CN211930629U - Low-power-consumption explosion-proof wireless transmitter based on spread spectrum wireless technology - Google Patents
Low-power-consumption explosion-proof wireless transmitter based on spread spectrum wireless technology Download PDFInfo
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- CN211930629U CN211930629U CN202021842602.9U CN202021842602U CN211930629U CN 211930629 U CN211930629 U CN 211930629U CN 202021842602 U CN202021842602 U CN 202021842602U CN 211930629 U CN211930629 U CN 211930629U
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Abstract
The utility model discloses an explosion-proof wireless transmitter of low-power consumption based on spread spectrum wireless technology, central controller A1 including STM32 series, be connected with central controller A1's serial port, an ADC converter A4 for external sensor, be connected with central controller A1's serial port, and the model is SX1278_ MODE, a spread spectrum wireless communication chip M1 for data transmission, and with central controller A1, the power supply circuit that ADC converter A4 and spread spectrum wireless communication chip M1 are connected. By the proposal, the utility model has the advantages of simple structure, transmission are reliable, have very high practical value and spreading value in data transmission technical field.
Description
Technical Field
The utility model belongs to the technical field of the data transmission technique and specifically relates to explosion-proof wireless transmitter of low-power consumption based on spread spectrum wireless technology.
Background
Transmitters have evolved from sensors, all of which are capable of outputting a standard signal. The standard signal is a signal having a form and quantity in a range conforming to the international standard. The output signal type can be divided into a current output type and a voltage output type; at present, transmitters in the prior art are all in a wired form, and data transmission of the transmitters all has loss.
Therefore, it is urgently needed to provide a low-power consumption explosion-proof wireless transmitter based on the spread spectrum wireless technology, which has a simple structure and reliable data transmission.
SUMMERY OF THE UTILITY MODEL
To the above problem, an object of the utility model is to provide an explosion-proof wireless transmitter of low-power consumption based on spread spectrum wireless technology, the utility model discloses a technical scheme as follows:
the low-power-consumption explosion-proof wireless transmitter based on the spread spectrum wireless technology comprises an STM32 series central controller A1, an ADC converter A4 connected with a serial port of a central controller A1 and used for an external sensor, a spread spectrum wireless communication chip M1 connected with a serial port of a central controller A1 and used for data transmission, and a power supply circuit connected with the central controller A1, the ADC converter A4 and the spread spectrum wireless communication chip M1;
the power supply circuit comprises a direct current conversion chip A5 with the model number of MP2451, a diode D3 and a fuse F3 which are connected in series, wherein one end of the diode D3 and the fuse F3 are connected with the VIN pin of a direct current conversion chip A5, a resistor R36 connected between the VIN pin and the EN pin of the direct current conversion chip A5, a capacitor R62, a capacitor C21 and a transient suppression diode D8 which are connected in parallel, one end of the resistor R37 is connected with the EN pin of a direct current conversion chip A5, the other end of the resistor R37 is connected with ground, a resistor R35 connected with one end of the resistor R5 and the FB pin and the other end of the resistor R35 is connected with ground, a capacitor C48 connected between the BST pin and the SW pin of the direct current conversion chip A5, an inductor L6 and a resistor R34 connected between the SW pin and the FB pin of the direct current conversion chip A5 after series, a capacitor C58 6 and a capacitor C20, and a capacitor C49 connected in parallel between the resistors R34.
Furthermore, the power supply circuit further comprises a voltage stabilizing chip A7 which is connected with the ADC A4 and has the model number of ME6214A33, a field effect transistor Q2 of which the source is connected with the VIN pin of the voltage stabilizing chip A7 through a fuse F1 and the gate is grounded through a resistor R54, a capacitor C58 of which one end is connected with the VIN pin of the voltage stabilizing chip A7 and the other end is grounded, a diode D5 connected between the gate and the source of the field effect transistor Q2, and a capacitor C51 of which one end is connected with the drain of the field effect transistor Q2 and the other end is grounded.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model skillfully arranges the ADC converter to collect voltage and current analog signals, convert the analog signals into digital signals and transmit the digital signals to the central processing unit; and then transmitted by using a spread spectrum wireless communication chip M1, and the device is suitable for analog signal transmitters of a current output type and a voltage output type. To sum up, the utility model has the advantages of simple structure, transmission are reliable, have very high practical value and spreading value in data transmission technical field.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as a limitation of the scope of protection, and for those skilled in the art, other related drawings may be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural diagram of the central controller of the present invention.
Fig. 2 is a schematic diagram of the digital-to-analog conversion circuit of the present invention.
Fig. 3 is a schematic diagram of the power supply circuit of the present invention.
Fig. 4 is a schematic diagram of the spread spectrum wireless communication chip of the present invention.
Detailed Description
To make the objectives, technical solutions and advantages of the present application more clear, the present invention will be further described with reference to the accompanying drawings and examples, and embodiments of the present invention include, but are not limited to, the following examples. 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 application.
Examples
As shown in fig. 1 to 4, the present embodiment provides a low power consumption explosion-proof wireless transmitter based on spread spectrum wireless technology, which includes a central controller a1 of STM32 series, an ADC converter a4 connected to a serial port of the central controller a1 for an external sensor, a serial port of the central controller a1 and having a model of SX1278_ MODE, a spread spectrum wireless communication chip M1 for data transmission, and a power supply circuit connected to the central controller a1, the ADC converter a4 and the spread spectrum wireless communication chip M1. It should be noted that the present embodiment is based on structural improvement, and does not improve a software program, and the present embodiment can be implemented by adopting a conventional program segment combination, which is not described herein again. In addition, the embodiment adopts the cast aluminum shell with the protection grade of IP65 or above to realize the water and explosion prevention of the equipment.
In this embodiment, in order to provide dc +5V, the dc converter includes a dc conversion chip a5 with model MP2451, a diode D3 and a fuse F3 connected in series with one end connected to the VIN pin of the dc conversion chip a5, a resistor R36 connected between the VIN pin and the EN pin of the dc conversion chip a5, a capacitor R62, a capacitor C21 and a transient suppression diode D8 connected in parallel with one end connected to the VIN pin of the dc conversion chip a5 and the other end grounded, a resistor R37 connected with the EN pin of the dc conversion chip a5 and the other end grounded, a resistor R35 connected with one end connected to the FB pin of the dc conversion chip a5 and the other end grounded, a capacitor C48 connected between the BST pin and the SW pin of the dc conversion chip a5, an inductor L6 and a resistor R34 connected in series with one end connected between the SW pin and the FB pin of the dc conversion chip a5, and a resistor R34 and one end connected between the inductor L6 and the resistor R34, The voltage stabilizing circuit comprises a capacitor C20 with the other end grounded, a capacitor C49 connected in parallel between resistors R34, a voltage stabilizing chip A7 which is connected with an ADC converter A4 and has the model number of ME6214A33, a field effect tube Q2 with the source connected with the VIN pin of the voltage stabilizing chip A7 through a fuse F1 and the gate grounded through the resistor R54, a capacitor C58 with one end connected with the VIN pin of the voltage stabilizing chip A7 and the other end grounded, a diode D5 connected between the gate and the source of the field effect tube Q2, and a capacitor C51 with one end connected with the drain of the field effect tube Q2 and the other end grounded.
In the embodiment, an ADC converter is used to collect voltage or current analog signals of the sensor, convert the analog signals into digital signals, and transmit the digital signals to a central processing unit; in this embodiment, the cpu sends the data with transmission to the spread spectrum wireless communication chip M1 for transmission.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and are not limitations on the protection scope of the present invention, but all the changes made by adopting the design principle of the present invention and performing non-creative work on this basis shall fall within the protection scope of the present invention.
Claims (2)
1. The low-power-consumption explosion-proof wireless transmitter based on the spread spectrum wireless technology is characterized by comprising an STM32 series central controller A1, an ADC converter A4, an SX1278_ MODE and a spread spectrum wireless communication chip M1, wherein the central controller A1 is connected with a serial port of a central controller A1 and is used for an external sensor, the serial port of the central controller A1 is connected with the ADC converter A4, and the power supply circuit is connected with the central controller A1, the ADC converter A4 and the spread spectrum wireless communication chip M1;
the power supply circuit comprises a direct current conversion chip A5 with the model number of MP2451, a diode D3 and a fuse F3 which are connected in series, wherein one end of the diode D3 and the fuse F3 are connected with the VIN pin of a direct current conversion chip A5, a resistor R36 connected between the VIN pin and the EN pin of the direct current conversion chip A5, a capacitor R62, a capacitor C21 and a transient suppression diode D8 which are connected in parallel, one end of the resistor R37 is connected with the EN pin of a direct current conversion chip A5, the other end of the resistor R37 is connected with ground, a resistor R35 connected with one end of the resistor R5 and the FB pin and the other end of the resistor R35 is connected with ground, a capacitor C48 connected between the BST pin and the SW pin of the direct current conversion chip A5, an inductor L6 and a resistor R34 connected between the SW pin and the FB pin of the direct current conversion chip A5 after series, a capacitor C58 6 and a capacitor C20, and a capacitor C49 connected in parallel between the resistors R34.
2. The wireless transmitter of claim 1, wherein the power supply circuit further comprises a voltage regulator chip A7 of model ME6214A33 connected to the ADC converter A4, a FET Q2 having a source connected to VIN pin of the voltage regulator chip A7 through a fuse F1 and a gate connected to ground through a resistor R54, a capacitor C58 having one end connected to VIN pin of the voltage regulator chip A7 and the other end connected to ground, a diode D5 connected between the gate and the source of the FET Q2, and a capacitor C51 having one end connected to the drain of the FET Q2 and the other end connected to ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021842602.9U CN211930629U (en) | 2020-08-28 | 2020-08-28 | Low-power-consumption explosion-proof wireless transmitter based on spread spectrum wireless technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021842602.9U CN211930629U (en) | 2020-08-28 | 2020-08-28 | Low-power-consumption explosion-proof wireless transmitter based on spread spectrum wireless technology |
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| CN211930629U true CN211930629U (en) | 2020-11-13 |
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| CN202021842602.9U Active CN211930629U (en) | 2020-08-28 | 2020-08-28 | Low-power-consumption explosion-proof wireless transmitter based on spread spectrum wireless technology |
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