CN201757925U - Warner for dangerous region - Google Patents

Abstract

The utility model provides a warner for dangerous region, containing a cover body and a bottom case which can be joggled or revolved with each other, a buzzer, a control circuit board and a suspension hole, wherein a pyroelectric infrared detector is arranged in the middle of the fluted cover body, buzz openings are arranged around the surface of the cover body, an electrical appliance circuit board and the buzzer are arranged in the bottom case, and the suspension hole is arranged on the bottom case; a minimizing system, a processor and an alarming circuit are arranged on the control circuit board, the pyroelectric infrared detector and the buzzer are connected with the control circuit board through a connecting wire and supplied with power by a battery or alternative current. The utility model has the following advantages that: the pyroelectric infrared detector can be used for monitoring the dangerous region in real time so as to alarm immediately when finding something; the warner is small in volume and can be designed in different shapes and colors with simple installation and convenient usage; and the warner can be mounted in hidden manner so as to avoid from damaging easily.

Description

A kind of alarm of hazardous location

[technical field]

The utility model relates to machinery and technology of instrument and meter field, specifically, is a kind of suitable warning device that easily is arranged on the hazardous location.

[background technology]

Can cause some influence " hazardous location " in our some activity of periphery federation of living environment to the people, such as, the river course river embankment of removal ground, building, high-voltage transforming room, refuelling station, railway crossing, the depth of water; Also some activity to common people is the place of limiting to some extent, for example, and military key area, important warehouse (dangerous goods store) or the like.In these place, activity of human beings is as not noting, just can cause serious consequence.In the past, mainly be in these places or the outside in zone hangs warning sign or warns beautifully, reminds people is noted.But, these warning signs or warn beautiful often because the form of expression inadequately obviously and directly perceived, caution effect sometimes is also not obvious.

Alarm is reminds people gives special concern to something a instrument, the product for civilian use of having developed at present has: gate inhibition's alarm, smog (fire) alarm, gas leak detector, car alarm or the like, the scope of using relates to residential quarter, office block, factory and enterprise, all kinds of warehouse, bank, hotel, office building, various automobile, home or the like, provides all sound assurances to the stable life of people, ordinary production and office.

Alarm is combined utilization with the beautiful effect of caution, is that the utility model will be considered.

[utility model content]

The purpose of this utility model be to provide a kind of with alarm with the beautiful device that combines utilization of caution, have real-time monitoring, detect the function of hazardous location situation, be fit to be arranged on the hazardous location and use as warning device.

For achieving the above object, the technical scheme taked of the utility model is:

A kind of alarm of hazardous location, contain lid, drain pan, hummer, control circuit board and suppending hole, the top surface of bathtub construction is provided with the buzzing perforate, the drain pan of lid and bathtub construction or chimeric or screw into body, the appliance circuit plate is set in drain pan, hummer, on drain pan, be provided with suppending hole, it is characterized in that, front end at lid is provided with pyroelectric infrared detector, on control circuit board, mainly be provided with minimization system, processor and warning circuit, pyroelectric infrared detector, hummer is connected with control circuit board by connecting line, by battery or AC-powered.

Described minimization system mainly is made of the STC89C51RD single-chip microcomputer.

Described processor adopting BIS0001 processor.

The detection and the principle of work of the alarm of a kind of hazardous location of the utility model are:

Human or animal's (live body) has body temperature, and body temperature homoiothermous about 37 degree, is the infrared ray about 10 μ m so can send specific, wavelength generally.When human or animal's (live body) entered the surveyed area of warning device, because of the difference of body temperature degree and environment temperature, infrared inductor (pyroelectricity element) can be experienced this variation of temperature.The infrared induction source can lose charge balance when receiving human infrared radiation, outwards discharge electric charge, and then produces Δ T and with Δ T circuit output to the periphery, and subsequent conditioning circuit detects through control system and processor just can produce alerting signal after handling.

The good effect of the alarm of a kind of hazardous location of the utility model is:

(1) utilizes infrared eye that the hazardous location is monitored in real time, find that there is something special can in time report to the police;

(2) volume is small and exquisite, can be designed to different product-formings and color, installs simple, easy to use;

(3) can hiddenly install, can not destroyed easily.

[description of drawings]

Accompanying drawing 1 is the structural representation of the alarm of a kind of hazardous location of the utility model;

Accompanying drawing 2 is STRUCTURE DECOMPOSITION synoptic diagram of the alarm of a kind of hazardous location of the utility model;

Accompanying drawing 3 is circuit diagrams of the alarm of a kind of hazardous location of the utility model;

Accompanying drawing 4 is control flow charts of the alarm of a kind of hazardous location of the utility model;

Label shown in the figure is respectively:

1, lid, 2, drain pan, 3, hummer,

4, pyroelectric infrared detector, 5, control circuit board, 6, minimization system,

7, processor, 8, suppending hole, 9, connecting line,

10, start button.

[embodiment]

Provide the embodiment of the alarm of a kind of hazardous location of the utility model below in conjunction with accompanying drawing.It is embodiment that enforcement of the present utility model is not limited to following.

Referring to accompanying drawing 1.

A kind of alarm of hazardous location; be oblate column construction body; lid 1 is entrenched togather with drain pan 2; there is a concave configuration on lid 1 surface; periphery in concave configuration is provided with the buzzing perforate; in the centre of concave configuration pyroelectric infrared detector 4 is set, like this, pyroelectric infrared detector 4 can be subjected to the protection of lid 1 peripheral projection.Pyroelectric infrared detector 4 adopts the TX982 module.

Referring to accompanying drawing 2.

Lid 1 and drain pan 2 all are bathtub construction, can make of plastic mould pressing, and lid 1 can be provided with a suppending hole 8 with mode integrator chimeric or that screw with drain pan 2 on drain pan 2.

Hummer 3 and appliance circuit plate 5 are set in the bathtub construction of drain pan 2, and pyroelectric infrared detector 4, hummer 3 are connected with appliance circuit plate 5 by connecting line 9.

Minimization system 6, processor 7 and warning circuit are set on control circuit board 5, minimization system 6 is 8051 minimization systems that mainly are made of the STC89C51RD single-chip microcomputer, processor 7 adopts the BIS0001 processor, and the annexation of each components and parts is on the control circuit board 5: start button resistance and electric capacity are interconnected to single-chip microcomputer RESET mouth by line on the surface-mounted integrated circuit and single-chip microcomputer and play the effect that starts and reset.Described VCC (seeing accompanying drawing 3) is the direct supply of 5～8V.

Start button 10 as shown in Figure 3.Whole alarm can adopt the form of battery; Also can take form by AC-powered; Can divide this has different product types.

Referring to accompanying drawing 3 and 4.

The flow process of control of the present utility model and circuit is: press start button 10, alarm powers on, each port is in init state (step 101)---corresponding low level signal output after starting, pyroelectric infrared detector 4 is arranged, by 1.0 mouthfuls of detections of the P of single-chip microcomputer whether low level signal (step 102) is arranged---for preventing the phenomenon of not reporting to the police,---whether detect has low level signal (step 104)---then do not export corresponding alerting signal to detect whether be in normal operating conditions, time-delay 10ms (step 103).

Claims (3)

1. the alarm of a hazardous location, contain lid (1), drain pan (2), hummer (3), control circuit board (5) and suppending hole (8), the lid of bathtub construction (1) surface is provided with the buzzing perforate, the drain pan (2) of lid (1) and bathtub construction or chimeric or screw into body, appliance circuit plate (5) is set in drain pan (2), hummer (3), on drain pan (2), be provided with suppending hole (8), it is characterized in that, front end at lid (1) is provided with pyroelectric infrared detector (4), on control circuit board (5), mainly be provided with minimization system (6), processor (7) and warning circuit, pyroelectric infrared detector (4), hummer (3) is connected with control circuit board (5) by connecting line (9), by battery or AC-powered.

2. the alarm of a kind of hazardous location according to claim 1 is characterized in that, described minimization system (6) mainly is made of the STC89C51RD single-chip microcomputer.

3. the alarm of a kind of hazardous location according to claim 1 is characterized in that, described processor (7) adopts the BIS0001 processor.

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