CN112078515B - TFT screen alarm lamp detection method and system - Google Patents
TFT screen alarm lamp detection method and system Download PDFInfo
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- CN112078515B CN112078515B CN202010780268.7A CN202010780268A CN112078515B CN 112078515 B CN112078515 B CN 112078515B CN 202010780268 A CN202010780268 A CN 202010780268A CN 112078515 B CN112078515 B CN 112078515B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
Abstract
The embodiment of the invention provides a TFT screen alarm lamp detection method and a TFT screen alarm lamp detection system, wherein the method comprises the following steps: when the power is switched ON, the instrument MCU calls a configuration value of the TFT screen alarm lamp corresponding to the electric control unit and sends the configuration value to the instrument MPU; the instrument MPU dynamically synthesizes each picture in the startup animation and each alarm lamp picture in the TFT screen into an effect pattern according to the configuration value; and the instrument refreshes in real time according to the synthesized effect pattern so as to enable the TFT screen alarm lamp to perform self-checking display. The embodiment of the invention can meet the requirement that the self-checking alarm lamp carries out real-time display according to the configuration value of the MCU and the state of the whole vehicle, and realizes complex self-checking logic through AND operation; the liquid crystal instrument TFT screen starting animation and the alarm lamp self-checking process are ingeniously combined into one, the alarm lamp self-checking time is greatly shortened, and the user experience is greatly improved.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a TFT screen alarm lamp detection method and system.
Background
The intelligent, electric, networking, light and sharing of the automobile increase the number of electric control parts matched with the whole automobile, and the connection relation and control logic between the parts are more complex. The functions of an electric control system such as an engine operation system, an automatic gearbox gear shifting system, an electric power steering system, a vehicle body stability control system and the like are realized by various sensors, collectors, processors and actuators, and the sensors, the collectors, the processors and the actuators need to be communicated with each other when in work. When a certain component of the electronic control system fails or communication between the components fails, the electronic control unit of the vehicle may not obtain correct information, and certain functions of the vehicle may not be realized.
The automobile instrument is used as a display unit, and the electric control system fault and the communication fault thereof are displayed in real time through a friendly man-machine interaction interface. Generally, when the whole vehicle is powered ON, the automobile instrument in the prior art performs self-detection, for example, the mechanical/virtual pointer returns to 0 from 0 to the maximum value, and a part of alarm lamps are turned ON for several seconds and then turned off, so as to enable a driver to know whether the vehicle has a fault before starting the engine, and prevent the bad situation that fault information of other parts cannot be displayed due to the fault of the instrument.
However, the automobile instrument in the prior art is only used for self-checking of the alarm lamp in the traditional sense consisting of the mechanical dial or the virtual dial pointer and the LED lamp bead, and cannot be self-checked for the alarm lamp in the TFT liquid crystal display in the combined instrument. The instrument can not show the function configuration item of car in time, and the driver also can not in time know the state and the security that warning light corresponds electrical system in the TFT screen to cause the potential safety hazard of driving. In addition, for some dangerous chemical substance vehicle instruments, the TFT screen comprises a warning lamp related to regulations, and if the instruments are started, self-checking of the TFT screen warning lamp is not carried out, so that the requirements of the regulations cannot be met. If the driver is not informed whether the alarm control loop of the relevant instrument is normal or not in time, once the electric control unit fails, the driver cannot know the failure and continue driving, and the consequence is unimaginable.
The alarm lamp that is lighted by LED lamp pearl on traditional instrument can't satisfy whole car demand in quantity, and the alarm lamp that too tight is too moreover arranged pleasing to the eye, easily causes driver's uneasiness. At present, the instrument formed by combining the TFT screen and the mechanical pointer, the TFT screen and the color film, and the TFT screen and the large-segment code screen is still the mainstream display scheme. The alarm lamps and the indicator lamps which cannot be displayed by the traditional instrument can be arranged in the TFT screen to be displayed at fixed positions or displayed in turn according to a certain strategy. Certainly, some high-end configuration vehicles directly carry full liquid crystal instruments, and the display content is more abundant and diversified. The combined liquid crystal instrument or the full liquid crystal instrument faces a problem that the TFT screen alarm lamp cannot be self-checked. Therefore, exploring a method for power-on self-test of the alarm lamp in the TFT screen is a new requirement of the regulation and is an urgent technical problem in the industry.
Disclosure of Invention
In order to solve the above problems, embodiments of the present invention provide a TFT screen warning lamp detection method and system that overcome the above problems or at least partially solve the above problems.
According to a first aspect of the embodiments of the present invention, there is provided a TFT screen alarm lamp detection method, including: when the power is switched ON, the instrument MCU calls a configuration value of the TFT screen alarm lamp corresponding to the electric control unit and sends the configuration value to the instrument MPU; the instrument MPU dynamically synthesizes each picture in the startup animation and each alarm lamp picture in the TFT screen into an effect pattern according to the configuration value; and the instrument refreshes in real time according to the synthesized effect pattern so as to enable the TFT screen alarm lamp to perform self-checking display.
According to a second aspect of the embodiments of the present invention, there is provided a TFT screen alarm lamp detection system, including: the adjusting module is used for adjusting the configuration value of the TFT screen alarm lamp corresponding to the electric control unit by the instrument MCU when the power is ON and transmitting the configuration value to the instrument MPU; the synthesis module is used for dynamically synthesizing each picture in the startup animation and each alarm lamp picture in the TFT screen into an effect pattern by the instrument MPU according to the configuration value; and the self-checking module is used for refreshing the instrument in real time according to the synthesized effect pattern so as to enable the TFT screen alarm lamp to perform self-checking display.
According to a third aspect of the embodiments of the present invention, there is provided an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor executes the computer program to implement the TFT screen warning lamp detection method as provided in any one of the various possible implementations of the first aspect.
According to a fourth aspect of embodiments of the present invention, there is provided a non-transitory computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the TFT screen warning lamp detection method as provided by any one of the various possible implementations of the first aspect.
The detection method and the system for the alarm lamp of the TFT screen provided by the embodiment of the invention at least have the following beneficial effects:
1. the embodiment of the invention can meet the requirement that the self-checking alarm lamp carries out real-time display according to the configuration value of the MCU and the state of the whole vehicle, and realizes complex self-checking logic through AND operation.
2. The embodiment of the invention skillfully combines the starting animation of the TFT screen of the liquid crystal instrument and the self-checking process of the alarm lamp, greatly shortens the self-checking time of the alarm lamp and greatly improves the user experience.
3. In the embodiment of the invention, the liquid crystal instrument performs self-checking ON the alarm lamp in the TFT screen for the preset time length each time ON gear is turned ON, so that a driver can recognize the icon and color of each electric control unit corresponding to the alarm lamp and the signal effectiveness of an alarm loop each time the driver starts a vehicle, and the driver can deal with the fault type of the electric control unit related to the alarm lamp in time in the driving process. Different from the frequently used indicator lights such as left steering, right steering, dipped headlight and high beam, the probability of the alarm light in the TFT screen appearing in the driving process of the vehicle is very low. If the self-checking is not carried out, the alarm lamp is not turned on due to the failure of the alarm loop or the alarm lamp is turned on but the driver never sees the alarm lamp icon once the electric control failure occurs subsequently, so that the driver is easy to panic and the driving safety is endangered.
4. The solution provided by the embodiment of the invention can meet the requirements of new regulations and is suitable for various liquid crystal instruments, particularly various dangerous chemical vehicle instruments, to handle the regulations.
5. The technical scheme of the embodiment of the invention is simple and feasible, does not cause a large amount of research and development investment, and has strong universality and convenient popularization.
6. The integrated detection scheme provided by the embodiment of the invention can carry out detection according to the function configuration of a specific vehicle, namely, the vehicle with the configuration carries out power-on self-detection, and otherwise, the self-detection is not carried out. The states of other electric control units of the whole vehicle such as an engine and the like can also be related.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from these without inventive effort.
Fig. 1 is a schematic flow chart of a TFT screen alarm lamp detection method according to an embodiment of the present invention;
FIG. 2 is a block diagram of a liquid crystal meter system according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a layout of a liquid crystal meter according to an embodiment of the present invention;
fig. 4 is a circuit topology diagram of a MCU sending a self-test command to an MPU according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a TFT screen alarm lamp detection system provided in an embodiment of the present invention;
fig. 6 is a schematic physical structure diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments, but not all embodiments, of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition to the above problems in the prior art, it should be noted that some of the warning lamps in the TFT screen of the liquid crystal instrument perform self-check according to whether the function is configured for a specific vehicle type, such as warning lamps related to forward collision warning and lane departure warning, and if the vehicle is not configured with the above functions, the vehicle is not subjected to power-on self-check. Otherwise, power-on self-test is carried out according to the MCU instruction. There are also warning lights that need to be associated with the engine speed signal, such as an OBD warning light in a TFT screen: the instrument is powered ON, and before the engine is started (the rotating speed is less than 600rpm), the OBD alarm lamp is continuously lightened. And when the OBD message is not received within 10 seconds after the engine is started (the rotating speed is more than 700rpm), the OBD is not lightened. And when the OBD message is received within 10 seconds after the engine is started (the rotating speed is more than 700rpm), displaying according to the message state. At this moment, the requirements of MCU and even other electric control units of the whole vehicle need to be associated in real time during self-checking of the TFT screen alarm lamp, so that self-checking of the TFT screen alarm lamp is difficult.
Based on this, the embodiment of the invention provides a real-time integrated detection method for a TFT screen alarm lamp, aiming at the problem that the power-on self-test of the alarm lamp in the TFT liquid crystal screen needs to be logically connected with an MCU and a whole vehicle. Referring first to fig. 2, a block diagram of a liquid crystal meter system is shown. The whole vehicle and the detection method provided by the embodiment of the invention are based on the system. The electric control units related to the instrument, such as an engine, an automatic gearbox, an electronic power steering system, a forward collision early warning system, a lane departure early warning system, a tire pressure monitoring system and the like, are accessed into the instrument through a whole vehicle CAN network, and the instrument CAN transceiver receives CAN messages of the electric control units related to the instrument and transmits the CAN messages to the instrument MCU for analysis and processing. The instrument micro MCU communicates with the instrument MPU in modes of SPI, GPIO and the like, the instrument MPU integrates a kernel, a GPU, USB, MIPI and the like, wherein the TFT liquid crystal screen is driven by the GPU module, signals are transmitted in modes of RGB, LVDS and the like, and the TFT liquid crystal screen backlight module is driven and controlled by the MCU. The power module supplies power for circuits such as the CAN transceiver and the MCU, and in addition, the MCU controls the power supply of the MPU through a plurality of GPIO ports so as to control the power-on and power-off time sequence of the MPU.
No matter the liquid crystal instrument combining the TFT screen and the mechanical pointer, the TFT screen and the color film, the TFT screen and the large-section code screen or the full liquid crystal instrument of the large TFT screen, when the instrument is started, starting animation or starting logo pictures can exist. For a liquid crystal instrument with an operating system, the starting animation or the starting logo picture needs several seconds, and the whole vehicle ON gear electricity detection and the operating system starting process need to be considered for realizing the TFT screen alarm lamp self-inspection. The alarm lamp in the TFT LCD generally needs to complete self-detection about 3 seconds of ON gear electricity ON the whole vehicle, displays the functional configuration items of the vehicle, prompts the driver about the pattern and color of the key electric control unit failure alarm of the whole vehicle, and is convenient for the driver to identify the failure type and severity of each electric control unit of the whole vehicle in the driving process. When the liquid crystal instrument in the embodiment of the invention is started up at an ON gear, the MCU controls the whole system to wake up and light the TFT liquid crystal screen, and the MPU controls the TFT liquid crystal screen to play a startup animation or a startup logo picture along with soft startup music while self-checking of pointers at two sides and self-checking of an alarm lamp or an indicator lamp outside the TFT screen.
The embodiment of the invention provides a TFT screen alarm lamp detection method, which comprises the following steps of:
and step 101, when the power is switched ON, the instrument MCU calls a configuration value of the TFT screen alarm lamp corresponding to the electric control unit and sends the configuration value to the instrument MPU.
In this embodiment, the TFT screen alarm lamp may include a forward collision warning system, a lane departure warning system, and a tire pressure monitoring system corresponding to the electronic control unit.
As an optional embodiment, before step 101, the method further includes step 100: calibrating the configuration value of the TFT screen alarm lamp corresponding to the electric control unit through the EOL equipment, and storing the configuration value of the TFT screen alarm lamp corresponding to the electric control unit in an EEPROM chip of the instrument; accordingly, the instrument MCU retrieves configuration values from the EEPROM chip.
Specifically, in step 100, the TFT liquid crystal screen alarm lamp is calibrated according to the functional configuration value of the electronic control unit through the EOL device when the entire vehicle is off-line, and the calibrated configuration value is stored in the EEPROM chip of the instrument. The instrument EEPROM chip is installed in the liquid crystal instrument and is electrically connected with the instrument MCU.
In step 101, as an alternative embodiment, sending the configuration values to the meter MPU includes: the instrument MCU sends the configuration value to the instrument MPU through the level conversion circuit; wherein, level shift circuit includes: the GPIO port of the instrument MCU is connected with the GPIO port of the instrument MPU through a voltage division circuit, an electronic switch and a filter circuit in sequence; the instrument ground is respectively connected with the voltage division circuit, the electronic switch and the filter circuit; the power supply is respectively connected with the electronic switch and the filter circuit through a pull-up resistor.
Specifically, when the ON gear is switched ON, the instrument MCU calls a configuration value of a function corresponding to the TFT screen alarm lamp from the EEPROM. Wherein, as an alternative embodiment, the values of the configuration values include 1 and 0; a value of 1 indicates having a configuration and a value of 0 indicates not having a configuration. As an optional embodiment, when the configuration value is sent to the meter MPU, the meter MPU is executing a process of starting the operating system and playing the boot animation. That is, the meter MCU transmits the configuration value (0 or 1) to the MPU that is executing the operating system startup, playing the boot animation, through the level conversion circuit. The specific structure of the level shift circuit can be seen in fig. 4.
And 102, dynamically synthesizing each picture in the startup animation and each alarm lamp picture in the TFT screen into an effect pattern by the instrument MPU according to the configuration value.
And the instrument MPU dynamically synthesizes each picture in the startup animation and the alarm lamp picture corresponding to the electric control unit with the configuration value meeting the preset requirement in the TFT screen into an effect pattern. Here, the configuration value meeting the preset requirement means that the configuration value is 1, which indicates that the whole vehicle is configured with the electric control unit.
As an alternative embodiment, the step 102 may further include the following steps: the instrument MPU generates a mask according to the configuration value, and combines the mask with the picture zone bit of the startup animation to carry out dynamic AND operation, and dynamically synthesizes each picture in the startup animation and each alarm lamp picture in the TFT screen into an effect pattern; and storing the effect pattern in the MPU cache.
Specifically, the meter MPU generates a mask according to the received configuration values corresponding to the TFT screen self-inspection alarm lamps, dynamically performs an AND operation on the mask and the startup animation picture flag bit in combination, dynamically synthesizes each picture in the startup animation and each alarm lamp icon in the TFT screen into an effect pattern, and stores the series of patterns in an MPU cache.
And 103, refreshing the instrument in real time according to the synthesized effect pattern so as to enable the TFT screen alarm lamp to perform self-checking display.
Wherein, as an optional embodiment, the TFT screen alarm lamp performs self-checking display including: and the TFT screen alarm lamp performs self-checking display of preset time duration according to preset conditions. Specifically, the instrument is refreshed in real time according to the synthesized pattern so as to realize self-checking display of the TFT screen alarm lamp for 3 seconds (namely preset time length) according to conditions.
In addition, similarly, alarm lamps of other electric control units of the whole vehicle, such as an associated engine and the like, are judged by the instrument MCU, and the state bits are transmitted to the instrument MPU for dynamic integrated self-checking.
In summary, the method for detecting the alarm lamp of the TFT screen provided in the embodiment of the present invention at least has the following beneficial effects:
1. the embodiment of the invention can meet the requirement that the self-checking alarm lamp carries out real-time display according to the configuration value of the MCU and the state of the whole vehicle, and realizes complex self-checking logic through AND operation.
2. The embodiment of the invention skillfully combines the starting animation of the TFT screen of the liquid crystal instrument and the self-checking process of the alarm lamp, greatly shortens the self-checking time of the alarm lamp and greatly improves the user experience.
3. In the embodiment of the invention, the liquid crystal instrument performs 3-second self-inspection ON the alarm lamp in the TFT screen when the ON gear is turned ON every time, so that a driver can easily recognize the icon and color of each electric control unit corresponding to the alarm lamp and the signal effectiveness of an alarm loop before starting the vehicle every time, and the driver can conveniently deal with the fault type of the electric control unit related to the alarm lamp in time in the driving process. Different from the frequently used indicator lights such as left steering, right steering, dipped headlight and high beam, the probability of the alarm light in the TFT screen appearing in the driving process of the vehicle is very low. If the self-checking is not carried out, the alarm lamp is not turned on due to the failure of the alarm loop or the alarm lamp is turned on but the driver never sees the alarm lamp icon once the electric control failure occurs subsequently, so that the driver is easy to panic and the driving safety is endangered.
4. The solution provided by the embodiment of the invention can meet the requirements of new regulations and is suitable for various liquid crystal instruments, particularly various dangerous chemical vehicle instruments, to handle the regulations.
5. The technical scheme of the embodiment of the invention is simple and feasible, does not cause a large amount of research and development investment, and has strong universality and convenient popularization.
6. The integrated detection scheme provided by the embodiment of the invention can carry out detection according to the function configuration of a specific vehicle, namely, the vehicle with the configuration carries out power-on self-detection, and otherwise, the self-detection is not carried out. The states of other electric control units of the whole vehicle such as an engine and the like can also be related.
For better understanding of the technical solutions of the embodiments of the present invention, the technical details of the present invention are explained in detail through an embodiment. It is specifically stated that this embodiment is only a simple application of the technical solution of the present invention, and does not limit the scope of the present invention.
The layout schematic diagram of the liquid crystal instrument provided by the embodiment of the invention is shown in fig. 3, wherein the area B is a large-section code screen, the area A is a TFT liquid crystal screen, the large-section code screen is arranged above the large-section code screen, and the content displayed by the TFT liquid crystal screen at the bottom is fed back to a driver through a light valve window of the large-section code screen. In the area A, 1 and 2 are alarm lamps requiring power-on self-test by regulations, and 3 is an instrument power-on animation logo part. In the area B, 6, 7, 8 and 9 are alarm lamps consisting of LED lamp beads on the segment code screen, and 4 and 5 are virtual dials consisting of the segment code screen and the color films. When the instrument is powered ON, the virtual dial plate and the alarm lamp in the area B are subjected to power-ON self-test. And meanwhile, the starting-up animation is played in the area A, the mask generated by each picture in the starting-up animation and the state bit of each alarm lamp are subjected to dynamic AND operation, and the self-checking alarm lamp icon is displayed in real time according to the operation result. And after the operating system of the instrument is started, the MCU acquires the CAN message of the TFT screen alarm lamp corresponding to the electric control unit, and the MPU application layer of the instrument displays the state of the corresponding alarm lamp by adopting a certain strategy according to the state of the CAN message. In the process, the TFT liquid crystal screen alarm lamp self-checking time and the starting animation playing time are overlapped, and a driver cannot additionally wait for the starting self-checking of the TFT alarm lamp after the starting animation is played by the instrument. And moreover, customized detection is carried out according to the functional configuration of the whole vehicle, and the state of the whole vehicle is also related.
Based on the content of the above embodiments, the embodiment of the present invention provides a TFT screen alarm lamp detection system, which is used to execute the TFT screen alarm lamp detection method in the above method embodiments. Referring to fig. 5, the system includes: the adjusting module 301 is used for adjusting the configuration value of the TFT screen alarm lamp corresponding to the electric control unit by the instrument MCU when the power is ON and transmitting the configuration value to the instrument MPU; the synthesis module 302 is used for dynamically synthesizing each picture in the startup animation and each alarm lamp picture in the TFT screen into an effect pattern by the instrument MPU according to the configuration value; and the self-checking module 303 is used for refreshing the instrument in real time according to the synthesized effect pattern so as to enable the TFT screen alarm lamp to perform self-checking display.
An embodiment of the present invention provides an electronic device, as shown in fig. 6, the electronic device includes: a processor (processor)501, a communication Interface (Communications Interface)502, a memory (memory)503, and a communication bus 504, wherein the processor 501, the communication Interface 502, and the memory 503 are configured to communicate with each other via the communication bus 504. The processor 501 may call a computer program on the memory 503 and operable on the processor 501 to execute the TFT alarm light detection method provided by the above embodiments, for example, including: when the power is switched ON, the instrument MCU calls a configuration value of the TFT screen alarm lamp corresponding to the electric control unit and sends the configuration value to the instrument MPU; the instrument MPU dynamically synthesizes each picture in the startup animation and each alarm lamp picture in the TFT screen into an effect pattern according to the configuration value; and the instrument refreshes in real time according to the synthesized effect pattern so as to enable the TFT screen alarm lamp to perform self-checking display.
In addition, the logic instructions in the memory 503 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
An embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented to, when executed by a processor, perform the TFT screen alarm lamp detection method provided in each of the above embodiments, for example, including: when the power is switched ON, the instrument MCU calls a configuration value of the TFT screen alarm lamp corresponding to the electric control unit and sends the configuration value to the instrument MPU; the instrument MPU dynamically synthesizes each picture in the startup animation and each alarm lamp picture in the TFT screen into an effect pattern according to the configuration value; and the instrument refreshes in real time according to the synthesized effect pattern so as to enable the TFT screen alarm lamp to perform self-checking display.
The above-described embodiments of the electronic device and the like are merely illustrative, and units illustrated as separate components may or may not be physically separate, and components displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute the various embodiments or some parts of the methods of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A TFT screen alarm lamp detection method is characterized by comprising the following steps:
when the power is switched ON, the instrument micro control unit MCU calls a configuration value of the thin film transistor TFT screen alarm lamp corresponding to the electric control unit, and the instrument micro control unit MCU sends the configuration value to the instrument microprocessor MPU through the level conversion circuit; wherein the level shift circuit comprises: the general input/output GPIO port of the instrument micro control unit MCU is connected with the general input/output GPIO port of the instrument microprocessor MPU through a voltage division circuit, an electronic switch and a filter circuit in sequence; the instrument ground is respectively connected with the voltage division circuit, the electronic switch and the filter circuit; the power supply is respectively connected with the electronic switch and the filter circuit through pull-up resistors;
the instrument microprocessor MPU dynamically synthesizes each picture in the startup animation and the alarm lamp picture in the TFT screen into an effect pattern according to the configuration value;
and the instrument refreshes in real time according to the synthesized effect pattern so as to enable the thin film transistor TFT screen alarm lamp to perform self-checking display.
2. The method of claim 1, wherein before the instrument micro control unit MCU calls the configuration value of the corresponding function of the thin film transistor TFT screen alarm lamp in the ON gear, the method further comprises the following steps:
calibrating a configuration value of the TFT screen alarm lamp corresponding to the electric control unit through an EOL device of the off-line detector, and storing the configuration value of the TFT screen alarm lamp corresponding to the electric control unit in an EEPROM chip of an electrified erasable programmable read-only memory of the instrument;
correspondingly, the instrument micro-control unit MCU retrieves the configuration value from the EEPROM chip.
3. The method of claim 1, wherein the values of the configuration values comprise 1 and 0; a value of 1 indicates having a configuration and a value of 0 indicates not having a configuration.
4. The method of claim 1, wherein when the configuration values are sent to a meter microprocessor MPU, the meter microprocessor MPU is executing a process of operating system startup, playing a boot animation.
5. The method according to claim 1, wherein the meter microprocessor MPU dynamically synthesizes each picture in the power-on animation and the alarm lamp picture in the thin film transistor TFT screen into an effect pattern according to the configuration values, including:
the meter microprocessor MPU generates a mask according to the configuration value, and combines the mask with a startup animation picture flag bit to perform dynamic AND operation, and dynamically synthesizes each picture in the startup animation and an alarm lamp picture in the thin film transistor TFT screen into an effect pattern; and storing the effect pattern into an MPU cache of the instrument microprocessor.
6. The method of claim 1, wherein the Thin Film Transistor (TFT) screen warning light self-checking display comprises:
and the thin film transistor TFT screen alarm lamp performs self-checking display of preset duration according to preset conditions.
7. A TFT screen alarm lamp detecting system, characterized by includes:
the system comprises a transferring module, an instrument Micro Control Unit (MCU), an instrument Microprocessor (MPU), a level conversion circuit and a power supply module, wherein the transferring module is used for transferring a configuration value of a Thin Film Transistor (TFT) screen alarm lamp corresponding to an electric control unit when the power supply module is in an ON gear, and the instrument Micro Control Unit (MCU) sends the configuration value to the MPU through the level conversion circuit; wherein the level shift circuit comprises: the general input/output GPIO port of the instrument micro control unit MCU is connected with the general input/output GPIO port of the instrument microprocessor MPU through a voltage division circuit, an electronic switch and a filter circuit in sequence; the instrument ground is respectively connected with the voltage division circuit, the electronic switch and the filter circuit; the power supply is respectively connected with the electronic switch and the filter circuit through pull-up resistors;
the synthesis module is used for dynamically synthesizing each picture in the startup animation and the alarm lamp picture in the thin film transistor TFT screen into an effect pattern by the instrument microprocessor MPU according to the configuration value;
and the self-checking module is used for refreshing the instrument in real time according to the synthesized effect pattern so as to enable the thin film transistor TFT screen alarm lamp to perform self-checking display.
8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the steps of the TFT screen warning light detection method as claimed in any one of claims 1 to 6 are implemented when the processor executes the program.
9. A non-transitory computer readable storage medium having stored thereon a computer program, wherein the computer program when executed by a processor implements the steps of the TFT screen warning lamp detection method according to any one of claims 1 to 6.
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| CN202010780268.7A CN112078515B (en) | 2020-08-05 | 2020-08-05 | TFT screen alarm lamp detection method and system |
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| CN202010780268.7A CN112078515B (en) | 2020-08-05 | 2020-08-05 | TFT screen alarm lamp detection method and system |
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| CN112078515B true CN112078515B (en) | 2022-03-04 |
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| CN202010780268.7A Active CN112078515B (en) | 2020-08-05 | 2020-08-05 | TFT screen alarm lamp detection method and system |
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