WO2024037431A1

WO2024037431A1 - Head-up display system controlled by wireless network

Info

Publication number: WO2024037431A1
Application number: PCT/CN2023/112443
Authority: WO
Inventors: 王超
Original assignee: 吉林省中赢高科技有限公司
Priority date: 2022-08-13
Filing date: 2023-08-11
Publication date: 2024-02-22
Also published as: CN115942279A

Abstract

Disclosed is a head-up display system controlled by a wireless network. The head-up display system comprises: a primary controller arranged in a vehicle, and at least one sub-controller arranged in a head-up display system, the primary controller performing data and signal transmission with the sub-controllers via a wireless network. In the present invention, the primary controller controls each sub-controller via a wireless network, thereby not requiring a wiring harness for connecting to each sub-controller, reducing the number of wiring harnesses used and decreasing the cost of the entire head-up display system.

Description

A head-up display system controlled via a wireless network

Related applications

This application claims priority from the Chinese invention patent application with application number 202210970737.0 submitted on August 13, 2022, and cites the entire disclosure of the above patent application as part of this application.

Technical field

The present invention relates to the technical field of automotive electrical appliances, and more specifically, to a head-up display system controlled through a wireless network.

Background technique

Automobile instruments are an important interface for information exchange between the driver and the car. With the development of automotive electronics technology, the amount of information on car driving conditions and various mechanisms and parts has increased significantly. When driving a vehicle, drivers must know more and more timely whether the various parameters of the car and engine are normal, so as to take timely measures. measures to prevent accidents.

The head-up display inside the car is usually located in front of the steering wheel of the car, allowing the driver to observe the various instrument indication information in the head-up display at any time. Normally, each instrument inside the car needs to be connected to a wiring harness to transmit power and display instrument information. However, there are many instruments inside the car, and the corresponding wiring harness branches will also increase accordingly, which not only increases the amount of wiring harness used in the car, but also increases the number of wiring harness branches. It also increases the complexity of automobile wiring harness wiring, increases the difficulty of automobile assembly and maintenance, and also makes the cost of automobiles remain high.

Contents of the invention

In the field of automotive electrical technology, there is an urgent need for a head-up display system that reduces automotive wiring harnesses, is easy to install and maintain, and has low cost.

The purpose of the present invention is to provide a new technical solution for a head-up display system controlled through a wireless network. The main controller of the present invention controls each sub-controller through a wireless network and does not need to use wire harnesses to connect to each sub-controller, thereby saving the usage of wire harnesses and reducing the cost of the entire head-up display system.

The invention discloses a head-up display system controlled through a wireless network, which includes a main controller arranged in a vehicle body and at least one sub-controller arranged in the head-up display system. The main controller communicates with the sub-controller through a wireless network. The controller carries out data and signal transmission.

Optionally, the main controller includes a wireless transmitting unit, the sub-controller includes a wireless receiving unit, the output end of the main controller is connected to the wireless transmitting unit and sends control signals through the wireless network, and the sub-controller includes a wireless receiving unit. control The input end of the transmitter is connected to the wireless receiving unit and receives the control signal.

Optionally, the main controller includes a wireless receiving unit, the sub-controller includes a wireless transmitting unit, the output end of the sub-controller is connected to the wireless transmitting unit and sends the status information through a wireless network, so The input end of the main controller is connected to the wireless receiving unit and receives the status information.

Optionally, the wireless transmitting unit further includes an encryption module. The output ends of the main controller and the sub-controller are connected to the wireless transmitting unit through the encryption module. The encryption module converts the control signal into Or the status information is encrypted; the wireless receiving unit includes a decryption module, the input terminals of the main controller and the sub-controller are connected to the wireless receiving unit through the decryption module, and the decryption module will receive Decrypt the control signal or the status information.

Optionally, a battery is also included. The battery is detachably installed inside the head-up display. The battery is electrically connected to the sub-controller and provides power to the sub-controller.

Optionally, the sub-controller is provided with a power monitoring device, the power monitoring device can monitor the remaining power of the battery, the power monitoring device is electrically connected to the battery and the sub-controller, and connects the power monitoring device to the sub-controller. The remaining power information of the battery is fed back to the sub-controller.

Optionally, the sub-controller is equipped with a power alarm device, the power alarm device is electrically connected to the sub-controller, and an alarm value of the remaining power of the battery is set in the sub-controller. When the remaining power of the battery When the power is lower than the alarm value, the sub-controller feeds back the alarm signal to the main controller through the wireless network.

Optionally, a battery charging device is also provided in the vehicle body, and the battery is placed in the battery charging device and charged.

Optionally, a wireless power receiving coil is provided on the battery, and the wireless power receiving coil is connected to an electrode of the battery.

The main controller of the present invention controls each sub-controller through a wireless network and does not need to use wire harnesses to connect to each sub-controller, thereby saving the usage of wire harnesses and reducing the cost of the entire head-up display system. It also has a wireless charging function, which can charge the battery in a variety of ways to avoid the component controller not functioning properly due to low battery power.

Other features of the invention and its advantages will become apparent from the following detailed description of exemplary embodiments of the invention with reference to the accompanying drawings.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Figure 1 is a structural block diagram of the head-up display system of the present invention;

Figure 2 is another structural block diagram of the head-up display system of the present invention;

Figure 3 is a structural block diagram of the battery of the head-up display system of the present invention;

Figure 4 is a schematic structural diagram of the wireless rechargeable battery of the head-up display system of the present invention.

Marked in the figure are as follows:
1. Main controller; 2. Sub-controller; 3. Head-up display system;
6. Battery; 61. Wireless power receiving coil; 62. Wireless charging coil; 63. Power monitoring device; 64. Power alarm device;
71. Wireless transmitting unit; 72. Wireless receiving unit
81. Encryption module; 82. Decryption module.

Detailed ways

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values set forth in these examples do not limit the scope of the invention unless otherwise specifically stated.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application or uses.

Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered a part of the specification.

In all examples shown and discussed herein, any specific values are to be construed as illustrative only and not as limiting. Accordingly, other examples of the exemplary embodiments may have different values.

The present invention provides a head-up display system controlled through a wireless network. As shown in Figure 1, it includes a main controller 1 arranged in the vehicle body and at least one sub-controller 2 arranged in the head-up display system 3. The main controller 1 Data and signals are transmitted through the wireless network and the sub-controller 2.

The present invention provides a head-up display system controlled through a wireless network. Through the wireless connection between the main controller 1 and the sub-controller 2, control signals and status information are transmitted, saving the amount of wiring harness of the entire vehicle and reducing the weight of the entire vehicle. While reducing costs, it also contributes to energy conservation and emission reduction. There is no need to carry out complex wiring or drill holes in various components to pass through the wiring harness, making the head-up display 3 system very easy to install, repair and replace, reducing processing and maintenance costs and improving production efficiency.

The head-up display system 3 is installed in the car so that the driver can observe the information in the head-up display system 3 at any time. drive The driver can accurately obtain the current parameter status of the car based on the information displayed by the head-up display system.

In one embodiment, the main controller 1 includes a wireless transmitting unit 71, and the sub-controller 2 includes a wireless receiving unit 72. The output end of the main controller 1 is connected to the wireless transmitting unit 71 and sends control signals through the wireless network. The sub-controller 1 The input end of the device 2 is connected to the wireless receiving unit 72 and receives the control signal.

The wireless transmitting unit 71 is capable of converting the control signal of the main controller 1 into a wireless transmission signal and then sending it out through a wireless transmitting antenna. For example, F05R is a small-sized, low-voltage, micro-power wireless transmitting module. Adopting SMT technology, the sound surface frequency is stable and the performance is stable. It is especially suitable for small-sized wireless remote control and data transmission products powered by battery 6. The wireless receiving unit 72 is generally divided into two types: super regenerative and superheterodyne receiving modules. According to whether there is codec, it can also be divided into a wireless receiving head (without decoding, outputting pulse signals) and a wireless receiving board (with decoding chip, Output TTL level signal). The control signal of the main controller 1 is sent by the wireless transmitting unit 71 and then received by the wireless receiving unit 72, and converted into a control signal and transmitted to the sub-controller 2, and the sub-controller 2 controls the corresponding head-up display 3 .

In one implementation, as shown in Figure 2, the main controller 1 includes a wireless receiving unit 72, the sub-controller 2 includes a wireless transmitting unit 71, and the output end of the sub-controller 2 is connected to the wireless transmitting unit 71 and communicates through a wireless network. To send status information, the input terminal of the main controller 1 is connected to the wireless receiving unit 72 and receives the status information.

When the operating status of the head-up display system 3 on the vehicle body changes, the status information needs to be fed back to the main controller 1. At this time, the sub-controller 2 needs to be equipped with a wireless transmitting unit 71. The sub-controller 2 can transmit the head-up display system The status information of 3 is passed to the wireless transmitting unit 71, and then the wireless transmitting unit 71 sends it out through the wireless transmitting antenna. The main controller 1 is equipped with a wireless receiving unit 72. After the wireless receiving unit 72 of the main controller 1 receives the signal sent by the wireless network, it converts it into the information of the head-up display system 3, so that the driver can obtain the information in the head-up display system 3 at any time. , can make corresponding feedback in a timely manner.

In one embodiment, as shown in Figure 2, the wireless transmitting unit 71 also includes an encryption module 81. The output ends of the main controller 1 and the sub-controller 2 are connected to the wireless transmitting unit 71 through the encryption module 81. The encryption module 81 The control signal or status information is encrypted; the wireless receiving unit 72 includes a decryption module 82. The input terminals of the main controller 1 and the sub-controller 2 are connected to the wireless receiving unit 72 through the decryption module 82. The decryption module 82 converts the received control signal or status Information decryption.

With the increasing progress of vehicle informatization, in-vehicle networks have been set up and used in most cars, and the signal negotiation between different vehicles has also increased accordingly. In order to prevent the wireless control signals between different vehicles from If other vehicles are mistakenly operated, each vehicle's signal transmission and reception will have corresponding encryption and decryption procedures. This is also to prevent hackers from invading the vehicle and prevent external signals from accessing the vehicle's information transmission network. Encryption module 81 It uses the internal encoder to re-encode the control signal or status information according to certain rules, that is, the key, and then sends the encoded information through wireless transmission. In this way, even if other vehicles receive the wireless information, since there is no The corresponding key cannot identify the corresponding information. At the same time, the key will also have its own identification code. If the identification code of other vehicles receiving information is inconsistent with its own identification code, it will not identify the corresponding information. Only the information receiving device corresponding to the identification code, that is, the corresponding decryption module 82, will decrypt the information using the corresponding rules and pass the decrypted information to the corresponding main controller 1 or sub-controller 2.

In one embodiment, a battery 6 is also included. The battery 6 is detachably installed inside the head-up display 3 . The battery 6 is electrically connected to the sub-controller 2 and provides power to the sub-controller 2 .

As mentioned above, the head-up display system 3 is connected to the sub-controller. If the power supply is provided by a car generator or a battery, a lot of power cords need to be connected, resulting in an increase in installation man-hours. Therefore, the head-up display system 3 is equipped with a battery 6 , and is detachably installed in the head-up display system 3 to facilitate the replacement of the battery 6 . The battery 6 is located together with the sub-controller 2 and provides electric energy to the sub-controller 2 .

In one embodiment, as shown in Figure 3, the sub-controller 2 is provided with a power monitoring device 63. The power monitoring device 63 can monitor the remaining power of the battery 6. The power monitoring device 63 is electrically connected to the battery 6 and the sub-controller 2. And the remaining power information of the battery 6 is fed back to the sub-controller 2.

The battery 6 may be a dry battery 6 or a rechargeable battery 6. The rechargeable battery 6 may be a lead-acid battery 6, a nickel-cadmium battery 6, a nickel-metal hydride battery 6, a lithium-ion battery 6, etc. In order to enable the battery 6 to be reused, a rechargeable battery 6 is used in the present invention. When the rechargeable battery 6 is used for a certain period, the power inside the battery 6 will be consumed, making it impossible to drive the electrical load device and secondary controller or analyzer. The controller 2 therefore needs to constantly monitor the remaining power in the battery 6 . The power monitoring device 63 is connected to the electrodes of the battery 6. The internal detection device can detect the voltage and current status of the battery 6, calculate the remaining power of the battery 6 through a pre-stored calculation method, and feed back the remaining power information of the battery 6 to Sub-controller 2. The sub-controller 2 transmits the remaining power information of the battery 6 to the main controller 1 through the wireless network, and the main controller 1 displays it on the display interface, so that the driver can monitor the status of the battery 6 carried by each head-up display 3 in real time. remaining battery.

In one embodiment, as shown in Figure 3, the sub-controller 2 is provided with a power alarm device 64. The power alarm device 64 is electrically connected to the sub-controller 2. An alarm value for the remaining power of the battery 6 is set in the sub-controller 2. When When the remaining power of the battery 6 is lower than the alarm value, the sub-controller 2 feeds back the alarm signal to the main controller 1 through the wireless network.

If the driver does not notice that the remaining power information of the battery 6 is lower than the threshold, it may cause the head-up display system 3 or the sub-controller 2 to stop working due to lack of power. Therefore, the battery 6 is also equipped with a power alarm device 64. The power alarm device 64 is connected to the sub-controller 2 through the connecting wire harness, and the remaining amount of the battery 6 is set in the sub-controller 2. The threshold value of the power information is the alarm value. If the remaining power of the battery 6 is lower than the alarm value, the driver needs to be reminded to charge the battery 6 in time or replace the battery 6 with electricity. The information that the power alarm device 64 issues an alarm includes, but is not limited to, highlighting or flashing of part of the display content, sounding a whistle or voice prompt, etc.

In one embodiment, a battery charging device (not shown in the figure) is also provided in the vehicle body, and the battery 6 is placed in the battery charging device and charged.

When the remaining power of the battery 6 in the head-up display system 3 is lower than the alarm value, there may not necessarily be time to charge the battery 6. Therefore, a battery charging device can be set up in the trunk of the car or other locations. When the car is running, The battery 6 placed in the battery charging device can be charged through a generator. When the remaining power of the battery 6 in the head-up display system 3 is lower than the alarm value, the backup battery 6 that has been charged in the battery charging device can be charged in time. Taking it out and replacing it will not delay the use of the head-up display system 3 or the sub-controller 2.

In one embodiment, as shown in FIG. 4 , a wireless power receiving coil 61 is provided on the battery 6 , and the wireless power receiving coil 61 is connected to the electrodes of the battery 6 .

The wireless power receiving coil 61 can be disposed on the side of the battery 6 and connected to the electrodes of the battery 6 for wireless charging of the battery 6 . Among them, the wireless power receiving coil 61 can wirelessly charge the battery 6 based on wireless charging methods such as electromagnetic induction coupling or magnetic resonance coupling.

Electromagnetic induction coupling means that when the wireless charging coil 62 is close to the wireless power receiving coil 61 , the energy signal emitted by the wireless charging coil 62 is coupled to the wireless power receiving coil 61 in an electromagnetic induction manner and is provided to the battery 6 .

Magnetic resonance coupling means that the wireless charging coil 62 is provided with a power transmitting side resonant capacitor in series with the wireless charging coil 62 , thereby forming a power transmitting side LC resonant circuit; the wireless power receiving coil 61 is provided with a power transmitting side resonant capacitor in series with the wireless power receiving coil 61 The power receiving side resonant capacitor forms a power receiving side LC resonant circuit; and the power transmitting side LC resonant circuit and the power receiving side LC resonant circuit have the same resonant frequency. When the wireless charging coil 62 is energized, the power-transmitting side LC resonant circuit will generate a high-frequency oscillating magnetic field; the magnetic field and the electric field at any position in this high-frequency oscillating magnetic field at any time are orthogonal to each other, and are different in phase. 1/2π, and the magnetic field intensity is much higher than the electric field intensity. This space electromagnetic field can store energy, but the synthesized electromagnetic wave power flow density is zero and will not transmit any energy. That is to say, this field will not radiate outwards or Will be lost inwards. When the wireless charging coil 62 is close to the wireless power receiving coil 61, the wireless power receiving coil 61 will fall into the range of the high-frequency vibration magnetic field. Since the power-receiving side LC resonant circuit has the same resonant frequency as the power-transmitting side LC resonant circuit, the power receiving coil 61 will fall into the range of the high-frequency vibration magnetic field. The side LC resonant circuit will generate resonance with the same frequency magnetic field, so that energy is coupled from the wireless charging coil 62 to the wireless power receiving coil 61 in the form of magnetic resonance, and is provided to the battery 6 .

Although some specific embodiments of the invention have been described in detail by way of examples, those skilled in the art will understand that the above examples are for illustration only and are not intended to limit the scope of the invention. ability Those skilled in the art will understand that the above embodiments can be modified without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

A head-up display system controlled through a wireless network, which is characterized in that it includes a main controller arranged in the vehicle body and at least one sub-controller arranged in the head-up display system, and the main controller communicates with the sub-controller through a wireless network. The controller carries out data and signal transmission.
The head-up display system controlled by a wireless network according to claim 1, wherein the main controller includes a wireless transmitting unit, the sub-controller includes a wireless receiving unit, and the output end of the main controller is connected to the wireless transmitting unit. The wireless transmitting unit is connected to and sends control signals through the wireless network, and the input end of the sub-controller is connected to the wireless receiving unit and receives the control signals.
The head-up display system controlled by a wireless network according to claim 1, wherein the main controller includes a wireless receiving unit, the sub-controller includes a wireless transmitting unit, and the output end of the sub-controller is connected to the wireless transmitting unit. The wireless transmitting unit is connected to and sends status information through the wireless network, and the input end of the main controller is connected to the wireless receiving unit and receives the status information.
The head-up display system controlled through a wireless network according to claim 2, characterized in that the wireless transmitting unit further includes an encryption module, and the output terminals of the main controller and the sub-controller communicate with each other through the encryption module. The wireless transmitting unit is connected, and the encryption module encrypts the control signal or the status information; the wireless receiving unit includes a decryption module, and the input terminals of the main controller and the sub-controller pass through the decryption module. The module is connected to the wireless receiving unit, and the decryption module decrypts the received control signal or status information.
The head-up display system controlled by a wireless network according to claim 1, further comprising a battery, the battery being detachably installed inside the head-up display, and the battery being electrically connected to the sub-controller, And provide electric energy to the sub-controller.
The head-up display system controlled through a wireless network according to claim 5, characterized in that the sub-controller is equipped with a power monitoring device, the power monitoring device can monitor the remaining power of the battery, and the power monitoring device is connected to The battery is electrically connected to the sub-controller, and the remaining power information of the battery is fed back to the sub-controller.
The head-up display system controlled through a wireless network according to claim 6, characterized in that the sub-controller is equipped with a power alarm device, the power alarm device is electrically connected to the sub-controller, and the sub-controller is An alarm value for the remaining power of the battery is set. When the remaining power of the battery is lower than the alarm value, the sub-controller feeds back an alarm signal to the main controller through the wireless network.
The head-up display system controlled by wireless network according to claim 5, characterized in that: A battery charging device is also provided in the vehicle body, and the battery is placed in the battery charging device and charged.
The head-up display system controlled by a wireless network according to claim 5, wherein a wireless power receiving coil is provided on the battery, and the wireless power receiving coil is connected to an electrode of the battery.