A split full liquid crystal combination instrument, information display method and vehicle

Abstract

The embodiment of the present invention discloses a split full liquid crystal combination instrument, an information display method and a vehicle. The instrument includes: a display device and a control device, the display device includes a deserializer, a first MCU chip, a video processing module and a liquid crystal display; the control device includes a SOC chip and a serializer; the SOC chip is used to process the first state information, generate video information and send it to the serializer; the serializer is used to string the video information and send the video string information to the deserializer; the deserializer is used to deserialize the video string information and send the video information to the video processing module; the first MCU chip is used to obtain the second state information related to the safety function and send it to the video processing module; the video processing module is used to send the video information to the liquid crystal display for display, and the current display information related to the safety function is verified with the second state information, and the display is updated based on the verification result, so as to accurately display the safety function status.

Description

Technical Field

[0001] Embodiments of the present invention relate to the field of vehicle technology, and in particular to a split-type full liquid crystal combination instrument, an information display method, and a vehicle. Background Art

[0002] With the continuous development of automobile technology, drivers and passengers are paying more and more attention to driving safety. Drivers can directly recognize the vehicle status through the content displayed on the dashboard, and the safety function logo is particularly important. Vehicle status information can refer to information such as vehicle operating parameters and mileage. Safety function refers to the function on the dashboard related to driving safety, for example: ABS (Anti-lock Brake System) is one of the many safety functions.

[0003] At present, more and more automobile manufacturers are using split full-LCD instrument clusters, that is, instruments with split display devices and control devices, and require that the safety function identification display function in the split full-LCD instrument cluster needs to meet at least the functional safety level ASIL (Automotive Safety Integration Level) of Class B, that is, ASILB. However, the SOC (System on Chip) chip in the split full-LCD instrument cluster usually does not meet the functional safety level ASILB, which may cause the split full-LCD instrument cluster to display incorrect status information related to the safety function. For example, when the ABS fails, the ABS fault information needs to be displayed on the split full-LCD instrument cluster, but the split full-LCD instrument cluster does not display the ABS fault information, which cannot effectively ensure the user's driving safety. Summary of the invention

[0004] The embodiments of the present invention provide a split full liquid crystal combination instrument, an information display method and a vehicle to ensure the accuracy of the display of status information related to the safety function when the SOC chip does not meet the preset functional safety level, thereby effectively ensuring the driving safety of the user.

[0005] In a first aspect, an embodiment of the present invention provides a split full liquid crystal combination instrument, the instrument comprising: a display device and a control device, wherein the display device comprises: a deserializer, a first MCU (Micro Controller Unit, microcontroller) chip, a video processing module and a liquid crystal display; the control device comprises: a SOC chip and a serializer;

[0006] Wherein, the deserializer, the first MCU chip, the video processing module and the serializer all meet the preset functional safety level, and the SOC chip does not meet the preset functional safety level;

[0007] The SOC chip is used to obtain first state information to be displayed in the vehicle, process the first state information, generate video information corresponding to the first state information, and send the video information to the serializer;

[0008] The serializer is used to string the video information and send the stringed video information to the deserializer;

[0009] The deserializer is used to deserialize the video string information and send the deserialized video information to the video processing module;

[0010] The first MCU chip is used to obtain second state information related to the safety function in the vehicle based on a preset acquisition method, and send the second state information to the video processing module;

[0011] The video processing module is used to send the video information to the LCD display for display, and to verify the current display information related to the safety function displayed by the LCD display with the second status information, and to update and display the current display information based on the verification result.

[0012] In a second aspect, an embodiment of the present invention provides an information display method, which is applied to a split full liquid crystal combination instrument, wherein the split full liquid crystal combination instrument includes a display device and a control device, and the method includes:

[0013] Acquire first state information to be displayed in the vehicle through the SOC chip in the control device, process the first state information, generate video information corresponding to the first state information, and send the video information to the serializer in the control device;

[0014] The video information is serialized by the serializer in the control device, and the serialized video information is sent to the deserializer in the display device;

[0015] Deserializing the video string information through a deserializer in the display device, and sending the deserialized video information to a video processing module in the display device;

[0016] Acquire second state information related to a safety function in the vehicle through the first MCU chip in the display device based on a preset acquisition method, and send the second state information to a video processing module in the display device;

[0017] The video information is sent to the liquid crystal display in the display device for display through the video processing module in the display device, and the current display information related to the safety function displayed by the liquid crystal display is verified with the second status information, and the current display information is updated and displayed based on the verification result.

[0018] In a third aspect, an embodiment of the present invention provides a vehicle, the vehicle comprising the split-type full liquid crystal combination instrument provided by any embodiment of the present invention.

[0019] The technical solution of the embodiment of the present invention uses the SOC chip in the control device that does not meet the preset functional safety level to obtain the first state information to be displayed in the vehicle, and processes the first state information to generate video information corresponding to the first state information, and sends the video information to the serializer in the control device; uses the serializer in the control device to string the video information, and sends the stringed video string information to the deserializer in the display device; uses the deserializer in the display device to deserialize the video string information, and sends the deserialized video information to the video processing module in the display device; the first MCU chip in the display device can obtain the second state information related to the safety function in the vehicle based on the preset acquisition method, and send the first state information to the video processing module in the display device; The second state information is sent to the video processing module in the display device; the video processing module in the display device can be used to send the video information to the liquid crystal display in the display device for display, and the current display information related to the safety function displayed by the liquid crystal display in the display device is verified with the second state information, and the current display information is updated and displayed based on the verification result, so that the current display information related to the safety function displayed by the liquid crystal display in the display device is consistent with the second state information, so as to achieve accurate display of the safety function on the liquid crystal display, so that when the SOC chip does not meet the preset functional safety level, the accuracy of the display of the state information related to the safety function can be guaranteed, thereby effectively ensuring the driving safety of the user.

[0020] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a structural schematic diagram of a split-type full liquid crystal combination instrument provided by the first embodiment of the present invention;

[0023] Figure 2 This is a structural schematic diagram of a split-type full liquid crystal combination instrument provided by Embodiment 2 of the present invention;

[0024] Figure 3 It is a structural schematic diagram of a split-type full liquid crystal combination instrument involved in the second embodiment of the present invention;

[0025] Figure 4 is a structural schematic diagram of another split-type full liquid crystal combination instrument involved in the second embodiment of the present invention;

[0026] Figure 5 is a flow chart of an information display method provided by Embodiment 3 of the present invention;

[0027] Figure 6 It is a structural schematic diagram of a vehicle provided in Embodiment 4 of the present invention. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0029] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0030] Embodiment 1

[0031] Figure 11 is a schematic diagram of the structure of a split full liquid crystal instrument cluster provided in the first embodiment of the present invention. The split full liquid crystal instrument cluster provided in this embodiment can be used to display vehicle status information, especially when the SOC chip in the split full liquid crystal instrument cluster does not meet the preset functional safety level, the vehicle status information can be displayed. Figure 1 As shown, the split full liquid crystal combination instrument may include: a control device 10 and a display device 20; the control device 10 may include: a SOC chip 101 and a serializer 102; the display device 20 may include: a deserializer 201, a first MCU chip 203, a video processing module 202 and a liquid crystal display 204. Among them, the deserializer 201, the first MCU chip 203, the video processing module 202 and the serializer 102 all meet the preset functional safety level, and the SOC chip 101 does not meet the preset functional safety level.

[0032] Among them, the SOC chip 101 is used to obtain the first state information to be displayed in the vehicle, and process the first state information to generate video information corresponding to the first state information, and send the video information to the serializer 102; the serializer 102 is used to string the video information, and send the serialized video string information to the deserializer 201; the deserializer 201 is used to deserialize the video string information, and send the deserialized video information to the video processing module 202; the first MCU chip 203 is used to obtain the second state information related to the safety function in the vehicle based on a preset acquisition method, and send the second state information to the video processing module 202; the video processing module 202 is used to send the video information to the LCD display 204 for display, and verify the current display information related to the safety function displayed by the LCD display 204 with the second state information, and update and display the current display information based on the verification result.

[0033] Among them, the first MCU chip 203 may refer to an MCU chip located in the display device 20. There are multiple safety functions in the vehicle. For example, the ABS function is one of the multiple safety functions. The SOC chip 101 is a chip that can perform complex task processing compared to the MCU chip. The preset functional safety level may be a functional safety level that the split full liquid crystal combination instrument needs to meet, which is pre-set based on business requirements. For example, the preset functional safety level may refer to ASILB.

[0034] The first state information may refer to vehicle state information to be displayed on the LCD 204. For example, the first state information may include but is not limited to vehicle speed information, tire pressure information and / or ABS fault warning information. The video information may refer to information converted by the SOC chip 101 and used for display on the LCD 204.

[0035] Specifically, for the SOC chip 101 in the control device 10, the SOC chip 101 in the control device 10 can obtain the first state information to be displayed in the vehicle by a preset method of obtaining the first state information. For example, the SOC chip 101 in the control device 10 can obtain the first state information to be displayed in the vehicle through the whole vehicle network with a cycle of 10ms. Among them, the whole vehicle network can refer to Ethernet or CAN (Controller Area Network) bus. The SOC chip 101 in the control device 10 can process the received first state information and generate video information corresponding to the first state information, so that the liquid crystal display 204 can directly display based on the information. The SOC chip 101 in the control device 10 can send the video information to the serializer 102.

[0036] The preset acquisition method may refer to a method of obtaining the second state information related to the safety function in the vehicle that is pre-set based on business needs. For example, the preset acquisition method may refer to a method through the vehicle network. The vehicle network may refer to Ethernet or CAN bus. The second state information may refer to vehicle state information related to each safety function in the vehicle. For example, the second state information may include but is not limited to ABS fault alarm information.

[0037] Specifically, the serializer 102 in the control device 10 can perform serialization processing on the video information received from the SOC chip 101 in the control device 10, and send the serialized video information to the deserializer 201 in the display device 20, so that the deserializer 201 in the display device 20 can deserialize the received video information and send the deserialized video information to the video processing module 202 in the display device 20. The first MCU chip 203 in the display device 20 can obtain the second state information related to the safety function in the vehicle based on a preset acquisition method, and send the obtained second state information to the video processing module 202 in the display device 20.

[0038] The verification may be processed by a preset verification method. For example, the preset verification method may refer to a CRC verification. The verification result may refer to whether the current display information related to the safety function displayed by the liquid crystal display 204 is consistent with the second state information. Updating the display may refer to updating the current display information related to the safety function displayed by the liquid crystal display 204 to the second state information.

[0039] Specifically, with respect to the video processing module 202 in the display device 20, the video processing module 202 in the display device 20 can send the received video information to the liquid crystal display 204, so that the liquid crystal display 204 can display based on the video information, so that the driver can confirm the vehicle status through the content displayed by the liquid crystal display 204. The video processing module 202 in the display device 20 can verify the current display information related to the safety function displayed by the liquid crystal display 204 with the second state information through a preset verification method, and update and display the current display information based on the verification result. If the current display information related to the safety function displayed by the liquid crystal display 204 is consistent with the verification result of the second state information, the video processing module 202 does not need to perform any processing on the current display information related to the safety function displayed by the liquid crystal display 204. If the current display information related to the safety function displayed by the LCD display 204 is inconsistent with the verification result of the second state information, the video processing module 202 needs to update and display the current display information of the LCD display 204 according to the second state information, so that the current display information related to the safety function displayed by the LCD display 204 is consistent with the second state information, so as to ensure the accuracy of the display of the state information related to the safety function when the SOC chip 101 does not meet the preset functional safety level, thereby effectively ensuring the user's driving safety.

[0040] The technical solution of the embodiment of the present invention uses the SOC chip 101 in the control device 10 that does not meet the preset functional safety level to obtain the first state information to be displayed in the vehicle, and processes the first state information to generate video information corresponding to the first state information, and sends the video information to the serializer 102 in the control device 10; uses the serializer 102 in the control device 10 to string the video information, and sends the stringed video string information to the deserializer 201 in the display device 20; uses the deserializer 201 in the display device 20 to deserialize the video string information, and sends the deserialized video information to the video processing module 202 in the display device 20; the first MCU chip 203 in the display device 20 can obtain the second state information related to the safety function in the vehicle based on the preset acquisition method, and The second status information is sent to the video processing module 202 in the display device 20; the video processing module 202 in the display device 20 can be used to send the video information to the LCD display 204 in the display device 20 for display, and the current display information related to the safety function displayed by the LCD display 204 in the display device 20 is verified with the second status information, and the current display information is updated and displayed based on the verification result, so that the current display information related to the safety function displayed by the LCD display 204 in the display device 20 is consistent with the second status information, so as to achieve accurate display of the safety function by the LCD display 204, so that when the SOC chip 101 does not meet the preset functional safety level, the accuracy of the display of the status information related to the safety function can be guaranteed, thereby effectively ensuring the driving safety of the user.

[0041] On the basis of the above technical solution, the display device 20 further includes: an icon database. The icon database is connected to the video processing module 202 and is used to store display icons corresponding to the safety functions. The video processing module 202 is specifically used to: determine the target safety function whose current display information and second state information are inconsistent based on the verification result, and determine the target display icon corresponding to the target safety function from the icon database based on the second state information corresponding to the target safety function, and send the target display icon to the liquid crystal display 204, so that the liquid crystal display 204 updates and displays the current display information corresponding to the target safety function.

[0042] Among them, the icon database may refer to a database storing preset icons. Each preset icon in the icon database corresponds to a non-repetitive preset icon identifier. The verification result determines that the current display information and the second state information are inconsistent, which may refer to a situation where the icon needs to be displayed on the liquid crystal display 204 but is not displayed and / or a situation where the icon needs to be displayed on the liquid crystal display 204 but another icon is displayed and / or a situation where the icon is displayed without being displayed on the liquid crystal display 204. The target safety function may refer to a safety function for which the verification result is inconsistent and needs to be updated and displayed based on the verification result. The target display icon may refer to an icon that needs to be displayed on the liquid crystal display 204 corresponding to the target safety function.

[0043] Specifically, the video processing module 202 can determine the target safety function whose current display information and the second state information are inconsistent based on the verification result. If the icon needs to be displayed on the LCD 204 but is not displayed, the target display icon corresponding to the target safety function is determined from the icon database based on the second state information corresponding to the target safety function, and the target display icon is sent to the LCD 204, so that the LCD 204 updates and displays the current display information corresponding to the target safety function, so as to further ensure the accuracy of the display of the state information related to the safety function when the SOC chip 101 does not meet the preset functional safety level.

[0044] Exemplarily, the first MCU chip 203 is connected to the whole vehicle network; the first MCU chip 203 is specifically used to obtain the second state information related to the safety function in the vehicle through the connected whole vehicle network.

[0045] The vehicle network may refer to Ethernet or CAN bus.

[0046] Specifically, the first MCU chip 203 in the display device 20 can obtain the second status information related to the safety function in the vehicle through the connected vehicle network.

[0047] Embodiment 2

[0048] Figure 2 1 is a schematic diagram of the structure of a split full liquid crystal combination instrument provided by the second embodiment of the present invention. Based on the above embodiment, the second MCU chip 103 is added to the control device 10. Figure 2As shown, the control device 10 also includes: a second MCU chip 103. The second MCU chip 103 meets the preset functional safety level; the second MCU chip 103 is used to obtain the second state information related to the safety function in the vehicle through the connected vehicle network, and send the second state information to the first MCU chip 203 based on the preset sending method; the first MCU chip 203 is specifically used to: obtain the second state information in a preset receiving method matching the preset sending method.

[0049] Among them, the second MCU chip 103 can be an MCU chip located in the control device 10. The preset sending mode and the preset receiving mode are matched, and are used to send and receive the second state information. For example, the preset sending mode can be that the second MCU chip 103 in the control device 10 directly sends information to the first MCU chip 203 in the display device 20 through the CAN bus, then the matching preset receiving mode can be that the first MCU chip 203 in the display device 20 receives information through the CAN bus; the preset sending mode can also be that the second MCU chip 103 in the control device 10 sends information to the serializer 102 in the control device 10, and then the serializer 102 in the control device 10 sends the received information to the deserializer 201 in the display device 20, so that the deserializer 201 in the display device 20 sends the received information to the first MCU chip 203 in the display device 20.

[0050] Specifically, the second MCU chip 103 in the control device 10 can obtain second status information related to the safety function in the vehicle through the connected vehicle network, and based on a preset sending method, send the second status information to the first MCU chip 203 in the display device 20, so that the first MCU chip 203 in the display device 20 obtains the second status information through a preset receiving method that matches the preset sending method, so that the second status information can be accurately transmitted through the preset sending method, thereby ensuring the accuracy of the information received by the first MCU chip 203 in the display device 20.

[0051] For example, Figure 3 A structural schematic diagram of a split full-liquid crystal combination instrument is given. Figure 3As shown, the second MCU chip 103 is connected to the serializer 102 via an I2C (Inter-Integrated Circuit) bus; the deserializer 201 is connected to the first MCU chip 203 via the I2C bus; the second MCU chip 103 is specifically used to: obtain the second state information related to the safety function in the vehicle through the connected vehicle network, and generate an I2C signal corresponding to the second state information, and send the I2C signal to the serializer 102; the serializer 102 is also used to send the I2C signal to the deserializer 201; the deserializer 201 is also used to send the I2C signal to the first MCU chip 203; the first MCU chip 203 is specifically used to: perform signal analysis on the I2C signal to obtain the second state information.

[0052] Wherein, the I2C bus can be a multi-master bus, which can be used to replace the standard parallel bus to connect various integrated circuits and functional modules. The I2C bus can also be used to ensure real-time communication. The I2C signal is the second state information that can be transmitted through the I2C bus. Parsing can be a process of parsing the I2C signal into the second state information read by the first MCU chip 203 in the display device 20.

[0053] Specifically, the second MCU chip 103 in the control device 10 can obtain the second state information through the vehicle network, and convert the obtained second state information into an I2C signal corresponding to the second state information, so that the second MCU chip 103 in the control device 10 can send the I2C signal to the serializer 102 through the I2C bus. The serializer 102 sends the received I2C signal to the deserializer 201, so that the deserializer 201 can send the received I2C signal to the first MCU chip 203 in the display device 20. The first MCU chip 203 in the display device 20 can parse the received I2C signal into the second state information that can be read by the first MCU chip 203 in the display device 20, thereby ensuring the real-time and accuracy of information transmission.

[0054] For example, Figure 4 Another structural diagram of a split full-LCD instrument cluster is given. Figure 4As shown, the control device 10 also includes: a private network sending chip 104, which is connected to the second MCU chip 103, and the private network sending chip 104 meets the preset functional safety level; the display state also includes: a private network receiving chip 205, which is connected to the first MCU chip 203, and the private network receiving chip 205 meets the preset functional safety level; the second MCU chip 103 is used to obtain the second state information related to the safety function in the vehicle through the connected vehicle network, and send the second state information to the private network sending chip 104; the private network sending chip 104 is used to send the received second state information to the private network receiving chip 205; the private network receiving chip 205 is used to send the received second state information to the first MCU chip 203; the first MCU chip 203 is specifically used to: receive the second state information sent by the private network receiving chip 205.

[0055] The private network sending chip 104 may refer to a chip dedicated to sending the second state information to the second MCU chip 103 in the control device 10 through the network. For example, the private network sending chip 104 may be a private CAN network sending chip. The private network receiving chip 205 may refer to a chip dedicated to receiving information sent by the private network sending chip 104.

[0056] Specifically, the second MCU chip 103 in the control device 10 can obtain the second state information related to the safety function in the vehicle through the connected vehicle network, and send the second state information to the private network sending chip 104, so that the private network sending chip 104 can send the received second state information to the private network receiving chip 205; the private network receiving chip 205 only receives the data information sent by the private network sending chip 104, thereby ensuring the efficiency and accuracy of information transmission. The private network receiving chip 205 can send the received second state information to the first MCU chip 203 in the display device 20, so that the first MCU chip 203 in the display device 20 can receive the second state information sent by the private network receiving chip 205.

[0057] The technical solution of the embodiment of the present invention is to add a second MCU chip 103 in the control device 10, and use the second MCU chip 103 in the control device 10 to obtain the second state information related to the safety function in the vehicle through the connected vehicle network, and send the second state information to the first MCU chip 203 in the display device 20 based on a preset sending method, so that the first MCU chip 203 in the display device 20 obtains the second state information through a preset receiving method matching the preset sending method, so that the second state information can be accurately transmitted through the preset sending method, thereby ensuring that the first MCU chip 203 in the display device 20 The chip 203 receives the accuracy of the information and sends the second status information to the video processing module 202; the video processing module 202 in the display device 20 can send the video information to the LCD display 204 in the display device 20 for display, and the current display information related to the safety function displayed by the LCD display 204 in the display device 20 is verified with the second status information, and the current display information is updated and displayed based on the verification result, so that when the SOC chip 101 does not meet the preset functional safety level, the accuracy of the status information display related to the safety function can be guaranteed, thereby effectively ensuring the user's driving safety.

[0058] Based on the above technical solution, the display device 20 also includes: a power management module, which meets the preset functional safety level; the power management module is used to monitor the current power supply voltage of the first MCU chip 203 and the video processing module 202, and reinitialize when the current power supply voltage exceeds the operating voltage range.

[0059] The monitoring may be real-time monitoring. The initialization process may be a process for adjusting the power supply voltage corresponding to the first MCU chip 203 in the display device 20 and the video processing module 202 in the display device 20 to a voltage that meets the normal working voltage range.

[0060] Specifically, the display device 20 also includes a power management module that meets the preset functional safety level, which is used to monitor the current power supply voltage of the first MCU chip 203 in the display device 20 and the video processing module 202 in the display device 20, and reinitialize when the current power supply voltage exceeds the operating voltage range, thereby avoiding adverse consequences that may be caused by the current power supply voltage exceeding the operating voltage range, such as the video processing module 202 in the display device 20 burning out due to overvoltage operation, resulting in the display content in the liquid crystal display 204 in the display device 20 cannot be updated according to the vehicle status, thereby ensuring the normal operation of the display device 20, and further improving the accuracy and real-time performance of the display of safety functions by the liquid crystal display 204 in the display device 20.

[0061] Embodiment 3

[0062] Figure 5 The third embodiment of the present invention provides a flow chart of an information display method. The information display method provided in this embodiment can be applied to the information display on the instrument in the vehicle, especially the split full liquid crystal combination instrument. The split full liquid crystal combination instrument includes a display device and a control device. Figure 5 As shown, the information display method may include:

[0063] S310, obtaining first state information to be displayed in the vehicle through the SOC chip in the control device, processing the first state information, generating video information corresponding to the first state information, and sending the video information to the serializer in the control device.

[0064] Among them, the SOC chip is a chip that can perform complex task processing compared to the MCU chip. The first state information may refer to the vehicle state information to be displayed on the liquid crystal display. For example, the first state information may include but is not limited to vehicle speed information, tire pressure information and / or ABS fault alarm information. Video information may refer to information converted by the SOC chip for display on the liquid crystal display.

[0065] Specifically, the SOC chip in the control device can obtain the first state information to be displayed in the vehicle by a preset method of obtaining the first state information. For example, the SOC chip in the control device can obtain the first state information to be displayed in the vehicle through the vehicle network with a cycle of 10ms. Among them, the vehicle network can refer to Ethernet or CAN bus. The SOC chip in the control device can process the received first state information and generate video information corresponding to the first state information, so that the liquid crystal display can directly display based on the information. The SOC chip in the control device can send the video information to the serializer.

[0066] S320, serializing the video information through the serializer in the control device, and sending the serialized video information to the deserializer in the display device.

[0067] Specifically, the serializer in the control device can perform serialization processing on the video information received from the SOC chip in the control device, and send the serialized video information to the deserializer in the display device.

[0068] S330, deserialize the video encoding information through a deserializer in the display device, and send the deserialized video information to a video processing module in the display device.

[0069] Specifically, the deserializer in the display device may perform deserialization processing on the received video serialization information, and send the deserialized video information to the video processing module in the display device.

[0070] S340. Acquire second status information related to the safety function in the vehicle through the first MCU chip in the display device based on a preset acquisition method, and send the second status information to the video processing module in the display device.

[0071] Among them, the first MCU chip may refer to an MCU chip located in the display device. There are multiple safety functions in the vehicle. For example, the ABS function is one of the multiple safety functions. The preset acquisition method may refer to a method of obtaining the second state information related to the safety function in the vehicle that is pre-set based on business needs. For example, the preset acquisition method may refer to a method through the whole vehicle network. Among them, the whole vehicle network may refer to Ethernet or CAN bus. The second state information may refer to the vehicle state information related to each safety function in the vehicle. For example, the second state information may include but is not limited to ABS fault alarm information.

[0072] Specifically, the first MCU chip in the display device can obtain second status information related to the safety function in the vehicle based on a preset acquisition method, and send the obtained second status information to the video processing module in the display device.

[0073] Exemplarily, "obtaining second status information related to the safety function in the vehicle based on a preset acquisition method" may include: obtaining second status information related to the safety function in the vehicle based on the whole vehicle network connected by the first MCU chip.

[0074] The vehicle network may refer to Ethernet or CAN bus.

[0075] Specifically, the first MCU chip in the display device can obtain the second status information related to the safety function in the vehicle through the connected vehicle network.

[0076] S350. The video information is sent to the liquid crystal display in the display device for display through the video processing module in the display device, and the current display information related to the safety function displayed by the liquid crystal display is verified with the second state information, and the current display information is updated and displayed based on the verification result.

[0077] The verification may be processed by a preset verification method. For example, the preset verification method may refer to a CRC verification. The verification result may refer to whether the current display information related to the safety function displayed by the liquid crystal display is consistent with the second state information. Updating the display may refer to updating the current display information related to the safety function displayed by the liquid crystal display to the second state information.

[0078] Specifically, the video processing module in the display device can send the received video information to the liquid crystal display, so that the liquid crystal display is displayed based on the video information, so that the driver can confirm the vehicle status through the content displayed by the liquid crystal display. The video processing module in the display device can verify the current display information related to the safety function displayed by the liquid crystal display with the second state information through a preset verification method, and update and display the current display information based on the verification result. If the current display information related to the safety function displayed by the liquid crystal display is consistent with the verification result of the second state information, the video processing module does not need to do any processing on the current display information related to the safety function displayed by the liquid crystal display. If the current display information related to the safety function displayed by the liquid crystal display is inconsistent with the verification result of the second state information, the video processing module needs to update and display the current display information of the liquid crystal display according to the second state information, so that the current display information related to the safety function displayed by the liquid crystal display is consistent with the second state information, so as to ensure the accuracy of the display of the state information related to the safety function when the SOC chip does not meet the preset functional safety level, thereby effectively ensuring the driving safety of the user.

[0079] Exemplarily, "updating and displaying the current display information based on the verification result" may include: determining the target safety function whose current display information and second state information are inconsistent based on the verification result; determining the target display icon corresponding to the target safety function from the icon database based on the second state information corresponding to the target safety function; and sending the target display icon to the LCD display so that the LCD display updates and displays the current display information corresponding to the target safety function.

[0080] Among them, the icon database may refer to a database storing preset icons. Each preset icon in the icon database corresponds to a non-repetitive preset icon identifier. The verification result determines that the current display information and the second state information are inconsistent, which may refer to a situation where the icon needs to be displayed on the LCD display but is not displayed and / or a situation where the icon needs to be displayed on the LCD display but another icon is displayed and / or a situation where the icon is displayed without being displayed on the LCD display. The target safety function may refer to a safety function for which the verification result is inconsistent and needs to be updated and displayed based on the verification result. The target display icon may refer to an icon that needs to be displayed on the LCD display corresponding to the target safety function.

[0081] Specifically, the video processing module can determine the target safety function whose current display information and second state information are inconsistent based on the verification result. If the icon needs to be displayed on the LCD but is not displayed, the target display icon corresponding to the target safety function is determined from the icon database based on the second state information corresponding to the target safety function, and the target display icon is sent to the LCD so that the LCD updates and displays the current display information corresponding to the target safety function, so as to further ensure the accuracy of the display of the state information related to the safety function when the SOC chip does not meet the preset functional safety level.

[0082] According to the technical solution of the embodiment of the present invention, the SOC chip in the control device can obtain the first state information to be displayed in the vehicle, process the first state information, generate video information corresponding to the first state information, and send the video information to the serializer in the control device; the serializer in the control device can string the video information, and send the stringed video string information to the deserializer in the display device; the deserializer in the display device can deserialize the video string information, and send the deserialized video information to the video processing module in the display device; the first MCU chip in the display device can obtain the second state information related to the safety function in the vehicle based on a preset acquisition method, and send the second state information to the deserializer in the display device; The information is sent to the video processing module in the display device; the video processing module in the display device can send the video information to the liquid crystal display in the display device for display, and verify the current display information related to the safety function displayed by the liquid crystal display in the display device with the second state information, and update and display the current display information based on the verification result, so that the current display information related to the safety function displayed by the liquid crystal display in the display device is consistent with the second state information, so as to achieve accurate display of the safety function on the liquid crystal display, so that when the SOC chip does not meet the preset functional safety level, the accuracy of the display of the status information related to the safety function can be guaranteed, thereby effectively ensuring the driving safety of the user.

[0083] On the basis of the above technical solution, the control device also includes: a second MCU chip; wherein the second MCU chip meets the preset functional safety level; the method also includes: obtaining second status information related to the safety function in the vehicle based on the whole vehicle network connected by the second MCU chip; sending the second status information to the first MCU chip based on the preset sending method in the second MCU chip; obtaining the second status information based on the preset receiving method in the first MCU chip that matches the preset sending method.

[0084] Among them, the second MCU chip can be an MCU chip located in the control device. The preset sending mode and the preset receiving mode are matched, and are used to send and receive the second state information. For example, the preset sending mode can be that the second MCU chip in the control device directly sends information to the first MCU chip in the display device through the CAN bus, then the matching preset receiving mode can be that the first MCU chip in the display device receives information through the CAN bus; the preset sending mode can also be that the second MCU chip in the control device sends information to the serializer in the control device, and then the serializer in the control device sends the received information to the deserializer in the display device, so that the deserializer in the display device sends the received information to the first MCU chip in the display device.

[0085] Specifically, the second MCU chip in the control device can obtain second status information related to the safety function in the vehicle through the connected vehicle network, and send the second status information to the first MCU chip in the display device based on a preset sending method, so that the first MCU chip in the display device obtains the second status information through a preset receiving method that matches the preset sending method, so that the second status information can be accurately transmitted through the preset sending method, thereby ensuring the accuracy of the information received by the first MCU chip in the display device.

[0086] Exemplarily, "based on a preset sending method, sending the second state information to the first MCU chip; the first MCU chip, based on a preset receiving method matching the preset sending method, obtaining the second state information" may include: based on the second MCU chip obtaining the second state information related to the safety function in the vehicle through the connected vehicle network; based on the second MCU chip generating an I2C signal corresponding to the second state information; based on the second MCU chip sending the I2C signal to the serializer through the I2C bus; wherein the second MCU chip is connected to the serializer through the I2C bus; the deserializer is connected to the first MCU chip through the I2C bus; the serializer is also used to send the I2C signal to the deserializer; the deserializer is also used to send the I2C signal to the first MCU chip; the first MCU chip is also used to perform signal analysis on the I2C signal to obtain the second state information.

[0087] The I2C bus may be a multi-master bus, which may be used to replace a standard parallel bus to connect various integrated circuits and functional modules. The I2C bus may also be used to ensure real-time communication. The I2C signal is second state information that may be transmitted via the I2C bus. Parsing may be a process of parsing the I2C signal into second state information read by a first MCU chip in a display device.

[0088] Specifically, the second MCU chip in the control device can obtain the second state information through the vehicle network, and convert the obtained second state information into an I2C signal corresponding to the second state information, so that the second MCU chip in the control device can send the I2C signal to the serializer through the I2C bus. The serializer sends the received I2C signal to the deserializer, so that the deserializer can send the received I2C signal to the first MCU chip in the display device. The first MCU chip in the display device can parse the received I2C signal into the second state information that can be read by the first MCU chip in the display device, thereby ensuring the real-time and accuracy of information transmission.

[0089] Exemplarily, the control device also includes: a private network sending chip; wherein the private network sending chip is connected to the second MCU chip, and the private network sending chip meets the preset functional safety level; the display state also includes: a private network receiving chip; wherein the private network receiving chip is connected to the first MCU chip, and the private network receiving chip meets the preset functional safety level; based on the second MCU chip through the connected vehicle network, the second state information related to the safety function in the vehicle is obtained, and the second state information is sent to the private network sending chip; based on the private network sending chip, the received second state information is sent to the private network receiving chip; based on the private network receiving chip, the received second state information is sent to the first MCU chip; based on the first MCU chip, the second state information sent by the private network receiving chip is received.

[0090] The private network sending chip may refer to a chip dedicated to sending the second state information to the second MCU chip in the control device through the network. For example, the private network sending chip may be a private CAN network sending chip. The private network receiving chip may refer to a chip dedicated to receiving information sent by the private network sending chip.

[0091] Specifically, the second MCU chip in the control device can obtain the second state information related to the safety function in the vehicle through the connected vehicle network, and send the second state information to the private network sending chip, so that the private network sending chip can send the received second state information to the private network receiving chip; the private network receiving chip only receives the data information sent by the private network sending chip, thereby ensuring the efficiency and accuracy of information transmission. The private network receiving chip can send the received second state information to the first MCU chip in the display device, so that the first MCU chip in the display device can receive the second state information sent by the private network receiving chip.

[0092] Based on the above technical solution, the display device also includes: a power management module; wherein the power management module meets the preset functional safety level; based on the power management module, the current power supply voltage of the first MCU chip and the video processing module is monitored; based on the monitoring results, reinitialization processing is performed when the current power supply voltage exceeds the operating voltage range.

[0093] The monitoring may be real-time monitoring. The initialization process may be a process for adjusting the power supply voltage corresponding to the first MCU chip in the display device and the video processing module in the display device to a voltage that meets the normal working voltage range.

[0094] Specifically, the display device also includes a power management module that meets the preset functional safety level, which is used to monitor the current power supply voltage of the first MCU chip in the display device and the video processing module in the display device, and reinitialize when the current power supply voltage exceeds the operating voltage range, thereby avoiding adverse consequences that may be caused by the current power supply voltage exceeding the operating voltage range, such as the video processing module in the display device being burned out due to overvoltage operation, resulting in the display content on the LCD display in the display device being unable to be updated according to the vehicle status, thereby ensuring the normal operation of the display device, and further improving the accuracy and real-time performance of the LCD display in the display device in displaying safety functions.

[0095] Embodiment 4

[0096] Figure 6 It is a structural schematic diagram of a vehicle provided in the fourth embodiment of the present invention. The vehicle may include a split full liquid crystal combination instrument 40. Among them, the split full liquid crystal combination instrument 40 may be a split full liquid crystal combination instrument provided in any of the above embodiments, and is used to execute the information display method provided in any of the above embodiments. For example, the split full liquid crystal combination instrument 40 may include: a display device and a control device; wherein the display device includes: a deserializer, a first MCU chip, a video processing module and a liquid crystal display; the control device includes: a SOC chip and a serializer.

[0097] Among them, the deserializer, the first MCU chip, the video processing module and the serializer all meet the preset functional safety level, and the SOC chip does not meet the preset functional safety level; among them, the SOC chip is used to obtain the first state information to be displayed in the vehicle, and process the first state information, generate video information corresponding to the first state information, and send the video information to the serializer; the serializer is used to string the video information, and send the stringed video string information to the deserializer; the deserializer is used to deserialize the video string information, and send the deserialized video information to the video processing module; the first MCU chip is used to obtain the second state information related to the safety function in the vehicle based on a preset acquisition method, and send the second state information to the video processing module; the video processing module is used to send the video information to the LCD display for display, and verify the current display information related to the safety function displayed by the LCD display with the second state information, and update and display the current display information based on the verification result.

[0098] The technical solution of the embodiment of the present invention uses the SOC chip in the control device that does not meet the preset functional safety level to obtain the first state information to be displayed in the vehicle, and processes the first state information to generate video information corresponding to the first state information, and sends the video information to the serializer in the control device; uses the serializer in the control device to string the video information, and sends the stringed video string information to the deserializer in the display device; uses the deserializer in the display device to deserialize the video string information, and sends the deserialized video information to the video processing module in the display device; the first MCU chip in the display device can obtain the second state information related to the safety function in the vehicle based on the preset acquisition method, and send the first state information to the video processing module in the display device; The second state information is sent to the video processing module in the display device; the video processing module in the display device can be used to send the video information to the liquid crystal display in the display device for display, and the current display information related to the safety function displayed by the liquid crystal display in the display device is verified with the second state information, and the current display information is updated and displayed based on the verification result, so that the current display information related to the safety function displayed by the liquid crystal display in the display device is consistent with the second state information, so as to achieve accurate display of the safety function on the liquid crystal display, so that when the SOC chip does not meet the preset functional safety level, the accuracy of the display of the state information related to the safety function can be guaranteed, thereby effectively ensuring the driving safety of the user.

[0099] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0100] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A split full liquid crystal combination instrument, characterized in that: The instrument comprises: a display device and a control device, wherein the display device comprises: a deserializer, a first MCU chip, a video processing module and a liquid crystal display; the control device comprises: a SOC chip and a serializer; Wherein, the deserializer, the first MCU chip, the video processing module and the serializer all meet the preset functional safety level, and the SOC chip does not meet the preset functional safety level; Wherein, The SOC chip is used to obtain first state information to be displayed in the vehicle, process the first state information, generate video information corresponding to the first state information, and send the video information to the serializer; The serializer is used to string the video information and send the stringed video information to the deserializer; The deserializer is used to deserialize the video string information and send the deserialized video information to the video processing module; The first MCU chip is used to obtain second state information related to the safety function in the vehicle based on a preset acquisition method, and send the second state information to the video processing module; The video processing module is used to send the video information to the liquid crystal display for display, and verify the current display information related to the safety function displayed by the liquid crystal display with the second state information, and update and display the current display information based on the verification result; Wherein, the display device further comprises: an icon database, the icon database is connected to the video processing module and is used to store display icons corresponding to safety functions; The video processing module is specifically used to: determine the target safety function whose current display information and second status information are inconsistent based on the verification result, and based on the second status information corresponding to the target safety function, determine the target display icon corresponding to the target safety function from the icon database, and send the target display icon to the LCD display, so that the LCD display updates and displays the current display information corresponding to the target safety function.

2. The split type full liquid crystal combination instrument according to claim 1, characterized in that: The first MCU chip is connected to the vehicle network; The first MCU chip is specifically used to obtain second status information related to the safety function in the vehicle through the connected vehicle network.

3. The split type full liquid crystal combination instrument according to claim 1, characterized in that: The control device further includes: a second MCU chip, wherein the second MCU chip meets a preset functional safety level; The second MCU chip is used to obtain second status information related to the safety function in the vehicle through the connected vehicle network, and send the second status information to the first MCU chip based on a preset sending method; The first MCU chip is specifically used to obtain the second state information in a preset receiving mode that matches the preset sending mode.

4. The split type full liquid crystal combination instrument according to claim 3, characterized in that: The second MCU chip is connected to the serializer via an I2C bus; the deserializer is connected to the first MCU chip via an I2C bus; The second MCU chip is specifically used to: obtain second state information related to the safety function in the vehicle through the connected vehicle network, generate an I2C signal corresponding to the second state information, and send the I2C signal to the serializer; The serializer is also used to send the I2C signal to the deserializer; The deserializer is also used to send the I2C signal to the first MCU chip; The first MCU chip is specifically used to: perform signal analysis on the I2C signal to obtain the second status information.

5. The split type full liquid crystal combination instrument according to claim 3, characterized in that: The control device further includes: a private network sending chip, the private network sending chip is connected to the second MCU chip, and the private network sending chip meets a preset functional safety level; The display device further includes: a private network receiving chip, the private network receiving chip is connected to the first MCU chip, and the private network receiving chip meets a preset functional safety level; The second MCU chip is used to obtain second status information related to the safety function in the vehicle through the connected vehicle network, and send the second status information to the private network sending chip; The private network sending chip is used to send the received second state information to the private network receiving chip; The private network receiving chip is used to send the received second state information to the first MCU chip; The first MCU chip is specifically used to: receive the second status information sent by the private network receiving chip.

6. The split-type full liquid crystal combination instrument according to any one of claims 1 to 5, characterized in that: The display device further includes: a power management module, the power management module meeting a preset functional safety level; The power management module is used to monitor the current power supply voltage of the first MCU chip and the video processing module, and perform reinitialization processing when the current power supply voltage exceeds the operating voltage range.

7. An information display method, characterized in that: Applied to a split full liquid crystal combination instrument, the split full liquid crystal combination instrument includes a display device and a control device, and the method includes: Acquire first state information to be displayed in the vehicle through the SOC chip in the control device, process the first state information, generate video information corresponding to the first state information, and send the video information to the serializer in the control device; The video information is serialized by the serializer in the control device, and the serialized video information is sent to the deserializer in the display device; Deserializing the video string information through a deserializer in the display device, and sending the deserialized video information to a video processing module in the display device; Acquire second state information related to the safety function in the vehicle through the first MCU chip in the display device based on a preset acquisition method, and send the second state information to a video processing module in the display device; The video information is sent to a liquid crystal display in the display device for display through a video processing module in the display device, and the current display information related to the safety function displayed by the liquid crystal display is verified with the second state information, and the current display information is updated and displayed based on the verification result; The updating and displaying of the current display information based on the verification result includes: Determine, based on the verification result, a target security function that the current display information and the second state information are inconsistent; Based on the second state information corresponding to the target safety function, determining a target display icon corresponding to the target safety function from an icon database; The target display icon is sent to the liquid crystal display so that the liquid crystal display updates and displays the current display information corresponding to the target safety function.

8. A vehicle, characterized in that: The vehicle includes the split-type full liquid crystal combination instrument as described in any one of claims 1-6.

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