The present disclosure relates to a communication apparatus, a communication method, a program, and a communication system that enable more reliable communication. An I3C master receives a max read length and a max write length from an I3C slave. Then, when transmitting/receiving data to/from the I3C slave, the I3C master controls transmission/reception of the data so that the data to be transferred in one data transfer has a data length equal to or shorter than the max read length and the max write length, and transmits transfer length information indicating the data length of the data to be transferred, prior to data transfer of the data. The present technology is applicable to a bus IF, for example.

A vehicle data system may include an onboard diagnostic port configured to receive a request for a threshold relating to a vehicle parameter, the threshold indicating a limit in a standard operating range of the vehicle parameter, and a processor configured to receive the request for the threshold, receive vehicle data from at least one vehicle component, and apply a filter to the vehicle data to generate a tuned threshold for the requested threshold based on an initial value and the vehicle data.

The present disclosure relates to a communication apparatus, a communication method, a program, and a communication system that enable more reliable communication.

An I3C master receives a max read length and a max write length from an I3C slave. Then, when transmitting/receiving data to/from the I3C slave, the I3C master controls transmission/reception of the data so that the data to be transferred in one data transfer has a data length equal to or shorter than the max read length and the max write length, and transmits transfer length information indicating the data length of the data to be transferred, prior to data transfer of the data. The present technology is applicable to a bus IF, for example.

Control information from a plurality of applications 1000 is written into a shared memory 101 as needed. A communication part 105 transmits the control information written in the shared memory 101 to a DHM 200 in each transmission cycle which is constant. In a management table, a plurality of allowable delay times is defined, the allowable delay time being a delay time allowable at an urgent transmission of the control information. A transmission timing notification part 106 divides a transmission cycle into time slots each of which is equal to or shorter than the shortest allowable delay time defined in the management table. The communication part 105 transmits the control information in the shared memory 101 to the DHM 200 before arrival of the transmission cycle, in a unit of time slot.

A time-division multiplex method for serial data transmission includes executing a first priority resolution for messages to be transmitted by a plurality of stations on a communications channel and which are assigned to a first prefix, and transmitting a first data frame by a first station of the multiplicity of stations, wherein the first station transmits a first message with the first prefix and with the highest priority, during a predefined first access slot. The method also includes executing a second priority resolution for messages to be transmitted on the communications channel and which are assigned to a second prefix, and then transmitting of a second data frame by a second station of the plurality of stations, where the second station transmits a second message with the second prefix and with the highest priority of the second priority resolution, during a predefined second access slot.

Disclosed herein are systems and techniques for slave-to-slave communication in a multi-node, daisy-chained network. Slave nodes may provide or receive upstream or downstream data directly to/from other slave nodes, without the need for data slots first to route through the master node.

Provided are a communication control device and a communication system capable of detecting message transmission in the case where an invalid device transmits a message to a common communication line. A monitoring device decides a reference time point t0 for periodical message transmission by an ECU, decides multiple scheduled transmission time points t1, t2, . . . obtained by adding a period corresponding to an integer multiple of a transmission cycle T of a message to the reference time point t0, and decides that a predetermined period including each of the scheduled transmission time points is a permission period for message transmission. The monitoring device determines whether or not a detected message on a CAN bus has been transmitted during the permission period. If determined that transmission of an invalid message is not permitted, the monitoring device performs processing of causing the ECU which receives the message to discard the message.

Disclosed embodiments relate, generally, to traffic shaping at a network segment having a shared bus. Some embodiments relate to performing aspects of the traffic shaping at a physical layer device. In some cases, transmit timeslot signaling may be tuned at a physical layer device to create transmit timeslots that are aligned with the traffic shaping profile.

An apparatus for configuring and validating an intervention in a real-time Ethernet data network for a motor vehicle includes: a vehicle diagnostic device, a first data storage device, a first data checking device, a second data storage device, and a second data checking device.

Techniques are disclosed to realize a self-adaptive multiresolution digital plate (SAMDP) system that facilitates sharing of vehicle state information via a dynamically generated binary two-dimensional multispectral pattern. The binary 2D multispectral pattern adjusts its resolution to adapt to the visual perception process while communicating vehicle state information without relying on wireless communications (i.e. V2V, V2X, etc.). The techniques as described herein leverage the use of a multichannel spectral means that helps lower the error present in sensing and representation models used by automated driving systems.