CN218558775U - Vehicle-mounted wireless transmission system and vehicle - Google Patents
Vehicle-mounted wireless transmission system and vehicle Download PDFInfo
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- CN218558775U CN218558775U CN202222125107.1U CN202222125107U CN218558775U CN 218558775 U CN218558775 U CN 218558775U CN 202222125107 U CN202222125107 U CN 202222125107U CN 218558775 U CN218558775 U CN 218558775U
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Abstract
The vehicle-mounted wireless transmission system comprises at least one group of information acquisition end and a vehicle-mounted control end, wherein the information acquisition end comprises an information acquisition module, a sub-controller and a first wireless transmission module; the vehicle-mounted control end comprises a main controller and a second wireless transmission module; the sub-controllers realize data and signal transmission with the main controller through the first wireless transmission module, the second wireless transmission module and the main controller. According to the vehicle-mounted wireless transmission system, through the first wireless transmission module and the second wireless transmission module, bidirectional transmission of information data between the sub-controllers and the main controller is achieved, redundant cable wiring in a vehicle is omitted, vehicle electrical safety is guaranteed, and meanwhile high-speed, safe and high-interference-resistance data transmission can be achieved.
Description
Technical Field
This paper relates to on-vehicle data transmission technical field, especially relates to a vehicle-mounted wireless transmission system and vehicle.
Background
The camera of the existing vehicle-mounted video monitoring system is usually fixedly connected with a host computer and is in wired connection, and is easily discovered by a vehicle intruder. In addition, the general wireless video monitoring is point-to-point video communication, and when the vehicle-mounted wireless video monitoring system transmits images, the images are generally transmitted through a mobile network, such as a 3G network, so that a user must pay data traffic fees on schedule, and the use cost is very high. In addition, for example, the vehicle-mounted audio-visual system, the seat system, the atmosphere lamp system and the like still need to adopt corresponding high-speed data transmission cables to realize information transmission, and the vehicle-mounted control terminal controls the systems, so that the wire arrangement not only increases the using amount of the automobile wire harness, but also increases the complexity of the automobile wire harness wiring and the difficulty of wire harness assembly and maintenance, and the cost of the automobile is high.
SUMMERY OF THE UTILITY MODEL
An in-vehicle wireless transmission system and a vehicle are provided to at least partially solve the above problems.
There is provided herein an in-vehicle wireless transmission system, comprising:
the system comprises at least one group of information acquisition terminals, a plurality of groups of wireless communication terminals and a plurality of groups of wireless communication terminals, wherein each information acquisition terminal comprises an information acquisition module, a sub-controller and a first wireless transmission module;
the vehicle-mounted control end comprises a main controller and a second wireless transmission module;
the sub-controllers realize data and signal transmission through the first wireless transmission module, the second wireless transmission module and the main controller.
Preferably, the sub-controller is integrated with at least one of the information collection module and the first wireless transmission module.
Preferably, the first wireless transmission module and the second wireless transmission module are green tooth transmission modules; or, the first wireless transmission module and the second wireless transmission module are both bluetooth transmission modules.
Preferably, the second wireless transmission module is also in communication connection with a mobile terminal.
Preferably, the vehicle-mounted control end further comprises a random storage module, and the random storage module is respectively connected with the second wireless transmission module and the main controller to store data from the sub-controllers and supply the data to the main controller for reading.
Preferably, the vehicle-mounted control terminal further comprises a data storage unit, and the data storage unit is connected with the main controller and used for storing the data read by the main controller.
Preferably, the vehicle-mounted control end further comprises a vibration sensor, the output end of the vibration sensor is connected with the input end of the main controller, and the vibration sensor is used for detecting vibration information of the vehicle body and sending the vibration information of the vehicle body to the main controller.
Preferably, the main controller controls whether to lock data within a predetermined time interval according to whether the vehicle body vibration information reaches a predetermined threshold.
Preferably, the shock sensor is a gravitational acceleration sensor and the predetermined threshold is selected in the range of six to seven times the gravitational acceleration value.
Preferably, the predetermined time interval is: starting from the first t1 seconds from the time t0 of sending the locking control signal and ending to the last t2 seconds of the time t0, wherein t1 is selected within the range of 8s-12s, and t2 is selected within the range of 20s-35 s.
A vehicle is also provided herein, comprising the vehicle-mounted wireless transmission system according to any of the above embodiments.
The vehicle-mounted wireless transmission system and the vehicle have the following beneficial effects:
1. through first, the second wireless transmission module, realized data, signal both way transmission between branch controller and main control unit, both saved the unnecessary cable in the car and walked the line, guarantee vehicle electrical safety, also can realize high-speed, safe, high anti-interference data, signal transmission simultaneously.
2. The first wireless transmission module and the second wireless transmission module are green tooth transmission modules, and the green tooth wireless transmission technology can be connected with terminals which can randomly support Bluetooth for communication and downloading in the same communication mode and frequency band as the Bluetooth.
3. The green tooth wireless transmission technology can support the communication speed of 4M bit/s, and can also realize the wireless network transmission with high interference resistance.
4. The green tooth transmission module is matched with the low-end sub-controller, so that the structure is simple, the design is simple, and the manufacturing cost is low.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art, the drawings used in 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 only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 shows a block diagram of an on-vehicle wireless transmission system of the preferred embodiment herein.
Fig. 2 is a circuit diagram of the bluetooth transmission module in fig. 1.
Description of reference numerals:
100-an information acquisition end; 200-vehicle control end; 110-an information acquisition module; 120-minute controller; 130-green tooth transmission module; 210-a random access memory module; 220-a master controller; 230-a data storage unit; 240-vibration sensor; 300-a mobile terminal; l121-first inductor, L122-second inductor, L123-third inductor, L131-fourth inductor, C121-third capacitor, C122-fourth capacitor, C123-fifth capacitor, C124-sixth capacitor, C125-seventh capacitor and C131-eighth capacitor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments herein without making any creative effort, shall fall within the scope of protection.
It should be noted that the terms "first," "second," and the like in the description and claims herein and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments herein described are capable of operation in sequences other than those illustrated or described herein.
Referring to fig. 1, the present embodiment provides an in-vehicle wireless transmission system. The vehicle-mounted wireless transmission system comprises at least one group of information acquisition terminals 100 and a vehicle-mounted control terminal 200.
The information acquisition terminal 100 comprises an information acquisition module 110, a sub-controller 120 and a first wireless transmission module, wherein the information acquisition module 110 is in communication connection with the sub-controller 120, and the sub-controller 120 is in communication connection with the first wireless transmission module; the vehicle-mounted control end 200 comprises a main controller 220 and a second wireless transmission module; the sub-controller 120 realizes bidirectional data and signal transmission with the main controller 220 through the first wireless transmission module, the second wireless transmission module.
It can be understood that the first and second wireless transmission modules can be bidirectional data and signal transmission modules, and thus, through the first and second wireless transmission modules, bidirectional transmission of data and signals between the sub-controller 120 and the main controller 220 is realized, unnecessary cable routing in the vehicle is omitted, electrical safety of the vehicle is guaranteed, and high-speed, safe and high-interference-resistance data and signal transmission can be realized.
It is understood that the data information collected by the information collection module 110 may include, but is not limited to: video data information, audio data information, and vehicle system state data information.
In some embodiments, the sub-controller 120 is integrated with at least one of the information collection module 110, the first wireless transmission module.
Preferably, the first wireless transmission module and the second wireless transmission module are the bluetooth transmission module 130. The communication mode and frequency band of the green tooth wireless transmission technology can be connected with any terminal supporting the Bluetooth for communication and downloading like the Bluetooth; moreover, the green tooth wireless transmission technology can support the communication speed of more than 4M bit/s, and can also realize wireless network transmission with high interference resistance. The core features of green teeth include: the system has the advantages that the ultra-low power consumption point-to-point or point-to-multipoint low-speed information is wirelessly transmitted, the embedded design is used as a complete subsystem embedded application system, the system power consumption is below 6mW, and the communication distance is not less than 5 meters. And, the green tooth transmission module 130 is adopted to match with the low-end sub-controller 120, so that the structure is simple, the design is simple, and the manufacturing cost is low. Of course, it can also be understood that the first wireless transmission module and the second wireless transmission module can be both bluetooth transmission modules. Typically, the band of Bluetooth is 2400-2483.5MHz (including the guard band). Certainly, it can also be understood that the first wireless transmission module and the second wireless transmission module may communicate with each other in a band of 300-3000MHz, where the first wireless transmission module specifically includes tropospheric scattering communication (700-1000 MHz), small-capacity (8-12 channels) microwave relay communication (352-420 MHz), and medium-capacity (120 channels) microwave relay communication (1700-2400 MHz); even communication is carried out in a wave band of 3-30GHz, wherein the communication specifically comprises large-capacity (2500 channels and 6000 channels) microwave relay communication (3600-4200 MHz and 5850-8500 MHz), digital communication, satellite communication and waveguide communication; to achieve data and signal transmission.
Fig. 2 shows a circuit schematic of the green tooth transmission module 130. Specifically, the bluetooth transmission module 130 includes a bluetooth chip U1, a crystal oscillator XTAL, and a coupled antenna circuit for transmitting and receiving signals.
As shown in fig. 2, the SCLK pin, the SO pin, the GOD2 pin, and the CSn pin of the bluetooth chip U1 may be connected to the sub-controller 120 or the main controller 220 to implement bidirectional data communication between the main controller 220 and the sub-controller 120 through the bluetooth transmission module 130.
The crystal oscillator XTAL is connected to the XOSC _ Q1 pin and the XOSC _ Q2 pin of the GROOVE chip U1 for generating the clock frequency necessary for the GROOVE chip U1. The first capacitor C81 and the second capacitor C101 are matched with the crystal oscillator XTAL to assist the crystal oscillator to start oscillation, so that the crystal oscillator outputs proper resonant frequency.
The coupled antenna circuit includes: the inductor comprises a first inductor L121, a second inductor L122, a third inductor L123, a fourth inductor L131, a third capacitor C121, a fourth capacitor C122, a fifth capacitor C123, a sixth capacitor C124, a seventh capacitor C125 and an eighth capacitor C131.
One end of an eighth capacitor C131 is connected with the positive electrode of the power supply, the other end of the eighth capacitor C131 is connected with the RF _ N pin (radio frequency negative electrode) of the green tooth chip U1, one end of a fourth inductor L131 is connected with the RF _ N pin of the green tooth chip U1, and the other end of the fourth inductor L131 is connected with an external antenna through a second inductor L122, a third inductor L123 and a seventh capacitor C125 in sequence; one end of the third capacitor C121 is connected to the RF _ P pin (radio frequency positive electrode) of the bluetooth chip U1, and the other end is connected to the connection point between the fourth inductor L131 and the second inductor L122; one end of the fourth capacitor C122 is connected to a connection point between the second inductor L122 and the third inductor L123, and the other end is grounded; one end of the fifth capacitor is connected with a connection point between the third inductor L123 and the seventh capacitor C125, and the other end of the fifth capacitor is grounded; one end of the first inductor L121 is connected to a connection point between the RF _ P pin of the green chip U1 and the third capacitor C121, and the other end of the sixth capacitor C124 is grounded.
The AVDD pin (including the 15 th pin, the 14 th pin, the 11 th pin and the 9 th pin) and the DVDD pin and the DGUARD pin of the green tooth chip U1 are connected with the positive electrode of a power supply so as to realize power supply to the green tooth chip U1.
In some embodiments, the second wireless transmission module is also communicatively coupled to the mobile terminal 300. The mobile terminal 300 may be a mobile phone, a tablet computer, a notebook computer, etc. The program of the mobile terminal 300 may be connected to the in-vehicle wireless transmission system via the second wireless transmission module to read and transmit data. It will be appreciated that the mobile terminal may also be configured to support bluetooth or to support existing bluetooth communication functions.
In some embodiments, the vehicle-mounted control terminal 200 further includes a random access memory module 210, and the random access memory module 210 is connected to the second wireless transmission module and the main controller 220 respectively, so as to store data from the sub-controller 120 and provide the data for the main controller 220 to read. The random Access Memory module 210 can be understood as a RAM (Ramdom Access Memory) random Access Memory.
In some embodiments, the vehicle-mounted control terminal 200 further includes a data storage unit 230, and the data storage unit 230 is connected to the main controller 220 and is used for storing data read by the main controller 220. The data storage unit 230 may be understood as an HDD (hard disk drive) hard disk drive or an SSD (Solid State Drives) Solid State disk.
In some embodiments, the main controller 220 may be integrated with at least one of the random access memory module 210, the data storage unit 230, and the second wireless transmission module. Therefore, the arrangement of each component can be simplified, and the circuit structure can be simplified.
In some embodiments, the information collection module 110 may be a video collection module, the vehicle-mounted control terminal 200 further includes a vibration sensor 240, an output end of the vibration sensor 240 is connected to an input end of the main controller 220, and the vibration sensor 240 is configured to detect vehicle body vibration information and send the vehicle body vibration information to the main controller 220.
Specifically, the main controller 220 may control whether to lock the video data within a predetermined time interval according to whether the vehicle body vibration information reaches a predetermined threshold.
More specifically, the shock sensor 240 may be a gravitational acceleration sensor, and the predetermined threshold value is selected in a range of six times to seven times a gravitational acceleration value.
It can be understood that if a vehicle has a collision accident, the vehicle body will be necessarily vibrated, so the vibration sensor 240 can be arranged to lock the video data in the corresponding time period to provide data support for the follow-up investigation situation.
Preferably, the predetermined time interval is: starting from the first t1 seconds from the time t0 of sending the locking control signal and ending to the last t2 seconds of the time t0, wherein t1 is selected within the range of 8s-12s, and t2 is selected within the range of 20s-35 s.
In this embodiment, t1 is set to 10s and t2 is set to 30s. That is, the predetermined time period may be set to 10s from the issuance of the lock control signal to 30s after the issuance of the lock control signal.
It can be understood from the above embodiments that the present disclosure does not limit the type of the data information collected by the information collecting module 110, and the purpose is to achieve efficient bidirectional transmission of the data information between the sub-controller 120 and the main controller 220.
A vehicle is also provided herein, comprising the vehicle-mounted wireless transmission system of any of the above embodiments. The vehicle here may be a motor vehicle or an electric vehicle.
Therefore, the vehicle-mounted wireless transmission system and the vehicle realize the two-way transmission of data and signals between the sub-controller 120 and the main controller 220 through the first wireless transmission module and the second wireless transmission module, not only saves redundant cable wiring in the vehicle and ensures the electrical safety of the vehicle, but also can realize the high-speed, safe and high-interference-resistance data and signal transmission; the first wireless transmission module and the second wireless transmission module are both green tooth transmission modules 130, and the green tooth wireless transmission technology can be connected with any terminal supporting Bluetooth for communication and downloading in the same communication mode and frequency band as the Bluetooth; the green tooth wireless transmission technology can support the communication speed of more than 4M bit/s and can also realize high-interference-resistance wireless network transmission; the green tooth transmission module 130 is adopted to match with the low-end sub-controller 120, so that the structure is simple, the design is simple, and the manufacturing cost is low.
It should also be understood that, in the embodiments herein, the term "and/or" is only one kind of association relation describing an associated object, meaning that three kinds of relations may exist. For example, a and/or B, may represent: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
Those of ordinary skill in the art will appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the components and steps of the various examples have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided herein, it should be understood that the disclosed system, apparatus, and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may also be an electric, mechanical or other form of connection.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purposes of the embodiments herein.
In addition, functional units in the embodiments herein may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The principles and embodiments of this document are explained herein using specific examples, which are presented only to aid in understanding the methods and their core concepts; meanwhile, for a person skilled in the art, according to the idea of the present disclosure, the specific implementation manner and the application range may be changed, and in conclusion, the content of the present disclosure should not be construed as limiting the present disclosure.
Claims (11)
1. An in-vehicle wireless transmission system, comprising:
the system comprises at least one group of information acquisition terminals, a plurality of groups of wireless communication terminals and a plurality of groups of wireless communication terminals, wherein each information acquisition terminal comprises an information acquisition module, a sub-controller and a first wireless transmission module;
the vehicle-mounted control end comprises a main controller and a second wireless transmission module;
the sub-controllers realize data and signal transmission through the first wireless transmission module, the second wireless transmission module and the main controller.
2. The vehicle-mounted wireless transmission system according to claim 1, wherein the sub-controller is integrated with at least one of the information collection module and the first wireless transmission module.
3. The vehicle-mounted wireless transmission system according to claim 1, wherein the first wireless transmission module and the second wireless transmission module are green tooth transmission modules; or
The first wireless transmission module and the second wireless transmission module are both Bluetooth transmission modules.
4. The vehicle-mounted wireless transmission system according to claim 1, wherein the second wireless transmission module is further in communication connection with a mobile terminal.
5. The vehicle-mounted wireless transmission system according to claim 1, wherein the vehicle-mounted control terminal further comprises a random storage module, and the random storage module is respectively connected with the second wireless transmission module and the main controller to store data from the sub-controllers and supply the data to the main controller for reading.
6. The vehicle-mounted wireless transmission system according to claim 5, wherein the vehicle-mounted control terminal further comprises a data storage unit, and the data storage unit is connected with the main controller and used for storing the data read by the main controller.
7. The vehicle-mounted wireless transmission system according to claim 1, wherein the vehicle-mounted control terminal further comprises a vibration sensor, an output end of the vibration sensor is connected with an input end of the main controller, and the vibration sensor is used for detecting vehicle body vibration information and sending the vehicle body vibration information to the main controller.
8. The vehicle-mounted wireless transmission system according to claim 7, wherein the main controller controls whether to lock data within a predetermined time interval according to whether vehicle body vibration information reaches a predetermined threshold.
9. The vehicle-mounted wireless transmission system according to claim 8, wherein the shock sensor is a gravitational acceleration sensor, and the predetermined threshold value is selected in a range of six times to seven times a gravitational acceleration value.
10. The vehicle-mounted wireless transmission system according to claim 8, wherein the predetermined time interval is: starting from the first t1 seconds from the time t0 of sending the locking control signal and ending to the last t2 seconds of the time t0, wherein t1 is selected within the range of 8s-12s, and t2 is selected within the range of 20s-35 s.
11. A vehicle characterized by comprising an in-vehicle wireless transmission system according to any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222125107.1U CN218558775U (en) | 2022-08-12 | 2022-08-12 | Vehicle-mounted wireless transmission system and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222125107.1U CN218558775U (en) | 2022-08-12 | 2022-08-12 | Vehicle-mounted wireless transmission system and vehicle |
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| Publication Number | Publication Date |
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| CN218558775U true CN218558775U (en) | 2023-03-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222125107.1U Active CN218558775U (en) | 2022-08-12 | 2022-08-12 | Vehicle-mounted wireless transmission system and vehicle |
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| CN (1) | CN218558775U (en) |
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- 2022-08-12 CN CN202222125107.1U patent/CN218558775U/en active Active
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Address after: No. 957, Shunda Road, Gaoxin District, Changchun City, Jilin Province, 130000 Patentee after: Changchun Jieyi Automobile Technology Co.,Ltd. Address before: 130000 957 Shunda Road, Changchun hi tech Development Zone, Jilin Patentee before: CHANGCHUN JIEYI AUTO PARTS CO.,LTD. |
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