WO2018149141A1 - 触摸屏抗电源干扰能力的检测方法及*** - Google Patents
触摸屏抗电源干扰能力的检测方法及*** Download PDFInfo
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- WO2018149141A1 WO2018149141A1 PCT/CN2017/103803 CN2017103803W WO2018149141A1 WO 2018149141 A1 WO2018149141 A1 WO 2018149141A1 CN 2017103803 W CN2017103803 W CN 2017103803W WO 2018149141 A1 WO2018149141 A1 WO 2018149141A1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2205—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested
- G06F11/2221—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested to test input/output devices or peripheral units
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2268—Logging of test results
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- the present invention relates to the field of touch technologies, and in particular, to a method and system for detecting a power resistance of a touch screen.
- Touch screens also known as touch screens or touch panels, are input signals that can receive contacts.
- the inductive display device is widely used in electronic devices.
- the currently used touch screen often has a phenomenon such as touch failure or false alarm point, because the working power of the touch screen generates an interference signal, thereby disturbing the touch screen, thereby affecting the touch function, and the root cause is the touch screen.
- no suitable detection method was found to measure the anti-power interference capability of the touch screen, so that the ability to resist the power supply interference could not be tested, so that the anti-power interference capability of the touch screen could not be known, and thus the specific use could not be adopted.
- the working power supply powers the touch screen, and the above phenomenon occurs when the power supply exceeding the power resistance of the touch screen is used.
- an object of the present invention is to provide a method and system for detecting the power screen interference capability of a touch screen, in order to understand the power source interference capability of the touch screen.
- the controllable power supply interference signal is scanned according to a preset scanning manner, and the preset scanning mode is to sequentially scan the touch screen according to the signal amplitude from small to large, and each scan is in advance Scanning sequentially from the initial frequency within the set frequency range;
- the current signal amplitude and current frequency of the controllable power interference signal are recorded.
- a remedy method for data management anomaly may further have There are additional technical features as follows:
- the method for detecting the power screen interference capability of the touch screen further includes:
- the controllable power supply interference signal of the current signal amplitude is sequentially scanned from the next frequency of the current frequency within the preset frequency range;
- the steps of detecting that the touch screen does not work properly include:
- An interference signal is input to the touch screen through a ground network of the touch screen.
- the preset frequency range is a value range of the operating frequency of the touch screen.
- the first signal scanning module is configured to scan the touch screen according to a preset scanning manner by scanning the controllable power interference signal, and the preset scanning manner is to sequentially scan the touch screen according to the signal amplitude from small to large. And each scan scans sequentially from the initial frequency within a preset frequency range;
- the first recording module is configured to record a current signal amplitude and a current frequency of the controllable power interference signal when detecting that the touch screen is unable to work normally.
- the detection system of the touch screen against power interference capability may further have the following additional technical features:
- the detection system of the touch screen against power interference capability further includes:
- a second signal scanning module configured to scan the touch screen in sequence from a next frequency of the current frequency within a predetermined frequency range of the controllable power interference signal of the current signal amplitude
- a second recording module configured to record, after the current frequency, that the touch screen does not work normally The frequency of all of the current signal amplitudes of the controllable power supply interference signal.
- the first signal scanning module and the second signal scanning module are respectively electrically connected to a ground network of the touch screen, so that an interference signal is input from the ground network of the touch screen to the touch screen.
- the preset frequency range is a value range of the operating frequency of the touch screen.
- the method and system for detecting the power transmission capability of the touch screen are performed by scanning the controllable power interference signal according to a preset scanning manner, and the preset scanning manner is sequentially performed according to the signal amplitude from small to large.
- the touch screen performs scanning, and each scan scans sequentially from the initial frequency within a preset frequency range, and when detecting that the touch screen cannot work normally, records the current signal amplitude of the controllable power interference signal, The current signal amplitude recorded at the time is the strength of the maximum power interference signal that the touch screen can withstand, that is, the ability to resist power interference.
- FIG. 1 is a flowchart of a method for detecting a power failure capability of a touch screen according to a first embodiment of the present invention.
- Figure 2 is a flow chart for detecting that the touch screen is not working properly.
- FIG. 3 is a flowchart of a method for detecting a power failure capability of a touch screen according to a second embodiment of the present invention.
- FIG. 4 is a schematic structural diagram of a detection system for a power barrier capability of a touch screen according to a first embodiment of the present invention.
- FIG. 1 is a flowchart of a method for detecting a power screen interference capability of a touch screen according to a first embodiment of the present invention, including steps S01 to S02 .
- step S01 the controllable power supply interference signal is scanned according to a preset scanning manner, and the preset scanning mode sequentially scans the touch screen according to the signal amplitude from small to large, and each scan is performed. Both are sequentially scanned from the initial frequency within a preset frequency range.
- Step S01 is: inputting a controllable power interference signal from the lowest signal amplitude to the touch screen, and increasing its frequency in order from the largest to the smallest in the preset frequency range, thereby
- the touch screen receives a scan signal with a certain signal amplitude and increasing frequency, and when the touch screen receives all the frequencies in the preset frequency range, the signal amplitude of the controllable power interference signal is raised by one. The level, then the frequency is again increased in order from the largest to the smallest within the preset frequency range.
- the lowest signal amplitude is a preset value
- the initial frequency is a minimum frequency within the preset frequency range.
- the controllable power interference signal is a sine wave interference signal, and is an interference signal that simulates an actual working power signal of the touch screen.
- the controllable power supply interference signal can be generated by a function signal generator, and the generated process is to generate a power supply interference signal according to the parameter by generating a relevant parameter of the power interference signal to the function signal generator, and
- the function signal generator can control the frequency and amplitude of the generated interference signal to generate a controllable power interference signal.
- the interference signal only interferes with the touch screen when the frequency is the same as or similar to the operating frequency of the touch screen, but if the amplitude of the interference signal is weak, although the frequency of the interference signal is disturbing the frequency of the touch screen.
- the touch screen still does not work normally at this time, so the ability of the touch screen to resist power interference is mainly manifested in how much interference signal amplitude can withstand.
- the operating frequency of the touch screen ranges from 50KHz to 500KHz, although the interference frequency is the same or similar to the operating frequency of the touch screen, and the preset frequency range is the value range of the operating frequency of the touch screen. Between the operating frequencies of the touch screen can be set to any one of 50KHz-500KHz.
- the interference signal is input to the touch screen through the grounding network of the touch screen.
- Step S02 when it is detected that the touch screen cannot work normally, record the current signal amplitude and the current frequency of the controllable power interference signal.
- the step of detecting that the touch screen cannot work normally can be implemented according to the flowchart in FIG. 2 .
- FIG. 2 is a flowchart for detecting that the touch screen cannot work normally, and includes steps S11 to S12 .
- Step S11 acquiring click position information of the touch screen and corresponding sensing position information.
- the click location information is location information that the user clicks on the touch screen, and the touch location information is location information corresponding to the touched location information, and the touch screen is normally clicked.
- the location information is consistent with the sensed location information.
- Step S12 When it is determined that the click location information does not match the sensing location information, it is detected that the touch screen cannot work normally.
- step S02 when it is detected that the touch screen cannot work normally, when the touch screen fails to work normally for the first time, the click position information and the first occurrence of the click position information The sensing position information is inconsistent.
- the amplitude of the interference signal is proportional to the intensity, that is, the greater the amplitude of the interference signal, the greater the intensity of the interference, so the current signal amplitude recorded in the step S02 is the touch.
- the maximum ability of the touch screen to resist power interference when the touch screen is working normally, the power source higher than the current signal amplitude can be avoided, so that the phenomenon that the touch screen cannot work normally can be avoided, and the step S02 is performed. Recording the current frequency when the touch screen is not working normally, indicating that the operating frequency set by the touch screen is close to the current frequency, and when the touch screen is working normally, the frequency of use can be avoided and the current frequency is close to The power supply further avoids the phenomenon that the touch screen does not work properly.
- the above-mentioned touch screen anti-power interference capability detection method scans the touch screen according to a preset scan mode by using the controllable power supply interference signal, and the preset scan mode is sequentially performed according to the signal amplitude from small to large.
- the touch screen performs scanning, and each scan scans sequentially from the initial frequency within a preset frequency range.
- FIG. 3 is a flowchart of a method for detecting a power failure capability of a touch screen according to a second embodiment of the present invention, including steps S21 to S24.
- step S21 the controllable power supply interference signal is scanned according to a preset scanning manner, and the preset scanning mode sequentially scans the touch screen according to the signal amplitude from small to large, and each scan is performed. Both are sequentially scanned from the initial frequency within a preset frequency range.
- Step S22 when it is detected that the touch screen cannot work normally, record the current signal amplitude and the current frequency of the controllable power interference signal.
- the current signal amplitude and the current frequency recorded in the step S22 are recorded when the touch screen is not working normally for the first time, and the current signal amplitude is the touch screen.
- the maximum power interference signal is subjected to the strength of the signal. Therefore, the step S22 has completed the detection of the power source interference capability of the touch screen.
- the interference signal is only used when the interference signal is the same or similar to the operating frequency of the touch screen. The interference is performed, and the step S22 only finds that a frequency may cause the touch screen to fail to work normally, that is, the current frequency, so it is also necessary to find other touch screens in the preset frequency range that cannot be generated normally. The frequency of the phenomenon of work.
- Step S23 the controllable power interference signal of the current signal amplitude is in the preset frequency range.
- the touch screen is scanned in sequence from the next frequency of the current frequency.
- Step S23 is: inputting a controllable power interference signal having an amplitude of the current signal amplitude to the touch screen, and having its power within the preset frequency range from a next frequency of the current frequency Gradually increasing, so that the touch screen receives a scan signal.
- the purpose of the step S23 is to input the frequency from the current frequency to the touch screen within the preset frequency range under the current amplitude, that is, the step S22 is not input after the current amplitude.
- the frequency continues to be input to the touch screen, thereby obtaining all frequencies in the predetermined frequency range that, in addition to the current frequency, generate interference from the touch screen.
- Step S24 recording the frequency of the controllable power interference signal of all the current signal amplitudes when the touch screen cannot work normally after the current frequency.
- the anti-interference ability of the touch screen can be detected on the one hand, that is, the anti-interference ability of the touch screen is
- the current amplitude on the other hand, can detect all frequencies that would interfere with the touch screen within the preset frequency range, so that in normal use, when the touch screen is working normally, the lower level can be used.
- the power source of the current signal amplitude is used, so that the phenomenon that the touch screen cannot work normally can be avoided, and the frequency recorded by using the step S22 and the step S24 can be avoided, thereby further avoiding the phenomenon that the touch screen cannot work normally. .
- FIG. 4 it is a schematic structural diagram of a detection system 10 for a power transmission capability of a touch screen according to a first embodiment of the present invention, including a first The signal scanning module 11 and the first recording module 12.
- the first signal scanning module 11 is electrically connected to the touch screen 20 for scanning the controllable power supply interference signal according to a preset scanning manner.
- the preset scanning mode is as follows: The touch screen 20 is sequentially scanned in a large order, and each scan is sequentially scanned from the initial frequency within a preset frequency range.
- the first recording module 12 is configured to record a current signal amplitude and a current frequency of the controllable power interference signal when detecting that the touch screen 20 is not working properly.
- the touch screen anti-power interference capability detection system 10 further includes an acquisition module 13 and a detection module 14.
- the acquiring module 13 is electrically connected to the touch screen 20 for acquiring click position information and corresponding sensing position information of the touch screen 20 .
- the detecting module 14 is electrically connected to the acquiring module 13 and the first recording module 12, and is configured to detect that the touch screen 20 cannot be detected when the click location information is inconsistent with the sensing location information. Normal operation, a signal is simultaneously generated to the first recording module 12, so that the first recording module 12 records the current signal amplitude and the current frequency of the controllable power interference signal.
- the touch screen anti-power interference capability detecting system 10 further includes a second signal scanning module 15 and a second recording module 16.
- the second signal scanning module 15 is electrically connected to the touch screen 20, and the controllable power interference signal of the current signal amplitude is started from the next frequency of the current frequency within the preset frequency range.
- the touch screen 20 is scanned in sequence.
- the second recording module 16 is electrically connected to the detecting module 14 and the second signal scanning module 15 for recording all the current currents when the touch screen 20 cannot work normally after the current frequency.
- the frequency of the signal's controllable power supply interferes with the signal.
- first signal scanning module 11 and the second signal scanning module 15 are respectively electrically connected to the grounding network of the touch screen 20, so that an interference signal is input from the grounding network of the touch screen 20 to the Touch screen 20.
- the preset frequency range is a value range of the operating frequency of the touch screen 20.
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Abstract
一种触摸屏抗电源干扰能力的检测方法及***，所述触摸屏抗电源干扰能力的检测方法包括：将可控电源干扰信号按照预设的扫描方式对所述触摸屏进行扫描，所述预设的扫描方式为按照信号幅度从小到大的顺序依次对所述触摸屏进行扫描，且每次扫描均在预设的频率范围内从初始频率开始依次扫描（S01）；当检测到所述触摸屏无法正常工作时，记录所述可控电源干扰信号的当前信号幅度及当前频率（S02）。触摸屏抗电源干扰能力的检测方法及***，通过所述预设的扫描方式对所述触摸屏进行扫描，当检测到所述触摸屏无法正常工作时，记录所述可控电源干扰信号的当前信号幅度，所述当前信号幅度即为所述触摸屏所能够承受的最大电源干扰信号的强度。
Description
本发明涉及触控技术领域，特别涉及一种触摸屏抗电源干扰能力的检测方法及***。
随着电子及触控技术的不断发展，触摸屏也得到了快速发展，成为了人们生活当中不可缺少的一部分，触摸屏又称为触控屏或者触控面板，是一种可接收触头等输入信号的感应式显示装置，广泛运用在电子设备上。
现有技术中，目前使用的触摸屏经常会出现触控失灵或者误报点等现象，原因在于触摸屏的工作电源会产生干扰信号，从而对触摸屏进行了干扰，进而影响触控功能，根本原因在于触摸屏在出厂时没有找到一种合适的检测方法来衡量触摸屏的抗电源干扰能力，使得不能进行抗电源干扰能力的测试，从而无法得知触摸屏的抗电源干扰能力，进而在具体使用时，无法采用合适的工作电源对触摸屏进行供电，当采用超出触摸屏的抗电源干扰能力的电源时，触摸屏将出现上述现象。
发明内容
基于此，本发明的目的是提供一种触摸屏抗电源干扰能力的检测方法及***，以了解触摸屏的抗电源干扰能力。
根据本发明实施例的一种触摸屏抗电源干扰能力的检测方法，包括：
将可控电源干扰信号按照预设的扫描方式对所述触摸屏进行扫描，所述预设的扫描方式为按照信号幅度从小到大的顺序依次对所述触摸屏进行扫描，且每次扫描均在预设的频率范围内从初始频率开始依次扫描；
当检测到所述触摸屏无法正常工作时，记录所述可控电源干扰信号的当前信号幅度及当前频率。
另外，根据本发明上述实施例的一种数据管理异常的补救方法，还可以具
有如下附加的技术特征：
在所述当检测到所述触摸屏无法正常工作时，记录所述可控电源干扰信号的当前信号幅度及当前频率的步骤之后，所述触摸屏抗电源干扰能力的检测方法还包括：
将所述当前信号幅度的可控电源干扰信号在所述预设的频率范围内从所述当前频率的下一个频率开始依次对所述触摸屏进行扫描；
记录在所述当前频率之后，所述触摸屏无法正常工作时的所有的所述当前信号幅度的可控电源干扰信号的频率。
检测所述触摸屏无法正常工作的步骤包括：
获取所述触摸屏的点击位置信息及对应的感应位置信息；
当判断到所述点击位置信息与所述感应位置信息不一致时，则检测出所述触摸屏无法正常工作。
干扰信号通过所述触摸屏的接地网络输入给所述触摸屏。
所述预设的频率范围为所述触摸屏的工作频率的取值范围。
根据本发明实施例的一种触摸屏抗电源干扰能力的检测***，包括：
第一信号扫描模块，用于将可控电源干扰信号按照预设的扫描方式对所述触摸屏进行扫描，所述预设的扫描方式为按照信号幅度从小到大的顺序依次对所述触摸屏进行扫描，且每次扫描均在预设的频率范围内从初始频率开始依次扫描；
第一记录模块，用于当检测到所述触摸屏无法正常工作时，记录所述可控电源干扰信号的当前信号幅度及当前频率。
另外，根据本发明上述实施例的一种触摸屏抗电源干扰能力的检测***，还可以具有如下附加的技术特征：
所述触摸屏抗电源干扰能力的检测***还包括：
第二信号扫描模块，用于将所述当前信号幅度的可控电源干扰信号在所述预设的频率范围内从所述当前频率的下一个频率开始依次对所述触摸屏进行扫描；
第二记录模块，用于记录在所述当前频率之后，所述触摸屏无法正常工作
时的所有的所述当前信号幅度的可控电源干扰信号的频率。
所述第一信号扫描模块和所述第二信号扫描模块分别与所述触摸屏的接地网络电性连接，以使干扰信号从所述触摸屏的接地网络上输入给所述触摸屏。
所述预设的频率范围为所述触摸屏的工作频率的取值范围。
上述触摸屏抗电源干扰能力的检测方法及***，通过将可控电源干扰信号按照预设的扫描方式对所述触摸屏进行扫描，所述预设的扫描方式为按照信号幅度从小到大的顺序依次对所述触摸屏进行扫描，且每次扫描均在预设的频率范围内从初始频率开始依次扫描，当检测到所述触摸屏无法正常工作时，记录所述可控电源干扰信号的当前信号幅度，此时记录的所述当前信号幅度为所述触摸屏所能够承受的最大电源干扰信号的强度，即为抗电源干扰能力。
图1为本发明第一实施例中触摸屏抗电源干扰能力的检测方法的流程图。
图2为检测触摸屏无法正常工作的流程图。
图3为本发明第二实施例中触摸屏抗电源干扰能力的检测方法的流程图。
图4为本发明第一实施例中触摸屏抗电源干扰能力的检测***的结构示意图。
主要元件符号说明
如下具体实施方式将结合上述附图进一步说明本发明。
为了便于理解本发明，下面将参照相关附图对本发明进行更全面的描述。附图中给出了本发明的若干实施例。但是，本发明可以以许多不同的形式来实
现，并不限于本文所描述的实施例。相反地，提供这些实施例的目的是使对本发明的公开内容更加透彻全面。
需要说明的是，当元件被称为“固设于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的。
除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本发明。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
请参阅图1，所示为本发明第一实施例中触摸屏抗电源干扰能力的检测方法的流程图，包括步骤S01至S02。
步骤S01，将可控电源干扰信号按照预设的扫描方式对所述触摸屏进行扫描，所述预设的扫描方式为按照信号幅度从小到大的顺序依次对所述触摸屏进行扫描，且每次扫描均在预设的频率范围内从初始频率开始依次扫描。
所述步骤S01为，将一可控制的电源干扰信号从最低的信号幅度开始输入给所述触摸屏，并且将它的频率在所述预设的频率范围内从大到小依次增大，从而使得所述触摸屏接收到一个信号幅度一定且频率不断增大的扫描信号，当所述触摸屏接收到了所述预设的频率范围内的所有频率时，则将可控制的电源干扰信号的信号幅度提升一个等级，然后频率重新在所述预设的频率范围内从大到小依次增大。其中，最低的信号幅度为预设的一个值，并且所述初始频率为所述预设的频率范围内的最小频率。
其中，所可控电源干扰信号为正弦波干扰信号，且为一种模仿所述触摸屏的实际工作电源信号的干扰信号。所述可控电源干扰信号可通过函数信号发生器来产生，产生的过程为通过将电源干扰信号的相关参数发生给函数信号发生器，函数信号发生器根据参数即可模仿出电源干扰信号，并且函数信号发生器可以对产生的干扰信号的频率及幅度进行控制，从而可产生可控制的电源干扰信号。
可以理解的，干扰信号只有在频率与所述触摸屏的工作频率相同或者相近时，才会对所述触摸屏进行干扰，但是，如果干扰信号的幅度较弱，虽然干扰信号的频率在干扰触摸屏的频率范围内，此时仍然不会使所述触摸屏无法正常工作，因此所述触摸屏抗电源干扰的能力主要表现在能够承受多大的干扰信号幅度上。
虽然干扰信号在所述触摸屏的工作频率相同或者相近时因此所述预设的频率范围为所述触摸屏的工作频率的取值范围，通常的所述触摸屏的工作频率的取值范围为50KHz-500KHz之间，可以将所述触摸屏的工作频率设置为50KHz-500KHz当中的任意一个值。
需要指出的是，干扰信号通过所述触摸屏的接地网络输入给所述触摸屏。
步骤S02，当检测到所述触摸屏无法正常工作时，记录所述可控电源干扰信号的当前信号幅度及当前频率。
其中，检测所述触摸屏无法正常工作的步骤可以按照图2当中的流程图进行实施，请查阅图2，所示为检测触摸屏无法正常工作的流程图，包括步骤S11至S12。
步骤S11，获取所述触摸屏的点击位置信息及对应的感应位置信息。
其中，所述点击位置信息为用户在所述触摸屏上点击的位置信息，所述感应位置信息为在获取到点击位置信息后对应感应出的位置信息，在所述触摸屏正常情况下，所述点击位置信息与所述感应位置信息一致。
步骤S12，当判断到所述点击位置信息与所述感应位置信息不一致时，则检测出所述触摸屏无法正常工作。
可以理解的，当判断到所述点击位置信息与所述感应位置信息不一致时，说明所述触摸屏出现了跳点或者误报点的现象，已经无法正常工作。
需要指出的是，在所述步骤S02当中，所述当检测到所述触摸屏无法正常工作时为第一次检测到所述触摸屏无法正常工作时，即第一次出现所述点击位置信息与所述感应位置信息不一致。
可以理解的，干扰信号的幅度与强度成正比，即干扰信号的幅度越大，则干扰的强度越大，因此所述步骤S02所记录下的所述当前信号幅度即为所述触
摸屏的抵抗电源干扰的最大能力，在所述触摸屏正常工作时，可以避开使用高于所述当前信号幅度的电源，从而可避免出现所述触摸屏无法正常工作的现象，并且所述步骤S02记录了所述触摸屏无法正常工作时的所述当前频率，说明所述触摸屏设定的工作频率与所述当前频率接近，在所述触摸屏正常工作时，可以避开使用频率与所述当前频率接近的电源，进一步的避免出现所述触摸屏无法正常工作的现象。
综上，上述触摸屏抗电源干扰能力的检测方法通过将可控电源干扰信号按照预设的扫描方式对所述触摸屏进行扫描，所述预设的扫描方式为按照信号幅度从小到大的顺序依次对所述触摸屏进行扫描，且每次扫描均在预设的频率范围内从初始频率开始依次扫描，当检测到所述触摸屏无法正常工作时，记录所述可控电源干扰信号的当前信号幅度及当前频率，此时记录的所述当前信号幅度为所述触摸屏所能够承受的最大电源干扰信号的强度，即为抗电源干扰能力。
请参阅图3，所示为本发明第二实施例中触摸屏抗电源干扰能力的检测方法的流程图，包括步骤S21至S24。
步骤S21，将可控电源干扰信号按照预设的扫描方式对所述触摸屏进行扫描，所述预设的扫描方式为按照信号幅度从小到大的顺序依次对所述触摸屏进行扫描，且每次扫描均在预设的频率范围内从初始频率开始依次扫描。
步骤S22，当检测到所述触摸屏无法正常工作时，记录所述可控电源干扰信号的当前信号幅度及当前频率。
可以理解的，所述步骤S22记录的所述当前信号幅度及所述当前频率，为第一次检测到所述触摸屏无法正常工作时记录的，并且所述当前信号幅度即为所述触摸屏所能够承受的最大电源干扰信号的强度，因此所述步骤S22已经完成对所述触摸屏的抗电源干扰能力的检测，由于干扰信号在与所述触摸屏的工作频率相同或者相近时，才会对所述触摸屏进行干扰，而所述步骤S22只是找出了一个频率会产生触摸屏无法正常工作的现象，即为所述当前频率，因此还需要在所述预设的频率范围内找出其它会产生触摸屏无法正常工作的现象的频率。
步骤S23，将所述当前信号幅度的可控电源干扰信号在所述预设的频率范围
内从所述当前频率的下一个频率开始依次对所述触摸屏进行扫描。
所述步骤S23为，将一个幅度为所述当前信号幅度的可控电源干扰信号输入给所述触摸屏，并且将它的功率在所述预设的频率范围内从所述当前频率的下一个频率开始逐渐增大，从而使所述触摸屏接收到一个扫描信号。所述步骤S23的目的为在所述当前幅度下将所述预设的频率范围内从所述当前频率以后频率输入给所述触摸屏，即在所述当前幅度下将所述步骤S22没有输入完的频率继续输入给所述触摸屏，从而得到在所述预设的频率范围内，除所述当前频率以外，会产生所述触摸屏产生干扰的所有频率。
步骤S24，记录在所述当前频率之后，所述触摸屏无法正常工作时的所有的所述当前信号幅度的可控电源干扰信号的频率。
在本实施例当中的所述触摸屏抗电源干扰能力的检测方法，通过所述步骤S21至所述步骤S24，一方面可以检测出所述触摸屏的抗干扰能力，即所述触摸屏的抗干扰能力为所述当前幅度，另一方面可以检测出在所述预设的频率范围内会对所述触摸屏产生干扰的所有频率，因此在正常使用时，在所述触摸屏正常工作时，可以使用低于所述当前信号幅度的电源，从而可避免出现所述触摸屏无法正常工作的现象，同时可以避开使用所述步骤S22及所述步骤S24记录的频率，进一步的避免出现所述触摸屏无法正常工作的现象。
本发明另一方面，还提供一种触摸屏抗电源干扰能力的检测***，请参阅图4，所示为本发明第一实施例中触摸屏抗电源干扰能力的检测***10的结构示意图，包括第一信号扫描模块11及第一记录模块12。
所述第一信号扫描模块11与触摸屏20电性连接，用于将可控电源干扰信号按照预设的扫描方式对所述触摸屏20进行扫描，所述预设的扫描方式为按照信号幅度从小到大的顺序依次对所述触摸屏20进行扫描，且每次扫描均在预设的频率范围内从初始频率开始依次扫描。
所述第一记录模块12，用于当检测到所述触摸屏20无法正常工作时，记录所述可控电源干扰信号的当前信号幅度及当前频率。
进一步地，所述触摸屏抗电源干扰能力的检测***10还包括获取模块13及检测模块14。
所述获取模块13与所述触摸屏20电性连接，用于获取所述触摸屏20的点击位置信息及对应的感应位置信息。
所述检测模块14与所述获取模块13及所述第一记录模块12电性连接，用于当判断到所述点击位置信息与所述感应位置信息不一致时，则检测出所述触摸屏20无法正常工作，同时发生信号至所述第一记录模块12，以使所述第一记录模块12记录所述可控电源干扰信号的当前信号幅度及当前频率。
进一步地，所述触摸屏抗电源干扰能力的检测***10还包括第二信号扫描模块15及第二记录模块16。
所述第二信号扫描模块15与所述触摸屏20电性连接，用于将所述当前信号幅度的可控电源干扰信号在所述预设的频率范围内从所述当前频率的下一个频率开始依次对所述触摸屏20进行扫描。
所述第二记录模块16与所述检测模块14及所述第二信号扫描模块15电性连接，用于记录在所述当前频率之后，所述触摸屏20无法正常工作时的所有的所述当前信号幅度的可控电源干扰信号的频率。
进一步地，所述第一信号扫描模块11和所述第二信号扫描模块15分别与所述触摸屏20的接地网络电性连接，以使干扰信号从所述触摸屏20的接地网络上输入给所述触摸屏20。
进一步地，所述预设的频率范围为所述触摸屏20的工作频率的取值范围。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。
Claims (10)
- 一种触摸屏抗电源干扰能力的检测方法，其特征在于，包括：将可控电源干扰信号按照预设的扫描方式对所述触摸屏进行扫描，所述预设的扫描方式为按照信号幅度从小到大的顺序依次对所述触摸屏进行扫描，且每次扫描均在预设的频率范围内从初始频率开始依次扫描；当检测到所述触摸屏无法正常工作时，记录所述可控电源干扰信号的当前信号幅度及当前频率。
- 根据权利要求1所述的触摸屏抗电源干扰能力的检测方法，其特征在于，在所述当检测到所述触摸屏无法正常工作时，记录所述可控电源干扰信号的当前信号幅度及当前频率的步骤之后，所述触摸屏抗电源干扰能力的检测方法还包括：将所述当前信号幅度的可控电源干扰信号在所述预设的频率范围内从所述当前频率的下一个频率开始依次对所述触摸屏进行扫描；记录在所述当前频率之后，所述触摸屏无法正常工作时的所有的所述当前信号幅度的可控电源干扰信号的频率。
- 根据权利要求1所述的触摸屏抗电源干扰能力的检测方法，其特征在于，检测所述触摸屏无法正常工作的步骤包括：获取所述触摸屏的点击位置信息及对应的感应位置信息；当判断到所述点击位置信息与所述感应位置信息不一致时，则检测出所述触摸屏无法正常工作。
- 根据权利要求2所述的触摸屏抗电源干扰能力的检测方法，其特征在于，干扰信号通过所述触摸屏的接地网络输入给所述触摸屏。
- 根据权利要求1所述的触摸屏抗电源干扰能力的检测方法，其特征在于，所述预设的频率范围为所述触摸屏的工作频率的取值范围。
- 一种触摸屏抗电源干扰能力的检测***，其特征在于，包括：第一信号扫描模块，用于将可控电源干扰信号按照预设的扫描方式对所述触摸屏进行扫描，所述预设的扫描方式为按照信号幅度从小到大的顺序依次对所述触摸屏进行扫描，且每次扫描均在预设的频率范围内从初始频率开始依次扫描；第一记录模块，用于当检测到所述触摸屏无法正常工作时，记录所述可控电源干扰信号的当前信号幅度及当前频率。
- 根据权利要求6所述的触摸屏抗电源干扰能力的检测***，其特征在于，所述触摸屏抗电源干扰能力的检测***还包括：第二信号扫描模块，用于将所述当前信号幅度的可控电源干扰信号在所述预设的频率范围内从所述当前频率的下一个频率开始依次对所述触摸屏进行扫描；第二记录模块，用于记录在所述当前频率之后，所述触摸屏无法正常工作时的所有的所述当前信号幅度的可控电源干扰信号的频率。
- 根据权利要求6所述的触摸屏抗电源干扰能力的检测***，其特征在于，所述触摸屏抗电源干扰能力的检测***还包括：获取模块，用于获取所述触摸屏的点击位置信息及对应的感应位置信息；检测模块，用于当判断到所述点击位置信息与所述感应位置信息不一致时，则检测出所述触摸屏无法正常工作。
- 根据权利要求7所述的触摸屏抗电源干扰能力的检测***，其特征在于，所述第一信号扫描模块和所述第二信号扫描模块分别与所述触摸屏的接地网络电性连接，以使干扰信号从所述触摸屏的接地网络上输入给所述触摸屏。
- 根据权利要求6所述的触摸屏抗电源干扰能力的检测***，其特征在于，所述预设的频率范围为所述触摸屏的工作频率的取值范围。
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| CN102830837A (zh) * | 2012-07-19 | 2012-12-19 | 深圳市汇顶科技有限公司 | 一种用于触摸检测的噪声抑制方法、***及触摸终端 |
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| CN106681875A (zh) * | 2017-02-17 | 2017-05-17 | 广州视源电子科技股份有限公司 | 触摸屏抗电源干扰能力的检测方法及*** |
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