Vehicular safety sensor and warning system
First Claim
1. A safety system for use in combination with a motor vehicle which transports personnel and which has periods of time during which said vehicle is stopped and undergoes loading or unloading of personnel, said safety system comprising first means for sensing the presence of a person within an area at least in close proximity to said vehicle and externally thereof, wherein said area is considered as a danger zone whereby any person within said danger zone is at risk of being injured by said vehicle if said vehicle should start into motion from its stopped condition, second means for creating a first sensory warning signal whenever said first means senses the presence of a person within said danger zone, wherein said first sensory warning signal is created within said vehicle as to thereby make the driver of said vehicle aware of a person being detected in said danger zone, third means for creating a second sensory warning signal whenever said first means senses the presence of a person within said danger zone, wherein said second warning signal is created generally externally of said vehicle as to thereby make the person within said danger zone aware that said person'"'"'s presence within said danger zone has been detected and that said person is in said danger zone, wherein said second means continues creating said first sensory warning signal and said third means continues creating said second sensory warning signal at least for as long as said person is detected by said first means as being in said danger zone, and further comprising traffic horn means carried by said motor vehicle for manual actuation by said driver as during operation of said motor vehicle during normal traffic operation as to thereby create a horn warning sound to drivers of other vehicles in such traffic, and additional means responsive to said motor vehicle being stopped and undergoing loading or unloading of personnel and effective for automatically causing cyclic energization and de-energization of said vehicular traffic horn means when a person is detected as being within said danger zone.
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Accused Products
Abstract
A safety sensor and warning system, for use in combination with a motor vehicle, has sensors for determining if personnel are present in one or more predetermined danger zones proximate to the vehicle, during times when the vehicle is undergoing the loading and/or unloading of personnel; if the presence of such personnel is determined within any one or more of such danger zones related warning apparatus such as lamps and/or horn create a sensory warning signal whereby the driver of the vehicle is made aware of such presence by the personnel as well as warning the personnel within the danger zones and others beyond the danger zone of the presence of such personnel; Microwave Doppler Shift Radar detects objects by reacting to a reflected radio signal of controlled strength and frequency which shifts off its original frequency when reflected off of an object of adequate density moving into, or changing position, within the range of the radiated radio signal and its consequent reflection; the sensors for determining if personnel are present in one or more predetermined danger zones utilize this known Microwave Doppler Shift Radar Technology and are electronically and physically designed to detect objects of only predetermined density or mass which translates to an animate object, as a person, and to not detect small debris-type objects such as, for example, leaves, snowflakes, light rainfall, fog, blowing dust, small tree limbs, rocks and birds.
66 Citations
64 Claims
- 1. A safety system for use in combination with a motor vehicle which transports personnel and which has periods of time during which said vehicle is stopped and undergoes loading or unloading of personnel, said safety system comprising first means for sensing the presence of a person within an area at least in close proximity to said vehicle and externally thereof, wherein said area is considered as a danger zone whereby any person within said danger zone is at risk of being injured by said vehicle if said vehicle should start into motion from its stopped condition, second means for creating a first sensory warning signal whenever said first means senses the presence of a person within said danger zone, wherein said first sensory warning signal is created within said vehicle as to thereby make the driver of said vehicle aware of a person being detected in said danger zone, third means for creating a second sensory warning signal whenever said first means senses the presence of a person within said danger zone, wherein said second warning signal is created generally externally of said vehicle as to thereby make the person within said danger zone aware that said person'"'"'s presence within said danger zone has been detected and that said person is in said danger zone, wherein said second means continues creating said first sensory warning signal and said third means continues creating said second sensory warning signal at least for as long as said person is detected by said first means as being in said danger zone, and further comprising traffic horn means carried by said motor vehicle for manual actuation by said driver as during operation of said motor vehicle during normal traffic operation as to thereby create a horn warning sound to drivers of other vehicles in such traffic, and additional means responsive to said motor vehicle being stopped and undergoing loading or unloading of personnel and effective for automatically causing cyclic energization and de-energization of said vehicular traffic horn means when a person is detected as being within said danger zone.
- 26. A safety system for use in combination with a motor vehicle which transports personnel and which has periods of time during which said vehicle is stopped and undergoes loading or unloading of personnel, said safety system comprising first means for sensing the presence of a person within an area at least in close proximity to said vehicle and externally thereof, wherein said area is considered as a danger zone in that any person within said danger zone is at risk of being injured by said vehicle if said vehicle should start into motion from its stopped condition, second means for creating a first sensory warning signal whenever said first means senses the presence of a person within said danger zone, third means for creating a second sensory warning signal whenever said first means senses the presence of a person within said danger zone, wherein at least one of said first and second sensory warning signals is created within said vehicle as to thereby make the driver of said vehicle aware of a person being detected in said danger zone, wherein said second means continues creating said first sensory warning signal and said third means continues creating said second sensory warning signal at least for as long as said person is detected by said first means as being in said danger zone, and further comprising traffic horn means carried by said motor vehicle for manual actuation by said driver as during operation of said motor vehicle during normal traffic operation as to thereby create a horn warning sound to drivers of other vehicles in such traffic, and additional means responsive to said motor vehicle being stopped and undergoing loading and unloading of personnel and effective for automatically causing cyclic energization and de-energization of said vehicular traffic horn means when a person is detected as being within said danger zone.
- 34. A school bus for the transport of school age children, said bus comprising a bus body structure, said bus body structure comprising left side and right side exterior body panel means, said body structure further comprising front exterior body panel means operatively connected to both said left and right side exterior body panel means, said body structure further comprising rear exterior body panel means operatively connected to both said left and right side exterior body panel means, a bus interior defined generally by and between said left and right side exterior body panel means and between said front and rear exterior body panel means, a door opening formed in at least one of said side exterior body panel means for access to said bus interior as well as egress from said bus interior, a bus door effective for opening and closing said door opening, a bus driver'"'"'s area within said bus interior and provided with driver controlled bus steering means and with an array of operating controls, a first plurality of warning-type lamp assemblies carried by said bus body structure at a rearward portion of said bus body structure and positioned as to when energized emit a warning light generally rearwardly of said bus body structure, a second plurality of warning-type lamp assemblies carried by said bus body structure at a forward portion of said bus body structure and positioned as to when energized emit a warning light generally forwardly of said bus body structure, a flasher controller situated generally in said bus driver'"'"'s area and operatively connected to said first plurality of warning-type lamp assemblies and to said second plurality of warning-type lamp assemblies, said flasher controller being effective when actuated to energize said first plurality of warning-type lamp assemblies and to energize said second plurality of warning-type lamp assemblies, electrical switch means effective to be electrically closed when said bus is stopped to permit loading or unloading of said children, said electrical switch means when electrically closed being effective to actuate said flasher controller and cause energization of said first and second pluralities of warning-type lamp assemblies, wherein said energization of said first and second pluralities of warning-type lamp assemblies is cyclic thereby causing said first and second pluralities of warning-type lamp assemblies to operate in a flashing mode and emit a flashing light, a plurality of sensor assemblies carried by said bus, a first of said plurality of sensor assemblies being carried generally beneath said bus body structure and near a forward portion thereof and situated as to be operationally forwardly directed, a second of said plurality of sensor assemblies being operatively carried by said bus body structure and situated as to be operationally rearwardly directed, a third of said plurality of sensor assemblies being operatively carried by said bus body structure generally inwardly of said left side exterior body panel means and situated as to be operationally directed leftward of said bus body structure, a fourth of said plurality of sensor assemblies being operatively carried by said bus body structure generally inwardly of said right side exterior body panel means and situated as to be operationally directed rightward of said bus body structure, wherein each of said first second third and fourth sensor assemblies comprises a housing, wherein said housing comprises printed circuit means electrically connected to a K-band radar transceiver and carrying electrical components for both controlling the operation of said K-band transceiver and for responding to the operation of said K-band transceiver, adjustment means carried within said housing for selectively adjusting and establishing the field of radar radiation to which said transceiver will be responsive, read-out means situated in said driver'"'"'s area, said read-out means comprising at least four energizable light sources, wherein a first of said at least four light sources is functionally related to and operationally coupled to said first sensor assembly, wherein a second of said at least four light sources is functionally related to and operatively coupled to said second sensor assembly, wherein a third of said at least four light sources is functionally related to and operatively coupled to said third sensor assembly, wherein said fourth of said at least four light sources is functionally related to and operatively coupled to said fourth sensor assembly, whereby when said flasher controller is actuated electrical power is supplied to each of said at least first second third and fourth sensor assemblies for energization thereof including all of said K-band radar transceivers, when energized the radar transceiver of said first sensor assembly being effective to monitor a first area generally forwardly of said bus body structure in order to detect the presence of any person in said first area, when energized the radar transceiver of said second sensor assembly being effective to monitor a second area generally rearwardly of said bus body structure in order to detect the presence of any person in said second area, when energized the radar transceiver of said third sensor assembly being effective to monitor a third area generally outwardly of said left side exterior body panel means in order to detect the presence of any person in said third area, when energized the radar transceiver of said fourth sensor assembly being effective to monitor a fourth area generally outwardly of said right side exterior body panel means in order to detect the presence of any person in said fourth area, upon detecting a person in said first area the radar transceiver of said first sensor assembly causing said first of said at least four light sources to be electrically energized thereby producing a first output light, upon detecting a person in said second area the radar transceiver of said second sensor assembly causing said second of said at least four light sources to be electrically energized thereby producing a second output light, upon detecting a person in said third area the radar transceiver of said third sensor assembly causing said third of said at least four light sources to be electrically energized thereby producing a third output light, upon detecting a person in said fourth area the radar transceiver of said fourth sensor assembly causing said fourth of said at least four light sources to be electrically energized thereby producing a fourth output light, said first output light serving to indicate to said driver that a person has been detected in said first area, Said second output light serving to indicate to said driver that a person has been detected in said second area, said third output light serving to indicate to said driver that a person has been detected in said third area, said fourth output light serving to indicate to said driver that a person has been detected in said fourth area, and further comprising bus carried traffic horn means for manual actuation by said driver as during operation of said bus during normal traffic operation as to thereby create a horn warning sound to drivers of other vehicles in such traffic, and additional means responsive to said bus being stopped and undergoing loading or unloading of personnel and effective for automatically causing cyclic energization and de-energization of said bus carried traffic horn means when a person is detected in any of said first second third or fourth areas.
Specification