CN113485286A - Remote monitoring terminal fault prompting method and remote monitoring terminal - Google Patents
Remote monitoring terminal fault prompting method and remote monitoring terminal Download PDFInfo
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- CN113485286A CN113485286A CN202110691425.1A CN202110691425A CN113485286A CN 113485286 A CN113485286 A CN 113485286A CN 202110691425 A CN202110691425 A CN 202110691425A CN 113485286 A CN113485286 A CN 113485286A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 34
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- 230000006872 improvement Effects 0.000 description 2
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24065—Real time diagnostics
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Abstract
The invention discloses a remote monitoring terminal fault prompting method and a remote monitoring terminal, belonging to the technical field of vehicle fault prompting, wherein the method comprises the following steps: setting a self-checking switch to be in a closed state in a power-ON stage, entering an initialization stage after detecting a rising edge of a hard wire IGN from OFF to ON, setting the self-checking switch to be in an open state in the initialization stage, and not carrying out fault processing; after initialization is completed, the remote monitoring terminal periodically detects a self DTC, identifies fault types based on the DTC, and carries out instrument prompt on the fault types belonging to the types of the instrument alarm lamps. The invention can avoid unnecessary trouble for users, false alarm and current consumption caused by continuous detection of vehicles in OFF state.
Description
Technical Field
The invention belongs to the technical field of vehicle fault prompting, and particularly relates to a fault prompting method for a remote monitoring terminal and the remote monitoring terminal.
Background
The vehicle remote monitoring terminal (T-BOX) detects the fault of the Diagnostic Trouble Code (DTC) and gives an alarm through the meter. However, the remote monitoring terminal gives an instrument alarm to all faults of the remote monitoring terminal, unnecessary trouble is brought to users, fault detection is carried out when initialization is not completed, false alarm is easy to occur, and current consumption caused by continuous detection in the vehicle OFF state causes vehicle feeding.
Disclosure of Invention
Aiming at the defects or the improvement requirements of the prior art, the invention provides the remote monitoring terminal fault prompting method and the remote monitoring terminal, which can avoid unnecessary trouble brought to a user, false alarm and vehicle feeding caused by current consumption caused by continuous detection of a vehicle in an OFF state.
In order to achieve the above object, according to an aspect of the present invention, there is provided a method for prompting a fault of a remote monitoring terminal, including:
setting a self-checking switch to be in a closed state in a power-ON stage, entering an initialization stage after detecting a rising edge of a hard wire IGN from OFF to ON, setting the self-checking switch to be in an open state in the initialization stage, and not carrying out fault processing;
after initialization is completed, the remote monitoring terminal periodically detects a self DTC, identifies fault types based on the DTC, and carries out instrument prompt on the fault types belonging to the types of the instrument alarm lamps.
In some optional embodiments, in the process of periodically detecting the DTC of the remote monitoring terminal, if a fault state signal of the current DTC changes and the current DTC exists, reporting the current DTC.
In some alternative embodiments, the CAN fault status signal is defined to be undefined during the power-up phase.
In some alternative embodiments, the fault status signal is defined as initialized during an initialization phase, and any faults that occur during the initialization phase are not handled.
In some optional embodiments, the indicating a fault type belonging to a type of a warning light of a meter includes:
if the fault state signal of the current DTC is switched from a non-fault state to a fault state and the fault type corresponding to the current DTC belongs to the fault type of the alarm lamp type of the instrument, immediately sending the fault state signal to the CAN bus and lighting the instrument lamp;
and if the fault state signal of the current DTC is switched from the fault state to the non-fault state, immediately sending the fault state signal to the CAN bus, and extinguishing the instrument lamp.
In some optional embodiments, in the detection phase, if the acquired DTC fault state corresponds to a plurality of DTCs, the fault state is acquired by applying or operating the status of each DTC to be lit.
According to another aspect of the present invention, there is provided a remote monitoring terminal including:
the power-ON initialization module is used for setting the self-detection switch to be in a closed state in a power-ON stage, entering an initialization stage after detecting a rising edge of the hard wire IGN from OFF to ON, and setting the self-detection switch to be in an open state in the initialization stage without carrying out fault processing;
and the fault prompt module is used for periodically detecting a self DTC (digital time control) by the remote monitoring terminal after initialization is completed, identifying a fault type based on the DTC and prompting the instrument of the fault type belonging to the type of the instrument alarm lamp.
In some optional embodiments, in the process of periodically detecting the DTC of the remote monitoring terminal, if a fault state signal of the current DTC changes and the current DTC exists, reporting the current DTC.
In some optional embodiments, the fault prompting module is configured to send a fault state signal to the CAN bus immediately and light an instrument lamp when a fault state signal of a current DTC is switched from a non-fault state to a fault state and a fault type corresponding to the current DTC belongs to a fault type of an instrument alarm lamp type; when the fault state signal of the current DTC is switched from the fault state to the non-fault state, the fault state signal is immediately sent to the CAN bus, and the instrument lamp is turned off.
According to another aspect of the invention, a computer-readable storage medium is provided, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method of any of the above.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
the remote monitoring terminal judges the alarm type of the self DTC instead of lightening the alarm lamp when all DTCs are accumulated, the alarm lamp is lightened when the key DTCs are lightened, and the real vehicle can not directly feel the fault and report the background, so that unnecessary troubles are avoided for users. Meanwhile, a fault detection processing strategy is designed by combining the states of vehicle initialization, OFF and the like, so that false alarm is avoided, and vehicle feeding caused by current consumption caused by continuous detection of the vehicle in the OFF state is avoided.
Drawings
Fig. 1 is a schematic flowchart of a method for prompting a fault of a remote monitoring terminal according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a fault detection implementation method provided in an embodiment of the present invention;
fig. 3 is a schematic flowchart of a method for implementing a DTC reporting background according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a remote monitoring terminal according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example one
Fig. 1 is a schematic flow chart of a method for prompting a fault of a remote monitoring terminal according to an embodiment of the present invention, where the method shown in fig. 1 includes the following steps:
s1: setting a self-checking switch to be in a closed state in a power-ON stage, entering an initialization stage after detecting a rising edge of a hard wire IGN from OFF to ON, setting the self-checking switch to be in an open state in the initialization stage, and not carrying out fault processing;
in the embodiment, when the vehicle power state is OFF, the self-checking switch is set to be in an OFF state in the power-on stage, and any fault occurring in the period is not processed; the CAN fault state signal is defined as 'undefined' in the power-on stage, so that current consumption caused by continuous detection of the vehicle in the OFF state is avoided, and vehicle power feeding is avoided.
In this embodiment, during the initialization stage, a rising edge of the hard wire IGN from OFF to ON is detected, and the self-checking switch is set to be in an ON state during the initialization stage; when entering the initialization phase, the fault status signal is defined as initialization, and any fault occurring during the initialization phase is not processed, so as to avoid false alarm.
S2: after initialization is completed, the remote monitoring terminal periodically detects a self DTC, identifies fault types based on the DTC, and carries out instrument prompt on the fault types belonging to the types of the instrument alarm lamps.
In this embodiment, the failure type design is performed in advance, and includes:
(1) and (3) prompting faults by using the instrument: according to the trouble influence, whether the definition carries out the warning light suggestion includes:
1) need the fault of alarm lamp lightening: the real vehicle function is influenced, and faults can be sensed on the real vehicle; but the fault for prompting the user or the maintenance personnel to operate does not influence the function of the real vehicle and does not turn on the alarm lamp.
2) The fault of the alarm lamp does not need to be lightened: faults which cannot be directly sensed by the real vehicle can be detected through the mobile terminal APP or a background (such as a Bluetooth module); however, the whole vehicle fault caused by the system with low power supply voltage influences the function fault of the whole vehicle with higher level, and the T-BOX does not give an alarm repeatedly.
(2) Uploading background faults: in the continuous detection process, if the status of the current fault code DTC changes and the current fault code exists, the corresponding fault code is reported.
Fig. 2 is a schematic flow chart of a fault detection implementation method provided in an embodiment of the present invention, and the specific implementation process is as follows:
the method comprises the following steps that a hard wire IGN is ON, after initialization is completed, a detection stage is started, DTC recording is carried out ON detected faults, the fault state of a DTC is immediately obtained, whether the faults need to be lighted or not is judged, if the faults do not need to be lighted, a fault state signal is updated to be 'self-checking completion and no faults', if the faults need to be lighted, the fault state signal is updated to be 'self-checking completion and system faults', and the fault state signal is immediately sent to an instrument for lighting prompt;
when the fault state signal is switched from a non-fault state to a fault state (prompting instrument to light up) or switched from the fault state to the non-fault state (prompting instrument to extinguish alarm lamp), a fault state signal frame is immediately sent to the CAN bus, and a general receiver is a display terminal, such as an instrument.
For example, after the initialization is completed, if a fault state is detected, the self-check is completed, and after a system fault is detected, the fault state is changed and becomes a fault-free state, the fault state is sent to be the self-check completed, and the fault-free state informs the instrument to turn off the alarm lamp. If the fault status signal does not change the meter maintains the previous state without having to send the signal again.
In the detection stage, a plurality of DTCs are corresponding to the acquired DTC fault state, and the fault state is acquired by applying or operating the state of each DTC needing lighting, namely one or more DTCs with current faults, and a fault state signal of 'self-checking completion and system fault' is acquired; without a DTC for the current fault, a fault status signal of "self-check completed, no fault" should be obtained.
Wherein the detection phase duration continues until a falling edge occurs from IGN ON to IGN OFF.
Fig. 3 is a schematic flow chart of a method for implementing a DTC reporting background according to an embodiment of the present invention, which includes the following specific implementation processes:
and after the initialization is finished, when the current fault state of the DTC changes, uploading the current DTC state of the background.
The uploading logic is as follows: and entering a detection stage, immediately acquiring the fault state of the DTC once, and uploading the fault code of the current DTC to a background if the current fault code is detected. If not, the detection is continued.
And in the continuous detection process, if the state of the current fault code changes, triggering the report of the diagnosis information. When the current fault code is released, the current fault code is also triggered to be uploaded to a background once, and the background DTC is informed of the state change.
In this embodiment, two schemes of background uploading and instrument alarming are combined for the self fault state. The TBOX periodically detects a self fault state DTC in the operation process, identifies the fault type, and establishes an identification rule: uploading the DTC to a background when the DTC fails currently and the state of the DTC changes; and designing an alarm fault type of the instrument, and sending the alarm fault type belonging to the alarm lamp type of the instrument in the DTC to the instrument for prompting.
Example two
Fig. 4 is a schematic structural diagram of a remote monitoring terminal according to an embodiment of the present invention, which includes:
a power-ON initialization module 401, configured to set the self-test switch to be in a closed state in a power-ON stage, enter an initialization stage after detecting a rising edge of the hard-line IGN from OFF to ON, set the self-test switch to be in an open state in the initialization stage, and do not perform fault processing;
and the fault prompt module 402 is used for periodically detecting a self DTC (digital time control) by the remote monitoring terminal after initialization is completed, identifying a fault type based on the DTC, and prompting the instrument with the fault type belonging to the type of the instrument alarm lamp.
In this embodiment, in the process of periodically detecting the DTC of the remote monitoring terminal, if the fault status signal of the current DTC changes and the current DTC exists, the current DTC is reported.
In this embodiment, the fault prompting module 402 is configured to send a fault status signal to the CAN bus immediately and light an instrument lamp when a fault status signal of a current DTC is switched from a non-fault status to a fault status, and a fault type corresponding to the current DTC belongs to a fault type of an instrument alarm lamp type; when the fault state signal of the current DTC is switched from the fault state to the non-fault state, the fault state signal is immediately sent to the CAN bus, and the instrument lamp is turned off.
The specific implementation of each module may refer to the description of the above method embodiment, and this embodiment will not be repeated.
It should be noted that, according to the implementation requirement, each step/component described in the present application can be divided into more steps/components, and two or more steps/components or partial operations of the steps/components can be combined into new steps/components to achieve the purpose of the present invention.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A fault prompting method for a remote monitoring terminal is characterized by comprising the following steps:
setting a self-checking switch to be in a closed state in a power-ON stage, entering an initialization stage after detecting a rising edge of a hard wire IGN from OFF to ON, setting the self-checking switch to be in an open state in the initialization stage, and not carrying out fault processing;
after initialization is completed, the remote monitoring terminal periodically detects a self DTC, identifies fault types based on the DTC, and carries out instrument prompt on the fault types belonging to the types of the instrument alarm lamps.
2. The method according to claim 1, characterized in that in the process of periodically detecting the DTC of the remote monitoring terminal, if the fault status signal of the current DTC changes and the current DTC exists, the current DTC is reported.
3. Method according to claim 1 or 2, characterized in that the CAN fault status signal is defined as undefined during power-up phase.
4. A method according to claim 3, characterized in that in the initialization phase the fault status signal is defined as initialization, and any fault occurring in the initialization phase is not processed.
5. The method of claim 1, wherein said instrument alerting a type of fault belonging to a type of instrument warning light comprises:
if the fault state signal of the current DTC is switched from a non-fault state to a fault state and the fault type corresponding to the current DTC belongs to the fault type of the alarm lamp type of the instrument, immediately sending the fault state signal to the CAN bus and lighting the instrument lamp;
and if the fault state signal of the current DTC is switched from the fault state to the non-fault state, immediately sending the fault state signal to the CAN bus, and extinguishing the instrument lamp.
6. The method of claim 5, wherein in the detection phase, if the DTC fault status obtained corresponds to a plurality of DTCs, the fault status is obtained by applying or operating the status of each DTC to be lit.
7. A remote monitoring terminal, comprising:
the power-ON initialization module is used for setting the self-detection switch to be in a closed state in a power-ON stage, entering an initialization stage after detecting a rising edge of the hard wire IGN from OFF to ON, and setting the self-detection switch to be in an open state in the initialization stage without carrying out fault processing;
and the fault prompt module is used for periodically detecting a self DTC (digital time control) by the remote monitoring terminal after initialization is completed, identifying a fault type based on the DTC and prompting the instrument of the fault type belonging to the type of the instrument alarm lamp.
8. The remote monitoring terminal of claim 7, wherein in the process of periodically detecting the DTC of the remote monitoring terminal, if a fault status signal of the current DTC changes and the current DTC exists, the current DTC is reported.
9. The remote monitoring terminal according to claim 8, wherein the fault prompt module is configured to immediately send a fault state signal to the CAN bus to light the instrument lamp when a fault state signal of a current DTC is switched from a non-fault state to a fault state and a fault type corresponding to the current DTC belongs to a fault type of an instrument alarm lamp type; when the fault state signal of the current DTC is switched from the fault state to the non-fault state, the fault state signal is immediately sent to the CAN bus, and the instrument lamp is turned off.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 6.
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| CN202110691425.1A CN113485286A (en) | 2021-06-22 | 2021-06-22 | Remote monitoring terminal fault prompting method and remote monitoring terminal |
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| CN202110691425.1A CN113485286A (en) | 2021-06-22 | 2021-06-22 | Remote monitoring terminal fault prompting method and remote monitoring terminal |
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| CN102929268A (en) * | 2012-10-16 | 2013-02-13 | 福建慧翰微电子有限公司 | Self checking implementation method of vehicle-mounted remote monitoring terminal |
| CN203888637U (en) * | 2014-03-28 | 2014-10-22 | 北京兴科迪科技有限公司 | Combination instrument of battery powered electric vehicle |
| CN106557082A (en) * | 2015-09-26 | 2017-04-05 | 广州汽车集团股份有限公司 | DTC detection and recording method and the vehicle electrically controlling unit of vehicle electrically controlling unit |
| CN110928271A (en) * | 2019-11-27 | 2020-03-27 | 江铃汽车股份有限公司 | Automobile self-service diagnosis method and system |
| CN111474918A (en) * | 2020-04-23 | 2020-07-31 | 江铃汽车股份有限公司 | Whole vehicle diagnosis method for electric vehicle |
| WO2021092745A1 (en) * | 2019-11-12 | 2021-05-20 | 华为技术有限公司 | Device upgrade method and related device |
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2021
- 2021-06-22 CN CN202110691425.1A patent/CN113485286A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102929268A (en) * | 2012-10-16 | 2013-02-13 | 福建慧翰微电子有限公司 | Self checking implementation method of vehicle-mounted remote monitoring terminal |
| CN203888637U (en) * | 2014-03-28 | 2014-10-22 | 北京兴科迪科技有限公司 | Combination instrument of battery powered electric vehicle |
| CN106557082A (en) * | 2015-09-26 | 2017-04-05 | 广州汽车集团股份有限公司 | DTC detection and recording method and the vehicle electrically controlling unit of vehicle electrically controlling unit |
| WO2021092745A1 (en) * | 2019-11-12 | 2021-05-20 | 华为技术有限公司 | Device upgrade method and related device |
| CN110928271A (en) * | 2019-11-27 | 2020-03-27 | 江铃汽车股份有限公司 | Automobile self-service diagnosis method and system |
| CN111474918A (en) * | 2020-04-23 | 2020-07-31 | 江铃汽车股份有限公司 | Whole vehicle diagnosis method for electric vehicle |
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