CN210667162U - Power utilization safety monitoring system - Google Patents
Power utilization safety monitoring system Download PDFInfo
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- CN210667162U CN210667162U CN201922168473.3U CN201922168473U CN210667162U CN 210667162 U CN210667162 U CN 210667162U CN 201922168473 U CN201922168473 U CN 201922168473U CN 210667162 U CN210667162 U CN 210667162U
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Abstract
The utility model discloses an electricity safety monitoring system, which comprises a monitoring terminal, a monitoring host and a computer monitoring server, wherein the monitoring host comprises a controller and a data processing unit, the data processing unit comprises a sampling signal transmission processing circuit and a filter adjusting circuit, the input end of the sampling signal transmission processing circuit is connected with the output end of the controller, the output end of the sampling signal transmission processing circuit is connected with the input end of the filter adjusting circuit, the output end of the filter adjusting circuit is connected with the data input end of the computer monitoring server through an A/D converter, the data processing unit processes sampling signals, avoids the power frequency interference and the network delay influence generated by a power supply system, ensures that the data signals can be stably transmitted in real time, thereby improving the effectiveness of data monitoring, the computer monitoring server carries out real-time comparison monitoring on the sampling data, and timely response is made when abnormal electricity consumption data appear, and the safe operation of the power supply system is ensured.
Description
Technical Field
The utility model relates to an electric energy monitoring technology field especially relates to an electricity safety monitoring system.
Background
Along with the acceleration of the pace of social life, the gathering degree of urban population increases, the population density of cities shows a straight-rising trend, the power consumption also continuously increases, and the problem of power consumption safety is gradually highlighted. The safety power utilization intelligent monitoring system based on the Internet of things is innovative application of Internet of things sensing, mobile interconnection, cloud computing and big data technology in the field of intelligent safety power utilization, and the system is focused on solving the problems of power utilization management and power utilization safety of enterprise units, carries out real-time sensing and macroscopic control on circuit equipment, carries out trend analysis and intelligent early warning on the state of a power grid, provides supervision and decision-making bases for enterprise safety production, and provides a safe, efficient and intelligent power utilization management tool for power supply units and power utilization enterprises.
How to accurately and safely monitor the power consumption equipment and the power supply system in real time is a prerequisite condition for carrying out power consumption safety management and power consumption safety regulation, a plurality of monitoring terminals are usually installed in a power distribution room of the conventional power consumption safety monitoring system to acquire power consumption data, each path of acquired data is sent into a monitoring host to be subjected to centralized processing, then data signals processed by the monitoring host are sent into a computer monitoring server in a wired or wireless mode, and the sampled data is contrastively analyzed by utilizing a computer big data analysis technology. Data signal is at wired transmission in-process, and the power frequency interference that power supply system produced can influence the stability of transmission to current power consumption safety monitoring system need guarantee data signal's real-time nature in transmission process under high load operation, just can guarantee data monitoring's validity, consequently need improve data signal transmission channel.
So the utility model provides a new scheme to solve the problem.
SUMMERY OF THE UTILITY MODEL
In view of the above situation, in order to overcome the defects of the prior art, an object of the present invention is to provide an electrical safety monitoring system.
The technical scheme for solving the problem is as follows: the utility model provides an electricity safety monitoring system, includes monitor terminal, monitoring host and computer monitoring server, monitor terminal's sampling data is sent into handle in the monitoring host, the monitoring host includes controller and data processing unit, data processing unit includes sampling signal transmission processing circuit and filter adjusting circuit, sampling signal transmission processing circuit's input is connected the output of controller, sampling signal transmission processing circuit's output is connected filter adjusting circuit's input, filter adjusting circuit's output passes through the AD converter and connects computer monitoring server's data input end.
Further, the sampling signal transmission processing circuit includes an operational amplifier AR1, an input terminal of the operational amplifier AR1 is connected to an output terminal of the controller through a capacitor C1 and is grounded through a resistor R1, an inverting input terminal of the operational amplifier AR1 is grounded, an output terminal of the operational amplifier AR1 is connected to a non-inverting input terminal of the operational amplifier AR3, an inverting input terminal of the operational amplifier AR3 is connected to an output terminal of the operational amplifier AR2 and is connected to an output terminal of the operational amplifier AR3 and an inverting input terminal of the operational amplifier AR2 through a capacitor C2, an output terminal of the operational amplifier AR3 is connected to a non-inverting input terminal of the operational amplifier AR4 and an input terminal of the filter adjusting circuit through a resistor R2, an inverting input terminal and an output terminal of the operational amplifier AR4 are connected to a non-inverting input terminal of the operational amplifier AR2 and one end of a capacitor C3 through.
Further, the filtering and adjusting circuit comprises a resistor R4 and a capacitor C4, one end of the resistor R4 and one end of the capacitor C4 are connected to the output end of the sampling signal transmission processing circuit, the other end of the resistor R4 is connected to the non-inverting input end of the operational amplifier AR5 through a resistor R5 and is grounded through a capacitor C6, the other end of the capacitor C4 is connected to the output end of the operational amplifier AR5 through a resistor R6 and is connected to the non-inverting input end of the operational amplifier AR5 through a capacitor C5, the inverting input end of the operational amplifier AR5 is connected to one end of the resistors R7 and R8, the other end of the resistor R7 is grounded, and the output end of the operational amplifier AR5 is connected to the other end of the resistor R8 and.
Through the technical scheme, the beneficial effects of the utility model are that:
1. the sampling signal transmission processing circuit adopts the operational amplifiers AR1-AR3 to form differential input, so that the common mode rejection ratio of operational amplifier processing is improved, the processing efficiency of data signals is effectively improved, and the operational amplifier AR4 is adopted to perform voltage following compensation on the signals after differential amplification, so that errors caused by the offset current of the operational amplifier are effectively eliminated, and the data signals are guaranteed to be effective in real time in the transmission process;
2. the filter adjusting circuit eliminates power frequency signals in a wired network by using a wave trap principle, thereby avoiding the influence of power frequency interference generated by a power supply system and ensuring the stability in the data signal transmission process.
Drawings
Fig. 1 is the schematic diagram of the sampling signal transmission processing circuit of the present invention.
Fig. 2 is the schematic diagram of the filter adjusting circuit of the present invention.
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings 1 to 2. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
An electricity safety monitoring system comprises a monitoring terminal, a monitoring host and a computer monitoring server. The monitoring terminal is arranged in the power distribution room and comprises a monitoring probe, a temperature sensor and switching value monitoring equipment, so that safety state parameters such as residual current, temperature, current, voltage, power, frequency and electric degree of a specified electric circuit are sampled, and sampling data of the monitoring terminal is sent into the monitoring host to be processed.
The monitoring host comprises a controller and a data processing unit, wherein the controller is used for carrying out data integration on sampling data of the monitoring terminal, and in order to ensure that data signals can be stably transmitted in real time, the data processing unit is provided with a sampling signal transmission processing circuit and a filtering adjusting circuit to process output signals of the controller. The input end of the sampling signal transmission processing circuit is connected with the output end of the controller, the output end of the sampling signal transmission processing circuit is connected with the input end of the filtering adjusting circuit, and the output end of the filtering adjusting circuit is connected with the data input end of the computer monitoring server through the A/D converter.
As shown in fig. 1, the sampling signal transmission processing circuit includes an operational amplifier AR1, an input terminal of an operational amplifier AR1 is connected to an output terminal of the controller through a capacitor C1 and is grounded through a resistor R1, an inverting input terminal of the operational amplifier AR1 is grounded, an output terminal of the operational amplifier AR1 is connected to a non-inverting input terminal of an operational amplifier AR3, an inverting input terminal of the operational amplifier AR3 is connected to an output terminal of the operational amplifier AR2 and is connected to an output terminal of the operational amplifier AR3 and an inverting input terminal of the operational amplifier AR2 through a capacitor C2, an output terminal of the operational amplifier AR3 is connected to a non-inverting input terminal of the operational amplifier AR4 and an input terminal of the filter adjusting circuit through a resistor R2, an inverting input terminal and an output terminal of the operational amplifier AR4 are connected to a non-inverting input terminal of the operational amplifier AR2 and one end.
The output signal of the controller is isolated by an RC filter formed by a capacitor C1 and a resistor R1 and then sent into an operational amplifier AR1 for amplification, the output signal of the operational amplifier AR1 is sent into an operational amplifier AR3 for processing, and in order to improve the processing capacity of the data signal, the output signal of the operational amplifier AR3 is fed back to the inverted input end of the operational amplifier AR3 through an operational amplifier AR2, so that the two input ends of the operational amplifier AR3 form differential input, the common mode rejection ratio of the operational amplifier processing is improved, and the processing efficiency of the data signal is effectively improved. In order to avoid signal imbalance generated in the operational amplifier process, the operational amplifier AR4 is used for carrying out voltage following compensation on the differentially amplified signals, so that errors caused by the operational amplifier bias current are effectively eliminated, and the real-time effectiveness of data signals in the transmission process is guaranteed.
As shown in fig. 2, the filtering and adjusting circuit includes a resistor R4, a capacitor C4, a resistor R4, one end of a capacitor C4 is connected to the output end of the sampling signal transmission processing circuit, the other end of the resistor R4 is connected to the non-inverting input end of the operational amplifier AR5 through a resistor R5 and is grounded through a capacitor C6, the other end of the capacitor C4 is connected to the output end of the operational amplifier AR5 through a resistor R6 and is connected to the non-inverting input end of the operational amplifier AR5 through a capacitor C5, the inverting input end of the operational amplifier AR5 is connected to one end of resistors R7 and R8, the other end of the resistor R7 is grounded, and the output end of the operational amplifier AR5 is connected to the other end of the resistor R.
In order to avoid the influence of power frequency interference generated by a power supply system on the transmission stability, a 50HZ wave trap is formed by resistors R4-R6 and capacitors C4-C6 in the filtering and adjusting circuit in the operational amplifier process, and a power frequency signal in a wired network is eliminated by utilizing the wave trap principle, so that the stability in the data signal transmission process is ensured. The output signal of the operational amplifier AR5 is sent to the computer monitoring server after being converted by the A/D converter.
The utility model discloses in concrete use, adopt the electrical parameter in the switch board room through the control terminal to send sampled data into centralized processing in the controller. The data processing unit is designed to process the sampling signals, power frequency interference and network delay influence generated by a power supply system are avoided, and the data signals can be stably transmitted in real time, so that the effectiveness of data monitoring is improved. The output signal of the data processing unit is sent into the computer monitoring server after being subjected to digital-to-analog conversion by the A/D converter, and the computer monitoring server carries out real-time comparison monitoring on the sampled data by utilizing the existing big data analysis technology, so that the electricity utilization safety condition of the power distribution room is known and mastered, and the abnormal electricity utilization data can be responded in time, and the safe operation of the power supply system is ensured.
The above description is provided for further details of the present invention with reference to the specific embodiments, which should not be construed as limiting the present invention; to the utility model discloses affiliated and relevant technical field's technical personnel are based on the utility model discloses under the technical scheme thinking prerequisite, the extension of doing and the replacement of operating method, data all should fall within the utility model discloses within the protection scope.
Claims (3)
1. The utility model provides an electrical safety monitoring system, includes monitor terminal, monitoring host computer and computer monitoring server, its characterized in that: the monitoring terminal's sampling data is sent into handle in the monitoring host computer, the monitoring host computer includes controller and data processing unit, the data processing unit includes sampling signal transmission processing circuit and filtering regulation circuit, sampling signal transmission processing circuit's input is connected the output of controller, sampling signal transmission processing circuit's output is connected filtering regulation circuit's input, filtering regulation circuit's output passes through the AD converter and connects computer monitoring server's data input end.
2. The electrical safety monitoring system according to claim 1, wherein: the sampling signal transmission processing circuit comprises an operational amplifier AR1, the input end of an operational amplifier AR1 is connected with the output end of the controller through a capacitor C1 and is grounded through a resistor R1, the inverting input end of the operational amplifier AR1 is grounded, the output end of the operational amplifier AR1 is connected with the non-inverting input end of the operational amplifier AR3, the inverting input end of the operational amplifier AR3 is connected with the output end of the operational amplifier AR2 and is connected with the output end of the operational amplifier AR3 and the inverting input end of the operational amplifier AR2 through a capacitor C2, the output end of the operational amplifier AR3 is connected with the non-inverting input end of the operational amplifier AR4 and the input end of the filter adjusting circuit through a resistor R2, the inverting input end and the output end of the operational amplifier AR4 are connected with the non-inverting input end of the operational amplifier AR2 and one end of a capacitor C36.
3. The electrical safety monitoring system according to claim 2, wherein: the filtering adjusting circuit comprises a resistor R4 and a capacitor C4, one end of the resistor R4 and one end of the capacitor C4 are connected with the output end of the sampling signal transmission processing circuit, the other end of the resistor R4 is connected with the non-inverting input end of an operational amplifier AR5 through a resistor R5 and is grounded through a capacitor C6, the other end of the capacitor C4 is connected with the output end of the operational amplifier AR5 through a resistor R6 and is connected with the non-inverting input end of the operational amplifier AR5 through a capacitor C5, the inverting input end of the operational amplifier AR5 is connected with one end of resistors R7 and R8, the other end of the resistor R7 is grounded, and the output end of the operational amplifier AR5 is connected with the other end of the resistor R8 and.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922168473.3U CN210667162U (en) | 2019-12-02 | 2019-12-02 | Power utilization safety monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922168473.3U CN210667162U (en) | 2019-12-02 | 2019-12-02 | Power utilization safety monitoring system |
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| Publication Number | Publication Date |
|---|---|
| CN210667162U true CN210667162U (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922168473.3U Expired - Fee Related CN210667162U (en) | 2019-12-02 | 2019-12-02 | Power utilization safety monitoring system |
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| CN (1) | CN210667162U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111665385A (en) * | 2020-06-05 | 2020-09-15 | 河南华兴通信技术有限公司 | Communication base station safety monitoring device |
-
2019
- 2019-12-02 CN CN201922168473.3U patent/CN210667162U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111665385A (en) * | 2020-06-05 | 2020-09-15 | 河南华兴通信技术有限公司 | Communication base station safety monitoring device |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200602 Termination date: 20211202 |