Vehicle-mounted display module and abnormity monitoring method thereof

Abstract

The invention provides a vehicle-mounted display module and an abnormity monitoring method thereof, and relates to the technical field of display, and the vehicle-mounted display module comprises a signal transmitting end, a transmission wire harness, a signal receiving end, an abnormity detection unit, an abnormity identification unit, and a feedback transmission wire. The signal transmitting end and the signal receiving end are communicated through the transmission wire harness; the transmission wire harness at least comprises two sub transmission wires; the anomaly detection unit comprises sub-detection units, and the sub-transmission lines are in one-to-one correspondence with the sub-detection units; the abnormity detection unit is used for monitoring abnormity of the transmission wire harness; the abnormity identification unit is used for identifying the abnormal sub-transmission line. According to the vehicle-mounted display module provided by the invention, the two transmission paths are formed between the signal transmitting end and the signal receiving end, and the two transmission paths are respectively provided with the sub-detection units for monitoring the abnormity, so that the normal transmission paths can be switched in time, the signal transmission abnormity phenomenon can be reduced, and the user experience can be improved. And the occurrence of abnormal display conditions of the vehicle-mounted display module is reduced.

Description

Technical Field

[0001] The present disclosure relates to the field of display technology, and in particular to a vehicle-mounted display module and an abnormality monitoring method thereof. Background Art

[0002] With the development of in-vehicle technology, in-vehicle display screens are increasingly used in vehicles. In some in-vehicle display architectures, signal transmission needs to pass through components such as wiring harnesses, connectors, common-mode inductors, and capacitors. During vehicle operation or signal transmission, it is very likely that the entire signal link will be broken, resulting in display abnormalities.

[0003] Therefore, how to improve the abnormal problem of in-vehicle display has become one of the technical problems that need to be solved urgently at this stage. Summary of the invention

[0004] In order to solve the above technical problems, the present disclosure provides a vehicle-mounted display module and an abnormality monitoring method thereof, so as to improve the vehicle-mounted display abnormality problem.

[0005] In a first aspect, the present disclosure provides a vehicle-mounted display module, including a signal transmitting end, a transmission harness, a signal receiving end, an abnormality detection unit, an abnormality identification unit, and a feedback transmission line;

[0006] The signal transmitting end and the signal receiving end are connected to two ends of the transmission line bundle and communicate through the transmission line bundle; the abnormality detection unit is connected to the transmission line bundle and the abnormality identification unit respectively; the abnormality identification unit feeds back a signal to the signal transmitting end through the feedback transmission line;

[0007] The transmission line bundle includes at least two sub-transmission lines; the abnormality detection unit includes a sub-detection unit, and the sub-transmission lines correspond to the sub-detection units one by one;

[0008] The abnormality detection unit is used to monitor the abnormality of the transmission line bundle; the abnormality identification unit is used to identify the sub-transmission line with abnormality.

[0009] In a second aspect, based on the same inventive concept, the present disclosure further provides a method for monitoring an abnormality of a vehicle-mounted display module, comprising:

[0010] The signal transmitting end transmits a signal to the signal receiving end through a transmission line bundle, wherein the transmission line bundle includes at least two sub-transmission lines;

[0011] The abnormality detection unit monitors whether the sub-transmission line transmits signals normally, and the abnormality detection unit includes sub-detection units, and each sub-transmission line corresponds to one sub-detection unit for monitoring;

[0012] When the transmission signal of the transmission line bundle is detected to be abnormal, the sub-detection unit reports the abnormality of the sub-transmission line to the abnormality identification unit;

[0013] The abnormality identification unit identifies the abnormal sub-transmission line and feeds back the identification result to the signal sending end.

[0014] Compared with the prior art, the technical solution provided by the embodiments of the present disclosure has the following advantages:

[0015] The present disclosure provides a vehicle-mounted display module and an abnormality monitoring method thereof, wherein the vehicle-mounted display module includes a signal sending end, a transmission harness, a signal receiving end, an abnormality detection unit, an abnormality identification unit, and a feedback transmission line; the signal sending end and the signal receiving end are connected to two ends of the transmission harness and communicate through the transmission harness; the abnormality detection unit is respectively connected to the transmission harness and the abnormality identification unit; the abnormality identification unit feeds back a signal to the signal sending end through the feedback transmission line; the transmission harness includes at least two sub-transmission lines; the abnormality detection unit includes sub-detection units, and the sub-transmission lines correspond to the sub-detection units one by one; the abnormality detection unit is used to monitor the abnormality of the transmission harness; and the abnormality identification unit is used to identify the sub-transmission line with an abnormality. The vehicle-mounted display module provided by the present disclosure transmits signals by setting a transmission harness between a signal sending end and a signal receiving end. The transmission harness includes at least two sub-transmission lines, that is, two transmission paths are formed between the signal sending end and the signal receiving end. At the same time, sub-detection units are respectively set for the two sub-transmission lines to monitor abnormalities. The abnormal transmission path is identified by the abnormal identification unit, so that the normal transmission path is selected to transmit the signal. This is conducive to timely switching of the normal transmission path, thereby helping to reduce signal transmission abnormalities, and further helping to reduce the occurrence of abnormal display conditions of the vehicle-mounted display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 Shown is a schematic diagram of a vehicle-mounted display module provided by an embodiment of the present disclosure;

[0019] Figure 2 Shown is a schematic diagram of another vehicle-mounted display module provided by an embodiment of the present disclosure;

[0020] Figure 3 FIG. 1 is a schematic diagram of another vehicle-mounted display module provided by an embodiment of the present disclosure;

[0021] Figure 4 FIG. 1 is a schematic diagram of another vehicle-mounted display module provided by an embodiment of the present disclosure;

[0022] Figure 5 FIG. 1 is a schematic diagram of another vehicle-mounted display module provided by an embodiment of the present disclosure;

[0023] Figure 6 FIG. 1 is a schematic diagram of another vehicle-mounted display module provided by an embodiment of the present disclosure;

[0024] Figure 7 FIG. 1 is a flow chart of an abnormality monitoring method for a vehicle-mounted display module provided by an embodiment of the present disclosure;

[0025] Figure 8 FIG. 1 is a flow chart of another abnormality monitoring method for a vehicle-mounted display module provided by an embodiment of the present disclosure;

[0026] Fig. 9 Shown is a schematic diagram of an abnormal situation provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0029] The inventors discovered during their research that in some vehicle-mounted display architectures, signal transmission needs to pass through components such as wiring harnesses, connectors, common-mode inductors and capacitors. During vehicle operation or signal transmission, it is very likely that the entire signal link will be broken, resulting in display abnormalities.

[0030] Therefore, how to improve the abnormal problem of in-vehicle display has become one of the technical problems that need to be solved urgently at this stage.

[0031] In order to solve the above technical problems, the present disclosure provides a vehicle-mounted display module and an abnormality monitoring method thereof, so as to improve the vehicle-mounted display abnormality problem.

[0032] Figure 1 FIG. 1 is a schematic diagram of a vehicle display module provided by an embodiment of the present disclosure. Please refer to FIG. Figure 1 , the present disclosure provides a vehicle-mounted display module 100, including a signal transmitting end 10, a transmission harness 20, a signal receiving end 30, an abnormality detection unit 40, an abnormality identification unit 50, and a feedback transmission line 60;

[0033] The signal transmitting end 10 and the signal receiving end 30 are connected to the two ends of the transmission harness 20, and communicate through the transmission harness 20; the abnormality detection unit 40 is connected to the transmission harness 20 and the abnormality identification unit 50 respectively; the abnormality identification unit 50 feeds back a signal to the signal transmitting end 10 through the feedback transmission line 60;

[0034] The transmission line bundle 20 includes at least two sub-transmission lines 21; the abnormality detection unit 40 includes sub-detection units 41, and the sub-transmission lines 21 correspond to the sub-detection units 41 one by one;

[0035] The abnormality detection unit 40 is used to monitor the abnormality of the transmission line bundle 20; and the abnormality identification unit 50 is used to identify the sub-transmission line 21 having the abnormality.

[0036] Specifically, the present disclosure provides a vehicle-mounted display module 100, which includes a signal transmitting end 10 and a signal receiving end 30. Exemplarily, the signal transmitting end 10 can be a vehicle control unit (VCU). It should be noted that the vehicle control unit is the core control component of the car, which is responsible for coordinating and managing the work of various systems of the vehicle. The present disclosure only takes the signal transmitting end 10 as an example of a vehicle control unit, but is not limited to this. It can also be other devices that send signals. Optionally, the signal receiving end 30 can be a vehicle-mounted display screen. Signals are transmitted between the signal transmitting end 10 and the signal receiving end 30 through a transmission harness 20, such as transmitting video or control signals. The inventor found in the study that when transmitting signals between the signal transmitting end 10 and the signal receiving end 30, they will pass through multiple devices such as common-mode inductors, capacitors, connectors, and harnesses. Any of the device disconnections will cause the signal transmission between the signal transmitting end 10 and the signal receiving end 30 to fail. Therefore, in the vehicle display module 100 provided by the present disclosure, the transmission line bundle 20 between the signal sending end 10 and the signal receiving end 30 includes at least two sub-transmission lines 21, and an abnormality detection unit 40 is provided to monitor the transmission line bundle 20 for abnormalities. The abnormality detection unit 40 includes a sub-detection unit 41, and the sub-detection unit 41 corresponds to the sub-transmission line 21 one by one, that is, one sub-transmission line 21 corresponds to one sub-detection unit 41, and the sub-transmission line 21 is monitored for abnormalities through the sub-detection unit 41. One end of the sub-detection unit 41 is connected to the sub-transmission line 21, and the other end is connected to the abnormality identification unit 50. The abnormal sub-transmission line 21 is identified by the abnormality identification unit 50, so as to facilitate the selection of the transmission path where the normal sub-transmission line 21 is located to transmit the signal. In this way, it is conducive to timely switching the normal transmission path, thereby facilitating the reduction of signal transmission abnormalities, and further facilitating the reduction of the occurrence of abnormal display conditions of the vehicle display module 100.

[0037] Figure 2 FIG. 1 is a schematic diagram of another vehicle-mounted display module provided by an embodiment of the present disclosure. Please refer to FIG. Figure 2 The present disclosure provides an optional implementation mode in which the sub-transmission line 21 is a twisted pair. It should be noted that the twisted pair is composed of two conductors. Therefore, when the sub-detection unit 41 monitors the sub-transmission line 21, two connecting lines are included between a sub-detection unit 41 and a sub-transmission line 21. The present application is only described by this example and is not limited thereto. For example, the sub-transmission line 21 can also be other structures such as a coaxial cable.

[0038] Figure 3 FIG. 1 is a schematic diagram of another vehicle display module provided by an embodiment of the present disclosure, please refer to FIG. Figure 1 and Figure 3The present disclosure provides an optional implementation mode, in which the sub-detection unit 41 is a voltage comparator, which identifies the abnormality of the sub-transmission line 21 by monitoring the voltage of the sub-transmission line 21. The voltage comparator includes two input ports, one input port is connected to the sub-transmission line 21, and the other input port is connected to a fixed voltage source, and the output end is connected to the abnormality identification unit 50. The abnormality identification unit 50 includes a GPIO (General-Purpose Input / Output) port, and the output end of the voltage comparator is connected to the GPIO port of the abnormality identification unit 50. The voltage comparators corresponding to different sub-transmission lines 21 are connected to different GPIO ports. The abnormality identification unit 50 identifies the sub-transmission line 21 with abnormal voltage through the port number of the GPIO port, so as to facilitate the selection of the transmission path where the normal sub-transmission line 21 is located to transmit the signal. In this way, it is conducive to timely switching the normal transmission path, thereby facilitating the reduction of signal transmission abnormalities, and further facilitating the reduction of the occurrence of abnormal display of the vehicle-mounted display module 100.

[0039] It should be noted that Figure 4 FIG. 1 is a schematic diagram of another vehicle-mounted display module provided by an embodiment of the present disclosure. Please refer to FIG. Figure 4 The transmission harness 20 includes two sub-transmission lines 21, and the sub-transmission lines 21 are twisted pairs (only two straight lines are used in the figure to represent the twisted pairs as a schematic diagram, and do not represent their actual structure). The twisted pairs have a high transmission rate and strong anti-interference ability, which is conducive to improving the signal transmission rate and anti-interference ability of the vehicle display module 100. The twisted pair is two wires. Therefore, when the sub-transmission line 21 is a twisted pair and the sub-detection unit 41 is a voltage comparator, each sub-transmission line 21 corresponds to two voltage comparators, that is, the transmission harness 20 and the abnormality identification unit 50 include four voltage comparators. In this way, the two twisted pairs correspond to four voltage comparators, and each wire in the twisted pair corresponds to a voltage comparator, which is conducive to timely detection of the abnormality of each wire in the twisted pair. The output end of the voltage comparator is connected to the GPIO port of the abnormality identification unit 50, and the sub-transmission line 21 with abnormal voltage is identified through the port number of the GPIO port.

[0040] It should also be noted that the feedback transmission line 60 is used to transmit the feedback signal sent by the abnormality identification unit 50. Exemplarily, the feedback transmission line 60 can be a signal communication method such as CAN (Controller Area Network) and I2C (Inter-Integrated Circuit).

[0041] Figure 5 FIG. 1 is a schematic diagram of another vehicle-mounted display module provided by an embodiment of the present disclosure. Please refer to FIG. Figure 5In one embodiment of the present disclosure, the signal sending end 10 includes a control module 11; the control module 11 is configured to receive a feedback signal sent by the abnormality identification unit 50, and select a signal transmission path according to the feedback signal.

[0042] Specifically, the signal transmitting end 10 and the signal receiving end 30 transmit signals through the transmission harness 20, the abnormality detection unit 40 connects the transmission harness 20 and the abnormality identification unit 50, and transmits the abnormality of the transmission harness 20 to the abnormality identification unit 50. After the abnormality identification unit 50 identifies the abnormal sub-transmission line 21, it is fed back to the signal transmitting end 10 through the feedback transmission line 60. The control module 11 in the signal transmitting end 10 receives the feedback signal fed back by the abnormality identification unit 50, obtains the transmission path where the abnormality occurs according to the feedback signal, and then selects the normal transmission path to transmit the signal. Exemplarily, the control module 11 is a system-on-chip (SOC), also known as a system on chip, which is an integrated circuit with a dedicated target, which contains all the contents of a complete system and embedded software. It should be noted that the present disclosure is only described by taking the control module 11 as a system-on-chip as an example, and is not limited to this.

[0043] Figure 6 FIG. 1 is a schematic diagram of another vehicle-mounted display module provided by an embodiment of the present disclosure. Please refer to FIG. Figure 6 In one embodiment of the present disclosure, the signal receiving end 30 includes N stages of sub-receiving ends 31 connected in series, the abnormality detection unit 40 includes N stages of sub-detection unit groups 401, each stage of sub-detection unit group 401 includes at least two sub-detection units 41, the abnormality identification unit 50 includes N stages of sub-identification units 51, and the feedback transmission line 60 includes N stages of sub-feedback lines 61, N≥2, and N is an integer;

[0044] From the second-stage sub-receiving terminal 31, each stage sub-receiving terminal 31 is connected to the previous stage sub-receiving terminal 31 through at least two sub-transmission lines 21, and the sub-transmission line 21 between the N-th stage sub-receiving terminal 31 and the N-1-th stage sub-receiving terminal 31 corresponds one-to-one to the sub-detection unit 41 in the N-th stage sub-detection unit group 401;

[0045] The Nth-level sub-identification unit 51 is connected to the Nth-level sub-detection unit 41;

[0046] The Nth-stage sub-feedback line 61 connects the Nth-stage sub-identification unit 51 and the N−1th-stage sub-identification unit 51 .

[0047] Specifically, the signal receiving terminal 30 of the vehicle display module 100 provided in this embodiment includes N-stage serially connected sub-receiving terminals 31. It should be noted that the sub-receiving terminal 31 directly connected to the signal transmitting terminal 10 is the first-stage sub-receiving terminal 31. Here, "directly connected" means that no other sub-receiving terminals 31 are included between the signal transmitting terminal 10 and the sub-receiving terminal 31. From the second-stage sub-receiving terminal 31, each stage of the sub-receiving terminal 31 is connected to the previous stage of the sub-receiving terminal 31 through at least two sub-transmission lines 21. For example, the second-stage sub-receiving terminal 31 is connected to the first-stage sub-receiving terminal 31 through two sub-transmission lines 21, and the third-stage sub-receiving terminal 31 is connected to the second-stage sub-receiving terminal 31 through two sub-transmission lines 21, and so on. A sub-transmission line 21 and a sub-detection unit group 401 are included between two adjacent sub-receiving terminals 31. The sub-transmission line 21 between the N-th sub-receiving terminal 31 and the N-1-th sub-receiving terminal 31 corresponds one-to-one to the sub-detection unit 41 in the N-th sub-detection unit group 401. Exemplarily, the sub-transmission line 21 between the second-level sub-receiving terminal 31 and the first-level sub-receiving terminal 31 corresponds one-to-one to the sub-detection unit 41 in the second-level sub-detection unit group 401; the sub-transmission line 21 between the third-level sub-receiving terminal 31 and the second-level sub-receiving terminal 31 corresponds one-to-one to the sub-detection unit 41 in the third-level sub-detection unit group 401. The abnormality identification unit 50 includes N-level sub-identification units 51, the feedback transmission line 60 includes N-level sub-feedback lines 61, the N-th sub-identification unit 51 is connected to the N-th sub-detection unit 41, the N-th sub-feedback line 61 connects the N-th sub-identification unit 51 and the N-1-th sub-identification unit 51, illustratively, the second-level sub-identification unit 51 is connected to the second-level sub-detection unit 41, and the second-level sub-feedback line 61 connects the second-level sub-identification unit 51 and the first-level sub-identification unit 51.

[0048] In one embodiment of the present disclosure, the second-level sub-detection unit group 401 monitors the sub-transmission line 21 between the second-level sub-receiving terminal 31 and the first-level sub-receiving terminal 31. There are two sub-transmission lines 21 between the second-level sub-receiving terminal 31 and the first-level sub-receiving terminal 31. The second-level sub-detection unit group 401 includes two sub-detection units 41, which correspond to the sub-transmission lines 21 one by one. When the second-level sub-detection unit group 401 detects that the sub-transmission line 21 between the second-level sub-receiving terminal 31 and the first-level sub-receiving terminal 31 is abnormal, it feeds back to the second-level sub-identification unit 51, and the second-level sub-identification unit 51 generates an abnormal signal. The identification unit 51 feeds back to the first-level sub-identification unit 51 through the second-level sub-feedback line 61, and the first-level sub-identification unit 51 feeds back to the signal sending end 10 through the first-level sub-feedback line 61. In this way, the sub-identification unit 51 identifies the abnormal sub-transmission line 21 and feeds back to the signal sending end 10, which is beneficial for the signal sending end 10 to select the transmission path where the normal sub-transmission line 21 is located to transmit the signal. In this way, it is beneficial to switch the normal transmission path in time, thereby helping to reduce signal transmission abnormalities, and further helping to reduce the occurrence of abnormal display conditions of the vehicle-mounted display module 100.

[0049] It should be noted that this disclosure Figure 6 The illustrated embodiment is merely described by taking as an example that the signal receiving end 30 includes three stages of sub-receiving ends 31 connected in series, the abnormality detection unit 40 includes three stages of sub-detection unit groups 401, the abnormality identification unit 50 includes three stages of sub-identification units 51, and the feedback transmission line 60 includes three stages of feedback transmission lines 60, but the invention is not limited thereto.

[0050] Please continue to refer to Figure 6 In one embodiment of the present disclosure, the first-level sub-receiving terminal 31 is connected to the signal transmitting terminal 10, the first-level sub-detection unit group 401 is connected to the transmission line bundle 20 between the signal transmitting terminal 10 and the first-level sub-receiving terminal 31, and the first-level sub-identification unit 51 is connected to the first-level sub-detection unit group 401 and the first-level sub-feedback line 61.

[0051] Specifically, the signal receiving end 30 includes N-level sub-receiving ends 31, the abnormality detection unit 40 includes N-level sub-detection unit groups 401, each sub-detection unit group 401 includes at least two sub-detection units 41, the abnormality identification unit 50 includes N-level sub-identification units 51, and the feedback transmission line 60 includes N-level sub-feedback lines 61, N≥2, and N is an integer. In other words, the signal receiving terminal 30 includes two or more sub-receiving terminals 31, each of which is connected in series. The sub-receiving terminal 31 connected to the signal sending terminal 10 through the transmission harness 20 is the first-level sub-receiving terminal 31. The first-level sub-detection unit group 401 monitors the transmission harness 20 between the first-level sub-receiving terminal 31 and the signal sending terminal 10. When an abnormality is detected, the first-level sub-detection unit group 401 feeds back to the first-level sub-identification unit 51, and the first-level sub-identification unit 51 feeds back to the signal sending terminal 10 through the first-level sub-feedback line 61. The signal sending terminal 10 selects a normal transmission path for signal transmission based on the feedback signal. This is conducive to timely switching of the normal transmission path, thereby helping to reduce signal transmission abnormalities, and further helping to reduce the occurrence of abnormal display conditions of the vehicle display module 100.

[0052] It should be noted that in the embodiment of the present disclosure, when the signal receiving terminal 30 includes multiple sub-receiving terminals 31, the sub-receiving terminals 31 are arranged in series. For example, the vehicle display module 100 is a FIDM (Fully Integrated Display Module), that is, it includes multiple sub-display modules, and the sub-display modules are equivalent to the sub-receiving terminals 31 in the present disclosure. Multiple sub-receiving terminals 31 are connected in series. In this way, the first-level sub-receiving terminal 31 is directly connected to the signal transmitting terminal 10, and the other sub-receiving terminals 31 are connected to the previous-level sub-receiving terminals 31. Only two output interfaces for the signal receiving terminal 30 need to be set at the signal transmitting terminal 10, which reduces the number of interfaces of the signal transmitting terminal 10 and is conducive to reducing the volume of the signal transmitting terminal 10. In one embodiment of the present disclosure, the signal transmitting terminal 10 includes a serializer, which is configured to set the data type transmitted by the sub-transmission line 21, and the signal receiving terminal 30 includes a deserializer, which is configured to process the data transmitted by the transmission line bundle 20. Specifically, when sending a signal, the signal transmitting end 10 sets the data type of each sub-transmission line 21 through the serializer, and sends the data that needs to be sent to each sub-receiving end 31 in a unified manner. Each sub-receiving end 31 includes a deserializer, which processes the received data through the deserializer and continues to transmit the data to the next-level sub-receiving end 31.

[0053] Please refer to Figure 1 Optionally, the transmission rate of the sub-transmission line 21 is greater than or equal to 3.375 Gbps.

[0054] Specifically, the transmission line bundle 20 provided by the present disclosure includes at least two sub-transmission lines 21, and each sub-transmission line 21 is provided with a sub-detection unit 41 for monitoring. When an abnormality is detected, feedback is given to the sub-identification unit 51. After the sub-identification unit 51 identifies the abnormal transmission line bundle 20, it is fed back to the signal transmitting end 10 through the feedback transmission line 60. The signal transmitting end 10 selects a normal transmission path for transmission according to the feedback signal. When the transmission paths are all normal, at least two sub-transmission lines 21 are included between the signal transmitting end 10 and the signal receiving end 30 to transmit signals. When one of the paths is abnormal, the signal is transmitted only through one sub-transmission line 21. When the transmission rate of the sub-transmission line 21 is less than 3.375 Gbps, the transmission rate of the sub-transmission line 21 is too slow, which is not conducive to signal transmission. Therefore, the present disclosure sets the transmission rate of the sub-transmission line 21 to be greater than or equal to 3.375 Gbps. In this way, when some of the sub-transmission lines 21 in the transmission line bundle 20 are abnormal, the transmission rates of other sub-transmission lines 21 can also meet the signal transmission. The present disclosure provides an optional implementation mode, the transmission rate of the sub-transmission line 21 is 6.75 Gbps; the present disclosure provides another optional implementation mode, the transmission rate of the sub-transmission line 21 is 10.8 Gbps; the present disclosure provides another optional implementation mode, the transmission rate of the sub-transmission line 21 is 13.5 Gbps. The present disclosure provides another optional implementation mode, the resolution of a vehicle display module 100 is 2000×810, when only one sub-transmission line 21 transmits a signal between the signal transmitting end 10 and the signal receiving end 30, the required transmission rate is about 2000×810×60×24 (Color depth) 132 / 128=2.41 Gbps, when the transmission rate of the sub-transmission line 21 is equal to 3.375 Gbps, it can also transmit normally to meet the display requirements, so as to ensure the integrity of the displayed information and the driving safety of the driver in the case of abnormal display of the screen during driving.

[0055] It should be noted that, regarding the transmission rate of the sub-transmission line 21 , the present disclosure only takes the above embodiment as an example for explanation and is not limited thereto. The transmission rate of the sub-transmission line 21 only needs to meet the maximum output rate requirement of the signal transmitting end 10 .

[0056] Based on the same inventive concept, the present disclosure provides a method for monitoring abnormality of a vehicle-mounted display module. Figure 7 FIG. 1 is a flow chart of an abnormality monitoring method for a vehicle display module provided by an embodiment of the present disclosure. Please refer to FIG. Figure 1 and Figure 7 , the abnormal monitoring method of the vehicle display module includes:

[0057] Step S01, the signal transmitting end 10 transmits a signal to the signal receiving end 30 through the transmission line bundle 20, and the transmission line bundle 20 includes at least two sub-transmission lines 21;

[0058] Step S02, the abnormality detection unit 40 monitors whether the sub-transmission line 21 transmits signals normally, and the abnormality detection unit 40 includes sub-detection units 41, and each sub-transmission line 21 corresponds to a sub-detection unit 41 for monitoring;

[0059] Step S03, when the transmission signal of the transmission line bundle 20 is detected to be abnormal, the sub-detection unit 41 reports the abnormality of the sub-transmission line 21 to the abnormality identification unit 50;

[0060] Step S04 : The abnormality identification unit 50 identifies the abnormal sub-transmission line 21 and feeds back the identification result to the signal transmitting end 10 .

[0061] Specifically, the present disclosure also provides an abnormality monitoring method for a vehicle-mounted display module, including but not limited to steps S01 to S04. In step S01, the signal transmitting end 10 sends a signal to the signal receiving end 30 through the transmission harness 20, wherein the transmission harness 20 includes at least two sub-transmission lines 21, that is, there are two transmission paths between the signal transmitting end 10 and the signal receiving end 30. In step S02, the abnormality detection unit 40 monitors the sub-transmission line 21. The abnormality detection unit 40 includes a sub-detection unit 41. The sub-detection unit 41 corresponds to the sub-transmission line 21 one by one, and the sub-transmission line 21 is monitored by the abnormality detection unit 40. In step S03, a sub-detection unit 41 monitors a sub-transmission line 21. When the sub-detection unit 41 detects that the sub-transmission line 21 is abnormal, the sub-detection unit 41 reports the abnormality of the sub-transmission line 21 to the abnormality identification unit 50. In step S04, the abnormal identification unit 50 receives the signal transmitted by the sub-detection unit 41, and identifies the abnormal sub-transmission line 21. Exemplarily, the sub-detection unit 41 is connected to different interfaces of the abnormal identification unit 50, and different sub-transmission lines 21 are identified through different interfaces. In this way, the abnormal sub-transmission line 21 can be monitored, and the identification result is fed back to the signal sending end 10.

[0062] The present disclosure sets at least two sub-transmission lines 21 between the signal sending end 10 and the signal receiving end 30, that is, includes at least two signal transmission paths, and monitors each sub-transmission line 21 through the abnormality detection unit 40. After the abnormality is detected, it is identified through the abnormality identification unit 50 and the identification result is fed back to the signal sending end 10. In this way, it is beneficial to timely discover the abnormal transmission path, thereby facilitating the selection of the transmission path where the normal sub-transmission line 21 is located to transmit the signal, and it is also beneficial to timely switch the normal transmission path, reduce the abnormal phenomenon of signal transmission, and further help reduce the occurrence of abnormal display of the vehicle display module 100.

[0063] Figure 8 FIG. 1 is a flow chart of another abnormality monitoring method for a vehicle-mounted display module provided by an embodiment of the present disclosure. Please refer to FIG. Figure 1and Figure 8 In one embodiment of the present disclosure, after the abnormality identification unit 50 feeds back the identification result to the signal sending end 10, it also includes:

[0064] Step S05, the signal transmitting end 10 determines the sub-transmission line 21 with abnormal transmission;

[0065] Step S061: when a normal sub-transmission line 21 exists between the signal transmitting end 10 and the signal receiving end 30, the normal sub-transmission line 21 is used to transmit signals;

[0066] Step S062: When there is an abnormal sub-transmission line 21 between the signal transmitting end 10 and the signal receiving end 30, the signal transmitting end 10 records the abnormality and stops signal transmission.

[0067] Specifically, the abnormality monitoring method of the vehicle display module provided by the present invention, after the abnormality identification unit 50 identifies the sub-transmission line 21 with an abnormality and feeds back the identification result to the signal sending end 10, also includes: the signal sending end 10 determines the sub-transmission line 21 with the transmission abnormality, that is, the signal sending end 10 determines the transmission path where the abnormality occurs.

[0068] The present disclosure provides an optional implementation manner, wherein two sub-transmission lines 21 are included between the signal sending end 10 and the signal receiving end 30, namely, a first sub-transmission line 211 and a second sub-transmission line 212; the abnormality detection unit 40 includes two sub-detection units 41, namely, a first sub-detection unit 411 and a second sub-detection unit 412; the first sub-detection unit 411 monitors the first sub-transmission line 211, and the second sub-detection unit 412 monitors the second sub-transmission line 212; when the first sub-detection unit 411 detects that the first sub-transmission line 211 is abnormal, the abnormality identification unit 50 is reported; the abnormality identification unit 50 determines that the sub-transmission line 21 in which the abnormality occurs is the first sub-transmission line 211 through the port number of the abnormality identification unit 50 to which the first sub-detection unit 411 is connected, and transmits the identification information to the signal sending end 10 through the feedback transmission line 60; the signal sending end 10 determines that the first sub-transmission line 211 is abnormal and the second sub-transmission line 212 is normal, and uses the second sub-transmission line 212 to transmit the signal.

[0069] The present disclosure provides another optional implementation manner, wherein two sub-transmission lines 21 are included between the signal sending end 10 and the signal receiving end 30, namely, a first sub-transmission line 211 and a second sub-transmission line 212, and the abnormality detection unit 40 includes two sub-detection units 41, namely, a first sub-detection unit 411 and a second sub-detection unit 412, the first sub-detection unit 411 monitors the first sub-transmission line 211, and the second sub-detection unit 412 monitors the second sub-transmission line 212, when the first sub-detection unit 411 detects that the first sub-transmission line 211 is abnormal, and the second sub-detection unit 412 detects that the second sub-transmission line 212 is abnormal, the abnormality identification unit 50 identifies that both sub-transmission lines 21 are abnormal, and feeds back to the signal sending end 10 respectively, and the signal sending end 10 determines that both sub-transmission lines 21 are abnormal, records the abnormality, and stops signal transmission.

[0070] It can be understood that the abnormality monitoring method of the vehicle display module provided by the present invention monitors the sub-transmission line 21 through the abnormality detection unit 40, identifies the abnormal sub-transmission line 21 through the abnormality identification unit 50 and feeds back to the signal sending end 10, and the signal sending end 10 selects a suitable transmission path to transmit the signal according to the situation of the sub-transmission line 21. This is conducive to timely discovering the abnormal transmission path, thereby facilitating the selection of the transmission path where the normal sub-transmission line 21 is located to transmit the signal, and is also conducive to timely switching the normal transmission path and timely recording the abnormal situation, reducing the signal transmission abnormality, and then helping to reduce the occurrence of abnormal display of the vehicle display module 100.

[0071] Fig. 9 The figure shows an abnormal situation diagram provided by the embodiment of the present disclosure. Please refer to Figure 3 and Fig. 9 In one embodiment of the present disclosure, it is characterized in that the sub-detection unit 41 monitors whether the sub-transmission line 21 is normal through voltage changes.

[0072] Specifically, in this embodiment, the sub-detection unit 41 monitors the abnormality of the sub-transmission line 21 through the voltage change of the sub-transmission line 21. Optionally, the sub-detection unit 41 uses a voltage comparator. When the sub-transmission line 21 is abnormal, the voltage of the sub-transmission line 21 will change relative to the normal voltage to form a voltage difference ΔV1 or ΔV2 (the dotted line in the figure represents the normal voltage). After the sub-detection unit 41 detects the voltage difference, it sends it to the abnormality identification unit 50 and performs subsequent feedback, i.e., transmission path switching and other steps. In this embodiment, the sub-transmission line 21 is monitored by voltage changes to see whether it is normal. This method has little effect on the equipment or devices in the vehicle display module 100, which is conducive to reducing the impact on the vehicle display module 100. It should be noted that the abnormal phenomenon of the transmission path usually includes voltage abnormality, circuit breakage, etc. The above abnormalities can be monitored by voltage changes. This application is only used as an example for illustration and is not limited to this.

[0073] Please refer to Figure 6 and Figure 7 In one embodiment of the present disclosure, the signal receiving end 30 includes N stages of sub-receiving ends 31 connected in series, the abnormality detection unit 40 includes N stages of sub-detection unit groups 401, each stage of the sub-detection unit group 401 includes at least two sub-detection units 41, and the abnormality identification unit 50 includes N stages of sub-identification units 51, N ≥ 2, and N is an integer;

[0074] Starting from the second-stage sub-receiving terminal 31, each stage sub-receiving terminal 31 is connected to the previous stage sub-receiving terminal 31 via at least two sub-transmission lines 21, and the sub-transmission line 21 between the N-th stage sub-receiving terminal 31 and the N-1-th stage sub-receiving terminal 31 corresponds one-to-one to the sub-detection unit 41 in the N-th stage sub-detection unit group 401;

[0075] The Nth-level sub-identification unit 51 is connected to the Nth-level sub-detection unit 41;

[0076] The abnormality monitoring method of the vehicle display module also includes:

[0077] When the Nth-stage sub-detection unit 41 detects that the sub-transmission line 21 between the Nth-stage sub-receiving unit and the N-1th-stage sub-receiving unit is abnormal, the Nth-stage sub-detection unit 41 reports the abnormality of the sub-transmission line 21 to the Nth-stage sub-identification unit 51;

[0078] The Nth-stage sub-identification unit 51 identifies the abnormal sub-transmission line 21 and feeds back the identification result to the previous-stage sub-identification unit 51 in sequence until the first-stage sub-identification unit 51 , and the first-stage sub-identification unit 51 feeds back to the signal transmitting end 10 .

[0079] Specifically, in this embodiment, the signal receiving end 30 includes a plurality of sub-receiving ends 31. For example, please refer to Figure 6The signal receiving terminal 30 includes three sub-receiving terminals 31, three sub-detection unit groups 401, three sub-identification units 51, and three sub-feedback lines 61. The present disclosure takes the abnormal monitoring method of the second-level sub-receiving terminal 31 as an example for explanation, and the same applies to other levels. Specifically, two sub-transmission lines 21, a third sub-transmission line 213, and a fourth sub-transmission line 214 are included between the second-level sub-receiving terminal 31 and the first-level sub-receiving terminal 31. The sub-transmission line 21 between the second-level sub-receiving terminal 31 and the first-level sub-receiving terminal 31 is monitored by the second-level sub-detection unit group 401. The second-level sub-detection unit group 401 includes a third sub-detection unit 413 and a fourth sub-detection unit 414. The third sub-detection unit 413 monitors whether the third sub-transmission line 213 is normal, and the fourth sub-detection unit 414 monitors whether the fourth sub-transmission line 214 is normal. When the fourth sub-detection unit 414 detects that the fourth sub-transmission line 214 is abnormal, it will feedback to the second-level sub-identification unit 51. The second-level sub-identification unit 51 recognizes that the fourth sub-transmission line 214 is abnormal through the port number of the fourth sub-detection unit 414 connected to the second-level sub-identification unit 51, and feeds back the abnormality of the fourth sub-transmission line 214 to the first-level sub-identification unit 51 through the second-level sub-feedback line 61, and then the first-level sub-identification unit 51 transmits it to the signal sending end 10 through the first-level sub-feedback line 61. In this way, the signal sending end 10 can determine that the fourth sub-transmission line 214 is abnormal, and select the normal sub-transmission line 21 to transmit the signal, which is conducive to timely switching the normal transmission path and reducing the abnormal display of the vehicle display module 100.

[0080] It should be noted that, in this embodiment, the abnormal monitoring method of the sub-transmission line 21 corresponding to the N-th level sub-detection unit 41 (N ≥ 2, and N is an integer) is explained through the abnormal monitoring method of the sub-transmission line 21 corresponding to the second-level sub-detection unit 41, but it is not limited to this. The abnormal monitoring method of the sub-transmission line 21 corresponding to the sub-detection unit 41 after the second level is similar.

[0081] Please continue to refer to Figure 6 and Figure 7 In one embodiment of the present disclosure, when the first-level sub-detection unit 41 detects that the sub-transmission line 21 between the first-level sub-receiving terminal 31 and the signal sending terminal 10 is abnormal, the first-level sub-identification unit 51 reports the abnormality of the sub-transmission line 21; the first-level sub-identification unit 51 identifies the abnormal sub-transmission line 21 and feeds back the identification result to the signal sending terminal 10.

[0082] Specifically, this embodiment will illustrate the abnormality monitoring method corresponding to the first-level sub-detection unit 41 when the signal receiving end 30 includes multiple sub-receiving ends 31. The first-level sub-detection unit 41 includes a first sub-detection unit 411 and a second sub-detection unit 412. The first sub-detection unit 411 monitors the first sub-transmission line 211, and the second sub-detection unit 412 monitors the second sub-transmission line 212. When the second sub-detection unit 412 detects that the second sub-transmission line 212 is abnormal, it is fed back to the first sub-identification unit 51. The first sub-identification unit 51 identifies the sub-transmission line 21 with an abnormality as the second sub-transmission line 212 through the port number connected to the second sub-transmission line 212 and the first sub-identification unit 51, and feeds back the identification result to the signal sending end 10 through the first-level sub-feedback line 61. In this way, it is beneficial for the signal receiving end 30 to select a normal transmission path and reduce the abnormal display of the vehicle-mounted display module 100.

[0083] It can be seen from the above embodiments that the vehicle-mounted display module and the abnormality monitoring method thereof provided by the present disclosure achieve at least the following beneficial effects:

[0084] The present disclosure provides a vehicle-mounted display module and an abnormality monitoring method thereof, wherein the vehicle-mounted display module includes a signal sending end, a transmission harness, a signal receiving end, an abnormality detection unit, an abnormality identification unit, and a feedback transmission line; the signal sending end and the signal receiving end are connected to two ends of the transmission harness and communicate through the transmission harness; the abnormality detection unit is respectively connected to the transmission harness and the abnormality identification unit; the abnormality identification unit feeds back a signal to the signal sending end through the feedback transmission line; the transmission harness includes at least two sub-transmission lines; the abnormality detection unit includes sub-detection units, and the sub-transmission lines correspond to the sub-detection units one by one; the abnormality detection unit is used to monitor the abnormality of the transmission harness; and the abnormality identification unit is used to identify the sub-transmission line with an abnormality. The vehicle-mounted display module provided by the present disclosure transmits signals by setting a transmission harness between a signal sending end and a signal receiving end. The transmission harness includes at least two sub-transmission lines, that is, two transmission paths are formed between the signal sending end and the signal receiving end. At the same time, sub-detection units are respectively set for the two sub-transmission lines to monitor abnormalities. The abnormal transmission path is identified by the abnormal identification unit, so that the normal transmission path is selected to transmit the signal. This is conducive to timely switching of the normal transmission path, thereby helping to reduce signal transmission abnormalities, and further helping to reduce the occurrence of abnormal display conditions of the vehicle-mounted display module.

[0085] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0086] The above description is only a specific embodiment of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vehicle-mounted display module, characterized in that: It includes a signal transmitting end, a transmission line bundle, a signal receiving end, an abnormality detection unit, an abnormality identification unit, and a feedback transmission line; The signal transmitting end and the signal receiving end are connected to two ends of the transmission line bundle and communicate through the transmission line bundle; the abnormality detection unit is connected to the transmission line bundle and the abnormality identification unit respectively; the abnormality identification unit feeds back a signal to the signal transmitting end through the feedback transmission line; The transmission line bundle includes at least two sub-transmission lines; the abnormality detection unit includes a sub-detection unit, and the sub-transmission lines correspond to the sub-detection units one by one; The abnormality detection unit is used to monitor the abnormality of the transmission line bundle; the abnormality identification unit is used to identify the sub-transmission line with the abnormality.

2. The vehicle-mounted display module according to claim 1, characterized in that: The signal sending end includes a control module; The control module is configured to receive a feedback signal sent by the abnormality identification unit, and select a signal transmission path according to the feedback signal.

3. The vehicle-mounted display module according to claim 1, characterized in that: The signal receiving end includes N stages of sub-receiving ends connected in series, the abnormality detection unit includes N stages of sub-detection unit groups, each stage of the sub-detection unit group includes at least two sub-detection units, the abnormality identification unit includes N stages of sub-identification units, and the feedback transmission line includes N stages of sub-feedback lines, N≥2, and N is an integer; Starting from the second-level sub-receiving end, each level of the sub-receiving end is connected to the previous level of the sub-receiving end through at least two sub-transmission lines, and the sub-transmission lines between the N-level sub-receiving end and the N-1-level sub-receiving end correspond one-to-one to the sub-detection units in the N-level sub-detection unit group; The sub-identification unit of the Nth stage is connected to the sub-detection unit of the Nth stage; The sub-feedback line of the Nth stage connects the sub-identification unit of the Nth stage and the sub-identification unit of the N-1th stage.

4. The vehicle-mounted display module according to claim 3, characterized in that: The first-stage sub-receiving end is connected to the signal sending end, the first-stage sub-detecting unit group is connected to the transmission line bundle between the signal sending end and the first-stage sub-receiving end, and the first-stage sub-identifying unit is connected to the first-stage sub-detecting unit group and the first-stage sub-feedback line.

5. The vehicle-mounted display module according to claim 1, characterized in that: The transmission rate of the sub-transmission line is greater than or equal to 3.375 Gbps.

6. A method for monitoring abnormality of a vehicle display module, characterized in that: include: The signal transmitting end transmits a signal to the signal receiving end through a transmission line bundle, wherein the transmission line bundle includes at least two sub-transmission lines; The abnormality detection unit monitors whether the sub-transmission line transmits signals normally, and the abnormality detection unit includes sub-detection units, and each sub-transmission line corresponds to one sub-detection unit for monitoring; When the transmission signal of the transmission line bundle is detected to be abnormal, the sub-detection unit reports the abnormality of the sub-transmission line to the abnormality identification unit; The abnormality identification unit identifies the abnormal sub-transmission line and feeds back the identification result to the signal sending end.

7. The abnormality monitoring method of the vehicle-mounted display module according to claim 6, characterized in that: After the abnormality identification unit feeds back the identification result to the signal sending end, it also includes: The signal sending end determines the sub-transmission line with abnormal transmission; When there is a normal sub-transmission line between the signal transmitting end and the signal receiving end, the normal sub-transmission line is used to transmit the signal; When the sub-transmission lines between the signal transmitting end and the signal receiving end are both abnormal, the signal transmitting end records the abnormality and stops signal transmission.

8. The abnormality monitoring method of the vehicle-mounted display module according to claim 6, characterized in that: The sub-detection unit monitors whether the sub-transmission line is normal through voltage changes.

9. The abnormality monitoring method of the vehicle-mounted display module according to claim 6, characterized in that: The signal receiving end includes N stages of sub-receiving ends connected in series, the abnormality detection unit includes N stages of sub-detection unit groups, each stage of the sub-detection unit group includes at least two sub-detection units, and the abnormality identification unit includes N stages of sub-identification units, N≥2, and N is an integer; Starting from the second-level sub-receiving end, each level of the sub-receiving end is connected to the previous level of the sub-receiving end through at least two sub-transmission lines, and the sub-transmission lines between the N-level sub-receiving end and the N-1-level sub-receiving end correspond one-to-one to the sub-detection units in the N-level sub-detection unit group; The sub-identification unit of the Nth stage is connected to the sub-detection unit of the Nth stage; The abnormality monitoring method of the vehicle-mounted display module also includes: When the sub-detection unit of the Nth stage detects that the sub-transmission line between the sub-receiving unit of the Nth stage and the sub-receiving unit of the N-1th stage is abnormal, the sub-detection unit of the Nth stage reports the abnormality of the sub-transmission line to the sub-identification unit of the Nth stage; The Nth-stage sub-identification unit identifies the abnormal sub-transmission line and feeds back the identification result to the previous-stage sub-identification unit in sequence until the first-stage sub-identification unit, and the first-stage sub-identification unit feeds back to the signal sending end.

10. The abnormality monitoring method of the vehicle-mounted display module according to claim 9, characterized in that: When the first-level sub-detection unit detects that the sub-transmission line between the first-level sub-receiving end and the signal sending end is abnormal, the sub-transmission line abnormality is reported to the first-level sub-identification unit; the first-level sub-identification unit identifies the abnormal sub-transmission line and feeds back the identification result to the signal sending end.

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