CN219417761U - Infrared emission tube detection circuit and system - Google Patents
Infrared emission tube detection circuit and system Download PDFInfo
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- CN219417761U CN219417761U CN202320170310.2U CN202320170310U CN219417761U CN 219417761 U CN219417761 U CN 219417761U CN 202320170310 U CN202320170310 U CN 202320170310U CN 219417761 U CN219417761 U CN 219417761U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model relates to the technical field of automatic control systems, and mainly provides an infrared emission tube detection circuit and an infrared emission tube detection system, wherein the infrared emission tube detection circuit comprises a voltage division module, a control module and a connection module; the first end of the voltage dividing module is connected with the voltage detection end of the singlechip, the second end of the voltage dividing module is connected with the first end of the connecting module, the third end of the voltage dividing module is connected with the power supply, the second end of the connecting module is connected with the first end of the control module, the control end of the control module is connected with the signal output end of the singlechip, and the connecting module is further used for connecting an infrared transmitting tube. The control module is used for receiving a control signal output by the signal output end of the singlechip, when the control module is in a conducting state according to the control signal, the voltage dividing module acquires the voltage of the connecting module in real time and outputs the conducting voltage to the voltage detection end of the singlechip based on the voltage, and based on the voltage, the singlechip can judge whether the connecting module is connected with the infrared transmitting tube or not through the conducting voltage received by the voltage detection end.
Description
[ field of technology ]
The utility model relates to the technical field of automatic control systems, in particular to an infrared emission tube detection circuit and an infrared emission tube detection system.
[ background Art ]
With the development of technology, more and more electronic products have an infrared remote control function, and among electronic devices, an infrared emitting tube is one of important devices. However, since the infrared emitting tube is designed independently, in practical application, it is necessary to determine whether the infrared emitting tube is inserted. In the prior art, most infrared emission circuits do not have a feedback circuit, so that whether an infrared emission tube is inserted cannot be judged.
[ utility model ]
The embodiment of the utility model provides an infrared emission tube detection circuit and an infrared emission tube detection system, which aim to solve the technical problem that an infrared emission circuit in the prior art cannot detect whether an infrared emission tube is inserted or not.
In order to solve the technical problems, one technical scheme adopted by the embodiment of the utility model is as follows: the infrared emission tube detection circuit comprises a voltage division module, a control module and a connection module; the first end of the voltage dividing module is connected with the voltage detection end of the singlechip, the second end of the voltage dividing module is connected with the first end of the connecting module, the third end of the voltage dividing module is connected with a power supply, the second end of the connecting module is connected with the first end of the control module, the control end of the control module is connected with the signal output end of the singlechip, the second end of the control module is connected with the grounding end, and the connecting module is also used for connecting an infrared emission tube; the control module is used for receiving a control signal output by the signal output end of the singlechip, when the control module is in a conducting state according to the control signal, the voltage dividing module acquires the voltage of the connecting module in real time and outputs a conducting voltage to the voltage detection end of the singlechip based on the voltage, so that the singlechip judges whether the connecting module is connected with an infrared transmitting tube or not according to the conducting voltage.
Optionally, the voltage division module includes a first voltage division unit and a resistor R1; the first end of the resistor R1 is connected with the power supply, the second end of the resistor R1 is connected with the first end of the first voltage dividing unit and the first end of the connecting module respectively, the second end of the first voltage dividing unit is connected with the voltage detection end of the singlechip, and the third end of the first voltage dividing unit is connected with the grounding end.
Optionally, the first voltage dividing unit includes a resistor R2 and a resistor R3; the first end of the resistor R2 is connected with the first end of the connecting module, the second end of the resistor R2 is connected with the voltage detection end of the singlechip, and the second end of the resistor R2 is grounded through the resistor R3.
Optionally, the control module includes a second voltage division unit and a switching tube Q1; the first end of the switching tube Q1 is connected with the second end of the connecting module, the control end of the switching tube Q1 is connected with the second end of the second voltage dividing unit, the third end of the switching tube Q1 is connected with the grounding end, the first end of the second voltage dividing unit is connected with the signal output end of the singlechip, and the third end of the second voltage dividing module is connected with the grounding end.
Optionally, the second voltage division unit includes a resistor R4 and a resistor R5; the first end of the resistor R4 is connected with the signal output end of the singlechip, the second end of the resistor R4 is connected with the control end of the switch tube Q1, and the resistor R4 is grounded through the resistor R5.
Optionally, the connection module is an infrared transmitting tube socket.
Optionally, the voltage dividing module further includes a capacitor C1; the first end of the capacitor C1 is connected with the second end of the resistor R2, and the second end of the capacitor C1 is connected with the ground terminal.
In order to solve the technical problems, another technical scheme adopted by the embodiment of the utility model is as follows: there is provided an infrared emission tube detection system comprising: a single chip microcomputer; a power supply; and an infrared emitter detection circuit as described above.
Different from the situation of the related art, the embodiment of the utility model provides an infrared emission tube detection circuit and a system, which mainly comprise a voltage division module, a control module and a connection module; the first end of the voltage dividing module is connected with the voltage detection end of the single chip microcomputer, the second end of the voltage dividing module is connected with the first end of the connecting module, the third end of the voltage dividing module is connected with the power supply, the second end of the connecting module is connected with the first end of the control module, the control end of the control module is connected with the signal output end of the single chip microcomputer, the second end of the control module is connected with the grounding end, and the connecting module is further used for connecting an infrared transmitting tube. The control module is used for receiving a control signal output by the signal output end of the singlechip, when the control module is in a conducting state according to the control signal, the voltage dividing module acquires the voltage of the connecting module in real time and outputs a conducting voltage to the voltage detection end of the singlechip based on the voltage, and based on the voltage, the singlechip can judge whether the connecting module is connected with the infrared transmitting tube or not through the conducting voltage received by the voltage detection end.
[ description of the drawings ]
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to scale, unless expressly stated otherwise.
FIG. 1 is a block diagram of an infrared emission tube detection system according to an embodiment of the present utility model;
FIG. 2 is a block diagram of an infrared emission tube detection circuit according to an embodiment of the present utility model;
FIG. 3 is a circuit diagram of an infrared emitter detection circuit provided by an embodiment of the present utility model;
fig. 4 is a circuit diagram of an infrared emitter detection circuit according to another embodiment of the present utility model.
[ detailed description ] of the utility model
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It should be noted that, if not in conflict, the features of the embodiments of the present utility model may be combined with each other, which are all within the protection scope of the present utility model. In addition, although the division of the functional modules is performed in the apparatus schematic, in some cases, the division of the modules may be different from that in the apparatus schematic.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.
In addition, the technical features mentioned in the different embodiments of the utility model described below can be combined with one another as long as they do not conflict with one another.
Referring to fig. 1, fig. 1 is a block diagram of an infrared emission tube detection system according to an embodiment of the present utility model, and as shown in fig. 1, an infrared emission tube detection system 100 includes a single chip microcomputer 10, a power supply 20, and an infrared emission tube detection circuit 30. The singlechip 10 is connected with the infrared emission tube detection circuit 30, the power supply 20 is used for providing electric energy for the infrared emission tube detection circuit 30, the infrared emission tube detection circuit 30 is used for detecting whether an infrared emission tube is connected in the circuit or not, and sending a detection result to the singlechip 10, so that the singlechip 10 judges whether the infrared emission tube is inserted into the circuit or not according to the detection result.
Specifically, the singlechip 10 may send a control signal to the infrared emission tube detection circuit 30 in real time, after receiving the control signal, the infrared emission tube detection circuit 30 may obtain a voltage in the circuit based on the control signal, and after obtaining the voltage, the infrared emission tube detection circuit 30 may process the voltage and send the processed voltage to the singlechip 10. When the singlechip 10 receives the processed voltage, it will determine whether the infrared emission tube is inserted into the infrared emission tube detection circuit 30 based on the processed voltage.
Referring to fig. 2, fig. 2 is a block diagram of an infrared emission tube detection circuit according to an embodiment of the present utility model, and as shown in fig. 2, the infrared emission tube detection circuit 30 includes a voltage division module 31, a control module 32, and a connection module 33. The first end of the voltage dividing module 31 is connected with the voltage detection end of the single chip microcomputer 10, the second end of the voltage dividing module 31 is connected with the first end of the connecting module 33, the third end of the voltage dividing module 31 is connected with the power supply 20, the second end of the connecting module 33 is connected with the first end of the control module 32, the control end of the control module 32 is connected with the signal output end of the single chip microcomputer 10, the second end of the control module 32 is connected with the ground end, and the connecting module 33 is also used for connecting an infrared transmitting tube.
In the process of the operation of the infrared emission tube detection circuit 30, the singlechip 10 sends a control signal to the control end of the control module 32 through the signal output end, and the control end of the control module 32 is in a conducting state based on the control signal after receiving the control signal. At this time, the voltage dividing module 31 obtains the voltage of the connection module 33 in real time, and processes the voltage to output the on voltage to the voltage detecting end of the singlechip 10. After receiving the turn-on voltage, the singlechip 10 determines whether the infrared emission tube is connected in the circuit based on the turn-on voltage. It should be noted that, the control signal sent by the single-chip microcomputer 10 is a level signal, and the level signal is mainly used to make the control module 32 be in a conductive state.
Specifically, as shown in fig. 2, the voltage dividing module 31 includes a first voltage dividing unit 311 and a resistor R1; the control module 32 includes a second voltage division unit 321 and a switching tube Q1. The first end of the resistor R1 is connected to the power supply 20, the second end of the resistor R1 is connected to the first end of the first voltage dividing unit 311 and the first end of the connection module 33, the second end of the first voltage dividing unit 311 is connected to the voltage detection end of the single chip microcomputer 10, and the third end of the first voltage dividing unit 311 is connected to the ground. It should be noted that, the resistor R1 is a current limiting resistor, and is used for protecting the infrared emission tube. When the connection module 33 is connected with the infrared emission tube, an instantaneous current is generated, and at this time, a current limiting resistor R1 is added in the infrared emission tube detection circuit to reduce the instantaneous current caused by the moment that the infrared emission tube is connected into the connection module 33, thereby protecting the infrared emission tube.
The first end of the switching tube Q1 is connected with the second end of the connection module 33, the control end of the switching tube Q1 is connected with the second end of the second voltage division unit 321, the third end of the switching tube Q1 is connected with the ground end, the first end of the second voltage division unit 321 is connected with the signal output end of the singlechip 10, and the third end of the second voltage division module 321 is connected with the ground end. It should be noted that, the switching tube Q1 may be a triode or a field effect tube, and the switching tube Q1 is configured to be turned on based on the control signal, so that the voltage obtained by the voltage dividing module 31 is a voltage to ground, thereby improving accuracy of the circuit.
Specifically, referring to fig. 3, fig. 3 is a circuit diagram of an infrared emission tube detection circuit provided by an embodiment of the present utility model, as shown in fig. 3, the first voltage division unit 311 is composed of a resistor R2 and a resistor R3, wherein a first end of the resistor R2 is connected to a first end of the connection module 33, a second end of the resistor R2 is connected to a voltage detection end of the singlechip 10, and a second end of the resistor R2 is further grounded through the resistor R3.
The second voltage division unit 321 is composed of a resistor R4 and a resistor R5, a first end of the resistor R4 is connected with a signal output end of the single chip microcomputer 10, a second end of the resistor R4 is connected with a control end of the switch tube Q1, and the resistor R4 is grounded through the resistor R5. It should be noted that, after the switch Q1 is turned on based on the control signal output by the singlechip 10, the voltage dividing module 31 may acquire the voltage of the first end of the connection module 33 in real time, divide the voltage by the resistor R1, the resistor R2 and the resistor R3, and finally input the divided on voltage to the voltage detection end of the singlechip 10. At this time, when the infrared emission tube is inserted and not inserted, the voltage at the first end of the connection module 33 is different, so that the conducting voltage divided by the voltage division module 31 is also different, and the singlechip 10 can confirm whether the infrared emission tube is inserted into the infrared emission tube detection circuit 30 based on the conducting voltage received by the voltage detection end.
In some embodiments, as shown in FIG. 3, the infrared emission tube detection circuit 30 further includes a capacitor C1; the first end of the capacitor C1 is connected with the second end of the resistor R2, and the second end of the capacitor C1 is connected with the ground terminal. The capacitor C1 is configured to filter burrs generated during operation of the infrared emission tube detection circuit 30, so as to improve accuracy in detecting whether the infrared emission tube is inserted.
In some embodiments, the connection module 33 is an infrared emission tube socket, as shown in fig. 3-4, the CN1 is the infrared emission tube socket, the CN2 is the plug of the infrared emission tube, and when the infrared emission tube needs to be connected to the infrared emission tube detection circuit 30, the plug of the infrared emission tube is only required to be inserted into the infrared emission tube socket, so that the connection module 33 and the infrared emission tube can be successfully connected.
Specifically, in fig. 3, after the signal output end of the singlechip 10 outputs a control signal, the control signal is a high-level signal, the resistor R4 and the resistor R5 divide the voltage of the control signal, and the divided control signal is input to the control end of the switch tube Q1, and after receiving the control signal, the switch tube Q1 is in a conducting state based on the control signal. When the infrared emitting tube is not inserted, the power supply 20 and the connection module 33 cannot form a path, so that the current of the power supply 20 flows to the ground based on the resistor R1, the resistor R2 and the resistor R3. At this time, the voltage of the power supply 20 is input to the voltage detection end of the singlechip 10 after being divided by the resistor R1, the resistor R2 and the resistor R3, wherein the resistance value of the resistor R1 is far smaller than the resistance values of the resistor R2 and the resistor R3, so that the voltage of the first end of the connection module 33 is the voltage of the power supply 20 at this time, and the turn-on voltage received by the voltage detection end is the voltage of the power supply 20 after being divided by the resistor R2 and the resistor R3.
As shown in fig. 4, when the infrared transmitting tube is inserted into the connection module 33, the current in the power supply 20 flows into the infrared transmitting tube through the resistor R1 and flows into the ground terminal based on the infrared transmitting tube. At this time, the voltage at the first end of the connection module 33 is the voltage when the infrared emission tube is turned on, and the voltage when the infrared emission tube is turned on is divided by the resistor R2 and the resistor R3 and then input to the voltage detection end of the singlechip 10. Based on this, it can be determined whether the infrared emission tube detection circuit 30 is connected to an infrared emission tube or not through the voltage obtained by the voltage detection terminal. Wherein the turn-on voltage of the infrared emission tube is not the same as the voltage of the power supply 20.
The embodiment of the utility model provides an infrared emission tube detection circuit which mainly comprises a voltage division module, a control module and a connection module; the first end of the voltage dividing module is connected with the voltage detection end of the single chip microcomputer, the second end of the voltage dividing module is connected with the first end of the connecting module, the third end of the voltage dividing module is connected with the power supply, the second end of the connecting module is connected with the first end of the control module, the control end of the control module is connected with the signal output end of the single chip microcomputer, the second end of the control module is connected with the grounding end, and the connecting module is further used for connecting an infrared transmitting tube. The control module is used for receiving a control signal output by the signal output end of the singlechip, when the control module is in a conducting state according to the control signal, the voltage dividing module acquires the voltage of the connecting module in real time and outputs a conducting voltage to the voltage detection end of the singlechip based on the voltage, and based on the voltage, the singlechip can judge whether the connecting module is connected with the infrared transmitting tube or not through the conducting voltage received by the voltage detection end.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the utility model, the steps may be implemented in any order, and there are many other variations of the different aspects of the utility model as described above, which are not provided in detail for the sake of brevity; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
Claims (8)
1. The infrared emission tube detection circuit is characterized by comprising a voltage division module, a control module and a connection module;
the first end of the voltage dividing module is connected with the voltage detection end of the singlechip, the second end of the voltage dividing module is connected with the first end of the connecting module, the third end of the voltage dividing module is connected with a power supply, the second end of the connecting module is connected with the first end of the control module, the control end of the control module is connected with the signal output end of the singlechip, the second end of the control module is connected with the grounding end, and the connecting module is also used for connecting an infrared emission tube;
the control module is used for receiving a control signal output by the signal output end of the singlechip, when the control module is in a conducting state according to the control signal, the voltage dividing module acquires the voltage of the connecting module in real time and outputs a conducting voltage to the voltage detection end of the singlechip based on the voltage, so that the singlechip judges whether the connecting module is connected with an infrared transmitting tube or not according to the conducting voltage.
2. The infrared emitter detection circuit according to claim 1, wherein the voltage division module comprises a first voltage division unit and a resistor R1;
the first end of the resistor R1 is connected with the power supply, the second end of the resistor R1 is connected with the first end of the first voltage dividing unit and the first end of the connecting module respectively, the second end of the first voltage dividing unit is connected with the voltage detection end of the singlechip, and the third end of the first voltage dividing unit is connected with the grounding end.
3. The infrared emitter detection circuit according to claim 2, wherein the first voltage dividing unit includes a resistor R2 and a resistor R3;
the first end of the resistor R2 is connected with the first end of the connecting module, the second end of the resistor R2 is connected with the voltage detection end of the singlechip, and the second end of the resistor R2 is grounded through the resistor R3.
4. The infrared emission tube detection circuit according to claim 1, wherein the control module comprises a second voltage division unit and a switching tube Q1;
the first end of the switching tube Q1 is connected with the second end of the connecting module, the control end of the switching tube Q1 is connected with the second end of the second voltage division unit, the third end of the switching tube Q1 is connected with the grounding end, the first end of the second voltage division unit is connected with the signal output end of the singlechip, and the third end of the second voltage division unit is connected with the grounding end.
5. The infrared emitter detection circuit according to claim 4, wherein the second voltage dividing unit comprises a resistor R4 and a resistor R5;
the first end of the resistor R4 is connected with the signal output end of the singlechip, the second end of the resistor R4 is connected with the control end of the switch tube Q1, and the resistor R4 is grounded through the resistor R5.
6. The infrared emitter detection circuit of claim 1, wherein the connection module is an infrared emitter socket.
7. An infrared transmitting tube detection circuit according to claim 3, characterized in that said voltage dividing module further comprises a capacitor C1;
the first end of the capacitor C1 is connected with the second end of the resistor R2, and the second end of the capacitor C1 is connected with the ground terminal.
8. An infrared transmitting tube detection system, characterized in that the infrared transmitting tube detection system comprises:
a single chip microcomputer;
a power supply; and
an infrared emitter detection circuit according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320170310.2U CN219417761U (en) | 2023-01-31 | 2023-01-31 | Infrared emission tube detection circuit and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320170310.2U CN219417761U (en) | 2023-01-31 | 2023-01-31 | Infrared emission tube detection circuit and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219417761U true CN219417761U (en) | 2023-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320170310.2U Active CN219417761U (en) | 2023-01-31 | 2023-01-31 | Infrared emission tube detection circuit and system |
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| Country | Link |
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| CN (1) | CN219417761U (en) |
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2023
- 2023-01-31 CN CN202320170310.2U patent/CN219417761U/en active Active
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