CN212675704U - Low-power-consumption explosion-proof IO signal wireless acquisition terminal based on spread spectrum wireless technology - Google Patents
Low-power-consumption explosion-proof IO signal wireless acquisition terminal based on spread spectrum wireless technology Download PDFInfo
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- CN212675704U CN212675704U CN202021840863.7U CN202021840863U CN212675704U CN 212675704 U CN212675704 U CN 212675704U CN 202021840863 U CN202021840863 U CN 202021840863U CN 212675704 U CN212675704 U CN 212675704U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The utility model discloses an explosion-proof IO signal wireless acquisition terminal of low-power consumption based on spread spectrum wireless technology, central processing unit A2 including STM32 series, be connected with central processing unit A2's serial port, and the model is SX1278_ MODE, a spread spectrum wireless communication chip M1 for data transmission, be connected with central processing unit A2's serial port, and be provided with several ways's IO signal acquisition circuit, and with central processing unit A2, the power supply circuit that spread spectrum wireless communication chip M1 and IO signal acquisition circuit are connected. By the proposal, the utility model has the advantages of simple structure, data transmission are reliable, have very high practical value and spreading value in data acquisition technical field.
Description
Technical Field
The utility model belongs to the technical field of the data acquisition technique and specifically relates to explosion-proof IO signal wireless acquisition terminal of low-power consumption based on spread spectrum wireless technology.
Background
At present, IO signal acquisition terminal among the prior art is mostly wired form, and the transmission adopts the direct transmission mode of cable, and it is applicable to the intensive laying of electrical equipment, but under the comparatively scattered condition of equipment distribution, its long distance transmission has the loss for data acquisition's rate of accuracy reduces.
Therefore, a low-power-consumption explosion-proof IO signal wireless acquisition terminal based on a spread spectrum wireless technology, which is simple in structure and reliable in data transmission, is urgently needed to be provided.
SUMMERY OF THE UTILITY MODEL
To the above problem, an object of the utility model is to provide an explosion-proof IO signal wireless acquisition terminal 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 IO signal wireless acquisition terminal based on the spread spectrum wireless technology comprises an STM32 series central processing unit A2, an SX1278_ MODE spread spectrum wireless communication chip M1, an IO signal acquisition circuit and a power supply circuit, wherein the central processing unit A2 is connected with a serial port of a central processing unit A2 and is used for data transmission, the IO signal acquisition circuit is connected with the serial port of the central processing unit A2 and is provided with a plurality of circuits, and the power supply circuit is connected with the central processing unit A2, the spread spectrum wireless communication chip M1 and the IO signal acquisition circuit;
the IO signal acquisition circuit comprises a photoelectric isolator U1 with a collector connected with a central processing unit A2 and an emitter grounded, a capacitor C2 connected between the collector and the emitter of a photoelectric isolator U1, a resistor R3 with one end connected with the collector of the photoelectric isolator U1 and the other end connected with a power supply circuit, a diode D2 and a resistor R1 with one ends connected with the collector of the photoelectric isolator U1 and the other end connected with the power supply circuit, a diode D9 connected between an input anode and an output cathode of the photoelectric isolator U1, a diode D6, a resistor R2 and a fuse F2 with one ends connected with an output cathode of the photoelectric isolator U1, a diode D4 with one end connected between the diode D6 and the resistor R2 and the other end grounded, and a resistor R45, one end of which is connected with the input anode of the photoelectric isolator U1 and the other end of which is connected with the power supply circuit.
Further, the low-power-consumption explosion-proof IO signal wireless acquisition terminal based on the spread spectrum wireless technology further comprises an RS485 digital interface unit connected with the central processing unit A2 and the power supply circuit;
the RS485 digital interface unit comprises a communication interface chip A3 which is connected with a central processing unit A2 and has the model number of SP3485, and a transient suppression diode D3, an electrostatic diode D1 and a discharge tube F3 which are connected between a pin A and a pin B of the communication interface chip A3 after being connected in parallel.
Furthermore, the power supply circuit comprises a direct current conversion chip A5 with model number TPS5430, a capacitor C28 and a capacitor C29 which are connected in parallel, one end of the capacitor C28 and the other end of the capacitor C29 are connected with the VIN pin of a direct current conversion chip A5, a self-recovery fuse F5 and a diode D5 which are connected in series, a transient suppression diode VD1 with one end connected between the self-recovery fuse F5 and the diode D5 and the other end grounded, a diode D7, a resistor R7 and a resistor R8 which are connected in series, one end of the diode D7 is connected between the self-recovery fuse F5 and the diode D5 and the other end of the diode D5842 is grounded, a triode BG2 with a base connected between the diode D7 and the resistor R7 through a resistor R4 and an emitter grounded, a field effect transistor Q1 with a grid connected with a collector of a triode BG2, a drain connected with the field effect transistor Q8672 with a drain connected with a drain of a drain connected with a, a dc conversion chip a1 of model ME6214a33 connected to the drain of the fet Q1, a capacitor C30 connected between the PH pin and the BOOT pin of the dc conversion chip a5, an inductor L1 and a capacitor C32 connected in series with one end connected to the PH pin of the dc conversion chip a5 and the other end grounded, an electronic R30 and a resistor R31 connected in series with one end connected between the inductor L1 and the capacitor C32 and the other end connected to the drain of the fet Q1, a resistor R42 and a sliding resistor VR1 connected in parallel with one end connected between the inductor L1 and the capacitor C32 and the other end connected to the FB pin of the dc conversion chip a5, and a resistor R41 connected at one end to the FB pin of the dc conversion chip a5 and the other end grounded.
Furthermore, the power supply circuit further comprises a direct current conversion chip A4 connected with the source of the field effect transistor Q1 and having the model number TP4059, and a voltage stabilization chip A6, an isolator ISP1 and a voltage stabilization chip A8 which are sequentially connected and then connected with the direct current conversion chip A1.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model skillfully arranges a multi-path IO signal acquisition circuit and carries out multi-path switching to acquire data; the utility model discloses a spread spectrum wireless communication technique, the switching value signal that will gather carries out the digital sampling and modulates the wireless communication unit after handling to send through the antenna. The utility model discloses receive radio signal by the wireless communication unit to demodulation data, and give central processing unit for the transmission. Moreover, the power supply part of the utility model adopts the modes of voltage transformation, voltage stabilization, filtering and the like to arrange the input alternating current or direct current power supply; and the intelligent switch is adopted for control, so that the intelligent power on/off can be realized according to the requirements of the central processing unit. Thereby achieving more excellent low power consumption performance. To sum up, the utility model has the advantages of simple structure, data transmission are reliable, have very high practical value and spreading value in data acquisition 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 diagram of the central processing unit of the present invention.
Fig. 2 is the circuit schematic diagram of the RS485 digital interface unit 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 circuit of the present invention.
Fig. 5 is the schematic diagram of the IO signal acquisition circuit 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 5, the present embodiment provides a low-power consumption explosion-proof IO signal wireless acquisition terminal based on a spread spectrum wireless technology, which includes an STM32 series central processing unit a2, a serial port connected to the central processing unit a2 and having a model of SX1278_ MODE, a spread spectrum wireless communication chip M1 for data transmission, an IO signal acquisition circuit connected to the serial port of the central processing unit a2 and provided with several circuits, and a power supply circuit connected to the central processing unit a2, the spread spectrum wireless communication chip M1, and the IO signal acquisition circuit. Wherein, any IO signal acquisition circuit comprises a photo-isolator U1 with a collector connected with a central processing unit A2 and an emitter grounded, a capacitor C2 connected between the collector and the emitter of the photo-isolator U1, a resistor R3 with one end connected with the collector of the photo-isolator U1 and the other end connected with a power supply circuit, a diode D2 and a resistor R1 with one ends connected with the collector of the photo-isolator U1 and the other ends connected with the power supply circuit after being connected in series, a diode D9 connected between the input anode and the output cathode of the photo-isolator U1, a diode D6, a resistor R2 and a fuse F2 with one ends connected with the output cathode of the photo-isolator U1 after being connected in series, a diode D4 with one ends connected between the diode D6 and the resistor R2 and the other ends grounded, and a resistor R45, one end of which is connected with the input anode of the photoelectric isolator U1 and the other end of which is connected with the power supply circuit. 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, the power supply provides dc +5V, +4.2V, +3.9V, and +3.3V for each circuit module, and includes a dc conversion chip A5 of model TPS5430, a capacitor C28 and a capacitor C29 connected in parallel with one end connected to the VIN pin of the dc conversion chip A5 and the other end grounded, a self-recovery fuse F5 and a diode D5 connected in series with one end connected to the VIN pin of the dc conversion chip A5, a transient suppression diode VD1 connected at one end between the self-recovery fuse F5 and a diode D5 and the other end grounded, a diode D7, a resistor R7, and a resistor R8 connected in series with one end connected between the self-recovery fuse F5 and a diode D5 and the other end grounded, a transistor BG 48 connected at its emitter to ground via the resistor R4, a fet Q1 connected at its gate to the drain of the transistor BG 5, and a fet Q1 connected to the drain of the transistor BG 5, A field effect transistor Q2 having a gate connected between the resistor R7 and the resistor R8, a dc conversion chip a1 of model ME6214a33 connected to the drain of the field effect transistor Q1, a capacitor C30 connected between the PH pin and the BOOT pin of the dc conversion chip A5, an inductor L1 and a capacitor C32 connected to the PH pin of the dc conversion chip A5 at one end and grounded at the other end after being connected in series, an electronic R30 and a resistor R31 connected between the inductor L1 and the capacitor C32 at one end and the drain of the field effect transistor Q1 at the other end after being connected in series, a resistor R5 and a sliding resistor VR 5 connected between the inductor L1 and the capacitor C32 at one end and the FB pin of the dc conversion chip A5 at the other end, a resistor R5 connected to the FB pin of the dc conversion chip A5 at one end and grounded at the other end, a resistor R5 connected to the source of the field effect transistor Q5 and a 4059 connected to the dc conversion chip A5 after being connected in series, and a dc conversion chip A5 a voltage stabilization chip A5 and A5 after being, Isolator ISP1 and zener chip a 8.
In the embodiment, in addition, for debugging, parameter configuration or data communication, an RS485 digital interface unit is provided, which includes a communication interface chip A3 connected with the central processing unit a2 and having a model SP3485, and a transient suppression diode D3, an electrostatic diode D1 and a discharge tube F3 connected in parallel between the pin a and the pin B of the communication interface chip A3. In this embodiment, a multi-channel IO signal acquisition circuit is used to acquire a switching value signal and feed the switching value signal back to the central processing unit a2, and the central processing unit a2 transmits the acquired digital signal by using the spread spectrum wireless communication chip M1.
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 (4)
1. The low-power-consumption explosion-proof IO signal wireless acquisition terminal based on the spread spectrum wireless technology is characterized by comprising an STM32 series central processing unit A2, a spread spectrum wireless communication chip M1, an IO signal acquisition circuit and a power supply circuit, wherein the central processing unit A2 is connected with a serial port of the central processing unit A2, the model of the central processing unit A2 is SX1278_ MODE, the spread spectrum wireless communication chip M1 is used for data transmission, the IO signal acquisition circuit is connected with a serial port of the central processing unit A2 and is provided with a plurality of circuits, and the power supply circuit is connected with the central processing unit A2, the spread spectrum wireless communication;
the IO signal acquisition circuit comprises a photoelectric isolator U1 with a collector connected with a central processing unit A2 and an emitter grounded, a capacitor C2 connected between the collector and the emitter of a photoelectric isolator U1, a resistor R3 with one end connected with the collector of the photoelectric isolator U1 and the other end connected with a power supply circuit, a diode D2 and a resistor R1 with one ends connected with the collector of the photoelectric isolator U1 and the other end connected with the power supply circuit, a diode D9 connected between an input anode and an output cathode of the photoelectric isolator U1, a diode D6, a resistor R2 and a fuse F2 with one ends connected with an output cathode of the photoelectric isolator U1, a diode D4 with one end connected between the diode D6 and the resistor R2 and the other end grounded, and a resistor R45, one end of which is connected with the input anode of the photoelectric isolator U1 and the other end of which is connected with the power supply circuit.
2. The wireless low-power-consumption explosion-proof IO signal acquisition terminal based on the spread spectrum wireless technology as claimed in claim 1, characterized in that, it further comprises an RS485 digital interface unit connected with the central processing unit A2 and the power supply circuit;
the RS485 digital interface unit comprises a communication interface chip A3 which is connected with a central processing unit A2 and has the model number of SP3485, and a transient suppression diode D3, an electrostatic diode D1 and a discharge tube F3 which are connected between a pin A and a pin B of the communication interface chip A3 after being connected in parallel.
3. The wireless collection terminal of low-power consumption explosion-proof IO signal based on spread spectrum wireless technology as claimed in claim 1, wherein the power supply circuit comprises a DC conversion chip A5 with model number TPS5430, a capacitor C28 and a capacitor C29 with one end connected to VIN pin of the DC conversion chip A5 and the other end grounded after being connected in parallel, a self-recovery fuse F5 and a diode D5 with one end connected to VIN pin of the DC conversion chip A5 after being connected in series, a transient suppression diode VD1 with one end connected between the self-recovery fuse F5 and the diode D5 and the other end grounded, a diode D7, a resistor R7 and a resistor R8 with one end connected between the self-recovery fuse F5 and the diode D5 and the other end grounded, a triode BG2 with its base connected between the diode D7 and the resistor R7 through a resistor R4 and its emitter grounded, a field effect transistor Q1 with its gate connected to collector of the triode BG2, a field-effect transistor Q2 having a drain connected to the drain of the field-effect transistor Q1 and a gate connected between the resistor R7 and the resistor R8, a dc conversion chip a1 of model ME6214a33 connected to the drain of the field-effect transistor Q1, a capacitor C30 connected between the PH pin and the BOOT pin of the dc conversion chip A5, an inductor L1 and a capacitor C32 connected in series with one end connected to the PH pin of the dc conversion chip A5 and the other end grounded, an electronic R30 and a resistor R31 connected in series with one end connected between the inductor L1 and the capacitor C32 and the other end connected to the drain of the field-effect transistor Q1, a resistor R42 and a sliding resistor VR1 connected in parallel with one end connected between the inductor L1 and the capacitor C32 and the other end connected to the FB pin of the dc conversion chip A5, and a resistor R41 connected at one end to the FB pin of the dc conversion chip A5 and the other end grounded.
4. The wireless low-power consumption explosion-proof IO signal acquisition terminal based on spread spectrum wireless technology as defined in claim 3, wherein the power supply circuit further comprises a DC conversion chip A4 connected with the source of the field effect transistor Q1 and having model number TP4059, a voltage stabilization chip A6, an isolator ISP1 and a voltage stabilization chip A8 connected with the DC conversion chip A1 in sequence.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021840863.7U CN212675704U (en) | 2020-08-28 | 2020-08-28 | Low-power-consumption explosion-proof IO signal wireless acquisition terminal based on spread spectrum wireless technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021840863.7U CN212675704U (en) | 2020-08-28 | 2020-08-28 | Low-power-consumption explosion-proof IO signal wireless acquisition terminal based on spread spectrum wireless technology |
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| CN212675704U true CN212675704U (en) | 2021-03-09 |
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| CN202021840863.7U Active CN212675704U (en) | 2020-08-28 | 2020-08-28 | Low-power-consumption explosion-proof IO signal wireless acquisition terminal based on spread spectrum wireless technology |
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