Launch Tech Co., Ltd.

South China University of Technology

Shenzhen Langheng Electronic Co., Ltd.

Zhijian Chen

Wei Zhang

Jun Liu

Bin Li

Liang Zhang

Pengfei Yu

Zhaohui Wu

Changjian Zhou

Shelin Shen

Shan Gao

Ziying Wu

Liang Cen

Jinping Mei

Guangyin Feng

Jingrui Li

Xiu Chen

Shaolin Zhou

A calibration method and a tuning method for an on-chip differential active RC filter are provided. The calibration method comprises: obtaining zero-crossing time of a differential signal outputted by a single-pole point real number filter by analyzing the single-pole point real number filter; setting a reference clock period according to the relationship between the zero-crossing time and the bandwidth of the single-pole point real number filter, and setting a calibration working time sequence according to the reference clock period; and scanning an RC configuration of an RC array according to the calibration working time sequence to realize calibration of the RC array.

Calibration method and tuning method for on-chip differential active RC filter

The disclosure provides a data communication method and apparatus, an electronic device, and a storage medium. The method includes: receiving controller area network (CAN) bus data transmitted by a first device; executing a first flow-control based transmission between the first connector and the first device to obtain respective consecutive frame data in multi-packet data from the first device, upon detecting that the CAN bus data is first frame data in the multi-packet data; and transmitting the first frame data and the respective consecutive frame data to a second connector to indicate that the second connector transmits the multi-packet data to a second device through a second flow-control based transmission, when or after executing the first flow-control based transmission between the first connector and the first device.

Data communication method and apparatus, electronic device, and storage medium

A frequency locking method for a phase-locked loop comprises the following steps: S1, a frequency control module controls a numerically controlled oscillator to obtain an maximum output frequency and a minimum output frequency; S2, obtain a minimum frequency ratio and a maximum frequency ratio by means of a time-to-digital converter and the frequency control module; S3, calculate a first frequency control word and a first frequency ratio according to the minimum frequency ratio and the maximum frequency ratio; S4, the frequency control module uses the Newton's iterative method to recalculate a new frequency control word; S5, obtain a new frequency ratio according to the new frequency control word; S6, if the new frequency ratio is within an error range, end iteration and stably output the new frequency control word, and otherwise, jump to step S4.

Frequency locking method and circuit for phase-locked loop

A method and system for remote vehicle diagnostics are provided. The method is applicable to a remote vehicle diagnostic system including a vehicle diagnostic terminal and a vehicle connector. A remote communication connection between the vehicle diagnostic terminal and the vehicle connector is established via a preset programming interface. The vehicle diagnostic terminal receives diagnostic instruction data of a diagnostic application. The vehicle diagnostic terminal transmits the diagnostic instruction data to the vehicle connector via the preset programming interface by way of the remote communication. The vehicle connector converts the diagnostic instruction data into first data in a first data format, and performs a diagnostic operation corresponding to the first data, where the first data format is readable by a vehicle.

Method and system for remote vehicle diagnostics

A method for performing vehicle remote diagnosis is provided. A diagnostic device sends a first controller area network (CAN) bus message to a device connector. The device connector encapsulates the first CAN bus message received into a first data packet and sends the first data packet to a vehicle connector through remote communication. The vehicle connector decapsulates the first data packet into the first CAN bus message and sends the first CAN bus message to a target vehicle. The vehicle connector receives second CAN bus messages and filters the second CAN bus messages to obtain a CAN bus diagnostic message, and the second CAN bus messages are sent by the target vehicle in response to the first CAN bus message. The vehicle connector encapsulates the CAN bus diagnostic message into a second data packet and sends the second data packet to the device connector.

Method for performing vehicle remote diagnosis and related devices

A device connector receives a TCP data packet of a diagnostic device in a data TCP communication manner, encapsulates the TCP data packet into a first data packet, and transmits the first data packet to the vehicle connector through remote communication. A vehicle connector converts the first data packet into a TCP diagnostics instruction data packet and transmits the TCP diagnostics instruction data packet to a vehicle. The vehicle connector receives, based on TCP communication, a TCP diagnostics response data packet, encapsulates the TCP diagnostics response data packet into a second data packet, and transmits the second data packet to the device connector through the remote communication. The device connector converts the second data packet into the TCP diagnostics response data packet and transmits the TCP diagnostics response data packet to a diagnostic device. The diagnostic device obtains a diagnostics result and presents the diagnostics result to a user.

Method for remote vehicle diagnostics and device

The present application provides a communication method for vehicle remote diagnosis, which is applied to a WEB server; the method comprises: establishing a first socket connection with the WEB front end when receiving a landing request of the WEB front end; receiving a vehicle remote diagnosis request of the WEB front end through the first socket connection and obtaining an identification of a target vehicle diagnosis equipment carried in the vehicle remote diagnosis request; establishing a second socket connection with the target vehicle diagnosis equipment according to the identification of the target vehicle diagnosis equipment; performing interaction of the vehicle diagnosis data between the WEB front end and the target vehicle diagnosis equipment through the first socket connection and the second socket connection. The application also provides a communication device and system for vehicle remote diagnosis. The application can improve the real-time capability and convenience of vehicle remote diagnosis.

Communication method, device, and system for vehicle remote diagnosis

Bicycle lamp

Growing community of inventors

Guangdong, China

Zhijian Chen