CN201458444U

CN201458444U - Automatic improper call signal canceling device for passenger elevator

Info

Publication number: CN201458444U
Application number: CN200920098698XU
Authority: CN
Inventors: 马鸣; 马连水
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-09-10
Filing date: 2009-09-10
Publication date: 2010-05-12
Anticipated expiration: 2019-09-10

Abstract

The utility model provides an automatic improper call signal canceling device for a passenger elevator. Infrared sensors are arranged at elevator doorways; the output terminals of the sensors are connected with corresponding exclusive circuits respectively; the output terminals of the exclusive circuits are connected with corresponding level switching circuits respectively; one input terminal of the switching circuit is connected with a level output terminal corresponding to an call keyboard in the up-and-down direction, and the other input terminal thereof is connected with a level output terminal corresponding to a floor stoppage switch of the call keyboard; and the output terminals of the call level switching circuits are correspondingly connected with call signal input terminals of an elevator floor stoppage circuit control device respectively. The infrared sensors of the device are used for detecting the variety of infrared energy radiated by a human body in the non-contact form, and the infrared energy can be converted into voltage signals for output through an exclusive integrated circuit; and the voltage signals keep normal call signals valid. When the call signals are generated, the signals of infrared energy radiated by the human body are not detected through the infrared sensors, the facts that nobody waits for the elevators at the elevator doors and the call level switching circuits are in operation are indicated, thereby avoiding insignificant floor stoppage of elevator cabs.

Description

The improper calling signal automatic eliminator of passenger elevator

Technical field

The utility model belongs to monitoring device, particularly relates to the improper calling signal automatic eliminator of a kind of passenger elevator.

Background technology

Passenger elevator is provided with at Room door successively and exhales terraced keyboard, and the passenger can select above-below direction and stop to count layer by layer as required, and flicking directionkeys and a numerical key can make elevator cab forward stop in respective storey.

Yet, several phenomenons below the ubiquity in the passenger elevator use: pushed the wrong and exhaled terraced keyboard directionkeys or numerical key to need to select once more; Abandon using escalator; Or even one the people press simultaneously and exhale terraced keyboard with many passenger elevator of layer.

Above-mentioned improper calling signal will cause the sky of passenger elevator to stop or be unloaded, not only waste electric power resource, also prolong other floor call passenger's standby time.

Summary of the invention

The utility model is to cause the passenger elevator sky to stop or unloaded technical matters and propose the improper calling signal automatic eliminator of a kind of passenger elevator in order to solve the improper calling signal of exhaling terraced keyboard.

The utility model is taked following technical scheme for achieving the above object: this passenger elevator calling signal automatic eliminator comprises layer circuit control device that stop of hall calls keyboard and elevator, feature is, the top, doorway of each Room door of passenger elevator is provided with pyroelectric infrared sensor, the mouth of described each pyroelectric infrared sensor is connected to corresponding infra red treatment special IC, each infra red treatment special IC control output end is connected to exhales terraced level switching circuit accordingly, describedly respectively exhale terraced level switching circuit one input end to be connected in cooresponding hall calls keyboard above-below direction level output end, another input end is connected in cooresponding hall calls keyboard and stops a layer switch level mouth, describedly exhales respectively that terraced level switching circuit mouth is corresponding respectively to be connected in each calling signal input end that elevator stops layer circuit control device.

The utility model can also be taked following technical measures:

It can be the filter glass of 7～10um by optical wavelength range that the front end of described each pyroelectric infrared sensor is provided with.

The front end of described each pyroelectric infrared sensor is provided with Fresnel Lenses.

Describedly exhale terraced level switching circuit to constitute by relay and driving circuit thereof, infra red treatment special IC mouth is connected in the relay drive circuit control input end, relay two moving contacts are connected to the corresponding calling signal input end that elevator stops layer circuit control device, the normally closed static contact of each relay connects the above-below direction level output end of hall calls keyboard respectively and stops a layer switch level mouth, and each relay normally open static contact connects high level respectively.

Describedly exhale terraced level switching circuit by constituting with anti-gate circuit, each is connected to the corresponding calling signal input end that elevator stops layer circuit control device with anti-gate output, each all is connected in infra red treatment special IC mouth with anti-gate circuit one input end, and each is connected the above-below direction level output end of hall calls keyboard respectively and stops a layer switch level mouth with another input end of anti-gate circuit.

The beneficial effects of the utility model and advantage are: the pyroelectric infrared sensor of this device can detect the infrared energy variation of human body radiation with the noncontact form, convert thereof into voltage signal output through the infra red treatment special IC, it is effective that this voltage signal is kept normal calling signal. when calling signal produces and pyroelectric infrared sensor does not detect the infrared energy signal of human body radiation, the unmanned standby of elevator lobby that produces calling signal is described, the calling signal of this moment is improper calling signal. at this moment, the voltage signal of the infra red treatment special IC output of this device makes the terraced level switching circuit work of exhaling, remove elevator and stop the improper calling signal of the respective input of layer circuit control device, thereby avoided the insignificant layer that stops of elevator cage. the utlity model has simple in structure, the outstanding advantage of control failure-free.

Description of drawings

Accompanying drawing 1 is a passenger elevator entrance hall structural representation.

Accompanying drawing 2 is pyroelectric infrared sensor assembly structure generalized sections.

Accompanying drawing 3 is embodiment 1 electric functional block diagrams.

Accompanying drawing 4 is embodiment 2 electric functional block diagrams.

Number in the figure: 1 doorway, 1,2 pyroelectric infrared sensor assembly, 2-1 pyroelectric infrared sensor, 2-2 infra red treatment special IC, the 2-3 filter glass, 2-4 Fresnel Lenses, 2-5 support, 3 hall calls keyboards, 4 exhale terraced level switching circuit, and 5 elevators stop a layer circuit control device.

The specific embodiment

Further specify the utility model below in conjunction with embodiment and accompanying drawing thereof.

As shown in Figure 1, each Room door one side of passenger elevator is a hall calls keyboard 3, and 1 top, doorway of Room door is provided with the pyroelectric infrared sensor assembly 2 of adjustable angle.

As shown in Figure 2, pyroelectric infrared sensor assembly 2 can be adjusted the detection angle of pyroelectric infrared sensor by support 2-5 axle bearing.Be provided with pyroelectric infrared sensor 2-1 and infra red treatment special IC 2-2 in the assembly, pyroelectric infrared sensor be to be the filter glass 2-3 of 7～10um by optical wavelength range foremost, the infrared ray centre wavelength of the range of wavelength of this filter glass and human body radiation adapts, and helps reducing entrance hall veiling glare interference of light sources.Be Fresnel Lenses 2-4 between pyroelectric infrared sensor and the filter glass 2-3, Fresnel Lenses can obviously improve the detection receiving sensitivity of pyroelectric infrared sensor.

As shown in Figure 3, the mouth of the pyroelectric infrared sensor G1～Gn at each every mouth 1 top, the floor Room is connected to corresponding infra red treatment special IC S-01, and this IC interior is provided with circuit such as amplifier, comparator, state controller and delay timer.Each infra red treatment special IC control output end is connected to and exhales terraced level switching circuit 4 accordingly.

Below with among the embodiment 1 one exhale terraced level switching circuit 4 its concrete formations of explanation.

Exhale terraced level switching circuit to be made of relay J and transistor driver circuit thereof, infra red treatment special IC S-01 mouth is connected in the transistor T control utmost point of relay drive circuit.Two moving contact J-1, the J-4 of relay J is connected to the corresponding calling signal input end that elevator stops layer circuit control device 5, relay two normally closed static contact J-2, the J-5 of corresponding moving contact J-1 connect the above-below direction level output end of hall calls keyboard 3 respectively and stop a layer switch level mouth, and two of relay J is often opened static contact J-3, J-6 and connected high level respectively.

Embodiment 1 principle of work is, floor Room door has the passenger to exhale ladder, the output signal of pyroelectric infrared sensor makes infra red treatment special IC output high level, PNP transistor T cutoff relay J is failure to actuate, exhale the above-below direction level output end of terraced keyboard 3 and stop layer low level of switch level mouth and transport to the CPU that elevator stops layer circuit control device 5, if do the operation of the respective direction and the number of plies according to the elevator control program elevator. the passenger leaves the entrance hall after exhaling ladder, the pyroelectric infrared sensor non-output signal, make infra red treatment special IC output low level, PNP transistor T turn-on relay J action, two normally closed static contact J-2 of relay J, the J-5 disjunction, exhale terraced keyboard above-below direction accordingly and stop a layer switch indicator lamp and go out, meanwhile relay J two is often opened static contact J-3, J-6 connects high level respectively, elevator stops the CPU of layer circuit control device 5 by not exhaling ladder to handle, and has promptly removed improper calling signal.

As shown in Figure 4, the mouth of the pyroelectric infrared sensor G1～Gn at each every mouth 1 top, the floor Room is connected to corresponding infra red treatment special IC S-01, and each infra red treatment special IC control output end is connected to and exhales terraced level switching circuit 4 accordingly.

Below with among the embodiment 2 one exhale terraced level switching circuit 4 its concrete formations of explanation.

Exhale terraced level switching circuit by constituting with anti-gate circuit YF 1, YF2, each is connected to the corresponding calling signal input end that elevator stops layer circuit control device 5 with anti-gate output, each all is connected in infra red treatment special IC S-01 mouth with anti-gate circuit one input end, and another input end of each AND circuit connects the above-below direction level output end of hall calls keyboard 3 respectively and stops a layer switch level mouth.

Embodiment 2 principle of work are, floor Room door has the passenger to exhale ladder, the output signal of pyroelectric infrared sensor makes infra red treatment special IC output high level, the selected above-below direction level output end of exhaling terraced keyboard and stop layer high level of switch level mouth and transport to corresponding and anti-gate circuit, each transports to the CPU that elevator stops layer circuit control device 5 with the low level of anti-gate output, does the operation of the respective direction and the number of plies according to the elevator control program elevator.If the passenger leaves the entrance hall after exhaling ladder, the pyroelectric infrared sensor non-output signal, make infra red treatment special IC output low level, each is a high level with anti-gate output, exhale terraced keyboard above-below direction accordingly and stop layer switch indicator lamp CPU that elevator stops layer circuit control device 5 when going out, promptly removed improper calling signal by not exhaling ladder to handle.

Claims

1. the improper calling signal automatic eliminator of passenger elevator, layer circuit control device that stop that comprises hall calls keyboard and elevator, it is characterized in that: the top, doorway of each Room door of passenger elevator is provided with pyroelectric infrared sensor, the mouth of described each pyroelectric infrared sensor is connected to corresponding infra red treatment special IC, each infra red treatment special IC control output end is connected to exhales terraced level switching circuit accordingly, describedly respectively exhale terraced level switching circuit one input end to be connected in cooresponding hall calls keyboard above-below direction level output end, another input end is connected in cooresponding hall calls keyboard and stops a layer switch level mouth, describedly exhales respectively that terraced level switching circuit mouth is corresponding respectively to be connected in each calling signal input end that elevator stops layer circuit control device.

2. improper calling signal automatic eliminator according to claim 1 is characterized in that: it can be the filter glass of 7～10um by optical wavelength range that the front end of described each pyroelectric infrared sensor is provided with.

3. improper calling signal automatic eliminator according to claim 1, it is characterized in that: the front end of described each pyroelectric infrared sensor is provided with Fresnel Lenses.

4. improper calling signal automatic eliminator according to claim 1, it is characterized in that: describedly exhale terraced level switching circuit to constitute by relay and driving circuit thereof, infra red treatment special IC mouth is connected in the relay drive circuit control input end, relay two moving contacts are connected to the corresponding calling signal input end that elevator stops layer circuit control device, the normally closed static contact of each relay connects the above-below direction level output end of hall calls keyboard respectively and stops a layer switch level mouth, and each relay normally open static contact connects high level respectively.

5. improper calling signal automatic eliminator according to claim 1, it is characterized in that: describedly exhale terraced level switching circuit by constituting with anti-gate circuit, each is connected to the corresponding calling signal input end that elevator stops layer circuit control device with anti-gate output, each all is connected in infra red treatment special IC mouth with anti-gate circuit one input end, and each is connected the above-below direction level output end of hall calls keyboard respectively and stops a layer switch level mouth with another input end of anti-gate circuit.