CN216486780U - Infrared communication tool convenient to carry and simple to operate - Google Patents
Infrared communication tool convenient to carry and simple to operate Download PDFInfo
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- CN216486780U CN216486780U CN202122302987.0U CN202122302987U CN216486780U CN 216486780 U CN216486780 U CN 216486780U CN 202122302987 U CN202122302987 U CN 202122302987U CN 216486780 U CN216486780 U CN 216486780U
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Abstract
An infrared communication tool which is convenient to carry and simple to operate, a microprocessor: automatically receiving and sending instructions; infrared communication interface unit: the ultrasonic water meter is connected with the microprocessor, and is directly butted with a communication interface of the ultrasonic water meter in a full duplex communication mode; USB communication interface unit: the microprocessor is connected with the communication interface of the upper computer; a key circuit: switching an automatic transceiving instruction by a key mode; indicator light circuit: directly observing to obtain the current function corresponding to receiving and transmitting through identifying the indicator light; power supply: and supplying power for the microprocessor to work. This is novel to have small, portable, and infrared receiving and dispatching distance is far away, through configuration in advance, can realize receiving and dispatching instruction's variety.
Description
Technical Field
The utility model relates to a communication device, in particular to an infrared communication device for parameter reading and writing and kinetic energy debugging of an ultrasonic water meter.
Background
Chinese patent document discloses "an ultrasonic water meter calibration device for infrared communication" (CN 201822117745.2): the device comprises a flow calibration test device, a multi-path infrared communication switching module, an infrared pulse receiving module and an infrared communication module. The ultrasonic water meter flow calibration method is mainly used for calibrating the flow of ultrasonic water meters during mass production of the water meters. The prior art has the problems of complex circuit structure, short infrared receiving and transmitting distance and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an infrared communication tool which is small in size, convenient to carry, capable of automatically realizing instruction receiving and sending and long in infrared transmitting and receiving distance.
The purpose of the utility model is realized as follows: the utility model provides an infrared communication instrument convenient to carry, easy operation which characterized in that, microprocessor: automatically receiving and sending instructions; infrared communication interface unit: the ultrasonic water meter is connected with the microprocessor, adopts a full duplex communication mode and is directly butted with a communication interface of the ultrasonic water meter; USB communication interface unit: the microprocessor is connected with the communication interface of the upper computer; a key circuit: switching an automatic transceiving instruction by a key mode; indicator light circuit: directly observing to obtain the current function corresponding to receiving and transmitting through identifying the indicator light; power supply: and supplying power for the microprocessor to work.
Compared with the prior art, the tool has the following characteristics and advantages:
1. the appearance is small, portable, is applicable to field operation personnel.
2. The operation is simple, and the instruction receiving and sending are automatically realized.
3. The function can realize the diversity of the receiving and sending instructions through advanced configuration.
4. The infrared transmission and the infrared reception are amplified, and ultra-long distance transceiving can be realized.
5. And external and battery double power supply can be realized.
Drawings
Fig. 1 is a block diagram of the electrical structure of the tool.
Fig. 2 is a block diagram of the microprocessor shown in fig. 1.
Fig. 3 is a circuit diagram of the infrared communication interface unit shown in fig. 1.
Fig. 4 is a circuit diagram of the USB communication interface unit shown in fig. 1.
Fig. 5 is a circuit diagram of the key shown in fig. 1.
Fig. 6 is a circuit diagram of the indicator light shown in fig. 1.
Detailed Description
Fig. 1 shows that the circuit main board mainly comprises a central microprocessor, a power supply, an infrared communication interface, a USB communication interface, an indicator light and a key.
The microprocessor: all the data comprehensive processing units coordinate and control the operation of other units; and the processor is operated using an ultra low power mode; and the core component realizes automatic receiving and transmitting.
Power management: and a battery power supply and USB interface double power supply mode is adopted, and USB power supply is preferred.
USB communication interface unit: the unit is an interface for realizing communication between the tool and an upper computer, and the upper computer can configure a receiving and sending instruction for the tool through a USB interface and can also directly transmit the instruction to an infrared interface to realize transparent transmission communication.
Infrared communication interface unit: the unit is a communication interface directly connected with the water meter and adopts a full duplex communication mode.
An indicator light: the current transceiving function can be directly observed through the identification indicator lamp.
The microprocessor: automatically receiving and sending instructions; infrared communication interface unit: the ultrasonic water meter is connected with the microprocessor, adopts a full duplex communication mode and is directly butted with a communication interface of the ultrasonic water meter; USB communication interface unit: the microprocessor is connected with the communication interface of the upper computer; a key circuit: switching an automatic transceiving instruction by a key mode; indicator light circuit: directly observing to obtain the current function corresponding to receiving and transmitting through identifying the indicator light; power supply: and supplying power for the microprocessor to work.
FIG. 2, FIG. 3, FIG. 4, FIG. 5, FIG. 6 show a single chip microcomputer with a microprocessor U3 model FM33G 026; the infrared communication interface unit is: a base electrode of a triode Q1 with the model number of MMBT3906 is connected with a pin 19 of U3 in series with a resistor R2, an emitter electrode of Q1 is connected with a pin 51 of U3, a collector electrode of Q1 is connected with a pin 1 of U1, a pin 2 of U1 is connected with a resistor R6 in series with a pin 50 of U3 in series with the resistor R10 in series with a pin 3 of U1 is connected with a pin 50 of U3 in series with a pin 3 of U1 in series with a resistor R8 in series with a base electrode of a triode Q2 with the model number of MMBT3904, an emitter electrode of Q2 is connected with a pin 50 of U3, a collector electrode of Q2 is connected with a pin 18 of U3, and a collector electrode of Q2 is connected with a pin 4 of U1 in series with a pin 51 of U3 after being connected with the resistor R5 in series with the pin 51 of U634; u1 is a pair of infrared tubes, the model is: IR204C-A-L and PT 204-6B;
the USB communication interface unit is: the RXD pin of a CP2102 chip U4 is connected with the anode of a diode D7, the cathode of D7 is connected with the pin 3 of U3, the TXD pin of U3 is connected with the cathode of a diode D3, the anode of D3 is connected with the pin 2 of U3, a resistor R3 is connected in series between the pin 2 and the pin 9 of U3, a pin 4 and a pin 5 of J3 and a pin 6 of J3 which are connected with an upper computer in a USB-AB head mode are connected with the GND pin of U3, a pin 2 and a pin 3 of J3 are connected with the pin D and the pin D + of U3 respectively, a pin 1 of J3 is connected in series with a capacitor C3 and then connected with the GND pin of U3, a pin 1 of J3 is connected with the anode of the diode D3, a diode D3 is connected with the cathode of V3.6, a pin RST of U3 is connected in series with a capacitor C3 and a pin RST 3 and then connected with the pin U3 and a pin 3 are connected with the pin U3, a pin 3 is connected with the pin U3 and a pin 3 is connected with the pin U3, a pin 3 is connected with the pin 3, a pin 3 and a resistor R of U3 and a resistor R3 is connected with the pin 3 and a pin 3 is connected with U3 and a pin 3 is connected with U3 and a pin 3 and a resistor R is connected with U3 and a pin 3 is connected with U3 and a pin 3 in series, a pin 3 and a resistor R is connected with U3 and a pin 3 is connected with U3 and a resistor R is connected with U3 and a pin 3 and a resistor R is connected with U3 and a pin 3 and a resistor R is connected in series; the key circuit is as follows: the pin 3 of a mechanical point contact key P1 with the model number of 6X6X18 is connected with the pin 50 of U3, the pin 1 of P1 is connected with the pin 2, the pin 4 of P1 is connected with the pin 50 of U3, the pin 2 of P1 is connected with a resistor R15 in series and then connected with the pin 32 of U3, and the resistor R16 is connected between the pin 3 of U3 and the pin 51 of U3 in series;
indicator light circuit: the positive stages of the LED1, the LED2, the LED3, the LED4 and the LED5 are all connected to a pin 51 of the U3, and the negative electrodes of the LED1, the LED2, the LED3, the LED4 and the LED5 are respectively connected with the pins 33, 34, 35, 36 and 37 of the U3 after being respectively connected with resistors R3, R4, R7, R9 and R11 in series.
Referring to fig. 2, the FM33G0 series low power consumption microprocessor of the compound denier micro corporation is adopted, and the chip coordinates the operation of the whole collector and realizes the automatic receiving and sending of instructions and the transparent transmission of instructions.
Referring to fig. 3, the sending signal controls the on-off of the Q1 through R2 to realize the sending and the off of the infrared sending lamp; the intensity of the transmission can be adjusted by the magnitude of the resistance of R6. The receiving signal realizes the conversion of high and low levels through the connection and disconnection of a receiving lamp, the resistance value of R10 can adjust the strength of the identification signal, the signal receiving is realized through the connection and disconnection of Q2, and R5 is a pull-up resistor for receiving the signal.
Referring to fig. 4, the USB interface communication mainly uses a CP2102 chip, and establishes communication connection with the microprocessor through a TTL signal; wherein D7 and D8 realize level isolation, and R13 receives a pull-up resistor for the processor. And the USB-AB head is connected with an upper computer in a USB-AB head mode, and power supply for the mainboard is realized.
Referring to fig. 5, using mechanical click keys, R15 is a current limiting resistor and R16 is a static pull-up resistor. The key realizes the debouncing through software. The automatic receiving and sending instructions are switched in a key pressing mode, and the operation is simple.
Referring to fig. 6, the indicator lamps are connected in a common anode mode, and the cathode is controlled by the IO port of the microprocessor. R3, R4, R7, R9 and R11 are current-limiting resistors. Each indicator light corresponds to a function, and when the indicator light is on, the function is performed. In the diagram of the USB communication interface, V3.6 and V5.0 are respectively supplied with power by 3.6V and 5.0V, a V3.6 power supply is provided by a battery, V5.0 is supplied with power by a USB wire, if V5.0 exists, V5.0 is preferentially used for supplying power to the system, and both are positive power supplies.
And about realizing parameter reading and writing and function debugging of the ultrasonic water meter, the sent instruction is the parameter reading and writing instruction of the ultrasonic water meter. When the ultrasonic water meter receives the instruction, the corresponding parameters are returned to the tool.
Claims (3)
1. An infrared communication tool which is convenient to carry and simple to operate, is characterized in that,
the microprocessor: automatically receiving and sending instructions;
infrared communication interface unit: the ultrasonic water meter is connected with the microprocessor, adopts a full duplex communication mode and is directly butted with a communication interface of the ultrasonic water meter;
USB communication interface unit: the microprocessor is connected with the communication interface of the upper computer;
a key circuit: switching an automatic transceiving instruction by a key mode;
indicator light circuit: directly observing to obtain the current function corresponding to receiving and transmitting through identifying the indicator light;
power supply: and supplying power for the microprocessor to work.
2. The infrared communication tool of claim 1, wherein the microprocessor is a single chip microcomputer of type FM33G026, U3; the infrared communication interface unit is: a base electrode of a triode Q1 with the model number of MMBT3906 is connected with a pin 19 of U3 in series with a resistor R2, an emitter electrode of Q1 is connected with a pin 51 of U3, a collector electrode of Q1 is connected with a pin 1 of U1, a pin 2 of U1 is connected with a resistor R6 in series with a pin 50 of U3 in series with the resistor R10 in series with a pin 3 of U1 is connected with a pin 50 of U3 in series with a pin 3 of U1 in series with a resistor R8 in series with a base electrode of a triode Q2 with the model number of MMBT3904, an emitter electrode of Q2 is connected with a pin 50 of U3, a collector electrode of Q2 is connected with a pin 18 of U3, and a collector electrode of Q2 is connected with a pin 4 of U1 in series with a pin 51 of U3 after being connected with the resistor R5 in series with the pin 51 of U634; u1 is a pair of infrared tubes, the model is: IR204C-A-L and PT 204-6B;
the USB communication interface unit is: the RXD pin of a CP2102 chip U4 is connected with the anode of a diode D7, the cathode of D7 is connected with the pin 3 of U3, the TXD pin of U3 is connected with the cathode of a diode D3, the anode of D3 is connected with the pin 2 of U3, a resistor R3 is connected in series between the pin 2 and the pin 9 of U3, a pin 4 and a pin 5 of J3 and a pin 6 of J3 which are connected with an upper computer in a USB-AB head mode are connected with the GND pin of U3, a pin 2 and a pin 3 of J3 are connected with the pin D and the pin D + of U3 respectively, a pin 1 of J3 is connected in series with a capacitor C3 and then connected with the GND pin of U3, a pin 1 of J3 is connected with the anode of the diode D3, a diode D3 is connected with the cathode of V3.6, a pin RST of U3 is connected in series with a capacitor C3 and a pin RST 3 and then connected with the pin U3 and a pin 3 are connected with the pin U3, a pin 3 is connected with the pin U3 and a pin 3 is connected with the pin U3, a pin 3 is connected with the pin 3, a pin 3 and a resistor R of U3 and a resistor R3 is connected with the pin 3 and a pin 3 is connected with U3 and a pin 3 is connected with U3 and a pin 3 and a resistor R is connected with U3 and a pin 3 is connected with U3 and a pin 3 in series, a pin 3 and a resistor R is connected with U3 and a pin 3 is connected with U3 and a resistor R is connected with U3 and a pin 3 and a resistor R is connected with U3 and a pin 3 and a resistor R is connected in series;
the key circuit is as follows: the pin 3 of a mechanical point contact key P1 with the model number of 6X6X18 is connected with the pin 50 of U3, the pin 1 of P1 is connected with the pin 2, the pin 4 of P1 is connected with the pin 50 of U3, the pin 2 of P1 is connected with a resistor R15 in series and then connected with the pin 32 of U3, and the resistor R16 is connected between the pin 3 of U3 and the pin 51 of U3 in series;
indicator light circuit: the positive stages of the LED1, the LED2, the LED3, the LED4 and the LED5 are all connected to a pin 51 of the U3, and the negative electrodes of the LED1, the LED2, the LED3, the LED4 and the LED5 are respectively connected with the pins 33, 34, 35, 36 and 37 of the U3 after being respectively connected with resistors R3, R4, R7, R9 and R11 in series.
3. The infrared communication tool of claim 1 or 2, wherein the power supply is battery powered and is powered by a USB interface, preferably USB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122302987.0U CN216486780U (en) | 2021-09-23 | 2021-09-23 | Infrared communication tool convenient to carry and simple to operate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122302987.0U CN216486780U (en) | 2021-09-23 | 2021-09-23 | Infrared communication tool convenient to carry and simple to operate |
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| Publication Number | Publication Date |
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| CN216486780U true CN216486780U (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122302987.0U Active CN216486780U (en) | 2021-09-23 | 2021-09-23 | Infrared communication tool convenient to carry and simple to operate |
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- 2021-09-23 CN CN202122302987.0U patent/CN216486780U/en active Active
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