Data acquisition system for providing multiple driving modes for a mobile phone camera coil

Abstract

The application discloses a data collection system for providing multiple driving modes for a mobile phone camera coil, which comprises a power supply system module, a constant current or communication driving module, an AD collection module, a data storage module and a network port transceiving module; the power supply system module is used for providing corresponding voltage according to the working mode of the data collection system; an external controller specifies the working mode and provides parameters to the data storage module; the constant current or communication driving module is used for driving the mobile phone camera coil motor by using the driving mode determined by the working mode; the AD collection module is used for collecting data; and the collected data is uploaded to the external controller through the network port transceiving module. The data collection system of the application can meet the requirements of different environments and different manufacturers, and can overcome the defects of the prior art, such as single function, insufficient data collection capacity and no external control.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mobile terminals, in particular to a data acquisition system for providing multiple driving modes for a mobile phone camera coil. BACKGROUND

[0002] A mobile phone camera coil is tested by communication (IIC) or current driving coil, and close loop VCM (Close Loop VCM) is a system capable of driving and adjusting a mobile phone camera coil to focus, and according to the feedback coil signal of a HALL sensor, the system is used for action focusing test of a mobile phone camera.

[0003] The existing test method is to drive the coil by a stabilized power supply to realize coil action. For example, a stabilized power supply is used to directly apply voltage to a mobile phone camera.

[0004] However, the existing test method is relatively single, and only one of communication (IIC / SPI) or current can be used to drive the coil motor to realize coil motor shaking focusing action. The current feedback of the coil motor and the five-axis data set feedback of the laser head are all independent of the coil driving, the coil motor data acquisition mode is fixed, and the acquisition mode cannot be changed according to various devices. Because the coil motor types are different, the driving modes and the provided power supply voltages are also different, and the existing method cannot directly replace the coil motor according to the different types. The cost of redeveloping the test system is high. SUMMARY

[0005] Therefore, the present application provides a data acquisition system and acquisition method for providing multiple driving modes for a mobile phone camera coil, which can solve the technical problem that the mobile phone camera cannot be directly replaced for testing according to the coil motor type in the prior art.

[0006] In order to solve the above technical problems, the present application is implemented as follows.

[0007] The data acquisition system for providing multiple driving modes for a mobile phone camera coil comprises:

[0008] a power supply system module, a constant current or communication driving module, an AD acquisition module, a data storage module, and a network transceiver module;

[0009] The power supply system module is used to provide multiple different voltages, and provide corresponding voltages according to the working mode of the data acquisition system;

[0010] An external controller selects a working mode of driving the mobile phone camera coil and provides parameters to the data storage module according to the selected working mode; the working mode includes constant current driving and communication driving; the constant current or communication driving module is configured to drive the mobile phone camera coil motor in a driving mode determined according to the working mode, so that the mobile phone camera coil motor moves as required;

[0011] The AD acquisition module is configured to acquire data, including current values and resistance values fed back by the mobile phone camera coil motor and a distance of coil motor movement fed back by the laser head; and upload the acquired data to the external controller through the network port transceiver module;

[0012] The data storage module is configured to receive and store data parameters issued by the external controller, determine a working mode and mobile phone camera coil motor movement according to the data parameters, and store the acquired data.

[0013] Preferably, when the constant current or communication driving driving module works in the communication driving mode, the IIC communication function is used, and the supply voltage of the IIC communication is adjusted according to the model of the mobile phone camera coil; when the constant current or communication driving driving module works in the constant current driving mode, a DAC chip is used inside the constant current or communication driving driving module to output a current power amplification constant current board to generate current driving.

[0014] Preferably, the constant current or communication driving driving module can drive the mobile phone camera coil at different frequencies according to requirements.

[0015] Preferably, the AD acquisition module acquires data through an ADC chip, and the ADC chip is configured with 8 differential channels for acquiring current values and resistance values fed back by the mobile phone camera coil motor and a distance of coil motor movement fed back by the laser head.

[0016] Preferably, the AD acquisition module can acquire data synchronously or asynchronously according to requirements.

[0017] A data acquisition method for providing a mobile phone camera coil with multiple driving modes, including the data acquisition system for providing a mobile phone camera coil with multiple driving modes as described above, the acquisition method includes:

[0018] Step S21: obtaining parameters from an external controller and selecting a working mode;

[0019] Step S22: according to an instruction of the external controller, the constant current or communication driving module drives the mobile phone camera coil motor in a driving mode determined according to the working mode;

[0020] Step S23: the AD acquisition module acquires data in real time, the data comprising current values, resistance values of the mobile phone camera coil motor in real time feedback during driving of the mobile phone camera coil motor; analog voltage values of the laser laser head in real time feedback, and converting the voltage data of the laser laser head into the running distance um value of the coil motor in driving; wherein the distance of the coil motor action is five-axis data;

[0021] Step S24: the collected data is uploaded to an external controller through the network transceiver module, and the collected data is displayed in the external controller, and the collected data is processed.

[0022] Beneficial effects:

[0023] The application can use communication mode (IIC, SPI) to drive the mobile phone camera coil motor, or use precise microampere current to drive the mobile phone camera, collect the feedback current of the mobile phone camera coil motor and the distance data (X / Y / Z / TX / TY) of the five-axis laser laser head, and contain network / serial port communication.

[0024] Has the following technical effects:

[0025] (1) The application is configured with communication driving mode, current driving mode, and data acquisition, and has multiple functions, which can meet the needs of different environments and different manufacturers, and the system has EEPROM storage, network, serial port, SPI, external triggering and other functions. It can overcome the defects of single function, insufficient data acquisition capacity and no external control of the prior art.

[0026] (2) The application can drive different IIC or constant current sources according to different manufacturer requirements, realize different acquisition modes according to different requirements, and has multiple communication control modes.

[0027] (3) The application drives in different ways according to different requirements of product driving mode, which can be used with current power amplification constant current drive board, IIC control IC chip itself driving, can collect data and external data acquisition card according to requirements, and can store a large amount of data. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 The application provides a data acquisition system structure schematic diagram for providing multiple driving modes for mobile phone camera coils.

[0029] Figure 2A flowchart of a data acquisition method for providing multiple driving modes for a mobile phone camera coil is provided. DETAILED DESCRIPTION

[0030] The application will be described in detail below with reference to the accompanying drawings and examples.

[0031] As shown in the drawings, Figure 1 The application provides a data acquisition system for providing multiple driving modes for a mobile phone camera coil, comprising:

[0032] a power supply system module, a constant current or communication driving module, an AD acquisition module, a data storage module, and a network port transceiver module.

[0033] The power supply system module is used to provide multiple different voltages, and provide corresponding voltages according to the working mode of the data acquisition system.

[0034] An external controller selects the working mode of the driving of the mobile phone camera coil, and provides parameters to the data storage module according to the selected working mode; the working mode includes constant current driving and communication driving. The constant current or communication driving module is used to drive the mobile phone camera coil motor in the driving mode determined by the working mode, so that the mobile phone camera coil motor moves as required.

[0035] The AD acquisition module is used to acquire data, including the current value, resistance value, and distance of the coil motor action fed back by the mobile phone camera coil motor; the acquired data is uploaded to the external controller through the network port transceiver module.

[0036] The data storage module is used to receive and store the data parameters issued by the external controller, and determine the working mode and the action of the mobile phone camera coil motor according to the data parameters; and store the acquired data.

[0037] The action of the mobile phone camera coil motor can realize, for example, current running circle, running fork, and running cross.

[0038] When the constant current or communication driving module works in the communication driving mode, IIC communication function is used, and the supply voltage of IIC communication is adjusted according to the model of the mobile phone camera coil; when the constant current or communication driving module works in the constant current driving mode, a DAC chip is used inside the constant current or communication driving module to output a current power amplification constant current board to generate current driving.

[0039] Further, the constant current or communication driving module can drive the mobile phone camera coil at different frequencies according to requirements.

[0040] The AD acquisition module acquires data through an ADC chip, the ADC chip is configured with 8 differential channels, and is used for acquiring current values, resistance values of a mobile phone camera coil motor feedback, and a distance of coil motor action of a laser laser head feedback.

[0041] Further, the AD acquisition module can perform synchronous or asynchronous data acquisition according to requirements.

[0042] In the embodiment, the plurality of voltages include 5V, 3.3V, 15V, 1.8V, etc. The action of the mobile phone camera coil motor includes rotation in the up, down, left and right directions. The external controller is a PC.

[0043] As shown in Figure 2 The application provides a data acquisition method for providing a plurality of driving modes for a mobile phone camera coil, based on the data acquisition system for providing a plurality of driving modes for a mobile phone camera coil as described above, the acquisition method comprises the following steps:

[0044] Step S21: obtaining parameters from an external controller and selecting a working mode;

[0045] Step S22: according to an instruction of the external controller, the constant current or communication driving module drives the mobile phone camera coil motor in a driving mode determined by the working mode;

[0046] Step S23: the AD acquisition module acquires data in real time, the data includes current values and resistance values of the mobile phone camera coil motor in real time feedback during driving of the mobile phone camera coil motor; the laser laser head feeds back an analog voltage value in real time, and converts the voltage data fed back by the laser laser head into a coil motor running distance um value during driving; wherein the distance of the coil motor action is five-axis data.

[0047] Step S24: uploading the acquired data to the external controller through the network port transceiver module, displaying the acquired data in the external controller, and processing the acquired data.

[0048] The above specific embodiments only describe the design principles of the application, and the shapes and names of the components in the description can be different and are not limited. Therefore, the person skilled in the art can modify or replace the technical solutions described in the foregoing embodiments; and these modifications and replacements do not deviate from the purpose and technical solutions of the application, and should belong to the protection scope of the application.

Claims

1. A data acquisition system for providing multiple driving methods for a mobile phone camera coil, characterized in that, The application relates to a data acquisition system for a mobile phone camera coil, which comprises the following modules: a power supply system module, a constant current or communication driving module, an AD acquisition module, a data storage module and a network port transceiving module. The power supply system module is used for providing different voltages according to the working mode of the data acquisition system. An external controller selects the working mode of the driving of the mobile phone camera coil and provides parameters to the data storage module according to the selected working mode. The working mode comprises constant current driving and communication driving; the constant current or communication driving module is used for driving the mobile phone camera coil motor in the driving mode determined by the working mode so that the mobile phone camera coil motor moves as required. The AD acquisition module is used for acquiring data, the data comprising current values, resistance values fed back by the mobile phone camera coil motor and the distance of the coil motor movement fed back by the laser head; the acquired data is uploaded to the external controller through the network port transceiving module. The data storage module is used for receiving and storing the data parameters issued by the external controller and determining the working mode and the movement of the mobile phone camera coil motor according to the data parameters and storing the acquired data. When the constant current or communication driving module works in the communication driving mode, IIC communication function is used and the supply voltage of the IIC communication is adjusted according to the type of the mobile phone camera coil; when the constant current or communication driving module works in the constant current driving mode, a DAC chip is used in the constant current or communication driving module to output a current power amplification constant current board to generate current driving.

2. The system of claim 1, wherein, The constant current or communication driving module can drive the mobile phone camera coil at different frequencies according to requirements.

3. The system of any of claims 1-2, wherein, The AD acquisition module acquires data through an ADC chip, the ADC chip is configured with 8 differential channels and is used for acquiring current values, resistance values fed back by the mobile phone camera coil motor and the distance of the coil motor movement fed back by the laser head.

4. The system of claim 1, wherein, The AD acquisition module can acquire synchronous or asynchronous data according to requirements.

5. The system of claim 4, wherein, The acquisition method comprises the following steps:

6. A data acquisition method for providing multiple driving modes for a mobile phone camera coil, based on the data acquisition system for providing multiple driving modes for a mobile phone camera coil according to any one of claims 1-5, characterized in that, Step S21: acquiring parameters from an external controller and selecting a working mode; Step S22: according to the instruction of the external controller, the constant current or communication driving module drives the mobile phone camera coil motor in the driving mode determined by the working mode; Step S23: the AD acquisition module acquires data in real time, the data comprising current values, resistance values fed back by the mobile phone camera coil motor in real time during the driving process; the laser head feeds back analog voltage values in real time and converts the voltage data fed back by the laser head into the running distance um of the coil motor during driving; wherein the distance of the coil motor movement is five-axis data; Step S24: the acquired data is uploaded to the external controller through the network port transceiving module, the acquired data is displayed in the external controller and the acquired data is processed. ​

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