Compression algorithms for vehicle-bus-messaging of preview data

• Main Authors: D'AMATO ANTHONY MARIO, JON THOMAS MULLEN
• Format: Patent
• Language: Chinese; English
• Published: 28.12.2016
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

Disclosures teach providing data over a vehicle bus, data providing values for a road attribute indexed to points anticipated to be traversed by a vehicle. To compress the data, a server may fit a regression function to the data with coefficients applied to kernels in the function. The server may limit the number of coefficients to reflect a limitation on rate of change imposed on data by the road on which it reports. Similarly, the server may limit one or more numbers of bits encoding the coefficients in a message transmitted on the vehicle bus, reflective of a limited range of potential amplitudes for data imposed by the road. A client may maintain a copy of the kernels and retrieve the coefficients from the message. The client may estimate future values of the road attribute by evaluating the coefficients applied to the kernels, which may, in some examples, be Gaussian. 本发明教导了通过车辆总线提供数据，该数据提供被索引到车辆预期穿过的点的道路属性的值。为了压缩数据，服务器可以采用被应用到函数的核函数的系数对数据拟合回归函数。该服务器可以限制系数的数量以反映由它报告的道路决定的数据对变化率的限制。类似地，该服务器可以限制在车辆总线上传送的消息