CN111338317A - Instrument system and implementation method thereof - Google Patents
Instrument system and implementation method thereof Download PDFInfo
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- CN111338317A CN111338317A CN202010132520.3A CN202010132520A CN111338317A CN 111338317 A CN111338317 A CN 111338317A CN 202010132520 A CN202010132520 A CN 202010132520A CN 111338317 A CN111338317 A CN 111338317A
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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
Abstract
The invention provides an instrument system and an implementation method thereof.A data unit, a first unit and a second unit are arranged, a monitoring module is arranged in the second unit to monitor the working state of the first unit, when the first unit works abnormally, the second unit takes over the work of the first unit, and a display driving unit and a display unit are shared, so that the high reliability of a digital instrument is realized, and the hardware cost is saved.
Description
Technical Field
The invention relates to the technical field of automobile instruments, in particular to an instrument system and an implementation method thereof.
Background
With the development of vehicle-mounted electronics, vehicle-mounted terminal products gradually develop towards digitization and intellectualization. In-vehicle instrumentation products have also evolved from past mechanical instrumentation to large-size high-resolution digital liquid crystal instrumentation, with software-rendered virtual pointers replacing the mechanical pointers of conventional instrumentation. However, in the digital instrument product realized by the virtualization technology, due to the unreliability of software, when a system crashes, the image display of the digital instrument is not refreshed or disappeared, and the driving safety of a driver is seriously affected.
Therefore, a need exists for a stable and reliable digitizer system.
Disclosure of Invention
The invention provides an instrument system and an implementation method thereof, aiming at solving the defects in the prior art and realizing high reliability of a digital instrument.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
one aspect of the present invention provides a meter system comprising:
a data unit for transmitting vehicle state data to the first unit and the second unit;
the first unit is used for providing display data when the instrument system works normally;
the second unit is used for providing display data when the first unit works abnormally;
a display driving unit for driving the display of the display unit;
a display unit for displaying a meter interface;
the data unit comprises a data receiving module, a first data sending module, a second data sending module, a data sending control module and a first communication module; the first unit comprises a second communication module, a first data receiving module, a first data analyzing module, a first interface generating module, a response module and a restarting module; the second unit comprises a third communication module, a second data receiving module, a second data analyzing module, a second interface generating module, an interface selecting module and a monitoring module;
the data receiving module, the data sending control module and the first communication module are respectively connected with the first data sending module and the second data sending module, and the first communication module is also connected with the data sending control module, the second communication module and the third communication module;
the second communication module, the first data receiving module, the first data analyzing module and the first interface generating module are sequentially connected, the first interface generating module is also connected with the interface selecting module, and the response module and the restarting module are connected with the monitoring module;
the third communication module, the second data receiving module, the second data analyzing module, the second interface generating module and the interface selecting module are sequentially connected, and the interface selecting module is also connected with the monitoring module and the display driving unit;
the display driving unit is connected with the display unit;
the data receiving module is used for acquiring vehicle state data through a vehicle body bus;
the first data sending module is used for sending the data received by the data receiving module to the first data receiving module;
the second data sending module is used for sending the data received by the data receiving module to the second data receiving module;
the data transmission control module is used for selecting the first data transmission module or the second data transmission module to transmit data;
the first communication module is used for establishing communication with the second communication module and the third communication module;
the second communication module is used for communicating with the first communication module;
the first data receiving module is used for receiving the data sent by the first data sending module;
the first data analysis module is used for analyzing the data of the first data receiving module;
the first interface generation module is used for generating interface elements of the instrument system;
the response module is used for responding to the system health monitoring data sent by the monitoring module;
the restarting module is used for restarting and initializing the first unit;
the third communication module is used for communicating with the first communication module;
the second data receiving module is configured to receive the data sent by the second data sending module;
the second data analysis module is used for analyzing the data of the second data receiving module;
the second interface generation module is used for generating interface elements of the instrument system;
the interface selection module is used for switching the first interface generation module or the second interface generation module to provide interface elements of the instrument system for the display driving unit;
and the monitoring module is used for sending system health monitoring data to the monitoring module and generating an interface generation module switching instruction.
Specifically, the first communication module, the second communication module and the third communication module are serial port communication modules, and the vehicle body bus is a CAN bus.
Specifically, the vehicle state data includes vehicle speed information, mileage information, oil amount information, and a warning lamp state.
In another aspect, the present invention provides a method for implementing an instrumentation system, including:
step 1, the second unit monitors the working state of the first unit, and when the first unit is detected to work abnormally, the next step is carried out;
step 2, the second unit informs the data unit to switch a vehicle state data channel to the second unit;
step 3, the second unit receives vehicle state data and switches the generation of an instrument interface into the second unit;
step 4, the second unit restarts the first unit;
step 5, the second unit judges whether the working state of the first unit is normal after restarting, if so, the next step is carried out, otherwise, the step 4 is returned;
step 6, the second unit informs the data unit to switch the vehicle state data channel to the first unit;
and 7, the first unit receives the vehicle state data, the generation of the instrument interface is switched into the first unit, and the step 1 is returned.
Specifically, the step 1 includes:
step 101, a monitoring module sends a health monitoring data packet to a response module in a preset period;
and 102, judging whether the monitoring module receives a preset response of the response module within a preset time, if so, judging that the first unit works normally, returning to the step 101, otherwise, judging whether the repetition frequency of the step 101 reaches a preset value, and if so, judging that the first unit works abnormally.
Specifically, the step 2 includes: the monitoring module sends a data channel switching instruction to the data sending control module, and the data sending control module switches the data channel from the first data sending module to the second data sending module.
Specifically, the step 3 includes:
step 301, a second data receiving module receives vehicle state data;
step 302, a second data analysis module analyzes the vehicle state data;
303, generating interface elements of the instrument system by a second interface generation module according to the analyzed vehicle state data and the pre-stored UI resources;
step 303, the monitoring module sends an instrument interface generation switching instruction to the interface selection module, and the interface selection module switches the interface generation channel from the first interface generation module to the second interface generation module.
Specifically, the step 4 includes: and the monitoring module sends a restart instruction to the restart module.
Specifically, the step 6 includes: the monitoring module sends a data channel switching instruction to the data sending control module, and the data sending control module switches the data channel from the second data sending module to the first data sending module.
Specifically, the step 7 includes:
step 701, a first data receiving module receives vehicle state data;
step 702, a first data analysis module analyzes the vehicle state data;
703, generating interface elements of the instrument system by the first interface generation module according to the analyzed vehicle state data and the pre-stored UI resources;
and 703, the monitoring module sends an instrument interface generation switching instruction to the interface selection module, and the interface selection module switches the interface generation channel from the second interface generation module to the first interface generation module.
The invention has the beneficial effects that: according to the invention, the data unit, the first unit and the second unit are arranged, the monitoring module is arranged in the second unit to monitor the working state of the first unit, when the first unit works abnormally, the second unit takes over the work of the first unit, and the display driving unit and the display unit are shared, so that not only is the high reliability of the digital instrument realized, but also the hardware cost is saved.
Drawings
FIG. 1 is a schematic diagram of the instrumentation system of the present invention;
FIG. 2 is a flow chart diagram of a meter system implementation method of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are for reference and illustrative purposes only and are not intended to limit the scope of the invention.
As shown in fig. 1, one aspect of the present invention provides a meter system including:
a data unit for transmitting vehicle state data to the first unit and the second unit;
the first unit is used for providing display data when the instrument system works normally;
the second unit is used for providing display data when the first unit works abnormally;
a display driving unit for driving the display of the display unit;
a display unit for displaying a meter interface;
the data unit comprises a data receiving module, a first data sending module, a second data sending module, a data sending control module and a first communication module; the first unit comprises a second communication module, a first data receiving module, a first data analyzing module, a first interface generating module, a response module and a restarting module; the second unit comprises a third communication module, a second data receiving module, a second data analyzing module, a second interface generating module, an interface selecting module and a monitoring module;
the data receiving module, the data sending control module and the first communication module are respectively connected with the first data sending module and the second data sending module, and the first communication module is also connected with the data sending control module, the second communication module and the third communication module;
the second communication module, the first data receiving module, the first data analyzing module and the first interface generating module are sequentially connected, the first interface generating module is also connected with the interface selecting module, and the response module and the restarting module are connected with the monitoring module;
the third communication module, the second data receiving module, the second data analyzing module, the second interface generating module and the interface selecting module are sequentially connected, and the interface selecting module is also connected with the monitoring module and the display driving unit;
the display driving unit is connected with the display unit;
the data receiving module is used for acquiring vehicle state data through a vehicle body bus;
the first data sending module is used for sending the data received by the data receiving module to the first data receiving module;
the second data sending module is used for sending the data received by the data receiving module to the second data receiving module;
the data transmission control module is used for selecting the first data transmission module or the second data transmission module to transmit data;
the first communication module is used for establishing communication with the second communication module and the third communication module;
the second communication module is used for communicating with the first communication module;
the first data receiving module is used for receiving the data sent by the first data sending module;
the first data analysis module is used for analyzing the data of the first data receiving module;
the first interface generation module is used for generating interface elements of the instrument system;
the response module is used for responding to the system health monitoring data sent by the monitoring module;
the restarting module is used for restarting and initializing the first unit;
the third communication module is used for communicating with the first communication module;
the second data receiving module is configured to receive the data sent by the second data sending module;
the second data analysis module is used for analyzing the data of the second data receiving module;
the second interface generation module is used for generating interface elements of the instrument system;
the interface selection module is used for switching the first interface generation module or the second interface generation module to provide interface elements of the instrument system for the display driving unit;
and the monitoring module is used for sending system health monitoring data to the monitoring module and generating an interface generation module switching instruction.
In this embodiment, the first communication module, the second communication module and the third communication module are serial communication modules, and the vehicle body bus is a CAN bus.
In this embodiment, the vehicle status data includes vehicle speed information, mileage information, fuel amount information, and a warning lamp status.
As shown in fig. 2, another aspect of the embodiment of the present invention provides a meter system implementation method, including:
step 1, the second unit monitors the working state of the first unit, and when the first unit is detected to work abnormally, the next step is carried out.
In this embodiment, the step 1 includes:
step 101, a monitoring module sends a health monitoring data packet to a response module in a preset period;
and 102, judging whether the monitoring module receives a preset response of the response module within a preset time, if so, judging that the first unit works normally, returning to the step 101, otherwise, judging whether the repetition frequency of the step 101 reaches a preset value, and if so, judging that the first unit works abnormally.
And 2, the second unit informs the data unit of switching a vehicle state data channel to the second unit.
In this embodiment, the step 2 includes: the monitoring module sends a data channel switching instruction to the data sending control module, and the data sending control module switches the data channel from the first data sending module to the second data sending module.
And 3, the second unit receives the vehicle state data and switches the generation of the instrument interface into the second unit.
In this embodiment, the step 3 includes:
step 301, a second data receiving module receives vehicle state data;
step 302, a second data analysis module analyzes the vehicle state data;
303, generating interface elements of the instrument system by a second interface generation module according to the analyzed vehicle state data and the pre-stored UI resources;
step 303, the monitoring module sends an instrument interface generation switching instruction to the interface selection module, and the interface selection module switches the interface generation channel from the first interface generation module to the second interface generation module.
And 4, restarting the first unit by the second unit.
In this embodiment, the step 4 includes: and the monitoring module sends a restart instruction to the restart module.
And 5, the second unit judges whether the working state of the first unit is normal after restarting, if so, the next step is carried out, and if not, the step 4 is returned.
And 6, the second unit informs the data unit of switching the vehicle state data channel to the first unit.
In this embodiment, the step 6 includes: the monitoring module sends a data channel switching instruction to the data sending control module, and the data sending control module switches the data channel from the second data sending module to the first data sending module.
And 7, the first unit receives the vehicle state data, the generation of the instrument interface is switched into the first unit, and the step 1 is returned.
In this embodiment, the step 7 includes:
step 701, a first data receiving module receives vehicle state data;
step 702, a first data analysis module analyzes the vehicle state data;
703, generating interface elements of the instrument system by the first interface generation module according to the analyzed vehicle state data and the pre-stored UI resources;
and 703, the monitoring module sends an instrument interface generation switching instruction to the interface selection module, and the interface selection module switches the interface generation channel from the second interface generation module to the first interface generation module.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention.
Claims (10)
1. An instrumentation system, comprising:
a data unit for transmitting vehicle state data to the first unit and the second unit;
the first unit is used for providing display data when the instrument system works normally;
the second unit is used for providing display data when the first unit works abnormally;
a display driving unit for driving the display of the display unit;
a display unit for displaying a meter interface;
the data unit comprises a data receiving module, a first data sending module, a second data sending module, a data sending control module and a first communication module; the first unit comprises a second communication module, a first data receiving module, a first data analyzing module, a first interface generating module, a response module and a restarting module; the second unit comprises a third communication module, a second data receiving module, a second data analyzing module, a second interface generating module, an interface selecting module and a monitoring module;
the data receiving module, the data sending control module and the first communication module are respectively connected with the first data sending module and the second data sending module, and the first communication module is also connected with the data sending control module, the second communication module and the third communication module;
the second communication module, the first data receiving module, the first data analyzing module and the first interface generating module are sequentially connected, the first interface generating module is also connected with the interface selecting module, and the response module and the restarting module are connected with the monitoring module;
the third communication module, the second data receiving module, the second data analyzing module, the second interface generating module and the interface selecting module are sequentially connected, and the interface selecting module is also connected with the monitoring module and the display driving unit;
the display driving unit is connected with the display unit;
the data receiving module is used for acquiring vehicle state data through a vehicle body bus;
the first data sending module is used for sending the data received by the data receiving module to the first data receiving module;
the second data sending module is used for sending the data received by the data receiving module to the second data receiving module;
the data transmission control module is used for selecting the first data transmission module or the second data transmission module to transmit data;
the first communication module is used for establishing communication with the second communication module and the third communication module;
the second communication module is used for communicating with the first communication module;
the first data receiving module is used for receiving the data sent by the first data sending module;
the first data analysis module is used for analyzing the data of the first data receiving module;
the first interface generation module is used for generating interface elements of the instrument system;
the response module is used for responding to the system health monitoring data sent by the monitoring module;
the restarting module is used for restarting and initializing the first unit;
the third communication module is used for communicating with the first communication module;
the second data receiving module is configured to receive the data sent by the second data sending module;
the second data analysis module is used for analyzing the data of the second data receiving module;
the second interface generation module is used for generating interface elements of the instrument system;
the interface selection module is used for switching the first interface generation module or the second interface generation module to provide interface elements of the instrument system for the display driving unit;
and the monitoring module is used for sending system health monitoring data to the monitoring module and generating an interface generation module switching instruction.
2. The meter system according to claim 1, wherein the first communication module, the second communication module, and the third communication module are serial communication modules, and the vehicle body bus is a CAN bus.
3. The meter system of claim 1, wherein the vehicle status data is vehicle speed information, mileage information, fuel quantity information, alarm light status.
4. An instrumentation system implementation method, comprising:
step 1, the second unit monitors the working state of the first unit, and when the first unit is detected to work abnormally, the next step is carried out;
step 2, the second unit informs the data unit to switch a vehicle state data channel to the second unit;
step 3, the second unit receives vehicle state data and switches the generation of an instrument interface into the second unit;
step 4, the second unit restarts the first unit;
step 5, the second unit judges whether the working state of the first unit is normal after restarting, if so, the next step is carried out, otherwise, the step 4 is returned;
step 6, the second unit informs the data unit to switch the vehicle state data channel to the first unit;
and 7, the first unit receives the vehicle state data, the generation of the instrument interface is switched into the first unit, and the step 1 is returned.
5. The instrumentation system implementation method according to claim 4, wherein said step 1 comprises:
step 101, a monitoring module sends a health monitoring data packet to a response module in a preset period;
and 102, judging whether the monitoring module receives a preset response of the response module within a preset time, if so, judging that the first unit works normally, returning to the step 101, otherwise, judging whether the repetition frequency of the step 101 reaches a preset value, and if so, judging that the first unit works abnormally.
6. The instrumentation system implementation method according to claim 5, wherein said step 2 comprises: the monitoring module sends a data channel switching instruction to the data sending control module, and the data sending control module switches the data channel from the first data sending module to the second data sending module.
7. The instrumentation system implementation method according to claim 6, wherein said step 3 comprises:
step 301, a second data receiving module receives vehicle state data;
step 302, a second data analysis module analyzes the vehicle state data;
303, generating interface elements of the instrument system by a second interface generation module according to the analyzed vehicle state data and the pre-stored UI resources;
step 303, the monitoring module sends an instrument interface generation switching instruction to the interface selection module, and the interface selection module switches the interface generation channel from the first interface generation module to the second interface generation module.
8. The instrumentation system implementation method according to claim 7, wherein said step 4 comprises: and the monitoring module sends a restart instruction to the restart module.
9. The instrumentation system implementation method according to claim 8, wherein said step 6 comprises: the monitoring module sends a data channel switching instruction to the data sending control module, and the data sending control module switches the data channel from the second data sending module to the first data sending module.
10. The instrumentation system implementation method according to claim 9, wherein said step 7 comprises:
step 701, a first data receiving module receives vehicle state data;
step 702, a first data analysis module analyzes the vehicle state data;
703, generating interface elements of the instrument system by the first interface generation module according to the analyzed vehicle state data and the pre-stored UI resources;
and 703, the monitoring module sends an instrument interface generation switching instruction to the interface selection module, and the interface selection module switches the interface generation channel from the second interface generation module to the first interface generation module.
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