CN2893761Y - Opening cable car starting and stoping operation safety device with monitoring signal provided from AND gate circuit - Google Patents
Opening cable car starting and stoping operation safety device with monitoring signal provided from AND gate circuit Download PDFInfo
- Publication number
- CN2893761Y CN2893761Y CN 200620102102 CN200620102102U CN2893761Y CN 2893761 Y CN2893761 Y CN 2893761Y CN 200620102102 CN200620102102 CN 200620102102 CN 200620102102 U CN200620102102 U CN 200620102102U CN 2893761 Y CN2893761 Y CN 2893761Y
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- China
- Prior art keywords
- circuit
- cable car
- gate circuit
- utility
- output terminal
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model disclose a safety device for the start/stop operation of the open cable car on the basis of monitor signal provided by a and gate circuit, which belongs to the single-chip microcomputer technology application field. The utility model comprises an infrared, a pyroelectric and gate circuit inducing device and a switching transistors circuit implementation structure. The utility model is characterized in that the input terminal of the microcontroller I/O is connected with the output terminal of the and gate circuit transmitting and receiving device. The output terminal of the microcontroller I/O is connected with the implementation structure of the switching transistor, which comprises a switching transistor and a relay. The utility model uses the MCU to receive the body of the passengers induced signals and control the output signals of switching transistor implementation structure and the and gate test signal. The beneficial effect is in an open-style cable car start/stop operation, the and gate circuit monitors the signal induced by the tourists and controls the delayed start/stop time of the motor to ensure their personal safety. An and circuit is used to improve the accuracy of the monitoring in the utility model.
Description
Technical field the invention relates to a kind of open cable car start-stop operation safety device, and particularly a kind of AND 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 start and stop, and the people does not occupy stably or the Shi Renwei safety of stopping starts again when leaving 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 AND circuit provides monitor signal.
The invention solves the technical scheme that its technical matters adopts: comprise infrared ray, pyroelectricity AND circuit induction installation and switching tube execution architecture; The input end of single-chip processor i/o is connected with AND circuit receiving trap output terminal, and the output terminal of single-chip processor i/o is connected with the switching tube execution architecture, and switching tube topworks comprises switching tube and relay.The AND circuit connected mode: two diode cathodes are connected with infrared detection circuit, pyroelectricity testing circuit output terminal respectively, be connected with positive source after two diode cathode parallel connections, promptly with the door form, its anodal parallel connected end is connected with the single-chip microcomputer input end.
The invention solves its beneficial effect: the invention is by the human-induced signal of infrared ray, pyroelectricity AND circuit reception passenger, by Single-chip Controlling switching tube execution architecture output detection signal.When worn-out open type cable car start-stop operation,, the time-delay start-stop time of the moving operation of control motor, guarantee personal safety by monitoring visitor induced signal.
Description of drawings is described further the invention below in conjunction with accompanying drawing.
Fig. 1 is the electrical schematic diagram of the invention.
Embodiment is consulted Fig. 1.The invention is formed the AND circuit test side by pyroelectric sensor and infrared sensor.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, amplify through the C common-emitter amplifier of forming to VT1 that is coupled, the further amplifying signal of low-pass amplifier that operational amplifier A 1 constitutes is connected with the in-phase input end of voltage comparator A2, and the reference voltage of comparer 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.
Infrared ray 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 single-chip microcomputer input end I/O (1) by AND circuit output terminal Yout with pyroelectricity observation circuit output terminal.
The present embodiment single-chip microcomputer adopts the PIC16C54 8-bit microcontroller.
AND circuit is by diode D
1, D
2Form.Output terminal is the double monitoring signal.Two diode D of AND circuit connected mode
1, D
2Negative pole is connected with infrared detection circuit, pyroelectricity testing circuit output terminal respectively, two diode D
1, D
2Anodal back in parallel is connected with positive source, and promptly with the door form, its anodal parallel connected end Yout is for having double monitoring signal monitoring end.
Single-chip microcomputer output terminal I/O (2) is connected with the switching tube executive circuit.Executive circuit comprises switching tube G relay J
1J
1-
1Be normally opened contact.J
1-
1Be connected with the single-chip microcomputer 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 AND circuit provides the open cable car start-stop operation safety device of monitor signal, comprises infrared ray, pyroelectricity AND circuit induction installation and switching tube execution architecture; The input end that it is characterized in that single-chip processor i/o is connected with AND circuit receiving trap output terminal, and the output terminal of single-chip processor i/o is connected with the switching tube execution architecture, and switching tube topworks comprises switching tube and relay.
2, a kind of AND circuit according to claim 1 provides the open cable car start-stop operation safety device of monitor signal, it is characterized in that the AND circuit connected mode: two diode cathodes are connected with infrared detection circuit, pyroelectricity testing circuit output terminal respectively, be connected with positive source after two diode cathode parallel connections, promptly with the door form, its anodal parallel connected end is connected with the single-chip microcomputer input end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620102102 CN2893761Y (en) | 2006-03-28 | 2006-03-28 | Opening cable car starting and stoping operation safety device with monitoring signal provided from AND gate circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620102102 CN2893761Y (en) | 2006-03-28 | 2006-03-28 | Opening cable car starting and stoping operation safety device with monitoring signal provided from AND gate circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2893761Y true CN2893761Y (en) | 2007-04-25 |
Family
ID=38061918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620102102 Expired - Fee Related CN2893761Y (en) | 2006-03-28 | 2006-03-28 | Opening cable car starting and stoping operation safety device with monitoring signal provided from AND gate circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2893761Y (en) |
-
2006
- 2006-03-28 CN CN 200620102102 patent/CN2893761Y/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 |