TW201425974A - Apparatus and method for gesture detecting - Google Patents

Abstract

A electronic device and associated gesture detecting method are provided. The electronic device includes a gesture detecting module, and a broadcast module. The gesture detecting module includes a signal generating unit, a radar antenna, and a determine unit. The gesture detecting method includes steps of: periodically generating an original radar signal in a pulse format; transmitting the original radar signal, wherein a reflecting radar signal is generated when the original radar signal reaches a target object; receiving the reflecting radar signal; determining an operation mode corresponding to movement of the target object, according to the original and the reflecting radar signals; proceeding an operation according to the operation mode.

Description

Attitude sensing device and method

The present invention relates to an attitude sensing apparatus and method, and more particularly to an attitude sensing apparatus and method for determining an operational type using a radar signal.

Please refer to FIG. 1A, which is a schematic diagram of a smart phone provided according to the conventional technology. In recent years, the smart phone 11 has provided more and more functions, but the smart phone 11 must be portable, so the size of the display screen 11a cannot be too large. Limited by the size of the display screen 11a, the smart phone 11 may display the function options in different display pages, in addition to reducing the layout of the function options and presenting them as one display page.

Based on convenience considerations, many smart phones 11 today provide a finger-touch operation. However, when the finger is touched, if the pattern of the function option is too small or the arrangement is too dense, the user's finger can easily touch other function options at the same time.

In order to improve this deficiency, one way to use the technique is to present the function options in different display pages by means of classification or sequencing. Although this approach can reduce the chance of misunderstanding, users must repeatedly find the features they want to use on each page, so it is still not convenient.

Please refer to FIG. 1B, which is a schematic diagram of a pico projector provided according to conventional techniques. A miniature projector that is relatively small in size and easy to carry has recently attracted considerable attention in the market. In addition to being able to be used independently as a projector, the pico projector 13 can also be embedded in various portable devices.

Although the pico projector 13 can project a wide range of display images through the lens 13b, if the user needs to further adjust the content of the display screen, the small-sized pico projector 13 has a problem similar to that of the smart phone. That is, the range in which the pico projector 13 can provide the operation interface 13a is too small for the user to operate.

In other words, whether the pico projector is operated in an independent manner or integrated into a portable device, the conventional micro-projector provides only a large range of display areas, but the range of its operation interface is still too narrow and not easy. control.

Further, some conventional technologies provide non-touch sensing functions by means of image sensing. In short, this method uses the photographic device to sense the operation of the user in a three-dimensional space, so that the user's operation behavior is not limited to a narrow touch plane.

However, this approach must be used in conjunction with the camera. As a result, in addition to the substantial increase in cost, the erection position of the photographic device will also limit the range available for sensing. Therefore, the practice of providing non-touch input by image sensing is not appropriate for portable devices.

According to the foregoing description, it can be found that with the different application requirements, the current non-touch input method is still not mature enough and needs to be developed.

The present invention is an electronic device, comprising: an attitude sensing module, comprising: a signal generating unit, periodically generating an original radar signal in a pulse wave format; and a radar antenna electrically connected to the signal generating unit, Transmitting the original radar signal and receiving a corresponding reflected radar signal when the original radar signal contacts an object to be tested; and a determining unit electrically connected to the signal generator and the radar antenna, Determining, according to the original radar signal and the reflected radar signal, an operation command corresponding to the position change of the object to be tested; and a play module electrically connected to the attitude sensing module, according to the operation The instruction performs a corresponding operational behavior.

Another embodiment of the present invention is an attitude sensing method applied to an electronic device, comprising the steps of: periodically generating an original radar signal in a pulse wave format; transmitting the original radar signal, wherein the original radar signal When contacting an object to be measured, correspondingly generating a reflected radar signal; receiving the reflected radar signal; determining an operation type corresponding to the position change of the object to be tested according to the original radar signal and the reflected radar signal; According to the operation type, a corresponding operation behavior is performed.

In order to better understand the above and other aspects of the present invention, the preferred embodiments are described below, and in conjunction with the drawings, the detailed description is as follows:

The invention provides a non-touch sensing method for integrating a miniaturized radar and a sensing unit into an electronic device. Through miniaturized radar and sensing After transmitting the original radar signal and receiving the reflected radar signal, the unit further determines the user's attitude change according to the Doppler phenomenon of the reflected radar signal. For convenience of description, the following embodiments mainly take a portable device as an example.

First, the electronic device continuously transmits the original radar signal to the object to be tested by means of the pulse wave signal by the miniaturized radar. When the original radar signal encounters the object to be tested (for example, the gesture of the user), the corresponding back transmission is generated. Pulse signal.

When the original radar signal encounters a static or dynamic object, the frequency of the reflected radar signal transmitted back to the sensing unit is also different, and the present invention facilitates the use of such a Doppler phenomenon to determine the user's gesture operation.

The following assumes that the user's gesture is the object to be tested, and explains how to use the Doppler phenomenon of the radar signal to determine four different types of operation gestures.

In the following figures, the arrow pointing to the right represents the direction of travel of the original radar signal, and the arrow to the left represents the direction of travel of the reflected radar signal. When the original radar signal is sent to the right, the reflected radar signal generated by the reflection will change in frequency with the moving state of the object 22 to be tested.

Please refer to FIG. 2, which is a schematic diagram of sensing a still gesture using a Doppler phenomenon of a radar signal.

First, the original radar signal is generated in a fixed frequency manner using the miniaturized radar antenna 21. The original radar signal will generate a reflected radar signal after it contacts the object 22 to be measured during the traveling process.

In Figure 2, the user's gesture remains static. At this time, the frequencies of the original radar signal and the reflected radar signal are identical to each other. In other words, if the object to be tested encountered by the original radar signal is stationary, then bounce back. The resulting reflected radar signal has the same frequency as the original radar signal.

Please refer to FIG. 3, which is a schematic diagram of sensing the gesture moving to the left by using the Doppler phenomenon of the radar signal. The original radar signal produced by the miniaturized radar maintains the same frequency as in Figure 2, i.e., produces the original radar signal at the same frequency.

Comparing Figures 2 and 3, it can be seen that if the object 22 to be measured advances in the direction of the miniaturized radar antenna 21, the corresponding reflected radar signal has a higher frequency. In other words, the frequency of the reflected radar signal will increase.

See Figure 4A, which is a schematic diagram of the use of a radar signal to sense a gesture moving to the right. If the object is moving away from the original radar signal, the frequency of the reflected radar signal will be lower than the frequency of the original radar signal.

In the above, the direction of movement of the gesture affects the frequency of the reflected radar signal. In addition, the speed at which the gesture moves will also affect the frequency of the reflected radar signal. See Figure 4B, which is a schematic diagram of using a radar signal to sense a gesture moving quickly to the right. In Fig. 4B, the frequency of the reflected radar signal is not only lower than the frequency of the original radar signal, but the frequency of the reflected radar signal of Fig. 4B is also lower than that of the reflected radar signal of Fig. 4A.

According to the foregoing figure, when there is relative motion between the object to be tested and the miniaturized radar, the frequency of the reflected radar signal also changes.

Hereinafter, the embodiment of the inventive concept is further described. How to use the attitude sensing module to generate a radar signal in a low power pulse manner, and then determine whether the object to be tested (for example, a user's gesture) generates a motion according to the reflected radar signal. . In practical applications, the movement of the object to be tested can be further used in conjunction with the operation interface provided by the portable device.

Here, the gesture movement in a single direction is taken as an example, but in practical applications, the gesture sensing module can also be used to sense multiple objects to be tested and how they move. Furthermore, the moving direction of the object to be tested is not limited to the horizontal direction, and may be any direction of the three-dimensional space.

Please refer to FIG. 5, which is a schematic diagram of transmitting an original radar signal by using an attitude sensing module and receiving a reflected radar signal. The attitude sensing module 51 employed in the electronic device of the present invention includes a signal generating unit 53, which is electrically connected to each other, a radar antenna 57, and a judging unit 55.

The signal generating unit 53 periodically generates the original radar signal in a pulse wave format. For example, an original radar signal in a pulse wave format is generated according to an ultra wideband (UWB) technology.

Next, the original radar signal is transmitted to the object 59 to be measured by the radar antenna 57. When the original radar signal is in contact with the surface of the object 59 to be measured, the surface of the object 59 to be measured will generate a reflected radar signal. As described above, the frequency and the amount of vibration of the reflected radar signal vary depending on the movement of the object 59 to be measured.

The receiver 533 obtains the vibration change of the reflected radar signal through the radar antenna 57, and transmits the vibration change of the reflected radar signal to the judging unit 55, and the judging unit 55 performs further analysis and interpretation. In this way, the motion of the object to be tested is used as a trigger source, and the motion of the object to be tested can be continuously received as the basis for the judgment of the attitude sensing.

The determining unit 55 includes a delay unit 531, a receiver 533, a mixer 535, and a signal processor 537.

The delay 531 is electrically connected to the signal generating unit 53; the receiver 533 is electrically connected to the radar antenna 57; and the mixer 535 is electrically connected to the receiver 533. And a delay 531; and the signal processor 537 is electrically connected to the mixer 535.

The delay 531 delays the original radar signal for a period of time to obtain the delayed original radar signal; the receiver 533 is used to temporarily store the reflected radar signal received by the radar antenna 57; and the delayed original radar is transmitted through the mixer 535. After the signal is mixed with the reflected radar signal, the summed radar signal is obtained; and the signal processor 537 determines the change of the relative position of the object to be tested and the attitude sensing module according to the summed radar signal.

First, the original radar signal is generated by the signal generating unit 53 using the radar signal, and this original radar signal is supplied to the radar antenna 57 and the delayer, respectively.

When the original radar signal is transmitted to the object 59 to be measured by the radar antenna 57, the surface of the object 59 to be measured will generate a reflected pulse wave signal, thereby forming a reflected radar signal. Next, the radar antenna 57 will receive the reflected radar signal and provide a reflected radar signal to the receiver 533.

On the other hand, the original radar signal supplied from the delay 531 to the mixer 535 is generated by delaying the original radar signal supplied from the signal generating unit 53 by a period of time Δt. In practical applications, the length of the delay time Δt provided by the delay 531 can be flexibly adjusted according to the type, volume, position, and the like of the system application or the object 59 to be tested.

Next, the mixer 535 mixes based on the reflected radar signal provided by the receiver 533 and the delayed original radar signal provided by the delay 531 to generate a mixed radar signal.

Then, the summed radar signal is processed by the signal processor 537 by a nano-second pulse near-field sensor (NPNS). That is, further interpretation is added The content of the signal (the amount of vibration) represented by the total radar signal, and the type of operation corresponding to the change in the amount of vibration.

When the signal processor 537 determines the type of operation corresponding to the change in the amount of vibration, the method is: changing the plurality of vibration amounts pre-stored with the database, the position change of the plurality of objects to be tested, and the correspondence between the plurality of operation instructions. In comparison, the type of operation corresponding to the change in the position of the object to be tested is judged accordingly.

The pulse signal used by the ultra-wideband technology can occupy a bandwidth of several GHz, because the ultra-short pulse is used, and the transmission power of the UWB device is small. Due to the relatively low power consumption, ultra-wideband technology is well suited for use in portable devices or with other types of electronic devices.

Next, the present invention senses the reflected radar signal generated by the ultra-wideband technology through the nanosecond pulse near-field sensing technology, and further determines the movement of the object to be tested.

Please refer to Fig. 6, which is a schematic diagram showing the original radar signal, the delayed original radar signal, and the reflected radar signal.

The first column represents the original radar signal generated by the signal generating unit; the second column represents the original radar signal delayed by a period of time Δt; and the third column represents the reflected radar signal received through the antenna.

There is a time difference between the original radar signal generated directly by the signal generating unit and the reflected radar signal. Therefore, the present invention first delays the original radar signal for a period of time, and sums the vibration changes of the corresponding delayed original radar signal on the time axis and the returned reflected radar signal to obtain the aggregated radar signal.

As mentioned earlier, the reflected radar signal changes the frequency and amount of vibration following the movement of the object to be tested. Accordingly, the sum of the vibration changes of the delayed original radar signal and the reflected radar signal will also vary with the moving direction and moving speed of the object to be tested.

According to a preferred embodiment of the present invention, a low-power pulse wave is emitted through the miniaturized radar antenna, and the user's posture change is judged based on the displacement of the sensing target (the object to be measured, the user's gesture change). It should be noted that the type of gesture that the attitude sensing method can sense is quite diverse and is not limited to the aforementioned example of lateral movement.

Accordingly, the present invention utilizes the Doppler effect of the radar signal to first sense and record the operational pattern of the object to be measured and the corresponding vibration amount change. Then, when the non-touch mode attitude sensing is performed, the movement information of the object to be tested is determined according to the comparison result between the actual sensing result and the recorded data. For example: whether the object to be tested is moving, and the actual moving direction, moving speed, and the like. Therefore, the present invention can drive a wireless device to perform image switching or other functions in a non-contact manner.

Please refer to FIG. 7A, which is a schematic diagram of a gesture sensing method applied to a portable device. The signal generating unit 73 at the upper left of this figure cooperates with the oscillator to generate the original radar signal in the pulse wave format. The original radar signal is transmitted to the radar antenna 77 via the filter 741 and the switch 743.

The radar antenna 77 is used to transmit the original radar signal and receive the reflected radar signal. The reflected radar signal is received by the receiver 733 and then transmitted to one end of the mixer 735 via the amplifier 747.

At the other end of the mixer 735, the original radar signal transmitted via the delay 731, the switch 743, and the amplifier 745 is received.

The mixer then transmits the reflected radar signal and the result of the delayed original radar signal (the summed radar signal) to the processor 737. Next, the signal processor 737 determines a change in the relative position of the object to be tested and the attitude sensing module based on the summed radar signal.

In addition, through the use of the storage module 749, a database for the electronic device to interpret the attitude sensing can be provided. That is, the storage module provides a plurality of pre-stored plurality of vibration amount changes and corresponding plurality of posture operation types.

Thereafter, the controller 76 further provides the output of the signal processor 737 and the database provided by the storage module 749 for use by the upper application software.

Hereinafter, the circuit implementation of FIG. 7A will be further described using FIG. 7B. The component numbers of Fig. 7B correspond to Fig. 7A, and further indicate the wiring relationship of the circuit components. Furthermore, regarding the signal transmission relationship between the respective modules, the description of FIG. 8 can be further referred to.

Please refer to FIG. 8 , which is a flow chart of applying the attitude sensing method to the attitude sensing module according to a preferred embodiment of the present invention.

First, the original radar signal is generated in the pulse wave format by the signal generating unit 73 (step S71); secondly, the original radar signal is transmitted through the radar antenna 77 (step S73).

When the original radar signal touches the object to be tested, the surface of the object to be tested will correspondingly generate a reflected radar signal. It should be noted that as the object to be measured moves, the frequency and amplitude of the reflected radar signal will also change. That is, the original radar signal changes depending on the position of the object to be measured, thereby generating a reflected radar signal (step S74).

Then, the reflected radar signal is received through the radar antenna 77 and the receiver 733 (step S75); the attitude sensing module determines the operation type corresponding to the change of the position of the object to be tested according to the original radar signal and the reflected radar signal (step S77); and controlling the electronic device to perform a corresponding operational behavior according to the operation type (step S79).

Please refer to Fig. 9, which is a flow chart for further explaining step S77 of Fig. 8.

Step S77 includes the following steps: delaying the original radar signal by a delay device 731 to obtain a delayed original radar signal (step S771); using the mixer 735 to vibrate the delayed original radar signal and the reflected radar signal After the quantity change is mixed, the summed radar signal is obtained (step S773); the position change of the object to be tested is determined according to the summed radar signal (step S775); and the database is searched for corresponding to the position change of the object to be tested. This operation type (step S777).

In the above, if the electronic device provides the storage module, the process of FIG. 9 can further establish a database in the storage module. Through the establishment of the database, a plurality of pre-stored vibration quantity changes and corresponding plurality of posture operation types are provided in the storage module. Therefore, in step S777, the operation type corresponding to the change of the position of the object to be tested can be determined through the table lookup, the index correspondence, and the hash mode.

Figure 10 is a block diagram of an electronic device of the present invention. In this figure, the electronic device 80 includes an attitude sensing module 81, an operation module 83, and a storage module 85 that are electrically connected to each other. The use of the attitude sensing module 81 will not be repeated here.

The storage module 85 is configured to provide a plurality of vibration variables for storing A database of the correspondence between the positional changes of a plurality of objects to be tested and a plurality of operational commands. Accordingly, the determination unit in the attitude sensing module 81 can determine the posture operation corresponding to the change of the sensed vibration amount by means of looking up the table and indexing the data pre-stored in the storage module.

In practical applications, the type of the operation module 83 may vary depending on the use of the electronic device 80.

For example, the operation module 83 can be a display panel that controls the presentation manner of the display screen in response to an operation command. For example, when the result of the attitude sensing is that the user's gesture is swung to the right, the signal processor determines the action of the display screen to change pages or replace the channel according to the generated vibration amount change.

Alternatively, the operation module 83 can be a speaker that controls the playback volume in response to an operation command. For example, when the result of the gesture sensing is that the user's gesture is swung to the right, the amount of vibration generated is used to represent that the playback volume is louder. Of course, the operation module 83 is not limited to the display panel and the playback module. For example, if the portable device is a pico projector, the playback module 83 refers to a playback component for projecting a screen.

In the present invention, the attitude sensing module uses a nanosecond pulse near-field sensing technique to perform posture determination in a relatively simple manner. That is to say, since the present invention is directed to the summation of the vibration amount of the radar signal, complicated calculation is required, and the amount of calculation required for judging the operation type can be saved, and the sensing speed can be improved.

Figure 11 is a schematic diagram of determining the type of gesture operation with a storage module.

The first column in the figure represents the class in which the user actually performs the gesture operation. type. The second column represents the change in the vibration amount of the summed radar signal obtained by summing the delayed original radar signal and the reflected radar signal. The third column represents the corresponding operational behavior that may be provided on the display panel.

When the user's gesture is to swing to the left, the change in the amount of vibration of the sum signal will correspond to the change in the first amount of vibration. At this time, according to the record of the database, the multimedia playing behavior actually corresponding to the vibration mode can be judged. For example, if the operation module is a display panel, the cursor of the display screen may be moved to the left, thereby displaying a left shift track.

When the user's gesture is to swing to the right, the change in the amount of vibration of the sum signal will correspond to the change in the second amount of vibration. At this time, according to the record of the database, the multimedia playing behavior actually corresponding to the vibration mode can be judged. For example, if the operation module is a display panel, the cursor of the display screen may be moved to the right, thereby displaying a right shift track.

When the user's gesture is to swing upward, the change in the amount of vibration of the sum signal will correspond to the change in the third amount of vibration. At this time, according to the record of the database, the multimedia playing behavior actually corresponding to the vibration mode can be judged. For example, if the operation module is a display panel, the cursor of the display screen may be moved to the right, thereby displaying an upward movement track.

Of course, the type of the gesture operation performed by the user is not limited thereto, and the correspondence between the type of the gesture operation and the corresponding operation behavior provided by the display panel is not necessarily limited thereto. For example, when the gesture of the user is waving upward, although the third vibration amount is also changed, the multimedia playing behavior is to weaken the playing volume of the speaker.

In still further applications, the attitude sensing module can include a plurality of pulse generators and a plurality of receivers. That is, multiple sets of original mines can be provided Signal and reflection radar signals, which enhance the accuracy of attitude sensing.

Next, how to sense the gesture of the user when a plurality of posture sensing modules are arranged in an array will be described. When the electronic device uses multiple attitude sensing modules, it may further include a control module. The control module is electrically connected to each of the attitude sensing modules, so that the control module receives and summarizes the information generated by each of the attitude sensing modules. The operation and judgment of this part can be freely applied by the relevant fields in this case, and thus will not be described.

The following assumes that the nine attitude sensing modules are numbered separately and arranged in a 3*3 manner. Therefore, the first column is the first attitude sensing module 101, the second attitude sensing module 102, and the third attitude sensing module 103 from left to right; the second column is the fourth posture from left to right. The sensing module 104, the fifth attitude sensing module 105, and the sixth attitude sensing module 106; and the third column is the seventh attitude sensing module 107 and the eighth attitude sensing module from left to right respectively. Group 108, ninth attitude sensing module 109.

The following example assumes that the number of posture sensing modules is nine, but in actual application, the number and arrangement of the attitude sensing modules are not limited thereto.

Referring to FIG. 12A, the attitude sensing module is arranged in an array in a top view direction, and the user is sensed to swing the gesture from left to right. When the user's gesture is swung from left to right, the first attitude sensing module 101, the fourth attitude sensing module 104, and the seventh attitude sensing module 107 first sense a relatively strong vibration amount change.

Then, the second attitude sensing module 102, the fifth attitude sensing module 105, and the eighth attitude sensing module 108 sense a relatively strong vibration amount change.

Thereafter, the third attitude sensing module 103 and the sixth attitude sensing module 106. The ninth attitude sensing module 109 senses a relatively strong vibration quantity change.

Therefore, once the control module determines that the attitude sensing module in the electronic device has the aforementioned vibration amount change, the information inside the storage module can be referred to, and the user's gesture is determined to be left and right.

Referring to FIG. 12B, the attitude sensing module is arranged in an array in a top view direction, and the user is sensed to swing the gesture from right to left. At this time, the order of change of the vibration amount of each attitude sensing module received by the control module will be reversed from FIG. 12A.

Referring to FIG. 12C, the attitude sensing module is arranged in an array in a top view direction, and the user is sensed to swing the gesture from top to bottom.

Similarly, the attitude sensing module at this time will preferentially sense a large amount of vibration according to the first attitude sensing module 101, the second attitude sensing module 102, and the third attitude sensing module 103; The fourth attitude sensing module 104, the fifth attitude sensing module 105, and the sixth attitude sensing module 106 sense a large amount of vibration; and finally, the seventh attitude sensing module 107 and the eighth posture sense The measurement module 108 and the ninth attitude sensing module 109 sense the order of the large vibration amount and determine that the user's gesture is from top to bottom.

Referring to FIG. 12D, the attitude sensing module is arranged in an array in a top view direction, and the user is sensed to swing the gesture from bottom to top. At this time, the order of change of the vibration amount of each attitude sensing module received by the control module will be reversed from the 12Cth map.

Referring to FIG. 13 , the gesture sensing module is arranged in an array in a side view direction, and the user is sensed to swing the gesture from far to near. Since the attitude sensing modules are arranged in an array, this pattern is only drawn The side of the first attitude sensing module 101, the second attitude sensing module 102, and the third attitude sensing module 103.

When the user's gesture is far from the attitude sensing module, the vibration frequency received by each attitude sensing module will increase. At this point, the control module can determine that the user's gesture is moving in a far and near direction.

When the number of attitude sensing modules is increased, the types of operational behaviors that can be obtained by integrating the various attitude sensing modules are also increased. In practical applications, the number of attitude sensing modules can be determined according to the required degree of sensing precision.

Please refer to FIG. 14, which is a schematic diagram of embedding a gesture sensing module in a smart phone according to an embodiment of the invention.

This figure assumes that the attitude sensing module 92 is disposed on the front side of the smart phone 91. Of course, the position actually set by the attitude sensing module 92 is not limited thereto.

Similarly, the attitude sensing module can also be installed in other portable devices such as micro projectors and tablet computers.

According to the concept of the present invention, the displacement judgment information actually using the nanosecond pulse near-field sensing technology, and how to use the application software and the peripheral device can be elastically changed according to the system requirements.

For example, the portable device provides an identity recognition function, and when the user's operation posture conforms to the preset operation posture, the identity recognition and subsequent operation behavior can be performed. Alternatively, the software having the positioning function is provided, and according to the trajectory of the gesture movement, the corresponding movement trajectory is displayed on the display panel of the portable device while the gesture is moving.

In addition, the portable device can also provide the function of data transmission, and the gesture information detected by the attitude sensing module is transmitted through a wireless or wired transmission mode. Give other devices.

The attitude sensing method of the present invention transmits a nanosecond pulse signal by using an ultra-wideband technology, and the near field sensing technology of the pulse signal is suitable for being applied to a portable device such as a smart phone or a micro projector. It is applied to other types of electronic devices. For example, the electronic device may be a display for playing a television program, an elevator device, or an intercom device.

Taking a display for playing a television program as an example, it is possible to control the display to perform channel adjustment, volume adjustment, and the like in response to the operation mode. This part of the multimedia-related operational behavior is similar to the portable device, not detailed here.

Taking the intercom device as an example, when the attitude sensing method of the present invention is used, the intercom device can be controlled to perform a call operation according to the operation mode.

For example, when the walkie-talkie having the posture sensing method of the present invention is installed in a hospital, the medical staff may not be suitable for directly pressing the talk button of the walkie-talkie because of wearing gloves, or some patients may not get up and press the walkie-talkie call because they are inconvenient on the hospital bed. When you press the button, you need to ask the medical staff for help.

If the walkie-talkie can make a call in response to the gesture of the medical staff or the patient, the inconvenience of operating the intercom device in this case can be improved.

Taking the elevator equipment as an example, when the attitude sensing method of the present invention is used, the elevator equipment can be controlled to perform the lifting operation according to the operation type. Similarly, in the case of a hospital, since patients visiting a hospital may have different germs or viruses, if the elevator can operate in a non-touch manner, the situation of cross-infection can also be reduced.

For example, when it is sensed that the user's waving gesture is facing upward, the elevator is judged to face upward; when the distance of the user's waving gesture is sensed, the electronic device is getting closer and closer to the electronic device. When it is determined that the elevator door should be kept open; when it is sensed that the distance of the user's waving gesture is getting farther and farther, it is judged that the elevator door can be closed; or, the user is judged to move the gesture of the gesture in the air, and then the elevator is determined to go. Floor and so on.

As mentioned above, the ultra-wideband technology provides an ultra-wideband technology with nanosecond pulse near-field sensing technology to achieve attitude sensing in a non-contact manner. Furthermore, when the method of the present invention is adopted, not only the space problem in the touch operation can be improved, but also the advantages of small size, low power consumption, low cost, and the like. Furthermore, the invention can sense the distance of up to 5 meters, can simultaneously sense the movement of a plurality of objects to be tested, and can still recognize the movement mode of the object to be tested when the moving speed of the object to be tested is fast.

In summary, when the present invention is used in conjunction with various types of electronic devices, the operation of the electronic device can be simplified in response to various occasions.

In conclusion, the present invention has been disclosed in the above preferred embodiments, and is not intended to limit the present invention. A person skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

11, 91‧‧‧ smart phones

11a‧‧‧display screen

13‧‧‧Micro Projector

13a‧‧‧Operator interface

13b‧‧‧ lens

21, 57, 77‧‧‧ radar antenna

22, 59‧‧‧ objects to be tested

51, 81, 92‧‧‧ attitude sensing module

53, 73‧‧‧Signal generating unit

55‧‧‧judging unit

531, 731‧‧‧ retarder

533, 733‧‧‧ Receiver

535, 735‧‧‧ Mixer

537, 737‧‧‧ signal processor

741‧‧‧ filter

743‧‧‧ switch

745, 747‧‧ amp amplifier

76‧‧‧ Controller

80‧‧‧Electronic devices

83‧‧‧Operating module

749, 85‧‧‧ storage modules

101‧‧‧First attitude sensing module

102‧‧‧Second attitude sensing module

103‧‧‧3rd attitude sensing module

104‧‧‧Four attitude sensing module

105‧‧‧ fifth attitude sensing module

106‧‧‧ sixth attitude sensing module

107‧‧‧ seventh attitude sensing module

108‧‧‧eightth attitude sensing module

109‧‧‧Ninth Attitude Sensing Module

Figure 1A is a schematic diagram of a smart phone provided according to the conventional technology.

Figure 1B is a schematic view of a pico projector provided in accordance with conventional techniques.

Figure 2, which uses the Doppler phenomenon of the radar signal to sense the stationary hand. Schematic diagram of the potential.

Fig. 3 is a schematic diagram of sensing the gesture to the left by using the Doppler phenomenon of the radar signal.

Figure 4A is a schematic diagram of the use of a radar signal to sense a gesture moving to the right.

Figure 4B is a schematic diagram of the use of a radar signal to sense a gesture to move quickly to the right.

Figure 5 is a schematic diagram of transmitting an original radar signal using an attitude sensing module and receiving a reflected radar signal.

Figure 6 is a schematic diagram showing the original radar signal, the delayed original radar signal, and the reflected radar signal.

FIG. 7A is a schematic diagram of a gesture sensing method applied to a portable device.

Figure 7B is a schematic diagram further illustrating the implementation of the circuit of Figure 7A.

Figure 8 is a flow diagram of a gesture sensing method applied to a gesture sensing module in accordance with a preferred embodiment of the present invention.

Fig. 9 is a flow chart for further explaining step S77 of Fig. 8.

Figure 10 is a block diagram of a gesture sensing module and a panel in a portable device.

Figure 11 is a schematic diagram of determining the type of gesture operation with a storage module.

Figure 12A, which is arranged in an array in a top view Sensing the module and sensing the user's schematic diagram of waving the gesture from left to right.

In Fig. 12B, the attitude sensing module is arranged in an array in a top view direction, and the user is sensed to swing the gesture from right to left.

In Fig. 12C, the attitude sensing module is arranged in an array in a top view direction, and the user is sensed to swing the gesture from bottom to top.

In the 12th figure, the attitude sensing module is arranged in an array in a top view direction, and the user is sensed to swing the gesture from top to bottom.

Figure 13 is a schematic diagram showing the arrangement of the attitude sensing module in an array in a side view direction and sensing the user's gesture of waving the gesture from far to near.

Figure 14 is a schematic diagram of embedding a gesture sensing module in a smart phone in accordance with an embodiment of the present invention.

Claims (14)

An electronic device includes: an attitude sensing module, comprising: a signal generating unit that periodically generates an original radar signal in a pulse wave format; a radar antenna electrically connected to the signal generating unit, which transmits the An original radar signal, and receiving a corresponding reflected radar signal when the original radar signal contacts an object to be measured; and a determining unit electrically connected to the signal generator and the radar antenna, according to the original An operation command corresponding to the radar signal and the reflected radar signal corresponding to the change of the position of the object to be tested; and an operation module electrically connected to the attitude sensing module, wherein the phase is performed according to the operation instruction Corresponding to an operational behavior. The electronic device of claim 1, wherein the determining unit comprises: a delay device electrically connected to the signal generating unit, wherein the original radar signal is delayed for a period of time to obtain the delayed original radar a receiver electrically coupled to the radar antenna for storing the reflected radar signal; a mixer electrically coupled to the receiving unit and the delayer, wherein the delayed original radar signal is coupled to the signal After the vibration amount of the reflected radar signal is mixed, a total radar signal is obtained; and a signal processor is electrically connected to the mixer, and the position of the object to be tested is determined according to the summed radar signal. And in a database Find the operation type corresponding to the change in the position of the object to be tested. The electronic device of claim 1, further comprising: a storage module electrically connected to the signal processor, wherein the database provides a database, wherein the database stores a plurality of vibration quantity changes, plural The corresponding relationship between the position change of the object to be tested and a plurality of operation instructions. The electronic device of claim 3, wherein the determiner uses the correspondence stored by the storage module to determine the object to be tested by using a lookup table, an index correspondence, and a hashing manner. The mode of operation corresponding to the change in position. The electronic device of claim 1, wherein the frequency and the amount of vibration of the reflected radar signal are varied due to movement of the object to be tested. The electronic device of claim 1, wherein the pulse wave format is generated according to an ultra wideband (UWB) technology. The electronic device of claim 1, wherein the electronic device is a portable device, a display, an elevator device, and a pair of speaking devices. An attitude sensing method is applied to an electronic device, comprising the steps of: periodically generating an original radar signal in a pulse wave format; transmitting the original radar signal, wherein the original radar signal is in contact with an object to be tested, corresponding to Generating a reflected radar signal; receiving the reflected radar signal; Determining, according to the original radar signal and the reflected radar signal, an operational type corresponding to a change in position of the object to be tested; and performing an corresponding operational behavior according to the operational type. The attitude sensing method according to claim 8, wherein the step of determining the operation type corresponding to the position change of the object to be tested according to the original radar signal and the reflected radar signal comprises the following steps: Delaying the original radar signal for a period of time to obtain the delayed original radar signal; mixing the delayed original radar signal with the vibration amount of the reflected radar signal to obtain a summed radar signal; And summing the radar signals to determine the position change of the object to be tested; and searching the database for the operation type corresponding to the position change of the object to be tested. The attitude sensing method of claim 8, further comprising the steps of: providing a pre-stored plurality of vibration quantity changes and corresponding plurality of posture operation types. The attitude sensing method according to claim 10, wherein the step of searching for the operation type corresponding to the position change of the object to be tested in the database means: through a lookup table, an index corresponding And a hashing manner, determining the operation type corresponding to the change in the position of the object to be tested. An attitude sensing method as described in claim 8 of the patent application, The step of performing the corresponding operation behavior according to the operation type means: controlling a portable device to perform an adjustment operation according to the operation mode; or controlling a display to perform an adjustment operation according to the operation mode; Controlling an elevator device to perform lifting operation due to the type of operation; or controlling a pair of speaking devices to perform a call operation due to the type of operation. The attitude sensing method according to claim 8, wherein the frequency and the vibration amount of the reflected radar signal are changed due to the relative movement of the object to be tested and the electronic device. The attitude sensing method according to claim 8, wherein the pulse wave format is generated according to an ultra wideband (UWB) technology.