TWI589847B - System and method for testing motion sensor - Google Patents

Description

Motion sensor detection system and method

The present invention relates to a sensor detection system and method, and more particularly to a motion sensor detection system and method.

At present, Motion Sensors (MS, or Gesture sensors, GS), including infrared light-emitting diodes (IR LEDs), have been widely used in portable electronic products and wearable electronic products, including smart phones. , Panels, speakers (Audio Speakers), headphones and smart watches to provide contactless (Touchless) control applications. In addition, the existing 3 in 1 tester has been used in the sensor production line to detect Ambient Light Sensors (ALS), Proximity Sensors and motion sensors. . When detecting the motion sensor, the existing three-in-one detector uses a gray card with a reflectivity of 18% to move back and forth in the east-west direction and the north-south direction above the motion sensor, so that the action sensor is The light source generated by the light emitting unit is reflected by the gray card and projected to the light sensing unit of the motion sensor, thereby obtaining the detection signal. The processor electrically connected to the motion sensor can perform data calculation and processing according to the detection signal received by the light sensing unit of the motion sensor when the gray card is in different positions, to obtain the detection result of the motion sensor.

Please refer to FIG. 1. FIG. 1 is a schematic diagram of a detecting device 1 for detecting a motion sensor in a conventional three-in-one detector. Specifically, the detection procedure performed by using the existing detecting device 1 includes at least the following steps: (a) placing a gray card 11 having a reflectance of 18% directly at about 2 to 5 cm above the motion sensor 10 to be detected. One solid The light-emitting unit 101 that drives the motion sensor 10 by the control module 12 generates a light beam that is incident on the gray card 11. The light beam is reflected by the gray card 11 and projected onto the light sensing unit 102 of the motion sensor 10 to obtain an initial detection. (b) moving the gray card 11 from east to west, from west to east, from south to north, and from north to south through the driving device 13, and will be reflected by the gray card 11 at a plurality of time points and by the light sensing unit 10 The received detection signal is stored in a digital form in a memory (not shown); and (c) the initial detection signal and the detection signal are calculated by the processor 14 to obtain a detection result.

The advantage of using a three-in-one detector including a gray card 11 is that it can simulate the sensing mode in an actual application. However, the disadvantage of using this conventional three-in-one detector is that in order to drive the gray card 11 to move back and forth in the east-west and north-south directions above the motion sensor 10, it is necessary to be equipped with a driving device 13 (for example, an auto loader, Auto -Handler), which increases the structural complexity and manufacturing cost of the 3-in-1 detector. In addition, in order to detect the sensing performance of the motion sensor 10 in different directions, the gray card 11 must be moved back and forth, thereby increasing the detection time and causing the detection program of the detecting device 1 in the three-in-one detector to be used. The efficiency is reduced. The general detecting device 1 takes 9 to 10 seconds to complete the detecting process.

Accordingly, there is still a need to provide an improved motion sensor detection system and method to address the shortcomings of the prior art three-in-one detector.

In order to solve the above technical problem, according to one aspect of the present invention, a motion sensor detecting system for detecting a motion sensor including a light emitting unit and a light sensing unit, the motion sensor detecting system includes A detection beam generating module, a control module, and a processor module. The detection beam generating module is disposed above the motion sensor, wherein the detecting beam generating module intermittently projects a detecting beam to the light sensing unit. The control module is electrically connected to the detection beam generating module for controlling a time course in which the detecting beam generating module intermittently projects the detecting beam to the photo sensing unit. The processor module is electrically connected to the light sensing unit, wherein the processor module is configured according to The detection beam received by the light sensing unit to generate a detection result. The detection beam generating module includes a plurality of first direction detecting beam generators arranged along a first direction, a plurality of second direction detecting beam generators arranged along a second direction, and a plurality of third along a third a directionally arranged third direction detecting beam generator and a plurality of fourth direction detecting beam generators arranged in a fourth direction, the first direction and the second direction being opposite directions, the third direction being The fourth direction is two opposite directions, and the first direction and the second direction are perpendicular to the third direction and the fourth direction. The first direction detecting beam generator, the second direction detecting beam generator, the third direction detecting beam generator, and the fourth direction detecting beam generator respectively projecting a first detecting beam intermittently a second detection beam, a third detection beam, and a fourth detection beam to the photo sensing unit.

According to another aspect of the present invention, a method for detecting a motion sensor includes the following steps: (a) disposing a motion sensor including a light emitting unit and a light sensing unit in a detecting beam generating module (b) the detection beam generating module intermittently projects a detection beam to the light sensing unit; (c) is electrically connected to a control module of the detection beam generating module to control the The detection beam generating module intermittently projects the time course of the detecting beam to the photo sensing unit; and (d) a processor module electrically connected to the photo sensing unit, according to the light The detection beam received by the sensing unit to generate a detection result. The detection beam generating module includes a plurality of first direction detecting beam generators arranged along a first direction, a plurality of second direction detecting beam generators arranged along a second direction, and a plurality of third along a third a directionally arranged third direction detecting beam generator and a plurality of fourth direction detecting beam generators arranged in a fourth direction, the first direction and the second direction being opposite directions, the third direction being The fourth direction is two opposite directions, and the first direction and the second direction are perpendicular to the third direction and the fourth direction. Wherein the first direction detecting beam generator, the second direction detecting beam generator, and the third direction detecting beam generator are And the fourth direction detecting beam generator intermittently projects a first detecting beam, a second detecting beam, a third detecting beam and a fourth detecting beam to the photo sensing unit.

The main technical means of the present invention is that the motion sensor detection system and method provided by the present invention replaces the illumination unit of the prior art motion sensor and the gray card provided by a detection beam generating module disposed at a fixed position. The function. Specifically, the triad sensor different from the prior art uses the illumination unit of the motion sensor to be detected to project the light source to the gray card, and then reflects the light source through the gray card to project the light sensing unit to the motion sensing unit. The invention uses a detection beam generating module to simulate a light source reflected from different directions to achieve the test effect.

Since the system and method for detecting the beam generating module of the present invention do not require additional use of a driving device conventionally used for moving a gray card, the structural complexity and manufacturing cost of the motion sensor detecting system can be greatly reduced. Moreover, since the procedure for reciprocating the gray card is omitted, the operational procedure of the motion sensor detecting system and method provided by the present invention can be simplified, and the operation time is also significantly reduced. Furthermore, since the apparatus for detecting an ambient light sensor includes a light source panel in the existing three-in-one detector, the detection beam generating module of the present invention can be integrated with the light source panel, thereby further reducing Detector production and maintenance costs.

For a better understanding of the features and technical aspects of the present invention, reference should be made to the accompanying drawings.

1‧‧‧Detection device

11‧‧‧ Gray card

12‧‧‧Control Module

13‧‧‧Drive Module

14‧‧‧Processor Module

10‧‧‧Action sensor

101‧‧‧Lighting unit

102‧‧‧Light sensing unit

2‧‧‧motion sensor detection system

21‧‧‧Detection beam generation module

211‧‧‧Lighting surface

212,212a, 212b‧‧‧first direction detection beam generator

213,213a, 213b‧‧‧second direction detection beam generator

214, 214a, 214b‧‧‧ third direction detection beam generator

215, 215a, 215b‧‧‧ fourth direction detection beam generator

22‧‧‧Control Module

23‧‧‧Processor Module

3‧‧‧ motion sensor

31‧‧‧Lighting unit

32‧‧‧Light sensing unit

S‧‧‧Detecting beam

L1‧‧‧ first direction

L2‧‧‧ second direction

L3‧‧‧ third direction

L4‧‧‧ fourth direction

1 is a schematic diagram of a detecting device for detecting a motion sensor in a conventional three-in-one detector; FIG. 2 is a schematic diagram of a motion sensor detecting system and a motion sensor according to an embodiment of the present invention; A bottom view of the detection beam generating module of the motion sensor detecting system provided by the embodiment of the invention; 4 is a schematic cross-sectional view showing a detection beam generating module and a motion sensor at a first time point according to an embodiment of the present invention; FIG. 5 is a detection beam generating module and a motion sensor according to an embodiment of the present invention; FIG. 6 is a schematic cross-sectional view of the detection beam generating module and the motion sensor at a third time point according to an embodiment of the present invention; FIG. 7 is an embodiment of the present invention. A schematic cross-sectional view of the provided detection beam generating module and the motion sensor at a fourth time point; and FIG. 8 is a flow chart of the motion sensor detecting method provided by the embodiment of the present invention.

The following is a specific example to illustrate the implementation of the "motion sensor detection system and method" disclosed in the present invention, and those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in the specification. The present invention can be implemented or applied in various other specific embodiments, and various modifications and changes can be made without departing from the spirit and scope of the invention. In addition, the drawings of the present invention are merely illustrative and are not intended to be described in terms of actual dimensions. The following embodiments will further explain the related technical content of the present invention, but the disclosure is not intended to limit the technical scope of the present invention.

First, please refer to Figure 2. 2 is a schematic diagram of a motion sensor detection system and a motion sensor according to an embodiment of the present invention. The motion sensor detecting system 2 is a motion sensor 3 for detecting the light emitting unit 31 and the light sensing unit 32. The motion sensor 3 typically includes a single infrared light emitting diode as the light emitting unit 31, and the light sensing unit 32 includes four Directional Detectors integrated into the same integrated wafer (IC). The four orientation detectors are respectively diodes for detecting east, west, south, and north directions.

Referring to FIG. 2 again, the motion sensor detection system 2 provided by the embodiment of the present invention includes a detection beam generation module 21, a control module 22, and a processor module 23. The detection beam generating module 21 is disposed above the motion sensor 3. As shown in FIG. 2, in the embodiment of the present invention, the detection beam generating module 21 has a light emitting surface 211, and the light emitting surface 211 faces the light sensing unit 32 of the motion sensor 3 to intermittently project the detecting beam S to the light sensing. Unit 32. The distance between the light emitting surface 211 and the light sensing unit 32 may be 8-10 cm. However, the invention is not limited thereto.

The control module 22 is electrically connected to the detection beam generating module 21 for controlling the time course of the detection beam generating module 21 intermittently projecting the detecting beam S to the photo sensing unit 32. As shown in FIG. 2 , the control module 22 can also be electrically connected to the light sensing unit 32 of the motion sensor 3 at the same time. The processor module 23 is electrically connected to the light sensing unit 32, wherein the processor module 23 generates a detection result according to the detection beam S received by the light sensing unit 32. In the embodiment shown in FIG. 2 , the processor module 23 is electrically connected to the light sensing unit 32 through the control module 22 .

Next, please refer to Figure 3. FIG. 3 is a bottom view of a detection beam generating module of a motion sensor detecting system according to an embodiment of the present invention. In the embodiment of the present invention, the light-emitting surface 211 of the detection beam generating module 21 is provided with a plurality of first direction detecting beam generators 212 arranged in the first direction L1 and a plurality of second direction detecting lines L2 arranged in the second direction. The beam generator 213, a plurality of third direction detecting beam generators 214 arranged in the third direction L3, and a plurality of fourth direction detecting beam generators 215 arranged in the fourth direction L4. The first direction L1 and the second direction L2 are opposite directions, and the third direction L3 and the fourth direction L4 are opposite directions, and the first direction L1 and the second direction L2 are perpendicular to the third direction L3 and the fourth direction L4. If the detection light beam generating module 21 is disposed such that the light emitting surface 211 is parallel to the ground surface, the first direction L1 may be a direction toward the east side, the second direction L2 may be a direction toward the west side, and the third direction L3 may be a south side direction. The direction, and the fourth direction L4 may be a direction toward the north side, however, the manner of setting the detection beam generating module 21 of the present invention is not limited thereto.

For example, in FIG. 3, the light emitting surface 211 includes four first direction detecting beam generators 212 arranged in the first direction L1, and four second direction detecting beam generators 213 arranged in the second direction L2. Four third parties arranged in the third direction L3 The beam generator 215 is detected toward the detecting beam generator 214 and four fourth directions arranged in the fourth direction L4. In other words, when the light-emitting surface 211 is disposed in parallel with the surface, the detection beam generating module 21 is disposed, and eight detection beam generators are disposed in the east-west direction and the north-south direction on the light-emitting surface 211, respectively. In the embodiment of the present invention, the first direction detecting beam generator 212, the second direction detecting beam generator 213, the third direction detecting beam generator 214, and the fourth direction detecting beam generator 215 are all infrared light emitting diodes. Body component. As a result, the detection beam S generated by the detection beam generator 212 can simulate a light source emitted by the light-emitting unit 31, which is an infrared light-emitting diode, and reflected by the gray card 11.

In the above, when the detection process of the motion sensor 3 is performed, the control module 22 controls the plurality of first direction detecting beam generators 212 and the plurality of second direction detecting beams of the detecting beam generating module 21 at each time point. The generator 213, the plurality of third direction detecting beam generators 214, and one of the plurality of fourth direction detecting beam generators 215 project the detecting beam S to the light sensing unit 32. In other words, at one point in time, the detection beam generating module 21 produces only one detection beam S. The detection beam S is an infrared beam.

Please refer to FIG. 4 and FIG. 5 and refer to FIG. 3 at the same time. 4 and FIG. 5 are schematic cross-sectional views of the detection beam generating module and the motion sensor along the first direction L1 and the second direction L2 at two consecutive time points according to an embodiment of the present invention. The control module 22 controls the first of the plurality of first direction detecting beam generators 212 of the detecting beam generating module 21 at the first time point as shown in FIG. 3 to be closest to the outside of the control detecting beam generating module 21. The direction detecting beam generator 212a generates a detecting beam S that is projected to the light sensing unit 32.

Next, at a second time point as shown in FIG. 4, the control module 22 controls the outer side of the second proximity detecting beam generating module 21 of the plurality of first direction detecting beam generators 212 of the detecting beam generating module 21. The first direction detecting beam generator 212b (which is adjacent to the first direction detecting beam generator 212a that generates the detecting beam S at the first time point) generates the detecting beam S projected to the photo sensing unit 32. And so on, in At the next time point, the control module 22 continues to sequentially control the other first direction detecting beam generators 212 to generate the detecting beam S.

In the above, after the plurality of first direction detecting beam generators 212 sequentially generate the detecting beam S, the control module 22 controls the second of the plurality of second direction detecting beam generators 213 which is closest to the center of the detecting beam generating module 21. The direction detecting beam generator 213a generates a detecting beam S that is projected to the light sensing unit 32. Then, the control module 22 controls the second direction detecting beam generator 213b of the second proximity detecting beam generating module 21 of the plurality of second direction detecting beam generators 213 of the detecting beam generating module 21 to generate a projection to the light sense. The detection beam S of the measuring unit 32. And so on, at the next time point, the control module 22 continues to sequentially control the other second direction detecting beam generators 213 to generate the detecting beam S.

In this way, the present invention can utilize the detection beam generating module 21 to simulate a light source generated by the gray card moving above the motion sensor 3 toward the second direction L2. Similarly, the control module 21 can sequentially control the second direction detecting beam generator 213 and the first direction detecting beam generator 212 to generate the detecting beam S in a manner opposite to the above description, thereby simulating the gray card in motion sensing. A light source generated by moving the device 3 upward in the first direction L1.

Next, please refer to FIG. 6 and FIG. 7 and refer to FIG. 3 at the same time. FIG. 6 and FIG. 7 are schematic cross-sectional views of the motion sensor detection system and the motion sensor according to the embodiment of the present invention at two consecutive time points along the third direction L3 and the fourth direction L4. The control module 22 controls the third of the plurality of third direction detecting beam generators 214 of the detecting beam generating module 21 at the third time point as shown in FIG. 6 to be closest to the outside of the control detecting beam generating module 21. The direction detecting beam generator 214a generates a detecting beam S that is projected to the light sensing unit 32. In the embodiment of the present invention, the third time point and the second time point are not consecutive points of time.

Next, at a fourth time point as shown in FIG. 5, the control module 22 controls the outer side of the second proximity detecting beam generating module 21 of the plurality of fourth direction detecting beam generators 212 of the detecting beam generating module 21. a third direction detecting beam generator 214b (which The third direction detecting beam generator 214a) which generates the detecting beam S at the third time point generates the detecting beam S projected to the photo sensing unit 32. And so on, at the next time point, the control module 22 continues to sequentially control the other third direction detecting beam generators 214 to generate the detecting beam S.

In the above, after the plurality of third direction detecting beam generators 214 sequentially generate the detecting beam S, the control module 22 controls the fourth of the plurality of fourth direction detecting beam generators 215 which is closest to the center of the detecting beam generating module 21. The direction detecting beam generator 215a generates a detecting beam S that is projected to the light sensing unit 32. Then, the control module 22 controls the fourth direction detecting beam generator 215b of the second proximity detecting beam generating module 21 of the plurality of fourth direction detecting beam generators 215 of the detecting beam generating module 21 to generate a projection to the light sense. The detection beam S of the measuring unit 32. And so on, at the next time point, the control module 22 continues to sequentially control the other fourth direction detecting beam generators 215 to generate the detecting beam S.

In this way, the present invention can utilize the detection beam generating module 21 to simulate a light source generated by the gray card moving over the motion sensor 3 toward the fourth direction L4. Similarly, the control module 21 can sequentially control the fourth direction detecting beam generator 215 and the third direction detecting beam generator 214 to generate the detecting beam S in a manner opposite to the above description, thereby simulating the gray card in motion sensing. A light source generated by moving the device 3 upward in the third direction L3.

In summary, by controlling the time interval of the detection beam generating module 21 intermittently projecting the detection beam S to the light sensing unit 32 through the control module 22, the motion sensor detecting system 2 of the present invention can simulate the existing three-in-one. The detector 1 utilizes the detection effect achieved by the gray card 11. In other words, at the same time point, the plurality of first direction detecting beam generators 212 of the detecting beam generating module 21, the plurality of second direction detecting beam generators 213, the plurality of third direction detecting beam generators 214, and Only one of the plurality of fourth direction detecting beam generators 215 generates the light sensing unit 32 that is projected to the motion sensor 3, so that the gray card 11 of the existing three-in-one detector 1 can be simulated to be set in motion sensing. Projected to the light sensing unit 32 by reflection when different positions above the device 3 Beam.

In addition, in order to accurately simulate the sensing mode in actual use, the intensity of the detecting beam S can also be controlled by the control module 22. Specifically, the detection beam generating module 21 can be corrected by the control module 22, so that the plurality of first direction detecting beam generators 212 and the plurality of second direction detecting beam generators 213 in the detecting beam generating module 21, The plurality of third direction detecting beam generators 214 and the plurality of fourth direction detecting beam generators 215 generate detecting beams S having the same or different intensities. Referring again to FIG. 4, in the first direction L1, the plurality of first direction detecting beam generators 212 can respectively generate the detecting beams S having different intensities at different time points.

Specifically, the above-mentioned program for correcting may include: setting a gray card 11 (or an object) conventionally used for detecting at a fixed position of about 2-4 cm above the motion sensor 3, and then transmitting the light emitting unit. The light beam is projected onto the surface of the gray card 11, and the light beam signal reflected by the surface of the gray card 11 is received by the light sensing unit 32. Next, the gray card 11 is removed to detect that the light beam generating module 21 replaces the gray card 11 and is disposed at another fixed position about 8-10 cm apart from the motion sensor 3. According to the measured beam signal, the intensity (or brightness) of the detection beam S generated by the detection beam generating module 21 is adjusted by the control module 22, and the reflected beam obtained by detecting the gray card 21 can be simulated. effect.

The plurality of first direction detecting beam generators 212, the plurality of second direction detecting beam generators 213, the plurality of third direction detecting beam generators 214, and the plurality of fourth direction detecting beam generating devices using the detecting beam generating module 21 In the process of projecting the detection light source S to the light sensing unit 32 of the motion sensor 3 sequentially and separately, the detection light source S projected to the light sensing unit 32 is stored via the control module 22 and transmitted to the processor. The module 23 performs an operation to obtain a detection result. The processor module 23 can be a microprocessor.

In addition, referring to FIG. 8, the present invention further provides a method for detecting a motion sensor. The detection method of the motion sensor provided by the present invention comprises the following steps.

First, the motion sensing including the light emitting unit 31 and the light sensing unit 32 will be included. The device 3 is disposed below the detection beam generating module 21 (step (a), S100 in Fig. 8). The detection beam generating module 21 has a light emitting surface 211 that faces the light sensing unit 32 of the motion sensor 3. The distance between the light emitting surface 211 and the light sensing unit 32 may be 2-5 cm. However, the invention is not limited thereto.

Then, the detection beam generating module 211 includes a plurality of first direction detecting beam generators 212 arranged in the first direction L1, a plurality of second direction detecting beam generators 213 arranged in the second direction L2, and a plurality of third The third direction detecting beam generator 214 arranged in the direction L3 and the plurality of fourth direction detecting beam generators 215 arranged in the fourth direction L4. The first direction L1 and the second direction L2 are opposite directions, and the third direction L3 and the fourth direction L4 are opposite directions, and the first direction L1 and the second direction L2 are perpendicular to the third direction L3 and the fourth direction L4.

Next, the detecting beam generating module 21 intermittently projects the detecting beam S to the light sensing unit 32 (step (b), S102 in FIG. 8), and the control module 22 electrically connected to the detecting beam generating module 21 To control the time course in which the detection beam generating module 21 intermittently projects the detection beam S to the light sensing unit 32 (step (c), S104 in FIG. 8). The execution details of the detection of the light beam S from the detection beam generating module 21 to the light sensing unit 32 are the same as those of the detection system 2 for the motion sensor, and the operation mode of the control module 22 is the same, and will not be described herein.

Then, the detection beam S received by the light sensing unit 32 is electrically connected to the processor module 23 of the light sensing unit 32 to generate a detection result (step (c), S106 in FIG. 8). The manner and contents of the calculation using the processor module 23 are the same as those described above for the detection system 2 of the motion sensor, and will not be described again.

In summary, the detection system 2 and method of the motion sensor provided by the embodiment of the present invention can respectively pass the detection beam generating module 21, which is disposed above the motion sensor 3. The detection beam generating module 21 intermittently projects the detection beam S to the light sensing unit 32 ′′ and “the motion sensor 3 including the light emitting unit 31 and the light sensing unit 32 is disposed under the detecting beam generating module 21 . ...detection beam generating module 21 intermittently projecting detection beam S The technical means of the light sensing unit 32" is to reduce the complexity of the detection system and reduce the time required for the detection.

Specifically, by using the detection beam generating module 21 of the present invention, the motion sensor 3 does not need to generate a light source through the internal light emitting unit 3, and the necessity of setting the gray card 11 in the prior art can be omitted, so that it is not necessary. A drive module 13 for moving the gray card 11 is provided in the system. As a result, the motion sensor detection system 2 of the present invention has a great improvement in both structural complexity and operational procedures compared to the conventional three-in-one detector. For example, it takes 9 to 10 seconds to complete the detection with respect to the existing three-in-one detector, and the motion sensor detection of the present invention can complete the detection in about 5 seconds. In other words, the motion sensor detection system 2 and method of the present invention can reduce the detection time by about 50%.

Furthermore, since the apparatus for detecting an ambient light sensor includes a light source panel in the existing three-in-one detector, the detection system 2 of the motion sensor provided by the present invention can transmit the detection beam generating module 21 Integration with the light source panel, thereby further reducing the production and maintenance costs of the three-in-one detector.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Therefore, equivalent technical changes made by using the present specification and the contents of the drawings are included in the protection scope of the present invention. .

2‧‧‧motion sensor detection system

21‧‧‧Detection beam generation module

211‧‧‧Lighting surface

22‧‧‧Control Module

23‧‧‧Processor Module

3‧‧‧ motion sensor

31‧‧‧Lighting unit

32‧‧‧Light sensing unit

S‧‧‧Detecting beam

Claims (7)

A motion sensor detecting system for detecting a motion sensor including a light emitting unit and a light sensing unit, the motion sensor detecting system comprising: a detecting beam generating module disposed on the motion sensing Above the device, wherein the detecting beam generating module intermittently projects a detecting beam to the light sensing unit; a control module electrically connected to the detecting beam generating module for controlling the detecting a light-emitting module intermittently projecting a time course of the detection beam to the light sensing unit; and a processor module electrically connected to the light sensing unit, wherein the processor module is Depicting the detection beam received by the light sensing unit to generate a detection result; wherein the detection beam generation module comprises a plurality of first direction detection beam generators arranged along a first direction, and a plurality of edges a second direction detecting beam generator arranged in a second direction, a plurality of third direction detecting beam generators arranged in a third direction, and a plurality of fourth directions arranged in a fourth direction In the beam generator, the first direction and the second direction are opposite directions, and the third direction and the fourth direction are opposite directions, and the first direction is perpendicular to the second direction The third direction and the fourth direction; wherein the first direction detecting beam generator, the second direction detecting beam generator, the third direction detecting beam generator, and the fourth direction detecting The beam generator intermittently projects a first detection beam, a second detection beam, a third detection beam, and a fourth detection beam to the photo sensing unit. The motion sensor detecting system of claim 1, wherein the control module is configured to control a plurality of the first direction detecting beam generators, a plurality of the second direction detecting beam generators, and a plurality of The third direction detecting beam generator and more The fourth direction detecting beam generator sequentially projects the first detecting beam, the second detecting beam, the third detecting beam and the fourth detecting beam to the photo sensing unit Cheng. The motion sensor detecting system of claim 1, wherein the light emitting unit is an infrared light emitting diode, and the first direction detecting beam generator, the second direction detecting beam generator, and the The third direction detecting beam generator and the fourth direction detecting beam generator are both infrared light emitting diode elements. The motion sensor detection system of claim 1, wherein the control module is electrically connected to the detection beam generating module for controlling the intensity of the detection beam. A method for detecting a motion sensor, comprising the steps of: (a) disposing a motion sensor including a light emitting unit and a light sensing unit under a detecting beam generating module; and (b) detecting the detecting beam The generating module intermittently projects a detecting beam to the light sensing unit; and (c) electrically controlling a control module of the detecting beam generating module to control the intermittent projection of the detecting beam generating module a time course of detecting the light beam to the light sensing unit; and (d) a processor module electrically connected to the light sensing unit, according to the received by the light sensing unit Detecting a light beam to generate a detection result; wherein the detection beam generation module includes a plurality of first direction detection beam generators arranged along a first direction, and a plurality of second direction detection beam beams arranged along a second direction a generator, a plurality of third direction detecting beam generators arranged in a third direction, and a plurality of fourth direction detecting beam generators arranged in a fourth direction, the first direction and the second direction being two in contrast The third direction and the fourth direction are opposite directions, and the first direction and the second direction are perpendicular to the third direction and the fourth direction; wherein the first direction Detecting beam generator, said second direction detecting beam The generator, the third direction detecting beam generator and the fourth direction detecting beam generator respectively intermittently project a first detecting beam, a second detecting beam, a third detecting beam and a fourth detecting beam to The light sensing unit. The method of detecting a motion sensor according to claim 5, wherein the control module controls a plurality of the first direction detecting beam generators, a plurality of the second direction detecting beam generators, and the plurality of The third direction detecting beam generator and the plurality of the fourth direction detecting beam generators sequentially project the first detecting beam, the second detecting beam, the third detecting beam, and the fourth detecting beam, respectively The time course to the light sensing unit. The method of detecting a motion sensor according to claim 5, wherein the control module is electrically connected to the detection beam generating module for controlling the intensity of the detection beam.