CN212750070U - Infrared signal transmitting and receiving processing circuit - Google Patents
Infrared signal transmitting and receiving processing circuit Download PDFInfo
- Publication number
- CN212750070U CN212750070U CN202021344570.XU CN202021344570U CN212750070U CN 212750070 U CN212750070 U CN 212750070U CN 202021344570 U CN202021344570 U CN 202021344570U CN 212750070 U CN212750070 U CN 212750070U
- Authority
- CN
- China
- Prior art keywords
- infrared
- resistor
- triode
- circuit
- pull
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Selective Calling Equipment (AREA)
Abstract
The utility model provides an infrared signal transmitting and receiving processing circuit, which comprises an infrared transmitting circuit and an infrared receiving circuit; when the circuit works, the CTL pin is pulled down, the triode Q1 is opened, the infrared transmitting circuit and the infrared receiving circuit are powered on, and the infrared transmitting tube D2 forms a corresponding infrared pulse signal by controlling the change of the high and low levels of the TxD 2. When the infrared receiving tube connector D1 receives an infrared signal sent by the infrared transmitting tube D2, the infrared receiving tube D1 is conducted, the power supply voltage is divided to enable the shaping triode Q3 to be conducted, the MCU pin RxD2 is pulled to a low level, and the infrared receiving circuit receives information sent by the infrared transmitting circuit. The invention realizes the design of the infrared transmitting and receiving circuit by adopting simple devices, can realize the standby with ultra-low power consumption and the communication with higher speed, and can provide a good solution for the parameter setting without meter disassembly in the field of intelligent instruments.
Description
Technical Field
The utility model relates to a circuit especially relates to an infrared signal transmission receives processing circuit.
Background
Infrared data transmission is a modern important data transmission method. Because infrared output transmission has the characteristics of non-contact, point-to-point, high transmission rate and no interference to other electric appliances, the infrared transmission device is widely applied to short-distance wireless electronic equipment.
In the intelligent instrument field, because the leakproofness requirement of table utensil, the dismantlement of table utensil after dispatching from the factory is very inconvenient, and the table utensil is assembled the back, and the function and the parameter setting of table utensil become very difficult, and an infrared signal emission receiving processing circuit, the parameter setting problem after the table utensil equipment of solution that can be perfect, and the various states of infrared receiving and sending circuit read and provide a simple and easy mode, can save the display screen cost, realize the table utensil low cost.
Disclosure of Invention
To the not enough of existence among the prior art, the utility model provides an infrared signal transmission receives processing circuit.
An infrared signal transmitting and receiving processing circuit comprises an infrared transmitting circuit and an infrared receiving circuit;
the infrared transmitting circuit comprises an infrared transmitting tube D2, a second triode Q2, a second pull-up resistor R3, a third pull-up resistor R4 and a second current-limiting resistor R5;
the cathode of the infrared emission tube D2 is directly connected with GND, the anode of the infrared emission tube D2 is connected with the collector of a second triode Q2, the base of the second triode Q2 is connected with one end of a second current-limiting resistor R5, the other end of the second current-limiting resistor R5 is connected with an MCU serial port transmitting pin TxD2, the collector of the second triode Q2 is connected with one end of a second pull-up resistor R4, the other end of the third pull-up resistor R4 is connected with an MCU output pin POW, one end of the second pull-up resistor R3 is connected with a third current-limiting resistor R5 and the MCU serial port transmitting pin TxD2, and the other end of the second pull-up resistor R3 is connected with the MCU output pin POW;
the infrared receiving circuit comprises an infrared receiving tube D1, a first triode Q1, a shaping triode Q3, a first current limiting resistor R1, a first pull-up resistor R2, a first voltage dividing resistor R6, a second voltage dividing resistor R7, a first filter capacitor C1 and a second filter capacitor C2;
the cathode of the infrared receiving tube D1 is connected with a power supply control circuit and is connected with the collector of the first triode Q1; the power supply control circuit consists of a first triode Q1 and a first current-limiting resistor R1, the emitter of the first triode Q1 is connected with 3.3V voltage, the base electrode of the first triode Q1 is connected with one end of a first current limiting resistor R1, the other end of the current limiting resistor R1 is connected with a MUC power supply control pin CTL, the cathode of the infrared connecting tube D1 is connected with an MCU output pin POW, the other end of the first pull-up resistor R3, the anode of the infrared receiving tube D1 is connected with one end of a first voltage dividing resistor R6, the other end of the resistor R6 is connected with one end of a second divider resistor R7, one end of a second filter capacitor C2 and the base of a shaping triode Q3, the other end of the second voltage-dividing resistor R7, the other end of the second filter capacitor C2 and the emitter of the shaping triode Q3 are connected to GND, a collector of the shaping triode Q3 is connected with one end of a first pull-up resistor R2 and a serial port receiving pin RxD2 of the MCU; the other end of the first pull-up resistor R2 is connected with the cathode of the infrared receiving tube D1 and the output pin POW of the MCU, one end of the first filter capacitor C1 is connected with the serial port receiving pin RxD2 of the MCU, and the other end of the first filter capacitor C1 is connected with GND.
Borrow by above-mentioned scheme, the utility model discloses knowledge has following advantage:
(1) complex modules such as an operational amplifier and a comparator are not adopted, the whole circuit structure is very simple, and only few common components are used;
(2) the utility model discloses an infrared transmitting tube D1 in transmitting circuit be located triode Q2 collecting electrode below, for placing in Q2 projecting pole top, the time that triode Q2 was opened can reduce the driving force that increases triode Q2 simultaneously to infrared transmitting tube D2 on-off time is dwindled, has improved the speed of transmission.
(3) The utility model discloses a receiving circuit carries out the plastic to the infrared signal that infrared receiving tube received through triode Q3, can increase infrared signal's rate of recognition to and increase infrared speed.
(4) The utility model discloses a power supply circuit can turn off whole receipt, transmitting circuit power when need not use infrared receiving function for whole circuit reduces the consumption.
Drawings
FIG. 1 is an infrared emission circuit;
fig. 2 is an infrared receiving circuit.
Detailed Description
In order to explain technical contents, structural features, and achieved effects of the present invention in detail, the following detailed description is made with reference to the accompanying drawings in combination with the embodiments.
An infrared signal transmitting and receiving processing circuit comprises an infrared transmitting circuit and an infrared receiving circuit;
as shown in fig. 1, the infrared transmitting circuit includes an infrared transmitting tube D2, a second transistor Q2, a second pull-up resistor R3, a third pull-up resistor R4, and a second current limiting resistor R5;
the cathode of the infrared emission tube D2 is directly connected with GND, the anode of the infrared emission tube D2 is connected with the collector of a second triode Q2, the base of the second triode Q2 is connected with one end of a second current-limiting resistor R5, the other end of the second current-limiting resistor R5 is connected with an MCU serial port transmitting pin TxD2, the collector of the second triode Q2 is connected with one end of a second pull-up resistor R4, the other end of the third pull-up resistor R4 is connected with an MCU output pin POW, one end of the second pull-up resistor R3 is connected with a third current-limiting resistor R5 and the MCU serial port transmitting pin TxD2, and the other end of the second pull-up resistor R3 is connected with the MCU output pin POW;
as shown in fig. 2, the infrared receiving circuit includes an infrared receiving tube D1, a first transistor Q1, a shaping transistor Q3, a first current limiting resistor R1, a first pull-up resistor R2, a first voltage dividing resistor R6, a second voltage dividing resistor R7, a first filter capacitor C1, and a second filter capacitor C2;
the cathode of the infrared receiving tube D1 is connected with a power supply control circuit and is connected with the collector of the first triode Q1; the power supply control circuit consists of a first triode Q1 and a first current-limiting resistor R1, the emitter of the first triode Q1 is connected with 3.3V voltage, the base electrode of the first triode Q1 is connected with one end of a first current limiting resistor R1, the other end of the current limiting resistor R1 is connected with a MUC power supply control pin CTL, the cathode of the infrared connecting tube D1 is connected with an MCU output pin POW, the other end of the first pull-up resistor R3, the anode of the infrared receiving tube D1 is connected with one end of a first voltage dividing resistor R6, the other end of the resistor R6 is connected with one end of a second divider resistor R7, one end of a second filter capacitor C2 and the base of a shaping triode Q3, the other end of the second voltage-dividing resistor R7, the other end of the second filter capacitor C2 and the emitter of the shaping triode Q3 are connected to GND, a collector of the shaping triode Q3 is connected with one end of a first pull-up resistor R2 and a serial port receiving pin RxD2 of the MCU; the other end of the first pull-up resistor R2 is connected with the cathode of the infrared receiving tube D1 and the output pin POW of the MCU, one end of the first filter capacitor C1 is connected with the serial port receiving pin RxD2 of the MCU, and the other end of the first filter capacitor C1 is connected with GND.
The working process is as follows: when the circuit works, the CTL pin is pulled down, the first triode Q1 is opened, the infrared transmitting circuit and the infrared receiving circuit are opened, the infrared transmitting circuit, the MCU sends high-low information through the TxD2 pin, when TxD2 sends high level, the second triode Q2 is in cut-off state, at this time, the infrared transmitting tube D2 is in cut-off state, when TxD2 sends low level, the second triode Q2 is in saturation state, at this time, the infrared transmitting tube D2 is in conduction state to transmit infrared light, and through the change of high-low level of the control pin TxD2, the infrared transmitting tube D2 forms a corresponding infrared pulse signal.
When the infrared receiving circuit power is turned on, when the infrared receiving tube D1 does not receive an infrared signal, the pin RxD2 is pulled up to a high level through R2, when the infrared receiving tube D1 receives an infrared signal sent by the infrared transmitting tube D2, the infrared receiving tube D1 is turned on, the partial pressure of the power voltage between R6 and R7 enables the shaping triode Q3 to be turned on, and the MCU pin RxD2 is pulled to a low level, so that the infrared receiving circuit can successfully receive the information sent by the infrared transmitting circuit.
Claims (1)
1. An infrared signal transmitting and receiving processing circuit is characterized by comprising an infrared transmitting circuit and an infrared receiving circuit;
the infrared transmitting circuit comprises an infrared transmitting tube D2, a second triode Q2, a second pull-up resistor R3, a third pull-up resistor R4 and a second current-limiting resistor R5;
the cathode of the infrared emission tube D2 is directly connected with GND, the anode of the infrared emission tube D2 is connected with the collector of a second triode Q2, the base of the second triode Q2 is connected with one end of a second current-limiting resistor R5, the other end of the second current-limiting resistor R5 is connected with an MCU serial port transmitting pin TxD2, the collector of the second triode Q2 is connected with one end of a second pull-up resistor R4, the other end of the third pull-up resistor R4 is connected with an MCU output pin POW, one end of the second pull-up resistor R3 is connected with a third current-limiting resistor R5 and the MCU serial port transmitting pin TxD2, and the other end of the second pull-up resistor R3 is connected with the MCU output pin POW;
the infrared receiving circuit comprises an infrared receiving tube D1, a first triode Q1, a shaping triode Q3, a first current limiting resistor R1, a first pull-up resistor R2, a first voltage dividing resistor R6, a second voltage dividing resistor R7, a first filter capacitor C1 and a second filter capacitor C2;
the cathode of the infrared receiving tube D1 is connected with a power supply control circuit and is connected with the collector of the first triode Q1; the power supply control circuit consists of a first triode Q1 and a first current-limiting resistor R1, the emitter of the first triode Q1 is connected with 3.3V voltage, the base electrode of the first triode Q1 is connected with one end of a first current limiting resistor R1, the other end of the current limiting resistor R1 is connected with a MUC power supply control pin CTL, the cathode electrode of the infrared receiving tube D1 is connected with an MCU output pin POW, the other end of the first pull-up resistor R3, the anode of the infrared receiving tube D1 is connected with one end of a first voltage dividing resistor R6, the other end of the resistor R6 is connected with one end of a second divider resistor R7, one end of a second filter capacitor C2 and the base of a shaping triode Q3, the other end of the second voltage-dividing resistor R7, the other end of the second filter capacitor C2 and the emitter of the shaping triode Q3 are connected to GND, a collector of the shaping triode Q3 is connected with one end of a first pull-up resistor R2 and a serial port receiving pin RxD2 of the MCU; the other end of the first pull-up resistor R2 is connected with the cathode of the infrared receiving tube D1 and the output pin POW of the MCU, one end of the first filter capacitor C1 is connected with the serial port receiving pin RxD2 of the MCU, and the other end of the first filter capacitor C1 is connected with GND.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021344570.XU CN212750070U (en) | 2020-07-10 | 2020-07-10 | Infrared signal transmitting and receiving processing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021344570.XU CN212750070U (en) | 2020-07-10 | 2020-07-10 | Infrared signal transmitting and receiving processing circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212750070U true CN212750070U (en) | 2021-03-19 |
Family
ID=75021226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021344570.XU Active CN212750070U (en) | 2020-07-10 | 2020-07-10 | Infrared signal transmitting and receiving processing circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212750070U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113497616A (en) * | 2021-06-10 | 2021-10-12 | 佛山普瑞威尔科技有限公司 | An infrared induction control circuit and a liquid outlet device |
-
2020
- 2020-07-10 CN CN202021344570.XU patent/CN212750070U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113497616A (en) * | 2021-06-10 | 2021-10-12 | 佛山普瑞威尔科技有限公司 | An infrared induction control circuit and a liquid outlet device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102800182B (en) | Wireless transceiving module and inverter system thereof | |
| CN103425235A (en) | Single chip microcomputer low power consumption standby circuit and control method | |
| CN203982576U (en) | M-BUS slave telecommunication circuit | |
| CN212750070U (en) | Infrared signal transmitting and receiving processing circuit | |
| CN106301743B (en) | Half-duplex communication driving circuit based on mains supply fire wire zero line | |
| CN205405224U (en) | Electric tool controller | |
| CN109474853A (en) | A kind of television set wake-up circuit and the television set with it | |
| CN201655266U (en) | Projector with wireless communication function | |
| CN105160862A (en) | M-BUS (METER-BUS) slave communication circuit | |
| CN206975450U (en) | A kind of mbus circuits of opto-electrical direct reader | |
| CN201918631U (en) | Optical fiber laser | |
| CN218886450U (en) | Instrument data collector | |
| CN214618081U (en) | Low-power consumption wireless electric valve controller | |
| CN110636404A (en) | A single-line multi-device priority communication method and system | |
| CN108322239B (en) | Close-range unidirectional power supply reverse communication circuit structure | |
| CN108540122B (en) | A communication interface circuit | |
| CN209484792U (en) | A kind of air-conditioning remote control with sound prompt function | |
| CN215186695U (en) | Interface circuit of motor driver | |
| CN215894942U (en) | Speed measuring and distance fixing device | |
| CN214959490U (en) | Starting-up control circuit and ultrasonic equipment | |
| CN222655335U (en) | Bluetooth networking communication circuit and Bluetooth gateway | |
| CN213342006U (en) | Hybrid enable control circuit for power supply | |
| CN209343173U (en) | A wireless multifunctional signal acquisition circuit for fire protection system | |
| CN211506721U (en) | WIFI bluetooth module with bluetooth-to-infrared function | |
| CN214380666U (en) | Household electrical appliance control circuit, system and electrical equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |