CN112581743B - Infrared remote control cascade circuit - Google Patents
Infrared remote control cascade circuit Download PDFInfo
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- CN112581743B CN112581743B CN202011413332.4A CN202011413332A CN112581743B CN 112581743 B CN112581743 B CN 112581743B CN 202011413332 A CN202011413332 A CN 202011413332A CN 112581743 B CN112581743 B CN 112581743B
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
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Abstract
The invention discloses an infrared remote control cascade circuit which comprises a remote control panel interface module, an IR IN module, an analog switcher module, an IR Out module and an equipment CPU module, wherein the remote control panel interface module, the IR IN module and the IR Out module are respectively connected with the analog switcher module; the remote control panel interface module is used for receiving a first remote control signal; the IR IN module comprises an IR IN interface, the IR Out module comprises an IR Out interface, and the IR IN interface is connected with the IR Out interface of the upper-level equipment to receive a second remote control signal sent by the IR Out interface of the upper-level equipment; the analog switcher module is used for controlling and switching the first remote control signal and the second remote control signal. According to the technical scheme provided by the invention, the purpose of simultaneously controlling a plurality of devices by one infrared remote control is achieved, and the user experience is improved.
Description
Technical Field
The invention relates to the technical field of infrared remote control cascade, in particular to an infrared remote control cascade circuit.
Background
In a conference or education application scene application, a plurality of same devices are used simultaneously, for example, two or more conference all-in-one machines may be placed in a conference room, because the devices are often used simultaneously and the same infrared remote controllers are used, a problem arises in that each device needs to be operated by a remote controller independently, and because the infrared remote controller has a certain range, once the B all-in-one machine is operated, the set A all-in-one machine needs to be operated carelessly, and the A all-in-one machine needs to be reset, so that when the remote control operation devices are used, the remote control operation devices can be influenced mutually, and extremely poor use experience is brought.
Disclosure of Invention
The invention provides an infrared remote control cascade circuit, which aims to solve the problem of mutual influence when a plurality of devices are simultaneously operated by using the existing infrared remote control.
IN order to achieve the above object, the present invention provides an infrared remote control cascade circuit, which includes a remote control panel interface module, an IR IN module, an analog switcher module, an IR Out module and an apparatus CPU module, wherein the remote control panel interface module, the IR IN module and the IR Out module are respectively connected to the analog switcher module, and the IR IN module and the analog switcher module are respectively connected to the apparatus CPU module; the remote control panel interface module is used for receiving a first remote control signal; the IR IN module comprises an IR IN interface, the IR Out module comprises an IR Out interface, and the IR IN interface is connected with the IR Out interface of the upper-level equipment to receive a second remote control signal sent by the IR Out interface of the upper-level equipment; the analog switcher module is used for controlling and switching the first remote control signal and the second remote control signal.
Preferably, the remote control panel interface module includes a remote control panel interface and a remote control signal detection circuit, the remote control panel interface is used for connecting an infrared light sensor to receive an infrared light signal emitted by a remote controller and convert the infrared light signal into a first remote control signal, and the remote control signal detection circuit is used for detecting the infrared light signal and is connected with the analog switcher module.
Preferably, the remote control signal detection circuit comprises an infrared light sensor connected through a resistor RL321 and is grounded through a capacitor CL192, an operating voltage connected through a resistor RL319 and a diode DL 9.
Preferably, the IR IN interface is a 3.5mm audio terminal.
Preferably, pin 6 of the IR IN interface is used for insertion detection, pin 3 is connected to the analog switcher module, pin 7 and pin 2 are connected IN parallel through resistor RL183 and resistor RL187 and then connected to a working voltage, and pin 1 is grounded.
Preferably, the IR IN module further comprises an insertion detection circuit comprising an insertion detection resistor RA136, a connection circuit connected to the operating voltage through a resistor RA6 and to the device CPU module.
Preferably, the analog switcher module includes an analog switching chip UL3, pin 1 of the analog switching chip UL3 is connected to the IR IN module through a resistor RL182 and to ground through a diode DL19, pin 3 is connected to the remote control panel interface module, pin 4 is connected to the IR OUT interface module, pin 6 is connected to the device CPU module, pin 5 is connected to an operating voltage through a resistor RL189, and pin 2 is connected to ground.
Preferably, the IR Out interface is a 3.5mm audio terminal.
Preferably, the IR Out module further comprises an IR Out circuit, the IR Out circuit comprising a transistor QL8 and a transistor QL9, the transistor QL8 being connected to the transistor QL9 through a resistor RL324, the transistor QL9 being connected to the analog switcher module through a resistor RL 185; one end of the transistor QL8 and one end of the transistor QL9 are respectively grounded.
Preferably, pin 3 of the IR Out interface is used for connecting the transistor QL8, and the connection of pin 3 of the IR Out interface and the transistor QL8 is grounded through a diode DL 18; pin 1 of the IR Out interface is grounded.
According to the infrared remote control cascade circuit provided by the invention, multiple devices are cascaded by using the 3.5mm audio terminal, so that the purpose that one infrared remote control simultaneously controls multiple devices is achieved, the cascaded devices are not influenced by a remote control signal to generate errors, and the user experience is improved.
Drawings
Fig. 1 is a schematic structural diagram of an infrared remote control cascade circuit according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a cascade of a plurality of all-in-one devices according to an embodiment of the present invention;
FIG. 3 is a schematic circuit diagram of a remote control panel interface of the remote control panel interface module of FIG. 1;
FIG. 4 is a circuit diagram of a remote control signal detection circuit of the remote control panel interface module of FIG. 1;
FIG. 5 is a circuit schematic of the IR IN interface of the IR IN module of FIG. 1;
FIG. 6 is a circuit schematic of an insertion detection circuit of the IR IN module of FIG. 1;
FIG. 7 is a circuit diagram of the analog switch module of FIG. 1;
FIG. 8 is a circuit schematic of the IR Out interface of the IR Out module of FIG. 1;
FIG. 9 is a circuit schematic of the IR Out circuit of the IR Out module of FIG. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. 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.
Referring to fig. 1 and fig. 2 IN combination, an embodiment of the present invention provides an infrared remote control cascade circuit, which includes a remote control panel interface module 10, an IR IN module 20, an analog switch module 30, an IR Out module 40, and a device CPU module 50, wherein the remote control panel interface module 10, the IR IN module 20, and the IR Out module 40 are respectively connected to the analog switch module 30, and the IR IN module 20 and the analog switch module 30 are respectively connected to the device CPU module 50; the remote control panel interface module 10 is used for receiving a first remote control signal; the IR IN module 20 comprises an IR IN interface, the IR Out module 40 comprises an IR Out interface, and the IR IN interface is connected with the IR Out interface of the upper-level equipment to receive a second remote control signal sent by the IR Out interface of the upper-level equipment; the analog switcher module 30 is used for controlling and switching the first remote control signal and the second remote control signal. Specifically, IN an embodiment of the present invention, there are multiple all-IN-one devices, each of which is an all-IN-one device for education or conference, as shown IN fig. 2, each of the all-IN-one devices includes the infrared remote control cascade circuit, the IR Out module 40 of the first all-IN-one device 101 is connected to the IR IN module 20 of the second all-IN-one device 102, the IR Out module 40 of the second all-IN-one device 102 is connected to the IR IN module 20 of the third all-IN-one device 103, and so on, and multiple all-IN-one devices can be cascaded. During specific connection, the IR IN interface of the IR IN module 20 of each all-IN-one device is connected to the IR Out interface of the IR Out module 40 of the upper-level device, and the IR IN interface and the IR Out interface are both 3.5mm audio terminals. If the IR IN interface of the first all-IN-one machine device 101 is not connected, the first remote control signal a transmitted by the remote controller is received through the remote control panel interface module, and if the IR IN interface of the all-IN-one machine device is connected, as shown IN fig. 2, the second remote control signal B transmitted by the IR Out interface of the previous stage device is received by the IR IN interface of each all-IN-one machine device, as shown IN fig. 2, of the second all-IN-one machine device 102 and the third all-IN-one machine device 103. The analog switcher module 30 is used for controlling and switching the first remote control signal a and the second remote control signal B.
Referring to fig. 3 and 4, in particular, the remote control panel interface module includes a remote control panel interface and a remote control signal detection circuit, the remote control panel interface is configured to connect to an infrared sensor to receive an infrared light signal transmitted by a remote controller and convert the infrared light signal into a first remote control signal, and the remote control signal detection circuit is configured to detect the infrared light signal and connect to the analog switcher module. The remote control signal detection circuit comprises an infrared light sensor connected through a resistor RL321, and is grounded through a capacitor CL192, an operating voltage connected through a resistor RL319, and a diode DL 9.
Referring to fig. 5 and 6, the IR IN module includes an IR IN interface and an IR IN circuit, pin 6 of the IR IN interface is used for insertion detection, pin 3 is connected to the analog switch module, pin 7 and pin 2 are connected IN parallel through resistor RL183 and resistor RL187 and then connected to a working voltage, and pin 1 is grounded. The IR IN module also includes an insertion detection circuit that includes an insertion detection resistor RA136, a connection circuit that is connected to the operating voltage through resistor RA6, and to the device CPU module.
Referring to fig. 7, the analog switcher module includes an analog switching chip UL3, pin 1 of the analog switching chip UL3 is connected to the IR IN module through a resistor RL182 and to ground through a diode DL19, pin 3 is connected to the remote control panel interface module, pin 4 is connected to the IR OUT interface module, pin 6 is connected to the device CPU module, pin 5 is connected to a working voltage through a resistor RL189, and pin 2 is connected to ground.
Referring to fig. 8 and 9, the IR Out module includes an IR Out interface and an IR Out circuit, the IR Out module further includes an IR Out circuit, the IR Out circuit includes a transistor QL8 and a transistor QL9, the transistor QL8 is connected to the transistor QL9 through a resistor RL324, and the transistor QL9 is connected to the analog switcher module through a resistor RL 185; one end of the transistor QL8 and one end of the transistor QL9 are respectively grounded. Pin 3 of the IR Out interface is used for connecting the transistor QL8, and the connection between pin 3 of the IR Out interface and the transistor QL8 is grounded through a diode DL 18; pin 1 of the IR Out interface is grounded.
Specifically, IN an embodiment of the present invention, for a first device IN the cascade, since the IR IN interface is not connected, only the first remote control signal transmitted by the remote controller is received, but for a subsequent device IN the cascade, since the IR Out interface of the previous device connected to the IR IN interface is capable of receiving the second remote control signal transmitted by the IR Out interface of the previous device, the insertion state is detected by the device CPU module to control the analog switch module, and the device is determined to respond to the second remote control signal transmitted by the previous device and ignore the first remote control signal from the remote controller, thereby effectively preventing errors caused by simultaneous reception of the two signals. In the IR Out circuit, a reverse circuit is realized by adding two triodes, so that the next stage of equipment does not influence the previous stage, and the remote control signal output after multi-stage cascade connection is not influenced.
Compared with the prior art, the infrared remote control cascade circuit provided by the invention has the advantages that multiple devices are cascaded by using the 3.5mm audio terminal, so that the purpose of simultaneously controlling the multiple devices by one infrared remote control is achieved, the cascaded multiple devices are not influenced by the remote control signal to generate errors, and the user experience is improved.
While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.
Claims (10)
1. An infrared remote control cascade circuit is characterized by comprising a remote control panel interface module, an IR IN module, an analog switcher module, an IR Out module and an equipment CPU module, wherein the remote control panel interface module, the IR IN module and the IR Out module are respectively connected with the analog switcher module, the IRIN module and the analog switcher module are respectively connected with the equipment CPU module, and the insertion state is detected through the equipment CPU module; the remote control panel interface module is used for receiving a first remote control signal; the IR IN module comprises an IR IN interface, the IR Out module comprises an IR Out interface, and the IR IN interface is connected with the IR Out interface of the upper-level equipment to receive a second remote control signal sent by the IR Out interface of the upper-level equipment; the analog switcher module is used for controlling and switching the first remote control signal and the second remote control signal according to the insertion state detected by the equipment CPU module, and determining that the equipment responds to the second remote control signal sent by the superior equipment and ignores the first remote control signal from the remote controller.
2. The infrared remote control cascade circuit of claim 1, wherein the remote control panel interface module comprises a remote control panel interface and a remote control signal detection circuit, the remote control panel interface is configured to connect to an infrared light sensor to receive an infrared light signal transmitted by a remote control and convert the infrared light signal into a first remote control signal, and the remote control signal detection circuit is configured to detect the infrared light signal and connect to the analog switcher module.
3. The infrared remote control cascade circuit of claim 2 wherein the remote control signal detection circuit comprises an infrared light sensor connected through a resistor RL321 and connected to ground through a capacitor CL192, an operating voltage through a resistor RL319, and to ground through a diode DL 9.
4. The infrared remote control cascade circuit of claim 1, wherein the IR IN interface is a 3.5mm audio terminal.
5. The IR remote cascade circuit of claim 4, wherein pin 6 of the IR IN interface is used for insertion detection, pin 3 is connected to the analog switcher module, pin 7 and pin 2 are connected IN parallel through resistor RL183 and resistor RL187 and then connected to operating voltage, and pin 1 is connected to ground.
6. The infrared remote control cascade circuit of claim 1, wherein the IR IN module further comprises an insertion detection circuit, the insertion detection circuit comprising an insertion detection resistor RA136, a connection circuit to an operating voltage through a resistor RA6, and a connection circuit to the device CPU module.
7. The infrared remote control cascade circuit of claim 1 wherein the analog switcher module comprises an analog switching chip UL3, pin 1 of the analog switching chip UL3 is connected to the IR IN module through a resistor RL182 and to ground through a diode DL19, pin 3 is connected to the remote control panel interface module, pin 4 is connected to the IR OUT interface module, pin 6 is connected to the device CPU module, pin 5 is connected to operating voltage through a resistor RL189, and pin 2 is connected to ground.
8. The infrared remote control cascade circuit of claim 1 wherein the IR Out interface is a 3.5mm audio terminal.
9. The infrared remote control cascade circuit of claim 8, wherein the IR Out module further comprises an IR Out circuit, the IR Out circuit comprising a transistor QL8 and a transistor QL9, the transistor QL8 being connected to the transistor QL9 through a resistor RL324, the transistor QL9 being connected to the analog switcher module through a resistor RL 185; one end of the transistor QL8 and one end of the transistor QL9 are respectively grounded.
10. The infrared remote control cascade circuit of claim 9 wherein pin 3 of the IR Out interface is used to connect the transistor QL8, the connection of pin 3 of the IR Out interface to the transistor QL8 is connected to ground through a diode DL 18; pin 1 of the IR Out interface is grounded.
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| CN202011413332.4A CN112581743B (en) | 2020-12-02 | 2020-12-02 | Infrared remote control cascade circuit |
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| CN202011413332.4A CN112581743B (en) | 2020-12-02 | 2020-12-02 | Infrared remote control cascade circuit |
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| CN112581743B true CN112581743B (en) | 2022-03-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205961346U (en) * | 2016-08-16 | 2017-02-15 | 广州视源电子科技股份有限公司 | Extension infrared remote control circuit |
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| JP5708312B2 (en) * | 2011-07-05 | 2015-04-30 | セイコーエプソン株式会社 | projector |
| CN202425130U (en) * | 2011-12-28 | 2012-09-05 | 深圳市奥拓光电科技有限公司 | Infrared remote control light emitting diode (LED) panel light |
| CN103778765A (en) * | 2012-10-25 | 2014-05-07 | 华为终端有限公司 | Remote control method, remote control equipment and main equipment |
| CN203423691U (en) * | 2013-08-27 | 2014-02-05 | 中煤科工集团重庆研究院 | Mining-used multifunctional wireless data transmission repeater with infrared remote control |
| CN105513333B (en) * | 2014-09-22 | 2019-01-04 | Tcl集团股份有限公司 | A kind of infrared centralized control method and system of more equipment |
| CN104378673B (en) * | 2014-11-18 | 2018-12-04 | 康佳集团股份有限公司 | A method of prevent remote controler and the signal of infrared forwarding equipment from interfering with each other |
| CN104410463A (en) * | 2014-11-25 | 2015-03-11 | 中国航天科技集团公司第五研究院第五一三研究所 | Method and system for laser communication on basis of quantum cascade laser |
| CN204258817U (en) * | 2014-11-27 | 2015-04-08 | 南京战诚光电子科技有限公司 | Received IR signal cascade two-way circuit |
| CN105227913B (en) * | 2015-09-25 | 2018-12-28 | 厦门视诚科技有限公司 | A kind of processing method of cascade Mach-Zehnder interferometer order |
| CN107947949A (en) * | 2017-12-28 | 2018-04-20 | 南京熊猫电子股份有限公司 | A kind of the time frequency system and control method of more extension set switching on and shutting down of host computer control |
| CN108388222A (en) * | 2018-03-26 | 2018-08-10 | 大山科技有限公司 | Cascade bus the intelligent domestic appliance controller |
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| CN205961346U (en) * | 2016-08-16 | 2017-02-15 | 广州视源电子科技股份有限公司 | Extension infrared remote control circuit |
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Address after: Room 238, room 406, 1 Yichuang street, Huangpu District, Guangzhou, Guangdong 510700 Applicant after: Guangzhou langguo Electronic Technology Co.,Ltd. Address before: Room 238, room 406, 1 Yichuang street, Huangpu District, Guangzhou, Guangdong 510700 Applicant before: GUANGZHOU LANGO ELECTRONIC SCIENCE & TECHNOLOGY Co.,Ltd. |
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