Electronic device for assisting operation of sensor light

Abstract

Disclosed is an electronic device for improving an occupancy sensing function, wherein the electronic device improves the occupancy sensing function of a sensor or the like without replacing an existing installed sensor or the like, thus making it possible for a light to continuously stay ON with reliability when a person is present underneath the light. In addition, various methods may be considered in order to save the power of the electronic device.

Description

Electronic devices to assist the operation of sensors, etc.

[0001] The present invention relates to an electronic device for improving the occupancy sensing function, and more particularly, to an electronic device for assisting the occupancy sensing function of a sensor light without replacing an already installed sensor light.

[0002] In order to prevent excessive power consumption, sensor lights are installed in stairwells, entrances, parking lots, garages, warehouses, etc. of apartments and buildings. When a moving object such as a person or vehicle enters a certain range around the installation location, the lights turn on for a certain amount of time and turn off in all other situations.

[0003] A conventional sensor light is illustrated in Figure 1. To reduce power consumption, control methods have been developed for existing sensor lights that work in conjunction with human body detection sensors. For example, PIR (Pyroelectric Infrared Ray) sensors, commonly used as occupancy / vacancy sensors, detect the difference between the heat emitted by a moving human body and the background space to determine whether a person is present or absent.

[0004] Referring to Fig. 1, the conventional sensor light (10) using the most widely used PIR detection sensor (11) detects a moving object through the PIR detection sensor (11) and is implemented in a way that the light source turns on according to the detection signal. However, since this PIR detection sensor is based on a method of detecting heat change, it cannot detect presence, that is, whether a human body is located in the vicinity, when the human body moves slowly, has little movement, or is stationary. In addition, there is a problem that a moving object emitting a certain amount of infrared ray is not continuously detected if it does not move from a fixed location after being initially detected. Therefore, in order to turn the light on again after an unwanted turning off, a person must repeatedly take additional actions, such as moving the body greatly or swinging the arms, which is inconvenient.

[0005] Recently, with the advancement of sensor technology, sensors have been developed that improve the above-mentioned problems of PIR detection sensors. However, in order to replace an existing PIR detection sensor, the entire sensor must be replaced due to its structure, so consumers are using the existing sensor due to the high cost burden.

[0006] The present invention has been devised to solve the above-mentioned problems, and its purpose is to provide an electronic device for improving the occupancy sensing function of a sensor light without replacing an existing sensor light, thereby enabling stable continuous lighting when a person is present under the light.

[0007] Another object of the present invention is to provide an electronic device that operates at low power and can assist the presence sensing function of a sensor or the like for a long time using a commercial battery.

[0008] Another object of the present invention is to provide an electronic device that can be easily attached to an existing sensor or the like by means of a fixing means.

[0009] The present invention has been devised to solve the above-mentioned problems, and its purpose is to provide an electronic device for improving the occupancy sensing function of a sensor light without replacing an existing sensor light, thereby enabling stable continuous lighting when a person is present under the light.

[0010] Another object of the present invention is to provide an electronic device that operates at low power and can assist the presence sensing function of a sensor or the like for a long time using a commercial battery.

[0011] Another object of the present invention is to provide an electronic device that can be easily attached to an existing sensor or the like by means of a fixing means.

[0012] According to the present invention, there is an effect of improving the occupancy sensing function of a sensor light without replacing an existing sensor light, thereby enabling stable continuous lighting when a person is present under the light.

[0013] Additionally, it operates at low power, allowing it to support the presence sensing function of sensors for a long time even with commercial batteries.

[0014] Additionally, it has the effect of allowing easy attachment to existing sensors, etc. through a attachment means.

[0015] Figure 1 is a drawing for explaining a sensor light and its use according to conventional technology.

[0016] FIG. 2 is a drawing for explaining an electronic device and an existing sensor according to an embodiment of the present invention.

[0017] FIG. 3 is a drawing for explaining the configuration of an electronic device according to an embodiment of the present invention.

[0018] Figure 4 is a drawing for explaining the signal form detected by a PIR detection sensor such as an existing sensor.

[0019] FIG. 5 is a drawing for explaining the output signal form of an electronic device according to an embodiment of the present invention.

[0020] FIG. 6 is a drawing for explaining the waveform of power applied to a pseudo signal generator according to an embodiment of the present invention.

[0021] FIG. 7 is a drawing for explaining the installation form of an electronic device according to one embodiment of the present invention.

[0022] FIG. 8 is a drawing for explaining the installation form of an electronic device according to another embodiment of the present invention.

[0023] FIG. 9 illustrates a block diagram of an electronic device according to one embodiment.

[0024] FIG. 10 is a drawing showing an operation flow chart of an electronic device according to one embodiment.

[0025] FIG. 11 is a drawing showing an operation flow chart of an electronic device according to one embodiment.

[0026] FIG. 12 illustrates a system including a sensor and an electronic device, according to one embodiment.

[0027] An electronic device installed around a sensor light that is turned on by a PIR detection sensor includes a sensor unit for performing human body detection and continuously detecting the human body even when there is no movement of the human body, a control unit for receiving a human body detection signal generated from the sensor unit and controlling the generation of a pseudo-signal that is a fake human body detection signal, a pseudo-signal generator for generating heat exceeding a standard periodically or non-periodically according to the control according to human body detection of the control unit to generate a pseudo-signal according to human body detection, and a power unit for supplying operating power, wherein the sensor unit includes at least one of an ultrasonic sensor, an infrared sensor, a radar sensor, a bio-signal sensor, and an image sensor for detecting a human body, and the sensor light is turned on when the pseudo-signal is detected by the PIR detection sensor, and the pseudo-signal generator is configured with at least one heat-generating resistive heating element or at least one light-emitting infrared LED, and the heating cycle of the resistive heating element or the light-emitting cycle of the infrared LED is shorter than the cycle from lighting to turning off according to human body detection by the PIR detection sensor of the sensor light, and the PIR detection sensor of the sensor light is configured to sense the amount of heat change of a moving human body. It can be detected or turned on by detecting the pseudo signal.

[0028] The electronic device further includes a light sensor for detecting ambient illuminance, and when the light sensor determines that the PIR detection sensor is turned on, the control unit can transmit a trigger signal to the sensor unit for changing the sensor unit from a sleep state to a wake-up state.

[0029] The sensor light and the electronic device are electrically connected, and when a human body is detected by the PIR detection sensor and the electronic device receives a signal indicating that the human body has been detected by the sensor light, the control unit can transmit a trigger signal to the sensor unit to change the sensor unit from a sleep state to a wake-up state.

[0030] If it is determined that the sensor light is not turned on despite generating the pseudo signal, the pseudo signal generator can generate a pseudo signal of greater intensity than the pseudo signal.

[0031] Below, several embodiments will be described clearly and in detail with reference to the attached drawings so that those skilled in the art (hereinafter, “ordinary technicians”) can easily practice the present invention.

[0032] Hereinafter, the term "sensor light" may refer to a light source that turns on when a sensor detects a human body, a person, or any type of object. In this specification, the term "sensor light" is mainly described with reference to a sensor light that employs a PIR detection sensor as an example, but is not limited thereto. The term "sensor light" in this specification should be interpreted as a sensor light that employs any sensor capable of detecting a human body, a person, or any type of object.

[0033] Hereinafter, ‘existing sensor lights’ may refer to sensor lights already installed and used in a designated location.

[0034] FIG. 2 is a drawing for explaining an electronic device and an existing sensor according to an embodiment of the present invention.

[0035] The electronic device (20) is a device to assist the operation of the sensor light (10), and is intended to assist the stable operation of the sensor light (10) by complementing the shortcomings of the human body sensing function or the occupancy sensing function of the sensor light (10). The electronic device (20) can solve the problems of the PIR sensor of the existing sensor light (10) that employs the PIR detection sensor simply by being installed around the sensor light without replacing the sensor light. That is, since the existing PIR sensor is a method of detecting the amount of heat change, the problem of not being able to properly detect the presence of the human body when moving at low speed or when stopped, resulting in the light being turned off even when a person is present, can be easily solved by placing the electronic device (20) around the sensor light (10).

[0036] Referring to FIG. 2, an existing sensor light (10) that detects heat generated from a human body with a PIR detection sensor (11), which is a human body detection sensor, and turns on when a human body is detected exists in a predetermined space. An electronic device (20) can be placed within the detection range of the sensor light (10). The detection range refers to the range in which the sensor light (10) can detect a human body (or, including other types of objects) to turn on the light source. The placement location of the electronic device (20) can be anywhere within the detection range of the PIR detection sensor (11) around the existing sensor light (10).

[0037] An electronic device (20) placed within the detection range of a PIR detection sensor (11) can perform its own human body detection independently from the PIR detection sensor (11) and continuously generate a pseudo signal while a human body is detected, thereby outputting a fake human body signal (pseudo signal) to the PIR detection sensor (11). Accordingly, since the PIR detection sensor of the existing sensor light (10) continuously detects the pseudo signal, the sensor light (10) can be stably lit even if there is no significant movement of the human body while the human body remains within the detection range.

[0038] FIG. 3 is a drawing for explaining the configuration of an electronic device according to an embodiment of the present invention.

[0039] An electronic device (20) may include a sensor unit (23) for detecting a human body, a control unit (22) for receiving a human body detection signal generated from the sensor unit (23) and controlling the generation of a pseudo signal, a pseudo signal generator (21) for generating a pseudo signal according to human body detection under the control of the control unit (22), and a power supply unit (24) for supplying operating power to the sensor unit (23), the control unit (22), and the pseudo signal generator (21).

[0040] The pseudo signal generated by the pseudo signal generator (21) can be detected by the PIR detection sensor (11) of the sensor light (10), and the PIR detection sensor (11) of the sensor light (10) that detects this signal can recognize the pseudo signal as a human body detection signal.

[0041] The above sensor unit (23) performs human body detection within a predetermined range, and can generate a human body detection signal when a human body is detected.

[0042] The above sensor unit (23) can be configured with any type of human body detection sensor except for a PIR sensor that detects heat change. For example, the sensor unit (23) can be configured with various types of human body detection sensors such as an ultrasonic sensor that detects ultrasonic energy caused by the movement of the human body, an infrared sensor that detects infrared energy, a radar sensor that detects the phase change of radio waves through a patch antenna to detect the human body, a biometric detection sensor that can recognize a person through breathing, etc., a camera-based image sensor that can recognize a person, etc., but is not limited thereto. The sensor unit (23) can be configured with any type of sensor that can detect a human body even when there is no movement of the human body, unlike the PIR detection sensor (11) of the sensor (10) that detects heat change.

[0043] The control unit (22) can receive a human body detection signal generated from the sensor unit (23) and operate the pseudo signal generator (21). The control unit (22)'s operation control of the pseudo signal generator (21) can continue while the human body detection state of the sensor unit (23) is maintained. According to one embodiment, the control unit (22) can control the pseudo signal generator (21) so that the pseudo signal is continuously output while the human body detection by the sensor unit (23) continues. Alternatively, the control unit (22) can control the pseudo signal generator (21) so that the pseudo signal is intermittently or one-time output only to the extent that the sensor light (10) is kept on even when the human body detection by the sensor unit (23) continues.

[0044] The above pseudo signal generator (21) can independently generate and output a pseudo signal according to human body detection under the control of the control unit (22).

[0045] FIG. 4 is a drawing for explaining the signal form detected by a PIR detection sensor such as an existing sensor, according to one embodiment.

[0046] The PIR detection sensor (11) of the existing sensor light (10) generates a detection signal as shown in (a) of Fig. 4 when a person enters the detection range.

[0047] The PIR detection sensor (11) detects infrared rays (heat) emitted from the human body. That is, when a temperature change occurs due to external conditions (human body) within the surveillance area determined by the Fresnel lens, the pyroelectric element converts this temperature change into an electrical signal, and when it exceeds a certain standard (signal size / number of pulses generated), the human body detection situation can be output to the outside.

[0048] Additionally, if a person within the detection range does not move, a detection signal as shown in (b) of Fig. 4 can be generated. That is, since no thermal change occurs when a person does not move, a detection signal is no longer generated after a certain period of time.

[0049] Therefore, the pseudo signal generator (21) of the electronic device (20) must generate heat exceeding a reference value periodically or non-periodically as shown in FIG. 5 so that the PIR detection sensor (11) of the existing sensor light (10) continuously outputs a detection signal.

[0050] For this purpose, the pseudo signal generator (21) can generate a heat signal as a pseudo signal.

[0051] For example, the pseudo-signal generator (21) may be configured with at least one infrared LED that emits light periodically or non-periodically. At this time, the emission cycle of the infrared LED should be shorter than the cycle from lighting on to turning off according to the human body detection of the PIR detection sensor (11) (the time for which the light is maintained on after the human body is detected once by the sensor light (10). In this way, the sensor light (10) can be continuously lit by the pseudo-signal before it is turned on and then turned off. The infrared LED can generate a certain amount of heat along with light to generate a pseudo-signal tailored to the PIR detection sensor (11).

[0052] As another example, the pseudo signal generator (21) may be composed of at least one resistive heating element that periodically generates heat. At this time, the heating cycle of the resistive heating element should be shorter than the cycle from lighting on to turning off according to the human body detection of the PIR detection sensor (11) (the time for which the light is maintained on after the human body is detected only once by the sensor light (10). In this way, the sensor light (10) can be continuously lit by the pseudo signal before it is turned off after being lit. The resistive heating element can generate a certain amount of heat according to the applied power to generate a pseudo signal tailored to the PIR detection sensor (11).

[0053] More specifically, in the pseudo signal generator (21) of the other example described above, the resistance heating element is composed of two, and power can be applied as shown in Fig. 6 so that they are crossed over each other and heat up.

[0054] These resistance heating elements can enable the pseudo signal generator (21) to be driven at low power by adjusting the resistance value.

[0055] In particular, power efficiency can be further improved by applying power to each resistance heating element in the form of a PWM waveform. Here, the resistance heating element constituting the pseudo signal generator (21) does not necessarily have to be two, and even if it is configured as a single element, the configuration is possible as long as the heating cycle is shorter than the cycle from lighting to turning off according to human body detection by the PIR detection sensor (11).

[0056] FIG. 7 is a drawing for explaining the installation form of an electronic device according to one embodiment of the present invention.

[0057] In Fig. 7, the existing sensor light (10) can detect human movement through the PIR detection sensor (11) and turn on when a human body is detected. The electronic device (20) is installed within the detection range of the PIR detection sensor (11) around the existing sensor light (10) so that the PIR detection sensor (11) can detect a pseudo signal. The power supply (24) of the electronic device (20) can be configured with an existing indoor commercial power source or a battery.

[0058] In this arrangement, the electronic device (20) detects a human body on its own and generates a pseudo signal accordingly. This pseudo signal will be generated while the human body detection state of the sensor unit (23) within the electronic device (20) is maintained.

[0059] Accordingly, the above PIR detection sensor (11) maintains the lighting state dependent on the pseudo signal generated from the electronic device (20) regardless of human body movement.

[0060] FIG. 8 is a drawing for explaining the installation form of an electronic device according to another embodiment of the present invention.

[0061] If the power supply unit (24) of the electronic device (20) is configured with a battery, the overall size of the device can be manufactured to be extremely small. In this embodiment, the entire configuration of the pseudo signal generator (21), control unit (22), and sensor unit (23), including the power supply unit (24), can be built into a single housing (30).

[0062] In addition, the housing (30) can be attached to an existing sensor light (10) using a fastening means (25). When attaching, it is preferable that the pseudo signal generator (21) be attached so that it is close to the PIR detection sensor (11) of the sensor light (10) with a minimum gap. In such a structure, even if the pseudo signal generator (21) generates a heat signal of relatively small intensity, the PIR detection sensor (11) at a close distance will be able to sufficiently detect the heat signal. This can ultimately further increase the power efficiency of the electronic device (20).

[0063] Here, the fastening means may be any method that can fasten the housing (30) to the PIR detection sensor (11) or the sensor light (10). For example, the fastening means may be configured as an adhesive so that the PIR detection sensor (11) or the sensor light (10) can be firmly adhered to the housing (30). In addition, the fastening means may be configured as a hooking protrusion that can be hooked to a groove of the housing (30) so that the PIR detection sensor (11) or the sensor light (10) can be firmly hooked to the housing (30). In addition, the fastening means may be configured as a threaded protrusion that can be fitted into a screw groove of the housing (30) so that the PIR detection sensor (11) or the sensor light (10) can be firmly fitted to the housing (30).

[0064] In addition, the pseudo signal generator (21) may be built into a separate tube or enclosure so that the pseudo signal generator (21) is brought into close proximity to the PIR detection sensor (11) of the sensor light (10) with a minimum distance. At this time, it is important that the material of the tube or enclosure is made of a material through which the pseudo signal can pass so that the pseudo signal generated from the pseudo signal generator (21) inside can easily reach the PIR detection sensor (11) at a short distance. Through this configuration, the distance between the pseudo signal generator (21) and the PIR detection sensor (11) can be reduced, thereby increasing the energy efficiency of the pseudo signal generator (21) and enhancing the detection performance for the pseudo signal, thereby enabling more reliable device operation.

[0065] While minimizing the power consumption generated by the operation of the electronic device (20), the sensor light (10) should not be turned off while a person is under the light, causing inconvenience. As power consumption is minimized, if the electronic device (20) is configured with a battery as its power source, the battery's lifespan can be extended and the number of recharges can be reduced. Hereinafter, embodiments for reducing the power consumption of the electronic device (20) are disclosed.

[0066] According to one embodiment, the electronic device (20) may be configured to operate only when the sensor light (10) is turned on or when the sensor light (10) detects a human body. The electronic device (20) may conditionally operate only when the sensor light (10) is turned on. According to one embodiment, the sensor unit (23) of the electronic device (20) may operate when the sensor light (10) is turned on or when the sensor light (10) detects a human body. That is, the sensor unit (23) may not always detect a human body, but may operate only under certain conditions.

[0067] FIG. 9 illustrates a block diagram of an electronic device according to one embodiment.

[0068] The electronic device (32) of Fig. 9 is a device for assisting the operation of the sensor light (10), and is intended to assist the stable operation of the sensor light (10) by complementing the shortcomings of the human body sensing function or the occupancy sensing function of the sensor light (10). The electronic device (32) of Fig. 9 is different from the electronic device (20) described above in that it further includes a light sensor (35). Therefore, the contents of the electronic device (20) described above can be equally applied to the electronic device (32). The light sensor (35) is a sensor that can detect changes in the surrounding light, and the electronic device (32) operates based on the light sensor (35), thereby reducing the power consumption of the electronic device (32). The light sensor (35) may be included in the sensor unit (23) or may exist as a separate device from the sensor unit (23).

[0069] FIG. 10 is a flowchart illustrating the operation of an electronic device according to one embodiment.

[0070] In step S910, the light sensor can periodically or continuously check for changes in ambient illuminance. For example, the light sensor (35) can check for changes in ambient illuminance once every 10 seconds. The change in ambient illuminance is used to determine whether the sensor light (10) is turned on. Since the electronic device (20) is placed around the sensor light (10), when the sensor light (10) is turned on (lit), the ambient illuminance can become brighter.

[0071] In step S915, a change in ambient illuminance may be detected. If the ambient illuminance sensor (35) determines that the ambient illuminance has brightened to a reference value or higher, the sensor light (10) may be determined to be turned on. The reference value for the amount of change in illuminance may be, but is not limited to, 50 lux to 150 lux. For example, if the ambient illuminance changes from 20 lux or lower to 100 lux or higher, the sensor light (10) may be determined to be turned on.

[0072] When a change in ambient illuminance is detected (Yes), the sensor unit (23) can be operated. That is, the purpose of the present invention is to continuously light the sensor light (10) by generating a pseudo signal only when a human body is detected once and the sensor light (10) is turned on, so that the sensor unit (23) does not need to be operated all the time. When it is determined that the sensor light (10) is turned on by illuminance detection, in step S920, the control unit (22) sends a trigger signal to the sensor unit (23), and the sensor unit (23) can be changed from a sleep state to a wake-up state by the trigger signal.

[0073] In step S930, the sensor unit can detect a human body. If the sensor unit (23) detects a human body (Yes), in step S940, the control unit (22) can control the pseudo signal generator (21) to generate a pseudo signal. According to one embodiment, if it is determined that the sensor light (10) is not turned on despite generating the pseudo signal, the pseudo signal generator (21) can generate a pseudo signal with a greater intensity than the pseudo signal.

[0074] FIG. 11 is a flowchart illustrating the operation of an electronic device according to one embodiment.

[0075] The difference between the flowchart of Fig. 11 and the flowchart of Fig. 10 is that even if a human body is detected and a pseudo signal is generated, the light sensor (35) can continuously detect the surrounding illuminance. This is because, even though the sensor unit (23) determines that a human body is present and a pseudo signal is generated, the sensor light (10) may not recognize the pseudo signal (referred to as the first pseudo signal for comparison with the second pseudo signal in step S950) and the sensor light (10) may turn off, so it is necessary to determine whether to turn off the light and take subsequent measures.

[0076] In step S950, the electronic device can determine whether a human body has been detected but the ambient illuminance has become darker than a reference value. If a human body has been detected by the sensor unit (23) but the ambient illuminance has become darker than a reference value by the illuminance sensor (35) (for example, the ambient illuminance has decreased from 100 lux or more to 20 lux or less), it can be determined that the sensor light (10) has been turned off despite the pseudo signal (S940).

[0077] If it is determined that the sensor light (10) is turned off even though the electronic device detects a human body (Yes), in step S960, the control unit (22) can control the pseudo signal generator (21) to generate a second pseudo signal. The second pseudo signal is larger in size (or stronger in intensity) than the first pseudo signal generated in step S940. That is, even though the first pseudo signal was generated, there is a high possibility that the sensor light (10) did not recognize the first pseudo signal, so the second pseudo signal having a stronger intensity than the first pseudo signal is generated to turn the sensor light (10) on again. If the sensor light (10) is not turned on even when the second pseudo signal is generated, the electronic device (20) can generate a third pseudo signal having a stronger intensity than the second pseudo signal. According to another embodiment, in step S960, the control unit (22) can also control the pseudo signal generator (21) to generate the pseudo signal twice in succession. This may have the effect of increasing the on time of the pulse.

[0078] According to one embodiment, the electronic device (32) may not operate when the surroundings are bright. For example, even if the sensor light (10) is turned on during the day when sunlight is coming in, there is no need to generate a pseudo signal to keep the sensor light (10) turned on. The electronic device (32) may prevent the sensor unit (23) from operating when the illuminance obtained by the illuminance sensor (35) is 100 lux or higher. For example, the illuminance sensor of the electronic device (20) may not generate a trigger signal of the sensor unit (23) when the illuminance is 100 lux or higher.

[0079] According to one embodiment, a sign indicating that the sensor light (10) is turned off may be positioned around the sensor light (10) or on the sensor light (10) itself. The sign may be composed of LEDs, and the LEDs may be dimmed to indicate that the sensor light (10) is about to turn off. Alternatively, the sign may display numbers to indicate the expected time of turning off. The user may re-light the sensor light (10) with a small movement according to the display on the sign.

[0080] FIG. 12 illustrates a system in which an electronic device is linked to a sensor, according to one embodiment.

[0081] The electronic device (40) of Fig. 12 is identical to the electronic device (20) described above. Therefore, the contents regarding the electronic device (20) described above can be equally applied to the electronic device (40).

[0082] The electronic device (40) of FIG. 12 can perform the operations described above with reference to FIG. 11 without a light sensor by being linked to the sensor light (10). According to one embodiment, the sensor light (10) and the electronic device (40) can be electrically connected. The sensor light (10) and the electronic device (40) can be connected via a wired or wireless communication interface. According to one embodiment, when the sensor light (10) detects a human body, the electronic device (40) receives a signal indicating that a human body has been detected, and the sensor unit (23) can operate based on the received signal. The sensor unit (23) in the sleep state can be changed to the wake-up state based on the human body detection signal received from the sensor light (10). The human body detection signal received from the sensor light (10) (for example, a signal generated by a PIR detection sensor) can serve as a trigger signal for changing the state of the sensor unit (23).

[0083] According to one embodiment, the PIR detection sensor (11) of the sensor light (10) may be linked to the control unit (22) of the electronic device (40), and when a human body is detected by the PIR detection sensor (11), a signal indicating that a human body has been detected may be transmitted to the control unit (22). To this end, the PIR detection sensor (11) and the control unit (22) may be electrically connected via a wired or wireless communication interface. According to one embodiment, when the sensor light (10) detects a human body, the electronic device (40) may receive a signal indicating that a human body has been detected, and based on the received signal, the control unit (22) may transmit a trigger signal to the sensor unit (23) for changing the sensor unit (23) from a sleep state to a wake-up state.

[0084] According to one embodiment, the PIR detection sensor (11) of the sensor light (10) may be linked to the sensor unit (23) of the electronic device (40), and when a human body is detected by the PIR detection sensor (11), a signal indicating that a human body has been detected may be transmitted to the sensor unit (23). The sensor unit (23) may be changed from a sleep state to a wake-up state by the received human body detection signal. To this end, the PIR detection sensor (11) and the sensor unit (23) may be electrically connected via a wired or wireless communication interface.

[0085] In the embodiment of Fig. 12, rather than indirectly determining whether the sensor light (10) is turned on through a light sensor like the electronic device (32) of Fig. 11, it is possible to determine whether the sensor light (10) is turned on by directly receiving the human body detection signal of the sensor light (10) from the sensor light (10), so there is an advantage in that the configuration is simpler and direct linkage is possible.

[0086] The descriptions are intended to provide exemplary configurations and operations for implementing the present invention. The technical concept of the present invention encompasses not only the embodiments described above, but also implementations that can be achieved by simply modifying or altering the above embodiments. Furthermore, the technical concept of the present invention encompasses implementations that can be easily achieved by modifying or altering the above embodiments in the future.

Claims

1. In an electronic device installed around a sensor light that is turned on by a PIR detection sensor, A sensor unit for performing human body detection and continuously detecting the human body even when there is no movement in the human body; A control unit for receiving a human body detection signal generated from the above sensor unit and controlling the generation of a pseudo signal, which is a fake human body detection signal; A pseudo signal generator that generates heat exceeding a standard periodically or non-periodically according to control based on human body detection by the above control unit to generate a pseudo signal based on human body detection; Includes a power supply unit that supplies operating power, The above sensor unit includes at least one of an ultrasonic sensor, an infrared sensor, a radar sensor, a biosignal sensor, and an image sensor for detecting a human body, The sensor light is turned on when the pseudo signal is detected by the PIR detection sensor, The above pseudo signal generator is composed of at least one resistive heating element that generates heat or at least one infrared LED that emits light, and the heating cycle of the resistive heating element or the emission cycle of the infrared LED is shorter than the cycle from lighting to turning off according to the human body detection of the PIR detection sensor of the sensor light. The PIR detection sensor of the above sensor light is an electronic device that detects the amount of heat change of a moving human body or turns on by detecting the pseudo signal.

2. In paragraph 1, It further includes a light sensor to detect the ambient light, An electronic device in which, when the PIR detection sensor is determined to be turned on by the light sensor, the control unit transmits a trigger signal to the sensor unit to change the sensor unit from a sleep state to a wake-up state.

3. In paragraph 1, The above sensor lights and the above electronic device are electrically connected, An electronic device in which, when a human body is detected by the PIR detection sensor and the electronic device receives a signal indicating that the human body has been detected by the sensor, the control unit transmits a trigger signal to the sensor unit to change the sensor unit from a sleep state to a wake-up state.

4. In paragraph 1, An electronic device in which the pseudo signal generator generates a pseudo signal of greater intensity than the pseudo signal when it is determined that the sensor light is not turned on despite generating the pseudo signal.

Images