CN201408257Y - Load Control Terminal Fault Judgment Auxiliary System - Google Patents

Abstract

The utility model discloses a fault judging auxiliary system for a load control terminal, which is characterized in that a palmtop computer PDA is connected with a load control terminal or an electric energy meter through an interface conversion circuit to complete fault judgment and detection of the load control terminal or the electric energy meter. The utility model is simple in structure, but perfect in function, reduces the requirement for on-site staff, makes the fault judgment more intuitive and accurate, can detect some faults that cannot be judged by the previous methods, and improves the work quality and efficiency.

Description

Load Control Terminal Fault Judgment Auxiliary System

Technical field:

The utility model relates to fault judgment of power system operation, in particular to an auxiliary detection system for load control terminal faults developed based on PDA.

Background technique:

Existing load control terminal fault judgment relies more on the terminal box display screen and circuit board indications, etc., and makes comprehensive judgments based on the past experience of the staff, which is not intuitive, and some use laptops and some general-purpose "serial port debugging "Software" test, because the notebook computer is large and delicate, it is not suitable for complex on-site environment, and the serial port general test software is used, the user must memorize the relevant communication protocols, which requires high staff, and manual input and identification It is time-consuming and labor-intensive for the message, and the verification code needs to be calculated, which is prone to errors, making it impossible to use the above methods to intuitively and accurately judge terminal failures under field conditions.

Utility model content:

The technical problem to be solved by this utility model is to provide a load control terminal fault judgment auxiliary system for the above deficiencies, which adopts a palm computer PDA and an external RS-232/RS-485 circuit to form a fault detection tool, which can control the load control terminal or Corresponding detection is made for the failure of the electric energy meter to assist the staff to make correct judgments on the failure point and the cause of the failure.

The technical scheme that the utility model takes is:

A load control terminal fault judgment auxiliary system is characterized in that a palmtop computer PDA is connected with a load control terminal or an electric energy meter through an interface conversion circuit to complete fault judgment and detection of the load control terminal or electric energy meter.

The handheld computer PDA is connected with the electric energy meter in parallel through the interface conversion circuit, reads the data in the electric meter and changes the communication address and clock of the electric meter.

The handheld computer PDA is connected in parallel with the communication line between the electric energy meter and the load control terminal through the interface conversion circuit, and can automatically intercept and display the communication code between the load control terminal and the electric energy meter.

The handheld computer PDA is connected with the external communication serial port of the load control terminal through the interface conversion circuit, so as to obtain the data stored in the load control terminal and check the messages organized by the load control terminal.

The beneficial effect that the utility model can reach is:

1. The utility model introduces PDA to the on-site detection and judgment of "load control terminal" faults, which is different from the previous judgment method of "indicator lights" plus experience, and the judgment of faults is more intuitive and accurate.

2. The utility model is designed for the communication between the electric meter and the terminal. It can directly read the data inside the meter and the terminal, and can detect some faults that cannot be judged by the methods used in the past.

3. The utility model is simple in structure and perfect in function, which reduces the requirements for on-site workers and improves the work quality and efficiency.

4. The utility model can automatically read the data in the meter, automatically change the communication address of the meter, online detect the communication message between the 485 port of the meter and the load control terminal, directly copy the stored data of the load control terminal, monitor the communication between the terminal and the radio station, and monitor the terminal radio station The message information received from the master station, in addition, the monitoring data can also be stored for analysis and processing.

Description of drawings:

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic structural view of Embodiment 1 of the present utility model.

Fig. 3 is a schematic structural view of Embodiment 2 of the present utility model. .

Fig. 4 is a schematic structural view of Embodiment 3 of the present utility model.

Detailed ways:

Below in conjunction with accompanying drawing, the utility model is further described:

Embodiment 1: palmtop computer PDA10 is connected in parallel with watt-hour meter 32 by RS-485 interface conversion circuit 21, palmtop computer PDA10 operating system adopts Windows Mobile 5, start detection, input electric meter address, just can automatically generate corresponding communication command by communication protocol, Read the data in the meter and change the communication address of the meter and the clock of the meter.

Embodiment 2: the palmtop computer PDA10 is connected in parallel with the electric energy meter 32 and the load control terminal 31 through the RS-232 interface conversion circuit 22, and the palmtop computer PDA10 operating system adopts Windows Mobile 5, and the start-up detection can automatically intercept and display the load control terminal 31 and the communication code between the electric energy meter 32.

Embodiment 3: the palmtop computer PDA10 is connected with the external communication serial port of the load control terminal 31 through the RS-485 interface conversion circuit 21, the palmtop computer PDA10 operating system adopts Windows Mobile 5, and the input communication command can obtain the stored data in the load control terminal 31 , and check whether the message organized by the load control terminal 31 is correct.

For some messages whose format or data is wrong, but the cause of the failure cannot be judged, this system can be stored in the handheld computer (PDA) for future analysis. Therefore, although the system is simple in structure, it has complete functions, reduces the requirements for on-site staff, makes fault judgment more intuitive and accurate, and can detect some faults that cannot be judged by previous methods, improving work quality and efficiency.

Claims (4)

1, a kind of load control terminal fault judgement backup system is characterized in that: palm PC PDA is connected with load control terminal or electric energy meter by interface conversion circuit, finishes fault judgement and detection to load control terminal or electric energy meter.

2, load control terminal fault judgement backup system as claimed in claim 1 is characterized in that: palm PC PDA is by interface conversion circuit and electric energy meter and connect.

3, load control terminal fault judgement backup system as claimed in claim 1 is characterized in that: palm PC PDA is by order wire between interface conversion circuit and electric energy meter and load control terminal and connect.

4, load control terminal fault judgement backup system as claimed in claim 1 is characterized in that: palm PC PDA is connected with the external communication serial port of load control terminal by interface conversion circuit.

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