Map data transmission method and device
A data transmission method and a technology of a transmission device, which are applied in the field of map data transmission methods and devices, and can solve problems such as inability to correctly reflect confidence levels, wrong judgments about the existence of cloud targets, and high dependence on the correctness of prior assumptions
Active Publication Date: 2022-04-15
HUAWEI TECH CO LTD
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[0005]
However, the disadvantages of Bayesian decision-making in the above techniques include:
figure 1
As shown, the dependence of the correctness of the prior assumption is too high. When the prior assumption is correct, the confidence curve does not exceed the credible upper limit, and the confidence curve is credible
However, when the prior assumption is incorrect, the confidence curve exceeds the credible upper limit, and the confidence curve cannot correctly reflect the relationship between the confidence degree and the error rate, that is, the confidence estimation may be invalid. The judgment of whether the target exists produces an error
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[0087] Hereinafter, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of this embodiment, unless otherwise specified, "plurality" means two or more.
[0088] Meanwhile, in the embodiments of the present application, words such as "exemplary" or "for example" are used as examples, illustrations or illustrations. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application shall not be interpreted as being more preferred or more advantageous than other embodiments or design schemes. To be precise, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete manner for easy understandin...
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The invention provides a data transmission method, and the method comprises the steps: determining at least one prior probability of a map element corresponding to target information, the target information being information about a target detected when a vehicle senses a surrounding environment, the prior probability being a probability that the target exists under a first condition, and the prior probability being a probability that the target exists under a second condition; each prior probability in the at least one prior probability corresponds to one first condition; and sending the target information, the at least one prior probability and a first condition corresponding to each prior probability.
Description
technical field [0001] The present application relates to the technical field of data transmission, in particular to a method and device for transmitting map data. Background technique [0002] Self-driving cars rely on the synergy of technologies such as artificial intelligence, visual computing, radar, positioning systems, and high-precision maps, allowing computers to automatically and safely operate motor vehicles without any active human operation. High-precision maps are used as a tool for car navigation. Its accuracy, precision, and update efficiency are crucial to the safety of self-driving cars. For example, when roads are closed, routes change, or traffic signs change, maps need to be updated. [0003] At present, crowdsourcing, as a low-cost data collection mode, has been widely adopted in recent years. Crowdsourcing is to complete a certain task based on the power of the public, for example, to complete the collection of map data based on a large number of public...
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IPC IPC(8): H04L67/02H04L67/10G06F16/29G06F17/18
CPCH04L67/10G06F17/18G06F16/29H04L67/02
Inventor 伍勇刘建琴
Owner HUAWEI TECH CO LTD