CN2543034Y

CN2543034Y - Improved infrared detector

Info

Publication number: CN2543034Y
Application number: CN 02229863
Authority: CN
Inventors: 洪能旗
Original assignee: HUANJIN ENTERPRISE CO Ltd
Current assignee: HUANJIN ENTERPRISE CO Ltd
Priority date: 2002-04-05
Filing date: 2002-04-05
Publication date: 2003-04-02
Anticipated expiration: 2012-04-05

Abstract

The utility model relates to a modified infrared detector, comprising a light projector, a photoreceptor, a RF transmitting apparatus and a RF autodyne, wherein the RF launching apparatus consists of an A/D transducer, a CPU procedure encoder and a RF transmitter; the RF autodyne consists of a RF receiver, a CPU procedure decoder and a numerical monitor; a coding signal of the RF transmitter can be received by the RF receiver. The utility model has the advantages that only one construction worker is needed to complete a standard job, and designing purposes of lowering the construction labor time and cost, a fast and convenient construction and excellent construction quality can be realized in that the construction worker can acquaint the data changes of the light projector and the photoreceptor in time and responds to the validity of angular adjustment direction by angular adjustment movements of the light projector and the photoreceptor.

Description

Modified form ultrared sensing device

Affiliated technical field

The utility model is about a kind of modified form ultrared sensing device, refers to a kind of construction number, man-hour and cost of reducing especially, convenient, fast construction, and the good practicality structure of construction quality.

Background technology

The ultrared sensing device must include a light projector and a light-receiving device, light projector has projection infrared light beam ability, and light beam must be earlier through lens light gathering row ejaculation again, make beam energy concentrate and projection distance far away, the light beam projection distance of existing product does not wait for from 20 to 250 meters, light-receiving device then has the light projector of acceptance and throws the infrared light beam ability, and the light beam power that light-receiving device is accepted can show its numerical values recited by ammeter, because infrared light beam must penetrate through lens light gathering earlier again, so most beam energy concentrates in the limited angle scope, therefore light projector and light-receiving device calibration mutually when installing fixedly, if a square degree deviation is arranged, then the beam energy accepted of light-receiving device will weaken, and influence its detecting function.

So the light projector and the light-receiving device of existing detector all have level and vertical angle adjusting means, both sides can reach mutual alignment purpose by angular adjustment apparatus, light projector can be penetrated and the receptible beam energy of light-receiving device all can reach maximal value, when it carries out calibrating operation, must be responsible for adjusting light projector and light-receiving device respectively by two constructors, when both distances are far away, the constructor who adjusts light-receiving device sees through wireless tranceiver again, it is responded to the constructor who adjusts light projector with numerical values recited and variability thereof that ammeter records light-receiving device, for the reference frame of collimation angle, so this detector and calibrating mode thereof but have following shortcoming:

1. construction number is many: during its calibrating operation, must be responsible for adjusting light projector and light-receiving device respectively by two constructors at least, and the constructor of adjustment light-receiving device must respond the numerical values recited and the variability thereof of light-receiving device at any time to the constructor who adjusts light projector.

2. waste construction man-hour and cost: the constructor who adjusts light projector must wait the numerical value change that the constructor responded of light-receiving device to be adjusted, so both can't install fixed operation synchronously, and the reaction of adjustment situation between the two is also poor if having time, come transmission information and contact if see through intercom again, more can't immediate reaction adjust the result, and must carry out the angular setting action wave expense many times of Xu back and forth, not only waste is constructed man-hour, also wastes construction cost.

3. construction is inconvenient: the constructor also must see through intercom simultaneously and transmit calibration result except reading the numerical value of light-receiving device with ammeter, and it is extremely inconvenient to execute its construction operation.

4. construction quality is indefinite: the calibration quality of this detector often because of constructor's operating technique and proficiency difference to some extent, and can't reach the quality requirements of homogeneous.

In view of this, the utility model person designs the utility model modified form ultrared sensing device, so as to providing a kind of construction number, man-hour and cost of reducing, convenient, fast construction, and the good structure of construction quality.

The content of utility model

The fundamental purpose of the utility model design is: a kind of construction number that reduces is provided, man-hour and cost, easy construction, fast, and the modified form ultrared sensing device that construction quality is good, it is by light projector, light-receiving device, RF emitter and RF receiving trap are formed, and the RF emitter includes A/D converter, CPU program coder and RF transmitter, the RF receiving trap includes the RF receiver, CPU program demoder and numerical value display, and the RF receiver can receive the coded signal of RF transmitter, because the constructor can be with the angular setting action of light projector and light-receiving device, immediately learn its data variation, so can react immediately to the correctness of angular setting direction, only do not need a constructor can finish calibrating operation, and can reach reduction construction man-hour and cost simultaneously, easy construction, fast, and the good purpose of design of construction quality.

Description of drawings

Below in conjunction with drawings and Examples the utility model is done detailed description further:

Fig. 1 is the circuit block diagram of the utility model one preferred embodiment.

Fig. 2 is the detailed circuit diagram of the utility model one preferred embodiment.

Fig. 3 is the circuit block diagram of the another preferred embodiment of the utility model.The figure number part:

1 ultrared sensing device, 10 light projectors

2 infrared rays receivers, 20 light-receiving devices

30RF emitter 31A/D converter

32CPU program coder 33RF transmitter

40RF receiving trap 41RF receiver

42D/A converter 43CPU program demoder

44 numerical value displays, 50 light-receiving devices

The 60RF emitter

Specific embodiment

The utility model is about a kind of modified form ultrared sensing device, please cooperate referring to shown in Figure 1, and ultrared sensing device 1 is made up of a light projector 10, a light-receiving device 20, a RF emitter 30 and a RF receiving trap 40;

Light projector 10 has projection infrared light beam ability, light-receiving device 20 then has the infrared light beam ability that light projector 10 is throwed of accepting, RF emitter 30 is made up of A/D converter 31, CPU program coder 32 and RF transmitter 33, and light-receiving device 20 can be set to one and form an infrared rays receiver 2 with RF emitter 30, RF receiving trap 40 is made up of RF receiver 41, D/A converter 42, CPU program demoder 43 and numerical value display 44 in addition, and RF receiving trap 40 can receive the coded signal that RF emitter 30 is launched transmission.The detailed circuit diagram of aforementioned RF emitter 30 of You Off and RF receiving trap 40 sees also shown in Figure 2.

When light-receiving device 20 is accepted infrared ray beam energy that light projector 10 throwed, this beam energy size promptly changes into direct current quasi-position, via A/D converter 31 convert direct current quasi-position to binary numeral thereafter, read this binary numeral and encode through CPU program coder 32 again, send out by RF transmitter 33 at last;

After RF receiver 41 received the coded signal that RF transmitter 33 transmitted, after D/A converter 42 was changed, by 43 reduction of CPU program demoder, the numerical value of gained of will reducing was again shown by numerical value display 44.

So when the constructor hands RF receiving trap 40, can learn the beam energy value that light-receiving device 20 is accepted whenever and wherever possible, so only need a constructor can carry out calibrating operation, the constructor can adjust light projector 10 angles earlier, make its data reach maximal value, this data result is represented light projector 10 just facing to light-receiving device 20, and row is adjusted light-receiving device 20 angles more thereafter, and learn that by RF receiving trap 40 calibration result also reaches maximal value to make its data, then calibration actions is promptly accused and is finished.

Cooperate again referring to shown in Figure 3, RF emitter 60 also can be the design of separate type kenel with light-receiving device 50, making RF emitter 60 is an autonomous device, and the RF private jack is set in addition on light-receiving device 50, during calibrating operation, as long as RF emitter 60 is arranged on the light-receiving device 50 by the RF private jack, construction finishes to pull out again and gets final product, and when RF emitter 60 is autonomous device, the manufacturing cost that can save single product.By above-mentioned structural design, the utility model modified form ultrared sensing device is had the following advantages:

1. reduce the construction number: when the constructor hands the RF receiving trap,, can learn the beam energy value that light-receiving device is accepted whenever and wherever possible, so only need a constructor can carry out calibrating operation as long as adjust the angle of light projector and light-receiving device.

2. reduce construction man-hour and cost: because the constructor can learn the data variation of light-receiving device immediately with the adjustment action of angle, so also can in time learn for the correctness of angular setting direction, and react immediately, to promote operating efficiency, reduce construction man-hour and cost.

3. convenient, fast construction: because the constructor can be with the adjustment action and the instant data variation of being learnt light-receiving device by the RF receiving trap of angle, exempted with ammeter and read light-receiving device numerical value, and see through the puzzlement that intercom transmits the result, make the construction action quick, convenient.

4. construction quality is good: because the constructor can be learnt the data variation of light-receiving device by the RF receiving trap rapidly, and understand and adjust the result, therefore can more precisely reach the construction quality requirement.

Claims

1. modified form ultrared sensing device, it includes a light projector, a light-receiving device, a RF emitter and a RF receiving trap;

Light projector has projection infrared light beam ability;

Light-receiving device has the light beam ability that light projector throws of accepting;

The RF emitter includes A/D converter, CPU program coder and RF transmitter;

The RF receiving trap includes RF receiver, D/A converter, CPU program demoder and numerical value display, and the RF receiver can receive the coded signal that the RF transmitter is transmitted.

2. modified form ultrared sensing device as claimed in claim 1 is characterized in that: light-receiving device and RF emitter can be the integral type design.

3. modified form ultrared sensing device as claimed in claim 1 is characterized in that: light-receiving device and RF emitter can be the separate type design.