CN203573448U

CN203573448U - Staff-only warning device in indoor and outdoor high voltage fields of substation

Info

Publication number: CN203573448U
Application number: CN201320742322.4U
Authority: CN
Inventors: 吕洪才; 杨晓松; 宋海波; 杨东川; 陈象农; 张建宏
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-11-22
Filing date: 2013-11-22
Publication date: 2014-04-30
Anticipated expiration: 2023-11-22

Abstract

The utility model relates to a staff-only warning device in indoor and outdoor high voltage fields of a substation. The technical scheme is as follows: the warning device comprises a human body signal detection and comparison amplification circuit, an execution motion circuit, and a voice alarm circuit, the human body signal detection and comparison amplification circuit detects and amplifies a comer, the voice alarm circuit is controlled via a final control relay KM to give an alarm, and a duty room speaker arranged in a duty room gives an alarm. The beneficial effects of the staff-only warning device are that alarms of high-intensity prompt voices "Danger high voltage, staff only" are given on the spot, a receiving device in the duty room also gives an alarm to remind an operator on duty that someone enters the substation and he needs to check and deal with the condition, the circuit design is concise, the adjustment and maintenance are convenient, and mass production of the warning device is facilitated.

Description

No admittance except on business in transformer station's indoor and outdoor high pressure place alarming device

Technical field

The utility model relates to a kind of substation warning equipment, particularly No admittance except on business in a kind of transformer station's indoor and outdoor high pressure place alarming device.

Background technology

The chamber of transformer station, inside and outside high-voltage field are high voltage installation entirely, their management is had to strict rules and regulations, in the < < of transformer station system of job responsibility > >, wherein having one is exactly " strict implement key management system; strengthen the safety precaution in post, key, forbid that person without license enters ".In the site management system > > of < < key, having several is that " doorway, step-down station (switchgear building) should hang with " place, key, No admittance except on business " sign board ", " entering place, key must strict implement resignation system; the non-lertter of introduction of holding security department and competent authorities' key card or signing and issuing; forbidden to enter place, key ", " should the accredited place, key that enters; by the scope of introduction, look into and look, other position must not contact " etc.Be exactly the operator on duty of transformer station making an inspection tour during equipment, also must two people carry out.Because transformer station is place, key, electric pressure is higher, dangerous large, and general personnel mustn't at will enter, and prevents that electric shock accidents from occurring.

Summary of the invention

The purpose of this utility model is exactly in view of the foregoing defects the prior art has, a kind of transformer station's indoor and outdoor high pressure place is provided No admittance except on business alarming device.

Its technical scheme is: comprise human body signal detection and compare amplifying circuit, the circuit that performs an action, voice alarm circuit, described human body signal detects and compares amplifying circuit and comprises pyroelectric infrared sensor PIR, four high guaily unit LM324, four high guaily unit LM324 comprises that the first amplifying triode A1, the second amplifying triode A2, the 3rd amplifying triode A3 and the 4th amplifying triode A4 are composed in series, and the 4th amplifying triode A4 is connected to by resistance R 13 circuit that performs an action; The described circuit that performs an action comprises that compound transistor V2, compound transistor V3, compound transistor V4, compound transistor V5 and execution relay K M are composed in series, and by carrying out relay K M, controls voice alarm circuit,

Described voice alarm circuit comprises voice sheet KD-95, power amplifier TDA2003, on-the-spot loudspeaker SP1, duty room loudspeaker SP2, frequency modulation transmitter module FDD-5, receiving circuit JDD-5, described voice sheet KD-95 is undertaken being connected with on-the-spot loudspeaker SP1 after power amplification by power amplifier TDA2003, frequency modulation transmitter module FDD-5 is connected in parallel on the output terminal of voice sheet KD-95, by the receiving circuit JDD-5 that is arranged on duty room, receive alerting signal, and report to the police by duty room loudspeaker SP2.

Above-mentioned pyroelectric infrared sensor PIR connects Fresnel Lenses.

The beneficial effects of the utility model are as follows:

1, all weather operations in 24 hours, irrelevant or person without license enters transformer station without authorization, this device starts, the one, send at the scene high strength suggestion voice " Keep Clear-High Voltage, No admittance except on business " warning, at the receiving trap of duty room, also send chimes of doom on the other hand, remind operator on duty to have people to enter transformer station, go out and check processing.Warning circuit is introduced to transformer station and alleviated the workload of operator on duty to substation management, have certain use value;

2, integrated circuit (LM324) and modular structure (voice module, frequency modulation transmitting, receiver module) in circuit, have been adopted, avoid wiring, install simply, and circuit adopts the frequency modulation transmitting of relatively high power to receive, compare amplitude modulation transmitting reception and make this device reliability higher;

3, except the high point of FM reception module price, other devices are dirt cheap, and therefore this apparatus cost is lower;

4,, because circuit design is more succinct, so the regulation of electrical circuit is easy to maintenance, be also convenient to produce in enormous quantities.

Accompanying drawing explanation

Accompanying drawing 1 is infrared sensor of the present utility model, warning and radiating circuit figure;

Accompanying drawing 2 is warning receiving circuit figure of the present utility model;

In upper figure: pyroelectric infrared sensor PIR, four high guaily unit LM324, the first amplifying triode A1, the second amplifying triode A2, the 3rd amplifying triode A3 and the 4th amplifying triode A4, resistance R 1-R22, diode V1, compound transistor V1-V6, execution relay K M, capacitor C 1-C15, voice sheet KD-95, power amplifier TDA2003, on-the-spot loudspeaker SP1, duty room loudspeaker SP2, frequency modulation transmitter module FDD-5, receiving circuit JDD-5, LED.

Embodiment

By reference to the accompanying drawings 1, the utility model will be further described:

The utility model comprises human body signal detection and compares amplifying circuit, the circuit that performs an action, voice alarm circuit, described human body signal detects and compares amplifying circuit and comprises pyroelectric infrared sensor PIR, four high guaily unit LM324, four high guaily unit LM324 comprises that the first amplifying triode A1, the second amplifying triode A2, the 3rd amplifying triode A3 and the 4th amplifying triode A4 are composed in series, and the 4th amplifying triode A4 is connected to by resistance R 13 circuit that performs an action; The described circuit that performs an action comprises that compound transistor V2, compound transistor V3, compound transistor V4, compound transistor V5 and execution relay K M are composed in series, and by carrying out relay K M, controls voice alarm circuit,

Above-mentioned pyroelectric infrared sensor PIR connects Fresnel Lenses.

Principle of work of the present utility model: this device adopts pyroelectric infrared sensor PIR to coordinate the compositions such as additional Fresnel Lenses, four high guaily unit LM324 and frequency modulation radio transmitting FDD-5, receiving circuit JDD-5.The course of work is: pyroelectric infrared sensor PIR is used for surveying the infrared heat that human body sends, and this infrared signal is converted to faint voltage signal.This faint voltage signal is after four high guaily unit LM324 relatively amplifies, promote output compound transistor V4, V5 conducting, carry out relay K M and power up action adhesive, its a pair of normal opened contact is connected the power supply of voice module KD-95 and power amplifier TDA2003, frequency modulation transmitter module FDD-5, the voice signal that voice module produces amplifies and produces high-intensity " Keep Clear-High Voltage, No admittance except on business " phonetic warning through power amplifier, and unrelated person is halted immediately; This voice signal is also delivered to the input end of frequency modulation transmitter module simultaneously, after internal circuit is processed amplification, launches.Now the FM reception module J DD-5 in duty room also receives " Keep Clear-High Voltage, No admittance except on business " phonetic warning simultaneously, and the LED on it is lighted, and reminds operator on duty to have people to enter transformer station, go out and check processing.

Claims

1. No admittance except on business transformer station's indoor and outdoor high pressure place alarming device, it is characterized in that: comprise human body signal detection and compare amplifying circuit, the circuit that performs an action, voice alarm circuit, described human body signal detects and compares amplifying circuit and comprises pyroelectric infrared sensor PIR, four high guaily unit LM324, four high guaily unit LM324 comprises that the first amplifying triode A1, the second amplifying triode A2, the 3rd amplifying triode A3 and the 4th amplifying triode A4 are composed in series, and the 4th amplifying triode A4 is connected to by resistance R 13 circuit that performs an action; The described circuit that performs an action comprises that compound transistor V2, compound transistor V3, compound transistor V4, compound transistor V5 and execution relay K M are composed in series, and by carrying out relay K M, controls voice alarm circuit,

2. No admittance except on business in transformer station's indoor and outdoor high pressure according to claim 1 place alarming device, is characterized in that: described pyroelectric infrared sensor PIR connects Fresnel Lenses.