CN113009936A - Positioning system and positioning control method of fan heater - Google Patents
Positioning system and positioning control method of fan heater Download PDFInfo
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
- G05D3/20—Control of position or direction using feedback using a digital comparing device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2064—Arrangement or mounting of control or safety devices for air heaters
- F24H9/2071—Arrangement or mounting of control or safety devices for air heaters using electrical energy supply
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0022—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation of moving bodies
- G01J5/0025—Living bodies
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- G01V8/10—Detecting, e.g. by using light barriers
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Abstract
The invention discloses a positioning system and a positioning control method of a fan heater, wherein the positioning system comprises an actuating mechanism and a heating part, the actuating mechanism drives the heating part to rotate, and the positioning system also comprises an infrared sensor and a controller, wherein the infrared sensor is used for acquiring infrared signals of heat sources around the fan heater and sending the detected infrared signals to the controller; the controller locks the position information of the heating part of the heater unit according to the received infrared signal, and the controller constructs a working rotation area of the heater unit according to the position information of the heating part; the working rotating area of the warm air blower covers the human body moving area detected by the infrared sensor, and the actuating mechanism drives the heating part to rotate forwards and backwards in the working rotating area of the warm air blower. The fan heater has high positioning accuracy, the fan heater can be changed according to the change of the range of people, and the use efficiency is higher.
Description
Technical Field
The invention relates to the technical field of control of a fan heater, in particular to a positioning system and a positioning control method of the fan heater.
Background
The existing fan heaters only have the intelligent functions of finding human bodies and automatically turning on and off the fan heaters, so that the whole fan heater is always in the limit movement range in work; when the fan heater is used, when a person is in a certain range, the fan heater is always from the maximum to the minimum, and further the rotating range is always larger, and the person cannot feel the heat of the fan heater within a certain period of time, so that the effect of the fan heater is not fully exerted; meanwhile, the warm air blower is large in rotation range, so that the warm air blower cannot work in an effective area all the time within a certain range, certain rotation causes ineffective work, people cannot sense warm air, and energy waste of the warm air blower is achieved.
In the prior art, the fan heater can only move within a limit range all the time, and can not be positioned according to a human body, so that the corresponding working state can be adjusted, and the problems of poor using effect and poor experience of the fan heater are caused.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a positioning system and a positioning control method of a fan heater, and the infrared sensor and the controller are adopted to further acquire the available human body activity area, so that the working positioning of the fan heater in the human body activity area is realized, and the working efficiency of the whole fan heater is improved.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a positioning system of a fan heater comprises an actuating mechanism and a heating part, wherein the actuating mechanism drives the heating part to rotate, and the positioning system further comprises an infrared sensor and a controller, wherein the infrared sensor is used for acquiring infrared signals of heat sources around the fan heater and sending the detected infrared signals to the controller;
the controller locks the position information of the heating part of the heater unit according to the received infrared signal, and the controller constructs a working rotation area of the heater unit according to the position information of the heating part;
the warm air blower work rotation area covers the human body movement area detected by the infrared sensor, and in the warm air blower work rotation area, the actuating mechanism drives the heating part to rotate in the forward direction and the reverse direction.
In the technical scheme, by utilizing the induction function of the infrared sensor, compared with the prior art, the infrared signal in the corresponding scanning area is obtained, and then the controller can directly obtain the information about the heat source output of the warm air blower and the heat source of the surrounding environment, so that a foundation is provided for the controller to adjust the output heat source of the warm air blower in the next step.
In the technical scheme, the controller judges whether the heat source needs to be continuously output or a larger or smaller heat source is output according to the heat source information around the fan heater obtained by the infrared sensor and the prestored data, so that a foundation is provided for further control of heat source output.
In the technical scheme, the working rotating area constructed by the heating part of the fan heater covers the human body moving area, namely, the controller can control the heating part to output a heat source in a manned area, and the controller can control the heating part to bypass or avoid the area to work in an unmanned area, namely, the unmanned area does not output the heat source.
The actuating mechanism drives the heating component to rotate, and the rotation can comprise two forms, and the two forms are selected alternatively: firstly, an actuating mechanism is linked with a heating part, and the actuating mechanism rotates and drives the heating part to rotate; secondly, actuating mechanism and heating part mutual independence, actuating structure drive whole electric fan heater and rotate, then the heating part of assembling on the electric fan heater then follows the electric fan heater and rotates, according to this scheme, actuating structure can be the gyro wheel of base.
In a preferred embodiment of the present invention, the infrared signal is an analog voltage signal output by the infrared sensor.
In this technical solution, the analog signal refers to a signal in which the information parameter appears as continuous signal within a given range. Or in a continuous time interval, the characteristic quantity representing the information may be present as a signal of any value at any instant. In the technical scheme, the voltage signal is transmitted by a traditional analog signal transmission line (such as a telephone network and a cable television network); the obtained signal voltage is continuously changed, and compared with a value at a certain moment, the detection capability is stronger, and the detection accuracy in a large range is higher.
In this technical scheme, adopt analog voltage signal, it can convert digital signal into, and then controller later stage data processing is more convenient.
In a preferred embodiment of the present invention, if the infrared sensor detects a person, the output analog voltage signal is a value different from 0, specifically 0.1 to 10V, that is, 0.1V, 0.5V, 1V,3V, 5V,10V, and the like, the controller automatically converts the received analog voltage signal into a digital signal "1" to determine that the person is present, and the controller records a value corresponding to the current position information of the heating component; and if the infrared sensor cannot detect people, the output analog voltage signal is 0V.
Through the zero and non-zero of the analog voltage signal, the user can intuitively see what region is occupied and no person is occupied, namely, the converted data can directly obtain the effective human body activity region; meanwhile, the range of the analog voltage signal is selected from 0V and 0.1-5V, namely the infrared sensor outputs a voltage signal of 0-5V, the range accords with the signal range of most sensors, and meanwhile, a common controller can process the signal range in the range, so that the selection models of the infrared sensor and the controller are wider.
In a preferred embodiment of the present invention, the infrared signal processing device further comprises an AD conversion module, wherein the infrared signal is converted into a digital signal by the AD conversion module and then sent to the controller; the digital signal is a quantized value reflecting the heat energy intensity of the current object.
The quantized value represents a specific numerical value of a digital signal, and the numerical value is obtained by converting the infrared signal through an AD conversion module.
In the technical scheme, the AD conversion module is used for directly converting the infrared signals into the digital signals and further directly obtaining the quantized values, and the quantized values are more visual compared with the previous infrared signals, namely the controller can visually obtain the working condition of the current fan heater. In the prior art, a computer local area network and a metropolitan area network all use binary digital signals, that is, at present, the binary digital signals and analog signals converted from the digital signals are actually transmitted in the computer wide area network. But more promising are digital signals. The converted digital signal has good application and development prospect, and the control of the fan heater is more convenient.
In a preferred embodiment of the present invention, the intensity of the heat energy of the current object is compared with the set value of the controller, and the comparison result is used to determine whether the person is present or not, and at the same time, whether the position information of the heating component of the lower heater unit is locked or not.
In the technical scheme, whether a person exists is specifically judged, instead of detecting the person simply according to infrared, the heat energy intensity of the human body is compared with a value set by a controller, and if the value is greater than or equal to the heat energy intensity set by the controller, the situation that the person exists in the range is shown; if the value is too small, the result shows that no person is present, and the infrared sensor is combined for detection, so that the precision is higher, and the accuracy is higher.
In a preferred embodiment of the present invention, the infrared sensor scans the human body activity in each set period, and the set period is more than 3 min.
In the technical scheme, by increasing the set period, when a person moves continuously in a certain time period, the effective movement range can still be locked; meanwhile, when a person leaves at a certain moment, the person can be quickly reflected to leave, the previous warm air blower works to rotate the area, and needs to be adjusted to adapt to a newly detected human body activity area, so that the whole positioning precision is higher, the utilization efficiency of the warm air blower is further improved, less invalid work is generated, and the resource utilization is more reasonable.
In a preferred embodiment of the present invention, the actuator employs two motors, including a first motor for driving the infrared sensor to rotate and a second motor for driving the heating component.
In the technical scheme, the infrared sensor and the heating part are driven to rotate by different motors respectively, so that on one hand, the problem of large error caused by mutual influence between the two rotating parts is avoided in use; on the other hand, the infrared sensor is driven to rotate through the independent motor, the rotating range of the infrared sensor can be adjusted according to actual conditions, and then the motor on the heating component can be correspondingly adjusted after the range detected by the infrared sensor is changed.
In a preferred embodiment of the present invention, the infrared sensors include two or more infrared sensors, the two or more infrared sensors detect human body movement together and construct a human body movement area, and the human body movement area is less than or equal to the limit rotation range of the fan heater during limit rotation.
In this technical scheme, through the infrared sensor more than 2, the human home range of detection of furthest as far as possible avoids omitting some regions, and simultaneously, the infrared sensor common work more than two, when one of them has a problem, another one can continue work, avoids breaking down because of infrared sensor, the unable problem of fixing a position of whole electric fan heater that causes for among the infrared sensor more than two, one can regard as the substitute at any time and reserve of another one, the increase of service life.
The invention also discloses a fan heater control method adopting the positioning system, which comprises the following steps:
firstly, the fan heater works for at least one period within the limit rotation range;
step two, acquiring infrared signals of heat sources around the fan heater by the infrared sensor in a period, and sending the detected infrared signals to the controller;
and step three, the controller confirms the human body activity area according to the infrared signal and drives the thermal radiation emitted by the heating part to cover the human body activity area.
Firstly, according to the invention, by acquiring the position of the moving object and establishing the corresponding data of the effective movement range, compared with the prior art that the fan heater can only be switched on or off or manually adjusted in different working states, a foundation is provided for carrying out positioning control on the fan heater through the position of the moving object in the later period, and the position information of the moving object can be timely known through the data, so that the corresponding operation adjustment is carried out.
Secondly, in the invention, the control unit can be effectively adjusted according to the requirement by acquiring the effective movement range, and compared with the traditional mode, the control of the control unit is more comprehensive, not only is the control of one opening, but also the control of the movement range and the area of the whole driving device; the control of the fan heater is more intelligent, and the user experience is stronger.
And compared with the fan heater in the prior art, the fan heater does not need to move within a limit range all the time, so that the whole movement range is efficient, the movement range of the fan heater can be adjusted along with people, the output of ineffective work is reduced, and the use efficiency of the fan heater is improved.
Finally, in the invention, the effective motion range is output, and then the effective motion range can be adjusted at the beginning according to requirements when in use, so that the effective motion range suitable for a user is directly output by the control unit when the user uses the device, and the problems of constant motion range, excessive ineffective work output when a moving object moves, poor user experience and the like are avoided.
In a preferred embodiment of the present invention, the one cycle includes: the fan heater rotates forwards and/or backwards for one circle within the limit rotation range.
In the invention, a cycle is formed by rotating forwards and/or reversely for one circle, so that at least two extreme values can be ensured to be reached respectively, effective selection in an extreme value range is realized, and omission when the extreme values form an effective motion range under certain conditions is avoided.
In the invention, extreme determination can be formed in three ways, namely, positive rotation for one circle; secondly, reversing for one circle; thirdly, the rotation is performed in forward and reverse directions for one circle respectively. The three modes can reach the extreme of a week, different modes can be selected according to the working mode of the fan heater, and various schemes are provided for selecting extreme endpoint values.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic circuit diagram of a positioning system of a fan heater according to the present invention.
Fig. 2 is a flowchart of a positioning control method of a fan heater according to the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example 1
Referring to fig. 1, in the present embodiment, the core components of the positioning system are mainly described.
The positioning system of the warm air blower in the embodiment comprises an executing mechanism, a heating part, an infrared sensor and a controller, wherein the executing mechanism drives the heating part to rotate;
the controller locks the position information of the heating part of the heater unit according to the received infrared signal, and the controller constructs a working rotation area of the heater unit according to the position information of the heating part;
the warm air blower work rotation area covers the human body movement area detected by the infrared sensor, and in the warm air blower work rotation area, the actuating mechanism drives the heating part to rotate in the forward direction and the reverse direction.
The actuating mechanism drives the heating component to rotate, and the rotation can comprise two forms, and the two forms are selected alternatively: firstly, an actuating mechanism is linked with a heating part, and the actuating mechanism rotates and drives the heating part to rotate; secondly, actuating mechanism and heating part mutual independence, actuating structure drive whole electric fan heater and rotate, then the heating part of assembling on the electric fan heater then follows the electric fan heater and rotates, according to this scheme, actuating structure can be the gyro wheel of base.
In the embodiment, by utilizing the sensing function of the infrared sensor, compared with the known method that whether a person approaches the fan heater is obtained only through the infrared sensor, the infrared sensor in the embodiment obtains the infrared signal of the heat source of the fan heater, so that the controller can directly obtain the information about the heat source output of the fan heater and the heat source of the surrounding environment, and a foundation is provided for the controller to adjust the output heat source of the fan heater in the next step.
In this embodiment, the controller determines whether to continue outputting the heat source or output a larger or smaller heat source according to the heat source information around the fan heater obtained by the infrared sensor and by combining the range data of the heat source output by the fan heater stored in advance, thereby providing a basis for further control of the heat source output.
In this embodiment, because the work rotation area that the heating member of electric fan heater built covers human activity area, namely in someone's scope, the controller can control the heating member to output the heat source, and unmanned area, then the controller control heating member is walked around this regional work, and unmanned area does not have the heat source to output.
Example 2
In this embodiment, the operation process and other components of the positioning system are mainly described.
Specifically, in use, an infrared signal obtained by the infrared sensor is an analog voltage signal output by the infrared sensor.
In this embodiment, the analog signal refers to a signal in which the information parameter appears continuous within a given range. Or in a continuous time interval, the characteristic quantity representing the information may be present as a signal of any value at any instant. In the technical scheme, the voltage signal is transmitted by a traditional analog signal transmission line (such as a telephone network and a cable television network); the obtained signal voltage is continuously changed, and compared with a value at a certain moment, the method is stronger in persuasion and higher in detection accuracy in a large range.
Particularly, an analog voltage signal is adopted, the analog voltage signal can be converted into a digital signal, and then the data processing in the later period of the controller is more convenient.
Further, when the positioning system is used, if the infrared sensor detects that a person exists, the output analog voltage signal is 0.1-5V, the controller automatically converts the received analog voltage signal into a digital signal '1' to judge that the person exists, and the controller records a value corresponding to the current position information of the heating component; and if the infrared sensor cannot detect people, the output analog voltage signal is 0V.
Through the zero and non-zero of the analog voltage signal, the user can intuitively see what region is occupied and no person is occupied, namely, the converted data can directly obtain the effective human body activity region; meanwhile, the range of the analog voltage signal is selected from 0V and 0.1-5V, namely the infrared sensor outputs a voltage signal of 0-5V, the range accords with the signal range of most sensors, and meanwhile, a common controller can process the signal range in the range, so that the selection models of the infrared sensor and the controller are wider.
The infrared signal is converted into a digital signal by the AD conversion module and then sent to the controller; the digital signal is a quantized value reflecting the heat energy intensity of the current object. The quantized value represents a specific numerical value of a digital signal, and the numerical value is obtained by converting the infrared signal through an AD conversion module.
In this embodiment, through AD conversion module for infrared signal direct conversion is digital signal, and then directly obtains the quantization value, and the quantization value is compared in previous infrared signal, and is more directly perceived, and the controller can directly perceived the behavior of current electric fan heater promptly. In the prior art, a computer local area network and a metropolitan area network all use binary digital signals, that is, at present, the binary digital signals and analog signals converted from the digital signals are actually transmitted in the computer wide area network. But more promising are digital signals. The converted digital signal has good application and development prospect, and the control of the fan heater is more convenient.
And further, comparing the heat energy intensity of the current object with a set value of the controller, judging whether the object is a person according to a comparison result, and simultaneously, locking the position information of the heating part of the current warm air blower.
In this embodiment, it is specifically determined whether a person is present, instead of simply detecting based on infrared, the heat intensity of the human body is compared with the value set by the controller, and if the value is greater than or equal to the heat intensity set by the controller, it is determined that the range is occupied; if the value is too small, the result shows that no person is present, and compared with the detection use of an infrared sensor, the accuracy is higher and the accuracy is higher.
In order to improve the use efficiency, in this embodiment, the infrared sensor scans the human body activity in each set period, and the set period is more than 3 min.
In the embodiment, by increasing the set period, when a person moves continuously in a certain time period, the effective movement range can still be locked; meanwhile, when a person leaves at a certain moment, the person can be quickly reflected to leave, the previous warm air blower works to rotate the area, and needs to be adjusted to adapt to a newly detected human body activity area, so that the whole positioning precision is higher, the utilization efficiency of the warm air blower is further improved, less invalid work is generated, and the resource utilization is more reasonable.
Further, actuating mechanism adopts two motors, including the first motor that drives infrared sensor rotation to and the second motor that drives the heater block.
In the technical scheme, the infrared sensor and the heating part are driven to rotate by different motors respectively, so that the problem of large error caused by mutual influence between the two rotating parts and electricity is solved; on the other hand, the infrared sensor is driven to rotate through the independent motor, the rotating range of the infrared sensor can be adjusted according to actual conditions, and then the motor on the heating component can be correspondingly adjusted after the range detected by the infrared sensor is changed.
Further, infrared sensor includes more than two, more than two infrared sensor detect human activity jointly to establish human activity region, human activity region less than or equal to limit rotation range when electric fan heater limit rotated.
In this embodiment, through more than 2 infrared sensor, the human activity range of detection of furthest as far as possible avoids omitting some regions, and simultaneously, more than two infrared sensor work jointly, when one of them had a problem, the other can continue to work, avoids because of infrared sensor breaks down, the unable location problem of whole electric fan heater that causes for among the more than two infrared sensor, one can regard as the other to replace at any time and reserve, the increase of service life.
The invention also discloses a fan heater control method adopting the positioning system, which comprises the following steps:
firstly, the fan heater works for at least one period within the limit rotation range;
step two, acquiring infrared signals of heat sources around the fan heater by the infrared sensor in a period, and sending the detected infrared signals to the controller;
and step three, the controller confirms the human body activity area according to the infrared signal and drives the thermal radiation emitted by the heating part to cover the human body activity area.
Firstly, according to the invention, by acquiring the position of the moving object and establishing the corresponding data of the effective movement range, compared with the prior art that the fan heater can only be switched on or off or manually adjusted in different working states, a foundation is provided for carrying out positioning control on the fan heater through the position of the moving object in the later period, and the position information of the moving object can be timely known through the data, so that the corresponding operation adjustment is carried out.
Secondly, in the invention, the control unit can be effectively adjusted according to the requirement by acquiring the effective movement range, and compared with the traditional mode, the control of the control unit is more comprehensive, not only is the control of one opening, but also the control of the movement range and the area of the whole driving device; the control of the fan heater is more intelligent, and the user experience is stronger.
And compared with the fan heater in the prior art, the fan heater does not need to move within a limit range all the time, so that the whole movement range is efficient, the movement range of the fan heater can be adjusted along with people, the output of ineffective work is reduced, and the use efficiency of the fan heater is improved.
Finally, in the invention, the effective motion range is output, and then the effective motion range can be adjusted at the beginning according to requirements when in use, so that the effective motion range suitable for a user is directly output by the control unit when the user uses the device, and the problems of constant motion range, excessive ineffective work output when a moving object moves, poor user experience and the like are avoided.
In a preferred embodiment of the present invention, the one cycle includes: the fan heater rotates forwards and/or backwards for one circle within the limit rotation range.
In the invention, a cycle is formed by rotating forwards and/or reversely for one circle, so that at least two extreme values can be ensured to be reached respectively, effective selection in an extreme value range is realized, and omission when the extreme values form an effective motion range under certain conditions is avoided.
In the invention, extreme determination can be formed in three ways, namely, positive rotation for one circle; secondly, reversing for one circle; thirdly, the rotation is performed in forward and reverse directions for one circle respectively. The three modes can reach the extreme of a week, different modes can be selected according to the working mode of the fan heater, and various schemes are provided for selecting extreme endpoint values.
Example 3
In this embodiment, the electric heater includes motor, heater block, singlechip (MCU, controller promptly), human infrared sensor and darlington pipe array, and in this embodiment, human infrared sensor specifically includes infrared transmitting sensor and infrared receiving sensor. The human body infrared sensor is connected with a single chip Microcomputer (MCU), the single chip Microcomputer (MCU) is respectively connected with a Darlington tube array and an infrared receiving sensor, the Darlington tube array is connected with a motor, the motor is connected with a heating component, and the infrared transmitting sensor is fixed at a rotation limit position to form a human body positioning electric heater. When motor and singlechip (MCU) were gone up the electricity, the motor can drive the heating part forward rotation and reverse rotation in rotatory extreme position, starts the electric heater, when infrared receiving sensor detected the signal that infrared transmitting sensor sent, confirms that the number of revolutions surely sets for the number of revolutions scope.
When the intelligent mode of the fan heater is started, the infrared sensor starts to detect the infrared signal of the human body. When someone approaches, the human body infrared sensor detects infrared signals, voltage signals of the analog quantity are output and transmitted to the single chip Microcomputer (MCU), the single chip microcomputer quantifies the analog quantity into a certain value (for example, (5OR 10)) through the AD conversion module after receiving the signals, the signals are converted into '1' through whether the single chip microcomputer is in a heating mode, the existence of the person is judged, and the current circle value can be recorded by the single chip microcomputer. When the human body leaves the detection range, the human body infrared sensor outputs a voltage signal of the analog quantity to the single chip Microcomputer (MCU), the single chip microcomputer receives the signal and then can convert the signal into a signal '0' through AD conversion to judge that no human exists, and the single chip microcomputer records the turn number value of the detected human body at last. The rotation range value is converted when the extreme value of the circle number range is reached, and the electric heater can automatically rotate in the detected human body range. And the MCU judges whether the human body continuously exists or not by the analog quantity value converted by the AD again every 5 minutes, and restarts to find the human body if the analog quantity value is detected to be below a certain value.
In this embodiment, the signal of the detected person needs to be converted into digital quantity by AD conversion, and then compared with the set value of the MCU to determine whether the person exists.
For example, the range of the number of turns of the motor is (0-100), the range of the limit of the fan heater working is (0-100) when the fan heater working is detected, and the range of the limit is consistent with the number of turns; or within the range of (0-100), specifically, the limit range of the preliminary detection of the work of the fan heater is (20-80), and after the infrared sensor is added, when a person exists, the detected turn number range is (41-43), namely, when the turn number reaches 41, the single chip microcomputer detects a human body, starts to record the turn number value, no human body is detected after the turn number 43, the last turn number value is 43, after the infrared sensor signal is received when the turn number reaches 80, the analog quantity is quantized to be '10', namely, when the fan heater is not in the heating mode currently, the fan heater is judged to be '1', one of the limits of the turn number range is 80, the rotation stop value of the heating component is set to be 43, the turn number is decreased from 80, when the turn number reaches 41, the rotation start value is recorded finally, when the turn number reaches 20, the analog quantity is quantized to be '10', and the fan heater is not in the, a "1" is judged, one of the limits of the range of laps is 20 and the laps are incremented from 20. Stopping starting reverse rotation when the number of turns is continuously increased to 43, decreasing the number of turns, starting forward rotation when the number of turns is increased to 41, starting a heating mode, increasing the number of turns, and rotating back and forth. And detecting the quantized value of the analog quantity of the infrared sensor every 5 minutes, if the quantized value is 5or more, judging that a person exists, and continuously keeping the current circle value. Otherwise, the circle value is reset to 0 and 100, the person is found again, and the cold air blowing is started.
In this embodiment, the step of searching for a person is performed again after the set time is increased (for example, 5min), so that multiple times of cyclic adjustment are realized to adapt to different human body activity areas in different time periods, and the use efficiency of the fan heater is greatly improved.
Example 4
In this embodiment, the electric fan heater includes motor, heater block and singlechip (MCU), a plurality of human infrared sensor combination, darlington pipe array. The human body infrared sensor is connected with the single chip Microcomputer (MCU), the single chip Microcomputer (MCU) is connected with the Darlington tube array, the Darlington tube array is connected with the motor, the motor is connected with the heating component to form a human body positioning warm air blower, and the human body infrared sensor is connected with the motor. In the use, when motor and singlechip (MCU) go up the electricity, motor (rotating electrical machines) can drive heating part forward rotation and reverse rotation at the number of turns within range according to the number of turns scope that the singlechip set up, starts the electric heater, and infrared sensor is also in the forward rotation under another motor (infrared electric machines) control. Compared with the embodiment 3, in the embodiment, the infrared sensor is driven by the motor to rotate; meanwhile, two motors are provided, one is a first motor for driving the infrared sensor to rotate, the other is a second motor for driving the heating component, and the rotating angle of the second motor determines the rotating range value according to the number of rotating turns of the first motor (the infrared motor).
Example 5
In this embodiment, the electric heater includes motor, heater block, singlechip (MCU), a plurality of human infrared sensor combination, darlington pipe array. Human infrared sensor and ware singlechip (MCU), singlechip (MCU) by with darlington pipe array connection, darlington pipe array is connected with the motor, the heater block is connected to the motor, constitutes human location electric heater, two human infrared sensors have certain contained angle. When motor and singlechip (MCU) go up the electricity, the motor can drive heating part forward rotation and reverse rotation at the number of turns within range according to the number of turns scope that the singlechip set up, starts the electric heater.
The difference with the above scheme is that more than two infrared sensors in this embodiment have a certain included angle, and then more than two infrared sensors are located at different positions, so as to realize the positioning of infrared sensors in different range areas, so as to expand the detection range.
Referring to fig. 2, a positioning control method of a warm air blower in the present invention is specifically that the warm air blower acquires a position of a moving object and simultaneously establishes data of an effective movement range, and the warm air blower works in the effective movement range in a working state;
the effective movement range is less than or equal to the limit rotation range of the fan heater during limit rotation;
the effective movement range is that the heat emitted by the warm air blower in the working state can completely cover the moving object.
Firstly, according to the invention, by acquiring the position of the moving object and establishing the corresponding data of the effective movement range, compared with the prior art that the fan heater can only be switched on or off or manually adjusted in different working states, a foundation is provided for carrying out positioning control on the fan heater through the position of the moving object in the later period, and the position information of the moving object can be timely known through the data, so that the corresponding operation adjustment is carried out.
Secondly, in the invention, the control unit can be effectively adjusted according to the requirement by acquiring the effective movement range, and compared with the traditional mode, the control of the control unit is more comprehensive, not only is the control of one opening, but also the control of the movement range and the area of the whole driving device; the control of the fan heater is more intelligent, and the user experience is stronger.
And compared with the fan heater in the prior art, the fan heater does not need to move within a limit range all the time, so that the whole movement range is efficient, the movement range of the fan heater can be adjusted along with people, the output of ineffective work is reduced, and the use efficiency of the fan heater is improved.
Finally, in the invention, the effective motion range is output, and then the effective motion range can be adjusted at the beginning according to requirements when in use, so that the effective motion range suitable for a user is directly output by the control unit when the user uses the device, and the problems of constant motion range, excessive ineffective work output when a moving object moves, poor user experience and the like are avoided.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A positioning system of a warm air blower comprises an actuating mechanism and a heating component, wherein the actuating mechanism drives the heating component to rotate,
the infrared sensor is used for acquiring infrared signals of heat sources around the fan heater and sending the detected infrared signals to the controller;
the controller locks the position information of the heating part of the heater unit according to the received infrared signal, and the controller constructs a working rotation area of the heater unit according to the position information of the heating part;
the warm air blower work rotation area covers the human body movement area detected by the infrared sensor, and in the warm air blower work rotation area, the actuating mechanism drives the heating part to rotate in the forward direction and the reverse direction.
2. The positioning system of a fan heater according to claim 1, wherein the infrared signal is an analog voltage signal outputted from the infrared sensor.
3. The positioning system of the warm air blower according to claim 2, wherein if the infrared sensor detects a person, the output analog voltage signal is a value other than 0, specifically 0.1-10V, the controller automatically converts the received analog voltage signal into a digital signal "1" to determine that the person is present, and the controller records a value corresponding to the current position information of the heating member; and if the infrared sensor cannot detect people, the output analog voltage signal is 0V.
4. The positioning system of the warm air blower according to claim 1, further comprising an AD conversion module, wherein the infrared signal is converted into a digital signal by the AD conversion module and then sent to the controller; the digital signal is a quantized value reflecting the heat energy intensity of the current object.
5. The positioning system of the fan heater according to claim 4, wherein the intensity of the heat energy of the current object is compared with the set value of the controller, and the comparison result is used to determine whether the person is a person, and simultaneously whether the position information of the current fan heater is locked.
6. The positioning system of the warm-air drier according to any one of the claims 1 to 5, wherein the infrared sensor scans the human body movement in each set period, and the set period is more than 3 min.
7. The positioning system of a fan heater according to claim 1, wherein the actuator comprises two motors, including a first motor for driving the infrared sensor to rotate and a second motor for driving the heating element.
8. The positioning system of the warm air blower according to claim 1, wherein the infrared sensors comprise more than two infrared sensors, the more than two infrared sensors jointly detect human body activity and construct a human body activity area, and the human body activity area is smaller than or equal to a limit rotation range of the warm air blower during limit rotation.
9. A fan heater control method using the positioning system according to claims 1-8, comprising:
firstly, the fan heater works for at least one period within the limit rotation range;
step two, acquiring infrared signals of heat sources around the fan heater by the infrared sensor in a period, and sending the detected infrared signals to the controller;
and step three, the controller confirms the human body activity area according to the infrared signal and drives the thermal radiation emitted by the heating part to cover the human body activity area.
10. The fan heater control method according to claim 9, wherein the one cycle includes: the fan heater rotates forwards and/or backwards for one circle within the limit rotation range.
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| CN201911322012.5A CN113009936A (en) | 2019-12-20 | 2019-12-20 | Positioning system and positioning control method of fan heater |
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