Vehicle-mounted active antenna and system

Abstract

The utility model relates to a vehicle-mounted active antenna and system, and relates to the technical field of antennae, the vehicle-mounted active antenna comprises an antenna body, a signal processor, a gain module and a control module, a first signal end of the signal processor is used for being connected with an output end of an electronic control unit of a vehicle; a first signal end of the gain module is connected with a second signal end of the signal processor, and a second signal end of the gain module is connected with the antenna body; the input end of the control module is connected with the third signal end of the signal processor, and the gain adjustment output end of the control module is connected with the gain adjustment input end of the gain module. The control module can adjust the gain of the gain module based on the information output by the third signal end of the signal processor, so that the gain module can gain the information output by the second signal end of the signal processor based on the adjusted gain, thereby achieving the gain adjustment of the signal. Therefore, the communication quality of the antenna can be improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of antennas, and in particular to a vehicle-mounted active antenna and system. BACKGROUND

[0002] The vehicle-to-everything technology can realize communication with other devices through a vehicle-mounted antenna, such as communication with other vehicles or base stations.

[0003] In the related art, a vehicle uses a passive antenna, in order to improve the signal receiving and transmitting quality, two passive antennas are arranged on the vehicle, which results in that the length of the feeder line between at least one passive antenna and the receiver is relatively long, and the line loss caused thereby is relatively high, which affects the communication quality of the antenna. UTILITY MODEL CONTENT

[0004] In order to overcome the problems in the related art, the present disclosure provides a vehicle-mounted active antenna and system,

[0005] By providing a vehicle-mounted active antenna, the vehicle-mounted active antenna comprises an antenna body, a signal processor, a gain module and a control module, the control module can adjust the gain size of the gain module based on the information output by the third signal end of the signal processor, so that the gain module can gain the information output by the second signal end of the signal processor based on the adjusted gain size, thereby realizing gain adjustment of the signal, so as to improve the communication quality of the antenna.

[0006] According to a first aspect of an embodiment of the present disclosure, a vehicle-mounted active antenna is provided, comprising:

[0007] an antenna body;

[0008] a signal processor, a first signal end of the signal processor being used to connect with an output end of an electronic control unit of a vehicle;

[0009] a gain module, a first signal end of the gain module being connected with a second signal end of the signal processor, and a second signal end of the gain module being connected with the antenna body;

[0010] a control module, an input end of the control module being connected with a third signal end of the signal processor, and a gain adjustment output end of the control module being connected with a gain adjustment input end of the gain module.

[0011] Optionally, a transceiver conversion module is further included;

[0012] a first signal end of the transceiver conversion module being connected with a second signal end of the gain module, and a second signal end of the transceiver conversion module being connected with the antenna body;

[0013] The state conversion input end of the transceiving conversion module is connected with the state conversion output end of the control module.

[0014] The transceiving conversion module is used for converting the receiving state and the transmitting state based on the state conversion signal received from the control module.

[0015] Optionally, the gain module comprises a receiving amplifier and a transmitting amplifier.

[0016] The signal input end of the transmitting amplifier is connected with the second signal end of the signal processor, the signal output end of the transmitting amplifier is connected with the antenna body, and the gain adjustment input end of the transmitting amplifier is connected with the gain adjustment output end of the control module.

[0017] The signal input end of the receiving amplifier is connected with the antenna body, the signal output end of the receiving amplifier is connected with the second signal end of the signal processor, and the gain adjustment input end of the receiving amplifier is connected with the gain adjustment output end of the control module.

[0018] Optionally, the transceiving conversion module is further comprised.

[0019] The first signal end of the transceiving conversion module is connected with the signal input end of the receiving amplifier, the second signal end of the transceiving conversion module is connected with the signal output end of the transmitting amplifier, and the third signal end of the transceiving conversion module is connected with the antenna body.

[0020] The state conversion input end of the transceiving conversion module is connected with the state conversion output end of the control module.

[0021] The transceiving conversion module is used for controlling the output end of the transmitting amplifier to be in communication with the antenna body or controlling the input end of the receiving amplifier to be in communication with the antenna body based on the state conversion signal received from the control module.

[0022] Optionally, the receiving amplifier is a low noise amplifier.

[0023] Optionally, the transmitting amplifier is a power amplifier.

[0024] Optionally, the signal processor is a filter, which is used for transmitting the radio frequency signal received from the electronic control unit to the gain module through the second signal end of the signal processor and transmitting the bus signal received from the electronic control unit to the control module through the third signal end of the signal processor.

[0025] According to a second aspect of the embodiments of the present disclosure, a vehicle-mounted active antenna system is provided, comprising an electronic control unit of a vehicle, an antenna transceiver, and at least one vehicle-mounted active antenna provided by the first aspect of the embodiments of the present disclosure, wherein the antenna transceiver is connected with the electronic control unit and the vehicle-mounted active antenna respectively.

[0026] Optionally, the number of the vehicle-mounted active antennas is multiple, and the multiple vehicle-mounted active antennas comprise a vehicle-mounted active antenna arranged at a front part of the vehicle and a vehicle-mounted active antenna arranged at a rear part of the vehicle.

[0027] The technical solutions provided by the embodiments of the present disclosure can have the following beneficial effects:

[0028] The vehicle-mounted active antenna comprises an antenna body, a signal processor, a gain module, and a control module, a first signal end of the signal processor is connected with an output end of the electronic control unit of the vehicle, a first signal end of the gain module is connected with a second signal end of the signal processor, a second signal end of the gain module is connected with the antenna body, an input end of the control module is connected with a third signal end of the signal processor, and a gain adjustment output end of the control module is connected with a gain adjustment input end of the gain module.

[0029] The control module can adjust the gain size of the gain module based on the information output by the third signal end of the signal processor, so that the gain module can perform gain on the information output by the second signal end of the signal processor based on the adjusted gain size, thereby realizing gain adjustment of the signal, so as to improve the communication quality of the antenna.

[0030] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0031] The accompanying drawings, which are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure and, together with the specification, serve to explain the principles of the present disclosure.

[0032] Figure 1 is a structural schematic diagram of a vehicle-mounted active antenna according to an exemplary embodiment.

[0033] Figure 2 is a structural schematic diagram of a vehicle-mounted active antenna system according to an exemplary embodiment.

[0034] Figure 3 is a schematic diagram of the arrangement position of a vehicle-mounted active antenna according to an exemplary embodiment.

[0035] LEGEND OF THE DRAWINGS

[0036] 1, antenna body; 2, signal processor; 3, electronic control unit; 4, gain module; 5, control module; 6, transceiver conversion module; 7, antenna transceiver; 8, vehicle active antenna. DETAILED DESCRIPTION

[0037] The exemplary embodiments will be described in detail herein with reference to the accompanying drawings. In the following description, unless otherwise indicated, like numbers in the different drawings represent similar or identical elements. The following exemplary embodiments described are not meant to represent all embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0038] The Internet of Vehicles technology can realize communication with other devices through the vehicle antenna, such as communication with other vehicles or base stations, etc.

[0039] In the related art, the vehicle uses a passive antenna, in order to improve the quality of signal receiving and transmitting, two passive antennas are arranged on the vehicle, which results in that at least one passive antenna has a long length of feed line between the passive antenna and the receiver, and thus the line loss is high, which affects the communication quality of the antenna.

[0040] Figure 1 is a structural schematic diagram of a vehicle active antenna according to an exemplary embodiment, as shown in Figure 1 The vehicle active antenna 8 includes an antenna body 1, a signal processor 2, a gain module 4, and a control module 5.

[0041] The first signal end of the signal processor 2 is connected with the output end of the electronic control unit 3 of the vehicle. The first signal end of the gain module 4 is connected with the second signal end of the signal processor 2, and the second signal end of the gain module 4 is connected with the antenna body 1. The input end of the control module 5 is connected with the third signal end of the signal processor 2, and the gain adjustment output end of the control module 5 is connected with the gain adjustment input end of the gain module 4.

[0042] In the present embodiment, the vehicle active antenna 8 can be used for signal receiving alone, or for signal transmitting alone, or for both signal receiving and signal transmitting.

[0043] In the case that the vehicle-mounted active antenna 8 is used for signal transmission, the antenna body 1 can be used for signal transmission. The electronic control unit 3 of the vehicle can generate a gain signal based on vehicle external weather information or user control information. The signal processor 2 can receive a bus signal and a radio frequency signal transmitted from the electronic control unit 3 of the vehicle, wherein the bus signal can include the gain signal. The signal processor 2 can process the signal received from the electronic control unit 3 of the vehicle, distinguish the gain signal and the radio frequency signal, and transmit the radio frequency signal to the first signal end of the gain module 4 through the second signal end of the signal processor 2 in the case that the radio frequency signal is included, so that the gain module 4 transmits the radio frequency signal to the antenna body 1 through the second signal end of the gain module 4 after gain processing of the received radio frequency signal based on the gain adjustment signal.

[0044] In the case that the vehicle-mounted active antenna 8 is used for signal transmission, the antenna body 1 can be used for signal transmission. The electronic control unit 3 of the vehicle can generate a gain signal based on vehicle external weather information or user control information. The signal processor 2 can receive a bus signal and a radio frequency signal transmitted from the electronic control unit 3 of the vehicle, wherein the bus signal can include the gain signal. The signal processor 2 can process the signal received from the electronic control unit 3 of the vehicle, distinguish the gain signal and the radio frequency signal, and transmit the radio frequency signal to the first signal end of the gain module 4 through the second signal end of the signal processor 2 in the case that the radio frequency signal is included, so that the gain module 4 transmits the radio frequency signal to the antenna body 1 through the second signal end of the gain module 4 after gain processing of the received radio frequency signal based on the gain adjustment signal.

[0045] For the case that the vehicle-mounted active antenna 8 can be used for signal reception and signal transmission, signal reception and signal transmission can be performed synchronously or converted between signal reception and signal transmission.

[0046] In the embodiment, the control module 5 can adjust the gain size of the gain module 4 based on the information output by the third signal terminal of the signal processor 2, so that the gain module 4 can gain the information output by the second signal terminal of the signal processor 2 based on the adjusted gain size, thereby realizing gain adjustment of the signal, so as to improve the communication quality of the antenna.

[0047] In a possible implementation, the transceiver module 6 can be further included to switch between the signal receiving state and the signal transmitting state.

[0048] The first signal terminal of the transceiver module 6 is connected with the second signal terminal of the gain module 4, and the second signal terminal of the transceiver module 6 is connected with the antenna body 1; the state switching input terminal of the transceiver module 6 is connected with the state switching output terminal of the control module 5; the transceiver module 6 is used to switch between the receiving state and the transmitting state based on the state switching signal received from the control module 5.

[0049] In the embodiment, the bus signal can further include a state signal, and the control module 5 can generate the state switching signal based on the state signal, and transmit the state switching signal to the transceiver module 6 through the state switching output terminal of the control module 5, so that the transceiver module 6 switches between the receiving state and the transmitting state based on the state switching signal. Specifically, the transceiver module 6 can include a receiving circuit and a transmitting circuit, and the transceiver module 6 can switch to the receiving circuit, so that the first signal terminal and the second signal terminal of the transceiver module 6 are connected through the receiving circuit, thereby switching to the receiving state, or the transceiver module 6 can switch to the transmitting circuit, so that the first signal terminal and the second signal terminal of the transceiver module 6 are connected through the transmitting circuit, thereby switching to the transmitting state, so as to realize the receiving or transmitting of the signal.

[0050] In a possible implementation, the gain module 4 includes a receiving amplifier and a transmitting amplifier, the receiving amplifier is used to amplify the corresponding radio frequency signal in the signal receiving, and the transmitting amplifier is used to amplify the corresponding radio frequency signal in the signal transmitting. Optionally, the transmitting amplifier can be a power amplifier, and the receiving amplifier can be a low-noise amplifier.

[0051] The signal input end of the transmitting amplifier is connected with the second signal end of the signal processor 2, the signal output end of the transmitting amplifier is connected with the antenna body 1, and the gain adjustment input end of the transmitting amplifier is connected with the gain adjustment output end of the control module 5. The signal input end of the transmitting amplifier can receive the radio frequency signal transmitted from the second signal end of the signal processor 2, amplify the radio frequency signal through the transmitting amplifier, and transmit the processed radio frequency signal to the antenna body 1 to complete signal transmission. The gain adjustment input end of the transmitting amplifier can also receive the gain adjustment signal output from the gain adjustment output end of the control module 5, and adjust the gain size of the transmitting amplifier in combination with the gain adjustment signal, so as to amplify the radio frequency signal based on the adjusted gain size.

[0052] The signal input end of the receiving amplifier is connected with the antenna body 1, the signal output end of the receiving amplifier is connected with the second signal end of the signal processor 2, and the gain adjustment input end of the receiving amplifier is connected with the gain adjustment output end of the control module 5. After the antenna body 1 receives the radio frequency signal, the radio frequency signal is transmitted to the signal input end of the receiving amplifier. After the receiving amplifier amplifies the radio frequency signal, the processed radio frequency signal is transmitted to the second signal end of the signal processor 2, so that the signal processor 2 transmits the amplified radio frequency signal to the electronic control unit 3 of the vehicle. The gain adjustment input end of the receiving amplifier can also receive the gain adjustment signal output from the gain adjustment output end of the control module 5, and adjust the gain size of the receiving amplifier in combination with the gain adjustment signal, so as to amplify the radio frequency signal based on the adjusted gain size.

[0053] In a possible implementation, the vehicle-mounted active antenna 8 can further include a transceiver conversion module 6 to switch between signal receiving and signal transmitting.

[0054] Specifically, the first signal end of the transceiver conversion module 6 is connected with the signal input end of the receiving amplifier, the second signal end of the transceiver conversion module 6 is connected with the signal output end of the transmitting amplifier, and the third signal end of the transceiver conversion module 6 is connected with the antenna body 1. The state switching input end of the transceiver conversion module 6 is connected with the state switching output end of the control module 5. The transceiver conversion module 6 is configured to control the output end of the transmitting amplifier to be in communication with the antenna body 1, or control the input end of the receiving amplifier to be in communication with the antenna body 1, based on the state switching signal received from the control module 5.

[0055] In the embodiment, the bus signal can also include a state signal, the control module 5 can generate a state conversion signal based on the state signal, and transmit the state conversion signal to the transceiver conversion module 6 through the state conversion output end of the control module 5, so that the transceiver conversion module 6 performs state switching between signal receiving and signal transmitting based on the state conversion module. Specifically, the transceiver conversion module 6 can control the third signal end of the transceiver conversion module 6 to communicate with the second signal end of the transceiver conversion module 6, so as to realize the communication between the output end of the transmitting amplifier and the antenna body 1, thereby switching to the signal transmitting state. The transceiver conversion module 6 can control the third signal end of the transceiver conversion module 6 to communicate with the first signal end of the transceiver conversion module 6, so as to realize the communication between the input end of the receiving amplifier and the antenna body 1, thereby switching to the signal receiving state.

[0056] In a possible implementation, the signal processor 2 can be a filter, which, in the case of signal transmitting, can transmit the radio frequency signal received from the electronic control unit 3 to the gain module 4 through the second signal end of the signal processor 2, and transmit the bus signal received from the electronic control unit 3 to the control module 5 through the third signal end of the signal processor 2. In the case of signal receiving, the filter can transmit the radio frequency signal received from the gain module 4 to the electronic control unit 3 of the vehicle through the first signal end of the signal processor 2, and can transmit the bus signal received from the electronic control unit 3 to the control module 5 through the third signal end of the signal processor 2.

[0057] Figure 2 is a structural schematic diagram of a vehicle-mounted active antenna system according to an exemplary embodiment, as shown in Figure 2 The electronic control unit 3 of the vehicle, the antenna transceiver 7, and at least one vehicle-mounted active antenna 8 in the above embodiment are included, and the antenna transceiver 7 is connected with the electronic control unit 3 and the vehicle-mounted active antenna 8 respectively. The electronic control unit 3 of the vehicle can first transmit the bus signal and the radio frequency signal to the antenna transceiver 7, and then transmit them to the vehicle-mounted active antenna 8 through the antenna transceiver 7 and send them out. The vehicle-mounted active antenna 8 can also transmit the received radio frequency signal to the antenna transceiver 7, and then transmit it to the electronic control unit 3 of the vehicle through the antenna transceiver 7.

[0058] Figure 3 is a schematic diagram of the setting position of a vehicle-mounted active antenna according to an exemplary embodiment, as shown in Figure 3 In a possible implementation, the number of vehicle-mounted active antennas 8 is multiple, and the multiple vehicle-mounted active antennas 8 can include vehicle-mounted active antennas 8 arranged at the front of the vehicle and vehicle-mounted active antennas 8 arranged at the rear of the vehicle.

[0059] In the present embodiment, the number of the vehicle-mounted active antennas 8 is plural, and each is disposed at the front and rear of the vehicle, so that the quality of signal reception and transmission can be improved.

[0060] Other embodiments of the present disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the present disclosure. It is intended that the present disclosure cover any and all variations of the present disclosure comprising modifications and / or additions to, subtractions from, and / or improvements of the disclosed technology now follows within the scope of the present disclosure. It is intended that the specification and examples be considered exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0061] It should be understood that the present disclosure is not limited to the precise structures herein described and illustrated in the drawings, and that various modifications and changes can be made without departing from its scope. The scope of the present disclosure is limited only by the claims that follow.

Claims

1. A vehicle-mounted active antenna, characterized in that, include: Antenna body (1); A signal processor (2), the first signal terminal of which is used to connect to the output terminal of the vehicle's electronic control unit (3); Gain module (4), the first signal terminal of the gain module (4) is connected to the second signal terminal of the signal processor (2), and the second signal terminal of the gain module (4) is connected to the antenna body (1); The control module (5) has its input terminal connected to the third signal terminal of the signal processor (2), and its gain adjustment output terminal is connected to the gain adjustment input terminal of the gain module (4).

2. The vehicle-mounted active antenna according to claim 1, characterized in that, It also includes a transceiver conversion module (6); The first signal terminal of the transceiver module (6) is connected to the second signal terminal of the gain module (4), and the second signal terminal of the transceiver module (6) is connected to the antenna body (1). The state transition input terminal of the transceiver conversion module (6) is connected to the state transition output terminal of the control module (5); The transceiver conversion module (6) is used to switch between receiving and transmitting states based on the state conversion signal received from the control module (5).

3. The vehicle-mounted active antenna according to claim 1, characterized in that, The gain module (4) includes a receiving amplifier and a transmitting amplifier; The signal input terminal of the transmitting amplifier is connected to the second signal terminal of the signal processor (2), the signal output terminal of the transmitting amplifier is connected to the antenna body (1), and the gain adjustment input terminal of the transmitting amplifier is connected to the gain adjustment output terminal of the control module (5). The signal input terminal of the receiving amplifier is connected to the antenna body (1), the signal output terminal of the receiving amplifier is connected to the second signal terminal of the signal processor (2), and the gain adjustment input terminal of the receiving amplifier is connected to the gain adjustment output terminal of the control module (5).

4. The vehicle-mounted active antenna according to claim 3, characterized in that, It also includes a transceiver conversion module (6); The first signal terminal of the transceiver module (6) is connected to the signal input terminal of the receiving amplifier, the second signal terminal of the transceiver module (6) is connected to the signal output terminal of the transmitting amplifier, and the third signal terminal of the transceiver module (6) is connected to the antenna body (1). The state transition input terminal of the transceiver conversion module (6) is connected to the state transition output terminal of the control module (5); The transceiver conversion module (6) is used to control the output terminal of the transmitting amplifier to connect with the antenna body (1) based on the state conversion signal received from the control module (5), or to control the input terminal of the receiving amplifier to connect with the antenna body (1).

5. The vehicle-mounted active antenna according to claim 3, characterized in that, The receiving amplifier is a low-noise amplifier.

6. The vehicle-mounted active antenna according to claim 3, characterized in that, The transmitting amplifier is a power amplifier.

7. The vehicle-mounted active antenna according to any one of claims 1-6, characterized in that, The signal processor (2) is a filter used to transmit the radio frequency signal received from the electronic control unit (3) to the gain module (4) through the second signal terminal of the signal processor (2), and to transmit the bus signal received from the electronic control unit (3) to the control module (5) through the third signal terminal of the signal processor (2).

8. A vehicle-mounted active antenna system, characterized in that, The device includes an electronic control unit (3) for a vehicle, an antenna transceiver (7) and at least one vehicle-mounted active antenna (8) according to any one of claims 1-7, wherein the antenna transceiver (7) is connected to the electronic control unit (3) and the vehicle-mounted active antenna (8) respectively.

9. The vehicle-mounted active antenna system according to claim 8, characterized in that, The number of the vehicle-mounted active antennas (8) is multiple, including a vehicle-mounted active antenna (8) disposed at the front of the vehicle and a vehicle-mounted active antenna (8) disposed at the rear of the vehicle.

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