Remote information processor, vehicle networking system and vehicle
By setting external and internal GPS antennas in the remote information processor and using control module switching and circuit optimization, the problem of positioning loss caused by damage to the external antenna was solved, and stable input of GPS signal and improved positioning accuracy were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BYD CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-05-01
AI Technical Summary
Existing telematics processors lose their positioning function when the external GPS antenna is damaged, resulting in the inability to obtain time and location information, increasing after-sales risks and potential serious consequences.
The remote information processor is designed to include external and internal GPS antennas. The switching of the switch module is controlled by the control module to ensure stable GPS signal input. The signal of the internal antenna is optimized by filtering, low-noise amplification and attenuation circuits. The reception performance is improved by combining a flexible circuit board and a linearly polarized antenna.
This ensures stable GPS signal input, avoids loss of positioning capability due to damage to the external antenna, and enhances the reliability and positioning accuracy of the remote information processor.
Smart Images

Figure CN224191938U_ABST
Abstract
Description
Remote information processors, vehicle networking systems and vehicles Technical Field
[0001] This application relates to the field of vehicle networking technology, and in particular to a remote information processor, a vehicle networking system, and a vehicle. Background Technology
[0002] With the rapid development of new energy vehicles, intelligent vehicles are playing an increasingly important role in people's lives. Telematics boxes (T-BOXs), as crucial components of intelligent vehicles, are vital for overall vehicle intelligence. Most T-BOXs have positioning capabilities, and considering development cycles and costs, a modular solution is generally chosen, using an external GPS active antenna to achieve terminal positioning. However, in actual use, when the external GPS antenna fails, the T-BOX loses its positioning function. Summary of the Invention
[0003] This application provides a remote information processor, a vehicle networking system, and a vehicle to solve at least one of the aforementioned technical problems.
[0004] The remote information processor of this application includes an external GPS antenna, a built-in GPS antenna, a control module, a first switch module, and a GPS module. The external GPS antenna, the built-in GPS antenna, the control module, and the GPS module are all connected to the first switch module.
[0005] The external GPS antenna and the internal GPS antenna are used to receive GPS signals;
[0006] The control module is used to control the switching state of the first switch module according to the working state of the external GPS antenna, so that the GPS signal received by one of the external GPS antenna and the internal GPS antenna is transmitted to the GPS module.
[0007] In some embodiments, the remote information processor further includes an antenna detection circuit, which is connected to the external GPS antenna and the control module, respectively.
[0008] The antenna detection circuit is used to detect the working status of the external GPS antenna;
[0009] The control module is used to control the switching state of the first switch module based on the detection result of the antenna detection circuit.
[0010] In some embodiments, the remote information processor further includes a filtering module connected between the built-in GPS antenna and the first switch module;
[0011] The filtering module is used to filter the GPS signal received by the built-in GPS antenna.
[0012] In some embodiments, the remote information processor further includes a low-noise amplification module connected between the built-in GPS antenna and the first switch module;
[0013] The low-noise amplification module is used to amplify the GPS signal received by the built-in GPS antenna.
[0014] In some embodiments, the remote information processor further includes an attenuation circuit connected between the built-in GPS antenna and the first switch module;
[0015] The attenuation circuit is used to adjust the signal gain of the GPS signal received by the built-in GPS antenna.
[0016] In some embodiments, the built-in GPS antenna is a flexible circuit board; and / or
[0017] The polarization type of the built-in GPS antenna is linear polarization; and / or
[0018] The return loss of the built-in GPS antenna is less than -20dB; and / or
[0019] The built-in GPS antenna has an antenna efficiency of more than 50%.
[0020] In some embodiments, the remote information processor further includes an external communication antenna main set, a built-in communication antenna main set, a second switch module, and a communication module. The external communication antenna main set is connected to the communication module, and the built-in communication antenna main set, the control module, and the communication module are all connected to the second switch module.
[0021] The external communication antenna set and the internal communication antenna set are used to transmit and receive communication signals;
[0022] The control module is used to control the switching state of the second switch module according to the working state of the external communication antenna master set, so that one of the external communication antenna master set and the internal communication antenna master set can transmit communication signals with the communication module.
[0023] In some embodiments, the remote information processor further includes a communication detection circuit, which is connected to the external communication antenna main unit and the control module respectively;
[0024] The communication detection circuit is used to detect the working status of the external communication antenna main set;
[0025] The control module is used to control the switching state of the second switch module based on the detection result of the communication detection circuit.
[0026] The vehicle networking system of this application includes a telematics processor according to any of the above embodiments.
[0027] The vehicle described in this application includes the vehicle networking system of any of the above embodiments.
[0028] In the telematics processor, vehicle networking system, and vehicle described in this application, an external GPS antenna and a built-in GPS antenna are provided. The control module controls the switching state of the first switch module according to the working state of the external GPS antenna, so that the GPS signal received by either the external or built-in GPS antenna is transmitted to the GPS module. This ensures a stable input of the GPS signal, prevents the telematics processor from losing its positioning capability due to damage to the external GPS antenna, and enhances the reliability of the telematics processor.
[0029] 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
[0030] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort. Among them:
[0031] Figure 1 is a schematic diagram of the structure of a remote information processor according to some embodiments of this application;
[0032] Figure 2 is a schematic diagram of the structure of a remote information processor according to some embodiments of this application;
[0033] Figure 3 is a flowchart illustrating the switching of GPS antenna radio frequency path in some embodiments of this application;
[0034] Figure 4 is a schematic diagram of the structure of a remote information processor according to some embodiments of this application;
[0035] Figure 5 is a schematic diagram of the vehicle networking system according to some embodiments of this application;
[0036] Figure 6 is a structural schematic diagram of a vehicle according to some embodiments of this application.
[0037] Explanation of reference numerals in the attached figures:
[0038] Remote information processor 100, external GPS antenna 10, internal GPS antenna 20, filter module 21, low noise amplification module 22, attenuation circuit 23, control module 30, first switch module 41, second switch module 42, GPS module 50, external communication antenna main unit 61, internal communication antenna main unit 62, external communication antenna diversity 63, communication module 70, power network 80, CAN network 90, vehicle networking system 200, vehicle 1000. Detailed Implementation
[0039] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.
[0040] Referring to Figures 1 and 2, this application provides a remote information processor 100. The remote information processor 100 includes an external GPS antenna 10, a built-in GPS antenna 20, a control module 30, a first switch module 41, and a GPS module 50. The external GPS antenna 10, the built-in GPS antenna 20, the control module 30, and the GPS module 50 are all connected to the first switch module 41. The external GPS antenna 10 and the built-in GPS antenna 20 are used to receive GPS signals. The control module 30 controls the switching state of the first switch module 41 according to the operating state of the external GPS antenna 10, so that the GPS signal received by one of the external GPS antenna 10 and the built-in GPS antenna 20 is transmitted to the GPS module 50.
[0041] In the remote information processor 100 of this embodiment, an external GPS antenna 10 and a built-in GPS antenna 20 are provided. The control module 30 controls the switching state of the first switch module 41 according to the working state of the external GPS antenna 10, so that the GPS signal received by either the external GPS antenna 10 or the built-in GPS antenna 20 is transmitted to the GPS module 50. In this way, a stable input of GPS signal is ensured, and the loss of positioning capability of the remote information processor 100 due to damage to the external GPS antenna 10 is avoided, thereby enhancing the reliability of the remote information processor 100.
[0042] Specifically, the external GPS antenna 10 serves as the external GPS antenna RF path of the remote information processor 100; the internal GPS antenna 20 is integrated on the motherboard of the remote information processor 100, serving as the internal GPS antenna RF path of the remote information processor 100. Both GPS antenna RF paths are connected to the GPS module 50 via the first switch module 41. Both the external GPS antenna 10 and the internal GPS antenna 20 can receive GPS signals.
[0043] The first switch module 41 can be a single-pole double-throw (SPDT) switch. The first switch module 41 may include a first terminal, a second terminal, and a third terminal. The first terminal is connected to the external GPS antenna 10, the second terminal is connected to the internal GPS antenna 20, and the third terminal is connected to the GPS module 50.
[0044] The first switch module 41 has two working states. When the first switch module 41 is in the first switch state, the first terminal and the third terminal are connected. At this time, the antenna signal received by the external GPS antenna 10 can be transmitted to the GPS module 50.
[0045] When the first switch module 41 is in the second switch state, the second terminal and the third terminal are connected. At this time, the antenna signal received by the built-in GPS antenna 20 can be transmitted to the GPS module 50. The GPS module 50 can demodulate and calculate the received GPS signal and output GPS positioning information.
[0046] The control module 30 can be a microcontroller (MCU). The control module 30 can control the switching state of the first switch module 41 according to the working state of the external GPS antenna 10, so that the GPS signal received by one of the external GPS antenna 10 and the internal GPS antenna 20 can be transmitted to the GPS module 50.
[0047] For example, as shown in Figure 3, when the external GPS antenna 10 is working normally, that is, when it is not damaged, the control module 30 can control the first switch module 41 to be in the first switch state, so that the radio frequency path of the external GPS antenna is turned on, and the GPS signal received by the external GPS antenna 10 can be transmitted to the GPS module 50.
[0048] When the external GPS antenna 10 is in an abnormal working state, that is, when it is damaged, the control module 30 can control the first switch module 41 to be in the second switch state, so that the radio frequency path of the built-in GPS antenna is turned on, and the GPS signal received by the built-in GPS antenna 20 can be transmitted to the GPS module 50.
[0049] In addition, when the external GPS antenna 10 is damaged, the control module 30 can also issue an alarm to prompt the user to replace the external GPS antenna 10.
[0050] In related technologies, only an external antenna is used. When the external antenna is damaged, the remote information processor loses its positioning function, resulting in the inability to obtain time and location information, increasing after-sales risks. In extreme cases of practical application, the inability to determine location can lead to delays in rescue efforts and serious consequences.
[0051] In this embodiment, when the external GPS antenna 10 malfunctions, the control module 30 can control the switching state of the first switch module 41 to connect the built-in GPS antenna 20 to the GPS module 50, switching the radio frequency path to the GPS antenna radio frequency path. This allows the GPS signal received by the built-in GPS antenna 20 to be transmitted to the GPS module 50. This ensures stable GPS signal input, prevents the remote information processor 100 from losing its positioning capability due to damage to the external GPS antenna 10, and enhances the reliability of the remote information processor 100.
[0052] Referring to Figures 1 to 3, in some embodiments, the remote information processor 100 further includes an antenna detection circuit (not shown). The antenna detection circuit is connected to the external GPS antenna 10 and the control module 30, respectively. The antenna detection circuit is used to detect the operating status of the external GPS antenna 10. The control module 30 is used to control the switching status of the first switch module 41 based on the detection results of the antenna detection circuit.
[0053] Specifically, the antenna detection circuit can be set on the main board of the remote information processor 100 and connected to the external GPS antenna 10 to detect the working status of the external GPS antenna 10. The antenna detection circuit is also connected to the control module 30 and can send the detection results to the control module 30, so that the control module 30 can obtain the working status of the external GPS antenna 10 and control the switching status of the first switch module 41 according to the working status of the external GPS antenna 10.
[0054] The specific circuit structure of the antenna detection circuit can be set according to the actual situation. In one example, the antenna detection circuit can detect the working status of the external GPS antenna 10 by detecting the current. The judgment condition is the relationship between the voltage difference of the power supply voltage of the external GPS antenna 10 and the current ratio, where the current ratio refers to the ratio of the maximum current to the minimum current.
[0055] For example, if the maximum supply voltage of the external GPS antenna 10 is 3.3V, and the supply voltage after passing through the load is 2.9V, the voltage difference is 0.4V. When the voltage difference is greater than 0.3 times the current ratio, it indicates that the external GPS antenna 10 is working normally; when the voltage difference is less than or equal to 0.3 times the current ratio, it indicates that the external GPS antenna 10 is working abnormally.
[0056] Referring to Figure 2, in some embodiments, the remote information processor 100 further includes a filtering module 21, which is connected between the built-in GPS antenna 20 and the first switch module 41. The filtering module 21 is used to filter the GPS signal received by the built-in GPS antenna 20.
[0057] Specifically, the filtering module 21 is connected between the built-in GPS antenna 20 and the first switch module 41. The GPS signal received by the built-in GPS antenna 20 enters the filtering module 21, which can filter the GPS signal and remove interference signals from the GPS signal.
[0058] The filtering module 21 can be a bandpass filter. For example, if the center frequency of the GPS signal is 1575.42MHz and the bandwidth is 2.046MHz, the filtering module 21 can select a filter with a passband range of 1575.42±1.023MHz. The filtering module 21 needs to have high out-of-band rejection capability, that is, signals outside the passband range need to be effectively attenuated. For example, a filter with an out-of-band rejection degree greater than a preset rejection degree can be used as the filtering module 21, and the preset rejection degree can be 40dB.
[0059] Referring to Figure 2, in some embodiments, the remote information processor 100 further includes a low-noise amplification module 22. The low-noise amplification module 22 is connected between the built-in GPS antenna 20 and the first switch module 41. The low-noise amplification module 22 is used to amplify the GPS signal received by the built-in GPS antenna 20.
[0060] Specifically, the low-noise amplification module 22 is connected between the built-in GPS antenna 20 and the first switch module 41. The GPS signal received by the built-in GPS antenna 20 enters the low-noise amplification module 22, which can amplify the GPS signal for subsequent processing.
[0061] Specifically, the low-noise amplifier module 22 can be connected between the filter module 21 and the first switch module 41. The GPS signal is filtered by the filter module 21 and then input to the low-noise amplifier module 22 for amplification. This prevents the low-noise amplifier module 22 from becoming blocked.
[0062] In some implementations, the selection criteria for the filter module 21 and the low-noise amplification module 22 can be determined based on the GPS sensitivity calculation formula. The GPS sensitivity calculation formula is as follows:
[0063] Sensitivity=-174dbm / Hz+NF+C / N0
[0064] Where C / N0 is the carrier-to-noise power density ratio. NF is the noise figure, calculated using the following formula:
[0065]
[0066] Where IL represents insertion loss and G represents the gain of low-noise amplifier module 22.
[0067] Since the filtering module 21 is located at the front end of the low-noise amplification module 22, according to the GPS sensitivity calculation formula, a filter with low insertion loss is required to reduce the noise figure of the built-in GPS antenna RF path. For example, a filter with an insertion loss less than a preset insertion loss can be used as the filtering module 21, which can be 0.5dB or 0.8dB. This can reduce the impact on GPS reception performance.
[0068] The low-noise amplifier module 22 can employ a low-noise amplifier with a low noise figure and high gain, thereby reducing the impact of insertion loss at the back end of the low-noise amplifier module 22 on GPS reception performance. For example, a low-noise amplifier with a noise figure lower than a preset noise figure can be used as the low-noise amplifier module 22, where the preset noise figure can be 1. The gain of the low-noise amplifier module 22 needs to consider the reception gain requirements of the back-end module (e.g., GPS module 50). For example, if the reception gain range of the back-end module is 7dB-17dB, then a low-noise amplifier with a gain of 17dB can be selected as the low-noise amplifier module 22.
[0069] Referring to Figure 2, in some embodiments, the remote information processor 100 further includes an attenuation circuit 23. The attenuation circuit 23 is connected between the built-in GPS antenna 20 and the first switching module 41. The attenuation circuit 23 is used to adjust the signal gain of the GPS signal received by the built-in GPS antenna 20.
[0070] Specifically, the attenuation circuit 23 is connected between the built-in GPS antenna 20 and the first switch module 41. The GPS signal received by the built-in GPS antenna 20 enters the attenuation circuit 23, which can adjust the gain of the GPS signal. When the first switch module 41 is in the second switch state, the gain-adjusted GPS signal can be input to the GPS module 50 through the first switch module 41.
[0071] The attenuation circuit 23 can be specifically connected between the low-noise amplifier module 22 and the first switch module 41. After the GPS signal is amplified by the low-noise amplifier module 22, it is input to the attenuation circuit 23 for gain adjustment. The low-noise amplifier module 22 and the attenuation circuit 23 together determine the gain of the GPS signal entering the GPS module 50, thereby affecting the value of the programmable gain amplifier (PGA) of the GPS module 50.
[0072] Therefore, the GPS module 50 has requirements for the receiving gain range of the GPS signal. In practical applications, this can be achieved through simulation and debugging using the attenuation circuit 23, ensuring that the GPS signal passing through the low-noise amplification module 22 and the attenuation circuit 23 meets the receiving gain range of the GPS module 50. This allows the PGA value of the GPS module 50 to remain within a preset range.
[0073] In some embodiments, the built-in GPS antenna 20, filter module 21, low-noise amplifier module 22, and attenuation circuit 23 are connected in sequence to form the built-in GPS antenna radio frequency path, and are integrated into the motherboard of the remote information processor 100. This reduces the internal wiring of the remote information processor 100, lowers insertion loss, and thus reduces the impact of insertion loss on GPS reception performance.
[0074] Referring to Figure 2, in some embodiments, the built-in GPS antenna 20 uses a flexible circuit board; and / or the polarization type of the built-in GPS antenna 20 is linear polarization; and / or the return loss of the built-in GPS antenna 20 is less than -20dB; and / or the antenna efficiency of the built-in GPS antenna 20 is greater than 50%.
[0075] Specifically, the built-in GPS antenna 20 can be made of a flexible printed circuit (FPC). Flexible printed circuit boards have excellent characteristics such as low cost, light weight, thinness, and the ability to be freely bent and folded, making them easy to integrate into the motherboard of the remote information processor 100, making the structure of the remote information processor 100 more compact, and also reducing the risk of damage to the built-in GPS antenna 20.
[0076] The built-in GPS antenna 20 is linearly polarized. Although GPS signals are right-hand circularly polarized, the linearly polarized antenna can maintain and ensure positioning accuracy. Compared to other polarization types, the linearly polarized antenna has a simpler structure and lower cost, which helps reduce the cost of the remote information processor 100.
[0077] The built-in GPS antenna 20 has a return loss of less than -20dB, which can minimize signal energy waste and reduce interference. The built-in GPS antenna 20 has an antenna efficiency of more than 50%, which helps to capture more GPS signals in complex environments and improve positioning accuracy. All of these factors contribute to improving the GPS receiving performance of the remote information processor 100.
[0078] In practical applications, simulation software can be used to simulate the required length and shape of the built-in GPS antenna 20. An antenna bracket is mounted on the motherboard of the remote information processor 100, and the built-in GPS antenna 20 can be attached to the antenna bracket and fixed to the motherboard with screws. The feed point of the built-in GPS antenna 20 attached to the antenna bracket is connected to the motherboard via gold fingers and antenna springs, allowing GPS signals to be introduced into the motherboard's radio frequency path through the antenna feed point.
[0079] It should be noted that the remote information processor 100 not only has GPS positioning capabilities but also data connectivity capabilities to communicate with the cloud or a backend server. The data connectivity capabilities of the remote information processor 100 are described in detail below.
[0080] Referring to Figures 1 and 4, in some embodiments, the remote information processor 100 further includes an external communication antenna main unit 61, an internal communication antenna main unit 62, a second switch module 42, and a communication module 70. The external communication antenna main unit 61 is connected to the communication module 70, and the internal communication antenna main unit 62, the control module 30, and the communication module 70 are all connected to the second switch module 42. The external communication antenna main unit 61 and the internal communication antenna main unit 62 are used to transmit and receive communication signals. The control module 30 is used to control the switching state of the second switch module 42 according to the operating state of the external communication antenna main unit 61, so that one of the external communication antenna main unit 61 and the internal communication antenna main unit 62 can transmit communication signals with the communication module 70.
[0081] Specifically, the remote information processor 100 also includes an external communication antenna diversity 63. The external communication antenna master 61, external communication antenna diversity 63, and internal communication antenna master 62 can all employ Long Term Evolution (LTE) antennas. The external communication antenna master 61 and internal communication antenna master 62 are respectively connected to the second switch module 42, which is connected to both the control module 30 and the communication module 70. The external communication antenna diversity 63 is connected to the communication module 70. The external communication antenna master 61 and internal communication antenna master 62 are used to transmit and receive communication signals, while the external communication antenna diversity 63 is used to receive communication signals.
[0082] The second switch module 42 can be a single-pole double-throw switch. The second switch module 42 may include a fourth terminal, a fifth terminal, and a sixth terminal. The fourth terminal is connected to the external communication antenna main unit 61, the fifth terminal is connected to the internal communication antenna main unit 62, and the sixth terminal is connected to the communication module 70.
[0083] The second switch module 42 has two operating states. When the second switch module 42 is in the first switch state, the fourth terminal and the sixth terminal are connected. At this time, communication signal transmission can be performed between the external communication antenna main unit 61 and the communication module 70.
[0084] When the second switch module 42 is in the second switch state, the fifth terminal and the sixth terminal are connected. At this time, communication signal transmission can be performed between the built-in communication antenna main unit 62 and the communication module 70.
[0085] The control module 30 can control the switching state of the second switch module 42 according to the working state of the external communication antenna main unit 61, so that one of the external communication antenna main unit 61 and the internal communication antenna main unit 62 can transmit communication signals with the communication module 70.
[0086] For example, when the external communication antenna main unit 61 is working normally, that is, when it is not damaged, the control module 30 can control the second switch module 42 to be in the first switch state, so that the external communication antenna main unit 61 and the communication module 70 can transmit communication signals.
[0087] When the external communication antenna main unit 61 is in an abnormal working state, that is, when it is damaged, the control module 30 can control the second switch module 42 to be in the second switch state, so that the internal communication antenna main unit 62 and the communication module 70 can transmit communication signals.
[0088] In addition, when the external communication antenna main unit 61 is damaged, the control module 30 can also issue an alarm to prompt the user to replace the external communication antenna main unit 61.
[0089] The communication module 70 can be a 4G communication module, in which case the communication signal can be a 2G signal, a 3G signal, or a 4G signal.
[0090] In related technologies, the communication module uses a Category (Cat) 1 module, which has a relatively low data communication rate. In the embodiment of this application, the communication module 70 can use an LTE Cat4 module, which has a higher downlink rate and better signal quality.
[0091] In this embodiment, when the external communication antenna main unit 61 malfunctions, the control module 30 can control the switching state of the second switch module 42 to connect the internal communication antenna main unit 62 to the communication module 70, enabling communication signal transmission between the internal communication antenna main unit 62 and the communication module 70. This ensures stable communication signal transmission, prevents the remote information processor 100 from losing its data connectivity due to damage to the external communication antenna main unit 61, and enhances the reliability of the remote information processor 100.
[0092] Referring to Figure 4, in some embodiments, the remote information processor 100 further includes a communication detection circuit (not shown). The communication detection circuit is connected to the external communication antenna main unit 61 and the control module 30, respectively. The communication detection circuit is used to detect the operating status of the external communication antenna main unit 61. The control module 30 is used to control the switching status of the second switch module 42 based on the detection result of the communication detection circuit.
[0093] Specifically, the communication detection circuit can be installed on the main board of the remote information processor 100 and connected to the external communication antenna main unit 61 to detect the working status of the external communication antenna main unit 61. The communication detection circuit is also connected to the control module 30 and can send the detection results to the control module 30, so that the control module 30 can obtain the working status of the external communication antenna main unit 61 and control the switching status of the second switch module 42 according to the working status of the external communication antenna main unit 61.
[0094] The specific circuit structure of the communication detection circuit can be configured according to actual conditions. In one example, the communication detection circuit may include a first resistor, and the external communication antenna main unit 61 is connected to a second resistor, which is connected to the first resistor. When the external communication antenna main unit 61 is in different operating states, the voltage of the second resistor will change, thereby affecting the voltage of the first resistor. Therefore, the operating state of the external communication antenna main unit 61 can be detected by obtaining the voltage of the first resistor. The resistance values of the first and second resistors can be determined according to actual conditions; for example, the resistance value of the first resistor can be 5KΩ, and the resistance value of the second resistor can be 10KΩ.
[0095] Referring to Figure 1, in some embodiments, the remote information processor 100 also includes a power network 80 for supplying power to the various components of the remote information processor 100.
[0096] Referring to Figures 1, 5, and 6, in some embodiments, the telematics processor 100 further includes a Controller Area Network (CAN) network 90. The telematics processor 100 can be applied to the vehicle networking system 200 of the vehicle 1000, and the CAN network 90 is used for information transmission between the telematics processor 100 and the vehicle 1000.
[0097] Referring to Figures 5 and 6, this application also provides a vehicle networking system 200. The vehicle networking system 200 includes the telematics processor 100 of any of the above embodiments.
[0098] Specifically, the vehicle-to-everything (V2X) system 200 can be applied to vehicle 1000. The V2X system 200 is an intelligent network system that connects vehicle 1000 with its surrounding environment (such as other vehicles 1000, infrastructure, cloud, pedestrians, etc.) through wireless communication technology. The telematics processor 100 in the V2X system 200 is used for real-time data interaction between vehicle 1000 and external networks (such as cloud, mobile devices, infrastructure, etc.).
[0099] Referring to Figure 6, this application also provides a vehicle 1000. The vehicle 1000 includes the vehicle networking system 200 of any of the above embodiments.
[0100] Specifically, the vehicle networking system 200, in addition to the telematics processor 100, includes several other components. These components can be located at different locations within the vehicle 1000. For example, at least a portion of the vehicle networking system 200 can be located on the dashboard of the vehicle 1000 (as shown in Figure 6). Another example is that at least a portion of the vehicle networking system 200 can be located under the seats of the vehicle 1000. By connecting the vehicle 1000 with its surrounding environment, the vehicle networking system 200 can improve user driving safety, optimize traffic efficiency, and enhance the user's driving experience.
[0101] In summary, the remote information processor 100, vehicle networking system 200, and vehicle 1000 of this application embodiment are equipped with an external GPS antenna 10 and a built-in GPS antenna 20. The control module 30 controls the switching state of the first switch module 41 according to the working state of the external GPS antenna 10, so that the GPS signal received by either the external GPS antenna 10 or the built-in GPS antenna 20 is transmitted to the GPS module 50. This ensures a stable input of the GPS signal, prevents the remote information processor 100 from losing its positioning capability due to damage to the external GPS antenna 10, and enhances the reliability of the remote information processor 100.
[0102] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0103] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0104] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being 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 includes the first feature being 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.
[0105] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.
[0106] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," and "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with an embodiment or example that 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. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0107] Although embodiments of this application have been shown and described above, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.
Claims
1. A remote information processor (100), characterized in that, The system includes an external GPS antenna (10), a built-in GPS antenna (20), a control module (30), a first switch module (41), and a GPS module (50). The external GPS antenna (10), the built-in GPS antenna (20), the control module (30), and the GPS module (50) are all connected to the first switch module (41). The external GPS antenna (10) and the built-in GPS antenna (20) are used to receive GPS signals. The control module (30) is used to control the switching state of the first switch module (41) according to the working state of the external GPS antenna (10), so that the GPS signal received by one of the external GPS antenna (10) and the built-in GPS antenna (20) is transmitted to the GPS module (50).
2. The remote information processor (100) according to claim 1, characterized in that, The remote information processor (100) further includes an antenna detection circuit, which is connected to the external GPS antenna (10) and the control module (30) respectively. The antenna detection circuit is used to detect the working status of the external GPS antenna (10). The control module (30) is used to control the switching status of the first switch module (41) according to the detection result of the antenna detection circuit.
3. The remote information processor (100) according to claim 1, characterized in that, The remote information processor (100) further includes a filtering module (21), which is connected between the built-in GPS antenna (20) and the first switch module (41); the filtering module (21) is used to filter the GPS signal received by the built-in GPS antenna (20).
4. The remote information processor (100) according to claim 1, characterized in that, The remote information processor (100) further includes a low-noise amplification module (22), which is connected between the built-in GPS antenna (20) and the first switch module (41); the low-noise amplification module (22) is used to amplify the GPS signal received by the built-in GPS antenna (20).
5. The remote information processor (100) according to claim 1, characterized in that, The remote information processor (100) further includes an attenuation circuit (23), which is connected between the built-in GPS antenna (20) and the first switch module (41); the attenuation circuit (23) is used to adjust the signal gain of the GPS signal received by the built-in GPS antenna (20).
6. The remote information processor (100) according to any one of claims 1-5, characterized in that, The built-in GPS antenna (20) uses a flexible circuit board; and / or the polarization type of the built-in GPS antenna (20) is linear polarization; and / or the return loss of the built-in GPS antenna (20) is less than -20dB; and / or the antenna efficiency of the built-in GPS antenna (20) is greater than 50%.
7. The remote information processor (100) according to claim 1, characterized in that, The remote information processor (100) further includes an external communication antenna main set (61), an internal communication antenna main set (62), a second switch module (42), and a communication module (70). The external communication antenna main set (61) is connected to the communication module (70). The internal communication antenna main set (62), the control module (30), and the communication module (70) are all connected to the second switch module (42). The external communication antenna main set (61) and the internal communication antenna main set (62) are used to send and receive communication signals. The control module (30) is used to control the switching state of the second switch module (42) according to the working state of the external communication antenna main set (61), so that one of the external communication antenna main set (61) and the internal communication antenna main set (62) can transmit communication signals with the communication module (70).
8. The remote information processor (100) according to claim 7, characterized in that, The remote information processor (100) further includes a communication detection circuit, which is connected to the external communication antenna main unit (61) and the control module (30) respectively. The communication detection circuit is used to detect the working status of the external communication antenna main unit (61). The control module (30) is used to control the switching status of the second switch module (42) according to the detection result of the communication detection circuit.
9. A vehicle networking system (200), characterized in that, Includes the remote information processor (100) as described in any one of claims 1-8.
10. A vehicle (1000), characterized in that, Includes the vehicle networking system (200) as described in claim 9.