Vehicle-mounted equipment system and automobile

Abstract

The invention discloses a vehicle-mounted equipment system and an automobile, the vehicle-mounted equipment system comprises first vehicle-mounted equipment, second vehicle-mounted equipment and a multiplexing transmission line, and the multiplexing transmission line is connected with a first power supply communication multiplexing interface on the first vehicle-mounted equipment and a second power supply communication multiplexing interface on the second vehicle-mounted equipment; and multiplexing is carried out for power supply electric energy transmission and data transmission. According to the invention, power supply electric energy transmission and data transmission can be performed through multiplexing of the multiplexing transmission line, and the multiplexing transmission line is used as an entity wire to realize the function jointly realized by the two entity wires, namely a power supply wire and a data transmission wire; compared with the sum of indexes such as the size and the quality of a power supply wire and a data transmission wire capable of realizing the same power supply electric energy transmission performance and data transmission performance, the indexes such as the size and the quality of the multiplexing transmission line are smaller, so that the effects of simplifying wire harnesses on an automobile, reducing the size of the wire harnesses, reducing the cost of the wire harnesses, reducing the wiring difficulty and the like can be realized. The invention is widely applied to the technical field of automobiles.

Description

Technical Field

[0001] The present invention relates to the field of automobile technology, in particular to a vehicle-mounted equipment system and a vehicle. Background Art

[0002] Most of the devices installed on the car have data transmission functions and need power supply to work, so it is necessary to equip the vehicle-mounted devices with power supply wires and data transmission wires. Since there are many vehicle-mounted devices installed on a car, it will need to be equipped with more power supply wires and data transmission wires, forming a large-scale wiring harness, resulting in high wiring harness cost, large volume, and wiring difficulties. Summary of the invention

[0003] In view of the technical problems that current automobiles face when installing or using on-board equipment, such as high wiring harness cost, large size, and difficulty in wiring, the purpose of the present invention is to provide an on-board equipment system and an automobile.

[0004] In one aspect, an embodiment of the present invention includes a vehicle-mounted device system, the vehicle-mounted device system including:

[0005] A first vehicle-mounted device; the first vehicle-mounted device is provided with a first power supply communication multiplexing interface, and the first power supply communication multiplexing interface is used for multiplexing power supply power output and data transmission;

[0006] Second vehicle-mounted device; the second vehicle-mounted device is provided with a second power supply communication multiplexing interface, and the second power supply communication multiplexing interface is used for multiplexing power supply power reception and data transmission;

[0007] Multiplexing transmission line; the multiplexing transmission line connects the first power supply communication multiplexing interface and the second power supply communication multiplexing interface, and the multiplexing transmission line is used for multiplexing power supply power transmission and data transmission.

[0008] Furthermore, the vehicle-mounted equipment system further includes:

[0009] Power supply equipment; the power supply equipment is used to output power supply energy to the first vehicle-mounted device.

[0010] Further, the first vehicle-mounted device includes a first control component, a first signal transceiver component and a first switch;

[0011] The first connection end of the first switching switch is used to connect to the power supply device, the second connection end of the first switching switch is used to connect to the first signal transceiver component, the third connection end of the first switching switch is connected to the first power supply communication multiplexing interface, and the controlled end of the first switching switch is connected to the control end of the first control component.

[0012] Furthermore, the second vehicle-mounted device includes a second control component, a second signal transceiver component, a second switch and an energy storage component;

[0013] The discharge end of the energy storage component is connected to the second control component and the second signal transceiver component;

[0014] The fourth connection end of the second switching switch is used to connect to the second power supply communication multiplexing interface, the fifth connection end of the second switching switch is used to connect to the second signal transceiver component, the sixth connection end of the second switching switch is connected to the charging end of the energy storage component, and the controlled end of the second switching switch is connected to the control end of the second control component.

[0015] Further, the first control component and / or the second control component is used to determine the power transmission period and the data transmission period;

[0016] The first control component is used to control the first connection end of the first switch to be connected with the third connection end and the second connection end to be disconnected from the third connection end during the power transmission period; and to control the second connection end of the first switch to be connected with the third connection end and the first connection end to be disconnected from the third connection end during the data transmission period;

[0017] The second control component is used to control the sixth connection terminal of the second switching switch to be connected with the fourth connection terminal and the fifth connection terminal to be disconnected from the fourth connection terminal during the power transmission period; during the data transmission period, control the fifth connection terminal of the second switching switch to be connected with the fourth connection terminal and the sixth connection terminal to be disconnected from the fourth connection terminal.

[0018] Furthermore, the first signal transceiving component and the second signal transceiving component are used to perform data transmission during the data transmission period.

[0019] Furthermore, the first vehicle-mounted device also includes a current detection component;

[0020] The current detection component is used to detect the current information of the power supply energy output by the first power supply communication multiplexing interface, and send the current information to the first control component.

[0021] Further, when the first control component is used to determine the power transmission period and the data transmission period, the first control component is used to perform the following steps:

[0022] Determining an end time of the power transmission period according to the current information;

[0023] When the power transmission period ends, the data transmission period begins;

[0024] Detecting the transmitted data, and when an end mark of the transmitted data is detected, determining an end time of the data transmission period;

[0025] When the data transmission period ends, the power transmission period begins.

[0026] Further, when the first control component and / or the second control component is used to determine the power transmission period and the data transmission period, the first control component and / or the second control component is used to perform the following steps:

[0027] Get the data to be transmitted;

[0028] Get the current usage status information of the car;

[0029] Determining the correlation between the data to be transmitted and the current usage status information;

[0030] Determining a total transmission period according to the amount of data to be transmitted;

[0031] According to the correlation, the total transmission period is decomposed into a plurality of the data transmission periods; the number of each of the data transmission periods is positively correlated with the correlation, and the duration of any of the data transmission periods is negatively correlated with the correlation;

[0032] For any of the data transmission periods, a corresponding power transmission period is set; the duration of the power transmission period matches the duration of the corresponding data transmission period;

[0033] Each of the power transmission periods is inserted between each of the data transmission periods; wherein any of the power transmission periods is adjacent to the corresponding data transmission period.

[0034] On the other hand, an embodiment of the present invention further includes a car, wherein the car includes the vehicle-mounted equipment system in the embodiment.

[0035] The beneficial effect of the present invention is that the vehicle-mounted equipment system in the embodiment can multiplex power supply and data transmission through a multiplexed transmission line, and the multiplexed transmission line as a physical conductor realizes the functions jointly realized by the power supply conductor and the data transmission conductor. Compared with the sum of the volume, mass and other indicators of the power supply conductor and the data transmission conductor that can achieve the same power supply and power transmission performance and data transmission performance, the volume, mass and other indicators of the multiplexed transmission line are smaller, thereby achieving the effects of simplifying the wiring harness on the car, reducing the volume of the wiring harness, reducing the cost of the wiring harness and the difficulty of wiring. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the structure of automobile-related technologies;

[0037] Figure 2 is a structural schematic diagram of the vehicle-mounted equipment system in the embodiment;

[0038] Figure 3 Schematic diagram of the structure of the first vehicle-mounted device and the second vehicle-mounted device in the embodiment;

[0039] FIG4( a ) is a schematic diagram of a power transmission path during power transmission in an embodiment;

[0040] FIG4( b ) is a schematic diagram of a power transmission path and a data transmission path during a power transmission period in an embodiment;

[0041] Figure 5 Schematic diagram of power transmission period and data transmission period in the embodiment;

[0042] Figure 6 It is a structural schematic diagram of a vehicle-mounted equipment system provided with a current detection component in an embodiment;

[0043] Figure 7 Schematic diagram of the principles of steps S1B-S7B in the embodiment. DETAILED DESCRIPTION

[0044] In some automobile-related technologies, the on-board equipment of a car is set as follows Figure 1 See Figure 1 The car is provided with a power supply device and a first on-board device and a second on-board device. These on-board devices need electricity to work, and are powered by the power supply device through a power supply wire. These on-board devices need to communicate with each other, and data transmission wires can be used between these on-board devices in a point-to-point or bus manner, for example Figure 1 In the embodiment, the first vehicle-mounted device and the second vehicle-mounted device are connected point-to-point using a data transmission wire.

[0045] Since wireless communication is susceptible to interference and the use and modification costs of optical communication are high, electrical signal communication is more suitable for use in automobiles at present. Figure 1 In the automobile-related technology shown, both the power supply wire and the data transmission wire are physical wires, such as copper wires. Therefore, the power supply wire and the data transmission wire need to be provided at the same time, resulting in an excessive number of wires.

[0046] In view of the problems existing in the current automobile-related technologies, this embodiment provides a vehicle-mounted device system. The structure of this vehicle-mounted device system is as follows: Figure 2 See Figure 2This vehicle-mounted equipment system includes a first vehicle-mounted equipment, a second vehicle-mounted equipment and a multiplexed transmission line, wherein the first vehicle-mounted equipment is provided with a first power supply communication multiplexing interface, the second vehicle-mounted equipment is provided with a second power supply communication multiplexing interface, one end of the multiplexed transmission line is connected to the first power supply communication multiplexing interface, and the other end is connected to the second power supply communication multiplexing interface.

[0047] In this embodiment, the first vehicle-mounted device may be the master controller of the entire vehicle, or a local controller in a certain network on the vehicle, and the second vehicle-mounted device may be a component on the vehicle that implements a specific function, such as a tire pressure sensor module, an engine temperature sensor module, an engine speed sensor module, a driving acceleration sensor module, an air temperature sensor module, a cabin oxygen concentration sensor module, an external water level sensor module, etc. The number of the first vehicle-mounted devices and the number of the second vehicle-mounted devices may be one or more, respectively. In this embodiment, one first vehicle-mounted device and one second vehicle-mounted device are used as an example for description.

[0048] In this embodiment, Figure 2 As shown, the vehicle-mounted device system also includes a power supply device. The power supply device can be a lead-acid battery, a lithium power battery, or a generator installed on the car. The power supply device is connected to the first vehicle-mounted device through a power supply wire, and the power supply device outputs power to the first vehicle-mounted device.

[0049] In this embodiment, the first power supply communication multiplexing interface provided on the first vehicle-mounted device can be multiplexed for power supply power output and data transmission, that is, the first vehicle-mounted device can not only transmit data (including data sending and receiving) through the first power supply communication multiplexing interface, but also output part or all of the power supply power provided by the power supply device through the first power supply communication multiplexing interface. Similarly, the second power supply communication multiplexing interface provided on the second vehicle-mounted device can be multiplexed for power supply power reception and data transmission, that is, the second vehicle-mounted device can not only transmit data (including data receiving and sending) through the second power supply communication multiplexing interface, but also receive external input power supply power through the second power supply communication multiplexing interface, so as to be used by the second vehicle-mounted device when working.

[0050] In this embodiment, the multiplexed transmission line connects the first power supply communication multiplexing interface and the second power supply communication multiplexing interface. Therefore, the multiplexed transmission line can be used as a data transmission medium between the first power supply communication multiplexing interface and the second power supply communication multiplexing interface, and can also be used as a power transmission medium between the first power supply communication multiplexing interface and the second power supply communication multiplexing interface, that is, the multiplexed transmission line can be multiplexed for power supply power transmission and data transmission.

[0051] In this embodiment, when Figure 2When the vehicle-mounted device system shown is working, the power supply device directly transmits power supply energy to the first vehicle-mounted device through the power supply wire, and the internal power supply component in the first vehicle-mounted device provides part of the power supply energy to the components in the first vehicle-mounted device for use, so that the first vehicle-mounted device works normally; the first vehicle-mounted device also outputs another part of the power supply energy transmitted by the power supply device through the first power supply communication multiplexing interface, and transmits it to the second power supply communication multiplexing interface in the second vehicle-mounted device via the multiplexed transmission line, and the internal power supply component in the second vehicle-mounted device receives the power supply energy from the second power supply communication multiplexing interface and provides it to the components in the second vehicle-mounted device for use, so that the second vehicle-mounted device works normally; when data is transmitted between the first vehicle-mounted device and the second vehicle-mounted device, the data sent from the first vehicle-mounted device to the second vehicle-mounted device is output from the first power supply communication multiplexing interface, and then sent to the second power supply communication multiplexing interface via the multiplexed transmission line, so as to be received by the second vehicle-mounted device. Similarly, the data sent from the second vehicle-mounted device to the first vehicle-mounted device is output from the second power supply communication multiplexing interface, and then sent to the first power supply communication multiplexing interface via the multiplexed transmission line, so as to be received by the first vehicle-mounted device.

[0052] In this embodiment, the data transmitted between the first vehicle-mounted device and the second vehicle-mounted device may be a command sent by the first vehicle-mounted device to the second vehicle-mounted device, or may be data generated or collected by the second vehicle-mounted device (for example, tire pressure data collected by a tire pressure sensor module, engine temperature data collected by an engine temperature sensor module, etc.), or may be data received by the second vehicle-mounted device from other vehicle-mounted devices and needs to be forwarded to the first vehicle-mounted device.

[0053] pass Figure 2 From the working process of the vehicle-mounted equipment system shown, it can be seen that the vehicle-mounted equipment system in this embodiment can multiplex power supply power transmission and data transmission through the multiplexed transmission line, and the multiplexed transmission line as a physical wire realizes the functions jointly realized by the two physical wires of the power supply wire and the data transmission wire. Compared with the sum of the volume, mass and other indicators of the power supply wire and the data transmission wire that can achieve the same power supply power transmission performance and data transmission performance, the volume, mass and other indicators of the multiplexed transmission line are smaller, thereby achieving the effects of simplifying the wiring harness on the car, reducing the volume of the wiring harness, reducing the cost of the wiring harness and the difficulty of wiring.

[0054] In this embodiment, the specific structures of the first vehicle-mounted device and the second vehicle-mounted device are as follows: Figure 3 See Figure 3The first vehicle-mounted device includes a first control component, a first signal transceiver component and a first switch, and the second vehicle-mounted device includes a second control component, a second signal transceiver component, a second switch and an energy storage component. The first control component and the second control component are components with control and data processing functions, such as a microcontroller unit (MCU), etc.; the first signal transceiver component and the second signal transceiver component are components with communication functions, which can run communication protocols such as the controller area network protocol (CAN) and the local interconnect network protocol (LIN).

[0055] Reference Figure 3 The first switching switch is provided with a controlled end, a first connection end (1), a second connection end (2) and a third connection end (3), wherein the first connection end (1) is used to connect to the power supply device, the second connection end (2) is used to connect to the first signal transceiver component, the third connection end (3) is connected to the first power supply communication multiplexing interface, and the controlled end is connected to the control end of the first control component.

[0056] Reference Figure 3 The second switch is provided with a controlled end, a fourth connection end (4), a fifth connection end (5) and a sixth connection end (6), wherein the fourth connection end (4) is used to connect to the second power supply communication multiplexing interface, the fifth connection end (5) is used to connect to the second signal transceiver component, the sixth connection end (6) is connected to the charging end of the energy storage component, and the controlled end is connected to the control end of the second control component.

[0057] In this embodiment, the first switching switch and the second switching switch may be controllable switches such as MOSFET, IGBT, thyristor or relay. The first connection terminal (1) and the second connection terminal (2) on the first switching switch are not connected, and the third connection terminal (3) can be switched to be connected to the first connection terminal (1) [and disconnected from the second connection terminal (2)], or switched to be connected to the second connection terminal (2) [and disconnected from the first connection terminal (1)]. The specific connection and disconnection states can be controlled by the control end of the first control component sending a control level to the controlled end. Similarly, the fifth connection terminal (5) and the sixth connection terminal (6) on the second switching switch are not connected, and the fourth connection terminal (4) can be switched to be connected to the fifth connection terminal (5) [and disconnected from the sixth connection terminal (6)], or switched to be connected to the sixth connection terminal (6) [and disconnected from the fifth connection terminal (5)]. The specific connection and disconnection states can be controlled by the control end of the second control component sending a control level to the controlled end.

[0058] In this embodiment, the energy storage component can be a ceramic capacitor, a film capacitor, an electrolytic capacitor or a rechargeable battery. The energy storage component is provided with a charging terminal and a discharging terminal. The charging terminal receives and stores the power supply energy, and the discharging terminal releases the power supply energy to the outside. Figure 3 The charging end of the energy storage component is connected to the sixth connection end (6) on the second switch, and the discharging end of the energy storage component is connected to the second control component and the second signal transceiver component.

[0059] In this embodiment, the power transmission period and the data transmission period may be determined by the first control component alone, or by the second control component alone, or by the first control component and the second control component together. Specifically, the power transmission period and the data transmission period are respectively one or more time segments.

[0060] After the power transmission period and the data transmission period are determined, referring to FIG. 4( a ), during the power transmission period:

[0061] The first control component controls the first connection terminal (1) of the first switching switch to be connected with the third connection terminal (3), and the second connection terminal (2) to be disconnected from the third connection terminal (3); the second control component controls the sixth connection terminal (6) of the second switching switch to be connected with the fourth connection terminal (4), and the fifth connection terminal (5) to be disconnected from the fourth connection terminal (4); thereby forming an electric energy transmission path shown by the blue line in Figure 4 (a), so that the multiplexed transmission line can transmit the power supply energy output by the power supply device when not transmitting data, and the power supply energy output by the power supply device can be transmitted to the second vehicle-mounted device through the first vehicle-mounted device. Specifically, a part of the power supply energy received by the second vehicle-mounted device can be used for the operation of components in the second vehicle-mounted device, and the other part can be charged into the energy storage component for storage.

[0062] Referring to FIG4(b), during data transmission:

[0063] The first control component controls the second connection terminal (2) of the first switching switch to be connected with the third connection terminal (3), and the first connection terminal (1) to be disconnected from the third connection terminal (3); the second control component controls the fifth connection terminal (5) of the second switching switch to be connected with the fourth connection terminal (4), and the sixth connection terminal (6) to be disconnected from the fourth connection terminal (4); thereby forming an electric energy transmission path shown by the blue line in FIG4(b), and a data transmission path shown by the red line, so that the multiplexed transmission line can transmit data when not transmitting power supply energy, and the first signal transceiver component of the first vehicle-mounted device is connected with the second signal transceiver component of the second vehicle-mounted device for data transmission, and although the second vehicle-mounted device cannot receive power supply energy through the multiplexed transmission line, the energy storage component can release power for the operation of the components in the second vehicle-mounted device.

[0064] In this embodiment, the power transmission period shown in Figure 4(a) and the data transmission period shown in Figure 4(b) can be staggered but not overlapped. For example, during the power transmission period, the first vehicle-mounted device only transmits power to the second vehicle-mounted device through the multiplexed transmission line without transmitting data; during the data transmission period, only data is transmitted between the first vehicle-mounted device and the second vehicle-mounted device through the multiplexed transmission line without transmitting power, thereby realizing time-sharing multiplexing of the multiplexed transmission line.

[0065] In this embodiment, Figure 5 As shown, the power transmission period and the data transmission period are performed alternately, for example, after a power transmission period ends, the data transmission period begins, and after this data transmission period ends, the power transmission period begins... and so on. Among them, each power transmission period can enable the second vehicle-mounted device to store power for the next data transmission period (which is also equivalent to the second vehicle-mounted device replenishing the power consumed in the previous data transmission period), thereby ensuring that the second vehicle-mounted device has enough power to operate during the data transmission period, and realizing data transmission between the second vehicle-mounted device and the first vehicle-mounted device.

[0066] By time-division multiplexing the multiplexed transmission line, the data transmission process and the power transmission process can be performed in different time periods while ensuring that both the first vehicle-mounted device and the second vehicle-mounted device can operate smoothly, that is, power transmission is not performed during data transmission, which can ensure that the data transmission process will not be interfered by power transmission, thereby ensuring the quality and efficiency of data transmission. The principle is that the second vehicle-mounted device is generally a device with a light load, and the load generated by the data transmission process of the second vehicle-mounted device accounts for a large proportion of its total load. Therefore, when the second vehicle-mounted device switches between the data transmission process and the non-data transmission process, it will cause a large fluctuation in the load of the second vehicle-mounted device. If time-division multiplexing is not performed, for example, power is continuously transmitted through the multiplexed transmission line, then the power transmitted to the second vehicle-mounted device through the multiplexed transmission line will fluctuate with the change of the data transmission rate of the second vehicle-mounted device, etc. This fluctuation will interfere with the data transmission process that is being performed simultaneously, and time-division multiplexing can reduce the impact of this problem.

[0067] In this embodiment, Figure 6 As shown, the first vehicle-mounted device further includes a current detection component. Specifically, the current detection component may be a component with a current detection function such as a Hall effect sensor, a current sensor or a photocoupler.

[0068] Reference Figure 6The current detection component detects the current information of the power supply energy output by the first power supply communication multiplexing interface through the multiplexed transmission line, and sends the current information to the first control component. Specifically, the current information can be a time series of the current magnitude collected periodically.

[0069] In this embodiment, the first control component may determine the power transmission period and the data transmission period, that is, the first control component may determine when the power transmission period starts and ends, and determine when the data transmission period starts and ends. Specifically, the first control component may perform the following steps:

[0070] S1A. Determine the end time of the power transmission period according to the current information;

[0071] S2A. When the power transmission period ends, the data transmission period begins;

[0072] S3A detects the transmitted data, and when the end mark of the transmitted data is detected, determines the end time of the data transmission period;

[0073] S4A. When the data transmission period ends, the power transmission period begins.

[0074] Step S1A can be performed during each power transmission period. Since during the power transmission period, the first power supply communication multiplexing interface continuously transmits power supply energy to the second power supply communication multiplexing interface through the multiplexed transmission line, and the power supply energy is basically stored in the energy storage component in the second vehicle-mounted device, the current magnitude time series reflected by the current information is stable for most of the time. After the energy storage component in the second vehicle-mounted device is fully charged, the current that can be input into the second vehicle-mounted device will decrease rapidly, so the first control component can use the occurrence time of "the current magnitude reduction rate reflected by the current information is greater than the first threshold value" as the end time of the current power transmission period.

[0075] In step S2A, after reaching the end time of an energy transmission period, the first control component immediately starts the data transmission period and operates according to the control logic of FIG. 4( b ).

[0076] Step S3A can be performed during each data transmission period. During the data transmission period, the first signal transceiver component sends data to the second signal transceiver component, or the second signal transceiver component sends data to the first signal transceiver component. Whether the first signal transceiver component sends or receives data, it can detect the transmitted data. If the end mark of the transmitted data (such as a specific data frame or data bit) is detected, it means that the transmitted data has been transmitted. The first signal transceiver component can send the end mark to the first control component, triggering the first control component to determine the moment when the transmitted data is transmitted as the end time of the data transmission period, thereby ending the current data transmission period in step S4A and starting a new power transmission period.

[0077] Steps S1A-S4A form a loop body, which is executed cyclically by the first control component, so as to achieve Figure 5 The data transmission periods and the power transmission periods are shown to be performed alternately.

[0078] In this embodiment, the first control component or the second control component may determine the power transmission period and the data transmission period individually or jointly, that is, the first control component or the second control component may determine when the power transmission period starts and ends, and determine when the data transmission period starts and ends. Specifically, taking the second vehicle-mounted device needing to send data to the first vehicle-mounted device, and the second control component individually determining the power transmission period and the data transmission period as an example, the second control component may perform the following steps:

[0079] S1B. Get the data to be transmitted;

[0080] S2B. Get the current usage status information of the car;

[0081] S3B determines the relevance between the data to be transmitted and the current usage status information;

[0082] S4B. Determine the total transmission period according to the amount of data to be transmitted;

[0083] S5B. According to the relevance, the total transmission period is decomposed into multiple data transmission periods;

[0084] S6B. For any data transmission period, a corresponding power transmission period is set; the duration of the power transmission period matches the duration of the corresponding data transmission period;

[0085] S7B. Insert each power transmission period between each data transmission period.

[0086] In step S1B, the data to be transmitted is the data to be sent by the second signal transceiver component to the first signal transceiver component. The second control component can obtain the data to be transmitted itself from the second signal transceiver component, or only obtain information such as the data volume or keywords of the data to be transmitted.

[0087] In step S2B, the current use status information may specifically be information indicating whether the vehicle has a fault, the type of fault, the driving status (the vehicle has not been started, the vehicle has been started but not driven, the vehicle has been started and has been driven, etc.), the driving speed, the operating temperature, the air temperature, the satellite positioning position, the navigation task (the departure location, the destination location, the estimated mileage and time, etc.), the number and identity of the people on the vehicle, etc. One or more contents. The second control component may call the vehicle-mounted sensor or the vehicle control system to obtain the current use status information. The "current" in the current use status information may refer to a period of time before the data to be transmitted is sent.

[0088] In step S3B, the second control component can use the data to be transmitted and the current usage status information as indexes, and determine the correlation between the data to be transmitted and the current usage status information by looking up a table (a pre-arranged data table) or other methods; it can also run a semantic recognition algorithm to identify the correlation between the data to be transmitted and the current usage status information.

[0089] In this embodiment, the correlation is a quantitative information that can be compared in size and can quantitatively represent the correlation degree between the data to be transmitted and the current usage status information.

[0090] For example, if the second vehicle-mounted device is a tire pressure sensor module, then the data to be transmitted obtained in step S1B may be tire pressure data, assuming that the specific content of the data to be transmitted is "2.0 bar" (indicating low tire pressure); if the specific content of the current usage status information obtained in step S2B is "current vehicle speed 30 km / h" (indicating low-speed driving), then when executing step S3B, it can be determined that the data to be transmitted has a lower correlation with the current usage status information (for example, the obtained correlation is "10"); if the specific content of the current usage status information obtained in step S2B is "current vehicle speed 80 km / h" (indicating high-speed driving), then when executing step S3B, it can be determined that the data to be transmitted has a higher correlation with the current usage status information (for example, the obtained correlation is "30").

[0091] For example, if the second vehicle-mounted device is an external water level sensor module, then the data to be transmitted obtained in step S1B may be external water level data, assuming that the specific content of the data to be transmitted is "the water level outside the vehicle is 100mm" (indicating that the car is in a waterlogged environment); if the specific content of the current usage status information obtained in step S2B is "the current location is a ground parking lot" (indicating that the risk of waterlogging is small), then when executing step S3B, it can be determined that the data to be transmitted has a lower correlation with the current usage status information (for example, the obtained correlation is "30"); if the specific content of the current usage status information obtained in step S2B is "the current location is an underground garage" (indicating that the risk of waterlogging is large), then when executing step S3B, it can be determined that the data to be transmitted has a higher correlation with the current usage status information (for example, the obtained correlation is "80").

[0092] In step S4B, the second control component calculates the total transmission period according to the amount of data to be transmitted. Since the performance of the first signal transceiver component and the second signal transceiver component is generally stable, that is, the data transmission rate between them is generally a fixed value, the time required to transmit the data to be transmitted can be calculated according to the amount of data to be transmitted and the data transmission rate to obtain the total transmission period.

[0093] In step S5B, refer to Figure 7 , the total transmission period is decomposed into n data transmission periods, namely, data transmission period 1, data transmission period 2, data transmission period 3, data transmission period 4, ... data transmission period n, that is, the sum of the durations of these n data transmission periods is equal to the duration of the total transmission period.

[0094] In this embodiment, the size of n in step S5B can be determined according to the correlation obtained in step S3B. Specifically, the greater the correlation between the data to be transmitted and the current usage status information, the greater the size of n, that is, the more data transmission periods are decomposed into the total transmission period, and the shorter the duration allocated to each data transmission period.

[0095] In step S6B, refer to Figure 7 , for data transmission period 1, a corresponding power transmission period 1 is set, wherein the duration of power transmission period 1 matches the duration of data transmission period 1. Specifically, the power to be consumed by the second vehicle-mounted device during data transmission period 1 can be predicted based on the average power consumption of the second vehicle-mounted device and the duration of data transmission period 1, and the power of power transmission of the multiplexed transmission line can be regarded as a fixed value. Based on the power to be consumed by the second vehicle-mounted device during data transmission period 1 and the fixed power transmission power, the power transmission duration is calculated as the duration of power transmission period 1.

[0096] Reference Figure 7For data transmission period 2, a corresponding power transmission period 2 is set, for data transmission period 3, a corresponding power transmission period 3 is set...for data transmission period n, a corresponding power transmission period n is set.

[0097] In step S7B, refer to Figure 7 , each power transmission period is inserted between each data transmission period, so as to obtain power transmission period 1, data transmission period 1, power transmission period 2, data transmission period 2...power transmission period n, data transmission period n (it can also be data transmission period 1, power transmission period 1, data transmission period 2, power transmission period 2...data transmission period n, power transmission period n) such that power transmission periods and data transmission periods alternate.

[0098] Specifically, for Figure 7 During the multiple data transmission periods shown, the second signal transceiver component can transmit the data to be transmitted as a continuous data stream (or data frame format) in a data stream order. For example, during data transmission period 1, the second signal transceiver component sends the first part of the data to be transmitted to the first signal transceiver component; during data transmission period 2, the second signal transceiver component reads the second part of the data to be transmitted from the end position of the first part of the data to be transmitted, and sends the second part of the data to be transmitted to the first signal transceiver component...

[0099] In this embodiment, the principle of executing steps S1B-S7B is that the correlation obtained in step S3B can indicate the correlation between the data to be transmitted and the current usage status information, that is, the usefulness or urgency of the data to be transmitted for the receiver (the first vehicle-mounted device) to deal with the current usage status information, and when the correlation is greater, step S5B decomposes the total transmission period into a larger number of data transmission periods with shorter single periods, and executes step S6B to equip each data transmission period with a corresponding power transmission period to provide sufficient power for the second vehicle-mounted device, so that the second vehicle-mounted device can transmit the data to be transmitted (or part of it) faster, and reduce the risk of data transmission failure caused by insufficient power due to the continuous duration of the data transmission period being too long, thereby ensuring data transmission under urgent tasks.

[0100] In this embodiment, the vehicle-mounted device system can be installed on the car, and the vehicle-mounted device system and other components on the car form a whole, so that the car as a whole has the effects of requiring fewer wiring harnesses and convenient maintenance.

[0101] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature, or it may be indirectly fixed or connected to the other feature. In addition, the descriptions of up, down, left, right, etc. used in the present disclosure are only relative to the relative positional relationship of the components of the present disclosure in the accompanying drawings. The singular forms of "a", "" and "the" used in the present disclosure are also intended to include the plural forms, unless the context clearly indicates other meanings. In addition, unless otherwise defined, all technical and scientific terms used in this embodiment have the same meaning as those generally understood by those skilled in the art. The terms used in the specification of this embodiment are only for describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this embodiment includes any combination of one or more related listed items.

[0102] It should be understood that, although the term first, second, third etc. may be adopted to describe various elements in the present disclosure, these elements should not be limited to these terms. These terms are only used to distinguish the same type of elements from each other. For example, without departing from the scope of the present disclosure, the first element may also be referred to as the second element, and similarly, the second element may also be referred to as the first element. The use of any and all examples or exemplary language ("for example", "such as" etc.) provided by the present embodiment is only intended to better illustrate embodiments of the present invention, and unless otherwise required, the scope of the present invention will not be limited.

[0103] It should be appreciated that embodiments of the present invention may be implemented or enforced by computer hardware, a combination of hardware and software, or by computer instructions stored in a non-transitory computer-readable memory. The method may be implemented in a computer program using standard programming techniques - including a non-transitory computer-readable storage medium configured with a computer program, wherein the storage medium so configured causes the computer to operate in a specific and predefined manner - according to the methods and drawings described in the specific embodiments. Each program may be implemented in a high-level procedural or object-oriented programming language to communicate with a computer system. However, if desired, the program may be implemented in assembly or machine language. In any case, the language may be a compiled or interpreted language. In addition, the program may be run on a programmed dedicated integrated circuit for this purpose.

[0104] In addition, the operations of the process described in this embodiment may be performed in any suitable order, unless otherwise indicated in this embodiment or otherwise clearly contradicted by the context. The process described in this embodiment (or variations and / or combinations thereof) may be performed under the control of one or more computer systems configured with executable instructions, and may be implemented as a code (e.g., executable instructions, one or more computer programs, or one or more applications) executed on one or more processors in common, by hardware or a combination thereof. A computer program includes a plurality of instructions that may be executed by one or more processors.

[0105] Further, the method can be implemented in any type of computing platform that is operably connected to a suitable computer, including but not limited to a personal computer, a minicomputer, a mainframe, a workstation, a network or distributed computing environment, a separate or integrated computer platform, or in communication with a charged particle tool or other imaging device, etc. Various aspects of the present invention can be implemented in machine-readable code stored on a non-transitory storage medium or device, whether removable or integrated into a computing platform, such as a hard disk, an optical read and / or write storage medium, a RAM, a ROM, etc., so that it can be read by a programmable computer, and when the storage medium or device is read by the computer, it can be used to configure and operate the computer to perform the process described herein. In addition, the machine-readable code, or part thereof, can be transmitted via a wired or wireless network. When such media includes instructions or programs that implement the above steps in conjunction with a microprocessor or other data processor, the invention of this embodiment includes these and other different types of non-transitory computer-readable storage media. When programmed according to the methods and techniques of the present invention, the present invention also includes the computer itself.

[0106] The computer program can be applied to input data to perform the functions of the present embodiment, thereby converting the input data to generate output data stored in a non-volatile memory. The output information can also be applied to one or more output devices such as a display. In a preferred embodiment of the present invention, the converted data represents a physical and tangible object, including a specific visual depiction of the physical and tangible object produced on the display.

[0107] The above are only preferred embodiments of the present invention. The present invention is not limited to the above embodiments. As long as the technical effects of the present invention are achieved by the same means, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention. Within the scope of protection of the present invention, its technical solutions and / or implementation methods may have various modifications and changes.

Claims

1. A vehicle-mounted equipment system, characterized in that: The vehicle-mounted equipment system comprises: A first vehicle-mounted device; the first vehicle-mounted device is provided with a first power supply communication multiplexing interface, and the first power supply communication multiplexing interface is used for multiplexing power supply power output and data transmission; Second vehicle-mounted device; the second vehicle-mounted device is provided with a second power supply communication multiplexing interface, and the second power supply communication multiplexing interface is used for multiplexing power supply power reception and data transmission; Multiplexing transmission line; the multiplexing transmission line connects the first power supply communication multiplexing interface and the second power supply communication multiplexing interface, and the multiplexing transmission line is used for multiplexing power supply power transmission and data transmission.

2. The vehicle-mounted equipment system according to claim 1, characterized in that: The vehicle-mounted equipment system further includes: Power supply equipment; the power supply equipment is used to output power supply energy to the first vehicle-mounted device.

3. The vehicle-mounted equipment system according to claim 2, characterized in that: The first vehicle-mounted device includes a first control component, a first signal transceiver component and a first switch; The first connection end of the first switching switch is used to connect to the power supply device, the second connection end of the first switching switch is used to connect to the first signal transceiver component, the third connection end of the first switching switch is connected to the first power supply communication multiplexing interface, and the controlled end of the first switching switch is connected to the control end of the first control component.

4. The vehicle-mounted equipment system according to claim 3, characterized in that: The second vehicle-mounted device includes a second control component, a second signal transceiver component, a second switch and an energy storage component; The discharge end of the energy storage component is connected to the second control component and the second signal transceiver component; The fourth connection end of the second switching switch is used to connect to the second power supply communication multiplexing interface, the fifth connection end of the second switching switch is used to connect to the second signal transceiver component, the sixth connection end of the second switching switch is connected to the charging end of the energy storage component, and the controlled end of the second switching switch is connected to the control end of the second control component.

5. The vehicle-mounted equipment system according to claim 4, characterized in that: The first control component and / or the second control component is used to determine a power transmission period and a data transmission period; The first control component is used to control the first connection end of the first switch to be connected with the third connection end and the second connection end to be disconnected from the third connection end during the power transmission period; and to control the second connection end of the first switch to be connected with the third connection end and the first connection end to be disconnected from the third connection end during the data transmission period; The second control component is used to control the sixth connection terminal of the second switching switch to be connected with the fourth connection terminal and the fifth connection terminal to be disconnected from the fourth connection terminal during the power transmission period; during the data transmission period, control the fifth connection terminal of the second switching switch to be connected with the fourth connection terminal and the sixth connection terminal to be disconnected from the fourth connection terminal.

6. The vehicle-mounted equipment system according to claim 5, characterized in that: The first signal transceiving component and the second signal transceiving component are used to perform data transmission during the data transmission period.

7. The vehicle-mounted equipment system according to claim 5 or 6, characterized in that: The first vehicle-mounted device further includes a current detection component; The current detection component is used to detect the current information of the power supply energy output by the first power supply communication multiplexing interface, and send the current information to the first control component.

8. The vehicle-mounted equipment system according to claim 7, characterized in that: When the first control component is used to determine the power transmission period and the data transmission period, the first control component is used to perform the following steps: Determining an end time of the power transmission period according to the current information; When the power transmission period ends, the data transmission period begins; Detecting the transmitted data, and when an end mark of the transmitted data is detected, determining an end time of the data transmission period; When the data transmission period ends, the power transmission period begins.

9. The vehicle-mounted equipment system according to claim 5 or 6, characterized in that: When the first control component and / or the second control component is used to determine the power transmission period and the data transmission period, the first control component and / or the second control component is used to perform the following steps: Get the data to be transmitted; Get the current usage status information of the car; Determining the correlation between the data to be transmitted and the current usage status information; Determining a total transmission period according to the amount of data to be transmitted; According to the correlation, the total transmission period is decomposed into a plurality of the data transmission periods; the number of each of the data transmission periods is positively correlated with the correlation, and the duration of any of the data transmission periods is negatively correlated with the correlation; For any of the data transmission periods, a corresponding power transmission period is set; the duration of the power transmission period matches the duration of the corresponding data transmission period; Each of the power transmission periods is inserted between each of the data transmission periods; wherein any of the power transmission periods is adjacent to the corresponding data transmission period.

10. An automobile, characterized in that: The automobile comprises the in-vehicle equipment system according to any one of claims 1-9.

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