WO2024082396A1 - Method and apparatus for determining transmitting gain, device, medium and product - Google Patents

Abstract

Disclosed in the present application are a method and apparatus for determining a transmitting gain, a device, a medium and a product. The method for determining a transmitting gain comprises: controlling a plurality of infrared transmitting lamps in an infrared touch screen to sequentially transmit infrared signals according to respective corresponding transmitting gain values; acquiring signal strength values of the infrared signals received by a plurality of infrared receiving lamps corresponding to the plurality of infrared transmitting lamps to obtain a signal strength array; when a first signal strength value in the signal strength array is smaller than a preset strength threshold, and a transmitting gain value of a first infrared transmitting lamp corresponding to the first signal strength value is smaller than a preset maximum gain threshold, increasing the transmitting gain value of the first infrared transmitting lamp according to a preset step size; and circularly executing until the first signal strength value is not smaller than the preset strength threshold to obtain target transmitting gain values respectively corresponding to the plurality of infrared transmitting lamps. According to embodiments of the present application, the touch detection effect of an infrared touch screen can be improved.

Description

Transmission gain determination method, device, equipment, medium and product

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese patent application 202211296760.2, filed on October 21, 2022, entitled “Transmission gain determination method, device, equipment, medium and product,” and the entire contents of that application are incorporated herein by reference.

Technical Field

The present application belongs to the field of touch control technology, and in particular, relates to a method, device, equipment, medium and product for determining emission gain.

Background technique

With the continuous development of touch technology, various touch screens have emerged. Among them, infrared touch screens are widely used in various electronic devices. How to improve the touch detection performance of infrared touch screens has become one of the technical problems that need to be solved urgently.

In the related art, the touch detection method of the infrared touch screen is to respectively set multiple infrared transmitting lamps and multiple infrared receiving lamps on the four sides of the infrared touch screen, wherein the infrared transmitting lamps and the infrared receiving lamps are arranged relative to each other. In this way, the infrared signal is emitted by the infrared transmitting lamp, and the infrared signal is received by the relatively arranged infrared receiving lamp. Then, according to the signal strength of the received infrared signal, it is determined whether there is any obstruction on the infrared touch screen and the obstruction area is determined, thereby realizing touch detection.

At present, when controlling the infrared transmitting lamp to transmit infrared signals, a unified transmission gain value is used, and the same transmission gain value may not be the optimal transmission gain value for different infrared transmitting lamps. This is because different infrared transmitting lamps have different signal transmission angles with the same infrared receiving lamp, so that when different infrared transmitting lamps transmit infrared signals at the transmission power generated by the same transmission gain, the signal strength received by the same infrared receiving lamp may be too high or too low, resulting in poor touch detection effect.

Summary of the invention

The embodiments of the present application provide a method, device, equipment, medium and product for determining emission gain, which can respectively determine the optimal emission gain values corresponding to multiple infrared emission lamps in an infrared touch screen, thereby improving the touch detection effect of the infrared touch screen.

In a first aspect, an embodiment of the present application provides a method for determining a transmission gain, the method comprising:

Control multiple infrared transmitting lamps in the infrared touch screen to transmit infrared signals in sequence according to their corresponding transmitting gain values;

Obtain signal strength values of infrared signals received by a plurality of infrared receiving lamps corresponding to the plurality of infrared transmitting lamps to obtain a signal strength array;

When the first signal strength value in the signal strength array is less than the preset strength threshold, and the emission gain value of the first infrared emission lamp corresponding to the first signal strength value is less than the preset maximum gain threshold, the emission gain value of the first infrared emission lamp is increased according to a preset step size to update the emission gain value of the first infrared emission lamp, wherein the first signal strength value is any one of the signal strength values in the signal strength array;

Return to execute the control of multiple infrared emitting lamps in the infrared touch screen to emit infrared signals in sequence according to their corresponding emission gain values until the first signal strength value is not less than the preset intensity threshold, and obtain target emission gain values corresponding to the multiple infrared emitting lamps respectively.

In some embodiments, the initial emission gain value of the plurality of infrared emission lamps is a preset minimum gain value.

In some embodiments, the infrared touch screen includes multiple groups of infrared receiving light groups, and each group of the infrared receiving light groups includes multiple infrared receiving lights;

The controlling of the plurality of infrared emitting lamps in the infrared touch screen to emit infrared signals in sequence according to their corresponding emission gain values comprises:

According to the arrangement order of the multiple infrared receiving light groups in the infrared touch screen, the multiple infrared transmitting light groups respectively corresponding to the multiple infrared receiving light groups are controlled to transmit infrared signals in sequence according to their corresponding transmission gain values.

In some embodiments, controlling the plurality of infrared transmitting lamps corresponding to the plurality of infrared receiving lamp groups to transmit infrared signals in sequence according to their corresponding transmission gain values includes:

Determine a plurality of target infrared emitting lamps corresponding to a target infrared receiving lamp group, wherein the target infrared receiving lamp group is any one infrared receiving lamp group among the plurality of infrared receiving lamp groups;

According to the arrangement order of the multiple target infrared emitting lamps in the infrared touch screen, the multiple target infrared emitting lamps are controlled to emit infrared signals in sequence according to their corresponding emission gain values.

In some embodiments, the step of obtaining infrared signal strength values received by a plurality of infrared receiving lamps corresponding to the plurality of infrared transmitting lamps to obtain a signal strength array includes:

Acquire the signal strength value of the infrared signal received by each infrared receiving light group in the plurality of infrared receiving light groups, and obtain the signal strength subarrays respectively corresponding to the plurality of infrared receiving light groups;

The signal strength sub-arrays corresponding to the multiple groups of infrared receiving light groups are spliced to obtain the signal strength array.

In some embodiments, the step of obtaining the signal strength value of the infrared signal received by each infrared receiving light group in the plurality of infrared receiving light groups to obtain the signal strength subarrays corresponding to the plurality of infrared receiving light groups, respectively, includes:

Obtaining the sum of the signal strength values of the target infrared signal received by the multiple infrared receiving lights in the target infrared receiving light group, and obtaining the signal strength value corresponding to the target infrared signal, wherein the target infrared receiving light group is any one of the multiple infrared receiving light groups, and the target infrared signal is an infrared signal emitted by any one of the multiple target infrared emitting lights corresponding to the target infrared receiving light group;

The signal strength value corresponding to the infrared signal emitted by each target infrared emitting lamp is used as an array element to generate a signal strength sub-array corresponding to the target infrared receiving lamp group.

In some embodiments, after obtaining the target emission gain values respectively corresponding to the plurality of infrared emission lamps, the method further includes:

According to the target emission gain values respectively corresponding to the plurality of infrared emission lamps, the plurality of infrared emission lamps are controlled to emit infrared signals to perform touch detection.

In some embodiments, the method further comprises:

When the emission gain value of the first infrared emission lamp corresponding to the first signal strength value is not less than a preset maximum gain threshold, the preset maximum gain threshold is determined as a target emission gain value corresponding to the first infrared emission lamp.

In a second aspect, an embodiment of the present application provides a transmission gain determination device, the device comprising:

An emission control module is used to control multiple infrared emission lamps in the infrared touch screen to emit infrared signals in sequence according to their corresponding emission gain values;

A signal acquisition module, used to acquire signal strength values of infrared signals received by a plurality of infrared receiving lamps corresponding to the plurality of infrared transmitting lamps, and obtain a signal strength array;

a gain adjustment module, configured to increase the emission gain value of the first infrared emission lamp according to a preset step length to update the emission gain value of the first infrared emission lamp when the first signal strength value in the signal strength array is less than the preset strength threshold and the emission gain value of the first infrared emission lamp corresponding to the first signal strength value is less than a preset maximum gain threshold, wherein the first signal strength value is any one of the signal strength values in the signal strength array;

The loop execution module is used to return to execute the control of multiple infrared emitting lamps in the infrared touch screen to emit infrared signals in turn according to their corresponding emission gain values until the first signal strength value is not less than the preset intensity threshold, thereby obtaining target emission gain values corresponding to the multiple infrared emitting lamps respectively.

In some embodiments, the initial emission gain value of the plurality of infrared emission lamps is a preset minimum gain value.

In some embodiments, the infrared touch screen includes multiple groups of infrared receiving light groups, and each group of the infrared receiving light groups includes multiple infrared receiving lights;

The launch control module comprises:

The control submodule is used to control the plurality of infrared transmitting lamps respectively corresponding to the plurality of infrared receiving lamp groups to transmit infrared signals in sequence according to their respective corresponding transmission gain values according to the arrangement order of the plurality of infrared receiving lamp groups in the infrared touch screen.

In some embodiments, the control submodule includes:

A target determination unit, used to determine a plurality of target infrared emitting lamps corresponding to a target infrared receiving lamp group, wherein the target infrared receiving lamp group is any one of the plurality of infrared receiving lamp groups;

The emission control unit is used to control the multiple target infrared emission lamps to emit infrared signals in sequence according to their corresponding emission gain values according to the arrangement order of the multiple target infrared emission lamps in the infrared touch screen.

In some embodiments, the signal acquisition module includes:

The intensity acquisition submodule is used to acquire the signal intensity value of the infrared signal received by each infrared receiving light group in the plurality of infrared receiving light groups, and obtain the signal intensity subarrays corresponding to the plurality of infrared receiving light groups respectively;

The array determination submodule is used to splice the signal strength subarrays corresponding to the multiple groups of infrared receiving light groups to obtain the signal strength array.

In some embodiments, the intensity acquisition submodule includes:

A summing processing unit is used to obtain the sum of the signal strength values of the target infrared signal received by the multiple infrared receiving lamps in the target infrared receiving lamp group, and obtain the signal strength value corresponding to the target infrared signal, wherein the target infrared receiving lamp group is any one of the multiple infrared receiving lamp groups, and the target infrared signal is an infrared signal emitted by any one of the multiple target infrared emitting lamps corresponding to the target infrared receiving lamp group;

The array generation unit is used to use the signal strength value corresponding to the infrared signal emitted by each target infrared emitting lamp as an array element to generate a signal strength sub-array corresponding to the target infrared receiving lamp group.

In some embodiments, the above device further comprises:

The touch detection module is used to control the multiple infrared emitting lamps to emit infrared signals according to the target emission gain values respectively corresponding to the multiple infrared emitting lamps after obtaining the target emission gain values respectively corresponding to the multiple infrared emitting lamps, so as to perform touch detection.

In some embodiments, the above device further comprises:

The gain determination module is used to determine the preset maximum gain threshold as the target emission gain value corresponding to the first infrared emission lamp when the emission gain value of the first infrared emission lamp corresponding to the first signal strength value is not less than the preset maximum gain threshold.

In a third aspect, an embodiment of the present application provides an electronic device, the electronic device comprising: a processor and a memory storing computer program instructions;

When the processor executes the computer program instructions, the steps of the transmission gain determination method as described in any one of the embodiments of the first aspect are implemented.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, on which computer program instructions are stored. When the computer program instructions are executed by a processor, the steps of the transmission gain determination method as described in any embodiment of the first aspect are implemented.

In a fifth aspect, an embodiment of the present application provides a computer program product. When the instructions in the computer program product are executed by a processor of an electronic device, the electronic device performs the steps of the transmission gain determination method as described in any embodiment of the first aspect.

The transmission gain determination method, device, equipment, medium and product in the embodiments of the present application control multiple infrared transmitting lamps in the infrared touch screen to transmit infrared signals according to their respective corresponding transmission gain values, and obtain the signal strength value of the infrared signal received by the infrared receiving lamp to obtain a signal strength array, and then, when any signal strength value in the signal strength array, that is, the first signal strength value, is less than a preset strength threshold, and the transmission gain value of the first infrared transmitting lamp corresponding to the first signal strength value is less than a preset maximum gain threshold, the transmission gain value of the first infrared transmitting lamp is gradually increased in a step-by-step manner according to a preset step size, and the above process is repeated until the first signal strength value is not less than the preset intensity threshold. In this way, in the embodiment of the present application, when each infrared transmitting lamp transmits an infrared signal according to the initial transmission gain value, the signal strength value of the initial infrared signal received by the infrared receiving lamp is less than the preset intensity threshold. On this basis, the transmission gain is gradually increased in a step-by-step manner until each infrared transmitting lamp transmits an infrared signal according to its own updated transmission gain value, and the first signal strength value of the infrared signal received by the infrared receiving lamp is greater than the preset intensity threshold. Therefore, the optimal target transmission gain value corresponding to each infrared transmitting lamp can be obtained, so that when different infrared transmitting lamps in the infrared touch screen use different target transmission gain values to transmit infrared signals, the intensity values of the infrared signals received by the infrared receiving lamps at different angles can just reach the preset intensity threshold, that is, the signal strength of the received infrared signals is relatively consistent, thereby improving the touch detection effect of the infrared touch screen.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solution of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

FIG1 is a schematic diagram of the structure of an infrared touch screen provided by the present application;

FIG2 is a schematic diagram of a signal transmission of an infrared touch screen provided by the present application;

FIG3 is a flow chart of a method for determining a transmission gain provided by an embodiment of the present application;

FIG4 is a structural block diagram of a transmission gain determination system provided by the present application;

FIG5 is a schematic diagram of a corresponding relationship between a transmitting light and a receiving light group in an infrared touch screen provided by the present application;

FIG6 is a schematic diagram of the structure of a transmission gain determination device provided by an embodiment of the present application;

FIG. 7 is a schematic diagram of the structure of an electronic device provided by an embodiment of the present application.

Detailed ways

The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

At present, the touch detection method of the infrared touch screen is as follows: as shown in FIG1, infrared emitting lamps 11 and infrared receiving lamps 12 are distributed on the four sides of the infrared touch screen, for example, infrared emitting lamps 11 are set on the first frame and the second frame, and infrared receiving lamps 12 are set on the third frame and the fourth frame, and the infrared emitting lamps 11 and the infrared receiving lamps 12 are set opposite to each other, and the infrared emitting lamps 11 are lit one by one, and the infrared receiving lamps 12 receive the infrared detection signal emitted by the infrared emitting lamps 11, and after converting the signal into an electrical signal, the fluctuation of the electrical signal is judged to determine whether there is an obstruction and the obstruction area, thereby realizing touch detection. When the infrared emitting lamp 11 is lit, the current passing through the infrared emitting lamp 11 determines the emission intensity of the infrared emitting lamp 11, and at the same time determines the intensity of the electrical signal converted after the infrared receiving lamp 12 receives the infrared signal.

In addition, as shown in FIG2 , each infrared transmitting lamp transmits infrared signals at different angles, and infrared signals at different angles are received by different infrared receiving lamps. Since the distances from the infrared transmitting lamp to each infrared receiving lamp are different, the infrared signal strengths received by different infrared receiving lamps are inconsistent under the same transmitting power. In order to enable the infrared signal at a large angle emitted by the infrared transmitting lamp to be received by the infrared receiving lamp, it is necessary to increase the transmitting power of the infrared transmitting lamp to increase the signal strength received by the infrared receiving lamp. However, a larger transmitting power will cause the infrared signal strength at a small angle emitted by the infrared transmitting lamp to be too high and saturated. For a small obstructing object, the infrared signal strength received by the infrared receiving lamp may exceed the preset detection strength value range, resulting in detection failure. Similarly, in order to avoid the infrared signal strength at a small angle emitted by the infrared transmitting lamp to be too high and saturated, exceeding the preset detection strength value range of the infrared receiving lamp, it is necessary to reduce the transmitting power of the infrared transmitting lamp. In this way, the infrared signal at a large angle emitted by the infrared transmitting lamp may not be received by the infrared receiving lamp due to the low signal strength. When there is an obstructing object, the infrared signal cannot produce enough variation, resulting in detection failure. Therefore, if the emission gain of the infrared emission lamp is set too large or too small, the touch detection effect of the infrared touch screen will be affected.

In order to solve the problems of the prior art, the embodiments of the present application provide a method, device, equipment and computer-readable storage medium for determining transmission gain. The transmission gain determination method can be applied to the scenario of adjusting the transmission gain of infrared touch screen signals. The transmission gain determination method provided by the embodiments of the present application is first introduced below.

FIG3 is a flow chart of a method for determining a transmission gain provided by an embodiment of the present application. As shown in FIG3 , the method for determining a transmission gain may specifically include the following steps:

S310, controlling multiple infrared transmitting lamps in the infrared touch screen to transmit infrared signals in sequence according to their corresponding transmission gain values;

S320, obtaining signal strength values of infrared signals received by a plurality of infrared receiving lamps corresponding to a plurality of infrared transmitting lamps, and obtaining a signal strength array;

S330, when the first signal strength value in the signal strength array is less than the preset strength threshold, and the emission gain value of the first infrared emission lamp corresponding to the first signal strength value is less than the preset maximum gain threshold, increase the emission gain value of the first infrared emission lamp according to the preset step length to update the emission gain value of the first infrared emission lamp, wherein the first signal strength value is any signal strength value in the signal strength array;

S340, return to execute control of the multiple infrared emitting lamps in the infrared touch screen to emit infrared signals in sequence according to their corresponding emission gain values, until the first signal strength value is not less than the preset strength threshold, and obtain the target emission gain values corresponding to the multiple infrared emitting lamps respectively.

Therefore, by controlling the multiple infrared emitting lamps in the infrared touch screen to emit infrared signals according to their respective corresponding emission gain values, and obtaining the signal strength value of the infrared signal received by the infrared receiving lamp, a signal strength array is obtained, and then when any one of the signal strength values in the signal strength array, that is, the first signal strength value, is less than the preset strength threshold, and the emission gain value of the first infrared emitting lamp corresponding to the first signal strength value is less than the preset maximum gain threshold, the emission gain value of the first infrared emitting lamp is gradually increased in a step-by-step manner according to the preset step size, and the above process is repeated until the first signal strength value is not less than the preset strength threshold. In this way, in the embodiment of the present application, when each infrared transmitting lamp transmits an infrared signal according to the initial transmission gain value, the signal strength value of the initial infrared signal received by the infrared receiving lamp is less than the preset intensity threshold. On this basis, the transmission gain is gradually increased in a step-by-step manner until each infrared transmitting lamp transmits an infrared signal according to its own updated transmission gain value, and the first signal strength value of the infrared signal received by the infrared receiving lamp is greater than the preset intensity threshold. Therefore, the optimal target transmission gain value corresponding to each infrared transmitting lamp can be obtained, so that when different infrared transmitting lamps in the infrared touch screen use different target transmission gain values to transmit infrared signals, the intensity values of the infrared signals received by the infrared receiving lamps at different angles can just reach the preset intensity threshold, that is, the signal strength of the received infrared signals is relatively consistent, thereby improving the touch detection effect of the infrared touch screen.

The specific implementation methods of the above steps are introduced below.

In some embodiments, in S310, the infrared touch screen may include a plurality of infrared emitting lamps and a plurality of infrared receiving lamps that are relatively arranged. The initial emission gain values of different infrared emitting lamps may be the same or different, which is not limited here. In addition, the setting principle of the initial emission gain value may be that when the infrared emitting lamp emits an infrared signal according to its corresponding initial emission gain value, the signal strength value of the initial infrared signal received by the corresponding plurality of infrared receiving lamps is less than a preset intensity threshold.

In some examples, the initial emission gain values of the plurality of infrared emission lamps may be a preset minimum gain value. Based on this, before the above S310, the emission gain determination method provided in the embodiment of the present application may further include:

The initial emission gain value corresponding to each infrared emission lamp in the infrared touch screen is set to a preset minimum gain value.

Here, in the initial case, the emission gain value of each infrared emitting lamp in the infrared touch screen can be a preset minimum value. When each infrared emitting lamp emits an initial infrared signal according to the initial emission gain value, the signal strength values of each initial infrared signal received by the infrared receiving lamp are all less than the preset intensity threshold. On this basis, the emission gain value corresponding to each infrared emitting lamp is gradually accumulated according to the preset step size, that is, the emission gain value corresponding to the infrared emitting lamp is increased in a step-by-step manner.

Exemplarily, in the process of determining the transmission gain value corresponding to the infrared transmitting lamp, when the infrared transmitting lamp is controlled to transmit an infrared signal for the first time, it can be transmitted according to the initial transmission gain value (i.e., the preset minimum value), and the signal strength value of the initial infrared signal received by the corresponding infrared receiving lamp is less than the preset intensity threshold. The transmission gain value used when the infrared transmitting lamp is controlled to transmit an infrared signal again during the step loop can be the transmission gain value obtained after cumulative update according to the preset step size in the previous step.

In addition, the order of controlling the multiple infrared emitting lamps to transmit infrared signals in sequence may be the order in which the multiple infrared emitting lamps are arranged in the infrared touch screen. Of course, it may also be other orders, which are not limited here.

In some embodiments, in S320, an infrared signal emitted by an infrared transmitting lamp can be received by multiple infrared receiving lamps that are relatively arranged, and the sum of the signal strength values of the infrared signals received by the multiple infrared receiving lamps, or the average value of the signal strength values, or the median value of the signal strength values, etc. can be used as the signal strength value of the infrared signal received by the infrared receiving lamp in the infrared touch screen at one time.

For example, in a single cycle, each of the multiple infrared emitting lamps can emit an infrared signal once, and correspondingly, the infrared receiving lamp can receive the infrared signal emitted by each infrared emitting lamp, and the number of transmissions is equal to the number of receptions. In this way, after the multiple infrared emitting lamps emit infrared signals in sequence, the infrared receiving lamp can receive infrared signals multiple times, and obtain the signal strength value of the infrared signal received each time, forming a signal strength array.

Here, the signal strength array can be a one-dimensional array obtained by sequentially arranging the signal strength values corresponding to the infrared signals received multiple times, or a multi-dimensional array consisting of the signal strength values corresponding to the infrared signals received multiple times, which is not limited here. Among them, one element in the signal strength array can correspond to one signal strength value.

Exemplarily, after receiving an infrared signal each time, the multiple infrared receiving lights in the infrared touch screen can convert the infrared signal into an electrical signal, and then use the sum of the signal strength values of the electrical signals converted by the multiple infrared receiving lights as the signal strength value of a received infrared signal.

In some embodiments, in S330, the preset intensity threshold may be the signal intensity value expected to be received by the infrared receiving lamp set according to actual needs. When the transmission gain value of any transmitting lamp in the infrared touch screen is the minimum transmission gain value in the initial situation, the signal intensity value received by the corresponding signal receiving module is lower than the preset intensity threshold. The preset maximum gain threshold may be the gain value when the infrared transmitting lamp reaches the transmission power saturation. When the transmission gain value reaches a certain value, the transmission power of the transmitting lamp reaches saturation, and continuing to increase the transmission gain value has almost no effect on the intensity of the received signal.

In addition, the preset step size can be directly the preset gain voltage value, or it can be unit 1 in digital control. The unit 1 signal is then converted into an analog gain voltage value through the DAC module, and the transmission gain value is increased step by step based on this gain voltage value. There is no limitation here.

Exemplarily, after obtaining the signal strength array, each element in the signal strength array can be traversed to determine whether the signal strength value corresponding to each element is less than the preset strength threshold. When any signal strength value in the signal strength array, that is, the first signal strength value, is less than the preset strength threshold, and the corresponding emission gain value used by the first infrared emitting lamp is less than the preset maximum gain threshold, it means that the emission gain value of the first infrared emitting lamp has not reached its optimal emission gain threshold at this time. Therefore, the emission gain value of the first infrared emitting lamp can be increased according to the preset step size, and the increased emission gain value can be used as the emission gain value used when the first infrared emitting lamp emits an infrared signal in the next cycle. Among them, the first infrared emitting lamp can be the infrared emitting lamp that emits the first infrared signal before obtaining the first signal strength value of the first infrared signal received by the infrared receiving lamp.

In some embodiments, in S340, after updating the transmission gain value, the process may return to S310 and repeat S310-S340 until the signal strength values of all infrared signals received by the infrared receiving lamp are not less than the preset strength threshold. In this way, the optimal transmission gain value corresponding to each infrared transmitting lamp, that is, the target transmission gain value, may be obtained. The target transmission gain values corresponding to different infrared transmitting lamps may be different.

In addition, in some implementations, the transmission gain determination method provided in the embodiments of the present application may further include:

When the emission gain value of the first infrared emission lamp corresponding to the first signal strength value is not less than the preset maximum gain threshold, the preset maximum gain threshold is determined as the target emission gain value corresponding to the first infrared emission lamp.

For example, if after multiple cycles, the first signal strength value is still less than the preset strength threshold, and the corresponding emission gain value has reached the preset maximum gain threshold, the preset maximum gain threshold can be determined as the emission gain value corresponding to the first infrared emission lamp.

In this way, by setting the maximum gain threshold, the emission gain value of the infrared emission lamp can be controlled so as not to exceed the preset maximum gain threshold, thereby avoiding unnecessary waste of electric energy.

In addition, as shown in FIG4 , a system block diagram applicable to the transmission gain determination method in the embodiment of the present application is shown. The system may include: a microcontroller unit 40, which is used to control the transmission gain through an analog-to-digital conversion module 401; a transmission control circuit 41, which is used to control all infrared transmission lamps in the infrared transmission lamp matrix 42 to transmit infrared signals one by one according to their corresponding transmission gain values; a receiving control circuit 43, which is used to control the infrared receiving lamps in the infrared receiving lamp matrix 44 to receive infrared signals one by one and convert them into analog electrical signals, and then use the analog-to-digital conversion module 402 to convert the analog electrical signals into digital electrical signals for calculation and comparison and other processing.

In some examples, the infrared touch screen may include multiple groups of infrared receiving light groups, and each group of infrared receiving light groups may include multiple infrared receiving light groups.

Based on this, the above S310 may specifically include:

The plurality of infrared transmitting lamps respectively corresponding to the plurality of infrared receiving lamp groups are controlled to transmit infrared signals in sequence according to the corresponding transmission gain values.

Here, since the input bit number of the analog-to-digital conversion module 402 is limited, the same number of infrared receiving lamps as the input bit number can be connected at one time. Therefore, in the process of frame scanning of the infrared touch screen, the infrared receiving lamps can be divided into multiple groups according to the input bit number of the analog-to-digital conversion module 402, and the number of infrared receiving lamps contained in each infrared receiving lamp group is the same as the input bit number of the analog-to-digital conversion module 402. One group of infrared receiving lamps can receive infrared signals from multiple infrared transmitting lamps, based on this, the multiple infrared transmitting lamps can be used as the infrared transmitting lamps corresponding to the infrared receiving lamp group.

For example, as shown in FIG5 , assuming that the infrared touch screen includes 30 infrared receiving lamps, and the input bit number of the analog-to-digital conversion module is 6, the 30 infrared receiving lamps can be divided into N=5 groups, wherein the 1st to 6th infrared receiving lamps are the first infrared receiving lamp group 51, the 7th to 12th infrared receiving lamps are the second infrared receiving lamp group 52, the 13th to 18th infrared receiving lamps are the third infrared receiving lamp group 53, the 19th to 24th infrared receiving lamps are the fourth infrared receiving lamp group 54, and the 25th to 30th infrared receiving lamps are the fifth infrared receiving lamp group 55. According to the receivable signal angle range corresponding to each group of infrared receiving lamp groups, multiple infrared emitting lamps located within the range can be determined as the infrared emitting lamps corresponding to the group of infrared receiving lamp groups.

Based on this, the multiple infrared emitting lamps corresponding to each infrared receiving lamp group can be controlled to emit infrared signals in sequence according to the arrangement order of the multiple infrared receiving lamp groups in the infrared touch screen. For example, if the first infrared receiving lamp group, the second infrared receiving lamp group, the third infrared receiving lamp group, the fourth infrared receiving lamp group and the fifth infrared receiving lamp group are arranged in sequence in the infrared touch screen, the multiple infrared emitting lamps corresponding to the first infrared receiving lamp group can be controlled to emit infrared signals in sequence, and the signal strength values corresponding to the multiple infrared signals received by the first infrared receiving lamp group can be obtained. Then, the multiple infrared emitting lamps corresponding to the second infrared receiving lamp group are controlled to emit infrared signals in sequence, and the signal strength values corresponding to the multiple infrared signals received by the second infrared receiving lamp group are obtained. Next, the multiple infrared emitting lamps corresponding to the third infrared receiving lamp group are controlled to emit infrared signals in sequence, and the signal strength values corresponding to the multiple infrared signals received by the third infrared receiving lamp group are obtained, and so on, until the emission control of the multiple infrared emitting lamps corresponding to the fifth infrared receiving lamp group and the acquisition of the signal strength values are completed.

Based on this, in some embodiments, for each group of infrared receiving light groups, the step of controlling the plurality of infrared transmitting lights corresponding to the plurality of infrared receiving light groups to transmit infrared signals in sequence according to their respective corresponding transmission gain values may specifically include:

Determine a plurality of target infrared transmitting lamps corresponding to a target infrared receiving lamp group, wherein the target infrared receiving lamp group is any one infrared receiving lamp group among the plurality of infrared receiving lamp groups;

According to the arrangement order of the multiple target infrared emitting lamps in the infrared touch screen, the multiple target infrared emitting lamps are controlled to emit infrared signals in sequence according to their corresponding emission gain values.

Here, the number of infrared transmitting lamps corresponding to different infrared receiving lamp groups may be different. For example, the number of infrared transmitting lamps corresponding to the infrared receiving lamp group located at the edge of the infrared touch screen may be smaller than the number of infrared transmitting lamps corresponding to the infrared receiving lamp group located at the center of the infrared touch screen.

When controlling the emission of the infrared transmitting lights corresponding to any group of infrared receiving light groups, the multiple infrared transmitting lights within the receivable signal angle range corresponding to the any group of infrared receiving light groups, that is, the target infrared receiving light group, can be determined as the multiple target infrared transmitting lights corresponding to the target infrared receiving light group.

For example, as shown in Figure 5, when traversing to the first infrared receiving light group 51, based on the receivable signal angle range corresponding to the first infrared receiving light group, it can be determined that the 1st to 8th infrared transmitting lights within the range are the infrared transmitting lights corresponding to the first infrared receiving light group 51, and then the 1st to 8th infrared transmitting lights are lit in sequence according to the arrangement order of the 1st to 8th infrared transmitting lights in the infrared touch screen, such as lighting the 1st infrared transmitting light first, and obtaining the signal strength value corresponding to the infrared signal emitted by the 1st infrared transmitting light received by the first infrared receiving light group 51, and then lighting the 2nd infrared transmitting light, and obtaining the signal strength value corresponding to the infrared signal emitted by the 2nd infrared transmitting light received by the first infrared receiving light group 51, and so on, until the 8th infrared transmitting light is lit, and the signal strength value corresponding to the infrared signal emitted by the 8th infrared transmitting light received by the first infrared receiving light group 51 is obtained. Next, based on the receivable signal angle range corresponding to the second infrared receiving lamp group 52, the 5th to 14th infrared transmitting lamps within the range are determined to be the infrared transmitting lamps corresponding to the second infrared receiving lamp group 52, and then the 5th to 14th infrared transmitting lamps are lit in sequence according to the arrangement order of the 5th to 14th infrared transmitting lamps in the infrared touch screen. The specific process is similar to the aforementioned first infrared receiving lamp group 51 and will not be repeated here. In addition, based on the receivable signal angle range corresponding to the third infrared receiving lamp group 53, the 11th to 20th infrared transmitting lamps within the range are determined to be the infrared transmitting lamps corresponding to the third infrared receiving lamp group 53. Based on the receivable signal angle range corresponding to the fourth infrared receiving lamp group 54, the 17th to 26th infrared transmitting lamps within the range are determined to be the infrared transmitting lamps corresponding to the fourth infrared receiving lamp group 54. Based on the receivable signal angle range corresponding to the fifth infrared receiving lamp group 55, the 23rd to 30th infrared transmitting lamps within the range are determined to be the infrared transmitting lamps corresponding to the fifth infrared receiving lamp group 55.

For example, when the emission control of the infrared emission lamps corresponding to all infrared receiving lamp groups is completed, it can be regarded as completing one frame scan. In this way, the signal strength values corresponding to the multiple infrared signals received in sequence by each infrared receiving lamp group can be obtained.

Based on this, in order to better traverse and compare the signal strength values, in some implementations, the above S320 may specifically include:

Obtaining the signal strength value of the infrared signal received by each infrared receiving light group in the plurality of infrared receiving light groups, and obtaining the signal strength subarrays corresponding to the plurality of infrared receiving light groups respectively;

The signal strength sub-arrays corresponding to the multiple groups of infrared receiving light groups are spliced to obtain a signal strength array.

Here, according to the above content, each group of infrared receiving lights corresponds to multiple infrared transmitting lights, and each infrared transmitting light is lit once, and the infrared receiving light group can receive a signal strength value corresponding to an infrared signal. Therefore, a group of infrared receiving lights can obtain a signal strength sub-array.

For example, the infrared transmitting light serial numbers corresponding to the first infrared receiving light group 51 in Figure 5 are 1 to 8, so the first infrared receiving light group 51 can obtain a signal strength sub-array consisting of 8 signal strength values, and the infrared transmitting light serial numbers corresponding to the second infrared receiving light group 52 are 5 to 14, so the second infrared receiving light group 52 can obtain a signal strength sub-array consisting of 10 signal strength values, and so on, each infrared receiving light group can obtain a signal strength sub-array consisting of multiple signal strength values.

In some embodiments, the step of obtaining the signal strength value of the infrared signal received by each infrared receiving light group in the plurality of infrared receiving light groups to obtain the signal strength subarrays corresponding to the plurality of infrared receiving light groups may specifically include:

Obtaining the sum of the signal strength values of the target infrared signal received by the multiple infrared receiving lamps in the target infrared receiving lamp group, and obtaining the signal strength value corresponding to the target infrared signal, wherein the target infrared receiving lamp group is any one of the multiple infrared receiving lamp groups, and the target infrared signal is an infrared signal emitted by any one of the multiple target infrared emitting lamps corresponding to the target infrared receiving lamp group;

The signal strength value corresponding to the infrared signal emitted by each target infrared emitting lamp is used as an array element to generate a signal strength sub-array corresponding to the target infrared receiving lamp group.

Here, the infrared signal emitted by an infrared transmitting lamp once can be received by multiple infrared receiving lamps in the corresponding infrared receiving lamp group. In this way, the sum of the signal strength values of the infrared signals received by the multiple infrared receiving lamps can be used as the signal strength value of the infrared signal received by the infrared receiving lamp group. Of course, the average value or median value of the signal strength values of the infrared signals received by the multiple infrared receiving lamps can also be used as the signal strength value of the infrared signal received by the infrared receiving lamp group.

In this way, the infrared signal emitted by each infrared transmitting lamp corresponding to the infrared receiving lamp group can obtain a corresponding signal strength value, and then the multiple signal strength values are used as array elements to form a signal strength sub-array to obtain the signal strength sub-array corresponding to the infrared receiving lamp group.

In addition, after obtaining the signal strength sub-arrays corresponding to each infrared receiving light group, the signal strength sub-arrays corresponding to the multiple infrared receiving light groups can be spliced, such as serially connected, to obtain a signal strength array, which can be set as Data[K], where K is the total number of times that the multiple infrared transmitting lights are controlled to transmit infrared signals during the process of completing a frame scan. As shown in the example of Figure 5, a signal strength array of size 46 can be finally obtained, that is, K = 8 + 10 + 10 + 10 + 8 = 46.

Specifically, the total number of times the infrared emitter needs to be controlled to emit infrared signals for scanning one frame can be:

In the above formula (1), M(n) is the number of infrared transmitting lamps corresponding to each infrared receiving lamp group, N is the number of infrared receiving lamp groups, and n is the group number corresponding to the infrared receiving lamp group.

Correspondingly, an array of size K may be set to record the emission gain value used by the infrared emission lamp corresponding to each signal strength value in Data[K], which may be specifically set to Gain[K].

In this way, by traversing the signal strength value corresponding to each element in Data[K], if the signal strength value corresponding to the kth element Data[k]<S, and Gain[k]<G_max, the transmission gain value corresponding to Gain[k] can be increased according to the preset step size to update the transmission gain value corresponding to Gain[k]. Where k is the element index number, S is the preset strength threshold, and G_max is the preset maximum gain threshold.

Return and restart the signal transmission of the next frame. The transmission gain value used by each infrared transmitter during signal transmission can be obtained from the updated Gain[K], and the received signal strength value is continued to be judged according to the above steps, and the transmission gain value of the corresponding infrared transmitter is adjusted until each infrared transmitter transmits the infrared signal according to the corresponding transmission gain value in Gain[K], and the signal strength value corresponding to each element in the obtained signal strength value array Data[K] is greater than or equal to S. Finally, the gain value array Gain[K] containing the target transmission gain value corresponding to each infrared transmitter can be obtained.

It should be noted that the same infrared transmitter may be lit multiple times during a frame scan, and the emission gain value used each time it is lit may be different, so that the target emission gain value corresponding to the same infrared transmitter at different times during a frame scan may be different.

In addition, when the embodiment of the present application is actually used, the touch detection process of the infrared touch screen can be divided into two stages. The first stage is the pre-scan stage, the purpose of which is to adjust the emission gain value of each infrared emitting lamp from the initial gain value to the target emission gain value, and the target emission gain values of different infrared emitting lamps may be different. In addition, the same infrared emitting lamp may be lit multiple times during a frame scan, and the target emission gain value used each time it is lit may also be different. This stage requires continuous scanning of dozens of frames to determine the optimal emission gain value corresponding to each emitting lamp at different scanning times, that is, the target emission gain value.

After the above-mentioned pre-scanning stage is finished, the second stage, that is, the normal working mode, can be entered. In some embodiments, after the above-mentioned S340, the transmission gain determination method provided in the embodiment of the present application may also include:

According to the target emission gain values respectively corresponding to the multiple infrared emission lamps, the multiple infrared emission lamps are controlled to emit infrared signals to perform touch detection.

Exemplarily, after obtaining the gain value array Gain[K] storing the target emission gain value corresponding to each infrared emission, etc., in the normal working mode, the multiple infrared emission lamps in the infrared touch screen can transmit infrared signals in the same signal transmission order as the pre-scanning stage and according to the target emission gain value stored in Gain[K]. In this way, the signal strength value of the infrared signal received by each group of infrared receiving lamps each time can reach the preset intensity threshold, and will not exceed the preset intensity threshold by too much, that is, the signal strength value of the received infrared signal is relatively consistent, thereby improving the touch detection effect of the infrared touch screen.

It should be noted that the application scenarios described in the above-mentioned embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. Ordinary technicians in this field can know that with the emergence of new application scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

Based on the same inventive concept, the present application also provides a transmission gain determination device, which is described in detail in conjunction with FIG.

FIG6 is a schematic diagram of the structure of a transmission gain determination device provided in one embodiment of the present application.

As shown in FIG6 , the transmission gain determination device 600 may include:

The emission control module 601 is used to control the multiple infrared emission lamps in the infrared touch screen to emit infrared signals in sequence according to their corresponding emission gain values;

The signal acquisition module 602 is used to acquire the signal strength values of the infrared signals received by the plurality of infrared receiving lamps corresponding to the plurality of infrared transmitting lamps, and obtain a signal strength array, wherein the signal strength value of the initial infrared signal received by the infrared receiving lamp is less than a preset strength threshold;

The gain adjustment module 603 is used to increase the emission gain value of the first infrared emission lamp according to a preset step size to update the emission gain value of the first infrared emission lamp when the first signal strength value in the signal strength array is less than the preset strength threshold and the emission gain value of the first infrared emission lamp corresponding to the first signal strength value is less than the preset maximum gain threshold, wherein the first signal strength value is any one of the signal strength values in the signal strength array;

The loop execution module 604 is used to return to execute the control of multiple infrared emitting lamps in the infrared touch screen to emit infrared signals in turn according to their corresponding emission gain values until the first signal strength value is not less than the preset intensity threshold, thereby obtaining target emission gain values corresponding to the multiple infrared emitting lamps respectively.

The transmission gain determination device 600 is described in detail below, as shown below:

In some of the embodiments, the initial emission gain value of the plurality of infrared emission lamps is a preset minimum gain value.

In some embodiments, the infrared touch screen includes multiple groups of infrared receiving light groups, and each group of the infrared receiving light groups includes multiple infrared receiving lights;

The transmission control module 601 includes:

The control submodule is used to control the plurality of infrared transmitting lamps corresponding to the plurality of infrared receiving lamp groups to transmit infrared signals in sequence according to their corresponding transmission gain values.

In some embodiments, the control submodule includes:

A target determination unit, used to determine a plurality of target infrared emitting lamps corresponding to a target infrared receiving lamp group, wherein the target infrared receiving lamp group is any one of the plurality of infrared receiving lamp groups;

The emission control unit is used to control the multiple target infrared emission lamps to emit infrared signals in sequence according to their corresponding emission gain values according to the arrangement order of the multiple target infrared emission lamps in the infrared touch screen.

In some implementations, the signal acquisition module 602 includes:

The intensity acquisition submodule is used to acquire the signal intensity value of the infrared signal received by each infrared receiving light group in the plurality of infrared receiving light groups, and obtain the signal intensity subarrays corresponding to the plurality of infrared receiving light groups respectively;

The array determination submodule is used to splice the signal strength subarrays corresponding to the multiple groups of infrared receiving light groups to obtain the signal strength array.

In some implementations, the transmission gain determination apparatus 600 further includes:

The touch detection module is used to control the multiple infrared emitting lamps to emit infrared signals according to the target emission gain values respectively corresponding to the multiple infrared emitting lamps after obtaining the target emission gain values respectively corresponding to the multiple infrared emitting lamps, so as to perform touch detection.

In some embodiments, the intensity acquisition submodule includes:

A summing processing unit, used for obtaining the sum of the signal strength values of the target infrared signals received by the multiple infrared receiving lamps in the target infrared receiving lamp group, and obtaining the signal strength value corresponding to the target infrared signal, wherein the target infrared receiving lamp group is any one of the multiple infrared receiving lamp groups, and the target infrared signal is an infrared signal emitted by any one of the multiple target infrared emitting lamps corresponding to the target infrared receiving lamp group;

The array generation unit is used to use the signal strength value corresponding to the infrared signal emitted by each target infrared emitting lamp as an array element to generate a signal strength sub-array corresponding to the target infrared receiving lamp group.

In some implementations, the transmission gain determination apparatus 600 further includes:

The gain determination module is used to determine the preset maximum gain threshold as the target emission gain value corresponding to the first infrared emission lamp when the emission gain value of the first infrared emission lamp corresponding to the first signal strength value is not less than the preset maximum gain threshold.

Therefore, by controlling the multiple infrared emitting lamps in the infrared touch screen to emit infrared signals according to their respective corresponding emission gain values, and obtaining the signal strength value of the infrared signal received by the infrared receiving lamp, a signal strength array is obtained, and then when any one of the signal strength values in the signal strength array, that is, the first signal strength value, is less than the preset strength threshold, and the emission gain value of the first infrared emitting lamp corresponding to the first signal strength value is less than the preset maximum gain threshold, the emission gain value of the first infrared emitting lamp is gradually increased in a step-by-step manner according to the preset step size, and the above process is repeated until the first signal strength value is not less than the preset strength threshold. In this way, in the embodiment of the present application, when each infrared transmitting lamp transmits an infrared signal according to the initial transmission gain value, the signal strength value of the initial infrared signal received by the infrared receiving lamp is less than the preset intensity threshold. On this basis, the transmission gain is gradually increased in a step-by-step manner until each infrared transmitting lamp transmits an infrared signal according to its own updated transmission gain value, and the first signal strength value of the infrared signal received by the infrared receiving lamp is greater than the preset intensity threshold. Therefore, the optimal target transmission gain value corresponding to each infrared transmitting lamp can be obtained, so that when different infrared transmitting lamps in the infrared touch screen use different target transmission gain values to transmit infrared signals, the intensity values of the infrared signals received by the infrared receiving lamps at different angles can just reach the preset intensity threshold, that is, the signal strength of the received infrared signals is relatively consistent, thereby improving the touch detection effect of the infrared touch screen.

FIG. 7 is a schematic diagram of the structure of an electronic device provided by an embodiment of the present application.

The electronic device 700 may include a processor 701 and a memory 702 storing computer program instructions.

Specifically, the above-mentioned processor 701 may include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application.

The memory 702 may include a large capacity memory for data or instructions. By way of example and not limitation, the memory 702 may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive, or a combination of two or more of these. Where appropriate, the memory 702 may include removable or non-removable (or fixed) media. Where appropriate, the memory 702 may be inside or outside the integrated gateway disaster recovery device. In a particular embodiment, the memory 702 is a non-volatile solid-state memory.

In certain embodiments, the memory may include a read-only memory (ROM), a random access memory (RAM), a magnetic disk storage medium device, an optical storage medium device, a flash memory device, an electrical, optical or other physical/tangible memory storage device. Thus, typically, the memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., a memory device) encoded with software including computer-executable instructions, and when the software is executed (e.g., by one or more processors), it is operable to perform the operations described with reference to the method according to one aspect of the present application.

The processor 701 implements any one of the transmission gain determination methods in the above embodiments by reading and executing computer program instructions stored in the memory 702 .

In some examples, the electronic device 700 may further include a communication interface 703 and a bus 710. As shown in Fig. 7, the processor 701, the memory 702, and the communication interface 703 are connected via the bus 710 and communicate with each other.

The communication interface 703 is mainly used to implement communication between various modules, devices, units and/or equipment in the embodiments of the present application.

Bus 710 includes hardware, software or both, and the parts of online data flow billing equipment are coupled to each other. For example, but not limitation, bus 710 may include accelerated graphics port (AGP) or other graphics bus, enhanced industrial standard architecture (EISA) bus, front-end bus (FSB), hypertransport (HT) interconnection, industrial standard architecture (ISA) bus, infinite bandwidth interconnection, low pin count (LPC) bus, memory bus, micro channel architecture (MCA) bus, peripheral component interconnection (PCI) bus, PCI-Express (PCI-X) bus, serial advanced technology attachment (SATA) bus, video electronics standard association local (VLB) bus or other suitable bus or two or more of these combinations. In appropriate cases, bus 710 may include one or more buses. Although the present application embodiment describes and shows a specific bus, the present application considers any suitable bus or interconnection.

Exemplarily, the electronic device 700 may be a mobile phone, a tablet computer, a laptop computer, a PDA, an in-vehicle electronic device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA), etc.

The electronic device 700 can execute the transmission gain determination method in the embodiment of the present application, thereby realizing the transmission gain determination method and device described in combination with Figures 1 to 6.

In addition, in combination with the transmission gain determination method in the above-mentioned embodiment, the embodiment of the present application may provide a computer-readable storage medium for implementation. The computer-readable storage medium stores computer program instructions; when the computer program instructions are executed by the processor, any one of the transmission gain determination methods in the above-mentioned embodiments is implemented. Examples of computer-readable storage media include non-transitory computer-readable storage media, such as portable disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memory), portable compact disk read-only memories (CD-ROM), optical storage devices, magnetic storage devices, etc.

It should be clear that the present application is not limited to the specific configuration and processing described above and shown in the figures. For the sake of simplicity, a detailed description of the known method is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present application is not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between the steps after understanding the spirit of the present application.

The functional blocks shown in the above-described block diagram can be implemented as hardware, software, firmware or a combination thereof. When implemented in hardware, it can be, for example, an electronic circuit, an application specific integrated circuit (ASIC), appropriate firmware, a plug-in, a function card, etc. When implemented in software, the elements of the present application are programs or code segments that are used to perform the required tasks. The program or code segment can be stored in a machine-readable medium, or transmitted on a transmission medium or a communication link by a data signal carried in a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, optical fiber media, radio frequency (RF) links, etc. The code segment can be downloaded via a computer network such as the Internet, an intranet, etc.

It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, this application is not limited to the order of the above steps, that is, the steps can be performed in the order mentioned in the embodiments, or in a different order from the embodiments, or several steps can be performed simultaneously.

The above reference is according to the method of the embodiment of the present application, the flow chart of the device (system) and the computer program product and/or the block diagram described various aspects of the present application.It should be understood that each square frame in the flow chart and/or the block diagram and the combination of each square frame in the flow chart and/or the block diagram can be realized by computer program instructions.These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer or other programmable data processing device to produce a machine so that these instructions executed by the processor of the computer or other programmable data processing device enable the realization of the function/action specified in one or more square frames of the flow chart and/or the block diagram.Such a processor can be but is not limited to a general-purpose processor, a special-purpose processor, a special application processor or a field programmable logic circuit.It can also be understood that each square frame in the block diagram and/or the flow chart and the combination of the square frames in the block diagram and/or the flow chart can also be realized by the dedicated hardware that performs the specified function or action, or can be realized by the combination of dedicated hardware and computer instructions.

The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.

Claims (15)

1. A method for determining a transmission gain, comprising:

   Control multiple infrared transmitting lamps in the infrared touch screen to transmit infrared signals in sequence according to their corresponding transmitting gain values;

   Obtain signal strength values of infrared signals received by a plurality of infrared receiving lamps corresponding to the plurality of infrared transmitting lamps to obtain a signal strength array;

   When the first signal strength value in the signal strength array is less than the preset strength threshold, and the emission gain value of the first infrared emission lamp corresponding to the first signal strength value is less than the preset maximum gain threshold, the emission gain value of the first infrared emission lamp is increased according to a preset step size to update the emission gain value of the first infrared emission lamp, wherein the first signal strength value is any one of the signal strength values in the signal strength array;

   Return to execute the control of multiple infrared emitting lamps in the infrared touch screen to emit infrared signals in sequence according to their corresponding emission gain values until the first signal strength value is not less than the preset intensity threshold, and obtain target emission gain values corresponding to the multiple infrared emitting lamps respectively.
2. The method according to claim 1, wherein the initial emission gain value of the plurality of infrared emission lamps is a preset minimum gain value.
3. The method according to claim 1, wherein the infrared touch screen includes a plurality of infrared receiving light groups, and each of the infrared receiving light groups includes a plurality of infrared receiving light groups;

   The controlling of the plurality of infrared emitting lamps in the infrared touch screen to emit infrared signals in sequence according to their corresponding emission gain values comprises:

   The plurality of infrared transmitting lamps respectively corresponding to the plurality of infrared receiving lamp groups are controlled to transmit infrared signals in sequence according to their corresponding transmission gain values.
4. The method according to claim 3, wherein the controlling the plurality of infrared transmitting lamps corresponding to the plurality of infrared receiving lamp groups to transmit infrared signals in sequence according to their respective corresponding transmission gain values comprises:

   Determine a plurality of target infrared emitting lamps corresponding to a target infrared receiving lamp group, wherein the target infrared receiving lamp group is any one infrared receiving lamp group among the plurality of infrared receiving lamp groups;

   According to the arrangement order of the multiple target infrared emitting lamps in the infrared touch screen, the multiple target infrared emitting lamps are controlled to emit infrared signals in sequence according to their respective corresponding emission gain values.
5. The method according to claim 3, wherein the step of obtaining the infrared signal strength values received by the plurality of infrared receiving lamps corresponding to the plurality of infrared transmitting lamps to obtain a signal strength array comprises:

   Acquire the signal strength value of the infrared signal received by each infrared receiving light group in the plurality of infrared receiving light groups, and obtain the signal strength subarrays respectively corresponding to the plurality of infrared receiving light groups;

   The signal strength sub-arrays corresponding to the multiple groups of infrared receiving light groups are spliced to obtain the signal strength array.
6. The method according to claim 5, wherein the step of obtaining the signal strength value of the infrared signal received by each infrared receiving light group in the plurality of infrared receiving light groups to obtain the signal strength subarrays respectively corresponding to the plurality of infrared receiving light groups comprises:

   Obtaining the sum of the signal strength values of the target infrared signal received by the multiple infrared receiving lamps in the target infrared receiving lamp group, and obtaining the signal strength value corresponding to the target infrared signal, wherein the target infrared receiving lamp group is any one of the multiple infrared receiving lamp groups, and the target infrared signal is an infrared signal emitted by any one of the multiple target infrared emitting lamps corresponding to the target infrared receiving lamp group;

   The signal strength value corresponding to the infrared signal emitted by each target infrared emitting lamp is used as an array element to generate a signal strength sub-array corresponding to the target infrared receiving lamp group.
7. A transmission gain determination device, comprising:

   An emission control module is used to control multiple infrared emission lamps in the infrared touch screen to emit infrared signals in sequence according to their corresponding emission gain values;

   A signal acquisition module, used to acquire signal strength values of infrared signals received by a plurality of infrared receiving lamps corresponding to the plurality of infrared transmitting lamps, and obtain a signal strength array;

   a gain adjustment module, configured to increase the emission gain value of the first infrared emission lamp according to a preset step length to update the emission gain value of the first infrared emission lamp when the first signal strength value in the signal strength array is less than the preset strength threshold and the emission gain value of the first infrared emission lamp corresponding to the first signal strength value is less than a preset maximum gain threshold, wherein the first signal strength value is any one of the signal strength values in the signal strength array;

   A loop execution module is used to return to execute the control of multiple infrared emitting lamps in the infrared touch screen to emit infrared signals in turn according to their corresponding emission gain values until the first signal strength value is not less than the preset intensity threshold, thereby obtaining target emission gain values corresponding to the multiple infrared emitting lamps respectively.
8. The device according to claim 7, wherein the initial emission gain value of the plurality of infrared emission lamps is a preset minimum gain value.
9. The device according to claim 7, wherein the infrared touch screen includes a plurality of infrared receiving light groups, and each of the infrared receiving light groups includes a plurality of infrared receiving light groups;

   The launch control module comprises:

   The control submodule is used to control the plurality of infrared transmitting lamps corresponding to the plurality of infrared receiving lamp groups to transmit infrared signals in sequence according to their corresponding transmission gain values.
10. The device according to claim 9, wherein the control submodule comprises:

    A target determination unit, used to determine a plurality of target infrared emitting lamps corresponding to a target infrared receiving lamp group, wherein the target infrared receiving lamp group is any one of the plurality of infrared receiving lamp groups;

    The emission control unit is used to control the multiple target infrared emission lamps to emit infrared signals in sequence according to their corresponding emission gain values according to the arrangement order of the multiple target infrared emission lamps in the infrared touch screen.
11. The device according to claim 9, wherein the signal acquisition module comprises:

    The intensity acquisition submodule is used to acquire the signal intensity value of the infrared signal received by each infrared receiving light group in the plurality of infrared receiving light groups, and obtain the signal intensity subarrays corresponding to the plurality of infrared receiving light groups respectively;

    The array determination submodule is used to splice the signal strength subarrays corresponding to the multiple groups of infrared receiving light groups to obtain the signal strength array.
12. The apparatus according to claim 11, wherein the intensity acquisition submodule comprises:

    A summing processing unit, used for obtaining the sum of the signal strength values of the target infrared signal received by the multiple infrared receiving lamps in the target infrared receiving lamp group, and obtaining the signal strength value corresponding to the target infrared signal, wherein the target infrared receiving lamp group is any one of the multiple infrared receiving lamp groups, and the target infrared signal is an infrared signal emitted by any one of the multiple target infrared emitting lamps corresponding to the target infrared receiving lamp group;

    The array generation unit is used to use the signal strength value corresponding to the infrared signal emitted by each target infrared emitting lamp as an array element to generate a signal strength sub-array corresponding to the target infrared receiving lamp group.
13. An electronic device comprises: a processor and a memory storing computer program instructions;

    When the processor executes the computer program instructions, the steps of the transmission gain determination method according to any one of claims 1 to 6 are implemented.
14. A computer-readable storage medium having computer program instructions stored thereon, wherein the computer program instructions, when executed by a processor, implement the steps of the transmission gain determination method according to any one of claims 1 to 6.
15. A computer program product, when the instructions in the computer program product are executed by a processor of an electronic device, enables the electronic device to perform the steps of the transmission gain determination method as described in any one of claims 1 to 6.

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