TWI692417B - Smart box - Google Patents

Abstract

The present invention provides a smart box. The smart box is configured to operably be inserted into a veachle device and is configured to operably carry a portable device. The smart box includes: a proximity sensor, a wireless charger and a controller. The proximity sensor is configured to operably perform a proximity sensing procedure to determine a proximity distance between an object and the smart box, to generate a proximity sensing signal. The wireless charger is configured to operably perform a wireless charging procedure. The controller is configured to operably determine that the portable device is desired to be inserted into or removed from the smart box, such that the smart box clamps or release the portable device. The controller performs a noise interference mitigating procedure, to prevent the proximity sensing procedure from being interfered by the noise generated by the wireless charging procedure.

Description

Multifunctional smart rack

The invention relates to a multifunctional smart rack, in particular to a wireless charging circuit and a near-field induction circuit that can be integrated into the same multifunctional smart rack, and can prevent noise generated when the wireless charging circuit performs a wireless charging process Interference caused by the near-field sensor circuit to perform a near-field sensor program misjudgment occurs, and can allow the near-field sensor circuit to self-learning, without affecting the judgment of the multi-function smart rack due to changes in the environment .

Please refer to FIG. 1, which shows a block diagram of the multi-function smart rack 10 of the prior art. The multi-functional smart rack 10 of the prior art can be built into a vehicle device 19, and the multi-functional smart rack 10 of the prior art can be used to hold a portable device 18. As shown in FIG. 1, the multi-functional smart rack 10 of the prior art includes a control circuit 11 and a wireless charging circuit 12. The wireless charging circuit 12 is used to perform a wireless charging procedure in the multi-function smart rack 10 of the prior art. When the multifunctional smart rack 10 of the prior art holds the portable device 18, the wireless charging circuit 12 can perform wireless charging on the portable device 18. The disadvantage of the prior art multifunctional smart rack 10 is that it can only include a wireless charging circuit 12 alone, and cannot integrate a near field sensing circuit into the prior art multifunctional smart rack 10. The reason is that if the wireless charging circuit 12 and a near-field sensing circuit are integrated into the same prior art multifunctional smart rack 10 in the prior art multifunctional smart rack 10, the wireless charging circuit 12 performs The generated noise will interfere with the near-field sensing circuit. And such interference will cause the situation that the near-field sensing circuit executes the near-field sensing program and misjudges the situation. Therefore, the prior art multi-function smart rack 10 cannot solve the problem of the wireless charging circuit 12 interfering with the near-field sensing circuit. The Huijia 10 cannot and cannot integrate the wireless charging circuit 12 with a near-field sensing circuit. As a result, the functions of the multifunctional smart rack 10 of the prior art become very narrow and very limited.

In view of this, the present invention proposes a functional smart rack that can integrate the wireless charging circuit and the near-field sensing circuit in the same multi-functional smart rack, and can prevent noise interference generated by the wireless charging circuit when performing the wireless charging process. A functional smart shelf that causes a misjudgment of the near-field sensing circuit to execute the near-field sensing program, and allows the near-field sensing circuit to self-learn without affecting the judgment of the multi-functional smart shelf due to changes in the environment.

In one aspect, the present invention provides a multifunctional smart rack for mounting in a vehicle device, and the multifunctional smart rack is used to hold a portable device. The multifunctional smart rack includes: a The near-field sensing circuit is used to execute a near-field sensing procedure to sense a near-field distance between a test object and the multi-functional smart rack to generate a near-field sensing signal; a wireless charging circuit is used to The portable device executes a wireless charging procedure; and a control circuit respectively coupled to the near-field sensing circuit and the wireless charging circuit, the control circuit is used to determine the portable device's desire based on the near-field sensing signal Is placed in the multifunctional smart rack, or is to be taken out of the multifunctional smart rack, so that the multifunctional smart rack clamps or releases the portable device; wherein, the control circuit performs a noise mitigation A procedure to reduce noise in the near-field induction signal, wherein at least part of the noise is generated when the wireless charging circuit executes the wireless charging process.

In a preferred embodiment, the near-field sensing circuit includes a placement sensor, and the object to be measured includes the portable device, and the near-field sensing procedure includes a placement sensing procedure to sense the A device distance between the portable device and the multifunctional smart rack, and generates a device sensing signal in the near-field sensing signal, so that the control circuit determines that the portable device is to be placed in the multifunctional smart rack , So that the multifunctional smart rack clamps the portable device.

In a preferred embodiment, the near-field sensing circuit further includes a take-out sensor, and the object to be measured further includes a human body part, and the near-field sensing program further includes a take-out sensing program to sense the human body A human body distance between the part and the multifunctional smart rack, and generates a human body sensing signal in the near-field sensing signal, so that the control circuit determines that the portable device is to be taken out from the multifunctional smart rack, so that The functional smart rack releases the portable device.

In a preferred embodiment, the control circuit includes: an analog-to-digital converter (ADC) for converting the near-field induction signal into a digital near-field induction signal; a A median filter is coupled to the analog-to-digital converter to perform a median filtering operation on the digital near-field sensing signal to filter out a spurious noise in the digital near-field sensing signal To generate a digital near-field sensing signal after median filtering; and a slew rate limiter (slew rate limiter), coupled to the median filter, for filtering the digital near-field sensing signal after median filtering Perform a slope limit operation to filter out a drastic noise in the median filtered digital near field induction signal, and generate a digital near field induction signal after the slope limitation operation; wherein the control circuit is based on the slope The digital near-field induction signal after the limitation operation generates an operation signal, and the noise mitigation procedure includes the median filtering operation and the slope limitation operation.

In the foregoing embodiment, the control circuit preferably further includes a low-pass filter for performing a low-pass filter operation on the operation signal to generate a low-pass filter signal; wherein The control circuit generates a judgment signal according to whether a difference between the calculation signal and the low-pass filtered signal is greater than a preset threshold to determine whether the portable device is to be placed in the multifunctional smart rack, Or you want to take it out of the multifunctional smart rack; where the noise mitigation process further includes the low-pass filtering operation.

In the foregoing embodiment, the low-pass filter operation preferably includes a moving average operation, wherein the low-pass filter performs the moving average operation on the operation signal to achieve a low operation signal Pass filtering to generate the low-pass filtered signal.

In the foregoing embodiment, the low-pass filter operation preferably includes a self-learning process, wherein the low-pass filter performs the self-learning process on the operation signal to achieve low-pass filtering on the operation signal, and Generating the low-pass filtered signal; wherein the self-learning process includes: (A) calculating an initial average value of the arithmetic signal; (B) comparing the arithmetic signal with the initial average value; (C) when the arithmetic signal is not less than the When the initial average value is increased, the initial average value is increased to generate the low-pass filtered signal; (D) when the calculation signal is less than the initial average value, the initial average value is decreased to generate the low-pass filtered signal; (E) the comparison Operation signal and the low-pass filter signal; (F) when the operation signal is not less than the low-pass filter signal, add the low-pass filter signal to generate a new low-pass filter signal; (G) when the operation signal is less than the When the low-pass filtered signal, reduce the low-pass filtered signal to generate a new low-pass filtered signal; (H) and repeat step (E).

In the foregoing embodiment, the control circuit preferably further includes a debounce circuit for performing a debounce operation on the difference, the judgment signal, or the operation signal to prevent the near One of the field-sensing signals triggers noise; the noise mitigation process further includes the de-bounce operation.

In the foregoing embodiment, the debounce circuit preferably includes a hysteresis circuit, and the debounce operation includes a hysteresis operation to prevent the multiple signals from triggering noise.

In a preferred embodiment, the control circuit includes a microcontroller (micro-control unit, MCU), which is used as the analog-to-digital converter, median filter, slope limiter, low-pass filter and At least one of the debounce circuits.

In a preferred embodiment, the multifunctional smart rack further includes: a driving motor for extending or contracting the two clamping arms of the multifunctional smart rack, wherein: when removing impurities When the near-field induction signal determines that the multifunctional smart rack needs to clamp the portable device, the control circuit notifies the driving motor to retract the two clamping arms of the multifunctional smart rack, so that the multifunctional smart rack Clamping the portable device; and judging the multi-function smart stand when noise is near the field sensing signal When it is necessary to release the portable device, the control circuit notifies the drive motor to extend the two clamping arms of the multifunctional smart rack, so that the multifunctional smart rack releases the portable device.

In a preferred embodiment, the multifunctional smart rack further includes: a vibration sensor for detecting whether a vehicle body inserted into the multifunctional smart rack has a vibration condition, wherein, when the vibration sensor detects When the vehicle body has a vibration condition, the vibration sensor notifies the control circuit so as to turn on a lighting device of the vehicle body, so as to light the interior of the vehicle body, display the brand inside the vehicle body, or generate a warning function.

In a preferred embodiment, the multifunctional smart rack further includes: a gravity sensor (G-sensor) for detecting whether a vehicle body inserted into the multifunctional smart rack has a movement status, wherein The gravity sensor detects that the vehicle body is moving, and the gravity sensor notifies the control circuit to open an in-vehicle anti-theft alarm system of the vehicle body, so that the portable device and the multifunctional smart frame The Bluetooth connection method carries out an identity authentication procedure in order to carry out an anti-theft alarm.

In a preferred embodiment, the multi-functional smart rack further includes: a Bluetooth device for performing Bluetooth connection with the portable device, so that when the portable device releases its own When music or video, the Bluetooth device notifies the control circuit so that the control circuit notifies a sound playback device in the car to output the music or video of the portable device; or when an identity authentication process is required, the Bluetooth The device notifies the control circuit to enable the control circuit to turn on an in-vehicle anti-theft alarm system of the vehicle body, so that the portable device and the multi-function smart rack can perform the identity authentication procedure via Bluetooth connection for anti-theft alarm.

The detailed description will be given below through specific embodiments, so that it is easier to understand the purpose, technical content, characteristics and achieved effects of the present invention.

10: Prior art multi-function smart rack

20: Multifunctional smart rack

201: Clamp arm

202: Clamp arm

11: Prior art control circuit

12: Prior art wireless charging circuit

18: portable device

19: Vehicle device

191: Center console

193: Rearview mirror

195: steering wheel

197: Windshield

21: Control circuit

211: Analog to digital converter

212: Median filter

213: Slope limiter

217: Low-pass filter

219: Debounce circuit

22: Wireless charging circuit

23: Near-field induction circuit

231: Insert sensor

232: Remove the sensor

25: Car electronic device

251: Lighting device

252: Sound playback device

31: Vibration sensor

32: Gravity sensor

33: Bluetooth device

34: drive motor

90: Bodywork

Avg: preset average

F1: Environmental value of near-field induction signal

F2: Initial value of near-field induction signal

F3: De-noise near-field induction signal

S10: Smart shelf control method

S11~S15: Step

S151~S156: Steps

S1551~1558: steps

S1561~S1565: steps

S20~S24: Step

S211~S212: Steps

S221~S222: Steps

S231~S232: Step

S241~S242: Steps

S30, S40: steps

S301~S303: Steps

S401~S407: Steps

S50, S60: steps

S51~S53: Steps

S61: Step

Thr: preset threshold

FIG. 1 shows a block diagram of a multi-functional smart rack of the prior art.

FIG. 2 shows a schematic diagram of an embodiment of the multifunctional smart rack 20 of the present invention.

FIG. 3 shows a block diagram of an embodiment of the multifunctional smart rack of the present invention.

FIG. 4A shows an embodiment in which the multifunctional smart rack of the present invention can be built into a vehicle device, wherein the multifunctional smart rack is used to hold a portable device.

FIG. 4B shows an embodiment of the multifunctional smart stand of the present invention for holding a portable device.

FIG. 5 shows a schematic diagram of an embodiment of the near-field sensing circuit 23 in the multifunctional smart rack 20 of the present invention.

FIG. 6 shows another embodiment of the multifunctional smart rack of the present invention can be built into a vehicle device, wherein the multifunctional smart rack is used to hold a portable device.

FIG. 7 shows a block diagram of an embodiment of a control circuit 21 for performing a noise mitigation procedure with the multifunctional smart rack of the present invention.

FIG. 8 is a schematic diagram showing that the control circuit 21 of the multifunctional smart rack 20 includes a low-pass filter 217.

9 and 10 show that the multifunctional smart rack 20 of the present invention may further include a debounce circuit.

FIG. 11 shows a block schematic diagram of another embodiment of the multifunctional smart rack 40 of the present invention.

FIG. 12 shows a step flowchart of an embodiment of the control method S10 of the multifunctional smart rack of the present invention.

FIG. 13 shows a flowchart of steps of an embodiment of the noise mitigation procedure of the control method of the multifunctional smart rack 20 of the present invention.

Fig. 14 shows an embodiment of the self-learning program of the present invention.

The flow chart of debounce calculation steps in the noise mitigation procedure in the multi-function smart rack control method shown in FIG. 15.

FIG. 16 shows a flowchart of steps of other various embodiments of the control method of the multifunctional smart rack 40 of the present invention.

FIG. 17 shows a step flowchart of a specific embodiment of the control method of the multifunctional smart rack of the present invention.

FIG. 18 shows a flowchart of steps of another specific embodiment of the control method of the multifunctional smart rack of the present invention.

FIG. 19 shows a step flowchart of still another specific embodiment of the control method of the multifunctional smart rack of the present invention.

FIG. 20 shows a step flowchart of a more specific embodiment of the control method of the multifunctional smart rack of the present invention.

FIG. 21A shows a signal waveform diagram of the present invention that has not yet executed the Slew Rate Limiting procedure.

FIG. 21B shows a signal waveform diagram of the present invention after executing the Slew Rate Limiting procedure.

FIG. 21C shows a comparison diagram between FIG. 21A and FIG. 21B.

FIG. 22A shows a signal waveform diagram of the present invention that has not yet performed a debounce procedure.

FIG. 22B shows a signal waveform diagram of the present invention after performing a debounce procedure.

The foregoing and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description with reference to one of the preferred embodiments of the drawings. The drawings in the present invention are schematics, and are mainly intended to show the functional relationship between each device and each element. The shape, thickness and width are not drawn to scale.

FIG. 2 shows a schematic diagram of an embodiment of the multifunctional smart rack 20 of the present invention. As shown in the figure, the multifunctional smart rack 20 according to the present invention is used for a vehicle device installed in a vehicle body 90. Vehicle devices such as but not limited to the console 191, rear mirror 193, steering wheel 195, windshield 197, etc. as shown; of course, the multi-function smart rack 20 can also be installed in other vehicles in the car body 90 As long as the device can operate the multifunctional smart rack 20, the functional smart rack 20 can be kept in the car body 90.

Please refer to Figure 3 and compare with Figure 12. FIG. 3 shows a block diagram of an embodiment of the multifunctional smart rack 20 of the present invention. FIG. 12 shows a step flowchart of an embodiment of the control method S10 of the multifunctional smart rack of the present invention. As shown in FIG. 3, the multifunctional smart rack 20 of this embodiment can be placed in a car device 19, and the multifunctional smart rack 20 of this embodiment can be used to hold a portable device 18 (see section Step S11 shown in FIG. 12).

The multifunctional smart rack 20 of this embodiment includes: a near-field sensing circuit 23, a wireless charging circuit 22, and a control circuit 21. The near-field sensing circuit 23 is used to execute a near-field sensing procedure (see step S12 shown in FIG. 12) to sense a near-field distance between an object to be measured and the multi-function smart rack 20 to generate a near-field Induction signal. The wireless charging circuit 22 is used to execute a wireless charging procedure (see step S13 shown in FIG. 12).

The control circuit 21 is used to determine whether the portable device 18 is to be placed in the multi-function smart rack 20 or to be taken out from the multi-function smart rack 20 according to the near-field induction signal, so that the multi-function smart rack 20 is clamped or loosened Turn on the portable device 18 (see step S14 shown in FIG. 12). The control circuit 21 executes a noise mitigation procedure to reduce noise in the near-field induction signal. At least part of the noise is generated when the wireless charging circuit 22 performs the wireless charging procedure.

In this embodiment, the portable device 18 may be, for example but not limited to, a smart phone, a mobile network device (MID), a smart tablet computer, a deformable tablet computer, a notebook computer, a mobile phone, Watch, laptop, tablet, UltrabookTM computer, PDA device, handheld PDA device or any other type of portable device.

Please refer to Figure 4A and Figure 4B. FIG. 4A shows an embodiment in which the multifunctional smart rack 20 of the present invention can be built into a vehicle device, wherein the multifunctional smart rack 20 is used to hold a portable device 18. FIG. 4B shows an embodiment of the multifunctional smart stand 20 of the present invention for holding a portable device 18.

As shown in FIG. 4A, in this embodiment, the vehicle device 19 may be, for example but not limited to, a center console 191 in a vehicle body 90, which is located on the right side (or left side) of the steering wheel 195 in the vehicle body 90. In such an embodiment, as shown in FIG. 4A, the multi-function smart rack 20 of this embodiment is built into the center console 191 in the car body 90, and the multi-function smart rack 20 is in the car body 90. The center console 191 is used to hold the portable device 18.

As shown in FIG. 4B, in this embodiment, the multifunctional smart rack 20 may include two clamping arms, that is, clamping arms 201 and clamping arms 202. With the clamping arm 201 and the clamping arm 202, the multifunctional smart rack 20 can be used to hold the portable device 18 (about how the multifunctional intelligent rack 20 is held or released by the clamping arm 201 and the clamping arm 202) The features and details of the portable device 18 will be described later).

Of course, in the present invention, the vehicle device 19 is not limited to the center console 191 in the vehicle body 90, but may be other parts in other vehicle bodies 90.

Please refer to FIG. 5, which shows a schematic diagram of an embodiment of the near-field sensing circuit 23 in the multifunctional smart rack 20 of the present invention. As shown in the figure, the near-field sensing circuit 23 includes a placement sensor 231 and a removal sensor 232. The object to be measured includes the portable device 18, and the near-field sensing procedure includes a placement sensing procedure to sense the device distance between the portable device 18 and the multi-function smart rack 20 to generate the device sensing signal in the near-field sensing signal , So that the control circuit 21 determines that the portable device 18 is to be placed in the multifunctional smart rack 20, so that the multifunctional smart rack 20 sandwiches the portable device.

Please continue to refer to FIG. 5, in the multifunctional smart rack 20 of the present invention, the near-field sensing circuit 23 further includes a removal sensor 232, and the object to be tested further includes a human body part, such as but not limited to finger. The near-field sensing procedure further includes taking out the sensing procedure to sense the human body distance between the human body part and the multi-function smart frame, and generating the human-sensing signal in the near-field sensing signal, so that the control circuit 21 judges that the portable device 18 wants more The functional smart rack 20 is taken out, so that the multifunctional smart rack 20 releases the portable device 18.

Please refer to FIG. 6, which shows another embodiment of the multifunctional smart rack of the present invention can be built into a vehicle device, wherein the multifunctional smart rack is used to hold a portable device.

As shown in FIG. 6, in this embodiment, the vehicle device 19 may be, for example but not limited to, a rearview mirror 193 in a vehicle body 90. In such an embodiment, as shown in FIG. 5, the multi-function smart rack 20 of this embodiment is placed in the rear mirror 193 in the car body 90, and the multi-function smart rack 20 is in the car body 90. The rear-view mirror is used to hold the portable device 18.

Of course, in the present invention, the vehicle device 19 is not limited to the center console 191 or the rearview mirror 193 in the vehicle body 90. In other embodiments, the vehicle device 19 may be any other part in the vehicle body 90. .

Compared with the prior art, the present invention has advantages and features in that the control circuit 21 of the multi-function smart rack 20 of the embodiment shown in FIG. 3 can perform noise mitigation procedures, thereby reducing the execution of the wireless charging circuit 22 The noise generated during the wireless charging procedure interferes with the near-field sensing procedure performed by the near-field sensing circuit 23, so as to prevent the near-field sensing procedure from generating a misjudgment.

The following is described with reference to FIG. 7, when the present invention executes the noise mitigation procedure (see step S15 shown in FIG. 13), the control circuit 21 of the multifunctional smart rack 20 of the embodiment shown in FIG. 3 can be used To execute.

Please refer to Figure 7. FIG. 7 shows a block diagram of an embodiment of a control circuit 21 for performing a noise mitigation procedure with the multifunctional smart rack of the present invention.

In one embodiment, please refer to FIG. 7 and FIG. 13. FIG. 13 shows a flowchart of steps of an embodiment of the noise mitigation procedure of the control method of the multifunctional smart rack 20 of the present invention.

In order to execute the noise mitigation procedure by the control circuit 21 of the multifunctional smart rack 20 of the embodiment shown in FIG. 7 (see step S15 shown in FIG. 13), as shown in FIG. 7, the multifunctional smart rack 20 The control circuit 21 may include an analog-to-digital converter (ADC) 211, a median filter 212, and a slew rate limiter 213.

As shown in FIG. 7, in this embodiment, the analog-to-digital converter 211 is used to read the near-field sensing signal to convert the near-field sensing signal into a digital near-field sensing signal (see steps shown in FIG. 13 S151). The median filter 212 is coupled to the analog-to-digital converter 211 to perform a median filtering operation on the digital near-field sensing signal to filter out the spurious noise in the digital near-field sensing signal and generate a median filter Digital near-field sensing signal (see step S152 shown in FIG. 13). The slope limiter 213 is coupled to the median filter 212 to perform a slope limit operation on the median filtered digital near-field sensing signal to filter out the sharp noises in the median filtered digital near-field sensing signal Signal, and generates a digital near-field sensing signal after the slope limiting operation (see step S153 shown in FIG. 13). The control circuit 21 generates an operation signal according to the digital near-field induction signal after the slope limitation operation, and the noise mitigation procedures include median filtering operation and slope limitation operation. Among them, the so-called median filtering operation refers to taking the median of the digital near-field induction signal in each preset period; and the slope limiting operation refers to comparing the digital near-field induction signal after median filtering to time In the signal waveform of, filtering out the part whose slope exceeds a preset slope, the median filtering operation and the slope limiting operation are well known to those of ordinary skill in the art, and will not be repeated here. It should be noted that after the digital near-field induction signal undergoes a median filtering operation, the surge noise in the digital near-field induction signal is filtered out, and the resulting signal is the digital near-field induction signal after the median filtering. Similarly, after the median filtered digital near-field induction signal undergoes a slope limiting operation, the drastic noise in the median filtered digital near-field induction signal is filtered out, and the resulting signal is a slope-limited operation The following digital near-field induction signal. The main contents of digital near-field sensing signals, such as, but not limited to, the distance between the human body part and the multi-function smart frame; median filtering operation and slope limiting operation, designed to filter out digital near-field sensing signals and after median filtering The "noise" in the digital near-field induction signal enables the control circuit 21 to determine the human body distance between the multi-functional smart racks more accurately, without misjudgment.

In another embodiment, please refer to Figure 8 and compare with Figure 13. In order to execute the noise mitigation procedure by the multi-function smart rack 20 of the embodiment shown in FIG. 8 (see step S15 shown in FIG. 13), As shown in FIG. 8, the control circuit 21 of the multifunctional smart rack 20 may further include a low-pass filter 217 for performing a low-pass filter operation on the operation signal to generate a low-pass filter Signal; wherein the control circuit 21 determines whether the portable device 18 is to be placed in the multi-function smart rack 20, or to be determined by whether a difference between the operation signal and the low-pass filtered signal is greater than a predetermined threshold Thr The multi-function smart rack 20 is taken out; the noise mitigation procedure further includes low-pass filtering operation.

This means that an environmental reference value (ie, low-pass filtered signal) is obtained by taking the low-pass filtering of the operation signal. There are many ways of low-pass filtering operation, mainly in the calculation of the operation related to the near-field induced signal The signal is based on the change of the environment, that is, the environmental reference value, such as the change of the level of the calculation signal caused by the wireless charging process; or various other ambient noises induced by the approach, such as temperature, humidity, electromagnetic waves, etc. Noise interference. The low-pass filtered signal of the operation signal can be used as the background value when performing the approach induction process. As shown in Figure 8, the low-pass filtered signal of the operation signal is first obtained by low-pass filtering, and then the operation signal is compared with the low-pass filtered signal input comparator 2171, and then the output signal of the comparator 2171, that is, The difference between the operation signal and the low-pass filtered signal is input to the comparator 2172, and the comparator 2172 compares the difference with the preset threshold Thr. For example, when the difference is greater than the preset threshold Thr, it is determined that the signal represents that the portable device 18 is to be placed in the multifunctional smart rack 20.

There are many implementations of low-pass filtering operations. For example, in one of the embodiments, the low-pass filtering operation may include a moving average operation. The low-pass filter 217 performs a moving average operation on the operation signal to achieve low-pass filtering on the operation signal, thereby generating a low-pass filter signal. The calculation formula of the moving average calculation method is, for example but not limited to, the following relationship can be used to express Ft=(At-1+At-2+At-3+…+At-n)/n

Among them, Ft represents the time t, the moving average of the calculation signal; n represents the number of periods of the moving average; At-1 represents the actual value of the calculation signal of the previous period; At-2, At-3 and At-n represent the previous The actual value of the calculation signal in the two periods, the first three periods, and the previous n periods.

In another embodiment, the low-pass filter operation includes a self-learning process, in which the low-pass filter 217 performs a self-learning process on the operation signal to achieve low-pass filtering on the operation signal, And generate a low-pass filtered signal. Please refer to Figure 14 for an example of the implementation of the self-learning program. The self-learning program includes, for example: (A) calculating the initial average value of one of the operation signals (see step S1551 shown in FIG. 14); (B) comparing the operation signal and the initial average value (see step S1552 shown in FIG. 14) ; (C) When the calculation signal is not less than the initial average value, increase the initial average value to generate a low-pass filtered signal (see step S1553 shown in FIG. 14); (D) decrease when the calculation signal is less than the initial average value Initial average value to generate a low-pass filtered signal (see step S1554 shown in FIG. 14); (E) Compare operation signal with low-pass filtered signal (see step S1555 shown in FIG. 14); (F) Check the comparison result (See step S1556 shown in FIG. 14); (G) When the calculation signal is not less than the low-pass filtered signal, add a low-pass filtered signal to generate a new low-pass filtered signal (see step S1557 shown in FIG. 14) (H) When the operation signal is less than the low-pass filtered signal, reduce the low-pass filtered signal to generate a new low-pass filtered signal (see step S1558 shown in FIG. 14); and (I) repeat step (E).

Please refer to figures 9 and 10 and compare with figure 15. FIGS. 9 and 10 show that the multifunctional smart rack 20 of the present invention may further include a debounce circuit 219 to perform the debounce calculation in the noise mitigation process in the multifunctional smart rack control method shown in FIG. 15 Step flow chart.

In this embodiment, the control circuit 21 of the multifunctional smart rack 20 further includes a debounce circuit 219 for performing debounce operation on the judgment signal and the operation signal to prevent multiple of the near-field sensing signals The signal triggers noise; the noise mitigation procedure includes debounce operations. Of course, the debounce circuit 219 may also perform a debounce operation on the difference output by the comparator 2171 to prevent multiple signals in the near-field sensing signal from triggering noise.

Please refer to Figure 15, first compare the difference between the calculated signal and the low-pass filtered signal, is it greater than the preset threshold? (See step S1561 shown in Fig. 15). For computing signals and low-pass filtered signals If the difference between them is greater than the preset threshold, perform a de-bounce procedure on the difference, judgment signal, or operation signal to prevent multiple signal triggers (see step S1562 shown in Figure 15); Type device (see step S1564 shown in FIG. 15). When the difference between the operation signal and the low-pass filtered signal is not greater than the preset threshold, perform a de-bounce procedure on the difference, judgment signal or operation signal to prevent multiple signal triggering (see step S1563 shown in Figure 15); then Promote the multifunctional smart stand to hold or release the portable device (see step S1565 shown in FIG. 15). The detailed features of the debounce procedure (see steps S1564 and S1565 shown in FIG. 15) are well known to those skilled in the art, and the details will not be repeated here.

Please also refer to Figure 21A ~ Figure 21C. FIG. 21A shows a signal waveform diagram of the present invention that has not yet executed the Slew Rate Limiting procedure. FIG. 21B shows a signal waveform diagram of the present invention after executing the Slew Rate Limiting procedure. FIG. 21C shows a comparison diagram between FIG. 21A and FIG. 21B.

As shown in FIG. 21A, if the digital near-field sensing signal has not yet executed the Slew Rate Limiting procedure, the signal waveform of the digital near-field sensing signal has a lot of noise.

However, as shown in FIG. 21B, if the digital near-field sensing signal undergoes the Slew Rate Limiting procedure, according to the signal waveform diagram of the digital near-field sensing signal, it can be seen that the noise has been significantly removed. Referring to FIG. 21C, it can be further seen that after the digital near-field sensing signal has undergone the Slew Rate Limiting procedure, its noise has been significantly removed.

Please refer to Figure 22A and Figure 22B at the same time. FIG. 22A shows a signal waveform diagram of the present invention that has not yet performed a debounce procedure. FIG. 22B shows a signal waveform diagram of the present invention after performing a debounce procedure.

As shown in FIG. 22A, if the debounce procedure is not performed, the signal waveform of the judgment signal will be as shown in FIG. 22A, which has the defect of multiple signal triggering.

However, as shown in FIG. 22B, if the Debounce procedure is executed (that is, after performing steps S1564 and S1565 shown in FIG. 15), the signal waveform of the judgment signal will be as shown in FIG. 22B, This judgment signal no longer has any defects triggered by multiple signals.

In an embodiment, in the multifunctional smart rack 20 of the embodiment shown in FIG. 3, the near-field sensing circuit 23 included therein can be used to determine the signal to cause the multifunctional smart rack 20 to be clamped or released.含式装置18。 Portable device 18.

Please refer to Figure 11 and compare with Figure 16. FIG. 11 shows a block schematic diagram of another embodiment of the multifunctional smart rack 40 of the present invention. FIG. 16 shows a flowchart of steps of other various embodiments of the control method of the multifunctional smart rack 40 of the present invention.

As described above, the present invention can be executed by the control circuit 21 of the multi-function smart rack 20 of the embodiment shown in FIG. 3 when executing the noise mitigation procedure (see step S15 shown in FIG. 13).

Under the premise of performing noise mitigation procedures, the multi-function smart rack 40 of this embodiment includes: a near-field sensing circuit 23 (see steps S21, S22, S23, S24 shown in FIG. 16), a wireless In addition to the charging circuit 22 (see step S60 shown in FIG. 16) and a control circuit 21 (see step S15 shown in FIG. 16), the multi-function smart rack 40 of this embodiment may further include: a driving motor 34 (See steps S21, S22, S23, S24 shown in Figure 16), a shock sensor 31 (see step S30 shown in Figure 16), a gravity sensor (G-sensor) 32 (see Figure 16 Step S40 shown) and/or a Bluetooth device 33 (see step S50 shown in FIG. 16).

Please refer to Figure 17 and Figure 18 and compare with Figure 11. FIG. 17 shows a step flowchart of a specific embodiment of the control method of the multifunctional smart rack of the present invention. FIG. 18 shows a flowchart of steps of another specific embodiment of the control method of the multifunctional smart rack of the present invention.

In one embodiment, the near-field sensing circuit 23 included in the multi-function smart rack 40 of this embodiment is provided on the premise of performing the noise mitigation procedure (see step S10 shown in FIGS. 17 and 18) It can be used to judge the judgment signal to cause the multifunctional smart rack 40 to clamp or release the portable device 18 (see steps S21 and S23 shown in FIG. 16).

The driving motor 34 included in the multi-function smart rack 40 can be used to extend or contract the multi-function smart rack 40 with the two clamping arms 201 and 202 (see FIG. 4B ).

When the portable device 18 approaches the multifunctional smart rack 40 (see step S211 shown in FIG. 17), so that the determination signal determines that the multifunctional smart rack 40 needs to clamp the portable device 18, the control circuit 21 notifies the driving motor 34 Retract the two clamping arms 201 and 202 (see FIG. 4B) of the multifunctional smart rack 40, so that the multifunctional smart rack 40 clamps the portable device 18 (see step S212 shown in FIG. 16).

When the finger approaches the multi-function smart stand 40 (see step S231 shown in FIG. 17), so that the judgment signal determines that the multi-function smart stand 40 needs to release the portable device 18, the control circuit 21 notifies the drive motor 34 to extend the multi-function The two clamping arms provided by the smart rack enable the multifunctional smart rack 40 to release the portable device 18.

In one embodiment, the wireless charging circuit 22 included in the multi-function smart rack 40 of this embodiment can be used under the premise of performing noise mitigation procedures (see step S10 shown in FIGS. 17 and 18) In order to wirelessly charge the portable device 18 by executing a wireless charging procedure. When it is determined that the portable device 18 is to be wirelessly charged by the multifunctional smart rack 40 (see step S60 shown in FIGS. 17 and 18), the wireless charging circuit 22 included in the multifunctional smart rack 40 can be used to borrow The wireless charging procedure is performed to wirelessly charge the portable device 18 (see step S61 shown in FIGS. 17 and 18).

In one embodiment, the Bluetooth device 33 included in the multi-function smart rack 40 of this embodiment can be used under the premise of performing the noise mitigation procedure (see step S10 shown in FIGS. 17 and 18) In order to perform Bluetooth connection with the portable device 18.

When it is determined that the portable device 18 is to perform Bluetooth connection with the multi-function smart rack 40 (see step S50 shown in FIGS. 17 and 18), the portable device 18 and the multi-function smart rack 40 include The Bluetooth devices 33 perform Bluetooth connection with each other (see step S51 shown in FIGS. 17 and 18).

In this way, when the portable device 18 plays the music or video that it has, the Bluetooth device 33 included in the multi-function smart rack 40 notifies the control circuit 21, so that in an embodiment, the control circuit 21 notifies the interior of the vehicle A sound playback device 252 of 19 outputs music or video of the portable device 18 (see steps S52 shown in FIGS. 17 and 18). Or, in another embodiment, the control circuit 21 notifies the interior 19 of the vehicle and other audio devices or video devices in order to output the music or video of the portable device 18 (see steps S53 shown in FIGS. 17 and 18) ).

Please refer to Figure 11 and compare with Figure 18.

In an embodiment, under the premise of performing a noise mitigation procedure (see step S10 shown in FIG. 18), the multi-function smart rack 40 of this embodiment can directly determine whether the portable device 18 is to be placed directly Enter the multifunctional smart rack 40 (see step S221 shown in FIG. 18). When it is determined that the portable device 18 is to be directly inserted into the multi-function smart rack 40, the portable device 18 is directly placed into the multi-function smart rack 40 (see step S222 shown in FIG. 18 and refer to FIG. 11).

Then, the multifunctional smart rack 40 of this embodiment can also directly determine that the portable device 18 is to be extracted from the multifunctional smart rack 40 (see step S241 shown in FIG. 18). When it is determined that the portable device 18 is to be extracted from the multifunctional smart rack 40, the portable device 18 is directly extracted from the multifunctional smart rack 40 (see step S242 shown in FIG. 18 and refer to FIG. 11).

Please refer to Figure 19 and compare with Figure 11. FIG. 19 shows a step flowchart of still another specific embodiment of the control method of the multifunctional smart rack of the present invention.

In one embodiment, the vibration sensor 31 included in the multi-function smart rack 40 of this embodiment can be used to detect and perform the noise mitigation process (see step S10 shown in FIG. 19). Determine whether a vehicle body 90 inserted into the multi-function smart rack 40 has a vibration condition (see step S301 shown in FIG. 19). When the vibration sensor 31 detects and judges that the vehicle body 90 placed in the multifunctional smart frame 40 has a vibration condition, the vibration sensor 31 notifies the control circuit 21 so as to turn on a lighting device 251 of the vehicle body 90 to light the vehicle body 90 Inside (see step S302 shown in FIG. 19), displaying the brand or inside the car body 90 Generate warning function. After waiting for a period of time, the control circuit 21 may turn off the lighting device 251 of the vehicle body 90 (see step S303 shown in FIG. 19).

Please refer to Figure 20 and compare with Figure 11. FIG. 20 shows a step flowchart of a more specific embodiment of the control method of the multifunctional smart rack of the present invention.

In an embodiment, under the premise of performing a noise mitigation procedure (see step S10 shown in FIG. 20), when an identity authentication procedure is required, the multi-function smart rack 40 of this embodiment first determines its Whether the Bluetooth connection function of the included Bluetooth device 33 is turned on (see step S401 shown in FIG. 20), when the multi-function smart shelf 40 determines that the Bluetooth connection function of the Bluetooth device 33 included in it is activated When turned on, the Bluetooth device 33 notifies the control circuit 21 so that the control circuit 21 turns on an in-vehicle anti-theft alarm system of the vehicle body 90 (see step S402 shown in FIG. 20).

Next, the G-sensor 32 included in the multi-function smart rack 40 of this embodiment can be used to detect whether a vehicle body 90 placed in the multi-function smart rack 40 is moving (see FIG. 20) (Step S403), when the gravity sensor 32 detects that the vehicle body 90 is moving, the gravity sensor 32 notifies the control circuit 21 so as to turn on the in-vehicle anti-theft alarm system of the vehicle body 90, thereby enabling the portable device 18 and the multi-function The smart rack 40 performs an identity authentication process through a Bluetooth connection method to perform an anti-theft alarm (see step S404 shown in FIG. 20).

Next, the multifunctional smart shelf 40 determines whether the identity authentication is correct (see step S405 shown in FIG. 20).

When the multifunctional smart rack 40 judges that the identity authentication is correct, the control circuit 21 turns off the in-vehicle anti-theft alarm system (see step S406 shown in FIG. 20).

When the multifunctional smart rack 40 judges that the identity authentication is not correct, the control circuit 21 in-vehicle anti-theft alarm system emits an alarm sound (see step S407 shown in FIG. 20) to deter the gangster.

The present invention has been described above with reference to preferred embodiments, but the above are only for the purpose of making the person skilled in the art easy to understand the content of the present invention, and are not intended to limit the scope of the present invention. Under the same spirit of the present invention, those skilled in the art can think of various equivalent changes. For example, as shown Between connected circuit components, circuit components that do not affect the main functions of the circuit, such as switches, can be inserted. All of these can be derived by analogy with the teachings of the present invention. In addition, the illustrated embodiments are not limited to individual applications, but can also be used in combination, such as, but not limited to, combining the two embodiments. Therefore, the scope of the present invention should cover all the above and other equivalent changes. In addition, any embodiment of the present invention does not necessarily achieve all the objectives or advantages. Therefore, any of the scope of the claimed patent should not be limited to this.

18: portable device

19: Vehicle device

20: Multifunctional smart rack

21: Control circuit

22: Wireless charging circuit

23: Near-field induction circuit

Claims (13)

A multifunctional smart rack is used to be embedded in a vehicle device, and the multifunctional smart rack is used to hold a portable device. The multifunctional smart rack includes: a near-field sensing circuit for performing a near field A field sensing program to sense a near field distance between a test object and the multifunctional smart rack to generate a near field sensing signal; a wireless charging circuit to perform a wireless charging process on the portable device And a control circuit respectively coupled to the near-field induction circuit and the wireless charging circuit, the control circuit is used to determine that the portable device is to be placed in the multi-function smart rack according to the near-field induction signal, Or want to take it out from the multifunctional smart rack, so that the multifunctional smart rack clamps or releases the portable device; wherein, the control circuit executes a noise mitigation procedure to reduce the near-field induction signal Noise, wherein at least part of the noise is generated by the wireless charging circuit when performing the wireless charging process. The multifunctional smart rack as described in item 1 of the patent application scope, wherein the near-field sensing circuit includes a placement sensor, and the object to be tested includes the portable device, and the near-field sensing procedure includes a placement sensor A procedure to sense a device distance between the portable device and the multifunctional smart rack to generate a device sensing signal of the near-field sensing signal, so that the control circuit determines that the portable device is to be placed The multifunctional smart rack is used to clamp the portable device. The multifunctional smart rack as described in item 2 of the patent application scope, wherein the near-field sensing circuit further includes a take-out sensor, and the object to be measured further includes a human body part, and the near-field sensing program further includes a take-out sensing program To sense a human body distance between the human body part and the multifunctional smart rack to generate a human body sensing signal in the near-field sensing signal, so that the control circuit determines that the portable device wants to be from the multifunctional smart rack Take it out, so that the multifunctional smart rack can loosen the portable device. The multifunctional smart rack as described in item 1 of the patent application scope, wherein the control circuit includes: an analog-to-digital converter (ADC) for converting the near-field induction signal into a digital Near-field induction signal; A median filter is coupled to the analog-to-digital converter to perform a median filter operation on the digital near-field sensing signal to filter out a spurious noise in the digital near-field sensing signal Signal to generate a median filtered digital near-field sensing signal; and a slew rate limiter (slew rate limiter), coupled to the median filter, for filtering the median filtered digital near-field sensing The signal performs a slope limiting operation to filter out a drastic noise in the median filtered digital near-field sensing signal, and generates a digital near-field sensing signal after the slope limiting operation; wherein the control circuit is based on the The digital near-field induction signal after the slope limitation operation generates an operation signal, and the noise mitigation procedure includes the median filtering operation and the slope limitation operation. The multifunctional smart rack as described in item 4 of the patent application scope, wherein the control circuit further includes a low-pass filter (low-pass filter) for performing a low-pass filter operation on the operation signal to generate a low-pass filter Pass filter signal; wherein the control circuit generates a judgment signal according to whether a difference between the operation signal and the low pass filter signal is greater than a preset threshold to determine whether the portable device is to be placed in the The multi-functional smart rack, or to be taken out of the multi-functional smart rack; wherein the noise mitigation procedure further includes the low-pass filtering operation. The multifunctional smart rack as described in item 5 of the patent application scope, wherein the low-pass filter operation includes a moving average operation, wherein the low-pass filter performs the moving average operation on the operation signal to achieve The low-pass filtering of the arithmetic signal generates the low-pass filtering signal. The multifunctional smart rack as described in item 5 of the patent application scope, wherein the low-pass filter operation includes a self-learning program, wherein the low-pass filter performs the self-learning process on the operation signal to achieve the operation signal Low-pass filtering to generate the low-pass filtering signal; wherein the self-learning procedure includes: (A) calculating an initial average value of the arithmetic signal; (B) compare the operation signal with the initial average value; (C) when the operation signal is not less than the initial average value, increase the initial average value to generate the low-pass filtered signal; (D) when the operation signal is less than the At the initial average value, reduce the initial average value to generate the low-pass filtered signal; (E) compare the operation signal with the low-pass filtered signal; (F) increase the operation signal when the operation signal is not less than the low-pass filtered signal Low-pass filtered signal to generate a new low-pass filtered signal; (G) when the arithmetic signal is less than the low-pass filtered signal, reduce the low-pass filtered signal to generate a new low-pass filtered signal; and (H) repeat Step (E). The multifunctional smart rack as described in item 5 of the patent application scope, wherein the control circuit further includes a debounce circuit for performing a debounce operation on the difference, the judgment signal, or the calculation signal, to To prevent noise from being triggered by multiple signals in the near-field induction signal; wherein the noise mitigation procedure further includes the debounce operation. The multifunctional smart rack as described in item 4, 5 or 8 of the patent scope, wherein the control circuit includes a micro-controller (MCU) used as the analog-to-digital converter and median filter , Slope limiter, low-pass filter and debounce circuit at least one of them. The multifunctional smart rack as described in item 1 of the scope of the patent application further includes: a driving motor for extending or retracting the multi-functional smart rack with a two-clamp arm, wherein: when controlling When the circuit determines that the multifunctional smart rack needs to clamp the portable device according to the near-field sensing signal, the control circuit notifies the drive motor to retract the two clamping arms of the multifunctional smart rack, so that the multi The functional smart rack clamps the portable device; and When the control circuit determines that the multifunctional smart rack needs to release the portable device according to the near-field sensing signal, the control circuit notifies the driving motor to extend the two clamping arms of the multifunctional smart rack, so that The multifunctional smart rack releases the portable device. The multifunctional smart rack as described in item 1 of the scope of the patent application further includes: a vibration sensor for detecting whether a vehicle body placed in the multifunctional smart rack has vibration conditions, wherein, when the vibration sensor Detecting that the vehicle body has a vibration condition, the vibration sensor notifies the control circuit to turn on a lighting device of the vehicle body, thereby illuminating the interior of the vehicle body, displaying the brand inside the vehicle body, or generating a warning function. The multifunctional smart rack as described in item 1 of the scope of the patent application further includes: a gravity sensor (G-sensor) for detecting whether a vehicle body placed in the multifunctional smart rack is moving, wherein, When the gravity sensor detects that the vehicle body is moving, the gravity sensor notifies the control circuit in order to turn on an in-vehicle anti-theft alarm system of the vehicle body, so that the portable device and the multifunctional smart rack An identity authentication procedure is performed by the Bluetooth connection method in order to carry out anti-theft alarm. The multifunctional smart rack as described in item 1 of the scope of the patent application further includes: a Bluetooth device for Bluetooth connection with the portable device, so that when the portable device is released, it has The music or video, the Bluetooth device notifies the control circuit so that the control circuit notifies a sound playback device in the car to output the music or video of the portable device; or when an identity authentication process is required, the Bluetooth The bud device notifies the control circuit to enable the control circuit to turn on an in-vehicle anti-theft alarm system of the car body, so that the portable device and the multi-functional smart rack can perform the identity authentication process through a Bluetooth connection for the purpose of performing Anti-theft alarm.

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