技术领域technical field
本发明涉及一种触摸控制方法，属于触摸屏控制技术领域。The invention relates to a touch control method and belongs to the technical field of touch screen control.
背景技术Background technique
目前在家用电器等各个领域都普遍采用触摸屏作为显示及操作装置，触摸屏上基本划分为功能选择触摸区域和程序选择触摸区域，触摸屏连接控制单元，用户根据需要及触摸屏上的提示，选择和操作所需要的功能或程序，进而完成全部所需作业。根据触摸控制方法不同，目前普遍采用的触摸屏基本上分为两种，一种是电容式触摸屏，另一种是电阻式触摸屏。At present, touch screens are generally used as display and operating devices in various fields such as household appliances. The touch screen is basically divided into a function selection touch area and a program selection touch area. The touch screen is connected to the control unit. The required function or program, and then complete all required operations. According to different touch control methods, currently generally used touch screens are basically divided into two types, one is a capacitive touch screen, and the other is a resistive touch screen.
对于电容式触摸屏，当手指触摸在屏上时，由于人体电场，用户和触摸屏表面形成一个耦合电容，对于高频电流来说，电容是直接导体，于是手指从接触点吸走一个很小的电流，这个电流分从触摸屏的四角上的电极中流出，并且流经这四个电极的电流与手指到四角的距离成正比，控制单元通过对这四个电流比例的精确计算，得出触摸点的位置。For a capacitive touch screen, when a finger touches the screen, due to the electric field of the human body, a coupling capacitor is formed between the user and the surface of the touch screen. For high-frequency current, the capacitor is a direct conductor, so the finger absorbs a small current from the contact point , this current flows out from the electrodes on the four corners of the touch screen, and the current flowing through these four electrodes is proportional to the distance from the finger to the four corners. Location.
对于电阻式触摸屏，当手指接触屏幕时，平常相互绝缘的两层导电层就在触摸点位置有了一个接触，使得电压由零变成非零，这种接触状态被控制单元检测到后，进行A/D转换，并将得到的电压值与标准值相比得到触摸点的坐标。For a resistive touch screen, when a finger touches the screen, the two layers of conductive layers that are usually insulated from each other have a contact at the touch point, making the voltage change from zero to non-zero. After this contact state is detected by the control unit, the A/D conversion, and compare the obtained voltage value with the standard value to obtain the coordinates of the touch point.
无论是电容式触摸屏还是电阻式触摸屏，都较易受电场等干扰，进而影响其使用效果及检测精度。另外，对于电容式触摸屏，由于人体成为线路中的一部分，因而漂移现象比较严重，而且带手套后就不再起作用，使用受到较大的限制。Whether it is a capacitive touch screen or a resistive touch screen, it is more susceptible to interference such as an electric field, which in turn affects its use effect and detection accuracy. In addition, for the capacitive touch screen, since the human body becomes a part of the circuit, the drift phenomenon is relatively serious, and it will no longer work after wearing gloves, so the use is greatly restricted.
发明内容Contents of the invention
本发明主要目的在于解决上述问题和不足，提供一种不受电场干扰，检测精度高的触摸控制方法。。The main purpose of the present invention is to solve the above problems and deficiencies, and provide a touch control method that is free from electric field interference and has high detection accuracy. .
为实现上述目的，本发明的技术方案是：For realizing the above object, technical scheme of the present invention is:
一种触摸控制方法，在触摸屏单元中设置两个检测单元，两个检测单元分别包括A、B两个检测点，用以检测用户触动触摸屏上的功能或程序选择操作区域而引起的振动，两个检测单元检测振动点传导到所述A、B两个检测点的时间差值和/或时间值，并同时将检测到的数值发送给控制单元；所述控制单元接收到所述检测单元发送过来的数值后，与存储单元中预先存储的标准数值进行对比，找到振动点相对应的坐标信息，从而确定用户操作点的具体位置和相对应的功能或程序，进行相应响应，实现功能或程序设置。A touch control method, in which two detection units are arranged in the touch screen unit, and the two detection units respectively include two detection points A and B to detect the vibration caused by the user touching the function or program selection operation area on the touch screen. A detection unit detects the time difference and/or time value that the vibration point conducts to the two detection points of A and B, and simultaneously sends the detected value to the control unit; the control unit receives the transmission from the detection unit After the value is compared with the standard value pre-stored in the storage unit, the coordinate information corresponding to the vibration point is found, so as to determine the specific position of the user's operation point and the corresponding function or program, and respond accordingly to realize the function or program set up.
本发明的进一步改进在于，所述存储单元中的预先存储数值包括三部分：第一部分是所述A检测点先接收到振动波后所述B检测点再接收到振动波的时间差，以及与此相对应的功能或程序；第二部分是所述B检测点先接收到振动波后所述A检测点再接收到振动波的时间差，以及与此相对应的功能或程序；第三部分是所述A、B两个检测点同时接收到振动波所对应的接收时间值，以及与此相对应的功能或程序。A further improvement of the present invention is that the pre-stored value in the storage unit includes three parts: the first part is the time difference between the detection point A receiving the shock wave and then the detection point B receiving the shock wave, and the The corresponding function or program; the second part is the time difference between the B detection point receiving the vibration wave and then the A detection point receiving the vibration wave, and the corresponding function or program; the third part is the The receiving time value corresponding to the simultaneous reception of vibration waves at the two detection points A and B, and the corresponding function or program.
所述存储单元中各个功能或程序选择操作区域到A、B两个检测点的传输时间为根据操作区域的大小设置的一个数值范围。The transmission time from each function or program selection operation area in the storage unit to the two detection points A and B is within a numerical range set according to the size of the operation area.
将所述A、B两个检测点形成一条线段，于此线段中心处假设一垂直线作为分界线，此分界线将整个触摸屏分成分界线左侧、分界线右侧、分界线上三部分；将所述触摸屏上位于所述分界线左侧和分界线右侧的操作点采用对比时间差的方式予以区分，而对位于所述分界线上的操作点采用对比时间值的方式予以区分。The two detection points of A and B are formed into a line segment, and a vertical line is assumed as a dividing line at the center of the line segment, and this dividing line divides the entire touch screen into three parts: the left side of the dividing line, the right side of the dividing line, and the dividing line; The operation points on the touch screen on the left side of the boundary line and the right side of the boundary line are distinguished by comparing time differences, and the operation points on the boundary line are distinguished by comparing time values.
当用户触动所述分界线左侧或分界线右侧的操作区域时，在检测到触动后所述两个检测单元分别开始计时，首先接收到振动波的检测点，则之前的计时清零重新开始计时，直到另一个检测点接收到振动后计时停止，这个时间值即为振动点到A、B两个检测点的传输时间差值，将此时间差值与检测点先接收到振动波的信息同时发送给所述控制单元；当用户触动所述分界线上的操作区域时，A、B两个检测点同时接收到振动波，则将触动开始到接收止的时间值发送给所述控制单元，同时发给所述控制单元的信息有A、B两个检测点同时接收到振动波。When the user touches the operation area on the left side of the boundary line or on the right side of the boundary line, the two detection units start timing respectively after the touch is detected, and when the detection point of the vibration wave is first received, the previous timing is reset to zero. Start timing until the other detection point receives the vibration and stop the timing. This time value is the transmission time difference from the vibration point to the two detection points A and B. This time difference is compared with the time when the vibration wave was first received by the detection point. The information is sent to the control unit at the same time; when the user touches the operation area on the boundary line, the two detection points A and B receive vibration waves at the same time, and the time value from the start of the touch to the end of the reception is sent to the control unit. unit, the information sent to the control unit at the same time includes two detection points A and B receiving vibration waves at the same time.
在所述控制单元中设置有自我校准模块，用于在使用一段时间后，重新校准存储单元中的标准数值，下一次使用时，所述控制单元将与所述存储单元中储存的新数值进行对比。A self-calibration module is provided in the control unit, which is used to recalibrate the standard value in the storage unit after a period of use, and the next time the control unit will use the new value stored in the storage unit. Compared.
所述自我校准的步骤为，进入自我校准模式后，用户分别触碰所述触摸屏上的各个功能或程序的操作区域，所述两个检测单元将检测到的时间值和时间差值重新输入到所述存储单元中进行存储，即得新的标准数值。The self-calibration step is that after entering the self-calibration mode, the user respectively touches the operation area of each function or program on the touch screen, and the two detection units re-input the detected time value and time difference into the Store in the storage unit to obtain a new standard value.
检测传导到所述A、B两个检测点的时间必须以两个检测点第一次接收的时间为准。The time when the detection is transmitted to the two detection points A and B must be based on the first reception time of the two detection points.
若两个检测单元中只有一个检测点接收到振动波，而另一个检测点未接收到振动波，则判为失效，不进行后续判断。If only one detection point of the two detection units receives the vibration wave, but the other detection point does not receive the vibration wave, it will be judged as failure and no subsequent judgment will be made.
综上内容，本发明所述的一种触摸控制方法，在触摸屏单元中设置了两个检测单元，用以检测操作点的振动，通过检测振动点传导到所述A、B两个检测点的时间值和/或时间差来确定操作点的坐标，进而确定用户操作点的具体位置和相对应的功能或程序，该方法完全实现了振动检测的触摸方式，避免了受电场等干扰的影响，检测精度高，而且用户不受是否带手套操作的限制，使用非常方便。To sum up, in the touch control method described in the present invention, two detection units are set in the touch screen unit to detect the vibration of the operating point, and the detected vibration point is transmitted to the two detection points A and B. Time value and/or time difference to determine the coordinates of the operating point, and then determine the specific location of the user's operating point and the corresponding function or program. The precision is high, and the user is not limited by whether to wear gloves or not, so it is very convenient to use.
另外，本发明还具有自我校准功能，进一步提高了触摸屏的响应灵敏度，避免由于长时间使用导致的触摸屏材料变形而引起的操作点至检测单元位置出现偏差的问题。In addition, the present invention also has a self-calibration function, which further improves the response sensitivity of the touch screen and avoids the problem of deviation from the operating point to the position of the detection unit caused by the deformation of the touch screen material caused by long-term use.
附图说明Description of drawings
图1本发明结构示意图；Fig. 1 structural representation of the present invention;
图2本发明触摸屏示意图；Fig. 2 schematic diagram of the touch screen of the present invention;
图3本发明操作流程图。Fig. 3 is a flowchart of the operation of the present invention.
具体实施方式detailed description
下面结合附图与具体实施方式对本发明作进一步详细描述：Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
本实施例中，以洗衣机触摸控制屏为例，针对该触摸控制方法进行详细描述。In this embodiment, the touch control method of a washing machine is described in detail by taking the touch control screen of a washing machine as an example.
如图1所示，本发明所述的触摸方法中，触摸板主要包含：触摸屏单元、存储单元及控制单元，触摸屏单元又包含功能或程序选择的操作区域和两个检测单元。As shown in Figure 1, in the touch method of the present invention, the touch panel mainly includes: a touch screen unit, a storage unit and a control unit, and the touch screen unit further includes an operation area for function or program selection and two detection units.
其中，如图2所示，两个检测单元分别包括A、B两个检测点，用以检测用户触动触摸屏上功能或程序选择操作区域而引起的振动，两个检测单元检测振动点传导到所述A、B两个检测点的时间值和/或时间差值，并同时将检测到的数值发送给控制单元。Among them, as shown in Figure 2, the two detection units include two detection points A and B respectively, which are used to detect the vibration caused by the user touching the function or program selection operation area on the touch screen. The time value and/or time difference of the two detection points A and B are described above, and the detected value is sent to the control unit at the same time.
控制单元接收到所述两个检测单元发送过来的数值后，与存储单元中预先存储的标准数值进行对比，找到振动点相对应的坐标信息，从而确定用户操作点的具体位置和相对应的功能或程序，进行相应响应，实现功能或程序设置。After the control unit receives the values sent by the two detection units, it compares them with the standard values pre-stored in the storage unit to find the coordinate information corresponding to the vibration point, so as to determine the specific position of the user's operation point and the corresponding function Or program, respond accordingly, realize function or program setting.
采用这种振动检测的触摸控制方式，避免了受电场等的干扰，检测精度高，而且只要是触动触摸屏产生振动，即可检测，不受触动的手段和工具限制，使用极为方便。Adopting this vibration detection touch control method avoids the interference of electric field, etc., and the detection accuracy is high, and as long as the touch screen is touched to generate vibration, it can be detected, and it is not limited by the means and tools of the touch, and it is extremely convenient to use.
根据不同的振动点到A、B两个检测点的传播距离及传播的时间不同，将存储单元中的预先存储的数值细分为三个部分，以便提高检测速度和精度。According to different propagation distances and propagation times from different vibration points to two detection points A and B, the pre-stored values in the storage unit are subdivided into three parts in order to improve detection speed and accuracy.
第一部分是所述A检测点先接收到振动波后所述B检测点再接收到振动波的时间差，以及与此相对应的功能或程序；The first part is the time difference between the A detection point first receiving the vibration wave and then the B detection point receiving the vibration wave, and the corresponding function or program;
第二部分是所述B检测点先接收到振动波后所述A检测点再接收到振动波的时间差，以及与此相对应的功能或程序；The second part is the time difference between the detection point B first receiving the vibration wave and then the detection point A receiving the vibration wave, and the corresponding function or program;
第三部分是所述A、B两个检测点同时接收到振动波所对应的接收时间值(非时间差)，以及与此相对应的功能或程序。The third part is the receiving time value (not time difference) corresponding to the simultaneous reception of vibration waves at the two detection points A and B, and the corresponding function or program.
因为用户在触摸屏上的操作点并不是一个点，而是一个区域，所以，在存储单元中，各个功能或程序选择操作的区域位置到A、B两个检测点的传输时间，必须根据操作区域的大小设置一个范围，这个范围可预先根据触摸屏的实际情况进行设置，存储到存储单元中，这样，不但可以提高使用的方便性，同时还可以降低用户的操作难度。Because the user's operation point on the touch screen is not a point, but an area, so in the storage unit, the transmission time from the area position of each function or program selection operation to the two detection points A and B must be determined according to the operation area. A range can be set according to the size of the touch screen. This range can be set in advance according to the actual situation of the touch screen and stored in the storage unit. In this way, not only the convenience of use can be improved, but also the difficulty of the user's operation can be reduced.
如图2所示，将A、B两个检测点形成一条水平的线段，本实施例中，是将A、B两个检测点设置在触摸屏的右上角和左上角处，当然也可以设置触摸屏的中间两侧或是左右下角的其它位置。As shown in Figure 2, the two detection points A and B form a horizontal line segment. In this embodiment, the two detection points A and B are set at the upper right corner and upper left corner of the touch screen. Of course, a touch screen can also be set The middle sides of the , or other positions in the left and right lower corners.
在A、B两个检测点形成的线段中心处，假设一垂直线作为分界线，此分界线将整个触摸屏分成三个部分，分别为分界线左侧、分界线右侧及分界线上。At the center of the line segment formed by the two detection points A and B, assume a vertical line as the dividing line, which divides the entire touch screen into three parts, namely the left side of the dividing line, the right side of the dividing line and the dividing line.
由图2中可见，触动分界线左侧的功能或程序选择操作区域(如1、2点等)时，振动波将先抵达A检测点；而触动分界线右侧的功能或程序选择操作区域(如5、6点等)时，振动波将先抵达B检测点；触动分界线上的功能或程序选择操作区域时(如3、4点等)，振动波将同时抵达A、B两个检测点，但是分别触动3、4区域，抵达两点的时间却不同。It can be seen from Figure 2 that when the function or program selection operation area (such as 1, 2, etc.) on the left side of the boundary line is touched, the vibration wave will first reach the A detection point; while the function or program selection operation area on the right side of the boundary line is touched (such as 5, 6, etc.), the vibration wave will reach the B detection point first; when the function or program selection operation area on the boundary line is touched (such as 3, 4 points, etc.), the vibration wave will reach both A and B at the same time. The detection point, but the time to reach the two points is different when touching areas 3 and 4 respectively.
所以，该控制方法中，对于触摸屏上位于分界线左侧和分界线右侧的操作点，采用对比时间差的方式予以区分；而对位于分界线上的操作点，则采用对比时间值的方式予以区分。Therefore, in this control method, the operating points on the touch screen located on the left side of the dividing line and the right side of the dividing line are distinguished by comparing the time difference; and the operating points located on the dividing line are distinguished by comparing the time value. distinguish.
由于振动波传播过程中，遇到其它物体(如边缘)的阻止时，振动波会反射回来，所以，检测传播到A、B两个检测点的时间必须以两个检测点第一次接收的时间为准，以进一步提高检测精度。Since the vibration wave will be reflected back when it is blocked by other objects (such as edges) during the propagation process of the vibration wave, the time for the detection to propagate to the two detection points A and B must be based on the time of the first reception of the two detection points. The time shall prevail to further improve the detection accuracy.
若A、B两个检测点中，只有其中一个检测点接收到振动波，而另一个检测点未接收到振动波，则判为失效，不进行后续判断，避免误动作。If only one of the detection points A and B receives the vibration wave, but the other detection point does not receive the vibration wave, it will be judged as failure, and no follow-up judgment will be made to avoid misoperation.
如图3所示，具体检测步骤如下：As shown in Figure 3, the specific detection steps are as follows:
(1)洗衣机上电开机。(1) The washing machine is powered on and turned on.
(2)用户触动功能或程序操作单元，选择所需要的功能或程序。(2) The user touches the function or program operation unit to select the desired function or program.
(3)两个检测单元检测到触动，开始计时。(3) The two detection units detect the touch and start timing.
(4)当用户触动分界线左侧的操作区域时，在检测到触动后，两个检测单元开始计时，若A检测点首先接收到振动波，则之前的计时清零重新开始计时，直到B检测点接收到振动后计时停止，这个时间值即为振动点到A、B两个检测点的传播时间差值，将此时间差值与A检测点先接收到振动波的信息同时发送给控制单元。(4) When the user touches the operation area on the left side of the dividing line, after the touch is detected, the two detection units start timing. If the A detection point receives the vibration wave first, the previous timing is reset to zero and restarts timing until B After the detection point receives the vibration, the timing stops. This time value is the difference in propagation time from the vibration point to the two detection points A and B. This time difference and the information that the detection point A first received the vibration wave are sent to the control at the same time. unit.
当用户触动分界线右侧的操作区域时，在检测到触动后所述个检测单元开始计时，若B检测点首先接收到振动波，则之前的计时清零重新开始计时，直到A检测点接收到振动后计时停止，这个时间值即为振动点到A、B两个检测点的传播时间差值，将此时间差值与B检测点先接收到振动波的信息同时发送给控制单元；When the user touches the operation area on the right side of the dividing line, the first detection unit starts timing after the touch is detected. If the B detection point receives the vibration wave first, the previous timing is reset to zero and restarts the timing until the A detection point receives the vibration wave. After the vibration, the timing stops. This time value is the difference in propagation time from the vibration point to the two detection points A and B. This time difference and the information that the B detection point first receives the vibration wave are sent to the control unit at the same time;
当用户触动分界线上的操作区域时，A、B两个检测点同时接收到振动波，则将触动开始到接收止的时间值发送给控制单元，同时发给控制单元的信息有A、B两个检测点同时接收到振动波。When the user touches the operation area on the boundary line, the two detection points A and B receive vibration waves at the same time, and then send the time value from the start of the touch to the reception to the control unit, and the information sent to the control unit at the same time includes A and B Two detection points receive vibration waves at the same time.
(5)控制单元将接收到的数据与存储单元中预先存储的数据进行对比，对比后找到相对应的坐标信息，从而确定用户操作点的具体位置和相对应的功能或程序。(5) The control unit compares the received data with the pre-stored data in the storage unit, and finds the corresponding coordinate information after the comparison, so as to determine the specific position of the user's operation point and the corresponding function or program.
(6)功能或程序响应，实现用户的设置要求，洗衣机按用户设定的功能或程序运行，完成全部的洗衣作业。(6) The function or program responds to realize the setting requirements of the user, and the washing machine runs according to the function or program set by the user to complete all the laundry operations.
为提高触摸屏的响应灵敏度，避免由于长时间使用导致的触摸屏材料变形而引起的操作点至检测单元位置出现偏差的问题，本实施例在控制单元中设置自我校准模块，触摸屏上也相应设置有显示区域，用户或通过操作此区域进入自我校准模式，用户按照提示信息进行操作。In order to improve the response sensitivity of the touch screen and avoid the problem of deviation from the operation point to the position of the detection unit caused by the deformation of the touch screen material caused by long-term use, this embodiment sets a self-calibration module in the control unit, and a display is also set on the touch screen area, the user enters the self-calibration mode by operating this area, and the user operates according to the prompt information.
用户按照提示信息，分别触碰各个功能或程序选择操作区域的操作点，两个检测单元将检测到的时间值和时间差值重新输入到存储单元中进行存储，检测时间值和时间差值的方法同上所述，全部数据存储完成后，自动退出自我校准模式，下一次使用时，控制单元将与存储单元中储存的新数据进行对比。According to the prompt information, the user touches the operation point of each function or program selection operation area respectively, and the two detection units re-input the detected time value and time difference value into the storage unit for storage, and detect the time value and time difference value. The method is the same as above, after all the data is stored, it will automatically exit the self-calibration mode, and the control unit will compare it with the new data stored in the storage unit when it is used next time.
如上所述，结合附图所给出的方案内容，可以衍生出类似的技术方案。但凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明技术方案的范围内。As mentioned above, a similar technical solution can be derived in combination with the content of the solution given in the accompanying drawings. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention are still within the scope of the technical solutions of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010598549.7ACN102169385B (en) | 2010-12-21 | 2010-12-21 | A kind of method of toch control |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010598549.7ACN102169385B (en) | 2010-12-21 | 2010-12-21 | A kind of method of toch control |
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| CN102169385A CN102169385A (en) | 2011-08-31 |
| CN102169385Btrue CN102169385B (en) | 2016-07-20 |
| Application Number | Title | Priority Date | Filing Date |
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| CN201010598549.7AActiveCN102169385B (en) | 2010-12-21 | 2010-12-21 | A kind of method of toch control |
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