CN2104439U

CN2104439U - Intelligent alarming photometer

Info

Publication number: CN2104439U
Application number: CN91209580.6U
Authority: CN
Inventors: 王正华
Original assignee: Individual
Current assignee: Individual
Filing date: 1991-06-01
Publication date: 1992-05-13

Abstract

The utility model relates to an intelligent alarming photometer for the automatic detection and the alarm of an environmental light source, which is composed of a control system, a detection device and an alarm, wherein, a delay circuit A and a language circuit B are matched in the control system. The detection device uses a photoresistor GR, an adjustable resistor R, a resistor R1, a transistor Tr, a power switch K, etc. The utility model has the advantages of wide environmental light source application range and good intelligent alarm effect, and the utility model can not be disturbed by non-light source environment.

Description

Intelligent alarming photometer

The utility model is that a kind of environment light source that is used for detects and the caution intelligence Photometer of reporting to the police automatically.

In the prior art, Chinese patent application 88200653 has proposed a kind of Photometer, it adopts phototriode to make detecting element, and single warning circuit control alarm sound, this Photometer is to the narrow application range of environment light source, do not possess the language alarm function, and be subjected to the interference of non-lighting environment easily.

The purpose of this utility model is to provide a kind of caution intelligent Photometer, and it can improve the photometry precision to environment light source effectively, strengthens the environmental interference of language caution effect and the non-light source of eliminating.

The purpose of this utility model is achieved in that the intelligent Photometer of described caution is made up of control system (1), detection means (3) and alarm (2).Wherein, be furnished with delay circuit A(4 in the control circuit (1)) and language circuit B(5); Detection means (3) adopts photo-resistor GR(6).Be furnished with corresponding electronic component simultaneously: adjustable resistance R(7), resistor R 1(8), transistor Tr (9), power switch K(10).

The utility model is owing to adopt photo-resistor GR, makes the wavelength photoreceptor of itself and human eye close, thereby improved accommodation and photometry precision to environment light source; Adopted the language circuit simultaneously, helped having strengthened intelligent caution effect with language form prompting environment light source state; In addition,, the non-ambient interference of light sources is had time-lag action, avoid the chance of external environment to pick up mistake survey and the mistake police that retaining causes Photometer owing to adopted delay circuit.The utility model also has advantage simple in structure and easy to use.

Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.

Fig. 1 is according to the caution intelligence Photometer circuit theory diagrams of this material with novel proposition.

Among the figure: 1, Circuits System, 2, alarm C, 3, detection means, 4, delay circuit A, 5, language circuit B, 6, photo-resistor GR, 7, non-adjustable electric external genitals R, 8, resistor R 1,9, transistor Tr, 10, power switch, 11, direct supply.

During use, power turn-on K switch (10), Circuits System (1) is connected, when the illumination of environment light source is lower than normal value, detection means GR(3) resistance changes, and transistor Tr (9) has signal to output to delay circuit A(4), through delay circuit A(4) handle after, be input to language circuit B(5), make alarm (2) send the language alarm; When the interference of non-ambient light source occurring, delay circuit A(4) measured light source undesired signal is delayed time language circuit B(5) with nowhere to turn to alert signal output, alarm (2) can the sounding alarm.

Claims

1, the intelligent Photometer of a kind of caution is made up of control circuit, alarm device and detecting element, it is characterized in that: be furnished with delay circuit A (4) and language circuit B (5) in the control system (1), detection means (3) adopts photo-resistor GR (6).