技术领域technical field
本发明属于车载信息技术，尤其涉及一种车载抬头显示系统及其显示方法。The invention belongs to vehicle-mounted information technology, and in particular relates to a vehicle-mounted head-up display system and a display method thereof.
背景技术Background technique
目前，车用仪表已从机械式仪表发展到了电子化仪表，但是驾驶员查看仪表信息过程中仍需要低头并把眼睛焦点从远处调节到仪表盘上，看完仪表信息后再抬头并把眼睛焦点从仪表盘上调节到前方道路上，从而产生驾驶盲区时间，这段盲区时间驾驶员的注意力不在前方道路上，很容易引发交通事故。抬头显示系统可以将汽车的一些重要信息投影显示到前挡风玻璃上，实现在驾驶员视觉合理范围内显示汽车速度等信息，减小驾驶员视线移开驾驶方向的时间，驾驶员不需要低头查看仪表，从而缩短驾驶员对前方视野的盲区时间。因此抬头显示器系统对减少因低头查看仪表盘而增加视觉盲区时间所引起的道路交通事故有着重要的贡献。目前已经有部分车型配备了抬头显示系统，但是一般的抬头显示系统主要以显示车速、发动机转速等实时行车信息为主，显示功能较为单一。另一方面，现有的抬头显示系统的显示内容布满整个显示区域，并没有根据信息的重要性及特点进行分类显示和分区域显示，需要驾驶员自己去分辨所需要看的信息，这样不仅影响驾驶员视线，也容易造成驾驶员视觉疲劳。随着人们对舒适性及安全性的提高，抬头显示系统要显示的信息会更多，如果不进行分类、分区域显示，则不仅不能改善驾驶信息的识认性，反而会影响驾驶员驾驶。At present, vehicle instrumentation has developed from mechanical instrumentation to electronic instrumentation, but the driver still needs to lower his head and adjust the focus of his eyes to the instrument panel from a distance when viewing the instrument information, and then look up and turn his eyes The focus is adjusted from the instrument panel to the road ahead, thereby creating a driving blind zone time. During this blind zone time, the driver's attention is not on the road ahead, which is likely to cause traffic accidents. The head-up display system can project and display some important information of the car on the front windshield, realize the display of car speed and other information within the reasonable range of the driver's vision, reduce the time for the driver to look away from the driving direction, and the driver does not need to look down Look at the gauges to reduce the driver's blind spot time for forward vision. Therefore, the head-up display system has an important contribution to reducing road traffic accidents caused by looking down at the instrument panel and increasing the visual blind zone time. At present, some models are equipped with a head-up display system, but the general head-up display system mainly displays real-time driving information such as vehicle speed and engine speed, and the display function is relatively simple. On the other hand, the display content of the existing head-up display system covers the entire display area, and does not classify and display the information according to the importance and characteristics of the information. It requires the driver to distinguish the information he needs to see. Affect the driver's line of sight, and also easily cause the driver's visual fatigue. With the improvement of people's comfort and safety, the head-up display system will display more information. If it is not classified and displayed in different areas, it will not only fail to improve the visibility of driving information, but will affect the driver's driving.
发明内容Contents of the invention
本发明要解决的技术问题：提供一种车载抬头显示系统及其显示方法，以解决现有的车载抬头显示系统显示信息单一，显示内容布满整个显示区域，并没有根据信息的重要性及特点进行分类显示和分区域显示，需要驾驶员自己去分辨所需要看的信息，影响驾驶员视线，容易造成驾驶员视觉疲劳等问题。The technical problem to be solved by the present invention is to provide a vehicle-mounted head-up display system and its display method, so as to solve the problem that the existing vehicle-mounted head-up display system displays a single display information, the display content covers the entire display area, and there is no information based on the importance and characteristics of the information. Classified display and sub-area display require the driver to distinguish the information he needs to see, which will affect the driver's sight and easily cause the driver's visual fatigue and other problems.
本发明技术方案：Technical scheme of the present invention:
一种车载抬头显示系统，它包括汽车CAN总线，汽车CAN总线包括高速CAN总线和低速CAN总线，高速收发器与高速CAN总线连接，低速收发器与低速CAN总线连接，高速收发器和低速收发器分别与信息采集模块导线连接，信息采集模块与控制器导线连接，车载雷达信息输出端与控制器导线连接，控制器输出端与语音模块和液晶显示器导线连接。A vehicle-mounted head-up display system, which includes an automotive CAN bus, the automotive CAN bus includes a high-speed CAN bus and a low-speed CAN bus, a high-speed transceiver is connected to the high-speed CAN bus, a low-speed transceiver is connected to the low-speed CAN bus, the high-speed transceiver and the low-speed transceiver They are respectively connected to the wires of the information collection module, the information collection module is connected to the wires of the controller, the output end of the vehicle radar information is connected to the wires of the controller, and the output end of the controller is connected to the wires of the voice module and the liquid crystal display.
高速收发器为MC33989模块，低速收发器为MC33388模块。The high-speed transceiver is the MC33989 module, and the low-speed transceiver is the MC33388 module.
控制器为MC9S12XS128模块。The controller is the MC9S12XS128 module.
车内安装有光敏元件，光敏元件的信号输出端与控制器导线连接。A photosensitive element is installed in the car, and the signal output end of the photosensitive element is connected with the controller wire.
汽车挡风玻璃左侧显示区域用来显示导航信息、倒车影像以及汽车行驶信息和故障信息，该区域位于驾驶员视线的正前方。The display area on the left side of the car windshield is used to display navigation information, reversing images, vehicle driving information and fault information. This area is located directly in front of the driver's line of sight.
汽车挡风玻璃右侧显示区域显示车速、实时油耗、冷却液温度和发动机转速。The display area on the right side of the car windshield displays vehicle speed, real-time fuel consumption, coolant temperature and engine speed.
本发明的有益效果：Beneficial effects of the present invention:
本发明通过集成高低速收发器实时采集汽车高速CAN总线和低速CAN总线上的实时数据信息，通过数据采集模块送至控制器，由控制器驱动液晶显示器显示出来投影在汽车前挡风玻璃上供驾驶员实时查看，本发明所显示的信息通过分区显示，分为左右侧显示区域，通过采集CAN总线上的信息，使信息收集种类齐全，解决了现有车载抬头显示系统的信息单一问题，通过对不同类型的信息进行分类显示或提示，并采用分区显示的方法，将该装置放于驾驶员正前方偏右的位置，在行驶过程中，右侧区域的显示内容基本上位于行驶车道的右侧车道上，对驾驶员所在车道正前方路况信息的干扰很小，从而能提高驾驶员对信息的识认性，提高驾驶安全，本发明解决了现有的车载抬头显示系统显示信息单一，显示内容布满整个显示区域，并没有根据信息的重要性及特点进行分类显示和分区域显示，需要驾驶员自己去分辨所需要看的信息，影响驾驶员视线，容易造成驾驶员视觉疲劳等问题。The present invention collects the real-time data information on the high-speed CAN bus and the low-speed CAN bus of the automobile in real time by integrating high and low-speed transceivers, sends them to the controller through the data acquisition module, and displays them on the front windshield of the automobile by the controller to drive the liquid crystal display to display them. The driver checks in real time, and the displayed information of the present invention is divided into left and right side display areas through partition display. By collecting the information on the CAN bus, the information collection is complete, and the single information problem of the existing vehicle-mounted head-up display system is solved. Different types of information are classified and displayed or prompted, and the method of partition display is adopted. The device is placed on the right side of the driver's front. During the driving process, the display content on the right side is basically located on the right On the side lane, there is little interference with the road condition information directly in front of the driver's lane, thereby improving the driver's recognition of information and improving driving safety. The present invention solves the problem that the existing vehicle-mounted head-up display system displays single The content covers the entire display area, and does not classify and display the information according to the importance and characteristics of the information. It requires the driver to distinguish the information he needs to see, which affects the driver's sight and easily causes problems such as driver visual fatigue.
附图说明：Description of drawings:
图1为本发明器件结构示意图；Fig. 1 is the schematic diagram of device structure of the present invention;
图2为本发明显示原理示意图；Fig. 2 is a schematic diagram showing the principle of the present invention;
图3为本发明信息显示示意图。Fig. 3 is a schematic diagram of information display in the present invention.
具体实施方式：Detailed ways:
一种车载抬头显示系统，它包括汽车CAN总线，汽车CAN总线包括高速CAN总线和低速CAN总线，高速收发器与高速CAN总线连接，低速收发器与低速CAN总线连接，高速收发器和低速收发器分别与信息采集模块导线连接，信息采集模块与控制器导线连接，车载雷达信息输出端与控制器导线连接，控制器输出端与语音模块和液晶显示器导线连接。A vehicle-mounted head-up display system, which includes an automotive CAN bus, the automotive CAN bus includes a high-speed CAN bus and a low-speed CAN bus, a high-speed transceiver is connected to the high-speed CAN bus, a low-speed transceiver is connected to the low-speed CAN bus, the high-speed transceiver and the low-speed transceiver They are respectively connected to the wires of the information collection module, the information collection module is connected to the wires of the controller, the output end of the vehicle radar information is connected to the wires of the controller, and the output end of the controller is connected to the wires of the voice module and the liquid crystal display.
在汽车CAN总线中，一般位传输速率为125kb/s~1Mb/s称为高速CAN总线，位传输速率低于125kb/s的称为低速CAN总线。In the automotive CAN bus, the general bit transmission rate of 125kb/s~1Mb/s is called the high-speed CAN bus, and the bit transmission rate lower than 125kb/s is called the low-speed CAN bus.
高速收发器为MC33989模块，低速收发器为MC33388模块。The high-speed transceiver is the MC33989 module, and the low-speed transceiver is the MC33388 module.
控制器为MC9S12XS128模块。The controller is the MC9S12XS128 module.
车内安装有光敏元件，光敏元件的信号输出端与控制器导线连接，光敏元件用来采集外界光线，通过控制器的控制实现液晶显示器光亮度的自动调节以提高清晰度。A photosensitive element is installed in the car, and the signal output end of the photosensitive element is connected with the controller wire. The photosensitive element is used to collect external light, and the automatic adjustment of the brightness of the liquid crystal display is realized through the control of the controller to improve clarity.
汽车挡风玻璃左侧显示区域用来显示导航信息、倒车影像以及汽车行驶信息和故障信息，该区域位于驾驶员视线的正前方。The display area on the left side of the car windshield is used to display navigation information, reversing images, vehicle driving information and fault information. This area is located directly in front of the driver's line of sight.
汽车挡风玻璃右侧显示区域显示车速、实时油耗、冷却液温度和发动机转速。The display area on the right side of the car windshield displays vehicle speed, real-time fuel consumption, coolant temperature and engine speed.
图3中，虚线左侧显示区域10用来显示导航信息、倒车影像以及其他汽车行驶信息或故障信息。该区域位于驾驶员视线的正前方。In FIG. 3 , the display area 10 on the left side of the dotted line is used to display navigation information, reversing images, and other vehicle driving information or fault information. This area is located directly in front of the driver's line of sight.
图3中，虚线右侧显示区域显示实时油耗6、车速8在行驶过程中一直显示。冷却液温度7在60℃以下时为绿色，90℃以上时为红色，60至90℃为渐变色显示。发动机转速9在3000r/min以下时为绿色显示，5000r/min至7000r/min为红色显示，3000至5000r/min为渐变色显示。In Figure 3, the display area on the right side of the dotted line shows real-time fuel consumption 6 and vehicle speed 8 are always displayed during driving. When the coolant temperature 7 is below 60°C, it is green, when it is above 90°C, it is red, and from 60 to 90°C is displayed in a gradient color. When the engine speed 9 is below 3000r/min, it is displayed in green, from 5000r/min to 7000r/min is displayed in red, and from 3000 to 5000r/min is displayed in gradient colors.
图2为显示原理示意图，1为驾驶员看到的投影像，2为前挡风玻璃上的半透明反射膜，3本发明的集成装置，4为前挡风玻璃，集成装置中的高速收发器与汽车自身的高速CAN总线连接，低速收发器与汽车自身低速CAN总线连接，CAN总线中的各种信息都有独立的ID编码，本发明的装置提取所需信息的ID号即可得到所带有的信息，然后送至控制器转换为液晶显示器能够显示的信息。本发明液晶显示器显示的是倒像，半透明反射膜类似于平面反光镜的原理，将图像投影在挡风玻璃上，供驾驶员查看。Fig. 2 is a schematic diagram of the display principle, 1 is the projected image seen by the driver, 2 is the translucent reflective film on the front windshield, 3 is the integrated device of the present invention, 4 is the front windshield, and the high-speed transceiver in the integrated device Transceiver is connected with the high-speed CAN bus of the car itself, and the low-speed transceiver is connected with the low-speed CAN bus of the car itself. Various information in the CAN bus has independent ID codes. The device of the present invention can extract the ID number of the required information to obtain all information. The information with it is then sent to the controller to be converted into information that can be displayed on the liquid crystal display. What the liquid crystal display of the present invention shows is an inverted image, and the translucent reflective film is similar to the principle of a plane mirror, and the image is projected on the windshield for the driver to check.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410339222.6ACN104071076A (en) | 2014-07-17 | 2014-07-17 | Vehicle-mounted head-up display system and display method thereof |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410339222.6ACN104071076A (en) | 2014-07-17 | 2014-07-17 | Vehicle-mounted head-up display system and display method thereof |
| Publication Number | Publication Date |
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| CN104071076Atrue CN104071076A (en) | 2014-10-01 |
| Application Number | Title | Priority Date | Filing Date |
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| CN201410339222.6APendingCN104071076A (en) | 2014-07-17 | 2014-07-17 | Vehicle-mounted head-up display system and display method thereof |
| Country | Link |
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| CN (1) | CN104071076A (en) |
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| C06 | Publication | ||
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