Vehicle-mounted equipment system and vehicle

Abstract

The present invention discloses an on-board equipment system and an automobile. The on-board equipment system includes a first on-board equipment, a second on-board equipment, and a multiplexed transmission line. The multiplexed transmission line connects a first power supply and communication multiplexing interface on the first on-board equipment and a second power supply and communication multiplexing interface on the second on-board equipment, multiplexing for power supply and data transmission. The present invention can multiplex power supply and data transmission through the multiplexed transmission line. 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 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 automobile, reducing the volume of the wiring harness, reducing the cost of the wiring harness and the difficulty of wiring. The present invention is widely used in the field of automobile technology.

Description

Technical Field

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

[0002] Most devices installed in cars have data transmission capabilities and require power to operate, necessitating both power and data transmission cables. The large number of devices installed in a car necessitates a large number of power and data transmission cables, resulting in a large wiring harness. This, in turn, leads to high costs, bulk, and routing difficulties. Summary of the Invention

[0003] In view of the technical problems currently faced by automobiles when installing or using on-board equipment, such as high wiring harness cost, large size, and wiring difficulties, 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, the first power supply communication multiplexing interface being used for multiplexing power supply power output and data transmission;

[0006] 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 to multiplex 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] Furthermore, 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] Furthermore, the first control component and / or the second control component is used to determine a power transmission period and a data transmission period;

[0016] The first control component is used to control the first connection terminal of the first switch to be connected to the third connection terminal and to be disconnected from the second connection terminal during the power transmission period; and to control the second connection terminal of the first switch to be connected to the third connection terminal and to be disconnected from the first connection terminal 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 transceiver component and the second signal transceiver component are used to perform data transmission during the data transmission period.

[0019] Furthermore, the first vehicle-mounted device further 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] Furthermore, 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 based on the current information;

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

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

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

[0026] Furthermore, 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] Decomposing the total transmission period into a plurality of data transmission periods according to the correlation; the number of the data transmission periods is positively correlated with the correlation, and the length of any data transmission period 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, which includes the in-vehicle equipment system of the embodiment.

[0035] The beneficial effects of the present invention are as follows: 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 of 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 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 A schematic diagram of the structure of automobile-related technologies;

[0037] Figure 2 Schematic diagram of the structure 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 power transmission in an embodiment;

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

[0042] Figure 6 A schematic structural diagram of a vehicle-mounted device 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 onboard equipment of a car is set as follows Figure 1 As shown. 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 can be connected in a point-to-point or bus manner using data transmission wires, 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 automotive related technology shown, the power supply wires and the data transmission wires are both physical wires, for example, generally copper wires. This requires the simultaneous provision of the power supply wires and the data transmission wires, resulting in an excessive number of wires.

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

[0047] In this embodiment, the first on-board device may be the master controller of the entire vehicle, or a local controller within a network within the vehicle, while the second on-board device may be a component within 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, or an external water level sensor module. The number of first on-board devices and the number of second on-board devices may each be one or more. This embodiment uses one first on-board device and one second on-board device as an example for illustration.

[0048] In this embodiment, Figure 2 As shown, the vehicle-mounted device system further includes a power supply device. The power supply device can be a lead-acid battery, lithium-ion battery, or generator installed in the vehicle. The power supply device is connected to the first vehicle-mounted device via a power supply wire and 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 sending and receiving data) 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 to the outside 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 receiving and sending data) 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 it is 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 serve as a data transmission medium between the first power supply communication multiplexing interface and the second power supply communication multiplexing interface, and can also serve as an electric energy 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 illustrated vehicle-mounted device system is in operation, the power supply device directly transmits power to the first vehicle-mounted device via the power supply wire. The internal power supply component in the first vehicle-mounted device provides part of the power to the components in the first vehicle-mounted device, thereby enabling the first vehicle-mounted device to operate normally. The first vehicle-mounted device also outputs another portion of the power supplied 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. The internal power supply component in the second vehicle-mounted device receives the power from the second power supply communication multiplexing interface and provides it to the components in the second vehicle-mounted device, thereby enabling the second vehicle-mounted device to operate normally. When data is transmitted between the first vehicle-mounted device and the second vehicle-mounted device, data sent from the first vehicle-mounted device to the second vehicle-mounted device is output from the first power supply communication multiplexing interface, sent to the second power supply communication multiplexing interface via the multiplexed transmission line, and then received by the second vehicle-mounted device. Similarly, data sent from the second vehicle-mounted device to the first vehicle-mounted device is output from the second power supply communication multiplexing interface, sent to the first power supply communication multiplexing interface via the multiplexed transmission line, and then 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 can be an instruction sent by the first vehicle-mounted device to the second vehicle-mounted device, or it can be data generated or collected by the second vehicle-mounted device (for example, tire pressure data collected by the tire pressure sensor module, engine temperature data collected by the engine temperature sensor module, etc.), or it can 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 conductor, realizes the functions of the two physical conductors, 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 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 wiring harness volume, reducing the wiring harness cost and wiring difficulty.

[0054] In this embodiment, the specific structures of the first vehicle-mounted device and the second vehicle-mounted device are as follows: Figure 3 As shown. 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). 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 (CAN) protocol and the Local Interconnect Network (LIN) protocol.

[0055] Reference Figure 3 The first switching switch is provided with a controlled end, a first connecting end (1), a second connecting end (2) and a third connecting end (3), wherein the first connecting end (1) is used to connect to the power supply device, the second connecting end (2) is used to connect to the first signal transceiver component, the third connecting 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 switching switch is provided with a controlled terminal, a fourth connection terminal (4), a fifth connection terminal (5) and a sixth connection terminal (6), wherein the fourth connection terminal (4) is used to be connected to the second power supply communication multiplexing interface, the fifth connection terminal (5) is used to be connected to the second signal transceiver component, the sixth connection terminal (6) is connected to the charging terminal of the energy storage component, and the controlled terminal is connected to the control terminal of the second control component.

[0057] In this embodiment, the first switching switch and the second switching switch can 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 has a charging terminal and a discharging terminal. The charging terminal receives and stores the power supply energy and the discharging terminal releases the power 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 can be determined solely by the first control component, solely by the second control component, or jointly by the first and second control components. Specifically, the power transmission period and the data transmission period are each one or more time segments.

[0060] After determining the power transmission period and the data transmission period, referring to FIG4(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 to 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 to 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 Figure 4(b), during data transmission:

[0063] The first control component controls the second connection end (2) of the first switching switch to be connected to the third connection end (3) and the first connection end (1) to be disconnected from the third connection end (3); the second control component controls the fifth connection end (5) of the second switching switch to be connected to the fourth connection end (4) and the sixth connection end (6) to be disconnected from the fourth connection end (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 to 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 electric energy for the operation of 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, the Figure 5 As shown, power transmission periods and data transmission periods are performed alternately. For example, after one power transmission period ends, a data transmission period begins, and after this data transmission period ends, a power transmission period begins... and so on. Each power transmission period allows the second onboard device to store power for the next data transmission period (which is equivalent to the second onboard device replenishing the power consumed during the previous data transmission period), thereby ensuring that the second onboard device has sufficient power to operate during the data transmission period, thereby enabling data transmission between the second onboard device and the first onboard device.

[0066] By implementing time-division multiplexing on the multiplexed transmission line, the data transmission process and the power transmission process can be carried out in different time periods while ensuring that both the first on-board device and the second on-board device can operate smoothly. In other words, power transmission is not carried out during data transmission, which ensures that the data transmission process is not interfered with by power transmission, thereby ensuring the quality and efficiency of data transmission. The principle is that the second on-board device is generally a device with a lighter load, and the load generated by the data transmission process of the second on-board device accounts for a large proportion of its total load. Therefore, when the second on-board 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 on-board device. If time-division multiplexing is not performed, for example, if power is continuously transmitted through the multiplexed transmission line, then the power transmitted to the second on-board device through the multiplexed transmission line will fluctuate with changes in the data transmission rate of the second on-board device, etc. This fluctuation will interfere with the data transmission processes carried out simultaneously. 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 can 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 periodically collected current magnitudes.

[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 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 based on the current information;

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

[0072] S3A is detected when the data being transmitted is detected, the end of the flag is determined during the data transmission end time;

[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 via the multiplexed transmission line, and this power supply energy is basically stored in the energy storage component in the second on-board 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 on-board device is fully charged, the current that can be input to the second on-board device will decrease rapidly. Therefore, the first control component can use the time when "the current magnitude reduction rate reflected by the current information is greater than the first threshold" as the end time of the current power transmission period.

[0075] In step S2A, after reaching the end time of a power transmission period, the first control component immediately starts the data transmission period and operates according to the control logic of Figure 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 is sending or receiving 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, thereby achieving 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 independently or jointly determine the power transmission period and the data transmission period. That is, the first control component or the second control component may independently or jointly determine when the power transmission period begins and ends, and when the data transmission period begins and ends. Specifically, taking the example of the second vehicle-mounted device needing to send data to the first vehicle-mounted device, and the second control component independently determining the power transmission period and the data transmission period, the second control component may perform the following steps:

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

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

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

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

[0083] S5B. Based on 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 usage status information may specifically include one or more of the following: the presence or absence of a vehicle fault, fault type, driving status (not started, started but not moving, started and moving), driving speed, operating temperature, air temperature, satellite positioning location, navigation mission (departure location, destination location, estimated mileage and travel time, etc.), and the number and identities of passengers on board. The second control component may utilize onboard sensors or the vehicle control system to obtain the current usage status information. The "current" in the current usage status information may refer to the period 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 quantitative information that can be compared in size and can quantitatively represent the degree of correlation 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 low 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 high 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 water-logged 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 low 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 high 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 based on the amount of data to be transmitted. Since the performance of the first and second signal transceiver components is generally stable, that is, the data transmission rate between them is generally a fixed value, the total transmission period can be obtained by calculating the time required to transmit the data based on the amount of data to be transmitted and the data transmission rate.

[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 value of n in step S5B can be determined based on the correlation obtained in step S3B. Specifically, the greater the correlation between the data to be transmitted and the current usage status information, the larger n is. In other words, the total transmission period is decomposed into more data transmission periods, and the duration allocated to each data transmission period is shorter.

[0095] In step S6B, refer to Figure 7 For data transmission period 1, a corresponding power transmission period 1 is set, where the duration of power transmission period 1 matches the duration of data transmission period 1. Specifically, the power to be consumed by the second on-board device during data transmission period 1 can be predicted based on the average power consumption of the second on-board device and the duration of data transmission period 1. The power of power transmitted by the multiplexed transmission line can be regarded as a fixed value. Based on the power to be consumed by the second on-board 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 alternation of power transmission periods and data transmission periods.

[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 in a data frame format, etc.) in a sequential manner, such as in a data stream sequence. For example, during data transmission period 1, the second signal transceiver component sends the first portion 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 portion of the data to be transmitted starting from the end position of the first portion of the data to be transmitted and sends the second portion 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 degree of 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 recipient (the first vehicle-mounted device) to cope 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 this disclosure are only relative to the relative positional relationships of the components of the present disclosure in the accompanying drawings. The singular forms of "a", "" and "the" used in this disclosure are also intended to include the plural forms, unless the context clearly indicates otherwise. 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 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 present disclosure may adopt the term first, second, third etc. to describe various elements, these elements should not be limited to these terms.These terms are only used to distinguish the elements of the same type 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 can be implemented or practiced by computer hardware, a combination of hardware and software, or by computer instructions stored in a non-transitory computer-readable memory. The methods can 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 figures described in the specific embodiments. Each program can be implemented in a high-level procedural or object-oriented programming language to communicate with the computer system. However, if desired, the program can be implemented in assembly or machine language. In any case, the language can be a compiled or interpreted language. In addition, the program can be run on a programmed application-specific integrated circuit for this purpose.

[0104] In addition, the operations of the processes 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 processes 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 code (e.g., executable instructions, one or more computer programs, or one or more applications) that is executed collectively on one or more processors, by hardware, or a combination thereof. A computer program includes multiple instructions that can be executed by one or more processors.

[0105] Furthermore, 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 as 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, RAM, 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 portions thereof, can be transmitted over 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 that is 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 merely preferred embodiments of the present invention. The present invention is not limited to the aforementioned embodiments. As long as the technical effects of the present invention are achieved by the same means, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention. Within the scope of protection of the present invention, various modifications and variations of the technical solutions and / or implementation methods may be made.

Claims

1. A vehicle-mounted equipment system, characterized in that: The vehicle-mounted equipment system includes: A first vehicle-mounted device; the first vehicle-mounted device is provided with a first power supply communication multiplexing interface, which is used to multiplex power supply power output and data transmission; 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 switch is used to connect to the power supply device, the second connection end of the first switch is used to connect to the first signal transceiver component, the third connection end of the first switch is connected to the first power supply communication multiplexing interface, and the controlled end of the first switch is connected to the control end of the first control component; 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 to multiplex power supply power reception and data transmission; the second vehicle-mounted device includes a second control component, a second signal transceiver component, a second switching 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 be connected to the second power supply communication multiplexing interface, the fifth connection end of the second switching switch is used to be connected 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; the first control component and / or the second control component are used to determine the power transmission period and the data transmission period; 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 to multiplex power supply power transmission and data transmission; 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; Decomposing the total transmission period into a plurality of data transmission periods according to the correlation; the number of the data transmission periods is positively correlated with the correlation, and the length of any data transmission period 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.

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 1, wherein: The first control component is used to control the first connection terminal of the first switch to be connected to the third connection terminal and to be disconnected from the second connection terminal during the power transmission period; and to control the second connection terminal of the first switch to be connected to the third connection terminal and to be disconnected from the first connection terminal 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.

4. The vehicle-mounted equipment system according to claim 3, wherein: The first signal transceiving component and the second signal transceiving component are used to perform data transmission during the data transmission period.

5. The vehicle-mounted equipment system according to claim 3 or 4, 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.

6. The vehicle-mounted equipment system according to claim 5, 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 based on the current information; When the power transmission period ends, the data transmission period begins; detecting the transmitted data, and determining an end time of the data transmission period when an end mark of the transmitted data is detected; When the data transmission period ends, the power transmission period begins.

7. An automobile, characterized in that: The automobile comprises the in-vehicle equipment system according to any one of claims 1 to 6.

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