CN103095338B - Fault detection device of electric energy collectors - Google Patents

Abstract

The invention discloses a fault detection device for an electric energy collector. The existing electric energy collector fault detection device has the problems of limited types of suitable collectors, single function, too simple detection method, and it is difficult to ensure the correctness and reliability of the detection results. The present invention includes a computer loaded with test software, a voltage source, a collector station and a communication module, wherein the collector station: loads the detected collector, and then connects the computer with the communication module; the voltage source: provides the tested collector Power supply; communication module: connect and communicate with the collector station and computer for signal conversion. Due to the use of computer software simulation, the collector can be detected randomly and conveniently, and with the help of the computer, the detection signal can be given more accurately and the detection result can be judged. At the same time, different types of collection can be converted under the action of the communication module. Connect the signal from the transmitter to the computer.

Description

An electric energy harvester fault detection device

technical field

The invention relates to a fault detection device for an electric energy collector.

Background technique

In the smart grid, concentrators, collectors, smart energy meters, master stations and other communication equipment form a centralized meter reading system, realizing the leap from manual meter reading to automatic meter reading. In this system, the collector reads the data of the smart meter and uploads it. In practical applications, it is often encountered that the collector fails and causes the user's power consumption information to be missing or wrong. For this reason, there is a Chinese patent with the application number 201220116988.4 disclosing a portable collector fault detection tool, which includes a meter reading handheld device with a USB interface, and the meter reading handheld device is connected with a power line carrier copy control device through a USB to RS data line. A low-voltage power line is connected to the power line carrier copy controller, and a clamp for connecting the collector is set at the end of the low-voltage power line, and the meter reading handheld is used to send a detection command. If the collector can return electrical information smoothly, it indicates that the collector is working. Normal, otherwise, the collector is faulty. There are many types of existing collectors and there are Type I and Type II. Although the above-mentioned portable fault detection tools can realize simple detection of collector faults, the applicable collector types are limited, and their functions are single. The detection method is too simple, it is difficult to guarantee the correctness and reliability of the detection results.

Contents of the invention

The invention provides a fault detection device for electric energy collectors that can correctly and reliably detect faults of collectors and is suitable for various types of collectors.

In order to solve the above technical problems, the present invention adopts the following technical solutions: a fault detection device for electric energy collectors, including a computer loaded with test software, a voltage source, a collector station and a communication module, wherein the collector station: loaded with Detect the collector, and then connect the computer with the communication module; voltage source: provide power for the collector under test; communication module: connect and communicate with the collector station and the computer for signal conversion.

The test software can simulate the electric energy meter. Through the communication module, the computer sends the detection signal to the collector station and then sends the detection signal to the detected collector. The detection result is judged according to the return signal of the collector. Randomly carry out non-destructive testing on the collector, and with the help of the computer, the detection signal can be given more accurately and the detection result can be judged. At the same time, under the action of the communication module, the signals of different types of collectors can be converted and connected to the computer, making the present invention Different types of collectors can be detected.

Preferably, the voltage source is a programmable voltage source, which includes a signal source and a voltage power amplifier connected to each other. The signal source has an RS232 communication port connected to the computer, and the output voltage value is controlled by the computer. The signal source itself has an operation keyboard, through which the output voltage value of the voltage power amplifier can be controlled. The signal source has the function of measuring and displaying the voltage value.

Preferably, the collector station is provided with a table base for loading the detected collector, and a set of power terminals and a set of RS485 terminals are arranged in the table base.

The communication module includes a concentrator station, and the concentrator station is composed of a concentrator table base, a five-core aviation seat for RS485 communication connection to a collector station, and a DB9 socket for RS232 communication connection to a computer.

Preferably, the communication module includes an infrared communication circuit located at the collector station, a signal conversion board and a serial port server, and the infrared signal of the infrared communication circuit is converted into an RS232 signal by the signal conversion board and connected to the serial port Connect to the computer after the port server. The infrared communication module corresponds closely to the infrared interface of the tested collector. The infrared communication module is connected to the serial port server through a five-core aviation socket, and transmits the data signal of the detected collector to the computer.

As preferably, the communication module includes a carrier communication module and a serial port server, the carrier voltage interface of the carrier communication module is connected to the voltage output terminal of the voltage power amplifier, and is connected to the voltage terminal of the measured collector at the same time, the carrier communication module has RS232 After the communication interface is connected with the serial port server, it is connected to the computer.

Preferably, the communication module includes a GPRS or CDMA communication module, which is connected to the collector by wireless communication on the one hand, and connected to the inherent serial port of the computer on the other hand.

As a preference, there are three collector stations, and the test station of each collector is equipped with a table seat of a type I collector, and a terminal of a type II collector is installed at the same time. Type I collectors and Type II collectors are connected in the same way as other components and are independent, and multiple collector stations can work simultaneously to improve work efficiency.

Preferably, the collector station is provided with a power consumption tester for measuring the power consumption of the detected collector. The power consumption data of the collector combined with the signal data returned by the collector makes the detection results more reliable.

After adopting the above technical solution, the present invention has the following main advantages: the test software can simulate the electric energy meter, through the communication module, the computer sends the detection signal to the collector station and then sends the detection signal to the detected collector, according to the return signal of the collector To judge the test result, due to the use of computer software simulation, the non-destructive test of the collector can be carried out randomly and conveniently, and with the help of the computer, the test signal can be given more accurately and the test result can be judged. At the same time, under the action of the communication module The signals of different types of collectors can be converted and connected to the computer, so that the present invention can detect different types of collectors, including wireless collectors and carrier collectors.

Description of drawings

The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:

Fig. 1 is a structural block diagram of the present invention;

FIG. 2 is a structural block diagram of carrier network communication in Embodiment 1 of the present invention;

Fig. 3 is a structural block diagram of carrier direct connection communication in Embodiment 2 of the present invention;

Fig. 4 is a structural block diagram of infrared signal communication in Embodiment 3 of the present invention;

FIG. 5 is a block diagram of a wireless network communication structure in Embodiment 4 of the present invention.

Detailed ways

Example 1

Referring to Figure 1, a fault detection device for an electric energy harvester includes a computer loaded with test software, a voltage source, a collector station and a communication module, wherein the collector station: loads the detected collector, and is connected by a communication module Computer; voltage source: provide power for the collector under test; communication module: connect and communicate with the collector station and computer for signal conversion. The voltage source is a program-controlled voltage source, which includes a signal source and a voltage power amplifier connected to each other. The signal source has an RS232 communication port connected to the computer, and the output voltage value is controlled by the computer.

The collector station is provided with a table base for loading the detected collector, and a set of power terminals and a set of RS485 terminals are arranged in the table base. The communication module includes a concentrator station, and the concentrator station is composed of a concentrator table base, a five-core aviation seat for RS485 communication connection to a collector station, and a DB9 socket for RS232 communication connection to a computer.

The test software can simulate the electric energy meter. The computer sends the detection signal to the collector station through the concentrator and then sends the detection signal to the detected collector. The return signal of the collector is returned to the computer through the concentrator, and the detection result is judged according to the returned signal. The form of computer software simulation can be used to conduct non-destructive testing on the collector at random, and with the help of the computer, the detection signal can be given more accurately and the detection result can be judged.

In order to improve work efficiency, there are three collector stations, and the test station of each collector is equipped with a table base of type I collector, and a terminal block of type II collector is installed at the same time. Type I collectors and Type II collectors are connected in the same way as other components and are independent.

The collector station is provided with a power consumption tester for measuring the power consumption of the detected collector. The power consumption data of the collector combined with the signal data returned by the collector makes the detection results more reliable.

Example 2

Referring to Fig. 3, compared with embodiment 1, described communication module comprises carrier communication module and serial port server, and the carrier voltage interface of carrier communication module is connected with the voltage output terminal of voltage power amplifier, simultaneously with the voltage terminal of measured collector Connection, the carrier communication module has an RS232 communication interface to connect with the serial port server and then connect to the computer. The computer sends the detection signal to the collector station through the carrier communication module and the serial port server, and then sends the detection signal to the detected collector. The return signal of the collector returns to the computer through the carrier communication module and the serial port server. According to the return signal judge the test results,

Example 3

Referring to Fig. 4, compared with embodiment 1, described communication module comprises an infrared communication line, signal conversion board and serial port server that are positioned at collector station, and the infrared signal of described infrared communication line is converted by signal conversion board Connect the computer after connecting to the serial port server for the RS232 signal. The computer sends the detection signal to the collector station and then sends the detection signal to the detected collector, and the return signal of the collector returns to the computer, and the detection result is judged according to the return signal.

Example 4

Referring to Fig. 5, compared with Embodiment 1, the communication module includes a GPRS or CDMA communication module, which is connected to the collector by wireless communication on the one hand, and connected to the inherent serial port of the computer on the other hand. The computer sends the detection signal to the collector station through the GPRS or CDMA communication module, and then sends the detection signal to the detected collector. The return signal of the collector is returned to the computer through the GPRS or CDMA communication module, and the detection result is judged according to the return signal.

Claims (5)

1. an electric energy collect and acquisition failure detector, is characterized in that: comprise the computer, voltage source, collector station and the communication module that are loaded with testing software,

Wherein collector station: load detected collector, then connect computer by communication module, collector station has three, the test station of each collector is provided with the gauge stand of I type collector, is provided with the binding post of II type collector simultaneously;

Voltage source: for detected collector provides power supply;

Communication module: connect and communication acquisition device station and computer, carry out signal conversion;

Described voltage source is program-controlled voltage source, that includes interconnective signal source and voltage power amplifier, and signal source has the computer described in the connection of RS232 communication port, and output voltage values is by computer control; Described collector station is provided with the gauge stand for loading detected collector, is provided with one group of power supply terminal and one group of RS485 terminal in gauge stand; Described collector station is also provided with the power consumption tester for measuring detected collector power consumption.

2. electric energy collect and acquisition failure detector according to claim 1, it is characterized in that: described communication module comprises concentrator station, described concentrator station is made up of concentrator gauge stand, the five core aero seat connecting collector station for RS485 communication, the DB9 socket that connects computer for RS232 communication.

3. electric energy collect and acquisition failure detector according to claim 1, it is characterized in that: described communication module comprises an infrared communication circuit being positioned at collector station, signal transducer and serial port server, and the infrared signal of described infrared communication circuit is converted to after RS232 is connected to serial port server through signal transducer and connects computer.

4. electric energy collect and acquisition failure detector according to claim 1, it is characterized in that: described communication module comprises carrier communication module and serial port server, the carrier voltage interface of carrier communication module and the voltage output end sub-connection of voltage power amplifier, be connected with the voltage terminal of tested collector, carrier communication module has after RS232 communication interface is connected with serial port server and connects computer simultaneously.

5. electric energy collect and acquisition failure detector according to claim 1, is characterized in that: described communication module comprises GPRS or CDMA communication module, is connected on the one hand with collector wireless telecommunications, is connected to the intrinsic serial port of computer on the other hand.