CN216349153U - Human body pyroelectric infrared induction circuit, human body infrared induction device and air conditioner - Google Patents
Human body pyroelectric infrared induction circuit, human body infrared induction device and air conditioner Download PDFInfo
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- CN216349153U CN216349153U CN202122825591.4U CN202122825591U CN216349153U CN 216349153 U CN216349153 U CN 216349153U CN 202122825591 U CN202122825591 U CN 202122825591U CN 216349153 U CN216349153 U CN 216349153U
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Abstract
The utility model discloses a human body pyroelectric infrared sensing circuit, a human body infrared sensing device and an air conditioner, wherein the human body pyroelectric infrared sensing circuit comprises an LDO (low dropout regulator) voltage-stabilized power supply, an infrared signal acquisition circuit, a signal processing circuit and a communication circuit; the signal of the infrared signal acquisition circuit is used for acquiring a human body pyroelectric infrared signal and outputting a human body detection signal; the signal processing circuit is used for receiving the human body detection signal output by the infrared signal acquisition circuit and generating an air conditioner air outlet angle control signal and an air conditioner air outlet speed signal according to the human body detection signal; the communication circuit is used for outputting the air conditioner air outlet angle control signal and the air conditioner air outlet speed signal output by the signal processing circuit to the air conditioner so as to control the air outlet angle of the air conditioner to deviate from the position of a human body and reduce the air outlet speed of the air conditioner. The utility model realizes the direct blowing prevention of the air conditioner at low cost.
Description
Technical Field
The utility model relates to the technical field of air conditioners, in particular to a human body pyroelectric infrared induction circuit, a human body infrared induction device and an air conditioner.
Background
Air conditioners have long become one of the essential appliances for homes. At present, the swing range of an air outlet of a common air conditioner on the market is determined by the swing mode of an air outlet plate of the air conditioner, and the air outlet direction of the air conditioner can be adjusted only by adjusting the left and right swing or the up and down swing of the air outlet plate through a remote controller, so that the air outlet direction is too single.
In practical use, the child who moves back often can receive air conditioner cold wind directly to blow, and cold wind is difficult to avoid can making child catch the cold, or the infant is directly blown by cold wind at night and catches a cold, has aroused discontented of a lot of users, and it is very expensive to purchase the air conditioner that has intelligence such as radars to prevent directly blowing, consequently, most still are the less ordinary air conditioner of use cost, so, how to realize preventing directly blowing on ordinary air conditioner is the problem of treating urgently.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a human body pyroelectric infrared induction circuit, aiming at realizing the direct blowing prevention of an air conditioner at low cost.
In order to achieve the above object, the present invention provides a human body pyroelectric infrared sensing circuit, which is used in an air conditioner, and comprises:
the infrared signal acquisition circuit is used for acquiring human body pyroelectric infrared signals and outputting human body detection signals;
the signal processing circuit is connected with the signal output end of the infrared signal acquisition circuit and is used for receiving the human body detection signal output by the infrared signal acquisition circuit and generating an air conditioner air outlet angle control signal and an air conditioner air outlet speed signal according to the human body detection signal;
the input end of the communication circuit is connected with the signal output end of the signal processing circuit, the output end of the communication circuit is used for being connected with an air conditioner, and the communication circuit is used for outputting an air conditioner air outlet angle control signal and an air conditioner air outlet speed signal which are output by the signal processing circuit to the air conditioner, so that the air conditioner can adjust the air outlet angle to deviate from the position of a human body and reduce the air outlet speed;
the input end of the LDO stabilized voltage supply is used for being connected with a direct current power supply, and the output end of the LDO stabilized voltage supply is respectively and electrically connected with the power supply end of the infrared signal acquisition circuit, the power supply end of the signal processing circuit and the power supply end of the communication circuit.
Optionally, the LDO regulated power supply includes a positive power input terminal, a negative power input terminal, an LDO regulator chip, a first capacitor, a second capacitor, and a third capacitor;
the input of LDO regulator chip respectively with the positive input end of power, the first end of first electric capacity and the first end interconnection of second electric capacity, the output of LDO regulator chip does the output of LDO constant voltage power supply, the output of LDO regulator chip with the first end interconnection of third electric capacity, the earthing terminal of LDO regulator chip respectively with power negative pole input end, the second end of first electric capacity the second end of second electric capacity the second end of third electric capacity links to each other with ground.
Optionally, the infrared signal acquisition circuit is a pyroelectric infrared sensor;
the input end of the pyroelectric infrared sensor is connected with the output end of the LDO stabilized voltage supply and the grounding end of the pyroelectric infrared sensor respectively, the input end of the pyroelectric infrared sensor is the power supply end of an infrared signal acquisition circuit, the output end of the pyroelectric infrared sensor is the signal output end of the infrared signal acquisition circuit, and the grounding end of the pyroelectric infrared sensor is grounded.
Optionally, the signal processing circuit includes a controller and a fourth capacitor;
the controller has power foot, signal input foot, ground connection foot and signal output foot, the power foot of controller with the output of LDO constant voltage power supply the first end of fourth electric capacity links to each other respectively, the signal input foot of controller does signal processing circuit's signal input part with infrared signal acquisition circuit's signal output part links to each other, the signal output foot of controller does signal processing circuit's signal output part, the ground connection foot of controller with the second end of fourth electric capacity links to each other respectively with ground.
Optionally, the controller is an MCU.
Optionally, the communication circuit comprises a communication interface;
the communication interface is provided with a power supply pin, a signal input pin and a grounding pin, the grounding pin of the communication interface is grounded, the signal input pin of the communication interface is the signal input end of the communication circuit, and the power supply pin of the communication interface is interconnected with the output end of the LDO stabilized voltage supply.
In order to achieve the above object, the present invention further provides a human body infrared sensing device, which is used for an air conditioner, and comprises a storage battery and the human body pyroelectric infrared sensing circuit, wherein the human body pyroelectric infrared sensing circuit is electrically connected with the storage battery, and the communication circuit comprises a first wireless communication module for wireless communication connection with the air conditioner.
In addition, the utility model also provides an air conditioner which comprises an electric control device and the human body pyroelectric infrared sensing circuit, wherein the output end of the human body pyroelectric infrared sensing circuit is connected with the electric control device, or the air conditioner comprises the electric control device and the human body infrared sensing circuit, and the electric control device is provided with a second wireless communication module used for wirelessly communicating with the first wireless communication module.
Optionally, the air conditioner includes a main body, a first suction device is arranged on the main body, a second suction device is arranged on the human body infrared sensing device, and the second suction device is connected with the first suction device in a suction manner.
According to the utility model, the human body pyroelectric infrared sensor is arranged to collect infrared energy radiated by human bodies at different angles, and corresponding human body detection signals are output to the controller, so that the controller outputs corresponding control signals to the communication circuit according to the human body infrared radiation signals collected by the pyroelectric infrared sensor, the communication circuit transmits the control signals to the air conditioner, and the air outlet angle of the air outlet plate of the air conditioner deviates from the position of the human body, so that the air conditioner can avoid blowing of the human body.
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 structures shown in the drawings without creative efforts.
FIG. 1 is a functional block diagram of a human pyroelectric infrared sensing circuit according to an embodiment of the present invention;
FIG. 2 is a schematic circuit diagram of an LDO voltage regulator according to an embodiment of the pyroelectric infrared sensing circuit of the present invention;
FIG. 3 is a schematic circuit diagram of an embodiment of a human pyroelectric infrared sensing circuit according to the present invention;
fig. 4 is a schematic structural diagram of an embodiment of the human body infrared sensing device of the utility model.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) | |
| 10 | Human body pyroelectric |
31 | |
|
| 11 | LDO voltage-stabilized power supply | U1 | LDO |
|
| 12 | Infrared signal acquisition | U2 | Controller | |
| 13 | Signal processing circuit | | Communication interface | |
| 14 | Communication circuit | PIR | Pyroelectric |
|
| 20 | Human body infrared induction device | C1～C4 | First to fourth capacitors |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a human body pyroelectric infrared induction circuit 10 which is suitable for an air conditioner.
Referring to fig. 1, in an embodiment, a human pyroelectric infrared sensing circuit 10 provided by the present invention includes: LDO constant voltage power supply 11, infrared signal acquisition circuit 12, signal processing circuit 13 and communication circuit 14.
The output end of the LDO stabilized voltage supply 11 is respectively electrically connected with the power end of the infrared signal acquisition circuit 12, the power end of the signal processing circuit 13 and the power end of the communication circuit 14, the signal output end of the infrared signal acquisition circuit 12 is interconnected with the signal input end of the signal processing circuit 13, the signal output end of the signal processing circuit 13 is connected with the input end of the communication circuit 14, and the output end of the communication circuit 14 is used for being connected with an air conditioner.
In this embodiment, the LDO regulated power supply 11 is configured to provide a stable voltage to the entire human pyroelectric infrared sensing circuit 10; the infrared signal acquisition circuit 12 is used for acquiring human body pyroelectric infrared signals and outputting human body detection signals; the signal processing circuit 13 is used for receiving the human body detection signal output by the infrared signal acquisition circuit 12 and generating an air conditioner air outlet angle control signal and an air conditioner air outlet speed signal according to the human body detection signal; the communication circuit 14 is used for outputting an air conditioner air outlet angle control signal and an air conditioner air outlet speed signal which are output by the signal processing circuit 13 to the air conditioner, the infrared signal acquisition circuit 12 can detect an infrared signal radiated by a human body in a space and output a human body detection signal to the signal processing circuit 13, the signal processing circuit 13 determines the position of the human body in the space according to the human body detection signal, so that the air outlet angle of an air outlet plate of the air conditioner deviates from the position of the human body, the air conditioner can avoid blowing of the human body, and the human body pyroelectric infrared sensing circuit 10 is lower in cost compared with a radar sensor as a whole, so that the direct blowing prevention of the air conditioner is realized at lower cost.
Referring to fig. 2, in an embodiment, the LDO regulated power supply 11 includes a positive power input terminal Vin +, a negative power input terminal Vin-, an LDO regulator chip U1, a first capacitor C1, a second capacitor C2, and a third capacitor C3;
the output end of the LDO regulator chip U1 is the output end of the LDO regulator 11, the output end of the LDO regulator chip U1 is interconnected with the first end of the third capacitor C3, the input end of the LDO regulator chip U1 is interconnected with the positive power input terminal Vin +, the first end of the first capacitor C1 and the first end of the second capacitor C2, respectively, the ground end of the LDO regulator chip U1 is connected with the negative power input terminal Vin-, the second end of the first capacitor C1, the second end of the second capacitor C2 and the second end of the third capacitor C3, respectively, and to ground.
In this embodiment, the input end of the LDO regulated power supply 11 is connected to the positive electrode and the negative electrode of the dc power supply, the first capacitor C1, the second capacitor C2, and the third capacitor C3 are voltage stabilizing devices, and play a role of filtering, and when the external input voltage suddenly increases or decreases, the voltage at both ends of the capacitor is maintained at a stable value through charging and discharging; the output end of the LDO stabilized voltage power supply 11 provides a stable voltage of 2.5V-3.3V for the infrared signal acquisition circuit 12, the signal processing circuit 13 and the communication circuit 14, and the LDO stabilized voltage power supply 11 carries out voltage stabilization processing on the input voltage of a direct current power supply and can stably supply power for a subsequent working circuit, so that an internal circuit of the air conditioner can stably work.
Referring to fig. 2 and 3, in an embodiment, the signal acquisition circuit 12 includes a pyroelectric infrared sensor PIR, an input end D of the pyroelectric infrared sensor PIR is connected to the output end of the LDO regulated power supply 11 and a ground end G of the pyroelectric infrared sensor PIR, respectively, an output end S of the pyroelectric infrared sensor PIR is a signal output end of the infrared signal acquisition circuit 12, and the ground end G of the pyroelectric infrared sensor PIR is grounded.
In this embodiment, the pyroelectric infrared sensor PIR is configured to collect infrared energy radiated by different angles of a human body, and output collected infrared radiation signals to the signal processing circuit 13. Because pyroelectric infrared sensor PIR can gather the infrared signal of human radiation in real time to the air-out angle that makes the air-out board of air conditioner can change the air-out direction according to the removal of human in the space at any time, realizes preventing directly blowing the effect in real time to the human body.
Referring to fig. 2 and 3, in an embodiment, the signal processing circuit 13 includes a controller U2 and a fourth capacitor C4, the controller U2 has a power pin 1, a signal input pin 2, a ground pin 8 and a signal output pin 7, the power pin 1 is connected to the output terminal of the LDO regulated power supply 11 and the first terminal of the fourth capacitor C1, the signal input pin 2 of the controller U2 is connected to the signal input terminal of the signal processing circuit 13 and the signal output terminal of the infrared signal acquisition circuit 12, the signal output pin 7 of the controller U2 is the signal output terminal of the signal processing circuit 13, and the ground pin 8 of the controller U2 is connected to the second terminal of the fourth capacitor C4 and ground, respectively.
In this embodiment, the controller U2 is an MCU, a single chip microcomputer, or other programmable logic device.
Specifically, controller U2 is the control part, controller U2 will human infrared radiation signal that infrared signal acquisition circuit 12 output handles, confirms the specific position in human place space, and then exports corresponding control signal to the air conditioner according to the specific position in human place space to make the air conditioner reduce the wind speed and adjust the air-out angle according to the position, avoid directly blowing the people.
Referring to fig. 2 and 3, in an embodiment, the communication circuit 14 includes a communication interface U3, the communication interface U3 has a power pin 3, a signal input pin 2 and a ground pin 1, the ground pin 1 of the communication interface U3 is grounded, the signal input pin 2 of the communication interface U3 is a signal input end of the communication circuit 14, and the power pin 3 of the communication interface U3 is interconnected with an output end of the LDO regulated power supply 11.
In this embodiment, the communication circuit 14 outputs the control signal corresponding to the air-out angle and the air-out speed of the air conditioner, which is output by the signal processing circuit 13, to the air conditioner, and controls the angle of the air-out plate of the air conditioner and the air-out speed of the air conditioner, so that the air-out angle of the air conditioner avoids the position of the human body in real time, and the air-out speed is adjusted according to the position of the human body.
The utility model also provides a human body infrared induction device 20 which is suitable for an air conditioner.
Referring to fig. 4, in an embodiment, the human body infrared sensing device 20 provided by the present invention includes the human body pyroelectric infrared sensing circuit 10, and the communication circuit 14 includes a first wireless communication module for wirelessly communicating with an air conditioner.
In this embodiment, the configurable storage battery is electrically connected to the human body pyroelectric infrared sensing circuit 10 to supply power to the human body pyroelectric infrared sensing circuit 10, or the configurable storage battery is electrically connected to the human body pyroelectric infrared sensing circuit 10 through a power interface and connected to an internal power supply of the air conditioner through the power interface to supply power to the human body pyroelectric infrared sensing circuit 10. The power supply provided by the storage battery or the air conditioner converts the power supply voltage into a stable voltage source by the voltage stabilizing circuit 11, and provides stable voltage for the infrared signal acquisition circuit 12, the signal processing circuit 13 and the communication circuit 14 in the human body infrared induction device 20; the communication circuit 14 has a wireless communication function, and can output the air conditioner air outlet plate direction control signal and the air outlet speed control signal output by the signal processing circuit 13 in a wireless transmission mode.
It should be noted that, the detailed structure of the human body pyroelectric infrared sensing circuit 10 can refer to the above embodiments, and is not described herein again; it can be understood that, because the human body pyroelectric infrared sensing circuit 10 is used in the human body infrared sensing device 20 of the present invention, the embodiment of the human body infrared sensing device 20 of the present invention includes all technical solutions of all embodiments of the human body pyroelectric infrared sensing circuit 10, and the achieved technical effects are also completely the same, and are not described herein again.
Further, the human body infrared sensing device 20 can be mounted on the outer side of the air conditioner in a manner of pasting, magnetic attraction, hooking and the like, so as to supplement accessories for the air conditioner and increase the human body infrared detection function of the air conditioner.
Specifically, the air conditioner includes the main part, is provided with first absorption spare on the main part, is provided with the second on the human infrared induction system 20 and adsorbs the piece, the second adsorbs the piece and adsorbs the connection with first absorption spare.
The utility model also provides an air conditioner.
Referring to fig. 1, in an embodiment, the air conditioner includes an electric control device 31 and the human body pyroelectric infrared sensing circuit 10 as described above, and an output end of the human body pyroelectric infrared sensing circuit 10 is connected to the electric control device 31.
In this embodiment, the human body pyroelectric infrared sensing circuit 10 is a circuit disposed inside the air conditioner, and the human body pyroelectric infrared sensing circuit 10 is connected to the air conditioner by wire; the communication circuit 14 directly outputs the air conditioner air outlet plate direction control signal and the air outlet speed control signal output by the signal processing circuit 13 to the electric control device 31 through wired connection, so as to control the air outlet plate air outlet direction and the air outlet speed of the air conditioner.
It should be noted that, the detailed structure of the human body infrared sensing device 20 can refer to the above embodiments, and is not described herein again; it can be understood that, because the human body infrared sensing device 20 is used in the air conditioner of the present invention, the embodiment of the air conditioner of the present invention includes all technical solutions of all embodiments of the human body infrared sensing device 20, and the achieved technical effects are also completely the same, and are not described herein again.
Referring to fig. 4 in combination with fig. 1, in another embodiment, the air conditioner includes an electric control device 31 and the human body infrared sensing device 20, and the electric control device 31 has a second wireless communication module for wirelessly communicating with the first wireless communication module.
The detailed structure of the human body infrared sensing device 20 can refer to the above embodiments, and is not described herein; it can be understood that, because the human body infrared sensing device 20 is used in the air conditioner of the present invention, the embodiment of the air conditioner of the present invention includes all technical solutions of all embodiments of the human body infrared sensing device 20, and the achieved technical effects are also completely the same, and are not described herein again.
Therefore, the air conditioner can sense the position of a human body in a room in a certain range through the human body pyroelectric infrared sensor PIR, the human body detection signal is output to the controller U2 through the infrared signal acquisition circuit 12, the controller U2 in the air conditioner judges the position of the human body in the space according to the received human body detection signal, and outputs an air outlet plate swing angle control signal and an air outlet speed control signal of the air conditioner according to the judged position signal to control the air conditioning plate to work, and the output signal controls the air conditioner to swing vertically, left and right to be automatically opened, so that the air conditioner is prevented from being directly blown in the same direction.
The above description is only for the alternative embodiments of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A human body pyroelectric infrared induction circuit is used for an air conditioner and is characterized by comprising:
the infrared signal acquisition circuit is used for acquiring human body pyroelectric infrared signals and outputting human body detection signals;
the signal processing circuit is connected with the signal output end of the infrared signal acquisition circuit and is used for receiving the human body detection signal output by the infrared signal acquisition circuit and generating an air conditioner air outlet angle control signal and an air conditioner air outlet speed signal according to the human body detection signal;
the input end of the communication circuit is connected with the signal output end of the signal processing circuit, the output end of the communication circuit is used for being connected with an air conditioner, and the communication circuit is used for outputting an air conditioner air outlet angle control signal and an air conditioner air outlet speed signal which are output by the signal processing circuit to the air conditioner, so that the air conditioner can adjust the air outlet angle to deviate from the position of a human body and reduce the air outlet speed;
the input end of the LDO stabilized voltage supply is used for being connected with a direct current power supply, and the output end of the LDO stabilized voltage supply is respectively and electrically connected with the power supply end of the infrared signal acquisition circuit, the power supply end of the signal processing circuit and the power supply end of the communication circuit.
2. The human body pyroelectric infrared sensing circuit of claim 1, wherein the LDO stabilized voltage power supply comprises a power supply positive input end, a power supply negative input end, an LDO voltage stabilization chip, a first capacitor, a second capacitor and a third capacitor;
the input of LDO regulator chip respectively with the positive input end of power, the first end of first electric capacity and the first end interconnection of second electric capacity, the output of LDO regulator chip does the output of LDO constant voltage power supply, the output of LDO regulator chip with the first end interconnection of third electric capacity, the earthing terminal of LDO regulator chip respectively with power negative pole input end, the second end of first electric capacity the second end of second electric capacity the second end of third electric capacity links to each other with ground.
3. The human body pyroelectric infrared sensing circuit as recited in claim 1, wherein said infrared signal acquisition circuit is a pyroelectric infrared sensor;
the input end of the pyroelectric infrared sensor is connected with the output end of the LDO stabilized voltage supply and the grounding end of the pyroelectric infrared sensor respectively, the input end of the pyroelectric infrared sensor is the power supply end of an infrared signal acquisition circuit, the output end of the pyroelectric infrared sensor is the signal output end of the infrared signal acquisition circuit, and the grounding end of the pyroelectric infrared sensor is grounded.
4. The human body pyroelectric infrared sensing circuit as recited in claim 1, wherein said signal processing circuit comprises a controller and a fourth capacitor;
the controller has power foot, signal input foot, ground connection foot and signal output foot, the power foot of controller with the output of LDO constant voltage power supply the first end of fourth electric capacity links to each other respectively, the signal input foot of controller does signal processing circuit's signal input part with infrared signal acquisition circuit's signal output part links to each other, the signal output foot of controller does signal processing circuit's signal output part, the ground connection foot of controller with the second end of fourth electric capacity links to each other respectively with ground.
5. The human body pyroelectric infrared sensing circuit as recited in claim 4, wherein said controller is MCU.
6. The human body pyroelectric infrared sensing circuit as recited in claim 1, wherein the communication circuit comprises a communication interface, the communication interface has a power pin, a signal input pin and a ground pin, the ground pin of the communication interface is grounded, the signal input pin of the communication interface is a signal input end of the communication circuit, and the power pin of the communication interface is interconnected with an output end of the LDO regulated power supply.
7. A human body infrared sensing device is used for an air conditioner and is characterized by comprising a storage battery and a human body pyroelectric infrared sensing circuit according to any one of claims 1 to 6, wherein the human body pyroelectric infrared sensing circuit is electrically connected with the storage battery, and the communication circuit comprises a first wireless communication module which is used for being in wireless communication connection with the air conditioner.
8. An air conditioner, characterized in that, the air conditioner includes an electric control device and the human body pyroelectric infrared induction circuit of any one of claims 1 to 6, the output end of the human body pyroelectric infrared induction circuit is connected with the electric control device end, or the air conditioner includes an electric control device and the human body infrared induction circuit of claim 7, the electric control device has a second wireless communication module for wireless communication with the first wireless communication module.
9. The air conditioner as claimed in claim 8, wherein the air conditioner includes a main body, a first suction member is provided on the main body, a second suction member is provided on the human body infrared sensing device, and the second suction member is suction-connected to the first suction member.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117782379A (en) * | 2024-02-27 | 2024-03-29 | 太原理工大学 | Piezoelectric/pyroelectric dual-function flexible high-temperature-resistant sensor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117782379A (en) * | 2024-02-27 | 2024-03-29 | 太原理工大学 | Piezoelectric/pyroelectric dual-function flexible high-temperature-resistant sensor |
| CN117782379B (en) * | 2024-02-27 | 2024-05-14 | 太原理工大学 | Piezoelectric/pyroelectric dual-function flexible high-temperature-resistant sensor |
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