Communication system and device

Abstract

The embodiment of the utility model relates to the technical field of vehicle-mounted wireless communication, and discloses a communication system and equipment. The communication system is applied to a vehicle-mounted system and comprises a wireless communication module, a compensation module and an antenna module which are connected in sequence, the wireless communication module is located on a center console of the vehicle-mounted system, and the antenna module is arranged on the top of an automobile. Through the compensation module located between the wireless communication module and the antenna module, radio frequency signals sent by the wireless communication module to the antenna module and / or sent by the antenna module to the wireless communication module are supplemented. And the communication transmitting power and the receiving sensitivity of the vehicle-mounted system are at least facilitated.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of vehicle-mounted wireless communication, and in particular to a communication system and device. BACKGROUND

[0002] With the rapid development of wireless communication modules and automotive intelligence, wireless communication modules are increasingly applied in vehicles, and wireless communication modules have become a standard configuration of vehicles, which greatly improves the intelligence of vehicles.

[0003] However, even if a wireless communication module is provided, the communication effect of the vehicle-mounted system is still not satisfactory. CONTENT OF THE UTILITY MODEL

[0004] Embodiments of the present application provide a communication system and device, which are at least beneficial to the communication transmission power and receiving sensitivity of the vehicle-mounted system.

[0005] According to some embodiments of the present application, the first aspect of the embodiments of the present application provides a communication system applied to a vehicle-mounted system, the system comprising a wireless communication module, a compensation module and an antenna module connected in sequence; the wireless communication module is located in the center console of the vehicle-mounted system, and the antenna module is arranged on the top of the vehicle; through the compensation module between the wireless communication module and the antenna module, the radio frequency signals transmitted from the wireless communication module to the antenna module and / or the radio frequency signals transmitted from the antenna module to the wireless communication module are supplemented.

[0006] In some embodiments, the system further comprises a first modulation second modulation demodulation module and a second modulation demodulation module; wherein the wireless communication module and the compensation module are connected through the first modulation second modulation demodulation module, the first modulation second modulation demodulation module and the second modulation demodulation module are connected through a coaxial line, and the second modulation demodulation module is connected to the compensation module, so that the radio frequency signals and control signals transmitted between the wireless communication module and the compensation module are modulated into a signal at the sending end and demodulated into radio frequency signals and control signals at the receiving end.

[0007] In some embodiments, the number of coaxial lines connected between the first modulation second modulation demodulation module and the second modulation demodulation module is 1.

[0008] In some embodiments, the system further comprises a detection module; one end of the detection module is connected to the antenna module, and the other end is connected to the compensation module, so as to transmit the detected state of the antenna module to the wireless communication module through the compensation module.

[0009] In some embodiments, the detection module comprises a detection unit and an ADC unit, wherein the detection unit is connected to the antenna module, and the ADC unit is connected to the detection unit at one end and to the compensation unit at the other end, so as to convert the detection result of the detection unit into an ADC value and then transmit the ADC value to the wireless communication module through the compensation unit.

[0010] In some embodiments, the compensation module comprises a signal amplification unit connected to the antenna module for signal compensation.

[0011] In some embodiments, the compensation module further comprises a processing unit and a signal coupling unit, wherein the coupling unit is connected to the antenna, and the processing unit is connected to the coupling unit at one end and to the signal amplification unit at the other end, so as to determine a compensation parameter after transmitting the radio frequency signal radiated or received by the antenna coupled to the coupling unit to the processing unit, and adjust the signal amplification unit based on the compensation parameter.

[0012] In some embodiments, the signal coupling unit is further connected to the signal amplification unit, so as to determine the compensation parameter again after transmitting the radio frequency signal of the signal amplification unit coupled to the coupling unit to the processing unit, and adjust the signal amplification unit based on the compensation parameter.

[0013] In some embodiments, the compensation module further comprises a processing unit and a temperature acquisition unit, wherein the temperature acquisition unit is connected to the processing unit, and the processing unit is connected to the signal amplification unit, so as to determine a new compensation parameter based on temperature change and adjust the signal amplification unit based on the new compensation parameter.

[0014] According to some embodiments of the present application, the second aspect of the embodiments of the present application further provides a device, comprising: a device body; and a communication system as described in any one of the first aspect arranged on the device body; wherein the communication system is configured to communicate to provide reference information for the operation of the device body.

[0015] The technical solutions provided by the embodiments of the present application have at least the following advantages:

[0016] The compensation module is further arranged between the wireless communication module and the antenna module, and the compensation module is connected to the wireless communication module and the antenna module respectively, so that the compensation module can compensate the signal transmitted between the wireless communication module arranged on the center console of the vehicle system and the antenna module arranged on the top of the vehicle, thereby improving the transmission power and the receiving sensitivity. BRIEF DESCRIPTION OF DRAWINGS

[0017] One or more embodiments are illustrated by way of example in the figures that form a part of this disclosure and which do not limit the scope of embodiments, in which like references indicate similar elements. Figures in the drawings are in simplified form and are not to precise scale as is common when human illustration is involved. Unless otherwise noted, elements in the figures are not necessarily to scale.

[0018] Figure 1 is a structure schematic of a communication system provided in embodiments of the present application Figure 1 ;

[0019] Figure 2 is a structure schematic in a communication system provided in embodiments of the present application Figure 2 ;

[0020] Figure 3 is a structure schematic of a communication system provided in embodiments of the present application Figure 3 . DETAILED DESCRIPTION

[0021] As known from the background art, even if a wireless communication module is provided, the communication effect of the existing vehicle-mounted system is still not satisfactory.

[0022] It is found through analysis that the above problem is caused at least by the fact that when the wireless communication module is assembled in the device, a corresponding antenna also needs to be provided to support the transmission and reception of signals. However, the antenna of the wireless communication module equipped in the vehicle is connected to the wireless communication module through a coaxial line, and the distance between the wireless communication module and the antenna assembled on the vehicle in the market is relatively far. The conventional assembly mode is that the wireless communication module is assembled in the center console of the vehicle, and the antenna matched with the wireless communication module is assembled on the top of the vehicle. Since the distance between the wireless communication module and the antenna assembled on the vehicle is relatively far, the coaxial line connected between the wireless communication module and the antenna is relatively long, and the length of the coaxial line directly causes the signal attenuation to increase. The signal quality received at the end of the wireless communication module greatly decreases, which directly affects the performance of wireless communication. Meanwhile, the coaxial line cable is affected by temperature in various environments, and the attenuation is not the same at different temperatures, which greatly affects the stability of the wireless communication module.

[0023] Based on this, embodiments of the present application provide a communication system and a device. In addition to the antenna module and the wireless communication module, a compensation module is also provided to overcome the above signal loss problem through compensation, thereby improving the communication transmission power and receiving sensitivity of the vehicle-mounted system.

[0024] To make the purposes, technical solutions, and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in detail below with reference to the drawings. However, those skilled in the art can understand that, in the embodiments of the present application, many technical details are presented in order to make the present application better understood by the readers. However, the technical solutions claimed by the present application can be implemented even without these technical details and based on various changes and modifications of the following embodiments.

[0025] The division of the embodiments below is for the convenience of description, and should not constitute any limitation on the specific implementation modes of the present application. The embodiments can be combined and referenced with each other on the premise of no contradiction.

[0026] The embodiments of the present application provide a communication system, which is applied to a vehicle-mounted system. In some embodiments, as shown in Figure 1 The communication system comprises a wireless communication module, a compensation module, and an antenna module connected in sequence.

[0027] The wireless communication module is located in a center console of the vehicle-mounted system, and the antenna module is arranged on the top of the vehicle. Through the compensation module located between the wireless communication module and the antenna module, the radio frequency signals transmitted from the wireless communication module to the antenna module and / or the radio frequency signals transmitted from the antenna module to the wireless communication module are compensated.

[0028] In this way, the compensation module is further arranged between the wireless communication module and the antenna module, and the compensation module is connected with the wireless communication module and the antenna module respectively, so that the signals transmitted between the wireless communication module located in the center console of the vehicle-mounted system and the antenna module arranged on the top of the vehicle can be compensated based on the compensation module, thereby improving the transmitting power and the receiving sensitivity.

[0029] To make the purposes, technical solutions, and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in detail below with reference to the drawings. However, those skilled in the art can understand that, in the embodiments of the present application, many technical details are presented in order to make the present application better understood by the readers. However, the technical solutions claimed by the present application can be implemented even without these technical details and based on various changes and modifications of the following embodiments.

[0030] For the wireless communication module, the embodiments of the present application do not limit it, which can be any kind of communication module based on electromagnetic wave signals propagating in free space for information exchange. The working principle is to convert digital signals into radio signals for transmission, and restore the radio signals into digital signals at the receiving end to realize data transmission and communication connection. However, the wireless communication module provided by the embodiments of the present application does not include an antenna.

[0031] It should be noted that the embodiments of the present application do not limit the implementation of the wireless communication. For example, in some embodiments, the wireless communication module can support 3GPP Long Term Evolution (LTE), such as 4G, 5G, etc. Also, in some embodiments, the wireless communication module can also support Global Navigation Satellite System (GNSS). Also, in some embodiments, the wireless communication module can support Global System for Mobile Communications (GSM), Wideband Code Division Multiple Access (W-CDMA), Code Division Multiple Access (CDMA), LTE, Narrow Band Internet of Things (NB-IoT), Wi-Fi, Global Positioning System (GPS), Bluetooth, etc. Here, it will not be listed one by one.

[0032] It should also be noted that the embodiments of the present application do not limit the specific integration of the wireless communication module. For example, in some embodiments, the wireless communication module can integrate a baseband chip. Also, in some embodiments, the wireless communication module can also integrate a memory, such as a Flash, a Random Access Memory (RAM), etc. Also, in some embodiments, the wireless communication module can also integrate a Central Processing Unit (CPU), etc., which will not be listed one by one here.

[0033] For the antenna module, the embodiments of the present application do not limit the antenna, which can be any support external antenna module that has a guided wave propagating on a transmission line, transforms into an electromagnetic wave propagating in an unbounded medium (usually free space), or performs the opposite transformation, which will not be listed one by one here.

[0034] For the compensation module, the embodiments of the present application also do not limit it, which can be any module capable of compensating for signal loss caused by transmission, etc. between the wireless communication module located in the center console of the vehicle system and the antenna module arranged on the top of the car.

[0035] In some embodiments, the compensation module includes a signal amplification unit connected to the antenna module to perform signal compensation.

[0036] That is, the signal compensation is performed by means of signal amplification, direct or indirect, and is convenient to control, easy to implement, and has a simple structure and small area, which is conducive to deployment and cost reduction.

[0037] In some embodiments, considering that the adjustment stability of the signal amplification device is not high, the signal attenuation device can be used in combination to further improve the compensation accuracy and achieve better compensation effect.

[0038] In some embodiments, as shown in Figure 2 The compensation module includes a signal amplification unit, a processing unit, and a signal coupling unit.

[0039] The coupling unit is connected to the antenna, one end of the processing unit is connected to the coupling unit, and the other end of the processing unit is connected to the signal amplification unit, so as to transmit the radio frequency signal radiated or received by the antenna coupled to the coupling unit to the processing unit to determine the compensation parameter, and adjust the signal amplification unit based on the compensation parameter.

[0040] In this way, the signal coupling unit is additionally introduced outside the signal amplification unit, so that the signal radiated by the antenna module or the signal received by the antenna can be collected through the signal coupling unit, thereby facilitating the determination of the loss caused after transmission to achieve more accurate and reliable signal compensation.

[0041] In some embodiments, as shown in Figure 2 The signal coupling unit can also be connected to the signal amplification unit to transmit the radio frequency signal of the signal amplification unit coupled to the signal coupling unit to the processing unit to determine the compensation parameter again, and adjust the signal amplification unit based on the compensation parameter.

[0042] That is, on the basis of the foregoing embodiments, the signal coupling unit is additionally provided to collect the compensated structure, so as to evaluate (or detect, test, etc.) the compensation effect, thereby facilitating subsequent compensation and achieving more accurate and reliable compensation.

[0043] In some embodiments, as shown in Figure 3 The compensation module includes a signal amplification unit, a processing unit, and a temperature acquisition unit, the temperature acquisition unit is connected to the processing unit, and the processing unit is connected to the signal amplification unit, so as to determine a new compensation parameter based on temperature change and adjust the signal amplification unit based on the new compensation parameter.

[0044] That is, considering the influence of temperature on signal loss, the problem of signal loss can be considered from the perspective of temperature, for example, in the case where the signal loss change is small through temperature determination, the current compensation parameter can be continuously used without the need for re-detection and other processes to determine new compensation parameters; also, in the case where the signal loss will change through temperature determination, the compensation parameter can be re-determined based on the current state for more accurate compensation. That is, signal compensation can be achieved in a more accurate and reliable manner with lower cost.

[0045] It should be noted that the above embodiments are only examples, and in some embodiments, other units can also be used to implement the compensation module, for example, in some embodiments, the signal amplification unit can set the signal generation unit to generate a new signal mixed into the radio frequency signal to be compensated to achieve compensation, rather than amplifying the radio frequency signal to be compensated to achieve compensation.

[0046] It can be understood that for signal compensation, if the computing processing capability of the wireless communication module or the vehicle-mounted system in which it is located (mainly through the central control system to call the relevant resources of the vehicle-mounted system) is utilized, it will be beneficial to further improve the accuracy and precision of compensation. That is, in some embodiments, the wireless communication module also provides a control signal for controlling the compensation effect to achieve more accurate, effective and reliable signal compensation. At this time, in order to achieve better compensation effect through the compensation module, the wireless communication module will need to notify the compensation data or the aforementioned compensation parameter to the compensation module in a controlled manner.

[0047] Based on this, in some embodiments, as shown in Figure 3 The communication system further includes a first modulation and demodulation module and a second modulation and demodulation module.

[0048] Among them, the wireless communication module and the compensation module are connected through the first modulation and demodulation module, the first modulation and demodulation module and the second modulation and demodulation module are connected through the coaxial line, and the second modulation and demodulation module is connected to the compensation module, so that the radio frequency signal and the control signal transmitted between the wireless communication module and the compensation module are modulated into a signal at the sending end and demodulated into a radio frequency signal and a control signal at the receiving end.

[0049] In this way, on the basis of transmitting control signals to achieve accurate, effective and reliable signal compensation, modulation and demodulation functions are further provided, so that the radio frequency signal and the control signal can be combined into a signal for transmission, thereby facilitating signal compensation without the need to determine the correspondence between the radio frequency signal and the control signal, avoiding compensation errors and other problems caused by incorrect correspondence, and the control signal can be transmitted together with the radio frequency signal, thereby enabling real-time signal compensation, reducing latency, and improving communication efficiency.

[0050] In some embodiments, the number of coaxial lines connected between the first modulation and demodulation module and the second modulation and demodulation module is 1.

[0051] That is, on the basis of the foregoing embodiments, further reducing the resources needed, reducing costs, and being able to simplify the structure of the communication system, reduce the occupation of the vehicle space, and leave space for the deployment of other devices or equipment, etc.

[0052] In some embodiments, as shown in the accompanying drawings, the communication system further comprises a detection module; one end of the detection module is connected to the antenna module, and the other end is connected to the compensation module, so as to transmit the detected state of the antenna module to the wireless communication module through the compensation module. Figure 2

[0053] That is, accurate perception of the antenna state can be achieved, and an effective and reliable communication mode can be accurately selected, without using a communication mode that cannot smoothly radiate and transmit signals in the case of poor antenna state, and in the case of antenna problems, the antenna problems can be perceived and handled in time to avoid affecting the user's communication.

[0054] In some embodiments, the detection module comprises a detection unit and an ADC unit, wherein the detection unit is connected to the antenna module, and the ADC unit is connected to the detection unit at one end and connected to the compensation unit at the other end, so as to convert the detection result of the detection unit into an ADC value and then transmit it to the wireless communication module through the compensation unit.

[0055] That is, the detected antenna state is converted into a numerical value in the form of an ADC, so that it can be supported for modulation and demodulation processing, so that it can be applied in combination with the first modulation and demodulation module and the second modulation and demodulation module in the foregoing embodiments for better transmission of related signals. And based on the current embodiment, it is not difficult to see that the application embodiments can also support the conversion of corresponding signals into ADC values, which are not limited to the antenna state, but also include the aforementioned signals coupled to the antenna radiation or received, etc., which will not be listed one by one here. These signals converted into ADCs will be able to support modulation and demodulation, so that they can be better transmitted from the compensation module or other modules to the wireless communication module for analysis and processing, in order to determine more accurate compensation parameters, achieve more accurate signal compensation, and better solve the loss problem caused by signal transmission.

[0056] ​That is, in some embodiments, the control signal is not transmitted from the wireless communication module to the compensation module for one-way transmission, but includes the transmission mode of the compensation module or the control module transmitted to the wireless communication module through the compensation module. Specifically, when transmitting a signal, the wireless communication module simultaneously sends a state signal of the size of the transmitted signal to the first modulation and demodulation module through the control and state signal channel, the first modulation and demodulation module adjusts the state signal of the size of the transmitted signal of the wireless communication module into a high-frequency signal, and transmits it to the second modulation and demodulation module through the coaxial line, demodulates the state signal of the size of the transmitted signal, and sends it to the processing unit. At the same time, the signal coupling unit couples the signal quality strength of the antenna port to the processing unit, and the processing unit compares the size of the transmitted signal with the signal quality strength of the antenna port to calculate the signal line loss from the wireless communication module to the antenna port. The amplification factor of the signal amplification unit is determined, so that the size of the signal attenuation unit = the size of the transmitted signal + the amplification factor of the signal amplification unit - the signal line loss. The signal amplification unit can be selected to have a large gain, so as to cover a large signal line loss. Of course, the above-mentioned signal quality strength coupled to the antenna port can also be used as a feedback signal and sent to the wireless communication module in the form of a control signal for more detailed calculation and processing, etc. Here, it will not be repeated.

[0057] In order for those skilled in the art to better understand the working mode of the communication system provided by the above-mentioned embodiments, the following will be described in conjunction with the structure of the communication system shown in Figure 3 and Figure 2 .

[0058] As shown in Figure 3 and ​ , the antenna is connected with the compensation module, the signal coupling unit inside the compensation module couples the signal strength of the antenna module, the signal strength coupled to the antenna module reflects the signal quality of the antenna port, and the signal strength coupled to the antenna module is transmitted to the compensation module. In the control and state signal channel, it is transmitted to the second modulation and demodulation module, and the signal is modulated into a high-frequency signal by the second modulation and demodulation module and loaded onto the coaxial line. After passing through the first modulation and demodulation module, the signal strength coupled to the antenna module is demodulated and sent to the wireless communication module through the control and state signal channel.

[0059] After the wireless communication module receives the signal, the signal strength of the coupling antenna module and the transmitted signal are compared and analyzed, that is, the difference between the transmitted signal and the signal of the coupling antenna module is the loss data in the line. The wireless communication module transmits the loss data to the first modulation and demodulation module through the control and status signal channel. The first modulation and demodulation module modulates the loss data in the line to a high-frequency signal, which is transmitted to the second modulation and demodulation module through the coaxial line, and the loss data in the line is demodulated and transmitted to the compensation module through the control and status signal channel. The compensation module adjusts the parameters of the signal amplification unit inside the compensation module (that is, the compensation parameters mentioned above at this time), so that the loss of the radio frequency signal on the radio frequency signal channel is adjusted and compensated. In this way, the signal quality at the antenna port of the antenna module can be consistent with the signal quality of the wireless communication module. Thus, the function of stabilizing and compensating the radio frequency signal is achieved.

[0060] At the same time, the detection module can detect whether the antenna is in place, whether the antenna is damaged, and other abnormal antenna states. If it is detected that the antenna is not in place or the antenna is damaged, the compensation module transmits the antenna state to the second modulation and demodulation module through the control and status signal channel, modulates it into a high-frequency signal, transmits it to the first modulation and demodulation module through the coaxial line, demodulates the signal, and transmits it to the wireless communication module through the control and status signal channel.

[0061] In particular, the detection module detects whether the antenna is in place, whether the antenna is damaged, etc. through the ADC (analog-to-digital conversion) method. The ADC values of the antenna detection module are different when the antenna is in place and not in place, when the antenna is damaged and normal, and when the antenna is normal and short-circuited. The ADC values of the antenna detection module are different when the antenna is not in place, damaged, short-circuited, and normal. The ADC values of different states of the antenna can be encoded and labeled, and the response decoding is performed at the wireless communication module end to accurately detect the state of the antenna.

[0062] Moreover, the temperature acquisition unit inside the compensation module detects the change of the environment temperature at all times. When the temperature difference collected by the temperature acquisition unit in a short time is relatively large, the detection and stabilization compensation process can be actively initiated to adjust and compensate the radio frequency signal, thereby playing the role of stabilizing the signal.

[0063] For the detection of the temperature acquisition unit and the loop control, there are the following three working modes:

[0064] 1. The compensation module has built-in material attenuation values ​​for different materials on the coaxial cable at various temperatures. During use, based on the real-time temperature collected by the temperature acquisition unit, the compensation module adjusts the corresponding attenuation value built-in at the corresponding temperature and feeds it back to the processing unit, thereby saving calculation time. The processing unit can directly control the signal amplification unit based on the built-in value to realize the regulation of the line and the compensation of the entire loop signal.

[0065] 2. During use, at different temperatures, the calculation and processing unit inside the compensation module calculates the line loss attenuation value at the corresponding temperature and saves these values ​​in the compensation module. When used again, it first checks if there is a corresponding value in the storage. If not, the processing unit (or wireless communication module) needs to recalculate. If it has been used before and there is a saved record, it can be used directly, reducing the calculation steps and enabling timely response control of the loop.

[0066] 3. At different temperatures, each use and each test should calculate the line attenuation value and make compensation accordingly.

[0067] Meanwhile, in the above process, the frequency of signal compensation can be defined according to the actual usage scenario and the frequency of function use. For example, the compensation frequency can be configured in units of milliseconds, seconds, minutes, hours, days, months, or years. The time setting can be done in the wireless communication module and then synchronized to the compensation module.

[0068] Finally, through the above working mode, it is not difficult to see that the communication system provided by the embodiment of the application can improve the decline of transmission and reception performance caused by the inconsistency of the length of the coaxial line; can also improve the decline of transmission and reception performance caused by the difference in the loss parameters of the cable at different temperatures due to environmental temperature changes; and can solve the performance difference and performance stability caused by different wires, thereby eliminating the influence of the installation distance of the wireless communication module and the antenna on communication, solving the difference in coaxial line loss caused by the length of the coaxial line between the wireless communication module end and the antenna end, and feeding back the signal quality at the antenna end to the wireless communication module end. Through the detection and compensation module, the signal is compensated and stabilized due to the line loss difference caused by the different lengths of the coaxial line. Especially in winter, the temperature difference from the garage to the outdoor is relatively large, and the line loss of the coaxial line caused by the temperature difference has a great influence on the signal quality. Through the integrated temperature acquisition unit, the temperature change can be detected at any time. In this application scenario, the temperature acquisition unit detects the temperature difference in a short time, triggers the compensation module to compensate for the line loss caused by the temperature difference and stabilize the signal. In addition, even if the loss of the cable is different in different seasons of the year, the line loss detection and compensation can be performed regularly or irregularly according to different time settings. Finally, the system loss and signal fluctuation caused by various factors in the external pull type antenna are solved, the transmission power is improved, and the reception sensitivity is improved.

[0069] In addition, the examples mentioned in the above embodiments can be freely combined, and any combination can be understood as an embodiment. The "embodiment" or "example" appearing at various positions in the specification does not necessarily mean the same embodiment, nor is it an independent or alternative embodiment to other embodiments. Those skilled in the art can understand that the embodiments described herein can be combined with other embodiments.

[0070] That is, the step division of the above various structures is only for clear description, and can be combined into one module or split into multiple units when implemented, as long as the same logical relationship is included, which is within the protection scope of the patent; adding irrelevant modifications or introducing irrelevant designs in the system or module, but not changing the core design of the function, are within the protection scope of the patent.

[0071] The embodiment of the application further provides a device, comprising: a device body; and a communication system as described in any of the above embodiments arranged on the device body; wherein the communication system is used for communication to provide reference information for the operation of the device body.

[0072] It can be found that the embodiment is a system embodiment corresponding to the method embodiment, and the embodiment can be implemented in cooperation with the method embodiment. The related technical details mentioned in the method embodiment are still valid in the embodiment. In order to reduce repetition, they will not be described here. Accordingly, the related technical details mentioned in the embodiment can also be applied to the method embodiment.

[0073] It is worth mentioning that each module involved in the embodiment is a logical module. In actual application, a logical unit can be a physical unit, a part of a physical unit, or a combination of multiple physical units. In addition, in order to highlight the innovative part of the present application, units not closely related to solving the technical problems proposed in the present application are not introduced in the embodiment, but this does not mean that there are no other units in the embodiment.

[0074] Those skilled in the art can understand that the above embodiments are specific embodiments for implementing the present application, and in actual application, various changes can be made in form and detail without departing from the spirit and scope of the present application.

Claims

1. A communication system, characterized by The application is applied to a vehicle-mounted system, which comprises a wireless communication module, a compensation module and an antenna module connected in sequence. The wireless communication module is located in the center console of the vehicle-mounted system, and the antenna module is arranged on the top of the vehicle. Through the compensation module between the wireless communication module and the antenna module, the radio frequency signals transmitted from the wireless communication module to the antenna module and / or the radio frequency signals transmitted from the antenna module to the wireless communication module are compensated.

2. The communication system of claim 1, wherein, The system further comprises a first modulation and demodulation module and a second modulation and demodulation module. The wireless communication module and the compensation module are connected through the first modulation and demodulation module, the first modulation and demodulation module and the second modulation and demodulation module are connected through a coaxial line, and the second modulation and demodulation module is connected to the compensation module, so that the radio frequency signals and control signals transmitted between the wireless communication module and the compensation module are modulated into a signal at the sending end and demodulated into radio frequency signals and control signals at the receiving end.

3. The communication system of claim 2, wherein, The number of coaxial lines connected between the first modulation and demodulation module and the second modulation and demodulation module is 1.

4. The communication system of claim 1, wherein, The system further comprises a detection module. One end of the detection module is connected to the antenna module, and the other end is connected to the compensation module, so as to transmit the detected state of the antenna module to the wireless communication module through the compensation module.

5. The communication system of claim 4, wherein, The detection module comprises a detection unit and an ADC unit, The detection unit is connected to the antenna module, and the ADC unit is connected to the detection unit at one end and connected to the compensation unit at the other end, so as to convert the detection result of the detection unit into an ADC value and then transmit it to the wireless communication module through the compensation unit.

6. The communication system according to any one of claims 1 to 5, characterized by, The compensation module comprises a signal amplification unit connected to the antenna module for signal compensation.

7. The communication system of claim 6, wherein, The compensation module further comprises a processing unit and a signal coupling unit. The coupling unit is connected to the antenna, and the processing unit is connected to the coupling unit at one end and connected to the signal amplification unit at the other end, so as to determine the compensation parameter after the radio frequency signals radiated or received by the antenna coupled to the coupling unit are transmitted to the processing unit, and adjust the signal amplification unit based on the compensation parameter.

8. The communication system of claim 7, wherein, The signal coupling unit is also connected to the signal amplification unit, so as to determine the compensation parameter again after the radio frequency signals of the signal amplification unit coupled to the signal coupling unit are transmitted to the processing unit, and adjust the signal amplification unit based on the compensation parameter.

9. The communication system of claim 6, wherein, The compensation module further comprises a processing unit and a temperature acquisition unit, the temperature acquisition unit is connected to the processing unit, and the processing unit is connected to the signal amplification unit, so as to determine a new compensation parameter based on temperature change and adjust the signal amplification unit based on the new compensation parameter.

10. An apparatus, comprising: It comprises: A device body; And the communication system as claimed in any one of claims 1 to 9 arranged on the device body; The communication system is used for communication to provide reference information for the operation of the device body.

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