Patent EA-003307-B1 (EA)
Title: Method of identification movable objects
Inventor: KUZMIN YURY ANDRIANOVICH
IPC: G07B15/02
Filed: 2002-04-16
Abstract: 1. A method of identification moving objects, comprising the steps of: providing each of the moving objects with an identifier, capable to respond to unique signal sequence while identifying it and storing said unique signal sequence as corresponding identifiers in the memory of control units; forming a network of reading devices on routes of possible movement of said moving objects, the reading devices are united by corresponding communication lines with at least one control unit, wherein each of said reading devices is intended for reading said identifiers of moving objects; when a concrete movable object passing next reading device the identifier of said moving object is read by said reading device; transmitting via communication lines to a control unit said unique signal sequence of read identifier and also signals concerning location of corresponding reading device and time of reading of said identifier; characterized in that prior to initiating movement of said moving object the information characterizing said moving object and the route of its movement is added to the identifier from the control unit memory; during the identification the unique signal sequence of the identifier of the concrete moving object read by the concrete reading device and transmitted to the control unit is compared with corresponding signal sequences stored in said memory; in case of coincidence said signal sequence read by the identifier with one of signal sequences stored in said memory, the identified signal sequence is added with at least signals about the location of said reading device and the time of identification of said identifier and store thus corrected signal in said memory of the control unit as the corrected identifier of said moving object, which proves the fact of said moving object identification; by the fact of the identification the information supplementing the identifier of said moving object stored in the memory of the control unit is compared with similar current information transmitted from location of the reading device and by the result of comparison decision is taken for further movement of said moving object. 2. The method according to claim 1, characterized in that the information supplementing the identifier of the moving object includes at least the information concerning characteristics of said moving object and its destination, wherein in case of coincidence the information of location of next reading device with the information of destination of the identified moving object a signal is transmitted to said destination for stopping the movement of said moving object via corresponding communication lines. 3. The method according to claim 1, characterized in that a route covered by a concrete moving object is determined in the control unit based on the information of location of two reading devices passed by said moving object and the predetermined distance between said locations. 4. The method according to claim 1, characterized in that if a concrete moving object is not movable based on said signal comparison between the stored in the control unit and the current information supplementing the identifier of the concrete moving object said corrected signal sequence is blocked for the time till the reason is eliminated. 5. The method according to claim 1, characterized in that in case of movement several moving objects by one group signals of their identifiers are united into a corresponding sequence which is stored in the memory of corresponding control unit wherein when the identifiers of this group are read the identification is carried out by an identifier of one of moving objects from this group. 6. The method according to claim 5, characterized in that in the process of reading the identifiers a number of moving objects in said group are counted and in case an object is detected which is unreadable said moving object is awarded a service signal of the identifier absence transmitted to the control unit instead of unique signal sequence of non-read identifier; in case a real number of moving objects in a group of does not coincide with a number of read-in identifiers and the presence of a service signal of the identifier absence, said service signal of the unique signal sequence of the identifier absence detected by comparing signals of read identifiers of a group of moving objects with stored sequence of identifiers of this group is replaced. 7. The method according to claim 1, characterized in that diagnostic messages are periodically transmitted from each reading device to a corresponding control unit, the content of said messages is taken into account when receiving signals of read identifiers. 8. The method according to claims 1 to 7, characterized in that the information concerning moving objects with identified identifiers and reading devices transmitted read-in identifiers of said moving objects are displayed on a corresponding indicator of a corresponding control unit. 9. A system for identifying moving objects, comprising: identifiers, each provided with a corresponding moving object; at least one reading device located on a route of possible movement of moving objects and intended for identifier reading of each moving object; at least one server connected via corresponding communication lines to each of reading devices for storing at least identifiers; wherein each reading device comprises: a reader for reading identifier of a moving object; and an address former for forming signal sequence corresponding to the address of said reading device; wherein the reading device is adapted to transmit the read-in identifier of the moving object and at least its own address to a sever via a corresponding communication line; characterized in that each server is provided with at least one former of code sequence for forming signal code sequence corresponding to identifier provided to each moving object and information characterizing said moving object and its route, and for transmitting said code sequences to said server for storing as said identifiers; wherein the server is adapted to compare the identifier read by a reading device with stored identifiers; when a pair of being compared identifiers coincide, which proves identification, add information about the read-in identifier of the moving object with an address of the reading device transmitted said identifier as a corrected identifier of said moving object; to compare the stored code sequence of signals of the identified identifier code sequence of signals with a current code sequence of signals transmitted from that reading device which carried out reading and transmitting said identifier; and to take a decision concerning further movement of a moving object with said identifier. 10. The system according to claim 9, characterized in that a reading device further comprises a timer for providing a signal of current time to a server for adding information about the read-in identifier of the moving object. 11. The system according to claim 9, characterized in that the server is adapted to sum up the route passed by the moving object based on signals from corresponding reading devices covered by said moving object and a predetermined distance between locations of said reading device counter of moving object. 12. The system according to claim 9, characterized in that each reading device is further provided with moving objects and is adapted to transmit signals of said counter of moving objects to the server. 13. The system according to claim 12, characterized in that the reading device is adapted to form and transmit to the server a service signal of the identifier absence in case when the counter of moving objects provides a signal about the presence of next moving object the identifier of which is not read by the reader of said reading device, wherein the server, in case of movement of several objects by one group, is adapted: to memorize the identifiers of said group of moving objects in a corresponding sequence; to compare received number of moving objects counted by any reading device and a number of read-in identifiers; and in case of their non-coincidence and the absence of a service signal of identifier replace it to a corresponding identifier discovered from comparison of read-in of sequence of identifiers of concrete group of moving objects with the stored sequence of identifiers of said group. 14. The system according to any of claims 9 to 13, characterized in that the server further comprises an indicator of moving objects for showing the location of each moving object, and the server is adapted to transmit information concerning moving objects to said indicator of moving objects location.