摘要：【中文】一种基于大客户预测的汽车销售系统，包括前台和后台模块，其特征在于：通过对历史数据的分析，得出大客户的最小特征子集，建立知识库。对于新的注册用户通过填表方式获取新客户的特征和知识库对比，判断新客户是否是潜在购买需求较大的大客户。 【EN】The utility model provides a car sales system based on big customer prediction, includes proscenium and backstage module, its characterized in that: and analyzing the historical data to obtain the minimum characteristic subset of the large client, and establishing a knowledge base. And for the new registered user, the characteristics of the new customer are obtained in a form filling mode and compared with the knowledge base, and whether the new customer is a large customer with high potential purchase demand or not is judged.

摘要：【中文】本发明公开一种耳机接口复用电路、连接器和显示器，显示器具有声音信号输出端及视频信号输入端，耳机接口复用电路包括信号输入接口、耳机通讯电路和视频通讯电路，信号输入接口供耳机插入连接或者供视频信号接口连接，以对应输出音频信号或者接入视频信号。耳机通讯电路在接收到耳机脚开启信号时，将信号输入接口与声音信号输出端导通。视频通讯电路接收到视频脚开启信号时，将信号输入接口与视频信号接口导通。本发明用于解决显示器的视频传输接口通用性较低的技术问题。 【EN】The invention discloses an earphone interface multiplexing circuit, a connector and a display, wherein the display is provided with a sound signal output end and a video signal input end, the earphone interface multiplexing circuit comprises a signal input interface, an earphone communication circuit and a video communication circuit, and the signal input interface is used for inserting and connecting an earphone or a video signal interface so as to correspondingly output an audio signal or access a video signal. When receiving the opening signal of the earphone pin, the earphone communication circuit conducts the signal input interface and the sound signal output end. And when the video communication circuit receives the video pin starting signal, the signal input interface is conducted with the video signal interface. The invention is used for solving the technical problem of low universality of the video transmission interface of the display.

摘要：【中文】本发明提供一种柴油机控制系统、控制方法及控制器，系统包括柴油机、异步电机、整流器、充电装置和控制器，柴油机分别与异步电机、控制器连接，整流器分别与异步电机、充电装置、控制器连接，控制器用于根据柴油机的当前转速，控制充电装置的通断。在当前转速低于第一预设转速时，控制充电装置为整流器的支撑电容充电，在支撑电容的电压值满足预设条件时，控制整流器为异步电机提供三相交流电，以使异步电机工作在电动机工况下，带动柴油机工作。上述柴油机控制系统采用异步电机，不需要专门的启动马达来带动柴油机工作，通过控制器实现对柴油机工作状态的监控，不仅节省了空间，而且实现了系统的自动控制。 【EN】The invention provides a diesel engine control system, a control method and a controller, wherein the system comprises a diesel engine, an asynchronous motor, a rectifier, a charging device and a controller, the diesel engine is respectively connected with the asynchronous motor and the controller, the rectifier is respectively connected with the asynchronous motor, the charging device and the controller, and the controller is used for controlling the on-off of the charging device according to the current rotating speed of the diesel engine. When the current rotating speed is lower than a first preset rotating speed, the charging device is controlled to charge the support capacitor of the rectifier, and when the voltage value of the support capacitor meets a preset condition, the rectifier is controlled to provide three-phase alternating current for the asynchronous motor, so that the asynchronous motor works under the working condition of the motor to drive the diesel engine to work. The diesel engine control system adopts the asynchronous motor, does not need a special starting motor to drive the diesel engine to work, realizes the monitoring of the working state of the diesel engine through the controller, not only saves the space, but also realizes the automatic control of the system.