Vehicle-mounted communication terminal power supply framework and vehicle

Abstract

The utility model relates to a vehicle-mounted communication terminal power supply framework, and belongs to the technical field of vehicle networking, and the vehicle-mounted communication terminal power supply framework comprises a main power supply, a standby power supply, a detection module, a switching unit, an antenna module, a satellite communication module, an electric control module, a first circuit and a second circuit. The main power supply is electrically connected with the antenna module and the satellite communication module; the detection module is connected with the main power supply, detects an electric signal output state of the main power supply and outputs to the electric control module; the switching unit is connected with the electric control module and the standby power supply, and the switching unit is controlled by the electric control module and controls the on-off of the standby power supply; the standby power supply is electrically connected with the antenna module through the first circuit; the standby power supply is electrically connected with the satellite communication module through the second circuit. When the main power supply fails, the standby power supply can directly supply power to the antenna module, the satellite communication module and the conventional module through the power supply architecture. And unused modules can be intelligently controlled to be closed, so that the operation time of the key satellite communication module is ensured.

Description

Technical Field

[0001] This application relates to the technical field of vehicle networking, and in particular to a power supply architecture for an in-vehicle communication terminal and a vehicle. Background Technology

[0002] Automobiles, as an extremely important means of transportation in modern life, have a wide range of uses and come in many types. Automobiles include passenger cars, commercial vehicles, and public transportation vehicles. They can be classified by power source into gasoline-powered cars, electric cars, and hybrid vehicles. Their intricate construction is centered on the power system, which provides kinetic energy for movement, whether it's the internal combustion engine in a gasoline car or the electric motor in an electric car. The chassis, like a solid skeleton, encompasses the transmission, driving, steering, and braking systems, ensuring power transmission, smooth driving, directional control, and safe braking. The body not only protects occupants and cargo, but its design also relates to aesthetics and aerodynamic performance.

[0003] Currently, vehicles include a main power supply and a backup power supply. When the main power supply fails, the backup power supply provides power to critical vehicle modules, such as communication modules, antenna modules, and positioning modules. In existing technology, when the main power supply fails, a power management chip is typically used to control the backup power supply for different modules.

[0004] However, power management chips have many limitations. For example, they typically have fixed functions and specifications, which may not meet the power requirements of certain special application scenarios, thus limiting their use. Furthermore, while power management chips can improve the efficiency and stability of power systems, their cost may be higher compared to a custom-built power tree. Utility Model Content

[0005] This application achieves intelligent power management for vehicle-mounted communication terminals by constructing a dual-power collaborative power supply architecture. The detection module monitors voltage fluctuations and failure states of the main power supply in real time. When an anomaly is detected in the main power supply, the electronic control module immediately activates the switching unit to switch to the backup power system. This power architecture enables power supply to different modules, solving the technical problems of limited and costly power management chips in oil refining technology.

[0006] Therefore, this application aims to provide a power architecture for an in-vehicle communication terminal. In the event of a main power failure, the antenna module, satellite communication module, and conventional modules can be directly powered through the power architecture using a backup power source. Furthermore, it can intelligently control the shutdown of unused modules, thereby ensuring the operational time of the critical satellite communication module. This significantly reduces the cost pressure and functional limitations associated with traditional power management chips. The modular design of this architecture gives the power system greater scalability and maintainability.

[0007] To achieve the above objectives, in a first aspect, this application provides a power supply architecture for an in-vehicle communication terminal, comprising:

[0008] Main power supply, backup power supply, detection module, switching unit, antenna module, satellite communication module, electronic control module, first circuit and second circuit;

[0009] The main power supply is electrically connected to the antenna module and the satellite communication module;

[0010] The detection module is connected to the main power supply, detects the status of the main power supply output electrical signal, and outputs it to the electronic control module.

[0011] The switching unit is connected to the electronic control module and the backup power supply. The switching unit is controlled by the electronic control module and controls the start and stop of the backup power supply.

[0012] The backup power supply is electrically connected to the antenna module through the first circuit;

[0013] The backup power supply is electrically connected to the satellite communication module through the second circuit;

[0014] The electronic control module is electrically connected to the backup power supply, and the electronic control module controls the on / off state of the first circuit.

[0015] In this technical solution, intelligent power management of the vehicle-mounted communication terminal is achieved by constructing a dual-power collaborative power supply architecture. The detection module monitors the voltage fluctuations and failure states of the main power supply in real time. When an anomaly is detected, the electronic control module immediately activates the switching unit to switch to the backup power system. Through a discrete power supply circuit design, the first circuit is dedicated to powering the antenna module, while the second circuit independently supplies power to the satellite communication module. This physically isolated power supply effectively avoids power interference problems. The electronic control module's intelligent control of the first circuit can dynamically adjust the power supply strategy according to actual needs, ensuring the continuous operation of the critical satellite communication module. This setup also prevents interference from other modules or chips to satellite communication. This solution eliminates the need for a power chip in the initial stages, thus avoiding the functional and specification limitations of power chips. This significantly reduces the cost pressure and functional limitations associated with traditional power management chips. The modular design of this architecture gives the power system higher scalability and maintainability.

[0016] In some embodiments of this application, a third circuit is also included;

[0017] The backup power supply is electrically connected to the conventional module via the third circuit;

[0018] The electronic control module controls the on / off state of the third circuit.

[0019] In this technical solution, when the main power supply fails, the backup power supply also powers the conventional modules via a third circuit. These conventional modules include units such as microphones and radios. Through intelligent control of the third circuit by the electronic control module, the system can flexibly select whether to supply power to the conventional modules based on actual operating conditions, prioritizing power supply to the core satellite communication module in emergencies. This management mechanism effectively extends the continuous power supply time of the backup power supply to the satellite communication module.

[0020] In some embodiments of this application, the first circuit includes a first step-down chip, the input terminal of which is connected to the backup power supply, and the output terminal of which is connected to the antenna module.

[0021] In this technical solution, a first step-down chip reduces the output voltage of the backup power supply to meet the input voltage requirements of the antenna module. Existing power management chips typically have fixed functions and specifications, which may not meet the power requirements of certain special application scenarios, thus limiting their use. Therefore, compared to power management chips, the above design is more reasonable and reduces the possibility of failure.

[0022] In some embodiments of this application, the second circuit includes a second step-down chip and a step-down module;

[0023] The input terminal of the second step-down chip is connected to the backup power supply, and the output terminal is connected to the input terminal of the step-down module. The step-down module includes multiple voltage signal output terminals, which are used to output voltages of different voltage levels. Each output terminal of the step-down module is connected to the input terminal of the satellite communication module.

[0024] In this technical solution, the backup power supply voltage is reduced by a second step-down chip and then further reduced by a step-down module to output two different voltages, thus meeting the input voltage requirements of the satellite communication module. Existing power management chips typically have fixed functions and specifications, which may not meet the power requirements of certain special application scenarios, thus limiting their use. Therefore, compared to power management chips, this design is more reasonable and reduces the possibility of failure.

[0025] In some embodiments of this application, the buck module includes a third buck chip and a fourth buck chip connected in parallel.

[0026] In the technical solution, the current output by the backup power supply is stepped down by the second step-down chip and then stepped down again by the third and fourth chips respectively. The voltage output by the third step-down chip is different from that output by the fourth chip to meet the requirement of the satellite communication module to have two different voltages.

[0027] In some embodiments of this application, the third circuit includes a first boost chip, the input terminal of which is connected to the backup power supply, and the output terminal of which is connected in parallel with at least one boost circuit and at least one buck circuit; the boost circuit and the buck circuit are used to connect to the corresponding conventional unit in the conventional module.

[0028] In this technical solution, some conventional units require higher voltages, while others require lower voltages. Therefore, they are connected to different boost and buck circuits respectively. The boost circuit increases the voltage and outputs it to the conventional units requiring higher voltage, while the buck circuit decreases the voltage and outputs it to the conventional units requiring lower voltage. This achieves the power supply requirements for the different conventional units.

[0029] In some embodiments of this application, the step-down circuit includes a fifth step-down chip;

[0030] The boost circuit includes a second boost chip.

[0031] In this technical solution, the backup power supply output is stepped down by a fifth step-down chip in the buck circuit before being sent to the corresponding conventional unit. Conversely, the backup power supply output is stepped up by a second boost chip before being sent to the corresponding conventional unit. Compared to conventional boost and buck circuits, using a second boost chip and a fifth step-down chip is simpler, reduces complexity, and facilitates circuit layout.

[0032] In some embodiments of this application, the third circuit includes a third detection unit, which is connected to the conventional module and the electronic control module, and is used to detect whether the conventional module is enabled; and to transmit the detection signal to the electronic control module.

[0033] The third circuit includes a third primary switch, and the electronic control module is connected to the third primary switch to control the on / off state of the third circuit.

[0034] In the technical solution, when the third detection unit detects that the current conventional module is not in use, the electronic control module controls the third circuit to disconnect from the backup power supply. In emergencies, priority is given to ensuring the power supply to the core satellite communication module. This management mechanism effectively extends the continuous power supply time of the backup power supply to the satellite communication module.

[0035] In some embodiments of this application, at least one boost circuit and at least one buck circuit are provided with a secondary switch, and the electronic control module is connected to the secondary switch to control the on / off state of the secondary switch.

[0036] In the technical solution, when the third detection unit detects that one or more conventional units are not in use, it can control the secondary switches on the corresponding boost or buck circuits through the electronic control module to turn them on and off; thereby cutting off power to the unused conventional units and conserving power; effectively extending the continuous power supply time of the backup power supply to the satellite communication module.

[0037] In some embodiments of this application, the first circuit is provided with a first detection unit and a first-level switch, both of which are connected to the electronic control module. When the first detection unit detects that the antenna module is not enabled, it transmits a signal to the electronic control module, which then controls the first-level switch to cut off the first circuit.

[0038] In this technical solution, the power supply to the antenna module can be cut off when it is not in use. This ensures the continuous operation of the critical satellite communication module and effectively extends the continuous power supply time from the backup power source.

[0039] Secondly, this application provides a vehicle, comprising:

[0040] The vehicle body is equipped with an electronic control system, which includes the aforementioned vehicle communication terminal power architecture.

[0041] In this technical solution, when the vehicle experiences an accident or main power failure, the antenna module, satellite communication module, and conventional modules can be directly powered through the power architecture via a backup power source. Furthermore, unused modules can be intelligently shut down to ensure the operational time of critical satellite communication modules. This significantly reduces the cost and functional limitations associated with traditional power management chips. The modular design of this architecture also enhances the power system's scalability and maintainability.

[0042] As can be seen from the above technical solutions, additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0043] Figure 1 This is one of the architecture diagrams of the power supply architecture of an in-vehicle communication terminal according to an embodiment of this application;

[0044] Figure 2 This is the second architectural diagram of the power supply architecture of the vehicle communication terminal according to the embodiments of this application;

[0045] Figure 3 This is the third architectural diagram of the power supply architecture of the vehicle communication terminal according to the embodiments of this application;

[0046] Figure 4This is the fourth architectural diagram of the power supply architecture of the vehicle communication terminal according to the embodiments of this application;

[0047] Figure 5 This is the fifth diagram of the power supply architecture of the vehicle communication terminal according to the embodiments of this application.

[0048] In the above diagrams: 100, backup power supply; 200, electronic control module; 300, first detection unit; 400, first-level switch; 500, first buck chip; 600, antenna module; 700, second detection unit; 800, second-level switch; 900, second buck chip; 110, third buck chip; 120, fourth buck chip; 130, satellite communication module; 140, third detection unit; 150, third-level switch; 160, first boost chip; 170, second-level switch; 180, second boost chip; 190, fifth buck chip; 210, conventional module; 220, conventional unit. Detailed Implementation

[0049] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0050] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0051] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0052] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0053] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0054] It should be noted that in the automotive field, vehicles have both a main power supply and a backup power supply. The main power supply powers the antenna module, satellite communication module, and other conventional modules in the vehicle. When the main power supply fails, it automatically switches to the backup power supply to power the antenna module, satellite communication module, and other conventional modules.

[0055] In existing technologies, power management chips are typically used to distribute the current output from the backup power supply to antenna modules, satellite communication modules, and conventional modules. However, using power management chips has several limitations. Power management chips usually have fixed functions and specifications, which may not meet the power requirements of certain special application scenarios, thus limiting their use. Furthermore, while power management chips can improve the efficiency and stability of power systems, they are more expensive than custom-designed power trees.

[0056] In addition, the satellite communication module has very high requirements for the audio input, so conventional power architectures may produce ripple and other interference that affect call quality.

[0057] Based on this, this application proposes a power supply architecture for an in-vehicle communication terminal and a vehicle. Through the design of the power supply architecture, the effect of using backup power supply is achieved, and the circuit can be controlled according to demand to ensure the operation of important satellite communication modules. This solves the problems of low efficiency, poor stability and high cost caused by the use of power management chips in the prior art.

[0058] In the following, embodiments of this application will be described in detail with reference to the accompanying drawings.

[0059] As attached Figures 1 to 5 As shown in an illustrative embodiment of the vehicle-mounted communication terminal power architecture of this application, the vehicle-mounted communication terminal power architecture includes: a main power supply and a backup power supply 100. The main power supply supplies power to various or some modules on the vehicle. When the main power supply fails, the backup power supply 100 supplies power to the modules on the vehicle.

[0060] In some embodiments, the power architecture of the vehicle communication terminal further includes a detection module and a switching unit. The detection module is connected to the main power supply, detects the status of the main power supply's output electrical signal, and outputs it to the electronic control module 200. The switching unit is connected to the electronic control module 200 and the backup power supply 100, and is controlled by the electronic control module 200 to control the activation and deactivation of the backup power supply 100. When the detection module detects that the main power supply cannot provide power, the switching unit activates the backup power supply 100 to provide power to the vehicle's modules. It is worth noting that the output electrical signal of the main power supply can be a current signal or a voltage signal, etc.

[0061] In some embodiments, the power architecture of the vehicle-mounted communication terminal further includes an antenna module 600, a satellite communication module 130, an electronic control module 200, a first circuit, and a second circuit. The main power supply is electrically connected to the antenna module 600 and the satellite communication module 130. A backup power supply 100 is electrically connected to the antenna module 600 via the first circuit; the backup power supply 100 supplies power to the antenna module 600 via the first circuit. The backup power supply 100 is electrically connected to the satellite communication module 130 via the second circuit; the backup power supply 100 supplies power to the satellite communication module 130 via the second circuit. The electronic control module 200 is electrically connected to the backup power supply 100, and the electronic control module 200 controls the on / off state of the first circuit.

[0062] The above solution achieves intelligent power management for the vehicle-mounted communication terminal by constructing a dual-power collaborative power supply architecture. The detection module monitors the voltage fluctuations and failure status of the main power supply in real time. When an anomaly is detected, the electronic control module 200 immediately activates the switching unit to switch to the backup power supply system 100. Through a discrete power supply circuit design, the first circuit is dedicated to powering the antenna module 600, while the second circuit independently supplies power to the satellite communication module 130. This physically isolated power supply effectively avoids power interference problems. The intelligent control of the first circuit by the electronic control module 200 can dynamically adjust the power supply strategy according to actual needs, ensuring the continuous operation of the critical satellite communication module. This setup also prevents interference from other modules or chips to satellite communication. This solution eliminates the need for a power supply chip in the initial stages, thus avoiding the functional and specification limitations of power supply chips. It significantly reduces the cost pressure and functional limitations associated with traditional power management chips. The modular design of this architecture gives the power system higher scalability and maintainability.

[0063] In some embodiments, the electronic control module 200 may be a microcontroller unit.

[0064] In some embodiments, when the switching unit turns on the backup power supply 100, it also simultaneously cuts off the main power supply.

[0065] In some embodiments, when the detection module detects an abnormal state of the main power supply output electrical signal, the power control module 200 controls the switching unit to turn on the backup power supply 100.

[0066] Specifically, abnormal output electrical signal status of the main power supply can be caused by the main power supply output voltage being lower than the normal voltage threshold, the main power supply output voltage being higher than the normal voltage threshold, or the main power supply output voltage suddenly dropping or rising.

[0067] In one embodiment, the switching unit can be a switching switch. When the main power supply output electrical signal is abnormal, the electronic control module 200 controls the switching switch to turn on the backup power supply 100 while simultaneously turning off the main power supply.

[0068] In another embodiment, the switching unit can construct dual redundant channels for optocoupler-isolated solid-state relays, with the main power supply and backup power supply 100 each outputting through independent relays. The electronic control module 200 monitors the status of the two relays in real time via a comparator. When the main power supply fails, the optocoupler-isolated solid-state relay in the backup channel is triggered and turned on.

[0069] In some embodiments, the first circuit includes a first step-down chip 500. The input terminal of the first step-down chip 500 is connected to the backup power supply 100, and the output terminal is connected to the antenna module 600. The first step-down chip 500 reduces the voltage output by the backup power supply 100 to meet the input voltage requirements of the antenna module 600. Power management chips used in the prior art typically have fixed functions and specifications, which may not meet the power requirements of certain special application scenarios, thus limiting their use. Therefore, compared with power management chips, the above solution is more reasonable and reduces the possibility of failure.

[0070] In some embodiments, the first buck chip 500 is preferably a switching buck regulator, which has the advantage of high efficiency.

[0071] In addition, the first step-down chip 500 can also be a programmable logic controller, a field-programmable gate array, a digital signal processor, etc. The specific model of the first step-down chip 500 is selected according to actual needs, and its model is an existing structure, so it will not be described in detail here.

[0072] In some embodiments, the antenna module 600 can be a V2X compensator (Vehicle to Everything).

[0073] Please refer to Figure 5 In some embodiments, a first detection unit 300 is provided within the first circuit. When the first detection unit 300 detects that the antenna module 600 is not enabled, it transmits a signal to the electronic control module 200, which then disconnects the first circuit. When the antenna module 600 is not in use, the power supply to the antenna module 600 can be cut off. This ensures the continuous operation of the critical satellite communication module and effectively extends the continuous power supply time of the backup power supply 100 to the satellite communication module 130.

[0074] Furthermore, a first-level switch 400 is provided within the first circuit, which is used to connect or disconnect the first circuit. Both the first detection unit 300 and the first-level switch 400 are connected to the electronic control module 200. When the first detection unit 300 detects that the antenna module 600 is not enabled, it transmits a signal to the electronic control module 200, which then controls the first-level switch 400 to disconnect the first circuit. When the first circuit is not in use, the power supply to the first circuit is cut off, conserving power from the backup battery 100 and improving battery life.

[0075] Furthermore, the first detection unit 300 includes, but is not limited to, the following forms: current sensor, voltage comparator circuit, logic level detector, etc.

[0076] In some embodiments, when the first detection unit 300 detects that the antenna module 600 is activated, it transmits a signal to the electronic control module 200, which then connects to the first circuit. At this time, the backup power supply 100 supplies power to the antenna module 600. This allows the antenna module 600 to be activated promptly as needed, facilitating user operation.

[0077] Specifically, when the first detection unit 300 detects that the antenna module 600 is enabled, it transmits a signal to the electronic control module 200, and the electronic control module 200 controls the first-level switch 400 to connect the first circuit.

[0078] It is worth noting that some antenna modules 600 do not require power supply when in sleep mode. Based on this characteristic, the first detection unit 300 and the first-level switch 400 can be omitted in the first circuit to save costs.

[0079] In some embodiments, the second circuit includes a second step-down chip 900 and a step-down module. The input terminal of the second step-down chip 900 is connected to the backup power supply 100, and the output terminal is connected to the input terminal of the step-down module. The step-down module includes multiple voltage signal output terminals, each used to output voltages of different levels. Each output terminal of the step-down module is connected to the input terminal of the satellite communication module 130. After the voltage of the backup power supply 100 is reduced by the second step-down chip 900, it is further reduced by the step-down module to output two different voltages, thus meeting the input voltage requirements of the satellite communication module 130. Existing power management chips typically have fixed functions and specifications, which may not meet the power requirements of certain special application scenarios, thus limiting their use. Therefore, compared with power management chips, the above solution is more reasonable and reduces the possibility of failure.

[0080] In some embodiments, the satellite communication module 130 can be a satellite module PA (Power Amplifier).

[0081] In some embodiments, the second buck chip 900 is preferably a switching buck regulator.

[0082] In addition, the first step-down chip 500 can also be used for programmable logic controllers, field-programmable gate arrays, digital signal processors, etc.

[0083] In some embodiments, the backup power supply 100 outputs a voltage of 12V. A second step-down chip 900 reduces the output voltage of the backup power supply 100 to 5V and a current of 6A, which is defined as VOUT (output voltage). The step-down module further reduces VOUT and outputs 4.5V and 3.8V voltages respectively. The 4.5V and 3.8V voltages are connected to and power the satellite communication module 130. It is worth noting that the 4.5V and 3.8V voltages are the voltages required by the satellite communication module 130; therefore, the above scheme provides the necessary voltages for the satellite communication module 130.

[0084] In some embodiments, the step-down module includes a third step-down chip 110 and a fourth step-down chip 120 connected in parallel. The current output by the backup power supply 100 is stepped down by the second step-down chip 900 and then stepped down again by the third and fourth chips respectively. The voltage output by the third step-down chip 110 is different from the voltage output by the fourth chip to meet the requirement of the satellite communication module 130 to have two different voltages.

[0085] Preferably, the third buck chip 110 and the fourth buck chip 120 are a low-dropout linear regulator and a DC-to-DC voltage converter, respectively. The low-dropout linear regulator can maintain a low voltage difference between the input and output while providing a stable voltage output to the load. The DC-to-DC voltage converter transfers energy by controlling the switching components to achieve voltage conversion. It has advantages such as high efficiency, high power density, and wide input voltage tolerance.

[0086] It is worth noting that the specific models of the third buck chip 110 and the fourth buck chip 120 include, but are not limited to, the following: switching buck regulator, programmable logic controller, field programmable gate array, digital signal processor, etc. The specific models of the third buck chip 110 and the fourth buck chip 120 are selected according to actual needs. Their models are existing structures, so they will not be described in detail here.

[0087] In another embodiment, the second circuit may include a second detection unit 700 and a second primary switch 800. Both the second detection unit 700 and the second primary switch 800 are connected to the electronic control module 200. The second primary switch 800 is used to connect or disconnect the second circuit. When the second detection unit 700 detects abnormal power consumption or a malfunction in the satellite communication module 130, it transmits a signal to the electronic control module 200. The electronic control module 200 then controls the second primary switch 800 to disconnect the second circuit, thereby stopping the power supply to the satellite communication module 130. When the satellite communication module 130 malfunctions and cannot be used, the power supply to the satellite communication module 130 can be cut off, and the power from the backup power supply 100 can be applied to the antenna module 600 and / or the conventional module 210. This avoids the useless loss of power from the backup power supply 100, conserves power, and extends battery life.

[0088] In some embodiments, when the second detection unit 700 detects that the satellite communication module 130 is enabled or that the satellite communication module 130 has returned to normal, it transmits a signal to the electronic control module 200, which then controls the second-level switch 800 to connect the second circuit. At this time, the backup power supply 100 supplies power to the satellite communication module 130. Alternatively, a signal can be manually input to the electronic control module 200 to connect the second-level switch 800 to the second circuit. This allows for automatic or manual restoration of the satellite communication module 130's usability in emergency situations.

[0089] Furthermore, the second detection unit 700 includes, but is not limited to, the following forms: current sensor, voltage comparator circuit, logic level detector, etc. The specific model of the second detection unit 700 is selected according to actual needs, and its model is an existing structure, so it will not be described in detail here.

[0090] In some embodiments, a second-stage switch 800 is disposed between the second step-down chip 900 and the backup power supply 100. The second-stage switch 800 directly disconnects all power to the satellite communication module 130.

[0091] In other embodiments, the second-level switch 800 may be located between the third step-down chip 110 and the second step-down chip 900, or between the third step-down chip 110 and the satellite communication module 130.

[0092] In other embodiments, the second-level switch 800 may be located between the fourth step-down chip 120 and the second step-down chip 900, or between the fourth step-down chip 120 and the satellite communication module 130.

[0093] In some embodiments, the power architecture of the vehicle-mounted communication terminal further includes a third circuit; the backup power supply 100 is electrically connected to the conventional module 210 through the third circuit; the backup power supply 100 supplies power to the conventional module 210 through the third circuit; and the electronic control module 200 controls the on / off state of the third circuit. When the main power supply fails, the backup power supply 100 also supplies power to the conventional module 210 through the third circuit. The conventional module 210 includes units such as a microphone and a radio. Through the intelligent control of the third circuit by the electronic control module 200, it is possible to flexibly select whether to supply power to the conventional module 210 according to the actual working conditions, and prioritize the power supply to the core satellite communication module in emergency situations. This management mechanism effectively extends the continuous power supply time of the backup power supply 100 to the satellite communication module 130.

[0094] In some embodiments, a third detection unit 140 is provided within the third circuit. The third detection unit 140 is connected to the conventional module 210 and the electronic control module 200, and is used to detect whether the conventional module 210 is enabled; and transmit the detection signal to the electronic control module 200; the third detection unit 140 detects the status of the conventional module 210 and outputs it to the electronic control module 200; the electronic control module 200 connects or disconnects the third circuit. When the third detection unit 140 detects that the conventional module 210 is not in use, has abnormal power consumption, or is malfunctioning, it can disconnect the third circuit to ensure the power supply to the satellite communication module 130.

[0095] In some embodiments, a third-level switch 150 is also provided in the third circuit. Both the third detection unit 140 and the third-level switch 150 are connected to the power control module 200. The third-level switch 150 is used to connect or disconnect the third circuit. When the third detection unit 140 detects that the conventional module 210 is not in use, has abnormal power consumption, or is malfunctioning, the power control module 200 controls the third-level switch to disconnect, thereby disconnecting the third circuit from the backup power supply 100. In emergencies, priority is given to ensuring the power supply to the core satellite communication module. This management mechanism effectively extends the continuous power supply time of the backup power supply 100 to the satellite communication module 130.

[0096] In some embodiments, when the third detection unit 140 detects that the conventional module 210 has been enabled and returned to normal, it transmits a signal to the electronic control module 200, and the electronic control module 200 controls the third primary switch 150 to connect the third circuit to restore power supply to the conventional module 210.

[0097] Furthermore, the third detection unit 140 includes, but is not limited to, the following forms: current sensor, voltage comparator circuit, logic level detector, etc. The specific model of the third detection unit 140 is selected according to actual needs, and its model is an existing structure, so it will not be described in detail here.

[0098] In some embodiments, the third circuit includes a first boost chip 160, the input of which is connected to the backup power supply 100, and the output of which is connected in parallel to at least one boost circuit and at least one buck circuit. The boost circuit and buck circuit are used to connect to the corresponding conventional units 220 in the conventional module 210. Some conventional units 220 require higher voltages, while others require lower voltages. Therefore, they are connected to different boost circuits and buck circuits respectively. The boost circuit increases the voltage and outputs it to the conventional unit 220 that requires higher voltage, and the buck circuit decreases the voltage and outputs it to the conventional unit 220 that requires lower voltage. This satisfies the power supply requirements of different conventional units 220.

[0099] In some embodiments, the third-stage switch 150 is disposed between the backup power supply 100 and the first boost chip 160. Alternatively, the third-stage switch 150 is disposed at the output terminal of the first boost chip 160.

[0100] Preferably, the first boost chip 160 is a boost DC-DC converter chip. It has advantages such as high energy conversion efficiency, wide input voltage range adaptability, high output voltage, low power consumption, and high reliability.

[0101] In another embodiment, the specific model of the first boost chip 160 includes, but is not limited to, the following: AC-DC boost chip and DC-DC boost chip. The specific model of the first boost chip 160 is selected according to actual needs, and its model is an existing structure, so it will not be described in detail here.

[0102] In some embodiments, the buck circuit includes a fifth buck chip 190; the boost circuit includes a second boost chip 180. In the buck circuit, the fifth buck chip 190 steps down the voltage output from the backup power supply 100 before sending it to the corresponding conventional unit 220. The second boost chip 180 boosts the voltage output from the backup power supply 100 before sending it to the corresponding conventional unit 220. Compared to conventional boost and buck circuits, using the second boost chip 180 and the fifth buck chip 190 is simpler, reduces complexity, and facilitates circuit layout.

[0103] In some embodiments, at least one boost circuit and at least one buck circuit are provided with a secondary switch 170, and the electronic control module 200 is connected to the secondary switch 170 to control the on / off state of the secondary switch 170. The third detection unit 140 can also detect whether the conventional units 220 on each boost circuit and each buck circuit are in use. When the third detection unit 140 detects that one or more conventional units 220 are not in use, it can control the secondary switch 170 on the corresponding boost circuit or buck circuit to turn on / off through the electronic control module 200; thereby achieving power cut-off of the unused conventional units 220, thus conserving power; effectively extending the continuous power supply time of the backup power supply 100 to the satellite communication module 130.

[0104] In some embodiments, when the third detection unit 140 detects that the conventional unit 220 is enabled, it controls the corresponding secondary switch 170 to connect the corresponding boost circuit or buck circuit.

[0105] In some embodiments, in the vehicle communication terminal power supply architecture of this application, considering that ceramic capacitors are type II ferroelectric capacitors, and ferroelectrics have strong electrostriction characteristics that can produce whistling, the primary power input and output capacitors are all replaced with aluminum electrolytic capacitors.

[0106] Secondly, this application provides a vehicle, including a body, on which an electronic control system is installed. The electronic control system includes the aforementioned vehicle-mounted communication terminal power architecture. In the event of an accident or main power failure, the vehicle can directly supply power to the antenna module 600, satellite communication module 130, and conventional module 210 via the power architecture through a backup power supply 100. Furthermore, it can intelligently control the shutdown of unused modules, thereby ensuring the operating time of the critical satellite communication module 130. This significantly reduces the cost pressure and functional limitations associated with traditional power management chips. The modular design of this architecture gives the power system higher scalability and maintainability.

[0107] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A vehicular communication terminal power supply architecture, comprising: It includes: The main power supply, standby power supply (100), detection module, switching unit, antenna module (600), satellite communication module (130), electric control module (200), first circuit and second circuit; The main power supply is electrically connected with the antenna module (600), the satellite communication module (130); The detection module is connected with the main power supply, detects the output electric signal state of the main power supply and outputs to the electric control module (200); The switching unit is connected with the electric control module (200) and the standby power supply (100), and the switching unit is controlled by the electric control module (200) and controls the opening and closing of the standby power supply (100); The standby power supply (100) is electrically connected with the antenna module (600) through the first circuit; The standby power supply (100) is electrically connected with the satellite communication module (130) through the second circuit; The electric control module (200) is electrically connected with the standby power supply (100), and the electric control module (200) controls the on-off of the first circuit.

2. The vehicle-mounted communication terminal power supply architecture of claim 1, wherein, It also includes a third circuit; The standby power supply (100) is electrically connected with the general module (210) through the third circuit; The electric control module (200) controls the on-off of the third circuit.

3. The vehicle-mounted communication terminal power supply architecture of claim 1, wherein, The first circuit includes a first voltage reduction chip (500), the input end of the first voltage reduction chip (500) is connected with the standby power supply (100), and the output end is connected with the antenna module (600).

4. The vehicle-mounted communication terminal power supply architecture of claim 1, wherein, The second circuit includes a second voltage reduction chip (900) and a voltage reduction module; The input end of the second voltage reduction chip (900) is connected with the standby power supply (100), the output end is connected with the input end of the voltage reduction module, the voltage reduction module includes a plurality of voltage signal output ends for outputting voltage of different voltage grades, and the output ends of the voltage reduction module are connected with the input ends of the satellite communication module (130).

5. The vehicle-mounted communication terminal power supply architecture of claim 4, wherein, The voltage reduction module includes a third voltage reduction chip (110) and a fourth voltage reduction chip (120) connected with each other in parallel.

6. The vehicle-mounted communication terminal power supply architecture of claim 2, wherein, The third circuit includes a first voltage increase chip (160), the input end of the first voltage increase chip (160) is connected with the standby power supply (100), the output end of the first voltage increase chip (160) is connected with at least one voltage increase circuit and at least one voltage reduction circuit in parallel; the voltage increase circuit and the voltage reduction circuit are used to be connected with the corresponding general unit (220) in the general module (210).

7. The vehicle-mounted communication terminal power supply architecture of claim 6, wherein, The third circuit is provided with a third detection unit (140), the third detection unit (140) is connected with the general module (210) and the electric control module (200), and is used to detect whether the general module (210) is enabled and transmit a detection signal to the electric control module (200); The third circuit includes a third primary switch (150), and the electric control module (200) is connected with the third primary switch (150) to control the on-off of the third circuit.

8. The vehicle-mounted communication terminal power supply architecture of claim 7, wherein, At least one boost circuit and at least one step-down circuit are provided with a secondary switch (170), and the electric control module (200) is connected with the secondary switch (170) to control the on-off of the secondary switch (170).

9. The vehicle-mounted communication terminal power supply architecture of claim 1, wherein, The first circuit is provided with a first detection unit (300) and a first primary switch (400), and the first detection unit (300) and the first primary switch (400) are connected with the electric control module (200).

10. A vehicle characterized by comprising: Comprise: A vehicle body is provided with an electric control system, and the electric control system comprises the vehicle-mounted communication terminal power supply architecture according to any one of claims 1-9.

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