CN211928415U - Universal external controller for internet of things terminal - Google Patents
Universal external controller for internet of things terminal Download PDFInfo
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- CN211928415U CN211928415U CN202020794505.0U CN202020794505U CN211928415U CN 211928415 U CN211928415 U CN 211928415U CN 202020794505 U CN202020794505 U CN 202020794505U CN 211928415 U CN211928415 U CN 211928415U
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Abstract
The utility model discloses an external controller in omnipotent thing networking terminal, include: the system comprises an MCU circuit, a communication circuit, a power module, a PWM-to-0-10V circuit, a UART-to-RS 232 circuit and a UART-to-RS 485 circuit which are respectively and electrically connected with the MCU circuit, the PWM-to-0-10V circuit, the UART-to-RS 232 circuit and the UART-to-RS 485 circuit, and a terminal hardware interface which is respectively and electrically connected with the MCU circuit, the PWM-to-0-10V circuit, the UART-to-RS. The utility model provides a PWM changes 0-10V circuit, UART commentaries on classics RS232 circuit, UART commentaries on classics RS485 circuit can provide multiple interface mode (like PWM output, level signal receiving and dispatching, analog signal receipt, UART serial ports receiving and dispatching) for the next computer equipment, consequently very big has made things convenient for to connect various thing networking terminal equipment, reduce cost facilitates the use.
Description
Technical Field
The utility model relates to a technical field of the thing networking especially relates to an external controller in omnipotent thing networking terminal.
Background
The internet of things has been developed for years, and although the internet of things network technology stands, the internet of things is still in a state of slow progress. The terminals related to the Internet of things are various in types and small in market demand, so that manufacturers cannot follow up the research, development and production of terminal equipment required by the Internet of things; in addition, the original equipment installed in construction is not suitable for the new technology of the internet of things, and cannot be directly accessed, and the reconstruction and installation cost is very high, so that the reconstruction of the old equipment is an important difficult problem which hinders the development of the internet of things. If a network adaptive acquisition or controller is designed for each type of internet of things terminal equipment, the implementation difficulty is high (considering product research and development, production difficulty and the like) due to the problems of multiple types, small demand and the like. Therefore, the adaptation of the terminal equipment and the internet of things technology is accelerated, the terminal cost is reduced, and a key problem which needs to be solved at present is solved.
Accordingly, the prior art is deficient and needs improvement.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the universal external controller for the terminal of the Internet of things is convenient to connect with different terminal devices of the Internet of things, reduces cost and is convenient to use.
The technical scheme of the utility model as follows: the utility model provides a omnipotent thing networking terminal joins externally controller includes: the system comprises an MCU circuit, a communication circuit, a power module, a PWM-to-0-10V circuit, a UART-to-RS 232 circuit and a UART-to-RS 485 circuit which are respectively and electrically connected with the MCU circuit, the PWM-to-0-10V circuit, the UART-to-RS 232 circuit and the UART-to-RS 485 circuit, and a terminal hardware interface which is respectively and electrically connected with the MCU circuit, the PWM-to-0-10V circuit, the UART-to-RS. The MCU circuit is a main processor circuit, has independent operation and multiple interface capabilities and is used for processing information of the whole universal Internet of things terminal plug-in controller, the communication circuit is used for communicating with an Internet of things system, the power supply module is used for supplying power to all circuits, and the terminal hardware interface is used for being connected with terminal equipment. The PWM to 0-10V circuit is used for converting a PWM signal into a 0-10V analog voltage signal; the UART-to-RS 232 circuit is used for converting UART serial port signals and RS232 serial port signals into each other; the UART-to-RS 485 circuit is used for converting UART serial port signals and RS485 serial port signals mutually.
The PWM-to-0-10V circuit, the UART-to-RS 232 circuit, the UART-to-RS 485 circuit and the like can provide various interface modes (such as PWM output, level signal receiving and transmitting, analog signal receiving, UART serial port receiving and transmitting and the like) for lower computer equipment, can receive Internet of things downlink data from the communication circuit, and convert the Internet of things downlink data into Internet of things output data or signals after logic analysis and processing, and output the Internet of things output data or signals to corresponding terminal hardware interfaces; meanwhile, the data or signals from the terminal equipment of the Internet of things can be received, and after logical analysis and processing, the data packets of the Internet of things are produced and output to the communication module to be uploaded to the Internet of things system. Therefore, the connection of various Internet of things terminal devices is greatly facilitated, the cost is reduced, and the use is convenient.
Further, omnipotent thing networking terminal joins externally the controller, still includes: the RTC circuit and the memory interface are respectively and electrically connected with the MCU circuit. The RTC circuit is used for providing a real-time clock source, the memory interface is used for being connected with a Flash memory chip, the memory interface provides a persistent storage capacity for the MCU circuit, and the related configuration parameter information of the universal Internet of things terminal plug-in controller can be stored.
Further, omnipotent thing networking terminal joins externally the controller, still includes: and the functional key circuit is electrically connected with the MCU circuit.
Further, omnipotent thing networking terminal joins externally the controller, still includes: and the MCU circuit, the PWM-to-0-10V circuit, the UART-to-RS 232 circuit and the UART-to-RS 485 circuit are connected with a terminal hardware interface through the interface selection circuit. The interface selection circuit is used for selecting the MCU circuit, the PWM-to-0-10V circuit, the UART-to-RS 232 circuit and the UART-to-RS 485 circuit to be communicated with the terminal hardware interface, and one terminal hardware interface can be connected with different Internet of things terminal equipment through the interface selection circuit.
Furthermore, the interface selection circuit is a jumper resistor, a pin jumper base, a dial switch or a switch circuit.
Further, the power supply module includes: the direct current power supply, the first step-down chip that is connected with direct current power supply respectively, second step-down chip.
Further, the power module further includes: the power supply comprises a mains supply interface, a rectification module connected with the mains supply interface, a filtering module electrically connected with the rectification module, a power management chip connected with the filtering module, a transformer connected with the power management chip and a voltage output interface connected with the transformer; the voltage output interface is electrically connected with the first voltage reduction chip and the second voltage reduction chip respectively; the transformer is connected with the filtering module. The mains supply is changed into low-voltage direct current through the transformer under the action of the rectifying module, the filtering module and the power management chip, the direct current of the voltage output interface is reduced into 3.3V by the first voltage reduction chip, and the direct current of the voltage output interface is reduced into 5V by the second voltage reduction chip.
Further, the power module further includes: the voltage-controlled switch comprises a piezoresistor connected with a zero line and a live line of a mains supply interface, a fuse arranged on the live line of the mains supply interface, an anti-recoil diode arranged between a transformer and a voltage output interface, and an LED indicator lamp connected with the voltage output interface.
Further, the communication circuit is: a WiFi circuit or an RJ45 circuit or an NB-IoT circuit or an RF radio circuit or an FSK radio circuit or an LoRa radio circuit.
Further, the RF radio frequency circuit includes: the MCU circuit comprises a transceiver chip electrically connected with the MCU circuit, a filter chip electrically connected with the transceiver chip, and an RF chip electrically connected with the filter chip.
According to the above technical scheme, the utility model provides an omnipotent external controller in thing networking terminal, PWM changes 0-10V circuit, UART changes RS232 circuit, UART changes RS485 circuit and can provide multiple interface mode (like PWM output, level signal receiving and dispatching, analog signal receiving, UART serial ports receiving and dispatching) for the next computer equipment, consequently very big has made things convenient for to connect various thing networking terminal equipment, reduce cost facilitates the use.
Drawings
FIG. 1 is a functional block diagram of the present invention;
FIG. 2 is a schematic circuit diagram of the MCU circuit and the memory interface of the present invention;
FIG. 3 is a schematic diagram of a functional key circuit of the present invention;
fig. 4 is a circuit schematic of a first portion of the communication circuit of the present invention;
fig. 5 is a circuit schematic of a second portion of the communication circuit of the present invention;
fig. 6 is a schematic circuit diagram of a first portion of a power module of the present invention;
fig. 7 is a schematic circuit diagram of a second portion of the power module of the present invention;
fig. 8 is a circuit connection diagram of the first buck chip of the present invention;
fig. 9 is a circuit diagram of a second buck chip according to the present invention;
FIG. 10 is a schematic circuit diagram of the circuit for converting PWM to 0-10V according to the present invention;
FIG. 11 is a schematic circuit diagram of the UART to RS232 circuit and the UART to RS485 circuit of the present invention;
fig. 12 is a schematic circuit diagram of an interface selection circuit and a terminal hardware interface according to the present invention;
fig. 13 is a schematic circuit diagram of the RTC circuit of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-13, the utility model provides a omnipotent internet of things terminal joins externally controller includes: the circuit comprises an MCU circuit 10, a communication circuit 20, a power module 30, a PWM-to-0-10V circuit 40, a UART-to-RS 232 circuit 50 and a UART-to-RS 485 circuit 60 which are respectively and electrically connected with the MCU circuit 10, the PWM-to-0-10V circuit 40, the UART-to-RS 232 circuit 50 and the UART-to-RS 485 circuit 60, and a terminal hardware interface 80 which is respectively and electrically connected with the MCU circuit 10, the PWM-to-0-10V circuit 40, the UART-to. The MCU circuit 10 is a main processor circuit, has independent operation and multiple interface capabilities, and is used for processing information of the whole universal Internet of things terminal plug-in controller, the communication circuit 20 is used for communicating with the Internet of things system 11, the power module 30 is used for supplying power to each circuit, and the terminal hardware interface 80 is used for being connected with the Internet of things terminal equipment 12. The PWM to 0-10V circuit 40 is used for converting the PWM signal and the 0-10V analog voltage signal into each other; the UART-to-RS 232 circuit 50 is used for converting UART serial port signals and RS232 serial port signals into each other; the UART-to-RS 485 circuit 60 is configured to convert a UART serial signal and an RS485 serial signal to each other.
The PWM to 0-10V circuit 40, the UART to RS232 circuit 50, and the UART to RS485 circuit 60 can provide various interface modes (such as PWM output, level signal transceiving, analog signal receiving, and UART serial port transceiving) for the lower computer device, can receive the internet-of-things downlink data from the communication circuit 20, and after performing logic analysis processing, convert the internet-of-things downlink data into internet-of-things output data or signals, and output the internet-of-things output data or signals to the corresponding terminal hardware interface 80; meanwhile, the data or signals from the terminal equipment 12 of the internet of things can be received, and after logical analysis and processing, internet of things data packets are produced and output to the communication module and uploaded to the internet of things system 11. Therefore, the connection of various internet of things terminal devices 12 is greatly facilitated, the cost is reduced, and the use is convenient.
In this embodiment, the universal external controller for internet of things terminal further includes: an RTC circuit 13 and a memory interface 14 electrically connected to the MCU circuit 10. The RTC circuit 13 is used for providing a real-time clock source, and the memory interface 14 is used for connecting a Flash memory chip, so as to provide a persistent storage capability for the MCU circuit 10, and store the relevant configuration parameter information of the universal Internet of things terminal plug-in controller.
In this embodiment, the universal external controller for internet of things terminal further includes: and the functional key circuit 90 is electrically connected with the MCU circuit.
In this embodiment, the universal external controller for internet of things terminal further includes: the interface selection circuit 15, the MCU circuit 10, the PWM to 0-10V circuit 40, the UART to RS232 circuit 50, and the UART to RS485 circuit 60 are connected with the terminal hardware interface 80 through the interface selection circuit 15. The interface selection circuit 15 is used for selecting the MCU circuit 10, the PWM to 0-10V circuit 40, the UART to RS232 circuit 50 and the UART to RS485 circuit 60 to be communicated with the terminal hardware interface 80, and one terminal hardware interface 80 can be connected with different Internet of things terminal devices 12 through the interface selection circuit 15.
In this embodiment, the interface selection circuit 15 is a dial switch.
In this embodiment, the power module 30 includes: the power supply system comprises a mains supply interface 31, a rectification module 32 connected with the mains supply interface 31, a filtering module 33 electrically connected with the rectification module 32, a power management chip 34 connected with the filtering module 33, a transformer 35 connected with the power management chip 34, and a voltage output interface 36 connected with the transformer 35; the voltage output interface 36 is electrically connected to the first buck chip 37 and the second buck chip 38 respectively; the transformer 35 is connected to the filter module 33. The mains supply is converted into low-voltage direct current through the rectifier module 32, the filter module 33 and the transformer 35 under the action of the power management chip 34, the first voltage reduction chip 37 reduces the direct current of the voltage output interface 36 to 3.3V, and the second voltage reduction chip 38 reduces the direct current of the voltage output interface 36 to 5V. In this embodiment, the type of the transformer is: E13.
in this embodiment, the power module 30 further includes: the voltage-controlled switch comprises a voltage dependent resistor 41 connected with a zero line and a live line of a mains supply interface 31, a fuse 42 arranged on the live line of the mains supply interface 31, an anti-recoil diode 43 arranged between a transformer 35 and a voltage output interface 36, and an LED indicator lamp 44 connected with the voltage output interface 36.
In this embodiment, the communication circuit 20 is: an RF radio frequency circuit, the RF radio frequency circuit comprising: the transceiver chip 21 is electrically connected with the MCU circuit 10, the filter chip 22 is electrically connected with the transceiver chip 21, and the RF chip 23 is electrically connected with the filter chip 22.
To sum up, the utility model provides an omnipotent thing networking terminal joins externally controller, PWM changes 0-10V circuit, UART changes RS232 circuit, UART changes RS485 circuit and can provide multiple interface mode (like PWM output, level signal receiving and dispatching, analog signal receiving, UART serial ports receiving and dispatching) for the next computer equipment, consequently very big has made things convenient for to connect various thing networking terminal equipment, reduce cost facilitates the use.
Claims (9)
1. The utility model provides a omnipotent thing networking terminal joins externally controller which characterized in that includes: the system comprises an MCU circuit, a communication circuit, a power module, a PWM-to-0-10V circuit, a UART-to-RS 232 circuit and a UART-to-RS 485 circuit which are respectively and electrically connected with the MCU circuit, the PWM-to-0-10V circuit, the UART-to-RS 232 circuit and the UART-to-RS 485 circuit, and a terminal hardware interface which is respectively and electrically connected with the MCU circuit, the PWM-to-0-10V circuit, the UART-to-RS.
2. The universal internet of things terminal plug-in controller according to claim 1, further comprising: the RTC circuit and the memory interface are respectively and electrically connected with the MCU circuit.
3. The universal internet of things terminal plug-in controller according to claim 1, further comprising: and the functional key circuit is electrically connected with the MCU circuit.
4. The universal internet of things terminal plug-in controller according to claim 1, further comprising: and the MCU circuit, the PWM-to-0-10V circuit, the UART-to-RS 232 circuit and the UART-to-RS 485 circuit are connected with a terminal hardware interface through the interface selection circuit.
5. The universal Internet of things terminal plug-in controller according to claim 4, wherein the interface selection circuit is a jumper resistor, a pin jumper base, a dial switch or a switch circuit.
6. The universal internet of things terminal plug-in controller according to claim 1, wherein the power module comprises: the direct current power supply, the first step-down chip that is connected with direct current power supply respectively, second step-down chip.
7. The universal internet of things terminal plug-in controller according to claim 6, wherein the power module further comprises: the power supply comprises a mains supply interface, a rectification module connected with the mains supply interface, a filtering module electrically connected with the rectification module, a power management chip connected with the filtering module, a transformer connected with the power management chip and a voltage output interface connected with the transformer; the voltage output interface is electrically connected with the first voltage reduction chip and the second voltage reduction chip respectively; the transformer is connected with the filtering module.
8. The universal internet of things terminal plug-in controller according to claim 7, wherein the power module further comprises: the voltage-controlled switch comprises a piezoresistor connected with a zero line and a live line of a mains supply interface, a fuse arranged on the live line of the mains supply interface, an anti-recoil diode arranged between a transformer and a voltage output interface, and an LED indicator lamp connected with the voltage output interface.
9. The universal internet of things terminal plug-in controller according to claim 1, wherein the communication circuit is an RF radio frequency circuit, and the RF radio frequency circuit comprises: the MCU circuit comprises a transceiver chip electrically connected with the MCU circuit, a filter chip electrically connected with the transceiver chip, and an RF chip electrically connected with the filter chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020794505.0U CN211928415U (en) | 2020-05-13 | 2020-05-13 | Universal external controller for internet of things terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020794505.0U CN211928415U (en) | 2020-05-13 | 2020-05-13 | Universal external controller for internet of things terminal |
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| CN211928415U true CN211928415U (en) | 2020-11-13 |
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| CN202020794505.0U Active CN211928415U (en) | 2020-05-13 | 2020-05-13 | Universal external controller for internet of things terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114281743A (en) * | 2021-11-29 | 2022-04-05 | 浪潮(山东)计算机科技有限公司 | Device and method for converting PCIE (peripheral component interface express) to RS232 interface and TTL (transistor-transistor logic) interface and storage medium |
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2020
- 2020-05-13 CN CN202020794505.0U patent/CN211928415U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114281743A (en) * | 2021-11-29 | 2022-04-05 | 浪潮(山东)计算机科技有限公司 | Device and method for converting PCIE (peripheral component interface express) to RS232 interface and TTL (transistor-transistor logic) interface and storage medium |
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