CN-122017411-A - Signal acquisition system, signal processing method and vehicle

CN122017411ACN 122017411 ACN122017411 ACN 122017411ACN-122017411-A

Abstract

The application discloses a signal acquisition system, a signal processing method and a vehicle, and belongs to the technical field of vehicle charging. The system comprises a signal splitting module, a first sampling module and a second sampling module, wherein the signal splitting module is used for receiving a control guide signal input by an input interface of the signal acquisition system and splitting the control guide signal into a first type signal and a second type signal, the first sampling module is connected with the signal splitting module and used for sampling the first type signal to obtain a first sampling result, and the second sampling module is connected with the signal splitting module and used for sampling the second type signal to obtain a second sampling result. The signal acquisition system can realize the shunt acquisition of the control guide signal through a single input interface, and has small occupation of hardware resources and low application cost.

Inventors

PAN HUA
WU KUAN
CHEN CHANG
WU BAILIN
XU YEXIN

Assignees

比亚迪股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260202

Claims (10)

1. A signal acquisition system, comprising: The signal splitting module is connected with an input interface of the signal acquisition system and is used for splitting the control guide signal into a first type signal and a second type signal; The first sampling module is connected with the signal splitting module and is used for sampling the first type of signals to obtain a first sampling result; The second sampling module is connected with the signal splitting module and is used for sampling the second type of signals to obtain a second sampling result.
2. The signal acquisition system of claim 1, wherein the signal splitting module comprises: The first splitting submodule is connected with the first sampling module, and is used for obtaining the first type signal based on the control guide signal and outputting the first type signal to the first sampling module; the second splitting submodule is connected with the second sampling module, and is used for obtaining the second type signal based on the control guide signal and outputting the second type signal to the second sampling module.
3. The signal acquisition system of claim 2, wherein the first type of signal is a pulse modulated signal; the first split sub-module includes: the first shaping circuit is used for shaping the control guide signal to obtain a first shaped signal; And the operational amplifier is connected with the first shaping circuit and is used for operating the first shaping signal to obtain the first type signal.
4. The signal acquisition system of claim 2, wherein the second type of signal is an analog voltage signal; the second split sub-module includes: the second shaping circuit is used for shaping the control guide signal to obtain a second shaped signal; And the resistance-capacitance circuit is connected with the second shaping circuit and is used for operating the second shaping signal to obtain the second type signal.
5. The signal acquisition system of any one of claims 1-4, further comprising: and the processing module is connected with the first sampling module and the second sampling module and is used for receiving the first sampling result and/or the second sampling result.
6. The signal acquisition system of claim 5, further comprising: the data synchronization module is connected with the first sampling module and the second sampling module, and is also connected with the processing module; the data synchronization module is used for receiving the first sampling result and the second sampling result, and performing synchronization processing on the first sampling result and the second sampling result to obtain a fusion sampling result; The processing module is also used for receiving the fusion sampling result.
7. The signal acquisition system according to any one of claims 1-4, wherein the first sampling module is connected to the input interface of the signal acquisition system, and is configured to receive the control pilot signal and sample the control pilot signal to obtain the first sampling result; The second sampling module is connected with the input interface of the signal acquisition system, and is used for receiving the control guide signal and sampling the control guide signal to obtain a second sampling result.
8. The signal acquisition system of any one of claims 1-4, further comprising: The IO module is connected with the input interface, the first sampling module, the second sampling module and the signal splitting module, and is used for receiving the control guide signal input by the input interface and outputting the control guide signal to at least one of the first sampling module, the second sampling module and the signal splitting module.
9. The signal processing method is characterized in that the method is used for a signal acquisition system, the signal acquisition system comprises a signal splitting module, a first sampling module and a second sampling module, the signal splitting module is connected with an input interface of the signal acquisition system, the first sampling module is connected with the signal splitting module, and the second sampling module is connected with the signal splitting module; the method comprises the following steps: acquiring a control guide signal and an acquisition mode of the signal acquisition system; and controlling at least one of the signal splitting module, the first sampling module and the first sampling module to process the control guiding signal based on the control guiding signal and the acquisition mode.
10. A vehicle, characterized by comprising: A signal acquisition system as claimed in claims 1-8.

Description

Signal acquisition system, signal processing method and vehicle Technical Field The application belongs to the technical field of vehicle charging, and particularly relates to a signal acquisition system, a signal processing method and a vehicle. Background In the charging process of the electric automobile, communication is realized between the charging pile and the vehicle through control guide function (CP) signals, the CP signals generally contain information such as charging states, power requirements and the like, and the vehicle can sample the CP signals in real time to control the charging process. However, the current CP signal sampling method occupies a large amount of hardware resources, and increases the vehicle cost. Disclosure of Invention The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, the application provides a signal acquisition system, a signal processing method and a vehicle, which have small occupation of hardware resources and low application cost. In a first aspect, the present application provides a signal acquisition system comprising: The signal splitting module is connected with an input interface of the signal acquisition system and is used for splitting the control guide signal into a first type signal and a second type signal; The first sampling module is connected with the signal splitting module and is used for sampling the first type of signals to obtain a first sampling result; The second sampling module is connected with the signal splitting module and is used for sampling the second type of signals to obtain a second sampling result. According to the signal acquisition system provided by the embodiment of the application, the control guide signal can be acquired from the input interface through the signal splitting module arranged in the signal acquisition system, and the control guide signal is split to obtain different types of signals, namely the first type signal and the second type signal. According to one embodiment of the application, the signal splitting module comprises: The first splitting submodule is connected with the first sampling module, and is used for obtaining the first type signal based on the control guide signal and outputting the first type signal to the first sampling module; the second splitting submodule is connected with the second sampling module, and is used for obtaining the second type signal based on the control guide signal and outputting the second type signal to the second sampling module. According to one embodiment of the application, the first type of signal is a pulse modulated signal; the first split sub-module includes: the first shaping circuit is used for shaping the control guide signal to obtain a first shaped signal; And the operational amplifier is connected with the first shaping circuit and is used for operating the first shaping signal to obtain the first type signal. According to one embodiment of the application, the second type of signal is an analog voltage signal; the second split sub-module includes: the second shaping circuit is used for shaping the control guide signal to obtain a second shaped signal; And the resistance-capacitance circuit is connected with the second shaping circuit and is used for operating the second shaping signal to obtain the second type signal. According to one embodiment of the application, the system further comprises: and the processing module is connected with the first sampling module and the second sampling module and is used for receiving the first sampling result and/or the second sampling result. According to one embodiment of the application, the system further comprises: the data synchronization module is connected with the first sampling module and the second sampling module, and is also connected with the processing module; the data synchronization module is used for receiving the first sampling result and the second sampling result, and performing synchronization processing on the first sampling result and the second sampling result to obtain a fusion sampling result; The processing module is also used for receiving the fusion sampling result. According to one embodiment of the present application, the first sampling module is connected to the input interface of the signal acquisition system, and is configured to receive the control pilot signal and sample the control pilot signal to obtain the first sampling result; The second sampling module is connected with the input interface of the signal acquisition system, and is used for receiving the control guide signal and sampling the control guide signal to obtain a second sampling result. According to one embodiment of the application, the system further comprises: The IO module is connected with the input interface, the first sampling module, the second sampling module and the signal splitting module, and is used for receiving the control guide signal input by th