CN107850496A - A kind of pressure detecting system, module and method - Google Patents
A kind of pressure detecting system, module and method Download PDFInfo
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- CN107850496A CN107850496A CN201680000580.1A CN201680000580A CN107850496A CN 107850496 A CN107850496 A CN 107850496A CN 201680000580 A CN201680000580 A CN 201680000580A CN 107850496 A CN107850496 A CN 107850496A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
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Abstract
A kind of pressure detecting system (1), including switch handover module (11), sampling module (12), analog-to-digital conversion module (13) and digital control and processing module (14), the switch handover module (11) gathers the pressure signal of each pressure sensing channel by analog switch, the sampling module (12) samples to the pressure signal of collection, sampled signal is converted to by data signal by D/A converter module (13) and gives digital control and processing module (14), it is digital control that data are calculated as pressure value with processing module (14), the digital control touch location that touch screen control system (3) transmission is received with processing module (14), and an at least pressure sensing channel of the sampling module (12) associated by the touch location is made to be sampled.A kind of pressure detecting module and pressure detection method are further related to, the signal to noise ratio of pressure detecting is improved, reduces power consumption, and add refresh rate.
Description
This application involves technical field of pressure detection, in particular to a kind of detection system, mould group and method for improving pressure detecting signal-to-noise ratio.
Referring to Fig. 1, pressure sense die is made of pressure detecting system 1 and press detection sensor 2, and press detection sensor 2 has N number of pressure sensing channel, and N is natural number (C0, C1 ..., CN).Each pressure sensing channel is responsible for a certain pocket in entire pressure plane to be checked.Pressure detecting system 1 includes switching module 11, sampling module 12, analog-to-digital conversion module 13 and digital control and processing module 14, the switching module 11 acquires the pressure signal of each pressure sensing channel by analog switch, the pressure signal of 12 pairs of sampling module acquisitions samples, sampled signal is converted into digital signal by D/A converter module 13 and gives digital control and processing module 14, it is digital control that data are calculated as pressure value with processing module 14.
Referring to fig. 2, by taking nine channel pressure detection sensors as an example, the corresponding correlation pressure detection zone of each node, i.e. node 0, node 1, node 2 ..., node 8, (C0, C1 ..., CN).9 pressure sensing channels of 9 node corresponding pressures detection sensor 2.It scans the opposite dark block of color in the timing diagram 3 of a frame data and represents the pressure sensing channel that current time is sampling, the opposite light block of color represents the pressure sensing channel of free time at current time in Fig. 3.Since signal-to-noise ratio is the important indicator of pressure sense die, if to improve the signal-to-noise ratio of pressure detecting, the timing of a frame data is scanned referring to fig. 4.It follows that increasing the sampling time of each pressure sensing channel to improve the signal-to-noise ratio of pressure detecting, sampling is caused also exponentially to increase total time, this will certainly largely increase power consumption and reduce refresh rate.
Summary of the invention
In view of the above problems, the application provides detection system, mould group and the method for a kind of raising pressure detecting signal-to-noise ratio for overcoming the above problem or at least being partially solved the above problem.
According to the first aspect of the application, provide a kind of pressure detecting system, including switching module, sampling module, analog-to-digital conversion module and digital control and processing module, the switching module acquires the pressure signal of pressure sensing channel by analog switch, the sampling module carries out sampling to the pressure signal of acquisition and obtains sampled signal, the sampled signal is converted into digital signal by D/A converter module and gives digital control and processing module, the digital signal is calculated as pressure value by described digital control and processing module, the digital control touch location that touch screen control system transmission is received with processing module, the sampling module is enabled to be sampled for an at least pressure sensing channel associated by the touch location.
According to the second aspect of the application, provide a kind of pressure detecting mould group, including press detection sensor and pressure detecting system, the pressure detecting system receives the pressure signal of pressure sensing channel in the press detection sensor, it is characterized in that, the pressure detecting system receives the touch location that touch screen control system is sent；It is sampled for pressure sensing channel associated by the touch location.
In terms of according to the third of the application, a kind of pressure detection method is provided, comprising:
Receive the touch location that touch screen control system is sent；
It is sampled for pressure sensing channel associated by the touch location.
According to the pressure detecting system of the application, mould group and method, sampled by receiving touch location caused by the touch panel sensor that touch screen control system is sent, and for pressure sensing channel associated by the touch location.Therefore, the application is without sampling whole pressure sensing channels, it only needs at least a pressure sensing channel samples associated by touch location, within the same sampling period, increase the sampling time of pressure sensing channel associated by touch location, the signal-to-noise ratio for improving pressure detecting reduces power consumption and increases refresh rate.
Above description is only the general introduction of technical scheme, in order to better understand the skill of the application
Art means, and can be implemented in accordance with the contents of the specification, and in order to allow above and other objects, features and advantages of the application can be more clearly understood, spy lifts the specific embodiment of the application below.
By reading the following detailed description of the preferred embodiment, various other advantages and benefits will become apparent to those of ordinary skill in the art.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as the limitation to the application.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 shows the structural schematic diagram of existing pressure detecting mould group；
Fig. 2 shows the floor map to be checked of nine channel pressure sensors；
Fig. 3 shows the timing that existing pressure detecting mould group scans a frame data；
It is the timing for improving signal-to-noise ratio and scanning a frame data that Fig. 4, which shows existing pressure detecting mould group,；
Fig. 5 shows the structural schematic diagram of an embodiment of the application pressure detecting system；
Fig. 6 shows the pressure floor map to be checked of an embodiment of the application pressure detecting system；
The digital control and processing module that Fig. 7 shows an embodiment of the application pressure detecting system judges whether the coordinate (X, Y) falls into the flow chart of 0 correlation pressure detection zone of node；
Fig. 8 shows the schematic diagram of the digital control and processing module sampling of an embodiment of the application pressure detecting system；
Fig. 9 shows the schematic diagram of the digital control and processing module sampling of another embodiment of the application pressure detecting system；
Figure 10 shows the pressure floor map to be checked of the another embodiment of the application pressure detecting system；
Figure 11 shows the pressure floor map to be checked of the another embodiment of the application pressure detecting system；
Figure 12 shows the schematic diagram of the digital control and processing module sampling of the another embodiment of the application pressure detecting system；
Figure 13 shows the schematic diagram of the digital control and processing module sampling of the another embodiment of the application pressure detecting system；
Figure 14 shows the pressure floor map to be checked of the another embodiment of the application pressure detecting system；
Figure 15 shows the schematic diagram of the digital control and processing module sampling of the another embodiment of the application pressure detecting system；
Figure 16 shows the schematic diagram of the digital control and processing module sampling of the another embodiment of the application pressure detecting system；
Figure 17 shows the structural schematic diagrams of an embodiment of the application pressure detecting mould group；
Figure 18 shows the flow chart of an embodiment of the application pressure detection method；
Figure 19 shows the flow chart of another embodiment of the application pressure detection method；
Figure 20 shows the flow chart of another embodiment of the application pressure detection method.
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the exemplary embodiment of the disclosure in attached drawing, it being understood, however, that may be realized in various forms the disclosure and should not be limited by the embodiments set forth herein.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and the scope of the present disclosure can be fully disclosed to those skilled in the art.
Referring to Fig. 5, this application provides a kind of pressure detecting systems 1, including switching module 11, sampling module 12, analog-to-digital conversion module 13 and digital control and processing module 14, the switching module 11 acquires the pressure signal of each pressure sensing channel by analog switch, the pressure signal of 12 pairs of sampling module acquisitions samples, sampled signal is converted into digital signal by analog-to-digital conversion module 13 and gives digital control and processing module 14, it is digital control that the digital signal is calculated as pressure value with processing module 14.
The digital control touch location that the transmission of touch screen control system 3 is received with processing module 14, enables the sampling module 12 be sampled for an at least pressure sensing channel associated by the touch location.
In the application one in the specific implementation, the touch panel sensor 4 generates touch information, it is sent to institute
It states touch screen control system 3 and obtains touch location, the touch location is sent to described digital control and processing module 14 by digital channel D1 by the touch screen control system 3.
Specifically, touch location can be two-dimensional plane coordinate (X, Y).Touch location can also indicate the coordinate representation of touch location, such as polar coordinates using other.
Referring to Fig. 6, pressure plane to be checked includes N number of node, and the corresponding correlation pressure detection zone of each node, N is natural number, i.e. node 0, node 1, node 2 ..., node N, (C0, C1 ..., CN).N number of pressure sensing channel of N number of node corresponding pressure detection sensor 2.
Described digital control and processing module 14 judges the coordinate (X, Y the node correlation pressure detection zone) fallen into, such as the coordinate (X, Y the correlation pressure detection zone of a node) is fallen into, then the digital control pressure sensing channel for enabling the sampling module 12 be directed to the node with processing module 14 is sampled.
For example, described digital control and processing module 14 can successively judge one by one whether the coordinate (X, Y) falls into the correlation pressure detection zone of above-mentioned node from node 0 to node N.
The application can also take other modes to judge the coordinate (X, Y the correlation pressure detection zone of node 0 to node N) whether is fallen into, for example first judge node 1, the correlation pressure detection zone of the odd nodes such as node 3, node 0, node 2, the correlation pressure detection zone of the even-numbered nodes such as node 4 are judged again.
Referring to Fig. 7, described digital control and processing module 14 judges that the step of whether coordinate (X, Y) falls into 0 correlation pressure detection zone of node includes:
The length a0, width b0 of A1, the centre coordinate (X0, Y0) for obtaining the 0 correlation pressure detection zone of node and correlation pressure detection zone.
The centre coordinate (X0, Y0) of the 0 correlation pressure detection zone of node and the length a0 of correlation pressure detection zone, width b0 can be configured from the factory of pressure sense die and be obtained, and different parameters is configured for different types.
A2, judge whether the coordinate (X, Y) meets condition 1 simultaneously) to 4)；
1)X>x0-a0/2
2)X<x0+a0/2
3)Y>y0-b0/2
4)Y<y0+b0/2
A3, such as described coordinate (X, Y) meet condition 1 simultaneously) to 4), then coordinate (the X, Y the correlation pressure detection zone of the node 0 (C0)) is fallen into, otherwise, the coordinate (X, Y) does not fall within the correlation pressure detection zone of the node 0.
The application judges the coordinate (X, Y the correlation pressure detection zone of the node) fallen into, and using the correlation pressure detection zone of the node fallen into as the touch location in pressure plane to be checked, the corresponding pressure sensing channel of the node is as pressure sensing channel associated by touch location.
Described digital control and processing module 14 gives pressure sensing channel information associated by the touch location to the sampling module 12 by digital channel D2, and the sampling module 12 is enabled to be sampled for pressure sensing channel associated by the touch location.
Therefore, the application is without sampling whole pressure sensing channels, it only needs to sample pressure sensing channel associated by touch location, within the same sampling period, increase the sampling time of pressure sensing channel associated by touch location, the signal-to-noise ratio for improving pressure detecting reduces power consumption, and increases refresh rate.
In another specific implementation of the application, the digital control touch information for being also used to be sent according to the touch screen control system with processing module 14, determine that with the presence or absence of touch signal, touch signal is such as not present, the sampling module 12 is without being sampled in pressure plane to be checked.
The application avoids pressure plane to be checked there is no touch information, then for pressure plane to be checked sampled caused by unnecessary power consumption.
In the application further implements, referring to Fig. 8, if there is three pressure sensing channels associated by touch location, described digital control and processing module 14 is during the sampling period, for each pressure sensing channel associated by the touch location, repeat to sample.
The application during the sampling period, for pressure sensing channel associated by touch location, repeats to sample, and within the same sampling period, increases the sampling time of each pressure sensing channel associated by touch location.To improve the signal-to-noise ratio of pressure detecting, reduce power consumption and increase refresh rate.
In the application further implements, referring to Fig. 9, if there is three pressure sensing channels associated by touch location, during the sampling period, the sampling time of pressure sensing channel associated by the touch location is extended described digital control and processing module 14 relative to its former sampling time.
During the sampling period, the time that extension pin samples pressure sensing channel associated by the touch location increases the sampling time of pressure sensing channel associated by touch location within the same sampling period to the application.To improve the signal-to-noise ratio of pressure detecting, reduce power consumption and increase refresh rate.
The pressure detecting system of the application is further illustrated below by a specific implementation.
Referring to Figure 10, herein described pressure plane to be checked includes 9 nodes, the corresponding correlation pressure detection zone of each node, i.e. node 0, node 1, node 2 ..., node 8, (C0, C1 ..., CN).9 pressure sensing channels of 9 node corresponding pressures detection sensor 2.
Please referring back to Fig. 5, the coordinate (X, Y) of touch location produced by the touch screen control module 3, and the coordinate (X, Y) is given to described digital control and processing module 14 by digital channel D1.
The digital control length a0, width b0 that pressure detecting region associated by the centre coordinate (X0, Y0) and the node 0 in pressure detecting region associated by the node 0 is obtained with processing module 14.
The centre coordinate (X0, Y0) and length a0 of the correlation pressure detection zone of the node 0, width b0 can be configured from the factory of pressure sense die and be obtained, and different parameters is configured for different types.
Judge whether the coordinate (X, Y) meets condition 1 simultaneously) to 4).
1)X>x0-a0/2
2)X<x0+a0/2
3)Y>y0-b0/2
4)Y<y0+b0/2
As the coordinate (X, Y) meets condition 1 simultaneously) to 4), then coordinate (the X, Y the correlation pressure detection zone of the node 0) is fallen into, otherwise, the coordinate (X, Y) does not fall within the correlation pressure detection zone of the node 0.
Successively judge whether the coordinate (X, Y) falls into the correlation pressure detection zone of node 1 to node 8, the coordinate (X, Y) falls into the corresponding pressure sensing channel of node of its correlation pressure detection zone
As pressure sensing channel associated by touch location.
Referring to Figure 11, in the specific implementation of the application one, when the touch location of finger is region 1, coordinate (the X, Y the correlation pressure detection zone of the node 4, node 5, node 7 and node 8) is fallen into, the node 4, node 5, node 7 and the corresponding pressure sensing channel of node 8 are as pressure sensing channel associated by touch location.
Described digital control and processing module 14 notifies the sampling module 12 by digital channel D2, is sampled for the node 4, node 5, node 7 and node 8.
Referring to Figure 12, the sampling module 12 during the sampling period, for the node 4, node 5, node 7 and node 8, repeats to sample.Alternatively,
During the sampling period referring to sampling module 12 described in Figure 15, the sampling time of the node 4, node 5, node 7 and node 8 is extended relative to its former sampling time.
Therefore, the application is without sampling whole pressure sensing channels, it only needs to sample each pressure sensing channel associated by touch location, within the same sampling period, increase the sampling time of each pressure sensing channel associated by touch location, the signal-to-noise ratio of pressure detecting is improved, power consumption is reduced and increases refresh rate.
Referring to Figure 14, in another specific implementation of the application, when finger touch position changes region 2 into from region 1, coordinate (the X, Y the correlation pressure detection zone of the node 0, node 1, node 3 and node 4) is fallen into, the node 0, node 1, node 3 and the corresponding pressure sensing channel of node 4 are as pressure sensing channel associated by touch location.
Described digital control and processing module 14 notifies the sampling module 12 by digital channel D2, is sampled for the node 0, node 1, node 3 and node 4.
During the sampling period referring to sampling module 12 described in Figure 13, for the node 0, node 1, node 3 and node 4, repeat to sample.Alternatively,
Referring to Figure 16, the sampling module 12 during the sampling period, the node 0, node 1, node 3 and node 4 sampling time extended relative to its former sampling time.
Therefore, the application is without sampling whole pressure sensing channels, it only needs to sample pressure sensing channel associated by touch location, within the same sampling period, increase the sampling time of pressure sensing channel associated by touch location, the signal-to-noise ratio for improving pressure detecting reduces power consumption, and
Increase refresh rate.
Referring to Figure 17, this application provides a kind of pressure detecting mould group, including press detection sensor 2 and pressure detecting system 1, the pressure detecting system 1 receives touch location caused by the touch panel sensor 4 that touch screen control system 3 is sent；For at least a pressure sensing channel is sampled associated by the touch location.
Specifically, touch information caused by the touch panel sensor 4, it is sent to the touch screen control system 3, the touch screen control system 3 obtains touch location, and the touch location is sent to the digital control and processing module 14 of the pressure detecting system 1 by digital channel D1.The digital control and processing module 14 of the pressure detecting system 1 is according to the touch location, at least a pressure sensing channel is sampled associated by the touch location.
Referring to Fig. 6, the pressure plane to be checked includes N number of node, and the corresponding correlation pressure detection zone of each node, N is natural number, i.e. node 0, node 1, node 2 ..., node N, (C0, C1 ..., CN).N number of pressure sensing channel of N number of node corresponding pressure detection sensor 2.
Described digital control and processing module 14 judges the coordinate (X, Y the node correlation pressure detection zone) fallen into, such as the coordinate (X, Y the correlation pressure detection zone of a node) is fallen into, then the digital control pressure sensing channel for enabling the sampling module 12 be directed to the node with processing module 14 is sampled.
For example, described digital control and processing module 14 can successively judge one by one whether the coordinate (X, Y) falls into the correlation pressure detection zone of above-mentioned node from node 0 to node N.
The application can also take other modes to judge the coordinate (X, Y the correlation pressure detection zone of node 0 to node N) whether is fallen into, for example first judge node 1, the correlation pressure detection zone of the odd nodes such as node 3, node 0, node 2, the correlation pressure detection zone of the even-numbered nodes such as node 4 are judged again.
Referring to Fig. 7, described digital control and processing module 14 judges that the step of whether coordinate (X, Y) falls into 0 correlation pressure detection zone of node includes:
The length a0, width b0 of A1, the centre coordinate (X0, Y0) for obtaining the 0 correlation pressure detection zone of node and correlation pressure detection zone.
The centre coordinate (X0, Y0) of the 0 correlation pressure detection zone of node and the length a0 of correlation pressure detection zone, width b0 can be configured from the factory of pressure sense die and be obtained, and different parameters is configured for different types.
A2, judge whether the coordinate (X, Y) meets condition 1 simultaneously) to 4)；
1)X>x0-a0/2
2)X<x0+a0/2
3)Y>y0-b0/2
4)Y<y0+b0/2
A3, such as described coordinate (X, Y) meet condition 1 simultaneously) to 4), then coordinate (the X, Y the correlation pressure detection zone of the node 0 (C0)) is fallen into, otherwise, the coordinate (X, Y) does not fall within the correlation pressure detection zone of the node 0.
The application judges the coordinate (X, Y the correlation pressure detection zone of the node) fallen into, and using the correlation pressure detection zone of the node fallen into as the touch location in pressure plane to be checked, the corresponding pressure sensing channel of the node is as pressure sensing channel associated by touch location.
Described digital control and processing module 14 gives pressure sensing channel information associated by the touch location to the sampling module 12 by digital channel D2, and the sampling module 12 is enabled to be sampled for pressure sensing channel associated by the touch location.
Therefore, the application is without sampling whole pressure sensing channels, it only needs to sample pressure sensing channel associated by touch location, within the same sampling period, increase the sampling time of pressure sensing channel associated by touch location, the signal-to-noise ratio for improving pressure detecting reduces power consumption, and increases refresh rate.
In another specific implementation of the application, the pressure detecting system 1 is also used to the touch information sent according to the touch screen control system, determine that with the presence or absence of touch signal, touch signal is such as not present, the sampling module 12 is without being sampled in pressure plane to be checked.
The application avoids pressure plane to be checked there is no touch information, then for pressure plane to be checked sampled caused by unnecessary power consumption.
Another in the specific implementation, referring to Fig. 8 in the application, if there is three pressure sensing channels associated by touch location, the pressure detecting system 1 during the sampling period, for each pressure sensing channel associated by the touch location, repeats to sample.
The application during the sampling period, for pressure sensing channel associated by the touch location, repeats to sample, and within the same sampling period, increases the sampling time for touching each pressure sensing channel associated by out position.To improve the signal-to-noise ratio of pressure detecting, reduce power consumption and increase refresh rate.
In the application further implements, referring to Fig. 9, if there is three pressure sensing channels associated by touch location, during the sampling period, the sampling time of pressure sensing channel associated by the touch location is extended the pressure detecting system 1 relative to its former sampling time.
During the sampling period, the time that extension pin samples pressure sensing channel associated by the touch location increases the sampling time of pressure sensing channel associated by touch location within the same sampling period to the application.To improve the signal-to-noise ratio of pressure detecting, reduce power consumption and increase refresh rate.
The pressure detecting mould group of the application is further illustrated below by a specific implementation.
Referring to Figure 10, herein described pressure plane to be checked includes 9 nodes, the corresponding correlation pressure detection zone of each node, i.e. node 0, node 1, node 2 ..., node 8, (C0, C1 ..., CN).9 pressure sensing channels of 9 node corresponding pressures detection sensor 2.
Referring to Fig. 5, the coordinate (X, Y) of touch location produced by the touch screen control module 3, and the coordinate (X, Y) is given to described digital control and processing module 14 by digital channel D1.
The digital control length a0, width b0 that pressure detecting region associated by the centre coordinate (X0, Y0) and the node 0 in pressure detecting region associated by the node 0 is obtained with processing module 14.
The centre coordinate (X0, Y0) and length a0 of the correlation pressure detection zone of the node 0, width b0 can be configured from the factory of pressure sense die and be obtained, and different parameters is configured for different types.
Judge whether the coordinate (X, Y) meets condition 1 simultaneously) to 4).
1)X>x0-a0/2
2)X<x0+a0/2
3)Y>y0-b0/2
4)Y<y0+b0/2
As the coordinate (X, Y) meets condition 1 simultaneously) to 4), then coordinate (the X, Y the correlation pressure detection zone of the node 0) is fallen into, otherwise, the coordinate (X, Y) does not fall within the correlation pressure detection zone of the node 0.
Successively judge the coordinate (X, Y the correlation pressure detection zone of node 1 to node 8) whether is fallen into, the coordinate (X, Y) falls into the corresponding pressure sensing channel of node of its correlation pressure detection zone as pressure sensing channel associated by touch location.
Referring to Figure 11, in the specific implementation of the application one, when the touch location of finger is region 1, coordinate (the X, Y the correlation pressure detection zone of the node 4, node 5, node 7 and node 8) is fallen into, the node 4, node 5, node 7 and the corresponding pressure sensing channel of node 8 are as pressure sensing channel associated by touch location.
Described digital control and processing module 14 notifies the sampling module 12 by digital channel D2, is sampled for the node 4, node 5, node 7 and node 8.
Referring to Figure 12, the sampling module 12 during the sampling period, for the node 4, node 5, node 7 and node 8, repeats to sample.Alternatively,
During the sampling period referring to sampling module 12 described in Figure 15, the time that extension pin samples the node 4, node 5, node 7 and node 8.
Therefore, the application is without sampling whole pressure sensing channels, it only needs to sample each pressure sensing channel associated by touch location, within the same sampling period, increase the sampling time of each pressure sensing channel associated by touch location, the signal-to-noise ratio of pressure detecting is improved, power consumption is reduced and increases refresh rate.
Referring to Figure 14, in another specific implementation of the application, when finger touch position changes region 2 into from region 1, coordinate (the X, Y the correlation pressure detection zone of the node 0, node 1, node 3 and node 4) is fallen into, the node 0, node 1, node 3 and the corresponding pressure sensing channel of node 4 are as pressure sensing channel associated by touch location.
Described digital control and processing module 14 notifies the sampling module 12, needle by digital channel D2
The node 0, node 1, node 3 and node 4 are sampled.
During the sampling period referring to sampling module 12 described in Figure 13, for the node 0, node 1, node 3 and node 4, repeat to sample.Alternatively,
Referring to Figure 16, the sampling module 12 during the sampling period, the time that extension pin samples the node 0, node 1, node 3 and node 4.
Therefore, the application is without sampling whole pressure sensing channels, it only needs to sample pressure sensing channel associated by touch location, within the same sampling period, increase the sampling time of pressure sensing channel associated by touch location, the signal-to-noise ratio for improving pressure detecting reduces power consumption, and increases refresh rate.
Referring to Figure 18, this application provides a kind of pressure detection methods, comprising:
S1, the touch location that touch screen control system is sent is received.
S2, it is sampled for pressure sensing channel associated by the touch location.
Touch information caused by the touch panel sensor is sent to the touch screen control system, and the touch screen control system obtains touch location, and gives the touch location to described digital control and processing module by digital channel D1.
Referring to Fig. 6, the pressure plane to be checked includes N number of node, and the corresponding correlation pressure detection zone of each node, N is natural number, i.e. node 0, node 1, node 2 ..., node N, (C0, C1 ..., CN).N number of pressure sensing channel of N number of node corresponding pressure detection sensor 2.
Described digital control and processing module 14 judges the coordinate (X, Y the node correlation pressure detection zone) fallen into, such as the coordinate (X, Y the correlation pressure detection zone of a node) is fallen into, then the digital control pressure sensing channel for enabling the sampling module 12 be directed to the node with processing module 14 is sampled.
For example, described digital control and processing module 14 can successively judge one by one whether the coordinate (X, Y) falls into the correlation pressure detection zone of above-mentioned node from node 0 to node N.
The application can also take other modes to judge whether the coordinate (X, Y) falls into node 0 to section
The correlation pressure detection zone of point N, for example first judge node 1, the correlation pressure detection zone of the odd nodes such as node 3, then judge node 0, node 2, the correlation pressure detection zone of the even-numbered nodes such as node 4.
Referring to Fig. 7, described digital control and processing module 14 judges that the step of whether coordinate (X, Y) falls into 0 correlation pressure detection zone of node includes:
The length a0, width b0 of A1, the centre coordinate (X0, Y0) for obtaining the 0 correlation pressure detection zone of node and correlation pressure detection zone.
The centre coordinate (X0, Y0) of the 0 correlation pressure detection zone of node and the length a0 of correlation pressure detection zone, width b0 can be configured from the factory of pressure sense die and be obtained, and different parameters is configured for different types.
A2, judge whether the coordinate (X, Y) meets condition 1 simultaneously) to 4)；
1)X>x0-a0/2
2)X<x0+a0/2
3)Y>y0-b0/2
4)Y<y0+b0/2
A3, such as described coordinate (X, Y) meet condition 1 simultaneously) to 4), then coordinate (the X, Y the correlation pressure detection zone of the node 0 (C0)) is fallen into, otherwise, the coordinate (X, Y) does not fall within the correlation pressure detection zone of the node 0.
The application judges the coordinate (X, Y the correlation pressure detection zone of the node) fallen into, and using the correlation pressure detection zone of the node fallen into as the touch location in pressure plane to be checked, the corresponding pressure sensing channel of the node is as pressure sensing channel associated by touch location.
Described digital control and processing module 14 gives pressure sensing channel information associated by the touch location to the sampling module 12 by digital channel D2, and the sampling module 12 is enabled to be sampled for pressure sensing channel associated by the touch location.
Therefore, the application is without sampling whole pressure sensing channels, it only needs to sample pressure sensing channel associated by touch location, within the same sampling period, increase the sampling time of pressure sensing channel associated by touch location, the signal-to-noise ratio for improving pressure detecting reduces power consumption, and increases refresh rate.
Another in the specific implementation, referring to Fig. 8 in the application, if there is three pressure sensing channels associated by touch location, the step S2 includes: during the sampling period, for pressure sensing channel associated by the touch location, to repeat to sample.
The application during the sampling period, for pressure sensing channel associated by the touch location, repeats to sample, and within the same sampling period, increases the sampling time of each pressure sensing channel associated by touch location.To improve the signal-to-noise ratio of pressure detecting, reduce power consumption and increase refresh rate.
In the application further implements, referring to Fig. 9, if there is three pressure sensing channels associated by touch location, the step S3 includes: that during the sampling period, the sampling time of pressure sensing channel associated by the touch location is extended relative to its former sampling time.
During the sampling period, the time that extension pin samples pressure sensing channel associated by the touch location increases the sampling time of each pressure sensing channel associated by touch location within the same sampling period to the application.To improve the signal-to-noise ratio of pressure detecting, reduce power consumption and increase refresh rate.
Therefore, the application is without sampling whole pressure sensing channels, it only needs to sample each pressure sensing channel associated by touch location, within the same sampling period, increase the sampling time of each pressure sensing channel associated by touch location, the signal-to-noise ratio for improving pressure detecting reduces power consumption, and increases refresh rate.
It is another in the application in the specific implementation, referring to Figure 19, the step S1 further include: according to the touch information that the touch screen control system is sent, determine pressure plane to be checked with the presence or absence of touch signal, such as there is no touch signals without being sampled.
The application avoids pressure plane to be checked there is no touch information, then for pressure plane to be checked sampled caused by unnecessary power consumption.
The pressure detection method of the application is further illustrated below by a specific implementation.
Referring to Figure 10, herein described pressure plane to be checked includes 9 nodes, the corresponding correlation pressure detection zone of each node, i.e. node 0, node 1, node 2 ..., node 8, (C0, C1 ..., CN).9 pressure sensing channels of 9 node corresponding pressures detection sensor 2.
Referring to fig. 20, which comprises
201, the coordinate (X, Y) of touch location produced by the touch screen control module 3 is received.
202, the digital control length a0, width b0 that pressure detecting region associated by the centre coordinate (X0, Y0) and the node 0 of the 0 correlation pressure detection zone of node is obtained with processing module 14.
The centre coordinate (X0, Y0) of the correlation pressure detection zone of the node 0 and the length a0 of correlation pressure detection zone, width b0 can be configured from the factory of pressure sense die and be obtained, and different parameters is configured for different types.
203, judge whether the coordinate (X, Y) meets condition 1 simultaneously) to 4).
1)X>x0-a0/2
2)X<x0+a0/2
3)Y>y0-b0/2
4)Y<y0+b0/2
204, such as described coordinate (X, Y) meets condition 1 simultaneously) to 4), then coordinate (the X, Y the correlation pressure detection zone of the node 0) is fallen into, otherwise, the coordinate (X, Y) does not fall within the correlation pressure detection zone of the node 0.
205, successively judge the coordinate (X, Y the correlation pressure detection zone of node 1 to node 8) whether is fallen into, the coordinate (X, Y) falls into the corresponding pressure sensing channel of node of its correlation pressure detection zone as pressure sensing channel associated by touch location.
206, it is sampled for pressure sensing channel associated by the touch location.
Referring to Figure 11, in the specific implementation of the application one, when the touch location of finger is region 1, coordinate (the X, Y the correlation pressure detection zone of the node 4, node 5, node 7 and node 8) is fallen into, the node 4, node 5, node 7 and the corresponding pressure sensing channel of node 8 are as pressure sensing channel associated by touch location.
Described digital control and processing module 14 notifies the sampling module 12 by digital channel D2, is sampled for the node 4, node 5, node 7 and node 8.
Referring to Figure 12, the sampling module 12 during the sampling period, for the node 4, node 5, node 7 and node 8, repeats to sample.Alternatively,
During the sampling period referring to sampling module 12 described in Figure 15, the time that extension pin samples the node 4, node 5, node 7 and node 8.
Therefore, the application is without sampling whole pressure sensing channels, it only needs to sample each pressure sensing channel associated by touch location, within the same sampling period, increase the sampling time of each pressure sensing channel associated by touch location, the signal-to-noise ratio of pressure detecting is improved, power consumption is reduced and increases refresh rate.
Referring to Figure 14, in another specific implementation of the application, when finger touch position changes region 2 into from region 1, coordinate (the X, Y the correlation pressure detection zone of the node 0, node 1, node 3 and node 4) is fallen into, the node 0, node 1, node 3 and the corresponding pressure sensing channel of node 4 are as pressure sensing channel associated by touch location.
Described digital control and processing module 14 notifies the sampling module 12 by digital channel D2, is sampled for the node 0, node 1, node 3 and node 4.
During the sampling period referring to sampling module 12 described in Figure 13, for the node 0, node 1, node 3 and node 4, repeat to sample.Alternatively,
Referring to Figure 16, the sampling module 12 during the sampling period, the time that extension pin samples the node 0, node 1, node 3 and node 4.
Therefore, the application is without sampling whole pressure sensing channels, it only needs to sample pressure sensing channel associated by touch location, within the same sampling period, increase the sampling time of pressure sensing channel associated by touch location, the signal-to-noise ratio for improving pressure detecting reduces power consumption, and increases refresh rate.
Algorithm and display are not inherently related to any particular computer, virtual system, or other device provided herein.Various general-purpose systems can also be used together with teachings based herein.As described above, it is obvious for constructing structure required by this kind of system.In addition, the application is also not for any particular programming language.It should be understood that can use various programming languages realizes present context described herein, and the description done above to language-specific is the preferred forms in order to disclose the application.
In the instructions provided here, numerous specific details are set forth.It is to be appreciated, however, that embodiments herein can be practiced without these specific details.In some instances, well-known methods, structures and techniques have not been shown in detail, so as not to obscure the understanding of this specification.
Similarly, it should be understood that, in order to simplify the disclosure and help to understand one or more of the various inventive aspects, in the description above to the exemplary embodiment of the application, each feature of the application is grouped together into a single embodiment, figure, or description thereof sometimes.However, the disclosed method should not be interpreted as reflecting the following intention: i.e. claimed this application claims features more more than feature expressly recited in each claim.More precisely, as reflected in the following claims, inventive aspect is all features less than single embodiment disclosed above.Therefore, it then follows thus claims of specific embodiment are expressly incorporated in the specific embodiment, wherein separate embodiments of each claim as the application itself.
Those skilled in the art will understand that can be adaptively changed to the module in the equipment in embodiment and they are arranged in one or more devices different from this embodiment.Module or unit or component in embodiment can be combined into a module or unit or component, and furthermore they can be divided into a plurality of submodules or subunits or subassembliess.Other than such feature and/or at least some of process or unit exclude each other, all process or units of all features disclosed in this specification (including adjoint claim, abstract and attached drawing) and so disclosed any method or apparatus can be combined using any combination.Unless expressly stated otherwise, each feature disclosed in this specification (including adjoint claim, abstract and attached drawing) can be replaced with an alternative feature that provides the same, equivalent, or similar purpose.
Furthermore, those skilled in the art can understand that, although certain features included by some embodiments described herein include other embodiments rather than other feature, the combination of the feature of different embodiments means to be within scope of the present application and forms different embodiments.For example, in the following claims, embodiment claimed it is one of any can in any combination mode come using.
The various component embodiments of the application can be implemented in hardware, and is perhaps realized or is implemented in a combination thereof with the software module run on one or more processors.It will be understood by those of skill in the art that microprocessor or digital signal processor (DSP) can be used in practice to realize some or all functions of some or all components in the device according to the prompting message of the embodiment of the present application.The application is also implemented as being adapted for carrying out some or all device or device programs (for example, computer program and computer program product) of method as described herein.Such program for realizing the application can store on a computer-readable medium, or can have one or more signal
Form.Such signal can be downloaded from an internet website to obtain, and is perhaps provided on the carrier signal or is provided in any other form.
" one embodiment " referred to herein, " embodiment " either " one or more embodiment " it is meant that the special characteristic, structure or the characteristic that describe include at least one embodiment of the application in conjunction with the embodiments.Further, it is noted that word example " in one embodiment " is not necessarily all referring to the same embodiment here.
In the instructions provided here, numerous specific details are set forth.It is to be appreciated, however, that embodiments herein can be practiced without these specific details.In some instances, well-known methods, structures and techniques have not been shown in detail, so as not to obscure the understanding of this specification.
The application is limited it should be noted that above-described embodiment illustrates rather than the application, and those skilled in the art can be designed alternative embodiment without departing from the scope of the appended claims.In the claims, any reference symbol between parentheses should not be configured to limitations on claims.Word "comprising" does not exclude the presence of element or step not listed in the claims.Word "a" or "an" located in front of the element does not exclude the presence of multiple such elements.The application can be realized by means of including the hardware of several different elements and by means of properly programmed computer.In the unit claims listing several devices, several in these devices, which can be, is embodied by the same item of hardware.The use of word first, second, and third does not indicate any sequence.These words can be construed to title.
Claims (15)
- A kind of pressure detecting system, including switching module, sampling module, analog-to-digital conversion module and digital control and processing module, the switching module acquires the pressure signal of pressure sensing channel by analog switch, the sampling module carries out sampling to the pressure signal of acquisition and obtains sampled signal, the sampled signal is converted into digital signal by D/A converter module and gives digital control and processing module, the digital signal is calculated as pressure value by described digital control and processing module, it is characterized in that, the digital control touch location that touch screen control system transmission is received with processing module, the sampling module is enabled to be sampled for an at least pressure sensing channel associated by the touch location.
- Pressure detecting system as described in claim 1, it is characterized in that, described digital control and processing module falls into the correlation pressure detection zone of pressure plane institute partitioning site to be checked according to the touch location, determines pressure sensing channel associated by the touch location.
- Pressure detecting system as claimed in claim 1 or 2, it is characterized in that, the digital control touch information for being also used to be sent according to the touch screen control system with processing module, determine pressure plane to be checked with the presence or absence of touch signal, touch signal is such as not present, the sampling module is without being sampled.
- Pressure detecting system as described in claim 1, which is characterized in that described digital control and processing module during the sampling period, for each pressure sensing channel associated by the touch location, repeats to sample.
- Pressure detecting system as described in claim 1, which is characterized in that during the sampling period, the sampling time of each pressure sensing channel associated by the touch location is extended described digital control and processing module relative to its former sampling time.
- A kind of pressure detecting mould group, including press detection sensor and pressure detecting system, the pressure detecting system receives the pressure signal of pressure sensing channel in the press detection sensor, which is characterized in that the pressure detecting system receives the touch location that touch screen control system is sent；It is sampled for pressure sensing channel associated by the touch location.
- Pressure detecting mould group as claimed in claim 6, which is characterized in that the pressure detecting system falls into the correlation pressure detection zone of pressure plane institute partitioning site to be checked according to the touch location, determines Pressure sensing channel associated by the touch location.
- Pressure detecting mould group as claimed in claims 6 or 7, it is characterized in that, the touch information that the pressure detecting system is sent according to the touch screen control system, determines pressure plane to be checked with the presence or absence of touch signal, touch signal is such as not present, the sampling module is without being sampled.
- Pressure detecting mould group as claimed in claim 6, which is characterized in that the pressure detecting system during the sampling period, for pressure sensing channel associated by the touch location, repeats to sample.
- Pressure detecting mould group as claimed in claim 6, which is characterized in that during the sampling period, the sampling time of each pressure sensing channel associated by the touch location is extended the pressure detecting system relative to its former sampling time.
- A kind of pressure detection method characterized by comprisingReceive the touch location that touch screen control system is sent；It is sampled for pressure sensing channel associated by the touch location.
- Method as claimed in claim 11, it is characterized in that, the touch location for receiving touch screen control system and sending further include: according to the touch information that the touch screen control system is sent, determine pressure plane to be checked with the presence or absence of touch signal, touch signal is such as not present, without sampling.
- Method as described in claim 11 or 12, it is characterized in that, it is described to be sampled for pressure sensing channel associated by the touch location are as follows: the correlation pressure detection zone that pressure plane institute partitioning site to be checked is fallen into according to the touch location determines pressure sensing channel associated by the touch location.
- Method as claimed in claim 11, which is characterized in that described to carry out sampling for each pressure sensing channel associated by the touch location and include:During the sampling period, for each pressure sensing channel associated by the touch location, repeat to sample.
- Method as claimed in claim 11, which is characterized in that described to carry out sampling for each pressure sensing channel associated by the touch location and include:During the sampling period, the sampling time of each pressure sensing channel associated by the touch location is extended relative to its former sampling time.
Applications Claiming Priority (1)
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| PCT/CN2016/085524 WO2017214789A1 (en) | 2016-06-13 | 2016-06-13 | Pressure detection system, module and method |
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