duration is changed to an invalid duration and is not used as the accumulated data of the overall duration.

3. The excavator control method based on TBOX module failure detection according to claim 1, characterized in that: The preset range includes a first preset voltage value and a second preset voltage value, and the first preset voltage value is smaller than the second preset voltage value.

4. The excavator control method based on TBOX module failure detection according to claim 1, characterized in that: When the TBOX module is judged to be failed, a high-level control signal is used to control the excavator start relay and the normally closed relay at the instrument end to be energized and disconnected.

5. The excavator control method based on TBOX module failure detection according to claim 1, characterized in that: After determining that the TBOX module has failed, the power supply is tested. If the power supply is lower than the preset value or the power line connection is unstable, it is determined to be a power problem; otherwise, it is determined whether the display is abnormal or the TBOX power supply line is damaged. If so, it is determined to be a line problem, otherwise continue to find the cause.

6. The excavator control method based on TBOX module failure detection as claimed in claim 5, characterized in that: If there is no power supply problem or line problem, a corresponding request is sent to the TBOX module to determine whether it is a SIM card problem; the temperature and pressure of the TBOX module are obtained to determine whether the temperature and pressure are within the valid range and whether it is a hardware failure.

7. An excavator control system based on TBOX module failure detection, characterized in that: include: The data acquisition module is configured to: obtain the voltage value of the TBOX module; The judgment module is configured to: accumulate the time when the voltage value is outside the preset range, and when the overall accumulated time is greater than the preset failure time, judge that the TBOX module is failed; wherein, when the time is accumulated, when the continuous time when the voltage value is outside the preset range is greater than the first preset time, start timing; after starting timing, if the continuous time when the voltage value is outside the preset range does not exceed the second preset time, it is judged as an invalid time and is not used as the accumulated data of the overall time; otherwise, it is judged as a valid value and is accumulated as the accumulated data of the overall time; The control module is configured to obtain a control scheme for the excavator and perform control according to the failure judgment result of the TBOX module.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the excavator control method based on TBOX module failure detection as described in any one of claims 1 to 6 are implemented.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and capable of running on the processor, characterized in that: When the processor executes the program, the steps of the excavator control method based on TBOX module failure detection as described in any one of claims 1 to 6 are implemented.

10. A computer program product, characterized in that The computer program product comprises a computer program, and when the computer program is executed by a processor, the steps of the excavator control method based on TBOX module failure detection as described in any one of claims 1 to 6 are implemented.

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