Claims
- 1. In an automatic door installation having a swinging door, a power operator for swinging the door between a closed position thereof closing a doorway opening and an open position thereof on a swing side of the doorway opening, and a traffic responsive control system comprising radiant energy emitter and receiver means for sensing doorway traffic along a traffic path of travel through the doorway opening, and door control means operated by the traffic sensing means to automatically open the door for traffic to pass along said traffic path of travel, the improvement wherein the traffic sensing means comprises at least one multiple emitter sensor mounted on the door having a bank of a plurality of radiant energy emitters with radiant energy beams having axes angularly spaced along the said traffic path of travel and collectively providing an effective emitted energy coverage area intersecting the said traffic path of travel and radiant energy receiver means adjacent the bank of emitters for receiving reflected radiant energy emitted from the bank of emitters, the said one multiple emitter sensor being a swing side sensor mounted on the door on the swing side thereof adjacent one side edge of the door to provide a said effective coverage area on the swing side of the door which intersects the traffic path of travel when the door is in its said closed position, and wherein the traffic responsive control system further comprises door position responsive means for selectively operating the emitters of the said swing side sensor by selectively activating those emitters at a plurality of different radiant energy levels and deactivating those emitters to vary the said effective coverage area as the door is swung between its said closed and open positions.
- 2. An automatic door installation according to claim 1 wherein the traffic sensing means comprises another said multiple emitter sensor mounted on the swing side of the door adjacent the other side edge of the door from said one sensor and providing a second swing side sensor with a said coverage area on the swing side of the door which intersects the said traffic path of travel when the door is in its said closed position, and wherein the door position responsive means selectively operates the emitters of the said second swing side sensor by selectively activating those emitters at a plurality of different radiant energy levels and deactivating those emitters to vary the said effective coverage area as the door is swung between its said closed and open positions.
- 3. An automatic door installation according to claim 1 wherein the swing side sensor is mounted on the door adjacent the free side edge thereof and wherein the door position responsive means activates certain emitters of the swing side sensor in the said closed position of the door and activates certain other emitters of that sensor as the door is swung from its said closed to its said open position.
- 4. An automatic door installation according to claim 1 wherein the swing side sensor is mounted on the door adjacent the pivot edge of the door and wherein the door position responsive means activates certain emitters of the swing side sensor in the said closed position of the door and selectively deactivates those emitters as the door is swung from its said closed position to its said open position.
- 5. An automatic door installation according to claim 1 wherein the traffic sensing means comprises another said multiple emitter sensor mounted on the non-swing side of the door adjacent one side edge of the door and providing a non-swing side sensor with a said coverage area intersecting the said traffic path of travel on the non-swing side of the door when the door is in its said closed position.
- 6. An automatic door installation according to claim 1 wherein the traffic sensing means further comprises a free edge sensor mounted on the swing side of the door adjacent the free side edge of the door and having at least one emitter for emitting a radiant energy beam which extends generally normal to the plane of the door at the free side edge thereof and radiant energy receiver means mounted adjacent the said one emitter for receiving reflected radiant energy emitted from each emitter of the said free edge sensor.
- 7. An automatic door installation according to claim 1 wherein the traffic sensing means comprises another said multiple emitter sensor mounted on the swing side of the door adjacent the other side edge of the door from the said one multiple emitter sensor and providing a second swing side sensor with a said effective coverage area on the swing side of the door which intersects the said traffic path of travel when the door is in its said closed position, another said multiple emitter sensor mounted on the non-swing side of the door and providing a non-swing side sensor with a said effective coverage area which intersects the said traffic path of travel on the non-swing side of the door when the door is in its said closed position, and wherein the door position responsive means selectively operates the emitters of the said second swing side sensor and the said non-swing side sensor by selectively activating those emitters at a plurality of different radiant energy levels and deactivating those emitters to vary their said effective coverage areas as the door is swung between its said closed and open positions.
- 8. An automatic door installation according to claim 1 wherein the traffic responsive means comprises another said multiple emitter sensor mounted on the swing side of the door adjacent the other side edge of the door from the said one multiple emitter sensor and providing a second swing side sensor with a said effective coverage area on the swing side of the door which intersects the said traffic path of travel when the door is in its said closed position, another said multiple emitter sensor mounted on the non-swing side of the door adjacent one side edge of the door and providing a non-swing side sensor with a said effective coverage area which intersects the said traffic path of travel on the non-swing side of the door when the door in in its said closed position, and a free edge sensor mounted on the swing side of the door adjacent the free side edge thereof and having at least one emitter for emitting a radiant energy beam which extends generally normal to the door and radiant energy receiver means mounted adjacent the said one emitter for receiving reflected radiant energy emitted from each emitter of the said free edge sensor, and wherein the door position responsive means selectively operates the emitters of the said second swing side sensor, the said non-swing side sensor and the said free edge sensor by selectively activating those emitters at a plurality of different radiant energy levels and deactivating those emitters to vary their said effective coverage areas as the door is swung between its closed and open positions.
- 9. In an automatic door installation having a swinging door, a power operator for swinging the door between a closed position thereof closing a doorway opening and an open position thereof on a swing side of the doorway opening, and a traffic responsive control system comprising radiant energy emitter and receiver means for sensing doorway traffic along a traffic path of travel through the doorway opening, and door control means operated by the traffic sensing means to automatically open the door for traffic to pass along said traffic path of travel, the improvement wherein the traffic sensing means comprises at least one multiple emitter sensor mounted on each side of the door, each having a bank of a plurality of radiant energy emitters with radiant energy beams having axes angularly spaced along the said traffic path of travel and collectively providing an effective emitted energy coverage area intersecting the said traffic path of travel and radiant energy receiver means adjacent the bank of emitters for receiving reflected radiant energy emitted from the bank of emitters, the said one sensor on each side of the door being mounted adjacent one side edge of the door to provide a said effective coverage area on the respective side of the door which intersects the traffic path of travel when the door is in its said closed position, and wherein the traffic responsive control system further comprises door position responsive means for selectively operating the emitters of each said one sensor by selectively activating those emitters at a plurality of different radiant energy levels and deactivating those emitters to vary the respective effective coverage area as the door is swung between its said closed and open positions.
- 10. In an automatic door installation having a swinging door, a power operator for swinging the door between a closed position thereof closing a doorway opening and an open position thereof on a swing side of the doorway opening, and a traffic responsive control system comprising radiant energy emitter and receiver means for sensing doorway traffic along a traffic path of travel through the doorway opening, and door control means operated by the traffic sensing means to automatically open the door for traffic to pass along said traffic path of travel, the improvement wherein the traffic sensing means comprises at least one multiple emitter sensor mounted on the door having a bank of a plurality of radiant energy emitters with radiant energy beams having axes angularly spaced along the said traffic path of travel and collectively providing an effective emitted energy coverage area intersecting the said traffic path of travel and radiant energy receiver means adjacent the bank of emitters for receiving reflected radiant energy emitted from the bank of emitters, the said one multiple emitter sensor being mounted on the door on said one side of the door which intersects the traffic path of travel when the door is in its said closed position, and wherein the traffic responsive control system further comprises door position responsive means for selectively operating the emitters by selectively activating those emitters at a plurality of different radiant energy levels and deactivating those emitters to vary the said effective coverage area as the door is swung between its said closed and open positions.
- 11. An automatic door installation according to any one of claims 1, 2, 9, or 10 wherein the door position responsive means comprises sensor control means operable at each of a plurality of different angular positions of the swinging door between its closed and open positions for generating emitter control signals at each of said plurality of different angular positions respectively for controlling the said operation of the emitters.
- 12. An automatic door installation according to any one of claims 1, 2, 9 or 10 wherein the traffic sensing means comprises sensor operating means for individually pulsing the emitters of all of said sensors in a predetermined sequence.
- 13. An automatic door installation according to any one of claims 1, 2, 9 or 10 wherein the traffic sensing means comprises sensor operating means for individually pulsing the emitters of all of said sensors in a predetermined sequence for emitting radiant energy pulses therewith in a predetermined sequence and for selectively activating the radiant energy receiver means of each said sensor to receive reflected radiant energy pulses from each emitter of the respective sensor.
- 14. An automatic door installation according to any one of claims 1, 2, 9 or 10 wherein the traffic sensing means comprises sensor operating means for individually pulsing the emitters for emitting radiant energy pulses and presence signal generating means for each sensor for separately accumulating the number of emitted radiant energy pulses and the number of pulses received by the respective receiver means and for transmitting a presence signal for operating the door control means when there is a predetermined accumulated number of received pulses during a predetermined number of emitted pulses.
- 15. An automatic door installation according to claim 1 or 2 wherein the bank of emitters comprises a set of a plurality of said emitters mounted for emitting radiant energy emission beams having axes with a substantially constant angular spacing.
- 16. An automatic door installation according to claim 15 wherein said substantially constant angular spacing is approximately 15 degrees.
- 17. An automatic door installation according to any one of claims 1, 2, 9 or 10 wherein each sensor has a first set of a plurality of five inwardly facing radiant energy emitters and a second set of at least two outwardly facing radiant energy emitters.
- 18. An automatic door installation according to claim 5 or 8 wherein each said non-swing side sensor has a primary set of a plurality of five inwardly facing radiant energy emitters.
- 19. An automatic door installation according to claim 1, 9 or 10 wherein each emitter is an LED emitter and wherein the traffic sensing means comprises sensor operating means for regulating the emitter drive voltage of each emitter.
- 20. An automatic door installation according to claim 19 wherein the sensor operating means includes means for pulsing the emitters for emitting radiant energy pulses and pulse width control means to establish a predetermined short radiant energy pulse width.
- 21. An automatic door installation according to claim 1, 9 or 10 wherein the traffic sensing means comprises sensor operating means for pulsing the emitters individually in succession for emitting successive radiant energy pulses in accordance with a predetermined encoded pulse spacing.
- 22. An automatic door installation according to claim 21 wherein the sensor operating means comprises a constant frequency pulse source and a pulse position modulator settable for establishing said predetermined encoded pulse spacing.
- 23. An automatic door installation according to any one of claims 1, 2, 9 or 10 wherein the traffic sensing means comprises sensor operating means for individually and sequentially pulsing the emitters in pulse bursts for sequentially emitting a radiant energy pulst with each emitter, receiver select means for selectively activating the receiver means when a respective emitter is being pulsed, and a single presence signal generating means for all of the receiver means for transmitting a presence signal for operating the door control means when a predetermined number of pulses are received by the receiver means during a predetermined number of emitted pulses.
- 24. An automatic door installation according to claim 23 wherein the traffic sensing means comprises indicator means for indicating when a presence signal is generated by a sensor.
- 25. An automatic door installation according to any one of claims 1, 9, or 10 wherein each emitter is an LED emitter and wherein each said multiple emitter sensor comprises emitter support means adapted to be mounted on the door and having a plurality of LED emitter support bores therein for the plurality LED emitters respectively, the LED emitter support bores having angularly spaced axes corresponding to said angularly spaced axes of the radiant energy beams respectively and receiving the LED emitters to align the axes of the radiant energy emission beams from the LED emitters with the bore axes respectively.
- 26. A radiant energy emitter system, for use in an automatic door installation, according to claim 25, wherein the emitter support means comprises at least one emitter support block having a plurality of said LED emitter support bores.
Parent Case Info
This application is a continuation-in-part of our copending patent application field Nov. 28, 1983, assigned Ser. No. 555,565 and entitled "Traffic Responsive Control System For Automatic Swinging Door".
US Referenced Citations (6)
Non-Patent Literature Citations (3)
Entry |
Installation Manual, US-021, Vision Pulse, pp. 0984 through 1005. |
Multiscan Installation Instructions and Service Guide, Jan., 1974, pp. 1063 throgh 1080. |
Multiscan Hook-up and Service, Aug., 1977, pp. 1103 through 1115. |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
555565 |
Nov 1983 |
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