CN106094884B - Intelligent energy-saving control device - Google Patents
Intelligent energy-saving control device Download PDFInfo
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- CN106094884B CN106094884B CN201610496615.7A CN201610496615A CN106094884B CN 106094884 B CN106094884 B CN 106094884B CN 201610496615 A CN201610496615 A CN 201610496615A CN 106094884 B CN106094884 B CN 106094884B
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Abstract
The invention provides an intelligent energy-saving control device, which comprises a main chip, a motor connecting piece, a connecting plate, a pyroelectric infrared sensor and a microwave radar sensing chip, wherein the main chip, the motor connecting piece, the connecting plate, the pyroelectric infrared sensor and the microwave radar sensing chip are arranged in a closed space formed by a first shell and a second shell, the first end of the motor is connected with the main chip, the second end of the motor is connected with the motor connecting piece in a key connection mode, the second end of the motor is connected with the connecting plate, the motor drives the pyroelectric infrared sensor on the connected connecting plate to rotate through the second end of the motor, the microwave radar sensing chip is arranged at the bottom of the closed end of the second shell, and the motor is controlled to drive the pyroelectric infrared sensor to rotate according to the main chip so as to detect people indoors. The intelligent energy-saving control device adopts a setting form of combining the pyroelectric infrared sensor and the microwave radar sensing chip, improves the installation angle and height of the pyroelectric infrared sensor, and can detect moving and static people.
Description
Technical Field
The invention relates to the field of electronic technology application, in particular to the field of intelligent perception control.
Background
Nowadays, human target recognition has great development potential in the aspects of intelligent security, robot control, intelligent home and the like, and is developed independently as an important research direction in the field of computer vision. Features used for human identification need not only have some unique biological characteristics, but must also be easily expressed mathematically and quantitatively. The current application is more widespread in video-based human target detection. For example: street camera control, intelligent house security etc.. However, in some severe environments, there is no good light, so that human body detection based on visible light cannot be realized, and the application and research range of the human body detection is greatly limited. Accordingly, recognition technology for human body is receiving more and more attention.
In the prior art, most applications of human body identification are to detect human body movement by using a pyroelectric infrared sensor or a microwave radar sensor, and from the perspective of infrared rays, everyone can be regarded as an infrared emission source according to the difference of head, hand, foot and trunk statures. The wavelengths of the emitted infrared rays are different, and the target is detected by the pyroelectric infrared sensor according to the temperature difference of the target (human body) in the background (indoor) and the pyroelectric effect. However, the pyroelectric infrared sensor has a general sensing distance and a small angle, is greatly influenced by the environment, can only detect a static person, and is insensitive to the detection of a moving human body. From the radar perspective, the microwave radar inductor mainly reacts to the human removal of object, and the reaction rate of radar inductor is fast, is applicable to the object that is close to or keeps away from the microwave inductor with the certain speed of surveying, for example the personnel of walking with the certain speed pass through certain place, just can conveniently detect with the microwave. It is characterized in that once the nearby object is still, the radar does not react any more. And therefore no stationary human body is detected.
Therefore, the defects in the prior art are that for the detection of an indoor human body, the microwave radar sensor can only detect a moving object and cannot detect a static person, the pyroelectric infrared sensor can detect the static person and the moving person, but the detection sensitivity is not high, the fast moving person cannot be detected, and the installation angle and the installation height of the pyroelectric infrared sensor directly influence the detection area range.
Disclosure of Invention
The invention aims to solve the technical problem of providing an intelligent energy-saving control device, which adopts a setting form of combining a pyroelectric infrared sensor and a microwave radar sensing chip, improves the installation angle and the height of the pyroelectric infrared sensor, and ensures that the intelligent energy-saving control device can detect not only moving people but also static people with accurate detection.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: the invention provides an intelligent energy-saving control device, comprising: the indoor object detection device comprises a shell, a sensor and a control circuit, wherein the sensor is positioned inside the shell and used for detecting indoor objects under the control of the control circuit.
The whole intelligent energy-saving control device comprises a shell, a sensor and a control circuit, wherein the sensor and the control circuit are positioned in the shell, and the sensor is used for detecting indoor objects under the control of the control circuit. The control circuit in the shell controls the sensor to work, and can be used for detecting objects in a room.
The invention provides an intelligent energy-saving control device, comprising:
the intelligent energy-saving control device comprises a first shell with openings at two ends, wherein a detachable circular upper cover is arranged at the first opening end of the first shell, and a main chip and a power supply for supplying electric energy to the intelligent energy-saving control device are arranged in the first shell;
a second shell with an opening at one end, wherein the second opening end of the first shell is matched and connected with the opening end of the second shell to form a closed space, and the second open end of the first housing and the open end of the second housing are circular with the same diameter, the middle of the closed space is provided with a motor, a motor connecting piece and a connecting plate, the second shell is internally provided with induction equipment, the sensing device comprises a pyroelectric infrared sensor and a microwave radar sensing chip, the pyroelectric sensor is arranged on the connecting plate, the first end of the motor is connected with the main chip, the diameter of the motor connecting piece is smaller than that of the opening end of the second shell, the motor connecting piece is provided with a key hole, the second end of the motor is a transmission shaft, the transmission shaft is provided with a key groove, the motor connecting piece and the transmission shaft are in key connection with the keyhole through the key slot, the transmission shaft is connected with the connecting plate through a screw, the motor drives the pyroelectric infrared sensor on the connecting plate to rotate through the transmission shaft, the vertical included angle of the outermost rays of the pyroelectric infrared sensor is 45-73.74 degrees, the distance between the pyroelectric infrared sensor and the ground is the product of the sensing distance of the pyroelectric infrared sensor and the cosine of the vertical included angle of the outermost ray of the pyroelectric infrared sensor, the microwave radar sensing chip is arranged at the bottom of the closed end of the second shell, the back of the microwave radar sensing chip is also provided with a metal signal stopper, the microwave radar sensing chip is fixed at the bottom of the closed end of the second shell through a buckle, and controlling the motor to drive the pyroelectric infrared sensor to rotate according to the main chip so as to detect people indoors.
The technical scheme of the invention is as follows: the microwave radar detection device comprises a first shell, a second shell, a motor connecting piece, a connecting plate and induction equipment, wherein the induction equipment comprises a pyroelectric infrared sensor and a microwave radar induction chip, the first end of the motor is connected with the main chip, the diameter of the motor connecting piece is smaller than that of the opening end of the second shell, a key hole is formed in the motor connecting piece, the second end of the motor is a transmission shaft, a key groove is formed in the transmission shaft, the motor connecting piece and the transmission shaft are in key connection with the key hole through the key groove, the transmission shaft is connected with the connecting plate through a screw, the motor drives the pyroelectric infrared sensor on the connecting plate to rotate through the transmission shaft, the vertical included angle of the outer part of rays of the pyroelectric infrared sensor is 45-73.74 degrees, the distance between the pyroelectric infrared sensor and the ground is the product of the induction distance between the pyroelectric infrared sensor and the cosine of the vertical included angle of the outer part of the pyroelectric infrared sensor, the microwave radar induction chip is installed at the bottom of the closed end of the second shell, the microwave radar induction chip is fixed on the second shell through a buckle, and the microwave radar induction chip controls the rotation of the infrared sensor according to detect the rotation of the inner closed end of the pyroelectric infrared sensor.
Under the drive of inside motor, intelligence energy-saving control device, the rotatory indoor people that detects of pyroelectric infrared sensor in the response equipment, in pyroelectric infrared sensor's response within range, can detect static people through pyroelectric sensor, can detect the people of motion through microwave radar response chip simultaneously, through the setting to pyroelectric infrared sensor's mounting height and installation angle, can make intelligence energy-saving control device's detection scope wider, detect more accurately.
The intelligent energy-saving control device adopts the arrangement form of combining the pyroelectric infrared sensor and the microwave radar sensing chip, and improves the installation angle and the height of the pyroelectric infrared sensor, so that the intelligent energy-saving control device can detect not only moving people but also static people, and the detection is accurate.
Further, the vertical included angle of the outermost rays of the pyroelectric infrared sensor is 60 degrees. The perpendicular contained angle of the most outside ray of pyroelectric infrared sensor can be understood as pyroelectric infrared sensor's installation angle, because pyroelectric infrared sensor's sensing distance is general, and the angle is smaller, therefore pyroelectric infrared sensor's installation angle can influence its response scope and effect, and through experimental verification, when setting up pyroelectric infrared sensor's installation angle to 60, sensing distance and effect are best.
Furthermore, the microwave radar sensing chip is circular, and the circle center of the microwave radar sensing chip and the circle center of the intelligent energy-saving control device are the same point. Because microwave radar response chip is circular, set up its centre of a circle and whole intelligent energy-saving control device's the centre of a circle to the same point, can accomplish the laminating of at utmost, make the induction intensity in the arbitrary position of microwave radar response chip unanimous, the effect in each position that detects is unanimous.
Further, the transmission shaft is a rolling transmission shaft. The most common transmission shafts of motors are rolling transmission shafts and sliding transmission shafts, the sliding transmission shafts are transmission shafts without rolling bodies and sliding transmission shafts, the rolling transmission shafts utilize smooth metal balls or rollers and lubricated inner ring and outer ring metal surfaces to reduce friction, and the balls or rollers bear load and support the motor spindle so that the motor can stably rotate. Therefore, the device adopts the rolling transmission shaft. Other types of drive shafts may be selected.
Further, the number of the pyroelectric infrared sensors is 2, and each group includes two pyroelectric infrared sensors. According to the installation height and the installation angle of the pyroelectric infrared sensors, the number of the pyroelectric infrared sensors is determined according to the size of the indoor area, the indoor area is small, the inner 2 pyroelectric infrared sensors are started, the indoor area is large, and the outer 2 pyroelectric infrared sensors are started. According to the size of the indoor area, the number of the pyroelectric infrared sensors can be determined to be started, 4 pyroelectric infrared sensors are installed, and the indoor monitoring of the common area can be met. Therefore, the installation angle and height of the pyroelectric infrared sensor are improved, the optimal monitoring effect can be obtained, the indoor space is guaranteed to be detected in an all-round mode, and targets in a certain direction or in a certain corner cannot be omitted.
Furthermore, the sensing distance range of the pyroelectric infrared sensor is 1-10 meters. The pyroelectric infrared sensor consists of a sensing detection element, an interference filter and a field-effect tube matcher. When in design, the high thermoelectric material is made into a sheet with a certain thickness, metal electrodes are plated on two surfaces of the sheet, and then the sheet is polarized by applying electricity, so that the pyroelectric detecting element is manufactured, and the range of 1-10 meters can be measured.
Further, the power supply adopts an AC/DC circuit. The intelligent energy-saving control device can be directly used for strong current and weak current, and in order to be compatible with the two voltages, the power supply adopts an AC/DC circuit, namely an alternating current and direct current conversion circuit.
Further, the AC/DC circuit is a stepped voltage reduction circuit. Because the voltage values required by the equipment components are different, the stepped voltage reduction circuit is adopted in the circuit, the voltage can be divided into 220V,12V,5V and 3.3V, different voltage requirements can be met, and the stepped voltage reduction circuit is efficient and stable.
Further, the model of the pyroelectric infrared sensor is P2288. The pyroelectric infrared sensors are various in types, but the sensitivity of P2288 is high, and the accuracy of detecting a target person is higher.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below.
Fig. 1 is a schematic diagram illustrating a structural block of an intelligent energy-saving control device according to a first embodiment of the present invention;
fig. 2 is a top view of an upper connecting part of an intelligent energy-saving control device according to a first embodiment of the invention;
fig. 3 is a top view of a lower connecting member of the intelligent energy-saving control device according to the first embodiment of the invention;
fig. 4 is a top view of a connection board of the intelligent energy-saving control device according to the first embodiment of the invention;
fig. 5 is a schematic diagram illustrating a microwave radar sensing chip of the intelligent energy-saving control device according to the first embodiment of the invention;
fig. 6 is a schematic view illustrating the installation of a pyroelectric infrared sensor of the intelligent energy-saving control device provided by the first embodiment of the invention;
fig. 7 shows an AC circuit diagram of the intelligent energy-saving control device provided by the first embodiment of the invention;
fig. 8 shows a DC circuit diagram of the intelligent energy-saving control device according to the first embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
Example one
Fig. 1 is a schematic structural block diagram of an intelligent energy-saving control device according to a first embodiment of the invention; fig. 2 is a top view of an upper connecting part of an intelligent energy-saving control device according to a first embodiment of the invention; fig. 3 is a top view of a lower connecting member of the intelligent energy-saving control device according to the first embodiment of the invention; fig. 4 is a top view of a connection board of the intelligent energy-saving control device according to the first embodiment of the invention; fig. 5 is a schematic diagram illustrating a microwave radar sensing chip of the intelligent energy-saving control device according to the first embodiment of the invention; fig. 6 shows a schematic diagram of the installation of the pyroelectric infrared sensor of the intelligent energy-saving control device provided by the first embodiment of the invention.
The invention provides an intelligent energy-saving control device, comprising: the indoor object detection device comprises a shell, a sensor and a control circuit, wherein the sensor is positioned inside the shell and used for detecting indoor objects under the control of the control circuit.
The whole intelligent energy-saving control device comprises a shell (a first shell 1 and a second shell 3), a sensor (a pyroelectric infrared sensor 7 and a microwave radar sensing chip 12) and a control circuit, wherein the sensor is positioned inside the shell and used for detecting an indoor object under the control of the control circuit. The control circuit in the shell controls the sensor to work, and can be used for detecting objects in a room. Wherein the control circuit may be arranged on the connection board 6.
As shown in fig. 1 to 6, an intelligent energy-saving control apparatus according to a first embodiment of the present invention includes:
the intelligent energy-saving control device comprises a first shell 1 with openings at two ends, wherein a detachable circular upper cover 2 is arranged at the first opening end of the first shell 1, and a main chip and a power supply for supplying electric energy to the intelligent energy-saving control device are arranged in the first shell 1;
one end open-ended second casing 3, the second open end of first casing 1 and the cooperation of the 3 open ends of second casing connect into the enclosed space, and the second open end of first casing 1 and the open end of second casing 3 are the same circular of diameter, the centre of enclosed space is provided with motor 4, motor connecting piece 5 and connecting plate 6, be provided with induction equipment in the second casing 3, induction equipment includes pyroelectric infrared sensor 7 and microwave radar response chip 12, pyroelectric sensor 7 sets up on connecting plate 6, the main chip is connected to the first end of motor 4, the diameter of motor connecting piece 4 is less than the diameter of the 3 open ends of second casing, be provided with the keyhole on motor connecting piece 5, motor 4 second end is the transmission shaft, be provided with keyway 10 on the transmission shaft, motor connecting piece 5 and transmission shaft pass through keyway and keyhole 10 and realize the key-type connection, the transmission shaft passes through the screw and is connected with the connecting plate, motor 4 drives pyroelectric infrared sensor 7 on connecting plate 6 to rotate through the transmission shaft, the outer perpendicular contained angle of pyroelectric infrared sensor 7 is between 45 ~ 73.74 degrees, the distance of pyroelectric infrared sensor 7 is the pyroelectric infrared sensor 7 apart from ground for pyroelectric sensor 7 induction distance and the product and install in the perpendicular infrared sensor 12 of the microwave radar detection of the bottom of the second casing 3 detection infrared sensor 12, the second casing of the infrared sensor 12 of the detection of the infrared sensor of the bottom of the infrared sensor of the detection of the microwave radar detection according to the infrared sensor of the microwave radar detection.
The technical scheme of the invention is as follows: in the airtight space that first casing 1 and second casing 3 constitute, including the main chip, motor 4, motor connecting piece 5, connecting plate 6 and induction equipment, induction equipment includes pyroelectric infrared sensor 7 and microwave radar response chip 12, the main chip is connected to the first end of motor 4, the diameter of motor connecting piece 4 is less than the diameter of second casing 3 open end, be provided with the keyhole on the motor connecting piece 5, the motor 4 second end is the transmission shaft, be provided with keyway 10 on the transmission shaft, motor connecting piece 5 passes through keyway and keyhole 10 with the transmission shaft and realizes the key-type connection, the transmission shaft passes through the screw and is connected with the connecting plate, motor 4 drives pyroelectric infrared sensor 7 on the connecting plate 6 through the transmission shaft and rotates, the perpendicular contained angle of the outside ray of pyroelectric infrared sensor 7 is between 45 ~ 73.74, the distance of pyroelectric infrared sensor 7 to ground is the product of the perpendicular contained angle cosine of pyroelectric infrared sensor 7 induction distance and pyroelectric infrared sensor 7 ray, microwave radar response chip 12 is installed in second casing 3 bottom, the back of radar response chip 12 still installs a metal signal stopper 13, microwave radar response chip 12 passes through the buckle and fixes at second casing 3, the blind end according to the rotation of pyroelectric infrared sensor 4, the blind end of pyroelectric infrared sensor drive indoor detection people's of the control motor of the blind end of pyroelectric infrared sensor 7.
Under the drive of inside motor 4, intelligence energy-saving control device, the indoor people of pyroelectric infrared sensor 7 rotation detection in the response equipment, in pyroelectric infrared sensor 7's response within range, can detect static people through pyroelectric sensor, can detect the people of motion through microwave radar response chip 12 simultaneously, through the setting to pyroelectric infrared sensor 7's mounting height and installation angle, can make intelligence energy-saving control device's detection scope wider, detect more accurately.
The intelligent energy-saving control device adopts the arrangement form of combining the pyroelectric infrared sensor and the microwave radar sensing chip 12, improves the installation angle and the height of the pyroelectric infrared sensor, and ensures that the intelligent energy-saving control device can detect not only moving people but also static people with accurate detection.
Wherein, a metal signal blocker 13 is installed on the back of the microwave radar sensing chip 12, and the metal signal blocker 13 is made of special material and can block the interference of other devices to the microwave radar sensing chip 12. According to the invention, the microwave radar sensing chip 12 is fixed in a fastening mode, so that the microwave radar sensing chip 12 is more stably installed, and the optimal sensing effect is achieved.
As shown in fig. 1 to 3, the key connection between the motor 4 and the motor connecting piece 5 is realized in a specific manner, the motor connecting piece 5 is divided into an upper connecting piece 8 and a lower connecting piece 9, the upper connecting piece 8 and the lower connecting piece 9 are both circular, the diameter of the upper connecting piece is smaller than the diameter of the opening end of the second shell 3, the center of the upper connecting piece 8 is provided with a keyhole 10, the center of the lower connecting piece 9 is provided with a bulge 11, the bulge 11 is provided with a through hole, the transmission shaft is provided with a key slot, the transmission shaft passes through the through hole on the bulge 11, the key slot on the transmission shaft is connected with the keyhole 10 on the upper connecting piece 8, the diameter of the bulge 11 is larger than the diameter of the transmission shaft, the diameter of the keyhole 10 is smaller than the diameter of the keyhole 10, the bulge 11 can pass through the key hole 10, the transmission shaft is connected with the connecting plate 6 through a screw, the motor 4 can drive the connecting plate 6 to rotate, and then the pyroelectric infrared sensor 7 on the connecting plate 6 also rotates accordingly.
The pyroelectric infrared sensor 7 detects human beings through temperature, because in nature any object above the absolute temperature (-273 ℃) will produce infrared spectrum, and the infrared wavelength depends on the temperature of the object with different temperature because the wavelength of the infrared energy released by the object with different temperature is different. The pyroelectric infrared sensor 7 is sensitive to infrared radiation with a wavelength in the range of 8 to 14um and converts heat energy into an electrical signal. Human bodies or animals with larger volumes have constant body temperature, generally at 37 ℃, so infrared rays with specific wavelength of about 10 mu m can be emitted, when the human bodies enter a detection area, the infrared rays with the wavelength of about 10 mu m emitted by the human bodies are concentrated on an infrared induction source (a pyroelectric infrared sensor 7) after being enhanced by a Fresnel lens optical filter due to the difference between the human body temperature and the environmental temperature, the infrared induction source loses charge balance when receiving human body infrared radiation, charges are released outwards, and delta T is further generated and output to peripheral circuits, and alarm signals can be generated after the subsequent circuits are subjected to detection processing. If the human body does not move after entering the detection area, the temperature does not change, and the sensor does not output signals, so that the pyroelectric infrared sensor 7 is rotated to detect the static human body. The microwave radar sensing chip 12 has strong anti-interference capability and high sensitivity when detecting moving objects, so the invention adopts the arrangement mode of combining the pyroelectric infrared sensor 7 with the microwave radar sensing chip 12, thereby leading the detection effect to be better.
As a preferred embodiment of the present invention, the microwave radar sensing chip 12 is circular, and the center of the circle of the microwave radar sensing chip 12 is the same as the center of the circle of the intelligent energy-saving control device. Because microwave radar response chip 12 is circular, set up its centre of a circle and whole intelligent energy-saving control device's the centre of a circle to the same point, can accomplish the laminating of at utmost, make the induction intensity in the arbitrary position of microwave radar response chip 12 unanimous, the effect in each position that detects is unanimous.
In particular, the drive shaft is a rolling drive shaft. The transmission shafts of the motor 4 are commonly used in four types, the most common transmission shafts of the motor 4 are a rolling transmission shaft and a sliding transmission shaft, the sliding transmission shaft is a transmission shaft without rolling bodies and performs sliding motion, and the rolling transmission shaft reduces friction by using smooth metal balls or rollers and lubricated inner ring and outer ring metal surfaces, and the balls or rollers bear loads and support the main shaft of the motor 4 so that the motor 4 can stably rotate. Therefore, the device adopts the rolling transmission shaft.
Specifically, referring to fig. 6, a specific analysis shows that the number of the pyroelectric infrared sensors 7 installed is 4 in combination with the installation schematic diagram of the pyroelectric infrared sensors. Pyroelectric infrared sensors 71,72,73,74; the pyroelectric infrared sensors are installed in two groups, the installation angles of each group of pyroelectric infrared sensors are different, the central projections of the 4 pyroelectric infrared sensors are all on the same straight line, the number of the pyroelectric infrared sensors 7 is determined according to the installation height and the installation angle of the pyroelectric infrared sensors 7, the indoor area is small, 2 pyroelectric infrared sensors 71 and 72 are started, the indoor area is large, the other two pyroelectric infrared sensors 73 and 74 are started, the drawing shows that when the longest side length of a space is larger than 3 times L, the 2 pyroelectric infrared sensors 73 and 74 arranged on the outer side are started, the installation angles of the two pyroelectric infrared sensors 7 are 60 degrees, when the longest side length of the space is smaller than 3 times L, the 2 pyroelectric infrared sensors 71 and 72 arranged on the inner side are started, and the installation angles of the two pyroelectric infrared sensors 7 are also 60 degrees; the indoor space is guaranteed to be detected in all directions, and targets in a certain direction or corners cannot be omitted. According to the size of the indoor area, the number of the pyroelectric infrared sensors 7 can be determined, the installation number is 4, and the indoor monitoring of the common area can be met. Therefore, the mounting angle and height of the pyroelectric infrared sensor 7 are improved, the optimal monitoring effect can be obtained, the indoor space can be detected in all directions, and targets in a certain direction or corner cannot be omitted.
Because the pyroelectric infrared sensor 7 is limited by the installation angle and the range for detecting people is limited, the pyroelectric infrared sensor 7 in the intelligent energy-saving control device is set to be driven by the motor 4 to rotate, and because the hemispherical pyroelectric infrared sensor 7 is adopted in the intelligent energy-saving control device, the detection area of each group of pyroelectric infrared sensors (the first group is 71 and 72, and the second group is 73 and 74) is a sector area, when the pyroelectric infrared sensor 7 rotates, the sector area is expanded, when people are detected, the pyroelectric infrared sensor 7 stops rotating, so that the pyroelectric infrared sensor 7 rotates during detection, and the detection range can be expanded.
Specifically, each pyroelectric infrared sensor 7 has a processing chip correspondingly arranged, and the processing chip is mounted on the connecting piece 6 through a sub-connecting piece or other modes, can process a detection signal received by the pyroelectric infrared sensor 7, and judges whether a person is detected or not.
The working principle of the pyroelectric infrared sensor 7 is as follows: once a person invades the detection area, the infrared radiation of the human body is received by the pyroelectric infrared sensor 7, but because the installation angles are different, the two pyroelectric infrared sensors 71 and 72 (73 and 74) receive different target heat, the pyroelectric energy is also different and cannot be completely offset, and therefore, the connecting plate 6 also comprises an operational amplifier, a voltage comparator, a state voltage judging device, a delay time timer and a blocking time timer; the control signal is output after being processed by the processing circuit. If a person is detected, the output control signal is at a high level, and if no person is detected, the output control signal is at a low level.
Specifically, the vertical included angle of the outermost rays of the pyroelectric infrared sensor 7 is an installation angle, the distance between the pyroelectric infrared sensor 7 and the ground is an installation height, the installation angle and the installation height of the pyroelectric infrared sensor 7 are specifically described, and the "comfortable" inter-opening middle-to-middle size of a general master bedroom is 3.9m (net 3.6 m), the depth middle-to-middle size is 5.1m (net 4.8 m), the height of a floor is about 2.8m, h =2.8,2 × l =5.1, and β =42.32. Wherein, H is the mounting height of intelligent energy-saving control device, and Dmax is the biggest straight line induction distance of pyroelectric infrared sensor 7, and beta is the perpendicular contained angle of the outside ray of the pyroelectric infrared sensor 7 that sets up the inboard, and the installation angle of inboard pyroelectric infrared sensor 7 is 45 in the actual test. The maximum sensing distance Dmax of the pyroelectric infrared can be adjusted within the range of 1-10 meters, beta =73.74 degrees is obtained according to H/cos beta < Dmax, and the installation angle of the outer pyroelectric infrared sensor 7 is smaller than the maximum sensing distance Dmax, so that the installation angle of the pyroelectric infrared sensor is generally 45-73.74 degrees, and in order to achieve the optimal monitoring effect in actual tests, the installation angles of the pyroelectric infrared sensors 71,72,73 and 74 are all set to be 60 degrees.
As shown in fig. 7, the positive pole is L terminal, the N terminal is grounded, as shown in fig. 8, the positive pole is DC +, the negative pole is godd, and the power source adopts AC/DC circuit. The intelligent energy-saving control device can be directly used for strong current and weak current, and in order to be compatible with the two voltages, the power supply adopts an AC/DC circuit, namely an alternating current and direct current conversion circuit. The device can effectively protect original devices of the device no matter the high voltage 220V is directly input or the low voltage 12V is input, and simultaneously, the device function can be maximally played.
In particular, the AC/DC circuit is a stepped voltage step-down circuit. Because the required voltage value of equipment components and parts is different, adopted cascaded step-down circuit in the circuit, the voltage can be divided into 220V,12V,5V and 3.3V, can satisfy different voltage demands, and this cascaded step-down circuit is high-efficient stable.
Specifically, the pyroelectric infrared sensor 7 is P2288. The pyroelectric infrared sensor 7 has many kinds, but the sensitivity of P2288 is high, and the accuracy of detecting a target person is higher, the P2288 is packaged by adopting a TO-5 type metal shell, and a rectangular silica glass window is arranged at the top of the sensor and used for receiving infrared rays.
The device comprises a pyroelectric infrared sensor, a microwave radar sensing chip, a voltage judger and a controller, wherein the pyroelectric infrared sensor is connected with the microwave radar sensing chip, and the voltage judger is connected with the pyroelectric infrared sensor and the microwave radar sensing chip respectively and used for receiving and processing detection signals of the pyroelectric infrared sensor and the microwave radar sensing chip and detecting indoor people. The voltage judger is respectively connected with the pyroelectric external sensor and the microwave radar sensing chip, and whether people exist indoors or not can be judged according to voltage signals output by the pyroelectric external sensor and the microwave radar sensing chip. Defining the output voltage signal of the pyroelectric infrared sensor as V 1 Defining the voltage signal output by the microwave radar sensing chip as V 2 The voltage output by the human body is different, and the voltage judger can judge the voltage through the pair V 1 And V 2 When V is judged 1 And/or V 2 The output is high, indicating that a person is detected, when V 1 And/or V 2 The output is low indicating that no human is detected.
Example two
The intelligent energy-saving control device can be applied to different scenes based on the detection of a human body to realize different functions, and the intelligent energy-saving control device is connected with indoor equipment in a wired or wireless manner and then is monitored in real time through the mobile terminal.
TABLE 1 Lamp control
TABLE 2 socket switch control
TABLE 3 air conditioner control
Table 4 environmental monitoring
Therefore, the intelligent energy-saving control device realizes the on-off control and the environment monitoring of the indoor electric equipment by controlling the electric equipment in the application scene, detecting the human body in the induction area and setting the corresponding photosensitive induction device, the relay, the environment monitoring sensor and the like, realizes the energy saving by controlling the indoor electric equipment, and realizes the environment monitoring by detecting the toxic and dangerous gas in the room. Therefore, the above purpose can be achieved by arranging the relevant detection elements such as the photoresistor, the relay, the temperature detection sensor, the formaldehyde detection sensor and the like on the intelligent energy-saving control device, and certainly, the detection elements can also be arranged outside the intelligent energy-saving control device and connected with the intelligent energy-saving control device in a control way, and then the intelligent control is realized through the mobile terminal, so that the purposes of energy saving of indoor electric appliances and environment monitoring are achieved. For example, the switch of the indoor socket, the air conditioner and other electrical appliances can be remotely controlled through the mobile terminal (mobile phone and computer) through a network, and the indoor safety and environmental indexes can be monitored in real time through the mobile terminal. Therefore, the intelligent energy-saving control device can provide intelligent, safe and comfortable home and office environment for people.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (9)
1. Intelligent energy-saving control device, its characterized in that includes: the sensor is used for detecting indoor objects under the control of the control circuit;
the intelligent energy-saving control device comprises a first shell with openings at two ends, wherein a detachable circular upper cover is arranged at the first opening end of the first shell, and a main chip and a power supply for supplying electric energy to the intelligent energy-saving control device are arranged in the first shell;
the microwave radar device comprises a second shell with an opening at one end, wherein the second opening end of the first shell and the opening end of the second shell are matched and connected to form a closed space, the second opening end of the first shell and the opening end of the second shell are circular and have the same diameter, a motor connecting piece and a connecting plate are arranged in the middle of the closed space, sensing equipment is arranged in the second shell and comprises a pyroelectric infrared sensor and a microwave radar sensing chip, the pyroelectric infrared sensor is arranged on the connecting plate, the first end of the motor is connected with the main chip, the diameter of the motor connecting piece is smaller than that of the opening end of the second shell, a keyhole is arranged on the motor connecting piece, the second end of the motor is a transmission shaft, a key groove is arranged on the transmission shaft, the motor connecting piece and the transmission shaft are in key connection with the keyhole through the key groove, the transmission shaft is connected with the connecting plate through a screw, the motor drives the pyroelectric infrared sensor on the connecting plate to rotate through the transmission shaft, the outermost ray of the pyroelectric infrared sensor is vertically arranged at an included angle of 45-73.74 degrees, the distance from the pyroelectric infrared sensor to the ground is equal to the sensing distance between the pyroelectric sensor and the pyroelectric infrared sensor and the induction distance from the ground, the second shell is fixed to the bottom of the second shell, the microwave radar device, and the microwave radar device, the microwave radar device is further fixed on the back of the closed end of the second shell, and the microwave radar device, and the microwave radar device.
2. The intelligent energy-saving control device according to claim 1,
the vertical included angle of the outermost rays of the pyroelectric infrared sensor is 60 degrees.
3. The intelligent energy-saving control device according to claim 1,
the microwave radar sensing chip is circular, and the circle center of the microwave radar sensing chip and the circle center of the intelligent energy-saving control device are the same point.
4. The intelligent energy-saving control device according to claim 1,
the transmission shaft is a rolling transmission shaft.
5. The intelligent energy-saving control device according to claim 1,
the number of the pyroelectric infrared sensors is 2, and each group comprises two pyroelectric infrared sensors.
6. The intelligent energy-saving control device according to claim 1,
the sensing distance range of the pyroelectric infrared sensor is 1-10 meters.
7. The intelligent energy-saving control device according to claim 1,
the power supply adopts an AC/DC circuit.
8. The intelligent energy-saving control device according to claim 7,
the AC/DC circuit is a stepped voltage reduction circuit.
9. The intelligent energy-saving control device according to claim 1,
the model of the pyroelectric infrared sensor is P2288.
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| CN107816985B (en) * | 2017-10-31 | 2021-03-05 | 南京阿凡达机器人科技有限公司 | Human body detection device and method |
| CN109788609A (en) * | 2017-11-10 | 2019-05-21 | 惠州莫思特智照科技有限公司 | Sense light and its driving device and inductor |
| CN109785571B (en) * | 2019-01-17 | 2020-12-15 | 杭州超翔科技有限公司 | Fire early warning system of intelligent garage |
| CN110513318A (en) * | 2019-08-21 | 2019-11-29 | 广东乐美智家环境科技股份有限公司 | A kind of intelligent fan of microwave radar induction and infrared induction control system and the application system |
| CN112945401A (en) * | 2021-01-20 | 2021-06-11 | 湖北理工学院 | Human body infrared two-in-one equipment based on pyroelectric infrared sensing |
| CN113514901A (en) * | 2021-04-26 | 2021-10-19 | 河北红岸基地科技有限公司 | Human body detection method based on dual detection |
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