CN214278282U

CN214278282U - Modular device for signal conversion of remote mutual inductor

Info

Publication number: CN214278282U
Application number: CN202120270138.9U
Authority: CN
Inventors: 王开瑞; 杨伟英; 高斌; 王丕杰
Original assignee: Shandong Yima Xinnuo Electrical Co ltd
Current assignee: Shandong Yima Xinnuo Electrical Co ltd
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2021-09-24
Anticipated expiration: 2031-02-01

Abstract

The utility model provides a modularization device of teletransmission mutual-inductor signal conversion belongs to a mutual-inductor measured data conversion equipment technical field, which comprises a housin, the casing internal fixation is equipped with the circuit board, singlechip, memory, DA module and power module have been integrated on the circuit board, singlechip and DA module electric connection, DA module output interface and binding post electric connection. The wireless module is arranged on the circuit board and electrically connected with the single chip microcomputer, and an antenna is arranged on the wireless module. The display screen is arranged on the circuit board and electrically connected with the single chip microcomputer circuit. The circuit board is provided with a key, and the key is electrically connected with the I/O interface on the singlechip. Through the utility model discloses the device converts high-voltage transformer radio signal to mutual-inductor analog signal, and the wiring is given the ammeter or is protected equipment successively, has solved high-voltage transformer radio signal and can't directly use for the measurement ammeter troublesome.

Description

Modular device for signal conversion of remote mutual inductor

Technical Field

The utility model belongs to the technical field of a mutual-inductor measured data conversion equipment, concretely relates to modularization device of teletransmission mutual-inductor signal conversion.

Background

Along with the gradual construction of a smart power grid, the power line is measured and monitored, the voltage and the current of the line need to be used, the voltage and the current in the line cannot be directly read, the large current and the high voltage need to be changed into the small current and the low voltage for measurement through a mutual inductor, the electricity meter is secondarily wired through the mutual inductor, however, a long distance exists between the high-voltage current mutual inductor and the high-voltage mutual inductor and the metering electricity meter or the relay protection equipment, the secondary wiring of the mutual inductor needs to be led to the electricity meter or the relay protection equipment, the wiring is troublesome, the mutual inductor signal can be remotely transmitted to the electricity meter or the relay protection equipment through the high-voltage mutual inductor with wireless transmission, the wireless signal of the mutual inductor is converted into the mutual inductor signal nearby at the far-end electricity meter or the relay protection equipment, and then the mutual inductor signal is directly transmitted to the metering electricity meter. Therefore, a conversion device for converting a wireless signal into a transformer signal is needed.

SUMMERY OF THE UTILITY MODEL

To the problem that above-mentioned prior art exists, the utility model provides a modularization device of teletransmission mutual-inductor signal conversion.

In order to solve the above problem, the utility model adopts the following technical scheme:

the multifunctional intelligent card reader comprises a shell, the casing internal fixation is equipped with the circuit board, singlechip, memory, DA module and power module have integrateed on the circuit board, singlechip and DA module electric connection, DA module output interface and binding post electric connection.

The wireless module is arranged on the circuit board and electrically connected with the single chip microcomputer, and an antenna is arranged on the wireless module.

The display screen is arranged on the circuit board and electrically connected with the single chip microcomputer circuit.

The circuit board is provided with a key, and the key is electrically connected with the I/O interface on the singlechip.

According to the above scheme, it is further preferable that the radio module is an NB-IOT module.

Further, the wireless module is a LORA wireless module.

Further, the wireless module is a WiFi wireless module.

Further, the wireless module is a Bluetooth wireless module.

Further, the antenna is an internal antenna or an external antenna.

Furthermore, there are multiple groups of the wiring terminals, and the wiring terminals comprise current terminals, voltage terminals and temperature terminals.

Further, the DA module is a digital-to-analog conversion module, and digital signals are converted into analog signals through the DA module and transmitted to the wiring terminal.

Further, the display screen is a liquid crystal display screen or a digital display screen.

Further, the shell is made of plastic.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model provides a modularization device for teletransmission mutual-inductor signal conversion, through the utility model discloses the device converts mutual-inductor radio signal to the mutual-inductor signal, and the wiring has removed the trouble of remote wiring for the ammeter or keep equipment again.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a block diagram of the electrical principle of the present invention;

fig. 3 is an application scene diagram of the present invention.

In the figure: 1. the device comprises a shell, 2, a wireless module, 3, a circuit board, 4, a single chip microcomputer, 5, a memory, 6, an antenna, 7, a wiring terminal, 8, a DA module, 9, a power module, 10, a display screen, 11 and a key.

Detailed Description

The technical solution of the present invention will be further described below with reference to the accompanying drawings, and the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. The technical solutions of the present invention are changed by those skilled in the art, which all belong to the protection scope of the present invention.

As shown in fig. 1 and 2, the utility model provides a modularization device of teletransmission mutual-inductor signal conversion, which comprises a

housin

1, 1 internal fixation of casing is equipped with

circuit board

3, 4 circuits of singlechip, 5 circuits of memory, DA module 8 circuit and power module 9 have been integrateed to

circuit board

3, 4 circuits of singlechip and 8 circuit electric connection of DA module, 8 output interface of DA module and 7 electric connection of binding post. Be equipped with wireless module 2 on the circuit board 3,

wireless module

2 and 4 electric connection of singlechip, be equipped with antenna 6 on the wireless module 2, antenna 6 can be built-in antenna, also can be external antenna, the embodiment of the utility model provides an in antenna 6 adopts external antenna, external detachable antenna be equipped with display screen 10 on the circuit board 3,

display screen

10 and 4 circuit electric connection of singlechip. And a key 11 is arranged on the circuit board 3, and the key 11 is electrically connected with the circuit I/O interface of the singlechip 4. The single chip microcomputer 4 is an STM32 series single chip microcomputer based on an ARM framework and has the advantages of being high in performance, low in cost, low in power consumption and capable of being applied in an embedded mode. Wireless module 2 is NBIoT module, also can be LORA wireless module, also can be WiFi wireless module, still can be bluetooth wireless module, the embodiment of the utility model provides an in wireless module 2 adopt be LORA wireless module, LORA wireless module has that communication distance is far away, use cost is low, characteristics that the consumption is little, especially adapted short-and-medium distance signal transmission. The voltage, current and temperature signals of the high-voltage transformer are subjected to wireless signal conversion, the wireless signal is in communication connection with the wireless module 2, the wireless module 2 is in circuit connection with the single chip microcomputer 4 on the circuit board 3, and the data are stored in the memory 5 after being processed by the single chip microcomputer 4, so that the conversion process from the wireless signals of the transformer to the digital signals of the transformer is completed. Singlechip 4 is according to program control again, through the conversion of 8 digital analog circuits of DA module to mutual-inductor digital signal, converts mutual-inductor digital signal into analog signal, and the output interface and binding post 7 electric connection of DA module 8 circuit transmit voltmeter, ampere meter and thermometer respectively through the analog signal after DA module 8 conversion.

As shown in fig. 1 and 2, a display screen 10 is arranged on the circuit board 3, and the display screen 10 is electrically connected with the circuit of the single chip microcomputer 4; and a key 11 is arranged on the circuit board 3, and the key 11 is electrically connected with an I/O interface on the singlechip 4. The display screen 10 can be digital display, also can be liquid crystal display, the embodiment of the utility model provides an in the embodiment the display screen 10 adopts liquid crystal display. The shell 1 is made of plastic, and the plastic shell is low in cost, simple in design, very convenient and practical. The I/O interface of singlechip 4 is connected to button 11, button 11 is equipped with upper and lower, sets up and confirms the option key, can set up the module conversion device parameter through button 11, and is right the utility model discloses the voltage signal, current signal and the temperature signal parameter condition and the transformation ratio condition that the device was accepted set up. Binding post 7 has the multiunit, binding post 7 contains current binding post, voltage binding post, temperature binding post. The utility model discloses device received mutual-inductor radio signal is through 4 processing backs of singlechip, again through DA module 8's digital analog conversion, and DA module 8 is the digital analog converter, converts digital signal to continuous analog signal to analog signal after the conversion exports corresponding binding post 7 respectively, and binding post 7 connects corresponding voltmeter, ampere meter and thermometer respectively according to voltage, electric current and temperature. The high-voltage transformer radio signal process the utility model discloses the device conversion converts to the mutual-inductor signal, has solved the transmission of high-voltage wireless mutual-inductor distal end, has saved the trouble from the remote wiring of high-voltage mutual-inductor to the ammeter, the utility model discloses the device design is simple, and is with low costs, and convenient to use accords with completely and converts the designing requirement of mutual-inductor signal into from mutual-inductor radio signal.

Claims

1. Modularization device of teletransmission mutual-inductor signal conversion, its characterized in that:

the intelligent control circuit board comprises a shell (1), wherein a circuit board (3) is fixedly arranged in the shell (1), the circuit board (3) integrates a single chip microcomputer (4), a memory (5), a DA module (8) and a power module (9), the single chip microcomputer (4) is electrically connected with the DA module (8), and an output interface of the DA module (8) is electrically connected with a wiring terminal (7); the wireless module (2) is arranged on the circuit board (3), the wireless module (2) is electrically connected with the single chip microcomputer (4), and an antenna (6) is arranged on the wireless module (2); a display screen (10) is arranged on the circuit board (3), and the display screen (10) is electrically connected with the circuit of the single chip microcomputer (4); the circuit board (3) is provided with a key (11), and the key (11) is electrically connected with an I/O interface on the singlechip (4).

2. The modular apparatus for remote transformer signal conversion of claim 1, wherein:

the wireless module (2) is an NB-IOT module.

3. The modular apparatus for remote transformer signal conversion of claim 1, wherein:

the wireless module (2) is a LORA wireless module.

4. The modular apparatus for remote transformer signal conversion of claim 1, wherein:

the wireless module (2) is a WiFi wireless module.

5. The modular apparatus for remote transformer signal conversion of claim 1, wherein:

the wireless module (2) is a Bluetooth wireless module.

6. The modular apparatus for remote transformer signal conversion of claim 1, wherein:

the antenna (6) is an internal antenna or an external antenna.

7. The modular apparatus for remote transformer signal conversion of claim 1, wherein:

binding post (7) have the multiunit, binding post (7) contain current binding post, voltage binding post, temperature binding post.

8. The modular apparatus for remote transformer signal conversion of claim 1, wherein:

the DA module (8) is a digital-to-analog conversion module, and digital signals are converted into analog signals through the DA module (8) and transmitted to the wiring terminal (7).

9. The modular apparatus for remote transformer signal conversion of claim 1, wherein:

the display screen (10) is a liquid crystal display screen or a digital display screen.

10. The modular apparatus for remote transformer signal conversion of claim 1, wherein:

the shell (1) is made of plastic.