PASSENGER TRANSPORTATION METHOD AND SYSTEM EMPLOYING THREE-DIMENSIONAL LOCATION DATA
The present invention relates to a method for the control of passenger transportation as defined in the preamble of claim 1. In addition, the invention relates to a passenger transportation system as defined in the preamble of claim 5, designed to serve the pas- senger.
A prior-art system is described in patent specification US 5832363 (H04B 7/26) . This patent discloses a mobile communication system comprising service manage- ment of traffic machine apparatus. The mobile radio system described in the aforesaid specification comprises management of the operation of traffic machines, mobile radio terminals of traffic machines and users of mobile communication, at least one traffic machine for transportation of the aforesaid user, an operation management element for controlling the operation of traffic machines and a radio line management element for the control of the radio lines used by the aforesaid mobile radio terminals. In addition, the aforesaid system also utilizes location data collected from the radio terminal and changes of location data.
This solution does not comprise the possibility that a user of a mobile station and traffic machine, i.e. a passenger and a potential customer of the aforesaid traffic machines could obtain both location coordinates and elevational position data via a wireless radio device carried by the passenger. Nor does the above-described solution contain the possibility of sending these location coordinates and elevational position data obtained from the passenger's wireless ra-
dio device to the operation control system controlling the aforesaid traffic machines.
The object of the invention is to eliminate the draw- backs encountered in the above-mentioned prior-art solution.
In particular, as compared with prior art, the solution of the invention provides the essential improve- ment that the three-dimensional location data of the portable electronic communication device carried by the passenger can be transmitted together with the control message sent by the aforesaid portable electronic communication device via the communication link to the aforesaid control unit of the passenger transportation system. These aforesaid three-dimensional location data comprise the elevational position data and location coordinates of the aforesaid portable electronic communication device. Also transmitted with this control message are the service requests sent by the aforesaid passenger and intended for the passenger transportation system from the aforesaid portable electronic communication device over the communication link to the control unit of the passenger transporta- tion system. According to a preferred embodiment, the aforesaid portable electronic communication device is a communication device designed specifically for use in connection with only a given passenger transportation system or given passenger transportation systems, and in addition the communication by the aforesaid portable electronic communication device takes place independently of the wavelength of the electromagnetic radiation. This aforesaid portable electronic communication device may also be a mobile telephone, a so- called bluetooth device, a pager or a device based on inductive communication.
The aforesaid portable electronic communication device comprises a device producing three-dimensional location data, which generates the three-dimensional location data. This device producing three-dimensional lo- cation data receives longitudinal and latitudinal location data in the form of GPS location data, and in addition the aforesaid device is provided with a means for measuring elevational data, said means preferably consisting of an elevation detector/transmitter. These location data based on longitudinal and latitudinal location data based on GPS location data as well as the elevational data are added to the aforesaid control message comprising a service request, which is sent by the passenger's portable electronic communica- tion device via the communication link to the control unit of the passenger transportation system.
In more precise terms, the method of the invention for the control of passenger transportation is character- ized by what is presented in the characterization part of claim 1. The passenger transportation system of the invention for passenger service is characterized by what is presented in the characterization part of claim 5. The features characteristic of certain other preferred embodiments of the invention are presented in the sub-claims.
As compared with prior art, the solution of the invention provides several significant advantages. The so- lution of the invention makes it possible for the control unit of the passenger transportation system to know and follow the location of the aforesaid portable electronic communication device as well as the location of the passenger using it in a three-dimensional space, which is useful when the passenger sends service requests reserving transport devices to the control unit of the aforesaid passenger transportation
system via the communication link. This is particularly advantageous in large buildings where there are many passengers who need transport devices. As the control unit of the aforesaid passenger transportation system identifies the current location of the passenger needing the services of transport devices by the aid of the portable electronic communication device carried by the passenger, the control unit is able to optimize the selection of an appropriate transport de- vice to serve an appropriate passenger in each situation. This means minimizing both the passenger's waiting time and needless operation of the passenger transportation system.
In the following, the invention will be described in detail with reference to the attached drawings, wherein
Fig. 1 presents a passenger transportation system ac- cording to the best embodiment of the invention
Fig. 2 presents a second embodiment of the invention, wherein a number of different passenger transportation systems are controlled
Fig. 3 presents a basic implementation of a wireless and portable electronic communication device used in the passenger transportation system of the invention
Fig. 4 presents a second embodiment of the portable electronic communication device used in the passenger transportation system of the invention.
Fig. 1 represents a passenger transportation system 1 according to the best embodiment of the invention, comprising a plurality of individual transport devices
2. In addition, this passenger transportation system 1
comprises a control unit 7 controlling the operation of the aforesaid transport devices 2.
The aforesaid control unit 7 of the passenger trans- portation system 1 is connected to a communication link 6, through which it is possible in this case for the passenger 3, using a portable electronic communication device 4 he is carrying with him, to wirelessly send control messages 5 containing service requests addressed to the passenger transportation system 1 comprising several transport devices 2 to the control unit 7 of the passenger transportation system 1. The aforesaid communication link 6 is wirelessly connected to the passenger's 3 portable electronic communication device 4, and in addition the aforesaid communication link 6 communicates with the control unit 7 of the passenger transportation system 1 either via a wired connection and/or a wireless connection. The connection of this aforesaid communication link 6 to the portable electronic communication device 4 is based on the utilization of electromagnetic waves without being in any way limited specifically to a given wavelength range. As an application example on which the communication between the communication link 6 and the port- able electronic communication device 4 is based, let us consider radio waves, in which case the above- mentioned communication link can be called e.g. a repeater station or radio link or base station, such as those commonly used in mobile telephone systems.
The passenger 3 is able to send service requests to the control unit 7 of the passenger transportation system 1 by wireless technique using control messages 5 because the passenger 3 has a portable electronic communication device 4 at his disposal. The aforesaid control messages 5 also comprise other information be-
sides the aforesaid service requests reserving transport devices 2.
The aforesaid portable electronic communication device 4 identifies both its location coordinates and elevational data on a continuous basis. In other words, the aforesaid portable electronic communication device 4 identifies its location three-dimensionally . The aforesaid location data consist of elevational data and location coordinates for both longitude and latitude .
Thus, the basic idea underlying the best embodiment of the invention is that the portable electronic communi- cation device 4 used by the passenger 3 sends its three-dimensional location data appended to the aforesaid control message 5 containing service requests over the aforesaid communication link 6 to the aforesaid control unit 7 of the passenger transportation system 1. The aforesaid control unit 7 of the passenger transportation system 1 takes the location data sent by the passenger's 3 portable electronic communication device 4 into account when dealing with the service requests concerning the transport devices 2.
For the generation of these aforesaid three- dimensional location data, the aforesaid portable electronic communication device 4 comprises a device 23 producing three-dimensional location data, which device again comprises means for generating elevational data and means for receiving GPS location data.
In addition, it is possible that the aforesaid control unit 7 of the passenger transportation system 1 addi- tionally sends back over the communication link 6 a control message 5 to the passenger's 3 portable electronic communication device 5 to indicate which trans-
port device 2 the aforesaid passenger 3 should preferably use. In this case, too, the control message 5 received by the passenger 3 may contain other information besides that mentioned above. Thus, what happens here is two-way communication via the communication link 6 between the passenger 3 and the control unit 7 of the passenger transportation system 1.
In an embodiment of the invention, the passenger transportation system 1 described in the case illustrated in Fig. 1 is an elevator system consisting of a plurality of elevators used as transport devices. In the case of an elevator system, the aforesaid control unit 7 of the passenger transportation system 1 is called group control system.
Fig. 2 illustrates a second embodiment of the invention, in which a number of passenger transportation systems 11, 12, 13, 14, 15, 16 of different types serving the passenger's 3 needs are controlled simultaneously. These passenger transportation systems 11, 12, 13, 14, 15, 16 may be e.g. escalator systems, elevator systems, train systems, taxi systems, bus systems and airplane systems, and so on. As stated, these passenger transportation systems 11, 12, 13, 14, 15, 16 are of different types, differing from each other in respect of the extent of their service area and operating principles.
These passenger transportation systems 11, 12, 13, 14, 15, 16 are controlled by means of a common passenger transportation system 11, 12, 13, 14, 15, 16 control unit 10, to which the passenger 3 sends control messages 8 comprising three-dimensional location data via a communication link 9 in order to allow the operation of the aforesaid passenger transportation systems 11, 12, 13, 14, 15, 16 to be optimized in relation to each
other while at the same time minimizing the traveling time needed by the passenger 3. These aforesaid service requests are intended for different passenger transportation systems 11, 12, 13, 14, 15, 16. The passenger has at his disposal a portable electronic communication device 4, which continuously determines its location three-dimensionally . In other words, the aforesaid portable electronic communication device 4, which is continuously at the passenger's 3 disposal, identifies the elevational data and longitudinal and latitudinal location data, which are transmitted along with a control message 8 via the communication link 9 to the control unit 10 of the passenger transportation systems 11, 12, 13, 14, 15, 16.
In large buildings, a so-called meta-group control system is used to control a plurality of elevators located in different parts of the building. In this case, the aforesaid control unit 10 of the passenger transportation system 11, 12, 13, 14, 15, 16 would correspond to this so-called meta-group control, and the aforesaid passenger transportation systems 11, 12, 13, 14, 15, 16 would correspond to separate elevator groups .
The control units 7, 10 of the passenger transportation systems 11, 12, 13, 14, 15, 16 presented in Fig. 1 and 2 are not necessarily based on the same technical operating principle, neither are the control mes- sages 5 and 8 shown in said figures based on the same principles, which should be obvious to the person skilled in the art. For instance, the control messages 5 and 8 may differ from each other in respect of their frequency range .
Fig. 3 illustrates a basic embodiment of the portable electronic communication device 4 used in the passen-
ger transportation system 1, 11, 12, 13, 14, 15, 16 of the invention. The passenger 3 must at least have such a device 4 at his disposal to send control messages 5, 8 containing service requests reserving transport de- vices 2 by wireless communication 22 to the control unit 7, 10 of the passenger transportation system 1 over a communication link 6, 9. The aforesaid portable electronic communication device 4 comprises a user interface consisting of a display 18 for showing mes- sages to the passenger 3 and a keypad 17 that the passenger 3 can use to type messages to be sent forward over the communication link 6, 9 as control messages 5, 8 to the control unit 7, 10 of the passenger transportation system. The portable electronic communica- tion device 4 presented in Fig. 3 additionally comprises a means 19 for establishing a wireless connection to the aforesaid communication link 6, 9 by emitting electromagnetic radiation of a given wavelength.
The portable electronic communication device 4 presented in Fig. 3 comprises a device 23 producing three-dimensional location data, the location data produced by said device being appended to the control message 5, 8 transmitted by the aforesaid portable electronic communication device 4 in addition to the service requests given by the passenger and intended for different passenger transportation systems 1. These aforesaid three-dimensional location data consist of elevational data and location data for both longitude and latitude. The aforesaid device 23 producing three-dimensional location data is designed to generate both GPS location data and elevational data, which is why the device 23 producing three-dimensional location data also comprises means for generating said data. Such a device producing elevational data and comprised in the device 23 producing three-dimensional
location data is e.g. an elevation detector or transmitter outputting an electric measurement signal.
Fig. 4 presents another possible embodiment of the portable electronic communication device 4 used in the passenger transportation systems 1, 11, 12, 13, 14, 15, 16 of the invention, comprising a microphone 20 through which the passenger 3 can speak messages to be sent further via the communication link 6, 9 to the control unit 7, 10 of the passenger transportation system. In this embodiment, it is also possible utilize speech recognition to generate the above-mentioned control messages 5, 8. Moreover, the passenger 3 can receive messages via a loudspeaker 21 in addition to visual messages received via a display 18. In other words, the aforesaid passenger 3 can receive messages from his portable electronic communication device 4 audiovisually either via the loudspeaker 21 and/or via the display 18 and input messages to the aforesaid portable electronic communication device 4 using either the keypad 17 and/or the microphone 20.
The passenger's 3 portable electronic communication device 4 presented in Fig. 3 and in Fig. 4 for commu- nicating with the control unit 7, 10 of the passenger transportation system 1 via a communication link 6, 9 has been designed to be used only in a given passenger transportation system or in given passenger transportation systems 1, 11, 12, 13, 14, 15, 16. In this case, the aforesaid wireless communication 22 between the portable electronic communication device 4 and the communication link 6, 9 takes place independently of the frequency of the electromagnetic radiation. The frequency of the electromagnetic radiation used in the wireless communication can be selected in this connection separately for each passenger transportation system. The aforesaid portable electronic communication
device 4 of the passenger 3 may also consist of either a mobile telephone or a pager or a so-called bluetooth device connected to an actual mobile telephone by wireless and/or wired short-range communication. The aforesaid portable electronic communication device 4 may also be a device based on an inductive link.
In addition, in the case of a mobile telephone, the aforesaid portable electronic communication device 4 may be connected to various radio systems, which may be GSM, UMTS or GPRS radio systems. If the aforesaid wireless communication is implemented by utilizing radio waves, then the means 19 presented in Fig. 3 and 4 is an antenna, which produces the radiation needed for the wireless connection 22 and used for radio communication.
In the foregoing, the invention has been described by way of example with reference to the attached drawings while different embodiments of the invention are possible within the inventive idea defined in the claims.