TWI625705B - Photoelectric module, motion sensing device and driving method thereof - Google Patents
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Abstract
一種運動感測裝置，用以偵測物體的移動以產生偵測結果。運動感測裝置包括第一光感測器、光電模組以及處理器。第一光感測器用以接收環境光並產生第一電訊號。光電模組包括至少一發光元件以及第二光感測器。第二光感測器配置於至少一發光元件旁。處理器用以根據第一電訊號產生偵測結果。處理器用以根據偵測結果驅動至少一發光元件發出至少一光線，且用以驅動第二光感測器接收環境光並產生第二電訊號，並根據第二電訊號調整偵測結果。當至少一發光元件發出至少一光線時，第二光感測器不接收環境光。另外，一種光電模組以及運動感測裝置的驅動方法亦被提出。A motion sensing device is used to detect the movement of an object to generate a detection result. The motion sensing device includes a first light sensor, a photoelectric module, and a processor. The first light sensor is used for receiving ambient light and generating a first electrical signal. The photoelectric module includes at least one light-emitting element and a second light sensor. The second light sensor is disposed beside at least one light emitting element. The processor is configured to generate a detection result according to the first electrical signal. The processor is used to drive at least one light emitting element to emit at least one light according to the detection result, and is used to drive the second light sensor to receive ambient light and generate a second electrical signal, and adjust the detection result according to the second electrical signal. When at least one light emitting element emits at least one light, the second light sensor does not receive ambient light. In addition, a driving method of a photoelectric module and a motion sensing device is also proposed.
Description
本發明是有關於一種感測裝置及其驅動方法，且特別是有關於一種光電模組、運動感測裝置及其驅動方法。The invention relates to a sensing device and a driving method thereof, and in particular to a photoelectric module, a motion sensing device and a driving method thereof.
在一般的運動感測器（Motion Sensor）中，會設置光感測器來感測物體或人的移動。光感測器例如包括利用光電效應（Photoelectric Effect）來進行感測的感測器類型，也包括利用焦電效應（Pyroelectric Effect）來進行感測的感測器類型。焦電型紅外光感測器（Passive Infrared Sensor）可接收受偵測環境中的物體釋放的紅外光，其可以利用環境溫度的變化，來感測物體的移動。例如，當有人（或其它生物，如狗、貓等）進入感測範圍時，其體溫的變化會造成紅外光強度的變化，因此紅外光感測器便可以感測到其移動。In a general motion sensor, a light sensor is provided to sense the movement of an object or a person. The light sensor includes, for example, a sensor type using a photoelectric effect to perform sensing, and also includes a sensor type using a pyroelectric effect to perform sensing. A pyroelectric infrared sensor (Passive Infrared Sensor) can receive infrared light emitted by objects in the detected environment. It can use changes in ambient temperature to sense the movement of objects. For example, when someone (or other creatures, such as dogs, cats, etc.) enters the sensing range, changes in their body temperature will cause changes in the intensity of infrared light, so the infrared light sensor can sense their movement.
在運動感測器中，紅外光感測器還會搭配其他光感測器以共同偵測環境光。例如，紅外光感測器一般還會搭配可接收可見光的光感測器，且此光感測器可用以補償或校正紅外光感測器對環境光的偵測結果。或者，此光感測器可以偵測環境光強度，藉以判斷當有人或其他生物進入感測範圍時，是否開啟或調控相關的受控電器，如開啟燈或是揚聲器，或調控燈的亮度或是揚聲器的響度。另外，運動感測器也會搭配發光元件，以使外界知曉其感測或運作的狀態。為了避免發光元件發出的光線被可接收可見光的光感測器所接收而造成干擾或誤判，一般而言，此光感測器與發光元件會分別設置在不同的透鏡結構中，以避免互相干擾。藉由設置相互隔絶的光路徑，可以避免光感測器因發光元件所發出的光線的干擾，造成對於環境光的誤判。然而，如此一來，運動感測器便需要設計多個透鏡結構來分別配合光感測器以及發光元件，而運動感測器的外觀也要對應透鏡結構的設置而提供多個對應的挖孔，此將不利於運動感測器外觀的簡潔以及實現其尺寸極小化的設計。Among the motion sensors, the infrared light sensor is also used in conjunction with other light sensors to jointly detect ambient light. For example, an infrared light sensor is usually also equipped with a light sensor that can receive visible light, and the light sensor can be used to compensate or correct the detection result of the infrared light sensor for ambient light. Alternatively, the light sensor can detect the intensity of the ambient light, so as to determine whether or not to control or control related electrical appliances, such as turning on a lamp or a speaker, or regulating the brightness or Is the loudness of the speaker. In addition, the motion sensor is also equipped with a light emitting element, so that the outside world knows its sensing or operating state. In order to prevent the light emitted by the light emitting element from being interfered or misjudged by the light sensor that can receive visible light, in general, the light sensor and the light emitting element are respectively arranged in different lens structures to avoid mutual interference . By setting light paths that are isolated from each other, it is possible to prevent the light sensor from being interfered by the light emitted from the light emitting element, causing misjudgment of ambient light. However, in this case, the motion sensor needs to design multiple lens structures to match the light sensor and the light-emitting element, and the appearance of the motion sensor must also correspond to the setting of the lens structure to provide multiple corresponding digging holes. This will not be conducive to the simplicity of the appearance of the motion sensor and the design of miniaturizing its size.
本發明提供一種運動感測裝置，其發光元件以及光感測器藉由分時（Time Sharing）驅動以避免光學上的干擾。The invention provides a motion sensing device. The light emitting element and the light sensor are driven by time sharing to avoid optical interference.
本發明提供一種光電模組，其發光元件以及光感測器藉由分時驅動以避免光學上的干擾。The invention provides a photoelectric module, whose light-emitting elements and light sensors are driven by time sharing to avoid optical interference.
本發明提供一種運動感測裝置的驅動方法，其發光元件以及光感測器藉由分時驅動以避免光學上的干擾。The invention provides a method for driving a motion sensing device. The light emitting element and the light sensor are driven by time sharing to avoid optical interference.
本發明實施例提出一種運動感測裝置，用以偵測物體的移動以產生偵測結果。運動感測裝置包括第一光感測器、光電模組以及處理器。第一光感測器用以接收環境光並產生第一電訊號。光電模組包括至少一發光元件以及第二光感測器。第二光感測器配置於至少一發光元件旁。處理器電性連接第一光感測器、至少一發光元件以及第二光感測器。處理器用以根據第一電訊號產生偵測結果。處理器用以根據偵測結果驅動至少一發光元件發出至少一光線，且用以驅動第二光感測器接收環境光並產生第二電訊號，並根據第二電訊號調整偵測結果。當至少一發光元件發出至少一光線時，第二光感測器不接收環境光。An embodiment of the present invention provides a motion sensing device for detecting the movement of an object to generate a detection result. The motion sensing device includes a first light sensor, a photoelectric module, and a processor. The first light sensor is used for receiving ambient light and generating a first electrical signal. The photoelectric module includes at least one light-emitting element and a second light sensor. The second light sensor is disposed beside at least one light emitting element. The processor is electrically connected to the first light sensor, the at least one light emitting element and the second light sensor. The processor is configured to generate a detection result according to the first electrical signal. The processor is used to drive at least one light emitting element to emit at least one light according to the detection result, and is used to drive the second light sensor to receive ambient light and generate a second electrical signal, and adjust the detection result according to the second electrical signal. When at least one light emitting element emits at least one light, the second light sensor does not receive ambient light.
本發明實施例提出一種光電模組，適於設置於運動感測裝置中。運動感測裝置用以偵測物體的移動以產生偵測結果，且處理器用以調整偵測結果。光電模組包括至少一發光元件以及光感測器。光感測器配置於至少一發光元件旁。處理器電性連接至少一發光元件以及光感測器。處理器用以根據偵測結果驅動至少一發光元件發出至少一光線，且用以驅動光感測器接收環境光並產生電訊號，並根據電訊號調整偵測結果。當至少一發光元件發出至少一光線時，光感測器不接收環境光。An embodiment of the present invention provides a photoelectric module, which is suitable for being installed in a motion sensing device. The motion sensing device is used to detect the movement of the object to generate a detection result, and the processor is used to adjust the detection result. The optoelectronic module includes at least one light emitting element and a light sensor. The light sensor is disposed beside at least one light emitting element. The processor is electrically connected to at least one light emitting element and a light sensor. The processor is used to drive at least one light emitting element to emit at least one light according to the detection result, and is used to drive the light sensor to receive ambient light and generate an electric signal, and adjust the detection result according to the electric signal. When at least one light emitting element emits at least one light, the light sensor does not receive ambient light.
本發明實施例提出一種運動感測裝置的驅動方法。運動感測裝置用以偵測物體的移動以產生偵測結果。運動感測裝置的驅動方法包括：驅動第一光感測器以接收環境光並產生第一電訊號，且根據第一電訊號產生偵測結果；根據偵測結果驅動至少一發光元件發出至少一光線；以及驅動第二光感測器接收環境光並產生第二電訊號，且根據第二電訊號調整偵測結果。當至少一發光元件發出至少一光線時，第二光感測器不接收環境光。An embodiment of the present invention provides a driving method for a motion sensing device. The motion sensing device is used to detect the movement of an object to generate a detection result. A driving method of a motion sensing device includes: driving a first light sensor to receive ambient light and generating a first electric signal, and generating a detection result according to the first electric signal; and driving at least one light emitting element to emit at least one according to the detection result. Light; and driving a second light sensor to receive ambient light and generate a second electrical signal, and adjust a detection result according to the second electrical signal. When at least one light emitting element emits at least one light, the second light sensor does not receive ambient light.
基於上述，本發明實施例的運動感測裝置、光電模組以及運動感測裝置的驅動方法中，處理器用以根據偵測結果驅動發光元件發出光線，且用以驅動光感測器接收環境光並產生相應的電訊號，並根據此電訊號調整偵測結果。另外，當發光元件發出光線時，光感測器不接收環境光。因此，發光元件以及光感測器可以藉由分時驅動以避免光學上的干擾。發光元件以及光感測器可以設計成共用同一個透鏡以進行光線的傳遞，使得運動感測裝置可以減少透鏡的使用而具有較小的體積、較低的材料成本以及較低的組裝成本。另外，運動感測裝置具有簡化的組裝構件而有利於其外觀設計上的簡潔。Based on the above, in the motion sensing device, the photoelectric module, and the driving method of the motion sensing device according to the embodiments of the present invention, the processor is configured to drive the light emitting element to emit light according to the detection result, and is used to drive the light sensor to receive ambient light A corresponding signal is generated and the detection result is adjusted according to this signal. In addition, when the light emitting element emits light, the light sensor does not receive ambient light. Therefore, the light emitting element and the light sensor can be driven by time sharing to avoid optical interference. The light emitting element and the light sensor can be designed to share the same lens for light transmission, so that the motion sensing device can reduce the use of the lens and have a smaller volume, a lower material cost, and a lower assembly cost. In addition, the motion sensing device has simplified assembly components, which facilitates the simplicity of its appearance design.
為讓本發明的上述特徵和優點能更明顯易懂，下文特舉實施例，並配合所附圖式作詳細說明如下。In order to make the above features and advantages of the present invention more comprehensible, embodiments are hereinafter described in detail with reference to the accompanying drawings.
圖1A繪示本發明一實施例的運動感測裝置的外觀圖，且圖1B繪示圖1A實施例的運動感測裝置的內部結構示意圖。請參考圖1A以及圖1B，在本實施例中，運動感測裝置100包括第一光感測器110、光電模組120、處理器130（未繪示於圖1A以及圖1B，請參考圖3繪示的處理器130）、殼體102以及殼體104。第一光感測器110、光電模組120以及處理器130例如是由殼體102以及殼體104所包覆。詳細而言，為了清楚呈現運動感測裝置100的內部結構，圖1B省略繪示殼體102。FIG. 1A is an external view of a motion sensing device according to an embodiment of the present invention, and FIG. 1B is a schematic diagram of an internal structure of the motion sensing device according to the embodiment of FIG. 1A. Please refer to FIG. 1A and FIG. 1B. In this embodiment, the motion sensing device 100 includes a first light sensor 110, a photoelectric module 120, and a processor 130 (not shown in FIG. 1A and FIG. 1B, please refer to FIG. 1A and FIG. 1B). The processor 130 shown in FIG. 3), the housing 102 and the housing 104. The first light sensor 110, the photoelectric module 120 and the processor 130 are covered by, for example, the casing 102 and the casing 104. In detail, in order to clearly present the internal structure of the motion sensing device 100, the casing 102 is omitted in FIG. 1B.
在本實施例中，第一光感測器110用以接收環境光AL。運動感測裝置100藉由第一光感測器110接收環境光AL而可用以偵測物體的移動以產生偵測結果。具體而言，第一光感測器110為紅外光感測器IFS，其可以例如是透過焦電效應（Pyroelectric Effect）來偵測物體的移動。舉例而言，紅外光感測器IFS可以接收受偵測環境光之中物體所釋放的紅外光。當物體移動時，紅外光感測器IFS便可基於偵測環境溫度的變化而產生電訊號。在本實施例中，物體可以是生物體，例如是人體或貓、狗等生物體，本發明並不以此為限。舉例而言，當生物體進入紅外光感測器IFS的感測範圍時，生物體體溫的變化會造成紅外光強度的變化，因此紅外光感測器IFS便可以感測到生物體的移動。In this embodiment, the first light sensor 110 is used to receive ambient light AL. The motion sensing device 100 receives the ambient light AL through the first light sensor 110 and can be used to detect the movement of the object to generate a detection result. Specifically, the first light sensor 110 is an infrared light sensor IFS, which may detect a movement of an object through a Pyroelectric Effect, for example. For example, the infrared light sensor IFS can receive infrared light emitted by objects in the detected ambient light. When the object moves, the infrared light sensor IFS can generate an electrical signal based on detecting changes in the ambient temperature. In this embodiment, the object may be a living body, such as a human body or a living body such as a cat, a dog, and the like, but the present invention is not limited thereto. For example, when a living body enters the sensing range of the infrared light sensor IFS, a change in the body temperature of the living body causes a change in the intensity of the infrared light, so the infrared light sensor IFS can sense the movement of the living body.
圖2繪示圖1A實施例的光電模組的結構示意圖，且圖3繪示圖1A實施例的運動感測裝置的部分構件的連接關係的概要示意圖。請先同時參考圖1A以及圖3，在本實施例中，第一光感測器110用以接收環境光AL後而產生第一電訊號S1。處理器130電性連接第一光感測器110，且根據第一電訊號S1產生上述偵測結果。具體而言，在一些實施例中，運動感測裝置100可以例如透過有線或無線的方式連接外部網路，或者可以連接揚聲器、警示器、顯示裝置或是其他裝置以根據上述偵測結果來實現不同的應用，本發明並不以此為限。FIG. 2 is a schematic structural diagram of the photovoltaic module of the embodiment of FIG. 1A, and FIG. 3 is a schematic diagram of a connection relationship of some components of the motion sensing device of the embodiment of FIG. 1A. Please refer to FIG. 1A and FIG. 3 at the same time. In this embodiment, the first light sensor 110 is configured to receive the ambient light AL to generate a first electrical signal S1. The processor 130 is electrically connected to the first light sensor 110 and generates the detection result according to the first electrical signal S1. Specifically, in some embodiments, the motion sensing device 100 may be connected to an external network, for example, by a wired or wireless manner, or may be connected to a speaker, a warning device, a display device, or other devices to implement according to the detection result. Different applications are not limited to this.
請同時參考圖2以及圖3，在本實施例中，光電模組120包括發光元件122以及第二光感測器124。具體而言，光電模組120還包括透鏡126。發光元件122用以發出光線L，且第二光感測器124配置於發光元件122旁，用以接收環境光AL。另外，發光元件122以及第二光感測器124配置於透鏡126旁。詳細而言，透鏡126具有光出入面126a以及相對於光出入面126a的光出入面126b。發光元件122以及第二光感測器124例如是配置於光出入面126b旁，且光出入面126a位於發光元件122以及第二光感測器124的上方。另外，請同時參考圖1A以及圖2，殼體102例如是具有開口O，且開口O暴露出光電模組120的透鏡126的光出入面126a。光出入面126b可例如是配合發光元件122以及第二光感測器124的外形而呈現凹陷，以形成可容置至少一部分的發光元件122以及第二光感測器124的容置空間，以避免透鏡126與發光元件122以及第二光感測器124發生干涉。然而，在一些實施例中，光出入面126b亦可以設計為平面或近似於平面的曲面，而透鏡126、發光元件122以及第二光感測器124的位置藉由其他機構件固定，以避免透鏡126與發光元件122以及第二光感測器124發生干涉，本發明並不以此為限。Please refer to FIG. 2 and FIG. 3 at the same time. In this embodiment, the photoelectric module 120 includes a light emitting element 122 and a second light sensor 124. Specifically, the photoelectric module 120 further includes a lens 126. The light emitting element 122 is configured to emit light L, and the second light sensor 124 is disposed beside the light emitting element 122 to receive ambient light AL. The light emitting element 122 and the second light sensor 124 are disposed beside the lens 126. In detail, the lens 126 has a light exit / entrance surface 126a and a light exit / entrance surface 126b with respect to the light exit / entrance surface 126a. The light emitting element 122 and the second light sensor 124 are, for example, disposed beside the light entrance / exit surface 126 b, and the light entrance / exit surface 126 a is located above the light emitting element 122 and the second light sensor 124. In addition, please refer to FIG. 1A and FIG. 2 at the same time. For example, the housing 102 has an opening O, and the opening O exposes the light entrance / exit surface 126 a of the lens 126 of the photovoltaic module 120. The light entrance / exit surface 126b may, for example, present a recess in accordance with the shapes of the light emitting element 122 and the second light sensor 124 to form an accommodating space capable of accommodating at least a portion of the light emitting element 122 and the second light sensor 124. The lens 126 is prevented from interfering with the light emitting element 122 and the second light sensor 124. However, in some embodiments, the light entrance / exit surface 126b can also be designed as a flat surface or a nearly flat curved surface, and the positions of the lens 126, the light emitting element 122, and the second light sensor 124 are fixed by other mechanism parts to avoid The lens 126 interferes with the light emitting element 122 and the second light sensor 124. The present invention is not limited thereto.
具體而言，發光元件122所發出的光線L經由光出入面126b進入透鏡126，且光線L通過透鏡126後經由光出入面126a離開透鏡126。另外，環境光AL經由光出入面126a進入透鏡126，且環境光AL通過透鏡126後經由光出入面126b離開透鏡126，並傳遞至第二光感測器124。也就是說，發光元件122與第二光感測器124共用相同的透鏡126。在本實施例中，光線L例如是可見光，其自發光元件122發出後藉由透鏡126傳送至觀察者。另外，通過透鏡126的環境光AL則藉由透鏡126傳遞至第二光感測器124。具體而言，透鏡126的材料為可透光的材料，其可包括但不限於透明塑膠（如聚碳酸脂（Polycarbonate, PC）或聚酸甲酯（Polymethylmethacrylate, PMMA）等）、玻璃或水晶材料等。在本實施例中，透鏡126更包括連接光出入面126a的側面126c，且側面126c環繞光出入面126a。側面126c例如是位於光出入面126a以及光出入面126b之間，且側面126c連接光出入面126a以及光出入面126b。當光線L通過透鏡126的過程中，至少一部分的光線L會傳遞至側面126c並發生反射。具體而言，本實施例的透鏡126的側面126c例如是經由拋光處理，使得傳遞至側面126b的光線L會有較大的比例發生反射，且光線L較大的比例可以來回反射於透鏡126之中並傳遞至光出入面126a。因此，自光出入面126a離開透鏡126的光線L具有較高的指向性。Specifically, the light L emitted from the light emitting element 122 enters the lens 126 through the light entrance / exit surface 126b, and the light L passes through the lens 126 and leaves the lens 126 via the light exit / entrance surface 126a. In addition, the ambient light AL enters the lens 126 through the light entrance / exit surface 126a, and the ambient light AL passes through the lens 126 and leaves the lens 126 via the light exit / entrance surface 126b, and is transmitted to the second light sensor 124. That is, the light emitting element 122 and the second light sensor 124 share the same lens 126. In this embodiment, the light L is, for example, visible light, which is transmitted from the light emitting element 122 to the observer through the lens 126. In addition, the ambient light AL passing through the lens 126 is transmitted to the second light sensor 124 through the lens 126. Specifically, the material of the lens 126 is a light-transmissive material, which may include, but is not limited to, transparent plastic (such as Polycarbonate (PC) or Polymethylmethacrylate (PMMA), etc.), glass, or crystal material Wait. In this embodiment, the lens 126 further includes a side surface 126c connected to the light input / output surface 126a, and the side surface 126c surrounds the light input / output surface 126a. The side surface 126c is, for example, located between the light exit / enter surface 126a and the light exit / enter surface 126b, and the side surface 126c connects the light exit / enter surface 126a and the light exit / enter surface 126b. When the light L passes through the lens 126, at least a part of the light L is transmitted to the side surface 126c and reflected. Specifically, the side surface 126c of the lens 126 in this embodiment is, for example, subjected to a polishing process, so that a larger proportion of the light L transmitted to the side surface 126b is reflected, and a larger proportion of the light L can be reflected back and forth to the lens 126. It is transmitted to the light entrance / exit surface 126a. Therefore, the light ray L leaving the lens 126 from the light entrance / exit surface 126a has high directivity.
在一些實施例中，側面126b可以設置光反射材料，例如是鍍上光反射膜，且光反射膜的材料可例如是鋁。如此一來，傳遞至側面126c的光線L絕大部分都會發生反射，使得在這些實施例中，自光出入面126a離開透鏡126的光線L具有更高的指向性。此外，在又一些實施例中，光電模組120也可以不設置透鏡126。在這些實施例中，殼體102的開口O直接暴露出發光元件122以及第二光感測器124。發光元件122發出的光線L通過開口O後離開光電模組120，且環境光AL通過開口O後被傳遞至第二光感測器124，本發明不以此為限。In some embodiments, the side surface 126b may be provided with a light reflecting material, for example, a light reflecting film is plated, and the material of the light reflecting film may be, for example, aluminum. In this way, most of the light L transmitted to the side surface 126c will be reflected, so that in these embodiments, the light L leaving the lens 126 from the light entrance / exit surface 126a has higher directivity. In addition, in some embodiments, the photoelectric module 120 may not be provided with the lens 126. In these embodiments, the opening O of the housing 102 directly exposes the light-emitting element 122 and the second light sensor 124. The light L emitted from the light-emitting element 122 leaves the photoelectric module 120 after passing through the opening O, and the ambient light AL is transmitted to the second light sensor 124 after passing through the opening O. The present invention is not limited thereto.
另外，請參考圖1A、圖1B以及圖2，詳細而言，在本實施例中，運動感測裝置100例如是處於由相互垂直的第一軸X、第二軸Y以及第三軸Z所建構的空間中，其中第二光感測器124與發光元件122例如是位於第一軸X與第二軸Y所構成的平面上。In addition, please refer to FIG. 1A, FIG. 1B and FIG. 2. In detail, in this embodiment, the motion sensing device 100 is, for example, located by a first axis X, a second axis Y, and a third axis Z that are perpendicular to each other. In the constructed space, the second light sensor 124 and the light emitting element 122 are located on a plane formed by the first axis X and the second axis Y, for example.
請參考圖2以及圖3，在本實施例中，處理器130電性連接發光元件122，且處理器130用以根據上述偵測結果提供驅動訊號Sd至發光元件122，以驅動發光元件122發出光線L。詳細而言，外界得以透過光線L而知曉運動感測裝置100的感測或運作的狀態。具體而言，發光元件122的數量大於二，且這些發光元件122包括不同顏色的發光二極體（Light-emitting diode, LED）發光元件。舉例而言，這些發光元件122包括發光元件122a、發光元件122b以及發光元件122c。發光元件122a包括用以發出綠色的光線La的綠色發光二極體，發光元件122b包括用以發出紅色的光線Lb的紅色發光二極體，發光元件122c包括用以發出橙色的光線Lc的橙色發光二極體。詳細而言，綠色的光線La可例如是用以示意運動感測裝置100處於通電或可運作的狀態，紅色的光線Lb可例如是用以示意異常或警戒的狀態，而橙色的光線Lc可例如是用以示意偵測到物體的移動。在本實施例中，可以透過透鏡126的曲面設計，以使傳遞至透鏡126的光線發生適當的折射及/或反射，進而使得各個發光元件122以及環境光AL的光路徑符合需求。另外，運動感測裝置100亦可以包括其他數量以及其他發光顏色的發光元件122，本發明並不以此為限。Please refer to FIG. 2 and FIG. 3. In this embodiment, the processor 130 is electrically connected to the light-emitting element 122, and the processor 130 is configured to provide a driving signal Sd to the light-emitting element 122 according to the detection result to drive the light-emitting element 122 to emit Light L. In detail, the outside can know the state of sensing or operation of the motion sensing device 100 through the light L. Specifically, the number of light-emitting elements 122 is greater than two, and these light-emitting elements 122 include light-emitting diode (LED) light-emitting elements of different colors. For example, these light-emitting elements 122 include a light-emitting element 122a, a light-emitting element 122b, and a light-emitting element 122c. The light emitting element 122a includes a green light emitting diode to emit green light La, the light emitting element 122b includes a red light emitting diode to emit red light Lb, and the light emitting element 122c includes an orange light emitting to emit orange light Lc Diode. In detail, the green light La may be used to indicate that the motion sensing device 100 is powered on or operable, the red light Lb may be used to indicate an abnormal or alert state, and the orange light Lc may be used, for example, It is used to signal the movement of an object. In this embodiment, the curved surface design of the lens 126 can be used to appropriately refract and / or reflect the light transmitted to the lens 126, so that the light paths of the light emitting elements 122 and the ambient light AL can meet requirements. In addition, the motion sensing device 100 may also include light emitting elements 122 of other numbers and other light emitting colors, which is not limited in the present invention.
在本實施例中，處理器130電性連接第二光感測器124。處理器130用以驅動第二光感測器124，使第二光感測器124接收環境光AL並產生第二電訊號S2。另外，處理器130根據第二電訊號S2調整偵測結果。詳細而言，處理器130可以再根據調整後的偵測結果提供驅動訊號Sd至發光元件122，以驅動發光元件122發出光線L。因此，第一光感測器110以及第二光感測器124可用以共同偵測環境光AL。第二光感測器124例如是可接收可見光的光感測器，且第二光感測器124可以補償或校正第一光感測器110對環境光AL的上述偵測結果，以使運動感測裝置100對物體移動的偵測結果更加精準。另外，將可藉由環境溫度的變化偵測物體的移動的第一光感測器110搭配可偵測環境可見光的強度的第二光感測器124，運動感測裝置100可作出更符合使用需求的處置。舉例而言，當晚上時間偵測到人員進出，處理器130可驅動照明或警示。當白天時間偵測到人員進出，則處理器130可不必驅動照明或警示。In this embodiment, the processor 130 is electrically connected to the second light sensor 124. The processor 130 is configured to drive the second light sensor 124 so that the second light sensor 124 receives the ambient light AL and generates a second electrical signal S2. In addition, the processor 130 adjusts the detection result according to the second electrical signal S2. In detail, the processor 130 may further provide a driving signal Sd to the light emitting element 122 according to the adjusted detection result to drive the light emitting element 122 to emit light L. Therefore, the first light sensor 110 and the second light sensor 124 can be used to jointly detect the ambient light AL. The second light sensor 124 is, for example, a light sensor that can receive visible light, and the second light sensor 124 can compensate or correct the above-mentioned detection result of the ambient light AL by the first light sensor 110 to make the motion The detection result of the sensing device 100 on the movement of the object is more accurate. In addition, by combining a first light sensor 110 that can detect the movement of an object through a change in ambient temperature, and a second light sensor 124 that can detect the intensity of visible light in the environment, the motion sensing device 100 can make more consistent use Disposition of demand. For example, when a person is detected to come in and out at night, the processor 130 may drive a light or alert. When a person enters or exits during the day time, the processor 130 may not need to drive lighting or warning.
具體而言，處理器130可例如是具備運算能力的硬體（例如晶片組、處理器等）。舉例而言，處理器130可以是中央處理單元（Central Processing Unit, CPU），或是其他可程式化之微處理器（Microprocessor）、數位訊號處理器（Digital Signal Processor，DSP）、可程式化控制器、特殊應用積體電路（Application Specific Integrated Circuits, ASIC）、可程式化邏輯裝置（Programmable Logic Device, PLD）或其他類似裝置，本發明並不以此為限。Specifically, the processor 130 may be, for example, hardware (for example, a chipset, a processor, and the like) having computing capabilities. For example, the processor 130 may be a central processing unit (CPU), or other programmable microprocessor (Microprocessor), digital signal processor (DSP), and programmable control Devices, application specific integrated circuits (ASICs), programmable logic devices (programmable logic devices, PLDs) or other similar devices, the invention is not limited thereto.
圖4繪示圖1A實施例的處理器在時序上驅動發光元件122以及第二光感測器124的示意圖。請參考圖4以及圖2，在本實施例中，處理器130驅動發光元件122，使發光元件122於多個發光時段T1發出光線L，並於多個不發光時段T2不發光。另外，這些發光時段T1以及這些不發光時段T2例如是隨著時序交替排列。詳細而言，這些不發光時段T2包括至少一採樣時段Ts，且處理器130於此至少一採樣時段Ts驅動第二光感測器124接收環境光AL。在本實施例中，採樣時段Ts的數量例如是多個，且各不發光時段T2包括一個採樣時段Ts。然而，在一些實施例中，採樣時段Ts的數量亦可以不配合不發光時段T2的數量，或者採樣時段Ts的數量可以為一個。在又一些實施例中，有些不發光時段T2可以不包括採樣時段Ts，或者在一個不發光時段T2中可以包括多個採樣時段Ts，本發明並不以此為限。FIG. 4 is a schematic diagram illustrating that the processor in the embodiment of FIG. 1A drives the light emitting element 122 and the second light sensor 124 in timing. Please refer to FIG. 4 and FIG. 2. In this embodiment, the processor 130 drives the light-emitting element 122 so that the light-emitting element 122 emits light L during a plurality of light-emitting periods T1 and does not emit light during a plurality of non-light-emitting periods T2. In addition, the light emitting periods T1 and the non-light emitting periods T2 are alternately arranged in accordance with the timing, for example. In detail, the non-light emitting periods T2 include at least one sampling period Ts, and the processor 130 drives the second light sensor 124 to receive the ambient light AL during the at least one sampling period Ts. In this embodiment, the number of sampling periods Ts is, for example, multiple, and each non-emission period T2 includes one sampling period Ts. However, in some embodiments, the number of sampling periods Ts may not match the number of non-emission periods T2, or the number of sampling periods Ts may be one. In still other embodiments, some non-emission periods T2 may not include the sampling period Ts, or one non-emission period T2 may include multiple sampling periods Ts, which is not limited in the present invention.
在本實施例中，這些發光時段T1與此至少一採樣時段Ts在時序上不重疊（請參考圖4在時間軸上的這些發光時段T1以及多個採樣時段Ts）。也就是說，當發光元件122發出光線L時，第二光感測器124不接收環境光AL。具體而言，各發光時段T1可以例如是落在0.5秒至1秒的範圍內，且各不發光時段T2例如是落在10亳秒至12亳秒的範圍內，例如是10毫秒。在本實施例中，由於人類視覺暫留（Persistence of vision）的時間約落在60毫秒至100亳秒的範圍內，其明顯超過一個不發光時段T2的時間。因此，當這些發光時段T1以及這些不發光時段T2隨著時序交替進行時，觀察者不會察覺不發光時段T2。相對地，觀察者會感覺到這些發光元件122是持續地發出光線L，且光線L並未發生閃爍。然而，在其他實施例中，各發光時段T1以及各不發光時段T2亦可以為其他的時間範圍，本發明並不以此為限。舉例而言，各發光時段T1可以任意設定為其他時間範圍，而各不發光時段T2也可以設計為相同或大於人眼的視覺暫留時間，使得觀看者觀看到呈現閃爍的光線L，本發明並不以此為限。另外，還可以依據實際的發光需求，而於一個發光時段T1中，驅動這些發光元件122發出的光線L為持續光（不閃爍的光）或閃爍光，本發明亦不以此為限。In this embodiment, the light emitting periods T1 and the at least one sampling period Ts do not overlap in time (please refer to the light emitting periods T1 and multiple sampling periods Ts on the time axis in FIG. 4). That is, when the light emitting element 122 emits light L, the second light sensor 124 does not receive the ambient light AL. Specifically, each light-emitting period T1 may fall within a range of 0.5 seconds to 1 second, and each non-light-emitting period T2 may fall within a range of 10 to 12 seconds, such as 10 milliseconds. In this embodiment, since the duration of the human vision (Persistence of Vision) falls in the range of about 60 milliseconds to 100 亳 seconds, it obviously exceeds the time of a non-light emitting period T2. Therefore, when these light-emitting periods T1 and these non-light-emitting periods T2 alternate with time sequence, the observer will not perceive the non-light-emitting period T2. In contrast, the observer will feel that the light emitting elements 122 emit light L continuously, and the light L does not flicker. However, in other embodiments, each light-emitting period T1 and each non-light-emitting period T2 may be other time ranges, and the present invention is not limited thereto. For example, each light-emitting period T1 can be arbitrarily set to other time ranges, and each non-light-emitting period T2 can also be designed to be the same or longer than the visual retention time of the human eye, so that the viewer sees the flickering light L. The present invention It is not limited to this. In addition, according to actual lighting requirements, during a lighting period T1, the light L emitted from the driving of the light-emitting elements 122 is continuous light (non-flickering light) or flickering light, and the present invention is not limited thereto.
在本實施例中，各不發光時段T2包括一個採樣時段Ts，各採樣時段Ts不會超出一個不發光時段T2，因此這些採樣時段Ts不會跟這些發光時段T1在時序上重疊，使得當這些發光元件122發出光線L的同時，第二光感測器124不會接收環境光AL。In this embodiment, each non-emission period T2 includes a sampling period Ts, and each sampling period Ts does not exceed one non-emission period T2. Therefore, these sampling periods Ts do not overlap with these light-emitting periods T1 in time, so that when these While the light emitting element 122 emits light L, the second light sensor 124 does not receive the ambient light AL.
在本實施例中，透鏡126中可以摻雜適量的白色散光劑，以使得出射於透鏡126的光線L的發光均勻度符合實際需求。另外，第二光感測器124在線性響應（linear response）上關於感光的動態範圍（dynamic range）落在0.01勒克斯（lux）至157千勒克斯（klux）的範圍內。因此，即使是因上述光線L的發光均勻度的調整而使得透鏡126的透光度下降，由於第二光感測器124的上述關於感光的動態範圍極廣。在適當的軟硬體調整下，第二光感測器124依然可以接收並感測環境光AL，使得運動感測裝置100的發光需求以及光感測需求皆可以滿足。In this embodiment, an appropriate amount of a white light-scattering agent may be doped in the lens 126 so that the light emission uniformity of the light L emitted from the lens 126 meets actual requirements. In addition, the dynamic range of the second light sensor 124 with respect to light sensitivity in a linear response falls within a range of 0.01 lux to 157 kilolux. Therefore, even if the light transmittance of the lens 126 is reduced due to the adjustment of the uniformity of the light emission of the light L, the dynamic range of the photosensitivity of the second light sensor 124 is extremely wide. With proper hardware and software adjustments, the second light sensor 124 can still receive and sense the ambient light AL, so that the light emitting requirements and light sensing requirements of the motion sensing device 100 can be met.
具體而言，在本實施例中，運動感測裝置100包括光電模組120，且處理器130用以根據偵測結果驅動發光元件122發出光線L，且用以驅動光感測器（第二光感測器124）接收環境光AL並產生相應的電訊號（第二電訊號S2），並根據此電訊號調整偵測結果。另外，當發光元件122發出光線L時，此光感測器不接收環境光。因此，發光元件122以及光感測器可以藉由分時驅動以避免光學上的干擾。當切換發光元件122發光以及不發光（也就是關掉發光元件122）的時間夠快，且設定各個不發光時段T2小於人類視覺暫留的時間時，觀察者並不會察覺發光元件122有被關掉。在本實施例中，發光元件122以及光感測器可以設計成共用同一個透鏡126以進行光線L的傳遞以及環境光AL的傳遞，使得本實施例的運動感測裝置100不必分別為了傳遞這些發光元件122發出的這些光線L以及傳遞環境光AL而設置多個透鏡。藉此，透鏡的使用得以減少，且運動感測裝置100可以具有較小的體積。此外，設置於光電模組120的印刷電路板（Printed circuit board, PCB）的面積也可以設計得較小，使得運動感測裝置100的的組裝構件可較為簡化，且其材料成本以及組裝成本較低。另外，由於透鏡的使用較少，運動感測裝置100的外殼（例如外殼102或外殼104）配合透鏡所作的挖孔可以減少，因此運動感測裝置100外觀設計上可以較為簡潔。Specifically, in this embodiment, the motion sensing device 100 includes a photoelectric module 120, and the processor 130 is configured to drive the light emitting element 122 to emit light L according to the detection result, and is configured to drive the light sensor (second The light sensor 124) receives the ambient light AL and generates a corresponding electric signal (second electric signal S2), and adjusts the detection result according to the electric signal. In addition, when the light emitting element 122 emits light L, the light sensor does not receive ambient light. Therefore, the light emitting element 122 and the light sensor can be driven by time sharing to avoid optical interference. When the time for switching the light emitting element 122 to emit light and not emitting light (that is, to turn off the light emitting element 122) is fast enough, and each time period T2 for which no light is emitted is set to be shorter than the time for which human vision remains, the observer does not perceive that the light emitting element 122 has been Turn it off. In this embodiment, the light emitting element 122 and the light sensor may be designed to share the same lens 126 for transmitting the light L and the ambient light AL, so that the motion sensing device 100 of this embodiment does not need to transmit these separately. These light rays L emitted from the light emitting element 122 and a plurality of lenses are provided to transmit ambient light AL. Thereby, the use of the lens is reduced, and the motion sensing device 100 can have a smaller volume. In addition, the area of the printed circuit board (PCB) provided on the optoelectronic module 120 can also be designed to be small, so that the assembly components of the motion sensing device 100 can be simplified, and the material cost and assembly cost thereof are relatively small. low. In addition, since the lens is used less, the holes (eg, the housing 102 or the housing 104) of the motion sensing device 100 combined with the lens can be reduced, so the appearance design of the motion sensing device 100 can be relatively simple.
圖5繪示本發明一實施例的運動感測裝置的驅動方法的步驟流程圖。請參考圖5，在本實施例中，所述運動感測裝置的驅動方法至少可以應用於圖1A以及圖1B實施例的運動感測裝置100。所述運動感測裝置的驅動方法如下步驟。在步驟S510中，驅動第一光感測器以接收環境光並產生第一電訊號，且根據第一電訊號產生偵測結果。在步驟S520中，根據偵測結果驅動至少一發光元件發出至少一光線。另外，在步驟S530中，驅動第二光感測器接收環境光並產生第二電訊號，且根據第二電訊號調整偵測結果，其中當至少一發光元件發出至少一光線時，第二光感測器不接收環境光。具體而言，本發明之實施例的運動感測裝置的驅動方法可以由圖1A至圖4之實施例的敘述中獲致足夠的教示、建議與實施說明，因此不再贅述。FIG. 5 is a flowchart of steps in a method for driving a motion sensing device according to an embodiment of the invention. Please refer to FIG. 5. In this embodiment, the driving method of the motion sensing device can be applied to at least the motion sensing device 100 in the embodiment of FIGS. 1A and 1B. The driving method of the motion sensing device is as follows. In step S510, the first light sensor is driven to receive ambient light and generate a first electrical signal, and a detection result is generated according to the first electrical signal. In step S520, at least one light-emitting element is driven to emit at least one light according to the detection result. In addition, in step S530, the second light sensor is driven to receive the ambient light and generate a second electric signal, and the detection result is adjusted according to the second electric signal. When the at least one light emitting element emits at least one light, the second light The sensor does not receive ambient light. Specifically, the driving method of the motion sensing device according to the embodiment of the present invention can obtain sufficient teaching, suggestions, and implementation description from the description of the embodiment of FIGS. 1A to 4, and therefore will not be described repeatedly.
綜上所述，本發明實施例的運動感測裝置、光電模組以及運動感測裝置的驅動方法中，處理器用以根據偵測結果驅動發光元件發出光線，且用以驅動光感測器（第二光感測器）接收環境光並產生相應的電訊號（第二電訊號），並根據此電訊號調整偵測結果。另外，當發光元件發出光線時，光感測器不接收環境光。因此，發光元件以及光感測器可以藉由分時驅動以避免光學上的干擾。發光元件以及光感測器可以設計成共用同一個透鏡以進行光線的傳遞，使得運動感測裝置可以減少透鏡的使用而具有較小的體積、較低的材料成本以及較低的組裝成本。另外，運動感測裝置具有簡化的組裝構件而有利於其外觀設計上的簡潔。In summary, in the motion sensing device, the photoelectric module, and the driving method of the motion sensing device according to the embodiments of the present invention, the processor is configured to drive the light emitting element to emit light according to the detection result, and is used to drive the light sensor ( The second light sensor) receives ambient light and generates a corresponding electric signal (second electric signal), and adjusts the detection result according to the electric signal. In addition, when the light emitting element emits light, the light sensor does not receive ambient light. Therefore, the light emitting element and the light sensor can be driven by time sharing to avoid optical interference. The light emitting element and the light sensor can be designed to share the same lens for light transmission, so that the motion sensing device can reduce the use of the lens and have a smaller volume, a lower material cost, and a lower assembly cost. In addition, the motion sensing device has simplified assembly components, which facilitates the simplicity of its appearance design.
雖然本發明已以實施例揭露如上，然其並非用以限定本發明，任何所屬技術領域中具有通常知識者，在不脫離本發明的精神和範圍內，當可作些許的更動與潤飾，故本發明的保護範圍當視後附的申請專利範圍所界定者為準。Although the present invention has been disclosed as above with the examples, it is not intended to limit the present invention. Any person with ordinary knowledge in the technical field can make some modifications and retouching without departing from the spirit and scope of the present invention. The protection scope of the present invention shall be determined by the scope of the attached patent application.
100‧‧‧運動感測裝置
102、104‧‧‧殼體
110‧‧‧第一光感測器
120‧‧‧光電模組
122、122a、122b、122c‧‧‧發光元件
124‧‧‧第二光感測器
126‧‧‧透鏡
126a、126b‧‧‧光出入面
126c‧‧‧側面
130‧‧‧處理器
AL‧‧‧環境光
IFS‧‧‧紅外光感測器
L、La、Lb、Lc‧‧‧光線
O‧‧‧開口
S1、S2‧‧‧電訊號
S510、S520、S530‧‧‧運動感測裝置的驅動方法
Sd‧‧‧驅動訊號
T1‧‧‧發光時段
T2‧‧‧不發光時段
Ts‧‧‧採樣時段
X‧‧‧第一軸
Y‧‧‧第二軸
Z‧‧‧第三軸100‧‧‧ motion sensing device
102, 104‧‧‧ Housing
110‧‧‧The first light sensor
120‧‧‧Photoelectric Module
122, 122a, 122b, 122c‧‧‧Light-emitting elements
124‧‧‧Second light sensor
126‧‧‧Lens
126a, 126b ‧‧‧ Light in and out
126c‧‧‧ side
130‧‧‧ processor
AL‧‧‧Ambient light
IFS‧‧‧Infrared light sensor
L, La, Lb, Lc‧‧‧ Light
O‧‧‧ opening
S1, S2‧‧‧‧Telecom signals
S510, S520, S530‧‧‧Drive method of motion sensing device
Sd‧‧‧Drive signal
T1‧‧‧lighting period
T2‧‧‧No light period
Ts‧‧‧sampling period
X‧‧‧first axis
Y‧‧‧Second axis
Z‧‧‧ Third axis
圖1A繪示本發明一實施例的運動感測裝置的外觀圖。 圖1B繪示圖1A實施例的運動感測裝置的內部結構示意圖。 圖2繪示圖1A實施例的光電模組的結構示意圖。 圖3繪示圖1A實施例的運動感測裝置的部分構件的連接關係的概要示意圖。 圖4繪示圖1A實施例的處理器在時序上驅動至少一發光元件以及第二光感測器的示意圖。 圖5繪示本發明一實施例的運動感測裝置的驅動方法的步驟流程圖。FIG. 1A is an external view of a motion sensing device according to an embodiment of the invention. FIG. 1B is a schematic diagram illustrating an internal structure of the motion sensing device in the embodiment shown in FIG. 1A. FIG. 2 is a schematic structural diagram of the photovoltaic module of the embodiment shown in FIG. 1A. FIG. 3 is a schematic diagram illustrating a connection relationship between some components of the motion sensing device in the embodiment shown in FIG. 1A. FIG. 4 is a schematic diagram illustrating that the processor in the embodiment of FIG. 1A drives at least one light emitting element and a second light sensor in timing. FIG. 5 is a flowchart of steps in a method for driving a motion sensing device according to an embodiment of the invention.
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108240866A (en) | 2018-07-03 |
| CN108260073B (en) | 2021-02-09 |
| CN108240866B (en) | 2020-06-09 |
| TW201824944A (en) | 2018-07-01 |
| TWI655614B (en) | 2019-04-01 |
| CN108242137A (en) | 2018-07-03 |
| TWI638578B (en) | 2018-10-11 |
| TW201824196A (en) | 2018-07-01 |
| CN108242137B (en) | 2020-02-14 |
| CN108260073A (en) | 2018-07-06 |
| TW201824202A (en) | 2018-07-01 |
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