SHANGHAI TOSUN TECHNOLOGY LTD.

A vehicle calibration system includes a computer device. The computer device includes: a mapping system variable creating module, configured to create corresponding mapping system variables respectively for calibration signals; an assigning module, configured to assign an initial value to the mapping system variables; a calibration database, configured to store calibration signal data and define the calibration signals as an observation variable or a calibration variable or a writable observation variable; and an execution module, configured to write the corresponding calibration signal and/or read the mapping system variable.

A vehicular multi-location synergic remote calibration method and system is provided. The vehicular multi-location synergic remote calibration system includes: a server, configured to store a calibration database and receive and store a calibration signal from a responder; a requester, configured to invoke the calibration signal from the server to read a calibration signal value; and/or, send a calibration signal write command to the server and send to the server a command for reading the written calibration signal; a responder, configured to send the calibration signal to the server, and further configured to receive a written target value from the server and complete vehicular online calibration.

A graphics drawing method includes: based on physical horizontal pixels, dividing a drawing area into at least one physical pixel single-column; for each physical pixel single-column, selecting corresponding signal data points as a signal ingress point, a signal egress point, a highest point of signal value and a lowest point of signal value from all signal data points for graphics drawing in the physical pixel single-column; and, configuring the signal ingress point to be connected with a signal egress point in a previous neighboring physical pixel single-column, and configuring the highest point of signal value to be connected with the lowest point of signal value in the same physical pixel single-column.

A method of implementing a measurement data filter, including: setting an upstream data flow input port, a downstream data flow output port and a filtering function for each measurement window; connecting the upstream data flow input port of each measurement window to the downstream data flow output port of one measurement window other than the measurement window or a data source to form a hierarchical connection; receiving, by each layer of measurement window, data from an upper-layer measurement window via the upstream data flow input port of this layer of measurement window and filtering the received data and then transporting the data to a lower-layer measurement window via the downstream data flow output port of this layer of measurement window.

A system for implementing a vehicle bus virtual channel, comprising: a computer device, configured to execute client processes and a service end process; wherein, the client processes are configured to send a registration request data packet to the service end process, send a heartbeat packet to the service end process at a particular time interval, and send a vehicle bus packet to the service end process; the service end process is configured to: receive the registration request data packet, the heartbeat packet, and the vehicle bus packet from a client process, set a timestamp of the vehicle bus packet and send the vehicle bus packet back to the client process while modifying a direction attribute of the vehicle bus packet to sending; at the same time, send the vehicle bus packet to other client processes and modify the direction attribute of the vehicle bus packet to receiving.

A system for synchronously displaying measurement data includes at least one bus adapter, configured to obtain a plurality of pieces of measurement data from an Electronic Control Unit (ECU); at least one computer device, where the at least one computer device includes a processor, a display communicating with the processor to present a graphical interface, a readable storage medium, a communication bus and a communication interface; the processor, the readable storage medium and the communication interface communicate with the bus adapter via the communication bus; the readable storage medium is configured to store an instruction program; the processor is configured to, after the plurality of pieces of measurement data are obtained, execute the instruction program; the display displays, through the graphical interface, an interface in which at least one measurement data display window and/or a plurality of measurement data display windows perform synchronous display.

A time synchronization method of video information and bus packet information includes: defining a timestamp of the video information as a basic timestamp; upon starting recording, obtaining a first-frame timestamp T 0 of the video information, and aligning a first-frame timestamp of the bus packets with the first-frame timestamp T 0 of the video information and recording each frame timestamp Ty of the aligned bus packets; upon stopping recording, obtaining a tail-frame timestamp T 1 of the video information and a tail-frame timestamp T 2 of the bus packets; setting a ratio coefficient k=(T 1 −T 0 )/(T 2 −T 0 ); traversing all recorded bus packets and modifying and storing each frame timestamp Ty of these bus packets as Tx, where Tx=T 0 +(Ty−T 0 )*k; and each frame timestamp Tx of the bus packets is recorded with a clock of the video information as basis.

A software platform–specific mutual calling method for functions of third-party program libraries includes: constructing a plurality of third-party program libraries; verifying validity of the third-party program library; and mutually calling the plurality of third-party program libraries. This implements a general calling framework by using a software platform, such that a function, registered with the software platform, of the third-party program library can be shared among all loaded third-party program libraries. When a current third-party program library needs to call an additional third-party program library, there is no need to load the additional third-party program library, and the additional third-party program library can be accessed only by using a function list that contains the additional third-party program library and that is shared by the software platform for the current third-party program library.

An association system of panel controls for calibration signals, comprising: at least one bus adapter, configured to read calibration signals from a debugging device; at least one computer device, comprising a processor, a display communicating with the processor to present a panel setting interface, a readable storage medium, a communication bus, and a communication interface; wherein the processor is configured to read the calibration signals from the debugging device, and after reading the calibration signals, creating a corresponding mapping system variable for each calibration signal; selecting a mapping system variable corresponding to a calibration signal to be displayed and/or modified, and associating the selected mapping system variable with at least one panel control such that a value of the mapping system variable is displayed and/or modified on the panel control; when a calibration signal changes, changing the value of the mapping system variable corresponding to the calibration signal.