Abstract:
An elevator security system for a building includes data relating to a floor that a user may access in the building, a device in which the data is stored, a credential containing the data in a machine readable format and created by the user, and a first machine reader reading the credential and sending data therein to the device for querying whether the user may access the floor, the device allowing access to an elevator car for transport to the floor if the credential is in sync with the data stored in the device.

Description:
TECHNICAL DETAILS 
     This system relates to elevator security systems and more particularly to security systems which have fixed serviceable floor information disposed in a machine readable form. 
     BACKGROUND 
     Building security systems are becoming increasingly more important. Many buildings have sign-in stations, security guards, machine readable security credentials, smart turnstiles that manage the count of people entering and leaving a building, video surveillance, and more. 
     Businesses disposed in buildings would prefer that only people who are entitled to be on the floors that they inhabit be populated with people who have permission to be there. Moreover, many high rises have elevators which open directly into residences or secured areas. 
     SUMMARY 
     According to an embodiment disclosed herein, an elevator security system for a building includes data relating to a floor that a user may access in the building, a device storing the data, a credential transmitted to the user, the credential allowing the user to use the data to access the floor, and a first machine reader reading the credential for querying the device whether the user may access the floor, the device providing access to an elevator car for transport to the floor if the credential is in agreement with the data stored in the device. 
     Additionally or alternatively in this or other arrangements, the data also includes the date a user may access the building wherein the device verifies that the user is at the building at the date if the machine reader scans the credential. 
     Additionally or alternatively in this or other arrangements, the data also includes the times a user may access the building if the machine reader scans the credential wherein the device verifies that the user is at the building at the times. 
     Additionally or alternatively in this or other arrangements, the data also includes alternative users. 
     Additionally or alternatively in this or other arrangements, the first machine reader is disposed at a security station. 
     Additionally or alternatively in this or other arrangements, a second machine reader is disposed at a first elevator landing. 
     Additionally or alternatively in this or other arrangements, a third machine reader is disposed at a second elevator landing. 
     Additionally or alternatively in this or other arrangements, the first machine reader is disposed at a first elevator landing. 
     Additionally or alternatively in this or other arrangements, the second machine reader is disposed at a second elevator landing. 
     Additionally or alternatively in this or other arrangements, the device maintains a count of elevator usage by said user. 
     Additionally or alternatively in this or other arrangements, the data is also stored in the credential. 
     Additionally or alternatively in this or other arrangements, a reference to the data is stored in the credential. 
     Additionally or alternatively in this or other arrangements, the credential is a bar code, a data matrix or an RFID tag. 
     Additionally or alternatively in this or other arrangements, the credential is displayed on a personal data assistant. 
     According to a further embodiment disclosed herein, sending a credential electronically to a user of a building, sending data as to a first floor that user may utilize in said building to a device for said building, placing said credential in a machine readable format remote from said building, automatically reading said machine readable format at said building and submitting the machine readable format to said device that sends an elevator car to deliver said user to said first floor if said read machine readable format is in agreement with said data. 
     Additionally or alternatively in this or other arrangements, the method further includes the step of verifying the user&#39;s identity before allowing access to an elevator. 
     Additionally or alternatively in this or other arrangements, the method further includes the step of automatically reading the data in a machine readable format at a security station. 
     Additionally or alternatively in this or other arrangements, the method further comprises sending data as to a date a user may access the floor and the times of the day a user may access the floor on the date. 
     Additionally or alternatively in this or other arrangements, the method further includes the step of reading the data in machine readable format at the first floor, and allowing the user to go to a second floor in an elevator if the data in machine readable format is in sync with data in the device. 
     Additionally or alternatively in this or other arrangements, the method includes the further step of maintaining a count of elevator usage by the user. 
     Additionally or alternatively in this or other arrangements, the method further comprises sending said data within said credential. 
     Additionally or alternatively in this or other arrangements, the method further comprises sending a reference to said data within said credential. 
     According to a further embodiment disclosed herein, an elevator system includes data relating to a floor that a user may access in the building, a device storing the data, a credential transmitted to the user, the credential allowing the user to use the data to access the floor, and a first machine reader reading the credential for querying the device whether the user may access the floor, the device assigning an elevator car for transport to the floor if the credential is in agreement with the data stored in the device. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  relates to a building in which the security system described herein is utilized. 
         FIG. 2  is a diagram of a process used to practice the system shown in  FIG. 1 . 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     Referring now to  FIG. 1 , if person A and person B wish to have person A visit or work in building  10  they communicate with each other. Person A may be a vendor, a customer, a visitor, a salesperson or the like. Person B then enters a computer terminal  15  and enters information into that terminal relative to Person A&#39;s business in the building  10 . Such information may include floors that Person A may visit, dates in which those floors may be accessed, persons that may be able to take Person A&#39;s place, groups of people, times during the day which that person(s) may enter building, times when Person A may access each designated floor, a business name etc. This information is hereafter referred herein as DATA. 
     The DATA is then transmitted electronically to Person A, via the internet or other suitable means, who creates or prints it out as a credential  20  in a machine readable, two-dimensional format, such as a bar code or as a data matrix, on printer  22  or uses a personal data assistance mechanism or the like to enable display or other transmission of the credential electronically. This two-dimensional format may also be faxed to Person A. Should technology allow it, other machine readable or discernible formats like RFID tags, 3D matrices, or the like may be substituted for the two-dimensional formats. The DATA is also sent to and entered into an elevator/security device  35  by the internet or the like. Person A may have his or her name unencrypted on the credential  20 . Person A may be at a location remote from building  10 . The device  35 , which is shown as an elevator/security system controller, may also comprise separate security and elevator control systems that cooperate with each other. The scanners  30  and  40  may also be other types of readers, such as RF readers and others depending on the type of the credential  20  issued as noted above. 
     As an alternative, the DATA may be maintained in the elevator/security device  35  and a Reference to the DATA may be transmitted to the Person A and downloaded as a credential as stated hereinabove. If the Person A then approaches the building, the Reference, if transmitted to the device  35 , which may be a part of an elevator controller, then calls up the DATA for use as discussed herein infra. 
     At the appointed time and date, User A proceeds to the lobby  25  of the building  10 , Security Guard C verifies the User A&#39;s identification and scans/reads the credential  20  with scanner  30 . Scanner  30  queries the device  35  and gets approval or denial therefrom that the Person A is at building  10  at the proper time and date if the data in the credential  20  is in agreement (e.g., there is a handshake between the data fields and the input data) with the DATA. The device  35  may also assign an elevator car at first floor landing 1 at this point and be directed to that first floor landing 1 by the Guard C. If the credential  20  holds the Reference to the DATA, the device  35  transmits data as to who is the appropriate User A to Security Guard C for verification or User A by the Security Guard C. One of ordinary skill in the art will recognize that the Security Guard C may be any human or electronic sentinel that can verify the credential  20  and/or the identity of User A. 
     User A then takes credential  20  and scans it at a hall scanner  40  that may be the assigned first floor landing 1. The device  35  then sends an elevator car to the first floor landing 1. If the Person A does not have permission to enter the car at the first floor landing guard C may be summoned to the first floor landing 1. 
     In the invention as shown, Person A is given permission to travel to floor landing 8 and an elevator car is dispatched to pick up User A at first floor landing 1 to take User A to either floor landing 8 or floor landing N as permitted by the DATA encrypted in the credential  20 . The device  35  will only allow the elevators to take that User A to those floors within the time frames and dates specified. If the User A wishes to travel between floor landing 8 and floor landing N for instance, the hall scanner  45  reads the credential  20  to allow the user to go to either first floor landing 1 or floor landing N. Similarly, if the user is at floor landing N, the hall scanner  50  will allow the user to go to either floor landing 8 or first floor landing 1. 
     If the building  10  has no lobby  25 , the user may go directly to hall scanner  40  which, after scanning the credential  20 , queries the device  35  that accepts or denies access (via a turnstile or a locked door, both not shown, or the like) and assigns a car to pick up the Person A to send them to the applicable floors on the applicable dates as noted herein above. 
     By limiting the travel of Person A to the floors as designated, locked hallway doors to offices may be eliminated thereby freeing up valuable space, because people who have an invitation to those floors, will come to those floors. 
     Referring now to  FIG. 2 , a method of using the embodiment shown in  FIG. 1  is shown. In step  100 , a person who wishes another to visit or work in building  10  transmits user credential, which may include DATA or a Reference thereto to the visitor/worker/user Person A. Simultaneously, or after step  100 , the data is transmitted to an elevator/security device  35  where the data is entered (step  105 ). 
     In step  110 , the visitor prints, replicates or otherwise places the DATA in a machine readable format or transfers the DATA to a personal data assistance to display a credential  20  and the user moves towards the building  10  at the appointed date and time. In step  115 , Person A determines whether there is a secured lobby  25 . If there is, Person A comes to the lobby  25 , presents the credential  20  and ID to the security guard C while the data is scanned (step  125 ) by querying device  35  to confirm Person A&#39;s identity and the date and time of access. Optionally the querying device may be located at a security door or turnstile. Upon confirmation of the credential the security door or turnstile may be unlocked to allow access. An elevator may also be assigned at this time. The car assignment may be displayed on screen located near the security door, turnstile or on the PDA device itself. 
     If there is no lobby, Person A, as with the user who has to go through security in steps  120  and  125 , goes to the elevator first floor landing 1 in step  130 . In step  135 , the credential  20  in the machine readable format is scanned and a car assigned to the Person A if the data in the credential  20  is in agreement with the DATA, and a count is made. In step  137 , the device  35  verifies the data in the credential  20  is proper and assigns a car for the user if the data is verified. The device maintains a count of where Person A is, and at what times, to further enhance security of the building. 
     Person A then visits an assigned floor in step  140 . Should Person A wish to change floors, the credential  20  is scanned again at a landing scanner (e.g., as an example at landing on floor landing 1, 8 or N)  40 ,  45 , or  50 . The device then verifies the data and assigns a car to take the visitor to the assigned floor. The assigned floor may be the exit floor at landing 1. In addition, the Person A may go to other floor landings or no other floor landings depending on permission given by Person B. 
     If a group of persons is allowed access, person B may create DATA which contains information of a guest group with individual IDs for each member of the group. The group, for example, may not access an elevator by only their individual IDs. The device  35  may allow the guest group to access an elevator if ALL guests&#39; ID were verified. One of ordinary skill in the art will recognize that there are many permutations of allowance a guest group may have. 
     Although embodiments of this invention have been disclosed, a worker of ordinary skill would recognize that certain modifications would come within the scope of this invention. For that reason, the following claims should be studied to determine the true scope and content of this invention.