CN103324181A - Monitoring and pre-warning system of door of shielding cabinet - Google Patents

Abstract

The invention discloses a monitoring and pre-warning system of a door of a shielding cabinet and relates to the technical field of grid security. The monitoring and pre-warning system of the door of the shielding cabinet comprises a door detecting device, an access monitoring device, a monitoring host and an alarm device, wherein the door detecting device is used for monitoring the opening or the closing of the door, the access monitoring device is used for opening a door of a transformer substation, and a manager determines the number of a shielding cabinet needing to be maintained and the work order number of the maintenance. According to the monitoring and pre-warning system of the door of the shielding cabinet, in a grid maintenance progress, maintenance personnel output the work order number through the access monitoring device, the input work order number corresponds to a work order number signal stored in the monitoring host, and the door is opened through the access monitoring device; after the door of a corresponding shielding cabinet is opened by the maintenance personnel, the door detecting device detects that the door of the cabinet is opened and the number of the shielding cabinet is sent to the monitoring host, the monitoring host judges whether the number of the shielding cabinet corresponds to the stored number of the shielding cabinet, and if the number of the shielding cabinet does not correspond to the stored number of the shielding cabinet, an alerting signal is given by the alarm device.

Description

Screen cabinet door monitoring and early warning system

technical field

The invention relates to the field of power grid safety, in particular to an early warning system for monitoring the doors of screen cabinets.

Background technique

The unattended and intelligentization of substations has become an urgent goal, which puts forward higher requirements for the professional quality of maintenance personnel and monitoring personnel. From the perspective of operation monitoring personnel, the ability to fully control the operation of equipment in the station is a decisive factor affecting the safe and stable operation of the power grid; from the perspective of maintenance personnel, more comprehensive technical means are required for safe and efficient maintenance and commissioning as a guarantee.

However, the current substation maintenance has the following problems:

1) The maintenance personnel can open the door of the secondary screen cabinet in the protection room at will. During the commissioning work, the switch circuit may be accidentally activated to cause the switch to trip, which has serious hidden dangers.

2) In the renovation project of the old station, the warnings and distinctions of the equipment in operation are not clear enough, and the maintenance personnel may accidentally open the operation interval screen cabinet.

3) When multiple tasks are carried out at the same time or the substation is unattended, it is difficult for the monitoring personnel to detect whether there are human or other reasons, such as small animals, external personnel, etc., which cause the screen cabinet to open.

4) After a power grid accident occurs, the methods for judging the personnel, the cause of the accident, and the faulty device are not sufficient, and the means of accountability are not rigorous enough.

Contents of the invention

The purpose of the present invention is to provide a monitoring and early warning system for the door of the screen cabinet, which can realize unattended and intelligent substations, and improve the stability of power grid equipment in the process of power grid maintenance.

The purpose of the present invention is achieved by such a technical solution, which includes a cabinet door detection device for monitoring the opening or closing state of the cabinet door, an access control monitoring device for opening the entrance of the substation, a monitoring host and an alarm device;

The cabinet door detection device is installed on the cabinet door of the screen cabinet, and sends the collected door status to the monitoring host;

The access control monitoring device is installed on the entrance door of the substation and interacts with the data of the monitoring host;

The alarm device receives control instructions from the monitoring host and sends out alarm information.

Further, the cabinet door detection device and the access control monitoring device exchange data with the monitoring host through the RS232 interface.

Further, the cabinet door detection device includes a signal transmitter and more than one disconnect switch, each screen cabinet door is equipped with a disconnect switch, the disconnect switches are electrically connected to the signal transmitter, and the signal transmitter Send the collected door status to the monitoring host.

Further, the alarm device includes a voice alarm and a light alarm.

Further, the system also includes a camera device installed at the entrance of the substation, and the camera device sends the collected image data to the monitoring host.

Further, the system also includes a wireless communication module, and the alarm information sent by the monitoring host is sent to the smart terminal through the wireless communication module.

Further, the smart terminal is a smart phone or a tablet computer.

Owing to adopting above-mentioned technical scheme, the present invention has following advantage:

The management personnel determine the number of the panel cabinet to be maintained and the work order number of the maintenance by monitoring the host computer. During the power grid maintenance work, the maintenance personnel output the work order number through the access control monitoring device, and the input work order number corresponds to the work order number signal stored in the monitoring host, and the access control monitoring device opens the gate. After the maintenance personnel open the corresponding screen cabinet door, the cabinet door detection device detects that the cabinet door is opened, and sends the screen cabinet number to the monitoring host, and the monitoring host judges whether the screen cabinet number corresponds to the stored screen cabinet number, if not Correspondingly, an alarm signal is sent through the alarm device.

Other advantages, objects and features of the present invention will be set forth in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the investigation and research below, or can be obtained from Taught in the practice of the present invention. The objects and other advantages of the invention will be realized and attained by the following description and claims.

Description of drawings

The accompanying drawings of the present invention are described below.

Fig. 1 is a structural schematic diagram of the present invention.

Detailed ways

The present invention will be further described below in conjunction with drawings and embodiments.

Screen cabinet cabinet door monitoring and early warning system, including a cabinet door detection device for monitoring the opening or closing status of the cabinet door, an access control monitoring device for opening the entrance door of the substation, a monitoring host and an alarm device;

The cabinet door detection device is installed on the cabinet door of the screen cabinet, and sends the collected door status to the monitoring host;

The access control monitoring device is installed on the entrance door of the substation and interacts with the data of the monitoring host;

The alarm device is installed in the substation, receives control instructions from the monitoring host, and sends out alarm information.

The management personnel determine the number of the panel cabinet to be maintained and the work order number of the maintenance by monitoring the host computer. During the power grid maintenance work, the maintenance personnel output the work order number through the access control monitoring device, and the input work order number corresponds to the work order number signal stored in the monitoring host, and the access control monitoring device opens the gate. After the maintenance personnel open the corresponding screen cabinet door, the cabinet door detection device detects that the cabinet door is opened, and sends the screen cabinet number to the monitoring host, and the monitoring host judges whether the screen cabinet number corresponds to the stored screen cabinet number, if not Correspondingly, an alarm signal is sent through the alarm device.

The cabinet door detection device and the access control monitoring device exchange data with the monitoring host through the RS232 interface.

The cabinet door detection device includes a signal transmitter and more than one disconnect switch, each screen cabinet cabinet door is equipped with a disconnect switch, and the disconnect switches are electrically connected with the signal transmitter, and the signal transmitter will collect The received cabinet door status is sent to the monitoring host.

The alarm device includes a voice alarm and a light alarm.

The system also includes a camera device installed at the entrance of the substation, and the camera device sends the collected image data to the monitoring host. Managers can retrieve the stored video at any time to understand the real-time situation in the substation.

The system also includes a wireless communication module, and the alarm information sent by the monitoring host is sent to the intelligent terminal through the wireless communication module.

The smart terminal is a smart phone or a tablet computer.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements, without departing from the spirit and scope of the technical solution, should be included in the scope of the claims of the present invention.

Claims (7)

1. shield cabinet cabinet door monitoring early-warning system, it is characterized in that: described system includes for the cabinet door sniffer of the door unlatching of monitoring cabinet or closed condition, is used for opening gate inhibition's supervising device, monitoring host computer and the warning device that transformer station enters;

Cabinet door sniffer is installed on the screen cabinet cabinet door, and the cabinet door state that collects is sent to monitoring host computer;

Gate inhibition's supervising device is installed on transformer station enters, with the monitoring host computer data interaction;

Warning device is installed in the transformer station, receives the steering order of monitoring host computer, sends warning message.

2. screen cabinet cabinet door monitoring early-warning system as claimed in claim 1 is characterized in that: described cabinet door sniffer and gate inhibition's supervising device and monitoring host computer are mutual by the RS232 interface data.

3. screen cabinet cabinet door monitoring early-warning system as claimed in claim 1, it is characterized in that: described cabinet door sniffer includes sender unit and the more than one switch that cut-offs, all be equipped with one on each screen cabinet cabinet door and cut-off switch, cut-off switch and all be electrically connected with sender unit, sender unit is sent to monitoring host computer with the cabinet door state that collects.

4. screen cabinet cabinet door monitoring early-warning system as claimed in claim 1, it is characterized in that: described warning device includes phonetic alarm and visual alarm.

5. screen cabinet cabinet door monitoring early-warning system as claimed in claim 1 is characterized in that: described system also includes and is installed in the enter camera head at place of transformer station, and camera head is sent to monitoring host computer with the view data that collects.

6. screen cabinet cabinet door monitoring early-warning system as claimed in claim 1, it is characterized in that: described system also includes wireless communication module, and the warning message that monitoring host computer sends is sent to intelligent terminal by wireless communication module.

7. screen cabinet cabinet door monitoring early-warning system as claimed in claim 6, it is characterized in that: described intelligent terminal is smart mobile phone or panel computer.

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