占用传感器与空置传感器

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## <font color="#0000FF">EE102A: OCCUPANCY AND VACANCY SENSORS

<font color="#0000FF">占用传感器与空置传感器

**以下内容由208-朱媛媛翻译**

### <font color="#0000FF">EDUCATION CREDIT（教育学分）

At the end of this course, participants will be able to complete an online exam, with a passing grade of 70+% to qualify for CALCTP (CALCTP), NLCAA (NLCAA) and LEU (NCQLP) credit and 80+% for LU/HSW hours (AIA/CES). Upon a passing grade, you will be able to download a Certificate of Completion for each type of credits. For CALCTP, NLCAA and LC certification maintenance (LEUs), credits are self-reported. For AIA /CES, Lighting Controls Association will report credit earned for this course to AIA CES.

在本课程结束后，学员将能够在线完成考试，成绩达到70%以上才能获得CALCTP (CALCTP), NLCAA (NLCAA)和LEU(NCQLP) 学分。成绩80%以上才能获得LU/HSW 学时 (AIA/CES)。在成绩取得合格后，你将可以下载每类学分的毕业证书。对于CALCTP, NLCAA 和 LC认证维护(LEUs)学分是自己报告。对于AIA /CES,照明控制协会将会向AIA CES报告本课程获得学分。

### <font color="#0000FF">NO ENDORSEMENT BY ACCREDITING ORGANIZATIONS（没有得到认证组织的认可）

This course is registered with CALCTP, NCQLP and AIA CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by these organizations of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product.

本课程已在CALCTP、NCQLP和AIA CES注册为继续专业教育课程。因此，它不包括可能被视为或解释为这些组织对任何建筑材料或任何材料或产品的处理、使用、分发或交易的方法或方式的批准或认可的内容。

### <font color="#0000FF">COPYRIGHT（版权声明）

This presentation is protected by US and International copyright laws. ; Reproduction, distribution, display and use of the presentation without written permission of the Lighting Controls Association is prohibited.

本演示文稿受美国和国际版权法保护，未经照明控制协会书面许可，禁止复制、分发、展示和使用本演示文稿。

### <font color="#0000FF">DISCLAIMER（免责声明）

The information contained in this course has been obtained from sources believed to be reliable. Damages arising from errors, omissions or damages as a result of the use or misuse of the data or information contained in this course are not the responsibility of the Lighting Controls Association, National Electrical Manufacturers Association, ZING Communications, Inc. or their employees or members. All information contained in this course is published for professionals seeking information about the subjects contained therein. It is not the intent of this course provide professional services such as design, engineering or consulting. If these services are sought, they should be rendered by properly trained, registered, regulated and insured professionals.

本课程中包含的信息是从被认为可靠的来源获得的。由于使用或误用本课程中包含的数据或信息而导致的错误、遗漏或损害，照明控制协会、美国国家电气制造商协会、ZING通信公司或其员工或会员不承担任何责任。本课程中包含的所有信息是为寻求其中所含主题信息的专业人士而发布的。本课程的目的不是提供专业服务，如设计、工程或咨询。如果需要这些服务，则应由经过适当培训、注册、监管和投保的专业人士提供。

### <font color="#0000FF">INTRODUCTION（导言）

Occupancy and vacancy sensors are devices that detect when a space is unoccupied and accordingly automatically turn OFF (or dim) the lights, thereby saving energy. The device may also turn the lights ON automatically upon detecting the presence of people, providing convenience and a potential security aid. According to the Lawrence Berkeley National Laboratory, occupancy-based strategies can produce average lighting energy savings of 24%.

占用和空置传感器是检测空间无人时，相应地自动关闭(或调暗)灯光，从而节约能源的装置。该装置还可以在检测到有人时自动开灯，提供便利和潜在的安全辅助。根据劳伦斯伯克利国家实验室的数据，基于占用的策略可以产生平均24%的照明节能效果。

Due to their relative simplicity and high energy-savings potential, coupled with energy code mandates, these sensors are a staple in new construction. They are also a common control feature in retrofit projects.

由于其相对简单和高节能潜力，再加上能源法规的要求，这些传感器是新建筑中的主流。它们也是改造项目中常见的控制功能。

### <font color="#0000FF">LEARNING OBJECTIVES（学习目标）

By the end of this course, you will be able to:
Select an appropriate sensor technology based on a given application’s characteristics.
Select appropriate features for the sensor to optimize performance in the given application.
Apply sensors to spaces based on their characteristics.

在本课程结束之后，你将能够：
根据所给应用特点，选择合适的传感器技术。
为传感器选择合适的功能，以优化给定应用中的性能。
根据空间的特点，将传感器应用于空间。

### <font color="#0000FF">TECHNOLOGY（技术）

###

### <font color="#0000FF">INPUTS（输入量）

Occupancy sensors may be specified as manual-, partial- or full-ON devices.

占用传感器可指定为手动、部分或全开设备。

The majority of commercial building energy codes require manual- or partial-ON operation. Manual-ON sensors (also called vacancy sensors) require the occupant to turn the lights ON using a manual switch, which may be integral to the sensor (shown here is an example). Partial-ON sensors activate the lights to a designated level such as 50%, and the occupant then uses a switch to bring the lights to full output. Full-ON sensors activate the lights at full output.

大多数商业建筑的能源法规都要求手动或部分开灯操作。手动开灯传感器（也称为空置传感器）要求住户使用手动开关开灯，手动开关可能是传感器的组成部分（这里是一个例子）。部分开灯传感器将灯激活到指定的水平，如50%，然后住户使用开关将灯开到全功率。全开式传感器则以全开状态激活灯光。

Manual- and partial-ON sensors tend to save more energy because the occupant may want to leave the lights OFF or at a lower level. Full-ON sensors provide convenience, which may be regarded as an amenity.

手动和部分开启传感器往往能节省更多的能源，因为居住者可能想把灯关掉或放在较低的位置。全开式传感器提供了方便，可将其视为一种便利。

### <font color="#0000FF">OUTPUTS（输出量）

Occupancy and vacancy sensors may turn the lights OFF or reduce the lighting via stepped switching or dimming. While ON/OFF is more common, light reduction is well suited to applications where the lights must stay ON but are frequently unoccupied, such as this stairwell, or where the lamp does not start quickly, as in the case of HID lamps.

占用和空置传感器可以通过阶梯式开关或调光将灯关闭或减少照明。虽然开/关灯比较常见，但减光很适合那些必须保持开灯但经常无人居住的应用，比如这个楼梯间，或者像HID灯那样，灯不能快速启动。

### <font color="#0000FF">COVERAGE AREA AND PATTERN（覆盖区域和模式）

The sensor’s sensitivity defines at what distance it can detect major (i.e., body) and minor (i.e., hand) motion. The resulting coverage is expressed as coverage area and pattern. Coverage area defines the boundaries within which the sensor can detect motion. Coverage shape is the resulting shape of these boundaries, which may be a circle, rectangle, ellipse, tear drop, etc.

传感器的灵敏度定义了它能检测到主要（即身体）和次要（即手）运动的距离。由此产生的覆盖范围表示为覆盖区域和模式。覆盖区域定义了传感器可以检测运动的边界。覆盖形状是这些边界的结果形状，可以是圆形、矩形、椭圆、泪滴等。

NEMA WD-7 offers testing and reporting methods for coverage areas and patterns, which compliant manufacturers report in their literature. This allows meaningful product comparison. The value is typically a maximum, which may be adjusted based on sensitivity setting, room dimensions, mounting height, presence of obstacles and other factors.

NEMA WD-7提供了覆盖区域和模式的测试和报告方法，符合要求的制造商在其文献中报告了这些方法。这样可以进行有意义的产品比较。该值通常是一个最大值，可根据灵敏度设置、房间尺寸、安装高度、是否有障碍物和其他因素进行调整。

Shown here is a coverage pattern for a wall switch ultrasonic sensor

这里展示的是墙壁开关超声波传感器的覆盖模式。

### <font color="#0000FF">SENSING TECHNOLOGY（感应技术）

The most common single-technology methods are passive infrared (PIR) and ultrasonic (US). Dual-technology (DT) sensors combine PIR with ultrasonic or acoustic sensing. Other methods include microwave sensors, which emit low-power microwaves and detect changes in occupancy, and camera-based sensors, which take multiple images of the coverage area per second. Researchers are now exploring even more ways to detect occupants, such as light-differential sensing.

最常见的单技术方法是被动红外（PIR）和超声波（US）。双技术(DT)传感器结合了PIR和超声波或声学传感。其他方法还包括发射低功率微波的微波传感器和基于摄像头的传感器，前者可发射低功率微波并检测占用率的变化，后者可每秒拍摄覆盖区域的多个图像。研究人员现在正在探索更多的检测居住者的方法，如光差传感。

PIR sensors react to the movement of heat emitted by people in motion. They detect motion within a coverage area that requires a line of sight; they cannot “see” occupants behind obstacles or glass.

PIR传感器对运动中的人所发出的热量运动作出反应。它们在需要视线的覆盖区域内探测运动；它们不能 "看到 "障碍物或玻璃后面的人。

The detection mechanism is a multi-faceted lens that defines its coverage area as a series of discrete fan-shaped zones (see below example for a wall switch-mounted sensor, recommended for a maximum 15-ft. x 12-ft. area). The lens also determines the size of motion it is best suited to detect.

检测机制是一个多面透镜，它将其覆盖区域定义为一系列离散的扇形区域（见下面的墙壁开关安装传感器的例子，建议使用最大15英尺x12英尺的区域）。镜头还决定了它最适合检测的运动大小。

The sensor detects motion when an occupant crosses these zones, making it more sensitive to motion occurring lateral to the sensor. The gaps between the zones widen with distance, which results in sensitivity decreasing the farther the occupant is from the sensor. Most PIR sensors are sensitive to full body movement up to about 40 ft. but are sensitive to hand movement, which is more discrete, up to about 15 ft.

当居住者穿过这些区域时，传感器就会检测到运动，从而使其对发生在传感器侧面的运动更加敏感。区域之间的差距会随着距离的增加而扩大，这就导致了居住者离传感器越远，灵敏度就越低。大多数PIR传感器对全身运动的敏感度最高可达40英尺，但对手部运动的敏感度最高可达15英尺。

### <font color="#0000FF">ULTRASONIC（超声波）

US sensors emit an ultrasonic high-frequency signal throughout a space, monitor the frequency of the reflected signal, and interpret change in frequency as motion. Alternately, they can set up a standing wave and look for changes in both amplitude and frequency due to motion. The frequency of the waves typically is well above (32-40 kHz) what the normal ear can detect (20 kHz) to avoid incompatibilities with devices such as hearing aids. These sensors do not require a direct line of sight (coverage is volumetric), making them ideal for applications such as public restrooms with multiple stalls.

美国传感器在整个空间内发射超声波高频信号，监测反射信号的频率，并将频率变化解释为运动。或者，他们可以设置一个驻波，并寻找由于运动引起的振幅和频率的变化。波的频率通常远高于正常耳朵能检测到的频率（32-40 kHz），以避免与助听器等设备不兼容。这些传感器不需要直接的视线（覆盖范围是容积式的），使其成为有多个档位的公共厕所等应用的理想选择。

Able to detect minor motion at a distance up to 25 ft., these sensors are highly sensitive. Shown here are coverage patterns for four US sensors suitable for different applications, including 180- to 360-degree coverage, and including different-sized rooms and a hallway.

这些传感器能够在25英尺的距离内检测到轻微的运动，灵敏度很高。这里展示的是适合不同应用的四种美国传感器的覆盖模式，包括180到360度的覆盖范围，并包括不同大小的房间和走廊。

###

### <font color="#0000FF">DUAL TECHNOLOGY（双重技术）

DT sensors utilize two detection methods to increase reliability in applications where a higher degree of detection is desirable (e.g., occupants are not moving for long periods of time), such as classrooms.

DT传感器利用两种检测方法，在需要更高的检测程度的应用中(例如，居住者长时间不移动)，如教室，提高可靠性。
Most manufacturers offer sensors that combine ultrasonic and PIR technologies. The lights activate only when both technologies detect the presence of people. Only one technology is needed to hold the lights ON.

大多数制造商提供结合超声波和PIR技术的传感器。只有当两种技术都检测到人的存在时，灯才会激活。只需要一种技术就可以保持灯亮。
Another DT sensor combines PIR with acoustic detection, called passive DT because no waves emit into the space. The sensor’s microphone filters out white noise to focus on sharp variations characteristic of local occupant activity. Shown here are coverage patterns for a ceiling-mounted DT sensor (top) and a wall switch-mounted passive DT sensor (bottom).

另一种DT传感器将PIR与声学检测结合起来，由于没有向空间中发射电波，因此称为被动DT。该传感器的麦克风可以过滤掉白噪声，以聚焦于当地居民活动的尖锐变化。这里显示的是天花板安装的DT传感器（顶部）和墙壁开关安装的被动DT传感器（底部）的覆盖模式。

### <font color="#0000FF">MOUNTING PACKAGES（安装包）

Sensors may be configured for ceiling, high wall/corner, wall switch (wallbox), workstation and luminaire mounting.

传感器可配置为天花板、高墙/角落、墙面开关（墙盒）、工作站和灯具安装。

### <font color="#0000FF">SPECIAL FEATURES（特殊功能）

 屏蔽
PIR感应器需要与任务区保持一定的视线。因此他们的视野可以通过标签、遮光板或者百叶窗来调整。例如，一个传感器可以覆盖私人办公室，但不覆盖相邻的走廊，否则移动会导致灯在不应该打开的时候被打开。

### <font color="#0000FF">SPECIAL FEATURES（特殊功能）

一些电源组包含两个独立的继电器，同时或者独立的控制两个电路，实现双路控制或者双层开关。
有些电源组和/或者传感器包含一个小的单独的小型低压开关去控制和连接附加负载，如HVAC。

以下内容由228-吕佳新翻译

### ACCESSORIES(附件)

 传感器灯座
 基座适配器
 电源底座适配器
 保护线盒
 轻型登录器
监测和记录照明和占用情况的设备，用于对现有照明系统进行审计。

### APPLICATION(应用)

Occupancy and vacancy sensors are ideally suited to installation in: smaller, enclosed spaces; larger spaces using zoned/networked or individual luminaire control; spaces that operate on an unpredictable schedule; spaces that are intermittently occupied—that is, left unoccupied for two or more hours per day; and stairwells, corridors and similar spaces where the lighting must remain ON all day but are frequently unoccupied (light reduction).

占用传感器和空置传感器非常适合安装在：较小的封闭空间；使用分区/网络或独立灯具控制的较大空间；按不可预测的时间表运行的空间；间歇性占用的空间--即每天有两个或更多的时间无人居住；以及楼梯间、走廊和类似的空间，这些空间的照明必须全天保持开启，但经常无人居住（减光）。

Ideal applications include offices, classrooms, copy rooms, restrooms, storage areas, conference rooms, warehouse aisles, break rooms, corridors, filing areas and other spaces.

理想的应用包括办公室、教室、复印室、休息室、存储区、会议室、仓库过道、休息室、走廊、档案区和其他空间。

Two examples are shown here, a public restroom (top) with a single sensor and an open office (bottom) with multiple networked sensors. In the restroom, a ceiling DT sensor is placed about 2 ft. out from the stall door to cover the space. In the open office, multiple ceiling US sensors are wired in parallel and networked to cover the entire space as a single load. Only one sensor is required to turn the lights ON and keep them ON. Note a minimum 20% overlap in coverage area is recommended to ensure reliability of detection.

这里展示了两个例子，一个是带有单个传感器的公共洗手间（顶部），另一个是带有多个网络传感器的开放式办公室（底部）。在洗手间，一个天花板DT传感器放置在距离档门约2英尺的地方，以覆盖整个空间。在开放式办公室中，多个天花板US传感器并行布线并联网，以覆盖整个空间作为单一负载。只需要一个传感器来打开灯并保持灯亮。需要注意的是，为了保证检测的可靠性，建议覆盖区域至少有20%的重叠。

### ENERGY CODES(能源代码)

Most commercial building energy codes require lighting be turned OFF or reduced when it is not being used. These codes apply to new construction and renovation projects and, in some states, lamp-plus-ballast retrofits as well. The majority of codes now specifically require sensors in a wide range of spaces. Increasingly, codes mandate use of manual- or partial-ON sensors. The maximum time delay is trending from 30 to 20 minutes. See our Energy Codes course for information that may be applicable to your project.

大多数商业建筑的能源法规都要求在不使用时关闭或减少照明。这些法规适用于新建筑和翻新项目，在一些国家，还适用于灯管加镇流器的改造。现在，大多数法规都明确要求在广泛的空间内安装传感器。越来越多的规范要求使用手动或部分开启的传感器。最大延时的趋势是从30分钟到20分钟。请参阅我们的能源法规课程，了解可能适用于您项目的信息。

### PIR SENSORS(PIR传感器)

PIR occupancy sensors sense the difference in heat between moving people and their background. They can be installed on ceilings or walls, including as a wall switch replacement, and used in both indoor and outdoor applications. They are well suited to:

Smaller, enclosed spaces such as private offices, utility closets and storage rooms; spaces requiring limited coverage such as warehouse aisles and corridors; and relatively confined outdoor spaces such as building perimeter lighting.

PIR占用传感器可感知移动中的人与其背景之间的热量差异。它们可以安装在天花板或墙壁上，包括作为墙壁开关的替代品，并可用于室内和室外应用。它们很适合用于：

较小的封闭空间，如私人办公室、杂物间和储藏室；需要有限覆盖的空间，如仓库过道和走廊；相对封闭的室外空间，如建筑周边照明。

PIR sensors should be located so that they have an unobstructed view of the primary task area. (While line-of-sight sensing can be limiting, it also enables the field of view to be limited at the factory by design or in the field through adjustment.) If full- or partial-ON, they should turn the lights ON immediately when an occupant enters the room.

PIR传感器的位置应使其对主要任务区域具有无遮挡的视野。（虽然视线传感可能是限制性的，但它也可以在工厂通过设计或在现场通过调整来限制视野）。如果是全开或部分开灯，当有住户进入房间时，应立即将灯打开。

These sensors are less sensitive than ultrasonic sensors; sensitivity decreases the farther away the occupant is from the sensor. They are most sensitive to motion lateral to the sensor. The coverage area should be limited so that only the lighting in the designated space is controlled.

Because PIR sensors respond to heat differential, such differential must exist. Additionally, to prevent false-ON switching (although the condition is rare in this case), they should not be mounted within 6-8 ft. of HVAC air diffusers and other heat sources.

这些传感器的灵敏度低于超声波传感器；居住者离传感器越远，灵敏度就越低。它们对传感器侧面的运动最为敏感。覆盖区域应受到限制，以便只控制指定空间内的照明。

由于PIR传感器对热差作出反应，所以这种热差必须存在。此外，为了防止误开开关（虽然这种情况很少见），它们不应该安装在HVAC空气扩散器和其他热源的6-8英尺内。

### US SENSORS(US传感器)

US sensors emit high-frequency sound waves into the space and detect occupancy from changes in the frequency of returning reflections, or they may set up a standing wave and measure both frequency shift and amplitude. They can be installed on ceilings or walls, including as a wall switch replacement, typically in indoor applications. Although they are an active technology (emit energy into the space), properly designed devices will not interfere with local devices such as hearing aids. They are well suited to applications requiring greater sensitivity and reliability, open indoor spaces, and spaces with obstacles. Suitable applications include open offices, private offices, bathrooms, classrooms and conference rooms.

US传感器向空间发射高频声波，从回波反射频率的变化中检测占用情况，也可以设置驻波，同时测量频移和振幅。它们可以安装在天花板或墙壁上，包括作为墙壁开关的替代品，通常在室内应用。虽然它们是一种有源技术（向空间发射能量），但正确设计的设备不会干扰助听器等本地设备。它们非常适合需要更高灵敏度和可靠性的应用、开放的室内空间和有障碍物的空间。适合的应用包括开放式办公室、私人办公室、浴室、教室和会议室。

US sensors do not require a line of sight to the primary task area. They can “see” around corners and obstacles, and have volumetric coverage—that is, they monitor the entire space, not just what is within the field of view. However, the sensor’s field of view cannot be limited after installation.
US的传感器不要求与主要任务区有一线之隔的视线。它们可以 "看到 "周围的角落和障碍物，并且具有体积覆盖率，即它们监测整个空间，而不仅仅是视场内的东西。但是，安装后不能限制传感器的视野。

Ultrasonic sensors should be located so that they lights turn ON as soon as a person enters the space. They are more sensitive than PIR sensors, ideal for applications with minor body motion such as typing in an office or test taking in a classroom. They are more sensitive to people walking directly to and from the sensor.

超声波传感器的位置应该确保只要有人进入空间，它们的灯就会打开。它们比PIR传感器更灵敏，是身体轻微运动的应用的理想选择，如在办公室打字或在教室里考试。它们对直接走到或离开传感器的人更加敏感。

US sensor sensitivity may be decreased due to three factors: distance, partition height and the ability of room surfaces to reflect the ultrasonic emission. They best in spaces with ceilings below 14 ft. Room surfaces such as heavy carpeting and sound-absorbing partitions and ceiling tiles may reduce coverage of the sensor, while hard surfaces will increase sensitivity. Additionally, ceiling-mounted sensor effective range declines proportionally to partition height. In spaces with fabric partitions and high partition heights, direct line of sight may be required for reliable detection. Finally, because these sensors respond to motion, to avoid false-ON switching , they should not be mounted on sources of vibration or within 6-8 ft. or air sources such as open windows and ventilation apertures.

US传感器的灵敏度可能会因为三个因素而降低：距离、隔断高度和房间表面反射超声波发射的能力。它们在天花板低于14英尺的空间中效果最好，房间表面如厚重的地毯和吸音隔板以及天花板瓷砖可能会减少传感器的覆盖范围，而坚硬的表面会增加灵敏度。此外，安装在天花板上的传感器有效范围与隔断高度成反比。在具有织物隔板和高隔板的空间中，可能需要直接的视线来进行可靠的检测。最后，由于这些传感器会对运动作出反应，为了避免误开，它们不应该安装在振动源或6-8英尺范围内，也不应该安装在空气源上，如打开的窗户和通风孔。

### DT SENSORS(DT传感器)

For spaces where line of sight to occupants is blocked by obstructions or where occupants are not moving for long periods of time, DT sensors can be effective. These sensors can be more effective at preventing false-OFF switching than PIR sensors, and preventing false-ON switching than US sensors.

对于住户的视线被障碍物阻挡或住户长时间不移动的空间，DT传感器是有效的。与PIR传感器相比，这些传感器可以更有效地防止误关。

### PLACEMENT(位置)

Improper mounting location is a leading cause of application problems with occupancy sensors, making sensor location a critical design decision. Sensors should be located so that they have the least possibility of nuisance switching and activate the lights as soon as a person enters the space. This typically involves sensor placement above or close to the main areas of activity in the space.

不正确的安装位置是导致占用传感器应用问题的主要原因，因此传感器的位置是一个关键的设计决定。传感器的位置应使其具有最小的滋扰开关的可能性，并在人进入空间时立即激活灯光。这通常涉及到将传感器放置在空间内主要活动区域的上方或附近。

Another aspect of location is orientation. For example, the receiving side of US sensors should be positioned toward the area of greatest traffic in a space. Manufacturers can provide application support including project layout and sensor location services.

位置的另一个方面是方位。例如，US传感器的接收侧应朝向空间中人流量最大的区域定位。制造商可以提供应用支持，包括项目布局和传感器定位服务。

### TIME DELAY（时间延迟）

Time delay, which determines the amount of time before the lights turn OFF after detection of vacancy, is a significant adjustable sensor setting. Prevailing energy codes limit the time delay to 30 minutes, thought the latest energy codes are shortening this to 20 minutes.

Fluorescent lamps experience wear and tear on startup, so as the operating cycle decreases (hours per start), energy savings increase but lamp life decreases, particularly for instant-start systems. This may be mitigated by using long-life lamps and programmed rapid-start ballasts.

延时，决定了在检测到空位后关灯前的时间，是一个重要的可调节传感器设置。现行的能源法规将延时时间限制为30分钟，而最新的能源法规则将延时时间缩短为20分钟。

In contrast, frequency of starting imposes a negligible effect on LED product life. This theoretically allows time delays as short as 1-5 minutes, which can increase energy savings, though more sensors may be needed to avoid the potential for false OFF. Additionally, intelligent lighting control systems allow programming of time delay so that it changes based on time of day. For example, during the day, time delay might be 20 minutes. Afterhours, 5.

相比之下，启动频率对LED产品寿命的影响微乎其微。理论上，这允许时间延迟短至1-5分钟，这可以提高节能效果，尽管可能需要更多的传感器来避免误关的可能性。此外，智能照明控制系统允许对时间延迟进行编程，使其根据一天中的时间变化。例如，白天，时间延迟可能是20分钟。下班时间，5分钟。

### YOU’RE FINISHED（你完成了）

This concludes The American Institute of Architects Continuing Education Systems Course EE102: Occupancy and Vacancy Sensors.

Please take a moment to provide feedback about your experience with this course.

You may also take the Comprehension Test to test your learning and to qualify for CALCTP (CALCTP), LEU (NCQLP LC) and LU/HSW (AIA CES) credit. A 70+% passing grade is required for LEU and CALCTP credit and 80+% for AIA CES credit.

Upon passing the test, you may download a Certificate of Completion on the Courses page. If you are an AIA member, please email your course completion certificate to LCA with your AIA number.

美国建筑师协会继续教育系统课程EE102：占用和空置传感器到此结束。

请花点时间提供您对本课程的体验反馈。

您也可以参加理解测试来检验您的学习情况，并有资格获得CALCTP（CALCTP）、LEU（NCQLP LC）和LU/HSW（AIA CES）学分。LEU和CALCTP学分要求70％以上的合格成绩，AIA CES学分要求80％以上。

通过考试后，您可以在课程页面下载结业证书。如果您是AIA会员，请将您的课程结业证书连同您的AIA编号一起发到LCA。