JP4025704B2 - Work completion detection system - Google Patents

Description

  The present invention relates to a work completion detection system that is used, for example, to detect the completion of a cleanup work for each passenger seat provided in a restaurant.

  A vacant seat management system developed for a restaurant such as a conventional restaurant has a vacant seat for a customer who has finished eating and drinking immediately after completing the accounting process. However, in reality, if the clerk does not clean the audience seats by cleaning up used dishes, the audience seats cannot be used. For this reason, the next passenger has been guided to the vacant seat, but the clean-up work has not yet been completed, and there has been a possibility that the customer's trust may be lost by making the customer feel uncomfortable.

Therefore, in the past, the clerk at the order terminal where the store clerk inputs order information such as dishes ordered by the customer, the table is cleared after the customer leaves the seat, and vacant seats such as a switch that inputs that the preparation is completed for the next customer There has been a technique for providing an information input means and setting the passenger seat to a vacant state only after the completion of preparation is input by operating the vacant seat information input means (see, for example, Patent Document 1).
JP 2002-123870 A

  However, in the conventional technology as described above, the clerk had to operate the vacant seat information input means provided in the order terminal after finishing the table cleaning work. May not be managed as a vacant seat forever. In addition, the store clerk had to bother to pick up an order terminal unnecessary for the cleanup operation and operate the vacant seat information input means after completing the cleanup operation.

  The present invention has been made based on such circumstances, and the purpose of the present invention is to automatically detect the completion of the work for clearing the passenger seat and to manage the vacant seat with certainty. It is an object of the present invention to provide a work completion detection system that can reduce the burden on a staff member who performs cleanup work.

  The present invention attaches a wireless tag to an article that is brought into a guest seat in a restaurant or the like and cleaned up after use by the customer. Each passenger seat is provided with a wireless tag reader for detecting a wireless tag attached to an article carried into the passenger seat. Then, by monitoring the output of each wireless tag reader and acquiring the wireless tag reader that has changed from the wireless tag detection state to the non-detection state, the passenger seat provided with the wireless tag reader is determined. Then, the completion of the determined cleaning operation of the passenger seat is detected.

  According to the present invention in which such measures are taken, it is possible to automatically detect that the used seat clearance operation has been completed, and it is possible to reliably manage the vacant seat state of the passenger seat and perform the clearance operation. A work completion detection system that can reduce the burden on the staff can be provided.

The best mode for carrying out the present invention will be described below with reference to the drawings.
As shown in FIG. 1, this embodiment is a case where the present invention is applied to vacant seat management for each seat in a restaurant having eight seats (guest rooms 1 to 8). is there.

(First embodiment)
First, a first embodiment will be described with reference to FIGS.
In the present embodiment, as shown in FIG. 2, a cup or a dish, which is an article that is brought into the passenger seat and cleaned up after use by the customer, wirelessly transmitting information stored in response to the inquiry radio wave. It is attached to each tableware 2 such as. In addition, as shown in FIG. 1, wireless tag readers 3-1 to 3-8 that transmit an inquiry radio wave to the wireless tag 1 and receive the response radio wave to detect the wireless tag 1 are connected to each passenger seat (guest room 1). -It is attached to the dining tables 4-1 to 4-8 installed in the guest room 8). The wireless tag readers 3-1 to 3-8 are brought into their seats by placing their antennas almost all over the table surface of the dining tables 4-1 to 4-8, and placed on the dining tables 4-1 to 4-8. The wireless tags 1 of all the tableware 2 are detected at once.

  FIG. 3 is a block diagram showing the main configuration of the wireless tag reader 3 (3-1 to 3-8) and the wireless tag 1. The wireless tag reader 3 includes an interface unit 31 with a host device, a nonvolatile memory unit 32, a control unit 33, a modulation unit 34 that modulates data provided from the control unit 33 into a modulation signal suitable for wireless communication, A transmission amplifier 35 that amplifies the modulated signal and emits it as an inquiry radio wave from the antenna 36, a reception amplifier 37 that amplifies the radio signal received by the antenna 36, and demodulates data from the amplified radio signal and gives it to the control unit 33. And a demodulator 38. The memory unit 32 stores in advance tag reader IDs as identification information set differently for each wireless tag reader 3. The control unit 33 is configured to periodically send predetermined data to the modulation unit 34 when activation is commanded from the host device via the interface unit 31, and when the data demodulated by the demodulation unit 38 is taken in, A function of sending data together with the tag reader ID to the host device via the interface unit 31.

  The wireless tag 1 includes a power generation unit 12 that supplies power to each unit by rectifying and stabilizing the modulated radio wave received by the antenna 11, and a demodulator 13 that demodulates the modulated radio wave and sends it to the control unit 15. Modulation unit 14 that modulates data sent from control unit 15 and sends it to antenna 11, writes data demodulated by demodulation unit 13 into memory unit 16, and reads and modulates transmission data from memory unit 16 It comprises a control unit 15 for sending to the unit 14 and a nonvolatile memory unit 16. In the memory unit 16, a wireless ID area 16a for storing RFID (wireless ID), which is unique identification information assigned and set by the manufacturer at the manufacturing stage of the wireless tag 1, and the user writes arbitrary data. A user area 16b is formed. And in the wireless tag 1 attached | subjected to each tableware 2, the common information which shows that it is a wireless tag for tableware is previously stored in the user area 16b.

  FIG. 4 is an overall configuration diagram of a passenger seat / order management system constructed in the restaurant according to the present embodiment. The plurality of handy terminals 51 are carried by customer clerk called waiters and waitresses, and are used for inputting order data of food received from customers. Each handy terminal 51 is provided with a keyboard for inputting order data, a display for displaying keyed data, and the like. Each handy terminal 51 has a built-in wireless circuit so that data can be transmitted / received wirelessly to / from the wireless unit 52 attached to the ceiling of the passenger seat. The radio unit 52 is provided for each guest room, for example, and is connected to the controller 53 via a dedicated line. Incidentally, it is also possible to provide the wireless unit 52 in the portion of the passage connecting each guest room, so that the number of the wireless units 52 is smaller than the number of guest rooms.

  The controller 53 is composed of a computer device such as a personal computer or a workstation, and centrally manages the order of various menu products provided to the customer by the restaurant and the accounting and the state of each seat. The controller 53 receives orders from a POS (Point Of Sales) terminal 55 that processes customer accounting, a slip issuing machine 57 that issues an order slip 56, and a kitchen cook in charge via a LAN (Local Area Network) 54. A kitchen terminal 58 and the like for printing, displaying, and sounding the instructions for cooking the menu item are connected.

  In addition to the menu file 59 in which menu data such as the item of the menu product, unit price, etc. is set in advance in the controller 53 corresponding to the unique product number set for each of the various menu products that can be provided at the restaurant. In particular, as shown in FIG. 5, a seat management file 60 that variably stores the state, the number of persons, the customer ID, and the order data corresponding to the seat numbers 1 to 8 assigned in order to the guest rooms of the seat. Is provided.

  In this item of the seat management file 60, “state” is information for identifying the state of the guest room to which the corresponding seat number is assigned. In this embodiment, the information “0” indicates the vacant seat state. “1” indicates an order waiting state, information “2” indicates a waiting state for distribution, information “3” indicates a distribution completion state, and information “4” indicates an accounting state. “Number of people” is the number of customers who have entered the corresponding guest room. “Customer ID” is an ID of an employee (person in charge of customer service) who serves a customer who enters the corresponding guest room. “Order data” includes the item number, the number of orders, the state (not yet cooked / during cooking / cooking completed, etc.) of the menu product ordered by the customer who entered the corresponding guest room.

  Based on the state information stored in the above-mentioned seat management file 60, the controller 53 determines whether each guest room is vacant, in use (number of people displayed), or being cleaned up as shown in FIG. Is connected to a display 61 for displaying the guest room state in real time.

  The controller 53 is connected to the wireless tag readers 3-1 to 3-8 provided in the guest rooms “1” to “8” via the interface unit 31. That is, the controller 53 functions as a host device of each of the wireless tag readers 3-1 to 3-8.

  FIG. 7 is a block diagram showing a main configuration of the controller 53. The controller 53 includes a CPU (Central Processing Unit) 71 that executes various arithmetic processes, a ROM (Read Only Memory) 72 that stores fixed data such as programs in advance, and various memory areas that store variable data. In order to store a RAM (Random Access Memory) 73 to be formed, a clock unit 74 as a clock means for measuring the current date and time, a LAN interface 75 connected to the LAN 54, the menu file 59, the audience management file 60, and the like. HDD (Hard Disk Drive) device 76, a display interface 77 for outputting screen data to the display 61, an I / O port 78 for inputting signals from the wireless tag readers 3-1 to 3-8, the wireless The radio unit interface 79 is connected to the unit 52. The CPU 71, ROM 72, RAM 73, clock unit 74, LAN interface 75, HDD device 76, display unit interface 77, I / O port 78, and radio unit interface 79 are connected by a bus line 80 such as an address bus or a data bus. Has been. Incidentally, the HDD device 76 may be built in the controller 53 or may be externally attached.

  In the RAM 73, as shown in FIG. 8 in particular, the wireless tag readers 3-1 to 3- in each of the guest rooms “1” to “8” corresponding to the reader numbers that are serial numbers from “1” are provided. 8 tag reader IDs, seat numbers of guest rooms “1” to “8” equipped with the wireless tag readers 3-1 to 3-8, and wireless tag readers 3-1 to 3-8 are the wireless tags for dishes 1. A tag reader table 81 that stores a tag detection presence / absence flag for distinguishing whether it is in a detected state or a non-detected state; a reader number counter 82 that counts the reader number A of the tag reader table 81; A state command buffer 83 for storing a command to be notified is formed. The command includes a command type indicating the state of the guest room, a seat number for identifying the guest room, and a processed flag that is set to “1” when the command has been processed. As the command type, an entry command for notifying that the customer has entered the room, an order command for notifying that the customer has received an order, and a notification for notifying that the distribution of the menu item ordered by the customer has been completed. There are a completion command, an accounting command for notifying that the customer's accounting is processed, and a cleanup completion command for notifying that the clearance of the seat where the customer stands is completed.

  Therefore, the CPU 71 of the controller 53 controls the display of the cabin state on the display 61 in accordance with the procedure shown in the flowchart of FIG. That is, when the CPU 71 starts this cabin state display control routine in response to a power-on or reset operation of the controller 53, first, all state information corresponding to each seat number in the seat management file 60 is stored as ST (step) 1. “0” (vacant state). Then, as ST2, a guest room state display screen is created based on the state information of the passenger seat management file 60 and displayed on the display 61. That is, a guest room state display screen is displayed indicating that all the guest rooms “1” to “8” are vacant.

  Next, the CPU 71 searches for an unprocessed status command in the status command buffer 83 as ST3. If an unprocessed status command is not stored, it waits until it is stored. If an unprocessed status command is stored, processing corresponding to the type of the command is executed.

  If an unprocessed entry command is stored as ST4, the seat management file 60 is searched with the seat number in the command, and it is determined whether or not the status information corresponding to the seat number is “0”. . If the status information is “0”, the status information is updated to “1” (order waiting state). If the status information is other than “0”, the status information is not updated.

  Incidentally, the room entry command is generated during the room entry management process of the CPU 71 and stored in the state command buffer 83. That is, when a store clerk carrying the handy terminal 51 guides a visitor to a vacant guest room and operates the handy terminal 51 to input and transmit the customer seat number, the number of customers, etc. together with his own ID (customer ID). These pieces of information are taken into the controller 53 via the wireless unit 52. As a result, the CPU 71 executes a room entry management process, and stores the number of persons and the customer ID in the area corresponding to the corresponding seat number in the seat management file 60. Further, an entry command is generated from the command type “entry”, the inputted seat number, and the processed flag reset to “0”, and stored in the state command buffer 83.

  When an unprocessed order command is stored as ST5, the seat management file 60 is searched with the seat number in the command, and it is determined whether or not the status information corresponding to the seat number is “1”. . If the status information is “1”, the status information is updated to “2” (waiting for serving). If the status information is other than “1”, the status information is not updated.

  Incidentally, the order command is generated in the order receiving process of the CPU 71 and stored in the state command buffer 83. That is, when the store clerk operates the handy terminal 51 to input and transmit the order data received from the passenger at the passenger seat along with the passenger seat number, the information is taken into the controller 53 via the wireless unit 52. As a result, the CPU 71 executes order acceptance processing and stores the order data in the area corresponding to the corresponding seat number in the seat management file 60. In addition, cooking instruction data for the ordered menu product is created and transmitted to the kitchen terminal 58. Further, an order command is generated from the command type “order”, the inputted seat number, and the processed flag reset to “0”, and stored in the state command buffer 83.

  If an unprocessed serving completion command is stored as ST6, the seat management file 60 is searched with the seat number in the command to determine whether or not the status information corresponding to the seat number is “2”. To do. If the status information is “2”, the status information is updated to “3” (layout completion status). If the status information is other than “2”, the status information is not updated.

  Incidentally, the serving completion command is generated during the cooking completion process of the CPU 71 and stored in the state command buffer 83. That is, when a clerk in the kitchen finishes cooking the menu product and operates the operation unit of the kitchen terminal 58 to input the product number of the menu product and the seat number of the ordered customer, these pieces of information pass through the LAN 54. Then, it is taken into the controller 53. Thereby, CPU71 performs a cooking completion process, and makes the state of the menu goods which completed cooking from the order data stored corresponding to the corresponding seat number of the seat management file 60 to cooking completion. In addition, a signal notifying that there is a cooking-completed menu item is transmitted wirelessly to the handy terminal 51 possessed by the store clerk with the customer ID stored corresponding to the corresponding seat number. Further, it is determined whether or not all the states of the order data stored corresponding to the corresponding seat number are cooking completed. If all the states are cooking completed, a distribution completion command is generated from the command type “distribution complete”, the corresponding seat number, and the processed flag reset to “0”. Store in the command buffer 83.

  If an unprocessed accounting command is stored as ST7, the seat management file 60 is searched with the seat number in the command, and it is determined whether or not the status information corresponding to the seat number is “3”. . If the status information is “3”, the status information is updated to “4” (accounting status). If the status information is other than “3”, the status information is not updated.

  Incidentally, the accounting command is generated during the accounting reception process of the CPU 71 and stored in the status command buffer 83. That is, when the store clerk operates the POS terminal 55 and inputs the passenger seat number of the guest room used by the customer who applied for accounting, this information is taken into the controller 53 via the LAN 54. As a result, the CPU 71 executes transaction acceptance processing, creates transaction data from the order data stored in correspondence with the corresponding seat number in the customer seat management file 60, and transmits the transaction data to the POS terminal 55 via the LAN. Further, an accounting command is generated from the command type “accounting”, the corresponding seat number, and the processed flag reset to “0”, and stored in the status command buffer 83.

  If an unprocessed clean-up completion command is stored as ST8, the seat management file 60 is searched with the seat number in the command to determine whether the status information corresponding to the seat number is “4”. To do. If the status information is “4”, the status information is updated to “0” (vacant seat status). Further, the number of persons, the customer ID, and the order data corresponding to the passenger seat number are cleared. When the status information is other than “4”, the status information is not updated and each information is not cleared.

  Incidentally, the cleanup completion command is generated during the wireless tag reader monitoring process of the CPU 71 described later, and stored in the status command buffer 83.

  When an unprocessed command is processed in this way, the CPU 71 sets the processed flag of the processed command to “1” in ST9. Thereafter, the process returns to ST2, and the guest room state display screen is recreated based on the state information of the audience management file 60 and displayed on the display 61. Thereafter, every time an unprocessed status command is stored in the status command buffer 83, the CPU 71 repeatedly executes the processes of ST4 to ST9 and ST2.

  FIG. 10 is a flowchart showing a main part of the wireless tag reader monitoring process in the present embodiment. The CPU 71 starts this wireless tag reader monitoring process every time it receives an interrupt signal generated at a constant cycle of about several seconds. First, as ST11, the reader number counter 82 is reset to “0”. Next, as ST12, the reader number counter 82 is incremented by "1". If it is confirmed in ST13 that the count value A does not exceed the total number N of wireless tag readers 3-1 to 3-8 (N = 8 in this embodiment), the tag reader table 81 is referred to as ST14. Then, the reader ID of the reader number that matches the count value A is acquired, and an activation command is output to the wireless tag reader 8-x (1 ≦ x ≦ 8) having this reader ID.

  Thus, an inquiry radio wave is transmitted from the antenna 36 of the wireless tag reader 8-x that has received the activation command. At this time, if there is a wireless tag within the radio wave reachable distance, information (RFID, user area information) in the memory unit 16 is wirelessly transmitted from the wireless tag. The memory information of the wireless tag is detected by the wireless tag reader 8-x via the antenna 36 and given to the controller 53.

  Therefore, the CPU 71 determines whether information on the wireless tag is detected by the wireless tag reader 8-x in ST15 (reader output monitoring means). If it is detected, the wireless tag 1 for tableware attached to the various tableware 2 is confirmed from the user area information as ST16. If it is confirmed that it is the tableware wireless tag 1, the tag detection presence / absence flag corresponding to the reader number A of the tag reader table 81 is examined as ST17. Here, when the tag detection presence / absence flag indicates a non-detection state, the detection state is set. Thereafter, the process returns to ST12 and the reader number counter 82 is counted up by “1” to determine whether or not the total number N of tag readers has been exceeded.

  If the information of the wireless tag is not detected by the wireless tag reader 8-x in ST15, the tag detection presence / absence flag corresponding to the reader number A of the tag reader table 81 is checked as ST18. Here, when the tag detection presence / absence flag indicates a detection state, a seat number corresponding to the reader number A of the tag reader table 81 is acquired (passenger seat determination means). Then, a cleanup completion command is generated from the command type “cleanup completion”, the acquired seat number, and the processed flag reset to “0”, and stored in the status command buffer 83 (completion detection means). In addition, the tag detection presence / absence flag is set to a non-detection state. When the tag detection presence / absence flag indicates a non-detection state in ST18, the above process is not executed. Thereafter, the process returns to ST12 and the reader number counter 82 is counted up by “1” to determine whether or not the total number N of tag readers has been exceeded.

  Thereafter, the CPU 71 sequentially repeats the processes after ST14 until the reader number counter 82 exceeds the total number N of tag readers. That is, the wireless tag readers 3-1 to 3-8 are operated in order from the smallest reader number. When the wireless tag reader 3-x in the non-detection state detects the tableware wireless tag 1, the tag detection presence / absence flag of the wireless tag reader 3-x is set to the detection state. On the contrary, when the wireless tag reader 3-x in the detection state does not detect the tableware wireless tag 1, a clean-up completion command having the seat number of the guest room equipped with the wireless tag reader 3-x is issued. It is generated and stored in the state command buffer 83, and the tag detection presence / absence flag of the wireless tag reader 3-x is set to a non-detection state.

  Thus, if the reader number counter 82 exceeds the total number N of tag readers, the CPU 71 ends the wireless tag reader monitoring process.

  In the present embodiment configured as above, the guest room with the seat number “8” is now vacant, and the store clerk guides the guest to the guest room, and the seat number “8”, the customer ID, and the number of people are displayed. It is assumed that data is input to the handy terminal 51 and transmitted. Then, the status flag corresponding to the seat number 8 in the seat management file 60 is updated to “1”. As a result, the guest room state display screen of the display 61 is updated to a state display (number of persons display) in which the guest room with the passenger seat number “8” is in use.

  Next, it is assumed that the order data received from the customer by the store clerk is input to the handy terminal 51 and transmitted. Then, a cooking instruction for the ordered menu item is given at the kitchen terminal 58. Further, the status flag corresponding to the seat number 8 in the seat management file 60 is updated to “2”.

  Next, it is assumed that cooking of all the menu items ordered by the customer is completed and the completion of cooking is instructed from the kitchen terminal 58. Then, the status flag corresponding to the seat number “8” in the seat management file 60 is updated to “3”.

  In addition, if even one dish such as a dish with a prepared menu item or a cup containing drinks is placed on the dining table 4-8 in this guest room, the wireless tag reader 3-8 provided in this guest room Becomes a detection state of the wireless tag 1.

  Thereafter, when this customer offers accounting, and the guest room number “8” is input at the POS terminal 55, the data of the menu item ordered by the customer is called from the controller 53 to the POS terminal 55, and the accounting is processed. The In addition, the status flag corresponding to the seat number “8” in the seat management file 60 is updated to “4”.

  On the other hand, when the customer leaves the seat, the store clerk performs a cleanup operation of the cabin. When all the dishes 2 are cleared from the dining table 4-8, the wireless tag reader 3-8 changes from the detection state of the wireless tag 1 to the non-detection state, and a cleanup completion command for the seat number "8" is generated and the state command buffer 83. Then, the status flag corresponding to the seat number “8” in the seat management file 60 is immediately updated to “0” in accordance with this cleanup completion command. As a result, the guest room state display screen of the display 61 is updated to the vacant room display (for example, “vacant seat”) for the guest room with the passenger seat number “8”.

  As described above, in the present embodiment, the wireless tag reader 3-1 to 3-8 provided in the guest room has the wireless tag 1 attached to the tableware 2 placed on the dining table 4-1 to 4-8 in the guest room. The information is detected collectively, the outputs of the wireless tag readers 3-1 to 3-8 are monitored, and the wireless state in which the information of the wireless tag 1 is detected is not detected at all. When the tag readers 3-1 to 3-8 are detected, the guest room equipped with the wireless tag readers 3-1 to 3-8 is determined, and the completion of the clean-up work for the guest room is detected.

  Therefore, since all the dishes 2 placed on the dining tables 4-1 to 4-8 in the guest room have been cleaned up, the completion of the cleaning work in the guest room is automatically detected. No special operation is required. As a result, it is possible to prevent the occupant's seat from being left indefinitely due to forgetting to operate the store clerk, to reliably manage the vacant state of the occupant's seat, and to reduce the burden on the staff who perform the cleaning work.

  In the present embodiment, even if one of the wireless tag readers 3-1 to 3-8 is detected from a state where even one piece of information of the wireless tag 1 is detected, the wireless tag reader 3-1 to 3-8 is detected. Unless the state of the guest room provided with the tag readers 3-1 to 3-8 is not in the accounting state, the process of the tidying-up completion command is not executed. Therefore, even if a customer who uses a seat takes down all the tableware 2 temporarily placed on the table 4-1 to 4-8 from the table 4-1 to 4-8, A clean-up completion command is generated, that is, the completion of the clean-up work is not detected, and no vacant seat is displayed by mistake.

  Although the present embodiment is applied to a restaurant having a passenger seat divided into private rooms, it can be similarly applied to a restaurant where the guest seats are not divided into private rooms.

(Second Embodiment)
Next, a second embodiment will be described with reference to FIGS. In the second embodiment, the present invention is used to manage the vacancy of each seat in a restaurant having guest seats (guest rooms 1 to 8) divided into eight private rooms, as in the first embodiment. In this case, since the overall configuration of the passenger seat / order management system is common, the same parts are denoted by the same reference numerals and description thereof is omitted.

  This embodiment differs from the first embodiment in the following three points. The first point is the position of the wireless tag readers 3-1 to 3-8 provided in the guest rooms “1” to “8”, respectively. That is, in this embodiment, as shown in FIG. 11, wireless tag readers 3-1 to 3-8 are provided in the vicinity of the entrances and exits of the guest rooms “1” to “8” and attached to the tableware 2 passing through the entrances and exits. The memory information (RFID, user area information) of the wireless tag 1 is detected.

  The second difference between the present embodiment and the first embodiment is a memory area formed in the RAM 73 of the controller 53. That is, in this embodiment, as shown in FIG. 12, in addition to the status command buffer 83 used in the first embodiment, a tag ID memory 84 is formed. The tag ID memory 84 stores the RFID of the wireless tag 1 detected by the wireless tag readers 3-1 to 3-8 provided in the guest rooms corresponding to the passenger seat numbers of the guest rooms “1” to “8”. In this way, it functions as a tag information storage unit.

  A third point that this embodiment is different from the first embodiment is tag reader monitoring processing executed by the CPU 71 of the controller 53. The main part is shown in the flowchart of FIG. That is, the CPU 71 constantly monitors the outputs of the respective wireless tag readers 3-1 to 3-8, and reads the memory information (RFID, user area information) of the tableware wireless tag 1 as ST21 and ST22. When .about.3-8 is detected, the tag reader table 81 is searched with the tag reader IDs of the wireless tag readers 3-1 to 3-8 as ST23, and the seat number set corresponding to the tag reader ID is acquired. In step ST24, the tag ID memory 84 is searched with the RFID extracted from the acquired seat number and the memory information of the tableware wireless tag 1. As a result, when data matching the RFID is not stored in the tag ID area corresponding to the seat number in the tag ID memory 84 (NO in ST25), the tableware 2 to which the RFID tag 1 of the RFID is attached. Has been carried into the cabin, the RFID is stored in the tag ID area corresponding to the passenger seat number in ST26 (tag information processing means). Then, it returns to the output monitoring state of each of the wireless tag readers 3-1 to 3-8.

  On the other hand, if data matching the RFID is stored in the tag ID area corresponding to the seat number in the tag ID memory 84 (YES in ST25), the tableware to which the RFID tag 1 of the RFID is attached. Since 2 is carried out of the passenger room, data matching the RFID is deleted from the tag ID area corresponding to the passenger seat number (tag information processing means) in ST27. In ST28, it is determined whether or not RFID data remains in the tag ID area corresponding to the seat number. Here, when the RFID data remains, since the tableware 2 carried into the cabin still remains, the state returns to the output monitoring state of each of the wireless tag readers 3-1 to 3-8.

  On the other hand, if there is no RFID data left, all the tableware 2 brought into the guest room has been carried out, so that the command type “cleaning up”, the acquired seat number, and “0” are reset as ST29. A cleanup completion command is generated from the processed flag and stored in the status command buffer 83 (completion detecting means). Thereafter, the wireless tag readers 3-1 to 3-8 return to the output monitoring state.

  As described above, in the present embodiment, the information of the wireless tag 1 attached to the tableware 2 passing through the doorway of the guest room is detected by the wireless tag readers 3-1 to 3-8 provided in the vicinity of the doorway of the guest room. In addition, a tag ID memory 84 having a tag ID area for storing the RFID of the wireless tag 1 for each guest room is provided. Each time the information of the wireless tag 1 is detected by the wireless tag readers 3-1 to 3-8, the RFID of the wireless tag 1 is placed in the tag ID area for the passenger seat of the tag ID memory 84 where the wireless tag reader is provided. It is checked whether it is stored. If it is not stored, it is stored, and if it is stored, it is deleted. If there is a tag ID area from which all RFIDs have been deleted, the guest room is determined from the guest room number for that area, and the completion of the clean-up work for that guest room is detected.

  Accordingly, since all the tableware 2 carried into the guest room is taken out, the completion of the clean-up work of the guest room is automatically detected, so that the same effect as that of the first embodiment can be obtained.

  Also, in this embodiment, the cleanup completion command process is not executed unless the guest room where all the dishes 2 are taken out is in the accounting state, so that even if all the dishes 2 are taken out before the checkout, the vacant rooms are displayed. There is no.

(Third embodiment)
Next, a third embodiment will be described with reference to FIGS. In the third embodiment, the present invention is used to manage the vacancy of each seat in a restaurant having guest seats (guest rooms 1 to 8) divided into eight private rooms, as in the first embodiment. In this case, since the overall configuration of the passenger seat / order management system is common, the same parts are denoted by the same reference numerals and description thereof is omitted.

  This embodiment differs from the first embodiment in the following two points. The first point is an article to which the wireless tag 1 is attached. That is, in the first embodiment, the wireless tag 1 is attached to an article, for example, tableware 2, which is brought into the passenger seat and cleaned up after use by the customer. In the present embodiment, as shown in FIG. The wireless tag 1 ′ is attached to the figurine 91 or a menu 92 as shown in FIG. Here, the figurine 91 and the menu 92 are placed on the dining table 4-1 to 4-8 of the guest room for the next customer by the store clerk who has finished the cleanup of the guest room, and the next guest enters the room. Or an article removed from the table 4-1 to 4-8 when an order is placed (referred to as a tabletop article). In the user area 16b of the wireless tag 1 'attached to the tabletop items 91 and 92, common information indicating that it is a tabletop item wireless tag is stored in advance.

  The second point that this embodiment is different from the first embodiment is a tag reader monitoring process executed by the CPU 71 of the controller 53. The main part is shown in the flowchart of FIG. That is, the CPU 71 starts this wireless tag reader monitoring process every time it receives an interrupt signal generated at a constant cycle of about several seconds. First, as ST31, the reader number counter 82 is reset to “0”. Next, as ST32, the reader number counter 82 is incremented by "1". If it is confirmed in ST33 that the count value A does not exceed the total number N of the wireless tag readers 3-1 to 3-8, the tag number corresponding to the count value A is referred to by referring to the tag reader table 81 in ST34. And an activation command is output to the wireless tag reader 8-x (1 ≦ x ≦ 8) having this reader ID.

  Next, the CPU 71 determines whether information on the wireless tag is detected by the wireless tag reader 8-x in ST35 (reader output monitoring means). If it is detected, it is confirmed in ST36 that the wireless tag 1 'is a desktop article attached to the desktop article 91 or 92 from the user area information. If it is confirmed that the wireless tag 1 ′ is for a desktop item, a tag detection presence / absence flag corresponding to the reader number A of the tag reader table 81 is checked as ST37. Here, when the tag detection presence / absence flag indicates a non-detection state, a seat number corresponding to the reader number A of the tag reader table 81 is acquired (passenger seat determination means). Then, a cleanup completion command is generated from the command type “cleanup completion”, the acquired seat number, and the processed flag reset to “0”, and stored in the status command buffer 83 (completion detection means). The tag detection presence / absence flag is set to a detection state. When the tag detection presence / absence flag indicates a detection state in ST37, the above process is not executed. Thereafter, the process returns to ST32, and the reader number counter 82 is counted up by “1” to determine whether or not the total number N of tag readers has been exceeded.

  If the information of the wireless tag is not detected by the wireless tag reader 8-x in ST35, the tag detection presence / absence flag corresponding to the reader number A of the tag reader table 81 is checked in ST38. Here, when the tag detection presence / absence flag indicates a detection state, it is set to a non-detection state, and when it indicates a non-detection state, it is left as it is. Thereafter, the process returns to ST32, and the reader number counter 82 is counted up by “1” to determine whether or not the total number N of tag readers has been exceeded.

  Thereafter, the CPU 71 sequentially repeats the processes after ST34 until the reader number counter 82 exceeds the total number N of tag readers. That is, the wireless tag readers 3-1 to 3-8 are operated in order from the smallest reader number. If the wireless tag reader 3-x in the non-detection state detects the wireless tag 1 'for desktop items, it generates a cleanup completion command having the seat number of the guest room equipped with the wireless tag reader 3-x. Then, it is stored in the state command buffer 83, and the tag detection presence / absence flag of the wireless tag reader 3-x is set to the detection state. On the contrary, when the wireless tag reader 3-x in the detection state does not detect the tableware wireless tag 1, the tag detection presence / absence flag of the wireless tag reader 3-x is set to the non-detection state.

  Thus, if the reader number counter 82 exceeds the total number N of tag readers, the CPU 71 ends the wireless tag reader monitoring process.

  As described above, in the present embodiment, the wireless tag readers 3-1 to 3-8 provided in the guest rooms wirelessly attach to the figurines 91 and the menus 92 placed on the dining tables 4-1 to 4-8 in the guest rooms. When the information of the tag 1 'is detected, the outputs of the wireless tag readers 3-1 to 3-8 are monitored, and the information of the wireless tag 1' is detected, the wireless tag readers 3-1 to 3-8 are detected. A guest room equipped with the wireless tag readers 3-1 to 3-8 is determined, and the completion of the clean-up work of the guest room is detected.

  Therefore, when the store clerk who has finished the cleanup of the guest room places the figurine 91 and the menu 92 on the dining table 4-1 to 4-8 for the next customer, the completion of the cleanup work of the guest room is automatically detected. Therefore, the same effects as those of the first embodiment can be obtained.

  Also in the present embodiment, the cleanup completion command process is not executed unless the guest room in which the figurine 91 and the menu 92 are placed on the dining table 4-1 to 4-8 is in an accounting state. Even if the menu 92 is placed on the dining table 4-1 to 4-8, no vacancy is displayed.

The schematic diagram which shows the passenger seat structure of the restaurant in the 1st Embodiment of this invention. The figure which shows an example of the tableware used in the 1st and 2nd embodiment of this invention. The block diagram which shows the principal part structure of a wireless tag reader and a wireless tag. The whole block diagram of the vacant seat and order management system in the 1st-3rd embodiment of this invention. The schematic diagram which shows the data structure of the passenger seat management file shown in FIG. The figure which shows an example of the passenger seat state display screen displayed on the display shown in FIG. The block diagram which shows the principal part structure of the controller shown in FIG. The schematic diagram which shows the main memory areas formed in RAM of a controller in the 1st and 3rd embodiment of this invention. The flowchart which shows the principal part of the passenger seat state display control routine which CPU of a controller performs in the 1st-3rd embodiment of this invention. The flowchart which shows the principal part of the tag reader monitoring process routine which CPU of a controller performs in the 1st Embodiment of this invention. The schematic diagram which shows the passenger seat structure of the restaurant in the 2nd Embodiment of this invention. The schematic diagram which shows the main memory areas formed in RAM of a controller in the 2nd Embodiment of this invention. The flowchart which shows the principal part of the tag reader monitoring process routine which CPU of a controller performs in the 2nd Embodiment of this invention. The figure which shows an example of the desktop article | item used in the 3rd Embodiment of this invention. The flowchart which shows the principal part of the tag reader monitoring process routine which CPU of a controller performs in the 3rd Embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1,1 '... Wireless tag, 2 ... Tableware, 3-1 to 3-8 ... Wireless tag reader, 4-1 to 4-8 ... Dining table, 53 ... Controller, 60 ... Passenger seat management file, 61 ... Display for seat status display 81: Tag reader table, 82: Reader number counter, 83: Status command buffer, 84: Tag ID memory.

Claims (5)

In the work completion detection system that detects the completion of the clean-up work for each passenger seat in restaurants, etc.,
Radio tags that are carried to the passenger seats and attached to articles to be cleaned up after use by the customers,
A wireless tag reader that is provided for each of the passenger seats and detects the wireless tag attached to the article carried into the passenger seats;
Reader output monitoring means for monitoring the output of the wireless tag reader provided in each passenger seat and acquiring the wireless tag reader in a non-detection state from a wireless tag detection state;
When the reader output monitoring means obtains a wireless tag reader that has changed from a wireless tag detection state to a non-detection state, a passenger seat determination means that determines a passenger seat provided with the wireless tag reader;
A completion detection means for detecting completion of the cleaning operation of the passenger seat determined by the passenger seat determination means;
An operation completion detection system comprising:   The wireless tag reader is provided on each table of each passenger seat, and collectively detects the wireless tags attached to the articles placed on the table. Work completion detection system. In the work completion detection system that detects the completion of the clean-up work for each passenger seat in restaurants, etc.,
Radio tags that are brought into the passenger seats and attached to articles to be cleaned up after use by the customers, each having unique identification information,
A wireless tag reader that is provided in the vicinity of the entrance and exit of each passenger seat and detects identification information of the wireless tag attached to the article that has passed through the entrance and exit,
A tag information storage unit having an identification information storage area of the wireless tag for each passenger seat;
Each time the identification information of the wireless tag is detected by the wireless tag reader, it is checked whether the identification information is stored in the identification information storage area for the passenger seat provided with the wireless tag reader in the tag information storage unit and stored. Tag information processing means for storing if not, and deleting if stored,
A passenger seat judging means for judging a seat from which all the identification information of the wireless tag stored in the identification information storage area of the tag information storage section has been deleted;
A completion detection means for detecting completion of the cleaning operation of the passenger seat determined by the passenger seat determination means;
An operation completion detection system comprising: In the work completion detection system that detects the completion of the clean-up work for each passenger seat in restaurants, etc.,
A wireless tag attached to an article to be placed in the passenger seat after completion of the cleaning work of the passenger seat and removed during use;
A wireless tag reader that is provided for each passenger seat and detects the wireless tag;
Reader output monitoring means for monitoring the output of each wireless tag reader and acquiring the wireless tag reader that has detected the wireless tag attached to the article;
When acquiring the wireless tag reader that has detected the wireless tag by the reader output monitoring means, a passenger seat determining means for determining a passenger seat provided with the wireless tag reader;
A completion detection means for detecting completion of the cleaning operation of the passenger seat determined by the passenger seat determination means;
An operation completion detection system comprising: An accounting processing means for processing accounting of a customer using the passenger seat,
The completion detection means detects completion of the work for clearing the passenger seat on the condition that the accounting of the customer using the passenger seat determined by the passenger seat determination means is processed by the accounting processing means. Item 5. The work completion detection system according to any one of Items 1 to 4.

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