Fleet Vehicle Route Mapping With Selective Data Requests

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Solution Overview

Problem

Existing methods for mapping traveled roads using vehicle sensors result in high data transmission costs due to the continuous transmission of sensor data from multiple vehicles, even when sufficient data already exist for a particular area.

Innovation Solution

A central mapping server with decision-making logic determines which vehicles transmit sensor data only when necessary, based on the availability of mapping data and specific criteria such as sensor types, weather, and cost considerations, allowing for targeted data transmission and reduction of unnecessary data exchange.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If all fleet vehicles continuously transmit sensor data to the mapping server, then comprehensive mapping coverage is achieved, but data transmission costs and data volume increase significantly

Engineering Contradiction:
Improvemapping data completenessVSAvoiddata transmission volume
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The mapping server proactively sends requests to fleet vehicles before they enter mapping zones, pre-coordinating data transmission needs. This preliminary action allows the system to prepare for upcoming mapping requirements and avoid unnecessary continuous transmission, reducing overall data volume while ensuring completeness.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements a feedback mechanism where the mapping server evaluates received mapping data and determines whether additional data are needed. Based on this evaluation, the server sends targeted requests to specific vehicles for specific zones, creating a closed-loop system that transmits only necessary data while maintaining comprehensive coverage.

Inventive Principle:
Principle #23Feedback

2Productivity

If multiple fleet vehicles map the same territory simultaneously, then mapping speed increases, but data transmission costs do not decrease proportionally

Engineering Contradiction:
Improvemapping speedVSAvoiddata transmission volume
Core Design Contradiction:
ProductivityVSQuantity of substance

Solution Approach 1:

The system extracts and transmits only the specific mapping data that are actually needed for uncovered or insufficiently mapped zones, rather than having all vehicles transmit all their sensor data. This selective extraction approach maintains fast mapping throughput while dramatically reducing redundant data transmission.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system employs partial action by having vehicles transmit data for only those specific zones where coverage is needed, rather than continuous full-area transmission. The server selectively requests data from vehicles based on their location and the current mapping status, optimizing the balance between mapping speed and data transmission efficiency.

Inventive Principle:
Principle #16Partial or excessive action

3Reliability

If fleet vehicles transmit mapping data continuously, then up-to-date maps are maintained, but unnecessary data transmission occurs when sufficient data already exist

Engineering Contradiction:
Improvemap currencyVSAvoiddata transmission cost
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The mapping server continuously evaluates the sufficiency of received mapping data and provides feedback through selective requests. When sufficient data exist for a zone, the server does not request additional transmissions. This feedback-driven approach maintains up-to-date maps while eliminating wasteful continuous transmission from all vehicles.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system enables self-service by allowing the mapping server to autonomously determine which data are needed and request them from appropriate vehicles. This eliminates the need for continuous blind transmission from all vehicles, as the server intelligently manages data collection based on current mapping status and requirements.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS11454504B2Method for mapping a route section
Publication Date: 2022.09.27 ROBERT BOSCH GMBH
  • US11454504B2 patent drawing

AI summary

A method for mapping a route section. The method includes providing a central mapping server equipped with a server-side communication interface; providing at least one fleet vehicle of a vehicle fleet equipped with at least one sensor which is suitable for detecting mapping data, and with a vehicle-side communication interface, the server-side communication interface and the vehicle-side communication interface being configured to exchange data; making a mapping decision by decision-making logic implemented on the mapping server, and transmitting an individual mapping request which is based on the mapping decision to the at least one fleet vehicle, it being possible for the mapping request to include different pieces of information for individual fleet vehicles; and transmitting mapping data from the at least one fleet vehicle to the mapping server as a function of the individual mapping request and the use of the mapping data during the mapping of the route section.