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Wireless HART standard-based in-vehicle wireless interaction method

An interactive method and wireless technology, applied in the direction of wireless communication, data exchange network, security devices, etc., can solve problems such as inability to install, and achieve the effect of reducing costs, reducing time required, and quickly networking

Active Publication Date: 2016-08-10
TONGJI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the patent allocates the CAN bus and the LIN bus reasonably to maximize the advantages of the two, the position of the wiring harness still needs to be considered during installation, and there are some corners in the car that cannot be installed.

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  • Wireless HART standard-based in-vehicle wireless interaction method
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Embodiment Construction

[0048] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0049] Such as figure 1 and figure 2 As shown, an in-vehicle wireless interaction method based on the WirelessHART standard is used for the connection of in-vehicle devices. The vehicle controls the wired network 4 and connects to the access point 2. The wireless node 3 is set in a moving or inaccessible part in the vehicle. There are at least two access points 2. The wireless node 3 and the access point 2 are networked to form a mesh For the wireless vehicular network, two access points 2 are used in this embodiment to ensure redundancy. If one access point 2 fails, the entire net...

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Abstract

The invention relates to a Wireless HART standard-based in-vehicle wireless interaction method, and aims to establish a wireless vehicle-mounted network. The vehicle-mounted network comprises a gateway, access points and a plurality of wireless nodes, wherein the gateway accesses to a vehicle control wired network, and is connected to the access points; and the wireless nodes and the access points form the mesh wireless vehicle-mounted network. The method comprises: a network access and networking stage, a communication stage and a network searching stage. Compared with the prior art, in the method provided by the invention, through the network access and networking stage, the automatic fast networking is realized, through the communication stage, safe data transmission is realized based on a redundant path, and through the network searching stage, low power consumption operation is realized; and the wireless vehicle-mounted network can replace a communication cable, and a purpose of reduction of the wiring harness weight is realized by use of various equipment which are connected with a vehicle through a wireless technology.

Description

technical field [0001] The present invention relates to the technical field of vehicle Internet of Things communication, in particular to a wireless interaction method in a vehicle based on the WirelessHART standard. Background technique [0002] With the popularization of automobile electrification and informatization, the interior wiring harness is considered as the central nervous system of a vehicle, which connects the on-board computer with various related functions on the vehicle. But the problem that comes with it is that the weight of the car wiring harness accounts for about 1 to 2% of the car's weight. According to statistics, the wiring harness usage of a high-end car has reached 2km, and the weight is 20-30kg. Every time the car travels 100km, the 25kg wiring harness consumes about 50W of energy, which is equivalent to burning 0.1kg of fuel. Studies have shown that if the weight of the vehicle is reduced by 10%, the fuel consumption can be reduced by 8%. For ev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L29/06H04W12/02H04W48/10
CPCH04L41/0663H04L63/0428H04W12/02H04W48/10Y02D30/70
Inventor 蒋昌俊陈德基闫春钢章昭辉叶晨王成喻剑毕卓孙路
Owner TONGJI UNIV
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