Elevator system

Claim 2

An elevator system, comprising: a structure having a plurality of landings, at least one elevator car mounted for movement relative to said structure to serve the landings, said at least one elevator car including first control means disposed in the elevator car, second control means disposed at a point remote from the elevator car, and first data link means interconnecting said first and second control means, said first control means including means providing data for said second control means, means storing said data, and first multiplexing means, said first multiplexing means time multiplexing said stored data to said second control means over said first data link means at a first predetermined rate.

Claim 3

The elevator system of claim 1 including scan counter means which repetitively counts through a predetermined group of numbers at the first predetermined rate to provide a plurality of scan slots, with the landings of the structure being assigned to different scan slots, and wherein the data provided by the first control means which relates to specific landings is multiplexed by the first multiplexing means into the scan slot assigned to the landing that the data is associated with.

Claim 4

The elevator system of claim 1 wherein the first control means includes car call registering means for passengers in the elevator car to register their requests for service to the various landings.

Claim 5

The elevator system of claim 3 wherein the means for storing the data provided by the first control means includes memory means for each landing of the structure to be served by the at least one elevator car, each of said memory means being set from a first condition to a second condition when a passenger registers a request on the car call registering means for service to the landing associated with the memory means.

Claim 6

An elevator system, comprising: a structure having a plurality of landings, at least one elevator car mounted for movement relaTive to said structure to serve the landings, said at least one elevator car including first control means disposed in the elevator car, said first control means including car call registering means for passengers in the elevator car to register their requests for service to the various landings, second control means disposed at a point remote from the elevator car, first data link means interconnecting said first and second control means, said first control means including means providing data for said second control means, means storing said data including memory means for each landing of the structure to be served by the at least one elevator car, each of said memory means being set from a first condition to a second condition when a passenger registers a request on the car call registering means for service to the landing associated with the memory means, and first multiplexing means, said first multiplexing means time multiplexing said stored data to said second control means over said first data link means at a first predetermined rate, said second control means including reset means for providing car call reset data, and second multiplexing means said second multiplexing means time multiplexing said car call reset data to said first control means over said first data link means at the first predetermined rate, said car call reset data resetting a set memory means to its first condition.

Claim 7

An elevator system, comprising: a structure having a plurality of landings, at least one elevator car mounted for movement relaTive to said structure to serve the landings, said at least one elevator car including first control means disposed in the elevator car, said first control means including car call registering means for passengers in the elevator car to register their requests for service to the various landings, second control means disposed at a point remote from the elevator car, first data link means interconnecting said first and second control means, said first control means including means providing data for said second control means, means storing said data including memory means for each landing of the structure to be served by the at least one elevator car, each of said memory means being set from a first condition to a second condition when a passenger registers a request on the car call registering means for service to the landing associated with the memory means, and first multiplexing means, said first multiplexing means time multiplexing said stored data to said second control means over said first data link means at a first predetermined rate, said second control means including reset means for providing car call reset data, and second multiplexing means said second multiplexing means time multiplexing said car call reset data to said first control means over said first data link means at the first predetermined rate, said car call reset data resetting a set memory means to its first condition.

Claim 8

The elevator system of claim 5 including scan counter means which repetitively scans through a predetermined group of numbers at the first predetermined rate, to provide a plurality of scan slots, with the landings of the structure being assigned to different scan slots, and wherein the landing related data provided by the first and second control means is multiplexed by the first and second multiplexing means, respectively, into the scan slots assigned to the landings the data is associated with.

Claim 9

An elevator system, comprising: a structure having a plurality of landings, a plurality of elevator cars mounted for movement relative to said structure to serve the landings, each of said elevator cars including first control means disposed in the elevator car, second control means disposed at a point remote from the elevator car, and first data link means interconnecting said first and second control means, said first control means including means providing data for said second control means, means storing said data, and first multiplexing means, said first multiplexing means time multiplexing said stored data to said second control means over said first data link means at a first predetermined rate, third control means for directing the movement of the plurality of elevator cars, and second data link means interconnecting said third control means with the second control means of each of the plurality of cars, said second control means including second multiplexing means for time multiplexing data received from the first control means over the first data link means to the third control means over the second data link means at a second predetermined rate which exceeds the first data rate.

Claim 10

An elevator system, comprising: a structure having a plurality of landings, a plurality of elevator cars mounted for movement relative to said structure to serve the landings, each of said elevator cars including first control means disposed in the elevator car, second control means disposed at a point remote from the elevator car, and first data link means interconnecting said first and second control means, said first control means including means providing data for said second control means, means storing said data, and first multiplexing means, said first multiplexing means time multiplexing said stored data to said second control means over said first data link means at a first predetermined rate, third control means for directing the movement of the plurality of elevator cars, and second data link means interconnecting said third control means with the second control means of each of the plurality of cars, said second control means including second multiplexing means for time multiplexing data received from the first control means over the first data link means to the third control means over the second data link means at a second predetermined rate which exceeds the first data rate.

Claim 11

The elevator system of claim 7 wherein the second control means provides data for the third control means and the second multiplexing means time multiplexes this data to the third control means along with the data from the first control means.

Claim 12

The elevator system of claim 7 wherein the third control means provides data for each of the elevator cars, and including third multiplexing means for time multiplexing this data to the second control means of the elevator cars over the second data link means at the second predetermined rate.

Claim 13

The elevator system of claim 7 including scan counter means which repetitively scans through a predetermined group of numbers at the first predetermined rate to provide a plurality of basic scan slots, with the landings of the structure being assigned to different basic scan slots, wherein The second predetermined data rate is a predetermined multiple of the first predetermined data rate, providing a predetermined plurality of high speed scan slots during each basic scan slot.

Claim 14

The elevator system of claim 10 wherein landing related data provided by the first, second and third control means is multiplexed by the first, second and third multiplexing means, respectively, into the basic scan slots assigned to the landings the data is associated with, with landing related data in the high speed scan slots occurring during the basic scan slot which is assigned to the associated landing.

Claim 15

An elevator system, comprising: a structure having a plurality of landings, at least one elevator car mounted for movement relative to said structure to serve the landings, said at least one elevator car including first control means disposed in the elevator car, second control means disposed at a point remote from the elevator car, and first data link means interconnecting said first and second control means, said first control means including means providing data for said second control means, means storing said data, and first multiplexing means, said first multiplexing means time multiplexing said stored data to said second control means over said first data link means at a first predetermined rate, said data provided by the first control means being at a first predetermined voltage level, means increasing the voltage level of the data to a second voltage level prior to transmitting it to the second control means, and means in the second control means for reducing the voltage level.

Claim 16

An elevator system, comprising: a structure having a plurality of landings, at least one elevator car mounted for movement relative to said structure to serve the landings, said at least one elevator car including first control means disposed in the elevator car, second control means disposed at a point remote from the elevator car, and first data link means interconnecting said first and second control means, said first control means including means providing data for said second control means, means storing said data, and first multiplexing means, said first multiplexing means time multiplexing said stored data to said second control means over said first data link means at a first predetermined rate, said data provided by the first control means being at a first predetermined voltage level, means increasing the voltage level of the data to a second voltage level prior to transmitting it to the second control means, and means in the second control means for reducing the voltage level.

Claim 17

The elevator system of claim 9 wherein the second control means includes fourth multiplexing means for time multiplexing the data received from the third control means to the first control means at the first predetermined data rate.

Claim 18

An elevator system, comprising: a structure having a plurality of landings, a plurality of elevator cars mounted for movement relative to said structure to serve the landings, each of said elevator cars including first control means disposed in the elevator car, and second control means disposed at a point remote from the elevator car, said first control means including means providing data for said second control means, and means time multiplexing said data to said second control means at a first predetermined rate, third control means for directing the movement of the plurality of elevator cars, said second control means including means time multiplexing the data received from the first control means to the third control means at a second predetermined rate which exceeds the first data rate.

Claim 19

An elevator system, comprising: a structure having a plurality of landings, a plurality of elevator cars mounted for movement relative to said structure to serve the landings, each of said elevator cars including first control means disposed in the elevator car, and second control means disposed at a point remote from the elevator car, said first control means including means providing data for said second control means, and means time multiplexing said data to said second control means at a first predetermined rate, third control means for directing the movement of the plurality of elevator cars, said second control means including means time multiplexing the data received from the first control means to the third control means at a second predetermined rate which exceeds the first data rate.

Claim 20

The elevator system of claim 14 wherein the third control means includes means providing data, and means multiplexing this data to the second control means at the second predetermined rate.

Claim 21

The elevator system of claim 15 wherein the second control means includes means multiplexing the data received from the third control means to the first control means at the first predetermined rate.

Claim 22

An elevator system, comprising: a structure having a plurality of landings, at least one elevator car mounted for movement relative to said structure to serve the landings, said at least one elevator car including first control means disposed in the elevator car, second control means disposed at a point remote from the elevator car, and means interconnecting said first and second control means, said first control means including means providing data for said second control means, and means time multiplexing said data to said second control means, said data provided by the first control means being at a first predetermined voltage level, means increasing the voltage level of the data to a second voltage level prior to transmitting it to the second control means, and means in the second control means for reducing the voltage level.

Claim 23

An elevator system, comprising: a structure having a plurality of landings, at least one elevator car mounted for movement relative to said structure to serve the landings, said at least one elevator car including first control means disposed in the elevator car, second control means disposed at a point remote from the elevator car, and means interconnecting said first and second control means, said first control means including means providing data for said second control means, and means time multiplexing said data to said second control means, said data provided by the first control means being at a first predetermined voltage level, means increasing the voltage level of the data to a second voltage level prior to transmitting it to the second control means, and means in the second control means for reducing the voltage level.

Claim 24

The elevator system Of claim 17 wherein the second control means includes means providing data for the first control means, and means time multiplexing this data to the first control means, said data provided by the second control means being at a first predetermined voltage level, and including means in the second control means increasing the voltage level of the data to a second voltage level prior to transmitting it to the first control means, and means in the first control means for reducing the voltage level.