CN215647393U - Intelligent vehicle-mounted internet terminal and vehicle - Google Patents
Intelligent vehicle-mounted internet terminal and vehicle Download PDFInfo
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- CN215647393U CN215647393U CN202120634006.XU CN202120634006U CN215647393U CN 215647393 U CN215647393 U CN 215647393U CN 202120634006 U CN202120634006 U CN 202120634006U CN 215647393 U CN215647393 U CN 215647393U
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Abstract
The utility model provides an intelligent vehicle-mounted networking terminal and a vehicle, wherein the intelligent vehicle-mounted networking terminal comprises a radio frequency circuit, a radio frequency protection circuit and an antenna module, wherein: a radio frequency circuit for transceiving signals; the radio frequency circuit is connected with the radio frequency protection circuit, and the radio frequency protection circuit is connected with the antenna module; when the radio frequency protection circuit detects that the antenna module is not connected to the external antenna, the radio frequency protection circuit blocks an output signal transmitted by the radio frequency circuit; when the radio frequency protection circuit detects that the antenna module is connected to the external antenna, the radio frequency protection circuit radiates an output signal transmitted by the radio frequency circuit through the external antenna, and can detect whether the external antenna exists or not through the radio frequency protection circuit after the radio frequency circuit sends the output signal.
Description
Technical Field
The utility model relates to the technical field of intelligent vehicles, in particular to an intelligent vehicle-mounted networking terminal and a vehicle.
Background
The 4G is used as a basic function of the current intelligent vehicle-mounted internet terminal, and a user can perform various functional operations such as map navigation, internet entertainment and the like through a 4G network. When the 4G network service is executed, the intelligent vehicle-mounted networking terminal is required to process the radio frequency signal, and the radio frequency signal can be broadcast outwards through the external antenna.
Sometimes, the intelligent vehicle adopts the external antenna, and also can carry out signal transmission operation in the environment without the antenna, when the external antenna is not connected, the high-power output signal generated in the radio frequency circuit can not be released, and can be reflected in the circuit through the antenna socket, so that the corresponding device in the circuit is damaged.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model provides an intelligent vehicle-mounted networking terminal and a vehicle.
The utility model provides an intelligent vehicle-mounted networking terminal, which comprises a radio frequency circuit, a radio frequency protection circuit and an antenna module, wherein the radio frequency protection circuit comprises:
the radio frequency circuit is used for transmitting and receiving signals;
the radio frequency circuit is connected with the radio frequency protection circuit, and the radio frequency protection circuit is connected with the antenna module;
when the radio frequency protection circuit detects that the antenna module is not connected to the external antenna, the radio frequency protection circuit blocks an output signal emitted by the radio frequency circuit;
when the radio frequency protection circuit detects that the antenna module is connected to the external antenna, the radio frequency protection circuit radiates an output signal transmitted by the radio frequency circuit through the external antenna.
According to the intelligent vehicle-mounted networking terminal provided by the utility model, the radio frequency protection circuit comprises a main control unit, a first gating module and a protection unit, wherein:
the main control unit is connected with the antenna module, and the first gating module is respectively connected with the radio frequency circuit, the main control unit, the antenna module and the protection unit;
the main control unit is used for sending a control instruction to the first gating module when detecting that the antenna module is connected to the external antenna, and controlling the first gating module to start a first connection mode, so that the radio frequency circuit, the first gating module, the antenna module and the external antenna are sequentially connected to establish a signal outgoing channel;
the main control unit is further used for sending a control instruction to the first gating module when detecting that the antenna module is not connected to the external antenna, and controlling the first gating module to start a second connection mode, so that the radio frequency circuit, the first gating module and the protection unit are sequentially connected to establish a signal protection channel.
According to the intelligent vehicle-mounted networking terminal provided by the utility model, the antenna module comprises an antenna socket and an antenna insertion detection unit, the antenna insertion detection unit is arranged in the antenna socket, and the antenna insertion detection unit is used for sending a detection signal whether the antenna socket is connected with an external antenna or not to the main control unit.
According to the intelligent vehicle-mounted networking terminal provided by the utility model, the protection unit comprises a protection resistor, one end of the protection resistor is connected to the first gating module, and the other end of the protection resistor is grounded.
According to the intelligent vehicle-mounted networking terminal provided by the utility model, the radio frequency circuit comprises a radio frequency transceiver, a power amplifier, a transmitting channel filter, a receiving channel filter and a second gating module, wherein:
the radio frequency transceiver is connected with the power amplifier, the power amplifier is connected with the transmitting channel filter, the transmitting channel filter is connected with the second gating module, the second gating module is connected with the first gating module and the receiving channel filter, and the receiving channel filter is connected with the radio frequency transceiver.
According to the intelligent vehicle-mounted internet terminal provided by the utility model, the antenna insertion detection unit is grounded or bounced off the ungrounded ground through the metal elastic sheet, and a detection signal is sent to the main control unit.
According to the intelligent vehicle-mounted networking terminal provided by the utility model, the first gating module is provided with a single input end and two-way output ends, the single input end is connected with the main control unit, and the two-way output ends are respectively connected with the antenna module and the protection unit.
The utility model further provides a vehicle which comprises the intelligent vehicle-mounted networking terminal.
According to the intelligent vehicle-mounted internet terminal and the vehicle, provided by the utility model, after the radio frequency circuit sends the output signal, whether the external antenna exists or not can be detected through the radio frequency protection circuit, and when the external antenna does not exist, the radio frequency protection circuit blocks and releases the output signal, so that devices in the radio frequency circuit can be effectively protected, and the safety of the terminal is improved.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an intelligent vehicle-mounted internet terminal provided by the utility model.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The intelligent vehicle-mounted networking terminal and the vehicle provided by the utility model are described in the following with reference to fig. 1.
Fig. 1 shows a schematic structural diagram of an intelligent vehicle-mounted networking terminal provided by the present invention, referring to fig. 1, the intelligent vehicle-mounted networking terminal includes a radio frequency circuit 11, a radio frequency protection circuit 12 and an antenna module 13, wherein:
a radio frequency circuit 11 for transmitting and receiving signals;
the radio frequency circuit 11 is connected with the radio frequency protection circuit 12, and the radio frequency protection circuit 12 is connected with the antenna module 13;
when the radio frequency protection circuit 12 detects that the antenna module 13 is not connected to the external antenna, the radio frequency protection circuit 12 blocks an output signal transmitted by the radio frequency circuit 11;
when the rf protection circuit 12 detects that the antenna module 13 is connected to the external antenna, the rf protection circuit 12 radiates an output signal transmitted by the rf circuit 11 through the external antenna.
In this regard, it should be noted that, in the present invention, the radio frequency circuit is configured on the intelligent vehicle network terminal for transmitting and receiving signals. The radio frequency circuit sends the output signal to the radio frequency protection circuit, and the radio frequency protection circuit needs to judge whether an external antenna is inserted through the antenna module after receiving the output signal. When the radio frequency protection circuit detects that the antenna module is connected to the external antenna, the radio frequency protection circuit indicates that the output signal can be broadcast from the external antenna, so that the radio frequency protection circuit transmits the output signal transmitted by the radio frequency circuit to the antenna module, and then the output signal is radiated through the external antenna. When the radio frequency protection circuit detects that the antenna module is not connected to the external antenna, the radio frequency protection circuit indicates that the output signal cannot be broadcast outwards, and at the moment, the radio frequency protection circuit avoids the output signal returning to the radio frequency circuit and damaging the radio frequency circuit. For example, damage to power amplifiers in the radio frequency circuit. The radio frequency protection circuit can block the output signal emitted by the radio frequency circuit and prevent the output signal from returning to the radio frequency circuit. At this time, the rf protection circuit releases the output signal.
According to the intelligent vehicle-mounted internet terminal provided by the utility model, after the radio frequency circuit sends the output signal, whether the external antenna exists or not can be detected through the radio frequency protection circuit, and when the external antenna does not exist, the radio frequency protection circuit blocks and releases the output signal, so that devices in the radio frequency circuit can be effectively protected, and the safety of the terminal is improved.
In the above-mentioned on-vehicle networking terminal's of intelligence further utility model, mainly explain the concrete structure of radio frequency protection circuit, specifically as follows:
the rf protection circuit 12 includes a main control unit 121, a first gating module 122, and a protection unit 123, wherein:
the main control unit 121 is connected with the antenna module 13, and the first gating module 122 is respectively connected with the radio frequency circuit 11, the main control unit 121, the antenna module 13 and the protection unit 123;
the main control unit 121 is configured to, when detecting that the antenna module 13 is connected to the external antenna, send a control instruction to the first gating module 122, and control the first gating module 122 to start a first connection mode, so that the radio frequency circuit 11, the first gating module 122, the antenna module 13, and the external antenna are sequentially connected to establish a signal outgoing channel;
the main control unit 121 is further configured to send a control instruction to the first gating module 122 when detecting that the antenna module 13 is not connected to the external antenna, and control the first gating module 122 to open the second connection mode, so that the radio frequency circuit 11, the first gating module 122, and the protection unit 123 are sequentially connected to establish a signal protection channel.
To this end, it should be noted that, in the present invention, the antenna module detects whether the external antenna is accessed, and sends a detection signal to the main control unit.
The intelligent vehicle-mounted network terminal processes the output information sent by the radio frequency circuit in a mode of broadcasting and blocking release. Therefore, the first gating module in the radio frequency protection circuit adopts two gating modes.
When the detection signal is that the antenna module is connected with the external antenna, the main control unit sends a control instruction to the first gating module, and the first gating module starts a first connection mode according to the control instruction, wherein the connection mode aims to enable the radio frequency circuit, the first gating module, the antenna module and the external antenna to be connected in sequence to establish a signal outgoing channel. Therefore, the radio frequency circuit sends out an output signal, the output signal reaches the antenna module through the first gating module and is broadcast outwards through the external antenna.
When the detection signal indicates that the antenna module is not connected with the external antenna, the main control unit sends a control instruction to the first gating module, the first gating module starts a second connection mode according to the control instruction, and the second ladder mode aims to enable the radio frequency circuit, the first gating module and the protection unit to be connected in sequence to establish a signal protection channel. Therefore, the radio frequency circuit sends out an output signal, the output signal reaches the protection unit through the first gating module, and the protection unit releases the output signal.
The intelligent vehicle-mounted networking terminal further provided by the utility model is based on two processing modes of the output information sent by the intelligent vehicle-mounted networking terminal to the radio frequency circuit, and realizes the release of the output signal and the protection of the radio frequency circuit under the condition that no external antenna exists by changing the connection mode of the gating module through the main control unit according to the detection signal.
In the further utility model of above-mentioned on-vehicle networking terminal of intelligence, mainly explain the concrete structure of antenna module as follows:
the antenna module 13 includes an antenna socket 131 and an antenna insertion detection unit 132, the antenna insertion detection unit 132 is disposed in the antenna socket 131, and the antenna insertion detection unit 132 is configured to send a detection signal indicating whether the antenna socket 131 is connected to the external antenna to the main control unit 121.
In this regard, it should be noted that, in the present invention, when the external antenna is inserted into the antenna socket or not inserted, the antenna insertion detection unit is triggered, and the antenna insertion detection unit sends the detection signal to the main control unit. The main control unit sends a control instruction of a corresponding connection mode to the first gating module according to the detection signal.
In the further utility model, this antenna inserts detecting element and passes through metal shrapnel ground connection or bounce off ungrounded, sends detected signal to the main control unit. Under the default condition, when no external antenna is inserted, a low level is input because the metal elastic sheet is grounded; when the antenna is inserted, the grounding point is bounced off and high level is input. From this, the detection signal is at a low level or a high level. Accordingly, the main control unit issues a control instruction for the first switching-on mode or the second switching-on mode according to the high level or the low level.
The intelligent vehicle-mounted networking terminal provided by the utility model can distinguish the condition that whether the antenna module is connected with the external antenna or not by using high and low level signals, so that the main control unit can accurately distinguish, control the gating module to be switched on and select different channels for processing output signals.
The utility model further provides an intelligent vehicle-mounted networking terminal, which mainly explains the specific structure of a protection unit, and specifically comprises the following components:
the protection unit comprises a protection resistor, one end of the protection resistor is connected into the first gating module, and the other end of the protection resistor is grounded.
In this regard, it should be noted that, in the present invention, when the main control unit does not detect the access of the external antenna, the first gating module is controlled to connect the output signal to the protection resistor, and the output signal can be released through the protection resistor to the ground, and at this time, the output signal does not return to the radio frequency circuit, thereby avoiding damage. In addition, the protection resistance is set to 50 ohms, which can achieve a good effect.
The utility model further provides an intelligent vehicle-mounted networking terminal, which mainly explains the specific structure of a radio frequency circuit, and specifically comprises the following components:
the radio frequency circuit 11 includes a radio frequency transceiver 111, a power amplifier 112, a transmit channel filter 113, a receive channel filter 114, and a second gating module 115, wherein:
the rf transceiver 111 is connected to the power amplifier 112, the power amplifier 112 is connected to the transmit channel filter 113, the transmit channel filter 113 is connected to the second gating module 115, the second gating module 115 is connected to the first gating module 122 and the receive channel filter 114, and the receive channel filter 114 is connected to the rf transceiver 111.
In this regard, it should be noted that, in the present invention, the rf transceiver can send out an output signal and receive a feedback input signal. Therefore, the second gating module adopts two connection modes to establish a transmitting channel and a receiving channel to realize the processing of signals by the radio frequency transceiver.
After the transmitting channel is established, the rf transceiver 111 sends out an output signal, the output signal generates a high-power output signal through the power amplifier, the high-power output signal reaches the rf protection circuit through the second gating module 115 after the harmonic and interference signals are filtered by the transmitting channel filter 113, and the processing procedure of the rf protection circuit is described in detail above and will not be described herein again.
After a receiving channel is established, the fed-back input signal reaches a receiving channel filter through an external antenna, an antenna socket, a first gating module and a second gating module, and reaches a radio frequency transceiver after harmonic waves and interference signals are filtered.
The utility model further provides an intelligent vehicle-mounted networking terminal, which mainly explains the specific structure of a first gating module, and specifically comprises the following components:
the first gating module is provided with a single input end and a double-path output end, the single input end is connected with the main control unit, and the double-path output end is respectively connected with the antenna module and the protection unit.
In contrast, it should be noted that the processing mode of the output information sent by the radio frequency circuit by the intelligent vehicle-mounted network terminal includes external broadcasting and blocking release. For this reason, the first gating mode needs to adopt two-way output control to realize two gating modes.
The utility model further provides a vehicle, and the intelligent vehicle-mounted networking terminal is mounted on the vehicle.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. The utility model provides an on-vehicle networking terminal of intelligence, its characterized in that includes radio frequency circuit, radio frequency protection circuit and antenna module, wherein:
the radio frequency circuit is used for transmitting and receiving signals;
the radio frequency circuit is connected with the radio frequency protection circuit, and the radio frequency protection circuit is connected with the antenna module;
when the radio frequency protection circuit detects that the antenna module is not connected to the external antenna, the radio frequency protection circuit blocks an output signal emitted by the radio frequency circuit;
when the radio frequency protection circuit detects that the antenna module is connected to the external antenna, the radio frequency protection circuit radiates an output signal transmitted by the radio frequency circuit through the external antenna.
2. The intelligent vehicle-mounted networking terminal according to claim 1, wherein the radio frequency protection circuit comprises a main control unit, a first gating module and a protection unit, wherein:
the main control unit is connected with the antenna module, and the first gating module is respectively connected with the radio frequency circuit, the main control unit, the antenna module and the protection unit;
the main control unit is used for sending a control instruction to the first gating module when detecting that the antenna module is connected to the external antenna, and controlling the first gating module to start a first connection mode, so that the radio frequency circuit, the first gating module, the antenna module and the external antenna are sequentially connected to establish a signal outgoing channel;
the main control unit is further used for sending a control instruction to the first gating module when detecting that the antenna module is not connected to the external antenna, and controlling the first gating module to start a second connection mode, so that the radio frequency circuit, the first gating module and the protection unit are sequentially connected to establish a signal protection channel.
3. The intelligent vehicle-mounted networking terminal according to claim 1 or 2, wherein the antenna module comprises an antenna socket and an antenna insertion detection unit, the antenna insertion detection unit is disposed in the antenna socket, and the antenna insertion detection unit is configured to send a detection signal indicating whether the antenna socket is connected to the external antenna to the main control unit.
4. The intelligent vehicle-mounted internet terminal according to claim 2, wherein the protection unit comprises a protection resistor, one end of the protection resistor is connected to the first gating module, and the other end of the protection resistor is grounded.
5. The intelligent vehicle networking terminal of claim 4, wherein the radio frequency circuit comprises a radio frequency transceiver, a power amplifier, a transmit channel filter, a receive channel filter, and a second gating module, wherein:
the radio frequency transceiver is connected with the power amplifier, the power amplifier is connected with the transmitting channel filter, the transmitting channel filter is connected with the second gating module, the second gating module is connected with the first gating module and the receiving channel filter, and the receiving channel filter is connected with the radio frequency transceiver.
6. The intelligent vehicle-mounted internet terminal according to claim 3, wherein the antenna insertion detection unit sends a detection signal to the main control unit through grounding or bouncing off of a metal dome.
7. The intelligent vehicle-mounted networking terminal according to claim 2, wherein the first gating module has a single input end and a dual output end, the single input end is connected with the main control unit, and the dual output end is respectively connected with the antenna module and the protection unit.
8. A vehicle, characterized in that the vehicle comprises the intelligent vehicle-mounted networking terminal of any one of the preceding claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120634006.XU CN215647393U (en) | 2021-03-29 | 2021-03-29 | Intelligent vehicle-mounted internet terminal and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120634006.XU CN215647393U (en) | 2021-03-29 | 2021-03-29 | Intelligent vehicle-mounted internet terminal and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215647393U true CN215647393U (en) | 2022-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120634006.XU Active CN215647393U (en) | 2021-03-29 | 2021-03-29 | Intelligent vehicle-mounted internet terminal and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215647393U (en) |
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2021
- 2021-03-29 CN CN202120634006.XU patent/CN215647393U/en active Active
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