CN211086438U

CN211086438U - Real-time output type current and voltage acquisition device

Info

Publication number: CN211086438U
Application number: CN201921752605.0U
Authority: CN
Inventors: 钟留敏; 王玉伟; 许斌; 金伟峰; 徐朋兵
Original assignee: Suzhou Xijieyi Electronics Co ltd
Current assignee: Suzhou Xijieyi Electronics Co ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-07-24
Anticipated expiration: 2029-10-18

Abstract

The utility model relates to a real-time output formula current-voltage acquisition device, include the current detection circuit who links to each other with external input voltage, external input voltage divide into two the tunnel, send to the AD port as the singlechip of equipment control usefulness through current-limiting bleeder circuit all the way, be used for reading voltage signal, another way links to each other with current detection circuit through current-limiting bleeder circuit, the data output part of singlechip links to each other with 485 communication circuit, 485 communication circuit is used for the host computer of communication connection distal end, wherein, current detection circuit includes hall sensor and copper foil, the copper foil is close integrated circuit board IC surface and sets up, the produced magnetic field of hall sensor response copper foil, the linear voltage signal that the hall sensor response produced sends to the AD port of singlechip again, the singlechip reachs the electric current size of flowing through the copper foil according to the voltage signal that the hall sensor response produced. The utility model discloses can realize the witnessed inspections to electric current, voltage, the teletransmission control, the security and the reliability of improve equipment work.

Description

Real-time output type current and voltage acquisition device

Technical Field

The utility model relates to an electronic circuit technical field especially relates to a real-time output formula current-voltage collection system.

Background

In industrial control, the importance of job safety has been placed first. In order to more intuitively grasp the current and voltage conditions in the production process, the current and voltage in the equipment needs to be monitored and displayed in real time so as to be convenient for an operator to analyze. Some current voltage detection products can only be displayed on a local machine and cannot be transmitted to a remote end to be checked, and some current voltage detection products transmit current and voltage values in a serial port mode, but the transmission distance is very limited.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a real-time output formula current-voltage collection system can realize the witnessed inspections to electric current, voltage, the teletransmission control, the security and the reliability of improve equipment work.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides a real-time output type current and voltage acquisition device, which comprises a current detection circuit connected with an external input voltage, wherein the external input voltage is divided into two paths, one path is sent to an AD port of a singlechip for controlling equipment through a current-limiting voltage-dividing circuit, used for reading out voltage signals, the other path is connected with the current detection circuit through a current-limiting voltage division circuit, the data output end of the singlechip is connected with a 485 communication circuit, the 485 communication circuit is used for being in communication connection with a remote upper computer, wherein the current detection circuit comprises a Hall sensor and a copper foil, the copper foil is arranged close to the IC surface of the integrated circuit board, the Hall sensor senses the magnetic field generated by the copper foil, the linear voltage signal generated by the Hall sensor is sent to the AD port of the singlechip, and the single chip microcomputer obtains the current flowing through the copper foil according to the voltage signal generated by the Hall sensor in an induction manner.

Preferably, the current detection circuit is further provided with an amplifying circuit, a filtering circuit, a chopping and correcting circuit, and a linear voltage signal generated by the hall sensor is sent to an AD port of the single chip microcomputer after being amplified, filtered, chopped and corrected, and is converted by an a/D module of the single chip microcomputer to obtain the magnitude of current flowing through the copper foil.

And the data output end of the singlechip is respectively connected with the at least two 4-bit nixie tubes and is used for displaying the acquired current and voltage.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the utility model discloses a real-time output formula current-voltage collection system utilizes the AD of singlechip, combines the current detection circuit, reads voltage, current value in real time, shows at the charactron that shows the usefulness, feeds back data to the host computer in real time through the 485 interface simultaneously, can long-rangely look over whether voltage and electric current are normal to whether the quick judgement equipment work is normal.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic block diagram of a real-time output type current and voltage collecting apparatus according to an embodiment of the present invention.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

This embodiment describes a real-time output current and voltage acquisition apparatus, as shown in fig. 1, which includes a current detection circuit connected to an external input voltage, the external input voltage is divided into two paths, one path is sent to an AD port of a single chip microcomputer for controlling equipment via a current-limiting voltage-dividing circuit, used for reading out voltage signals, the other path is connected with the current detection circuit through a current divider circuit, the data output end of the singlechip is connected with a 485 communication circuit, the 485 communication circuit is used for being in communication connection with a remote upper computer, wherein the current detection circuit comprises a Hall sensor and a copper foil, the copper foil is arranged close to the IC surface of the integrated circuit board, the Hall sensor senses the magnetic field generated by the copper foil, the linear voltage signal generated by the Hall sensor is sent to the AD port of the singlechip, and the single chip microcomputer obtains the current flowing through the copper foil according to the voltage signal generated by the Hall sensor in an induction manner.

In order to make the detection result more accurate, an amplifying circuit, a filtering circuit, a chopping and correcting circuit are further arranged in the current detection circuit, linear voltage signals generated by the Hall sensor are sent to an AD (analog-to-digital) port of the single chip microcomputer after being amplified, filtered, chopped and corrected, and are converted by an A/D (analog-to-digital) module of the single chip microcomputer to obtain the current flowing through the copper foil.

The device is also provided with a current and voltage display module consisting of two 4-bit nixie tubes, and the data output end of the singlechip is respectively connected with the at least two 4-bit nixie tubes and is used for displaying the acquired current and voltage.

To sum up, the utility model discloses a real-time output formula current-voltage collection system utilizes the AD of singlechip, combines current detection circuit, reads voltage, current value in real time, shows at the charactron that shows the usefulness, feeds back data to the host computer in real time through the 485 interface simultaneously, can long-rangely look over whether voltage and electric current are normal to whether the rapid judgement equipment work is normal.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A real-time output type current and voltage acquisition device is characterized by comprising a current detection circuit connected with an external input voltage, wherein the external input voltage is divided into two paths, one path is transmitted to an AD port of a singlechip for controlling equipment through a current-limiting voltage-dividing circuit, used for reading out voltage signals, the other path is connected with the current detection circuit through a current-limiting voltage division circuit, the data output end of the singlechip is connected with a 485 communication circuit, the 485 communication circuit is used for being in communication connection with a remote upper computer, wherein the current detection circuit comprises a Hall sensor and a copper foil, the copper foil is arranged close to the IC surface of the integrated circuit board, the Hall sensor senses the magnetic field generated by the copper foil, the linear voltage signal generated by the Hall sensor is sent to the AD port of the singlechip, and the single chip microcomputer obtains the current flowing through the copper foil according to the voltage signal generated by the Hall sensor in an induction manner.

2. The real-time output type current and voltage acquisition device according to claim 1, wherein the current detection circuit is further provided with an amplification circuit, a filter circuit, a chopping circuit and a correction circuit, and a linear voltage signal generated by the hall sensor is sent to an AD port of the single chip microcomputer after being amplified, filtered, chopped and corrected, and is converted by an a/D module of the single chip microcomputer to obtain the magnitude of current flowing through the copper foil.

3. The real-time output type current and voltage acquisition device according to claim 1 or 2, further comprising at least two 4-bit nixie tubes, wherein the data output end of the single chip microcomputer is respectively connected to the at least two 4-bit nixie tubes for displaying the acquired current and voltage.