CN2418530Y - Display device for person getting in or getting out toilet - Google Patents

Abstract

The utility model relates to a display device for a person getting in or getting out of a toilet, which is a pulse reflection type infrared photoelectric control device. The utility model is used for displaying whether or not a person getting in or getting out of the domestic toilet and realizes the auto-control to the lighting in the toilet. The infrared pulse emitting and receiving enhances the interference resistant feature of the device to the environment light, a small power infrared emitting tube can be used to reduce the electric consumption, the reasonable design of the 'in' and 'out' logic circuit makes the function of the device more perfect, the reflection receiving mode makes the device integrated, the manufacture and the installation are easy, and the utility model is suitable for mass production. The infrared emitting and receiving tubes VD4 and VT2 are arranged in a window 3, the VD3 and VT1 are arranged in a window 4, the direction of a display window 2 is outward, and a power wire and a lamp control wire 1 are connected with the existing lamp wire.

Description

Toilet turnover display

The utility model belongs to the controlled by infrared light technical field.

The controlled by infrared light ultimate principle is: infrared, reception, detect through preposition amplification, demodulation, instruction, and realize giving establishing function by executive circuit.The systems technology file can be consulted " infrared ray and ultra-sonic remote control " (People's Telecon Publishing House).In recent years, " electronics newspaper ", the multiple controlled by infrared light data of publications such as " electronic productions ", each is with practical value, but remains weak point.This class device generally is to be installed in the both sides, doorway relatively, and must to be installed in same level height by emission, reception two parts.It is all inconvenient to make, install, connect up, and is unsuitable for to average family and promotes.

The utility model is that a kind of power consumption is low, the integrated photoelectric controller of easy-to-install.Be installed on the doorway, toilet, can inform at any time whether the someone enters in the toilet, also can realize the light automatic control simultaneously.It is bright that the people advances lamp, and the people goes out lamp and goes out, the convenient use.

Technical scheme: display design is as a whole, by pulsing circuit emission two-way pulsed infrared, phototriode receives the infrared ray that is reflected by human body, through the preposition amplification of two-way, impulse commutation, amplification, filtering, turnover direction logical process drives red, green luminous demonstration and control illuminating lamp.

The advantage of toilet turnover display is: 1, adopt the pulsed infrared emission, average working current is little, and energy consumption is low.2, because a circuit paired pulses photosignal amplifies, display is obviously strengthened to the antijamming capability of surround lighting.3, owing to possessed turnover direction logical process function, the mistake that can avoid occurring occasionally in the turnover process shows.4, circuit is debugged easily, need not to adjust frequency, and only needs semifixed resistor RP to regulate light-operated distance in case of necessity.5, display is integrated, and installs, wiring is simple, suitablely generally uses.Can be installed on the inboard one side arbitrarily of toilet door opening, red green display window (2) places outer direction, and power supply and light control line (1) are connected in original lamp line place and get final product.

Accompanying drawing 1 is a toilet turnover display circuit schematic diagram.Wherein bridge rectifier, C ₁, R ₁, C ₄, VD ₁, VD ₂Constitute the capacitance decompression stabilized voltage supply, 9V is provided DC voltage; 555 time base circuits and peripheral cell constitute pulsing circuit (frequency 2KHz, pulse duration ratio is 50), drive infrarede emitting diode VD ₃, VD ₄The transponder pulse infrared ray; VT ₁, VT ₂Be phototriode, design makes VT ₁, VT ₂Can not directly receive VD ₃, VD ₄The infrared ray of emission can only receive the infrared ray that reflects into Fig. 2 window 3 or 4; VD ₅, VD ₆To VT ₁, VT ₂Optical biasing is provided; Photoelectric pulse signal is through C ₆, C ₇Import integrated operational amplifier A respectively ₁, A ₂Carry out preposition amplification, import VT again ₃, VT ₄Carry out impulse commutation, amplification, filtering, through D ₁, D ₂The RC network of trigger and its output terminal and D ₃, D ₄The logical circuit that constitutes produces the turnover trigger pip, input D ₅, D ₆The trigger actuation executive circuit; D ₇, D ₈It is solid-state relay control illuminating lamp EL that the formation LF oscillator can make light emitting diode strobe light emission: SSR.Accompanying drawing 2 is toilet turnover display outside drawings in kind.Wherein: 1, power lead and light control line.2, red and green luminous display window.3, the infrared receiver window (is installed VD ₄, VT ₂).4, the infrared receiver window (is installed VD ₃, VT ₁).

Implementation of the present utility model can be that example is illustrated with entering toilet process display working condition:

1, walk close to the doorway, toilet as the people, a health part is blocked infrared emission receive window 3 earlier and when not blocking window 4 as yet, VD ₄The pulsed infrared that sends is reflected through window 3 to phototriode VT by human body ₂, VT ₂Last generation pulse current is at R ₇On be converted to pulse voltage, through C ₇Input amplifier A ₂Preposition amplification, VT ₄Rectification is amplified, C ₁₅, R ₂₀After the filtering, VT ₄The C utmost point reduce to low level by high level, at this moment because VT ₃The C utmost point still be high level, D ₁Output low level " 0 ", D ₂Input end is low level " 0.0 ", is output as high level " 1 ", through VD ₇Make C ₁₂Rise to high level " 1 " rapidly.During this period, D ₃, D ₄Input end is " 0.1 " so output terminal is " 1 ".

2, when the people continue the reach, health blocked window simultaneously at 3,4 o'clock, VT ₁, A ₁Work makes VT ₃The C utmost point reduce to low level because D before this ₂Export " 1 ", so D ₁Still output " 0 ".

3, before the people, move away 3 of windows and block window 4 in a flash, D ₂Output terminal is reduced to " 0 ", D again ₁Input end becomes " 0.0 ", so D ₁Output terminal is " 1 ", at this moment, because C ₁₂The high level that stores up must be through R ₂₂Slowly release and can not transition, so D ₃Input end is " 1.1 ", and output terminal then is " 0 ".Make D ₅Output terminal is " 1 ", D ₆Output terminal is " 0 ", VT ₅Conducting, VT ₆End red light emitting diodes VD ₁₁, VD ₁₂Through VT ₉Send low strobe light, expression " someone enters ".Simultaneously, solid-state relay SSR connects, and illuminating lamp EL is bright.

4, because the symmetry of circuit design, in like manner, after the people walks out the toilet, D ₅, D ₆The trigger of forming will overturn, and red flash of light is stopped, and illuminating lamp closes and goes out green LED VD ₉, VD ₁₀Send low strobe light, expression " people walks out ".

Claims (1)

1. Toilet turnover display, constitute by infrared, reception, amplification and executive circuit, it is characterized in that: pulsing circuit drives two infrarede emitting diode transponder pulse infrared rays, two phototriodes receive the infrared ray of reflection, carry out preposition amplification, impulse commutation, amplification, filtering respectively, through logical circuit input executive circuit.