Abstract:
A method and system for conducting a vehicle service comprises the steps of receiving signals representative of vehicle parameters, accessing data and/or software necessary for performing the vehicle service from at least one remote computer over a data transmission network, and performing signal processing related to the vehicle service based on the signals representative of the vehicle parameters and the accessed data and/or software. Since the data and/or software necessary for conducting the vehicle diagnostic analysis is distributed in different systems that are connected via a data communication network, an automotive service system can minimize the size of software stored locally and can access most of the information and/or algorithm required for conducting the vehicle diagnostic analysis from a remote system.
Abstract:
First and second networks, for example Controller Area Networks (CANs), of different physical layers are interfaced by applying signals of the busses of the two networks to respective transceivers. A dominant state of one of the busses is sensed and data is transferred between the two transceivers in a direction from the dominant bus. The two busses are interfaced by a logic circuit interposed between the transceivers. A control circuit is coupled to the first and second logic units for mutually exclusively activating and deactivating the first and second logic units to control the direction of data transfer between the busses.
Abstract:
A wireless interface for a diagnostic instrument is provided. The diagnostic instrument includes a communications interface having an external data port. A wireless adapter coupled to the external data port communicates diagnostic data with one or more computing devices. In a single user mode, a computing device can control several diagnostic instruments wirelessly. In broadcast mode, a diagnostic instrument can send a data stream wirelessly to many listening computing devices. Further features, such as safety warning messages, are provided.
Abstract:
A vehicle diagnostic display unit including a case, a display screen disposed within a front portion of the case, and a main support coupled to a side of the case and having a finger compartment for receiving a user's fingers to allow the user to lift the vehicle diagnostic display unit using one hand. A navigation pad is disposed on a front surface of the main support and the main support is configured to allow a user to simultaneously lift the diagnostic display unit and access the navigation pad with a thumb. The unit also includes a fingerprint identification system including a scanner for scanning an image of a fingerprint of the user. The scanner is fitted on the navigation pad so that the user's thumb naturally rests on the fingerprint scanner when the user lifts the diagnostic display unit and accesses the navigation pad with the thumb.
Abstract:
An integrated battery service system performs a plurality of services related to a battery, such as battery testing, battery charging, and the like. In addition, the integrated service system provides services to devices/components that are coupled to the battery, such as starters, alternators, etc. The integrated battery service system allows a user to abort a service and then resume the process from where the process was aborted. When conducting a service, the integrated battery service system determines a noise level caused by devices/components coupled to the battery. The integrated battery service system includes connectors configured to couple to a battery for receiving input signals, a processor coupled to the connectors, and a memory device coupled to the processor for storing control codes and operation history. The control codes, when executed by the processor, control the system to selectively abort a service in response to a user input. Since the memory stores operation histories, the processor may access the memory to retrieve data related to the aborted service and parameters obtained during the service before the process was aborted. The system reinstates the aborted service in response to another user input.
Abstract:
Engine cylinder contribution analysis is provided. An engine cylinder contribution tester includes a displacement measurement device and a signal analyzer. The displacement measurement device detects engine block movements or displacement relative to a fixed position caused by a poorly contributing cylinder. The displacement measurement device provides a displacement signal to the signal analyzer. The signal analyzer includes a cylinder contribution module for evaluating the displacement signal. If a particular cylinder is contributing less than the average of the other cylinders, the displacement signal indicates engine block movement associated with a lack of contribution from that cylinder.
Abstract:
A three-dimensional camera based system for determining the position and/or alignment of objects such as motor vehicle wheels. The system includes a strobed infrared lighting subsystem, a visible indicator that the subsystem is working properly, and targets for attachment to the objects. The system also includes at least one camera for viewing the targets, and a data processor connected to the camera for processing data relating to images of the targets to determine position and/or alignment information, and a display that displays the position and/or alignment information. The system includes directional indicators for indicating that the vehicle should be repositioned by moving it backward, forward, or steered left or right. The system also includes wheel indicators tied in with software on the data processing device. These wheel indicators indicate the state of target acquisition by the data processing device based on the image from the camera.
Abstract:
A portal for transferring information between a master server and a third-party client using a transportable replicating server is provided. The portal may be particularly useful for and may provide a significant cost advantage and benefit when access to front and back-office servers is limited or not accessible. The master server may replicate information (e.g., applications and data) from the front and back-office servers to the replicating server. After replication, the replicating server appears to third-party clients as the front and back-office servers, containing the functionality and data to facilitate front and back-office operations. Being transportable, the replicating server can move from a first location at which the replicating server can communicate with the master server to a second location at which the replicating server can communicate with the third-party clients. At the second location, the information on the replicating server may be communicated to the third-party devices.
Abstract:
An apparatus and method for calibrating machine vision measuring systems that have more than one camera are disclosed. A first calibration target is mounted in a fixed relationship to a first camera of the machine vision measuring system. A third camera mounted in a fixed relationship to a second camera of the machine vision measuring system. Second and third calibration targets are mounted in a fixed relationship to one another and viewable by the first camera and by the third camera. A data processor is programmed to compute calibration of the first camera and the second camera, based on a position of the second calibration target relative to the third calibration target and based on a position of the first camera with respect to the third camera. The apparatus and method provide a way to continuously measure the positions of two or more cameras used in the measuring system, and to use such measurements to calibrate the system. If the cameras move with respect to each other, their respective positions are calculated and used in subsequent measurements. The apparatus and method enable a machine vision measuring system to be used without field calibration at the time of installation.
Abstract:
To determine a ride height dimension of a vehicle involves determining a set of spherical co-ordinates in three-dimensional space, for two points related to the vehicle, with respect to a datum point. The vehicle manufacturer designates a reference point and a point related to the vehicle body as the two points that correspond to the ride height specified for the measured ride height dimension. Determining the actual ride height dimension of the vehicle entails computing the dimension from the measured spherical co-ordinates of the two points, for example, as a distance between the points or as a difference in vertical height of the points. Examples of equipment include sensor modules for taking measurements of the co-ordinates of the points and processors for determining the desired ride height dimension from measurements taken by a sensor module.