CN213185644U - Wireless direct current receiving and information interaction circuit - Google Patents
Wireless direct current receiving and information interaction circuit Download PDFInfo
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- CN213185644U CN213185644U CN202021494075.7U CN202021494075U CN213185644U CN 213185644 U CN213185644 U CN 213185644U CN 202021494075 U CN202021494075 U CN 202021494075U CN 213185644 U CN213185644 U CN 213185644U
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Abstract
The utility model provides a wireless direct current receiving and information interaction circuit, which comprises a main control module and an RFID read-write module, the RFID reading and writing module is used for ID identification and parameter reading of an electronic tag, data from the main control module are received and transmitted, the receiving module is wirelessly connected with a transmitting module, the transmitting module is electrically connected with a power amplifying module, the transmitting module is electrically connected with an oscillating module through the power amplifying module, the power amplifying module is used for amplifying signal transmission to the transmitting module, the receiving module is used for receiving signal rectification from the transmitting module, and the terminal is charged through the voltage adjusting module after filtering processing. The utility model discloses a wireless direct current signal's receipt and information interaction.
Description
Technical Field
The utility model relates to a wireless direct current technical field, concretely relates to wireless direct current receives and information interaction circuit.
Background
In the prior art, a technology is known in which radio technology for communication has prevailed throughout the world for nearly a hundred years, and from the beginning of radio broadcasting and radio telegraph, development to the present satellite and microwave communication, and popularization to global mobile communication, wireless network, GPRS and the like are advanced. The wireless communication greatly changes the production and living modes of people, and the information-based digital society is not realizable without the wireless communication. In life, electronic equipment such as mobile phones, digital cameras and notebook computers which are seen everywhere are charged in a wired power transmission mode, one end of the charging mode is connected with an alternating current power supply, and the other end of the charging mode is connected with a rechargeable battery of the portable electronic equipment. Since weak signals are transmitted in wireless communication, it is difficult to realize high-power and high-energy transmission. The wired charging mode has many unfavorable places, and equipment socket can be harmd to first frequent plug, may electrocute carelessly in addition at the in-process of plug mouth that charges, hardly realizes having the secret prescription technology of waterproof performance, also is not necessarily suitable for different mobile device sockets, therefore greatly reduced system security, reliability and life.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a wireless dc receiving and information exchanging circuit.
In order to solve the technical problem, the utility model discloses a technical scheme is: a wireless direct current receiving and information interaction circuit comprises a main control module, an RFID read-write module, a receiving module and a voltage regulating module, wherein the RFID read-write module is electrically connected with the main control module, the receiving module is electrically connected with the voltage regulating module, the main control module is used for overall signal control of the circuit, the RFID read-write module is used for ID identification and parameter reading of an electronic tag, receiving data from the main control module and realizing data receiving and sending, the receiving module is wirelessly connected with a transmitting module, the transmitting module is electrically connected with a power amplifying module, the transmitting module is electrically connected with an oscillating module through the power amplifying module, the oscillating module is used for generating square wave signals and further connected with the transmitting module generating resonance through the power amplifying module, the power amplification module is used for amplifying signals and transmitting the signals to the transmitting module, and the receiving module is used for receiving the signals from the transmitting module, rectifying and filtering the signals, and then charging the terminal through the voltage regulation module.
The utility model discloses in, preferably, host system's P3.6 terminal even has triode Q1 and diode D7, triode Q1's base pass through resistance R6 with host system's P3.6 terminal links to each other, triode Q1's base passes through resistance R7 ground connection, triode Q1's projecting pole passes through resistance R8 ground connection, resistance R8 both ends are parallelly connected to have electric capacity C14, triode Q1's projecting pole with host system's P1.0 terminal links to each other, triode Q1's collecting electrode is external to have 12V DC voltage terminal through diode D7, host system's P3.7 terminal is external to have 3.3V DC voltage terminal through resistance R4 and resistance R5.
As shown in fig. 2, in the utility model discloses, preferably, master control module still electric connection has the suggestion module, the suggestion module includes bee calling organ LS1 and triode Q2, master control module's P3.3 terminal pass through resistance R9 with triode Q2's base links to each other, triode Q2's base passes through resistance R10 ground connection, triode Q2's projecting pole ground connection, bee calling organ both ends parallel connection has diode D8, triode Q2's collecting electrode passes through diode D8 even has 12V DC voltage terminal. The main control module can enable the buzzer to work to generate buzzing sound, and then the wireless charging condition can be reflected in time.
The utility model discloses in, preferably, receiving module includes coupling inductance, electric capacity C1, rectifier bridge circuit and steady voltage chip U1, the coupling inductance electric capacity C1 with rectifier bridge circuit's input links to each other, rectifier bridge circuit's output through parallelly connected diode D5, electric capacity C2 with steady voltage chip U1's input links to each other, steady voltage chip U1's output passes through diode D6 ground connection, diode D6 both ends are parallelly connected with inductance L1 and electric capacity C3, electric capacity C3 both ends are parallelly connected with a plurality of nonpolar electric capacities, steady voltage chip U1's Fb terminal is external to have 12V direct current voltage terminal.
In the present invention, preferably, the model of the voltage regulation chip U1 is set to LM2576 HV.
In the present invention, preferably, the chip model of the main control module is set as STC15W401 AS.
The utility model discloses in, preferably, the voltage regulation module includes pressure regulating chip U2, pressure regulating chip U2's input even has 12V direct current voltage terminal, pressure regulating chip U2 passes through electric capacity C8 ground connection, pressure regulating chip U2's output terminal has electric capacity C9 and electric capacity C10 ground connection through parallelly connecting, pressure regulating chip U2's output terminal even has 3.3V direct current voltage terminal.
In the present invention, preferably, the model of the voltage regulating chip U2 is set to LM 1117.
The utility model discloses in, preferably, the NSS terminal of RFID read write module with host system's P1.2 terminal links to each other, the MOSI terminal of RFID read write module with host system's P1.3 terminal links to each other, the MISO terminal of RFID read write module with host system's P1.4 terminal links to each other, the SCK terminal of RFID read write module with host system's P1.5 terminal links to each other.
In the present invention, preferably, the P3.2 terminal of the main control module is externally connected with a 3.3V dc voltage terminal through a resistor R11 and a light emitting diode HS 1.
The utility model has the advantages and positive effects that: through the mutual cooperation among the main control module, the RFID read-write module, the receiving module and the voltage regulating module, the ID identity authentication is firstly carried out by the communication between the RFID read-write module and the main control module, after the ID identity authentication is successful, when high-frequency pulse electricity is applied to the transmitting coil, induced current is generated when the receiving coil is close to the transmitting coil, signals received by the receiving module are subjected to a rectifying process and a filtering process of non-polar capacitance through a rectifying bridge circuit, and finally the terminals are charged through the voltage regulating module, the system is provided with a prompting module which can reflect the wireless charging condition in time, a buzzer prompts, the main control module configures an internal register of the RFID read-write module through an SPI interface, data is transmitted to the RFID read-write module from the main control module through an MOSI port and then transmitted back to the main control module from the RFID read-write module through an MISO port, and then the control of the read-write card is realized to, and the receiving and interaction of wireless direct current signals are facilitated.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a block diagram of an overall circuit module of a wireless dc receiving and information interaction circuit according to the present invention;
fig. 2 is a schematic diagram of the wiring of the prompt module and the main control module of the wireless dc receiving and information interaction circuit of the present invention;
fig. 3 is a schematic circuit diagram of a receiving module of a wireless dc receiving and information interacting circuit according to the present invention;
fig. 4 is a schematic circuit diagram of a voltage regulation module of a wireless dc receiving and information interaction circuit according to the present invention;
fig. 5 is a wiring diagram of the light emitting diode HS1 and the main control module of the wireless dc receiving and information interaction circuit of the present invention;
fig. 6 is a wiring diagram of the RFID read/write module and the main control module of the wireless dc receiving and information interaction circuit of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
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 invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, the utility model provides a wireless direct current receiving and information interaction circuit, which comprises a main control module, an RFID read-write module, a receiving module and a voltage regulation module, wherein the RFID read-write module is electrically connected with the main control module, the receiving module is electrically connected with the voltage regulation module, the main control module is used for the overall signal control of the circuit, the RFID read-write module is used for the ID identification and parameter reading of an electronic tag, the data from the main control module is received and the data is received and transmitted, the receiving module is wirelessly connected with a transmitting module, the transmitting module is electrically connected with a power amplification module, the transmitting module is electrically connected with an oscillation module through the power amplification module, the oscillation module is used for generating square wave signals and then is connected with the transmitting module generating resonance through the power amplification module, the power amplification, the receiving module is used for receiving the signal from the transmitting module, rectifying and filtering the signal, and then charging the terminal through the voltage regulating module.
As shown in fig. 2, in this embodiment, further, a transistor Q1 and a diode D7 are connected to a P3.6 terminal of the main control module, a base of the transistor Q1 is connected to a P3.6 terminal of the main control module through a resistor R6, a base of the transistor Q1 is grounded through a resistor R7, an emitter of the transistor Q1 is grounded through a resistor R8, two ends of the resistor R8 are connected in parallel to a capacitor C14, an emitter of the transistor Q1 is connected to a P1.0 terminal of the main control module, a collector of the transistor Q1 is externally connected to a 12V dc voltage terminal through the diode D7, and a P3.7 terminal of the main control module is externally connected to a 3.3V dc voltage terminal through a resistor R4 and a resistor R5.
In this embodiment, further, main control module still electric connection has the suggestion module, the suggestion module includes bee calling organ LS1 and triode Q2, main control module's P3.3 terminal passes through resistance R9 and triode Q2's base and links to each other, triode Q2's base passes through resistance R10 ground connection, triode Q2's emitter ground connection, bee calling organ both ends parallel connection has diode D8, triode Q2's collecting electrode even has 12V DC voltage terminal through diode D8.
As shown in fig. 3, in this embodiment, the receiving module further includes a coupling inductor, a capacitor C1, a rectifier bridge circuit, and a voltage regulation chip U1, where the coupling inductor, the capacitor C1 are connected to input terminals of the rectifier bridge circuit, output terminals of the rectifier bridge circuit are connected to input terminals of a diode D5, a capacitor C2, and a voltage regulation chip U1, which are connected in parallel, an output terminal of a voltage regulation chip U1 is grounded through a diode D6, two ends of the diode D6 are connected in parallel to an inductor L1 and a capacitor C3, two ends of the capacitor C3 are connected in parallel to a plurality of non-polar capacitors, and an Fb terminal of the voltage regulation chip U1 is externally connected to a 12V dc voltage terminal.
In the present embodiment, further, the model of the regulator chip U1 is set to LM2576 HV.
In this embodiment, further, the chip model of the main control module is set as STC15W401 AS.
As shown in fig. 4, in this embodiment, the voltage regulating module further includes a voltage regulating chip U2, a 12V dc voltage terminal is connected to an input terminal of the voltage regulating chip U2, the voltage regulating chip U2 is grounded through a capacitor C8, an output terminal of the voltage regulating chip U2 is grounded through a capacitor C9 and a capacitor C10 connected in parallel, and an output terminal of the voltage regulating chip U2 is connected to a 3.3V dc voltage terminal.
In the present embodiment, further, the model of the voltage regulating chip U2 is set to LM 1117.
In this embodiment, further, the NSS terminal of the RFID read/write module is connected to the P1.2 terminal of the main control module, the MOSI terminal of the RFID read/write module is connected to the P1.3 terminal of the main control module, the MISO terminal of the RFID read/write module is connected to the P1.4 terminal of the main control module, and the SCK terminal of the RFID read/write module is connected to the P1.5 terminal of the main control module.
As shown in fig. 5, in the present embodiment, further, the P3.2 terminal of the main control module is externally connected with a 3.3V dc voltage terminal through a resistor R11 and a light emitting diode HS 1.
The utility model discloses a theory of operation and working process as follows: the system is provided with a main control module, an RFID read-write module, a receiving module and a voltage regulating module, wherein the RFID read-write module is electrically connected with the main control module, the receiving module is electrically connected with the voltage regulating module, the main control module is used for overall signal control of the circuit, the RFID read-write module is used for ID identification and parameter reading of the electronic tag, receiving data from the main control module and realizing data receiving and sending, the receiving module is wirelessly connected with a transmitting module, the transmitting module is electrically connected with a power amplifying module, the transmitting module is electrically connected with an oscillating module through the power amplifying module, the oscillating module is used for generating square wave signals and further connected with the transmitting module generating resonance through the power amplifying module, the power amplifying module is used for amplifying the signals and transmitting the signals to the transmitting module, and a coupling inductor is used as a receiving coil of, the coupling inductor is connected with the capacitor C1 in parallel to enable the resonance frequency of the receiving coil and the transmitting coil to be the same, when high-frequency pulse electricity is applied to the transmitting coil, the receiving coil generates induction current when approaching the transmitting coil, signals are received by the receiving module, the signals are rectified by the rectifier bridge circuit and are finally charged for the terminal through the voltage adjusting module, the system is provided with a prompting module which can reflect the wireless charging condition in time, buzzing prompting is carried out through a buzzer, the main control module configures the internal register of the RFID read-write module through an SPI interface, data are transmitted to the RFID read-write module from the main control module through an MOSI port, and then the data are transmitted back to the main control module from the RFID read-write module through an MISO port, so that the read-write card is controlled to complete the communication between the RFID read-write module and the main control module, and the system, and the receiving and interaction of wireless direct current signals are facilitated.
The master control module configures the internal register of the RFID read-write module through the SPI interface, thereby realizing the control of the read-write card to complete the communication between the RFID read-write module and the master control module, the chip type of the RFID read-write module adopts MFRC522, the chip has the advantages of low working voltage, small volume and low cost, and the communication between the chip and the main control module adopts serial communication with less connecting lines, the SPI, I2C or serial UART communication mode can be selected according to the actual situation, the pin resource of the main control module can be fully called, the data is transmitted from the main control module to the RFID read-write module through the MOSI port, then, the data is sent back to the main control module from the RFID read-write module through the MISO port, each byte on the two lines is sent to a high bit first, the signal levels on the two data lines must be guaranteed to be stable on a rising edge when a clock signal is sent, the change is allowed only on a falling edge, and N bytes can be continuously read and written. In addition, the first byte sent by the master module to the MFRC522 defines the mode of operation and the register address to be operated on, the highest bit represents the mode of operation, 1 represents read, 0 represents write, the middle six bits (bit1-bit6) represent address, the lowest bit is not reserved, and the default is 0.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.
Claims (10)
1. A wireless direct current receiving and information interaction circuit is characterized by comprising a main control module, an RFID read-write module, a receiving module and a voltage regulating module, wherein the RFID read-write module is electrically connected with the main control module, the receiving module is electrically connected with the voltage regulating module, the main control module is used for overall signal control of the circuit, the RFID read-write module is used for ID identification and parameter reading of an electronic tag, receiving data from the main control module and realizing data receiving and sending, the receiving module is wirelessly connected with a transmitting module, the transmitting module is electrically connected with a power amplifying module, the transmitting module is electrically connected with an oscillating module through the power amplifying module, the oscillating module is used for generating square wave signals and further connected with the transmitting module generating resonance through the power amplifying module, the power amplification module is used for amplifying signals and transmitting the signals to the transmitting module, and the receiving module is used for receiving the signals from the transmitting module, rectifying and filtering the signals, and then charging the terminal through the voltage regulation module.
2. The wireless direct current receiving and information interaction circuit as claimed in claim 1, wherein a P3.6 terminal of the main control module is connected to a transistor Q1 and a diode D7, a base of the transistor Q1 is connected to a P3.6 terminal of the main control module through a resistor R6, a base of the transistor Q1 is connected to ground through a resistor R7, an emitter of the transistor Q1 is connected to ground through a resistor R8, two ends of the resistor R8 are connected in parallel to a capacitor C14, an emitter of the transistor Q1 is connected to a P1.0 terminal of the main control module, a collector of the transistor Q1 is externally connected to a 12V dc voltage terminal through the diode D7, and a P3.7 terminal of the main control module is externally connected to a 3.3V dc voltage terminal through a resistor R4 and a resistor R5.
3. The wireless direct current receiving and information interaction circuit according to claim 1, wherein the main control module is further electrically connected with a prompt module, the prompt module comprises a buzzer LS1 and a transistor Q2, the P3.3 terminal of the main control module is connected with the base of the transistor Q2 through a resistor R9, the base of the transistor Q2 is grounded through a resistor R10, the emitter of the transistor Q2 is grounded, two ends of the buzzer are connected in parallel with a diode D8, and the collector of the transistor Q2 is connected with a 12V direct current voltage terminal through the diode D8.
4. The wireless direct current receiving and information interaction circuit according to claim 1, wherein the receiving module comprises a coupling inductor, a capacitor C1, a rectifier bridge circuit and a voltage regulation chip U1, the coupling inductor, the capacitor C1 and an input end of the rectifier bridge circuit are connected, an output end of the rectifier bridge circuit is connected with an input end of the voltage regulation chip U1 through a diode D5, a capacitor C2 and a diode D6 which are connected in parallel, an output end of the voltage regulation chip U1 is grounded through a diode D6, two ends of the diode D6 are connected in parallel with an inductor L1 and a capacitor C3, two ends of the capacitor C3 are connected in parallel with a plurality of non-polar capacitors, and an Fb terminal of the voltage regulation chip U1 is externally connected with a 12V direct current voltage terminal.
5. The wireless direct current power receiving and information interaction circuit as claimed in claim 4, wherein the model of the voltage regulation chip U1 is LM2576 HV.
6. The wireless direct current power receiving and information interaction circuit of claim 1, wherein the chip type of the main control module is set as STC15W401 AS.
7. The wireless direct current receiving and information interaction circuit as claimed in claim 1, wherein the voltage regulation module comprises a voltage regulation chip U2, the input end of the voltage regulation chip U2 is connected with a 12V direct current voltage terminal, the voltage regulation chip U2 is grounded through a capacitor C8, the output terminal of the voltage regulation chip U2 is grounded through a capacitor C9 and a capacitor C10 which are connected in parallel, and the output terminal of the voltage regulation chip U2 is connected with a 3.3V direct current voltage terminal.
8. The wireless direct current receiving and information interaction circuit according to claim 7, wherein the model of the voltage regulating chip U2 is LM 1117.
9. The wireless direct current receiving and information interacting circuit according to claim 1, wherein an NSS terminal of the RFID read-write module is connected to a P1.2 terminal of the main control module, an MOSI terminal of the RFID read-write module is connected to a P1.3 terminal of the main control module, a MISO terminal of the RFID read-write module is connected to a P1.4 terminal of the main control module, and an SCK terminal of the RFID read-write module is connected to a P1.5 terminal of the main control module.
10. The wireless direct current receiving and information interaction circuit as claimed in claim 1, wherein the P3.2 terminal of the main control module is externally connected with a 3.3V direct current voltage terminal through a resistor R11 and a light emitting diode HS 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021494075.7U CN213185644U (en) | 2020-07-23 | 2020-07-23 | Wireless direct current receiving and information interaction circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021494075.7U CN213185644U (en) | 2020-07-23 | 2020-07-23 | Wireless direct current receiving and information interaction circuit |
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| Publication Number | Publication Date |
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| CN213185644U true CN213185644U (en) | 2021-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021494075.7U Active CN213185644U (en) | 2020-07-23 | 2020-07-23 | Wireless direct current receiving and information interaction circuit |
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| CN (1) | CN213185644U (en) |
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