CN2918177Y - Open type safety device for cable car start and stop with OR gate circuit providing monitoring signal - Google Patents
Open type safety device for cable car start and stop with OR gate circuit providing monitoring signal Download PDFInfo
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- CN2918177Y CN2918177Y CN 200620103119 CN200620103119U CN2918177Y CN 2918177 Y CN2918177 Y CN 2918177Y CN 200620103119 CN200620103119 CN 200620103119 CN 200620103119 U CN200620103119 U CN 200620103119U CN 2918177 Y CN2918177 Y CN 2918177Y
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- circuit
- gate circuit
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- cable car
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Abstract
The utility model discloses a safety device for start and stop operation of an open type cable car, of which a monitoring signal is provided by an OR gate circuit, belonging to a single chip microcomputer technology application field. The utility model comprises an infrared ray, a pyroelectric OR gate circuit induction device and a switch tube execution structure. The utility model is characterized in that an input terminal of the single chip microcomputer I/O is connected with an output terminal of a transceiver device of the OR gate circuit, an output terminal of the single chip microcomputer I/O is connected with the switch tube execution structure, and the switch tube execution structure comprises switch tubes and relays. The utility model receives a human body induction signal of a driver and a passenger by the single chip microcomputer, and controls the switch tube execution structure by the single chip microcomputer to output the OR gate monitoring signal. The utility model has the advantages that when the open type cable car is started or stopped, the delay start and stop time of the running motor is controlled by monitoring the passenger induction signals with the OR gate circuit to ensure personal safety. The utility model improves the monitoring accuracy as employing the OR gate circuit.
Description
Technical field the invention relates to a kind of open cable car start-stop operation safety device, and particularly a kind of OR circuit provides the open cable car start-stop operation safety device of monitor signal, belongs to microchip technology field.
Before background technology the invention applying date, open cable car does not have monitoring device when left alone without help opening, and the people does not occupy stably or left alone without help following time does not start again when the people leaves safely when starting, and causes dangerous sunken trouble to taking the cable car visitor.
The purpose of summary of the invention the invention provides the open cable car start-stop operation safety device that a kind of OR circuit provides monitor signal.
The invention solves the technical scheme that its technical matters adopts: comprise infrared ray, pyroelectricity OR circuit induction installation and switching valve execution architecture; The input end of single-chip processor i/o is connected with OR circuit receiving device mouth, and the mouth of single-chip processor i/o is connected with the switching valve execution architecture, and the switching valve actuating unit comprises switching valve and relay.The OR circuit connection mode is that infrared detection circuit, pyroelectricity testing circuit mouth are connected with two diode cathodes respectively, pass through resistance eutral grounding after two diode cathode parallel connections, even the door form, its negative pole parallel connected end is for having double monitoring signal monitoring end.
The invention solves its beneficial effect: the invention is by the human-induced signal of infrared ray, pyroelectricity OR circuit reception passenger, by Single-chip Controlling switching valve execution architecture output detection signal.When worn-out open type cable car opens left alone without help operation,, the time-delay start-stop time of the moving operation of control motor, guarantee personal safety by monitoring visitor induced signal.The invention adopts OR circuit to help the raising of monitoring precision.
Description of drawings is described further the invention below in conjunction with accompanying drawing.
Fig. 1 is the electrical schematic diagram of the invention.
The specific embodiment is consulted Fig. 1.The invention is formed the OR circuit test side by pyroelectric sensor and infrared pickoff.Pyroelectric sensor is made up of fresnel lens, low frequency bandpass amplifier, voltage comparator; High level signal by pyroelectric monitor output.The low frequency signal that pyroelectric sensor output is faint is coupled to VT through C
1The common emitter amplifier of forming amplifies operational amplifier A
1The further amplifying signal of low-pass amplifier and the voltage comparator A that constitute
2In-phase input end be connected, the reference voltage of comparator is by the comparative voltage of R and RP dividing potential drop decision inverting input.In the present embodiment, B selects SD02 type pyroelectric sensor for use.Fresnel lens 7801 types, VT
1With 9014, A
1, A
2Select a slice amplifier LM358N for use.
Infradred sensor is by IC
1The pulse square wave voltage of output is added in infrarede emitting diode VD
2, VD
3Two ends, drive its towards periphery spatial emission go out modulated infrared light.Infrared reflection is gone back a part by infrared receiving tube VD
4Reception also is converted to the respective quadrature time variant voltage signal, through C
4, R
5Be coupled to amplifier IC
2After amplifying, again through C
5Be input to demoder IC
3Input end, the decoding after phase inverter VT
2The output high level.VT
2With 9014.
The infrared observation circuit is connected with micro controller system input end I/O (1) by OR circuit mouth Yout with pyroelectricity observation circuit mouth.
The present embodiment micro controller system adopts the PIC16C54 8-bit microcontroller.
OR circuit is by diode D
1, D
2Form.Mouth is the double monitoring signal.Two diode D of OR circuit connection mode
1, D
2Positive pole is connected with infrared detection circuit, pyroelectricity testing circuit mouth respectively, two diode D
1, D
2Be connected with resistance after the negative pole parallel connection, even the door form, its negative pole parallel connected end Yout is for having double monitoring signal monitoring end.
Micro controller system mouth I/O (2) is connected with the switching valve executive circuit.Executive circuit comprises switching valve G relay J
1J
1-1Be open contact.J
1-1Be connected with the micro controller system of control cable car drive motor.The invention does not relate to the control of cable car drive motor.
Claims (2)
1, a kind of OR circuit provides the open cable car start-stop operation safety device of monitor signal, comprises infrared ray, pyroelectricity OR circuit induction installation and switching valve execution architecture; The input end that it is characterized in that single-chip processor i/o is connected with OR circuit receiving device mouth, and the mouth of single-chip processor i/o is connected with the switching valve execution architecture, and the switching valve actuating unit comprises switching valve and relay.
2, a kind of OR circuit according to claim 1 provides the open cable car start-stop operation safety device of monitor signal, it is characterized in that the OR circuit connection mode is that infrared detection circuit, pyroelectricity testing circuit mouth are connected with two diode cathodes respectively, pass through resistance eutral grounding after two diode cathode parallel connections, even the door form, its negative pole parallel connected end is for having double monitoring signal monitoring end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620103119 CN2918177Y (en) | 2006-04-27 | 2006-04-27 | Open type safety device for cable car start and stop with OR gate circuit providing monitoring signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620103119 CN2918177Y (en) | 2006-04-27 | 2006-04-27 | Open type safety device for cable car start and stop with OR gate circuit providing monitoring signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2918177Y true CN2918177Y (en) | 2007-07-04 |
Family
ID=38215987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620103119 Expired - Fee Related CN2918177Y (en) | 2006-04-27 | 2006-04-27 | Open type safety device for cable car start and stop with OR gate circuit providing monitoring signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2918177Y (en) |
-
2006
- 2006-04-27 CN CN 200620103119 patent/CN2918177Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |