JP2009162007A - Gate locking/unlocking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a gate locking/unlocking device capable of locking and unlocking a gate by detecting the number of persons located in a control zone even if a person who enters a room does not carry a tag. <P>SOLUTION: This gate locking/unlocking device comprises a locking control means, a characteristic storage means capable of storing voice characteristic data indicating the characteristics of the voices of the persons who enter and exit a room, a voice input means for accepting the voices of the persons who enter and exit the room, a characteristic acquiring means for acquiring the voice characteristic data from the voice signal converted by the voice input means, an entry display means for displaying the entry, an entry control means for storing the voice characteristic data on the persons who enter and exit the room in the characteristic storage means and unlocking an entry/exit gate, and an exit control means for (1) retrieving the voice characteristic data obtained by the characteristic acquiring means when the persons who enters and exit the room exit the room, and when (2) the identical entry voice characteristic data is found, deleting the data from the characteristic storage means and (3) when the entry voice characteristic data is absent, locking the entry/exit gate. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention is an apparatus for performing gate locking / unlocking in a management area where entry / exit management is required. More specifically, the present invention relates to a gate locking / unlocking device that allows a user to grasp the number of people in a management area without carrying a tag or the like and perform gate locking / unlocking.

Areas where machinery and equipment such as factories operate, and management areas such as refrigerated rooms, even if there are people in the area, may cause troubles such as driving of equipment, so there are people in the area. It is necessary to keep track of whether or not Moreover, when using the machinery in the management area, it is preferable to provide a gate at the entrance and exit of the management area and lock the gate so that no one can enter the management area.
However, since it is not easy to accurately determine the number of people in a management area where a large number of unspecified people enter and leave, it is possible to grasp the number of people by carrying management members for counting the number of people entering the room, such as tags. There was an example in which the number of persons was grasped by making a note in the manager's management ledger. However, in the management using the management member, there is a case where the management member is lost or the management member is brought home, thereby causing a mistake in counting the number of people and making the machine apparatus unusable. In addition, the management by book entry sometimes caused a mistake in the number of people due to omission of book entry.

In addition, a counter (see, for example, Patent Document 1) that can grasp the number of people entering a room by counting the number of people using a button operation or a sensor that detects passage has been proposed. There have been problems such as the occurrence of large-scale video analysis.
Furthermore, a personal identification system that performs locking and unlocking by biometric authentication using voice or the like has been proposed (see, for example, Patent Document 2). However, such a personal identification system is intended to lock and unlock only those who are registered in advance, such as a resident of a house. Was not. In addition, since biometric information needs to be registered in advance, there is a problem in that it cannot be correctly recognized if a change in biometric information occurs, such as a voice wrinkled due to a change in physical condition.

JP 2006-099381 A JP 2002-297256 A

  The present invention has been made in view of the above-described situation, and a gate capable of accurately grasping the number of people in a management area and performing gate locking / unlocking even if a resident does not carry a management member such as a tag. An object is to provide a locking / unlocking device.

The present invention is as follows.
1. A gate locking / unlocking device that locks and unlocks the entrance / exit gate, the lock control means for locking / unlocking the entrance / exit gate, and one person representing the voice characteristics of the entrance / exit person passing through the entrance / exit gate , Voice storage means capable of storing one or more voice feature data as room entry voice feature data, voice input means for receiving voice generated by the person entering and leaving the room, and converting the voice into a voice signal; and the voice Feature acquisition means for acquiring voice feature data from the voice signal converted by the input means, room entry display means for performing display when the room voice feature data is stored in the feature storage means, and the entrance At the time of entry of the person leaving the room, the voice feature data of the person entering / leaving obtained by the feature acquisition means is stored in the feature storage means as entry voice characteristic data, and the entry / exit gate is unlocked. An entry control means for instructing the lock control means, and when the entry / exit person leaves the room, (1) the stored contents that are the same as the contents of the voice characteristic data of the entry / exit person obtained by the feature acquisition means. (2) If the matching voice feature data is found by the search, the voice feature data is deleted from the feature storage means, and (3) the feature A gate locking / unlocking device, comprising: an exit control means for instructing the locking control means to lock the entrance / exit gate when there is no entry voice feature data stored in the storage means.
2. The room entry display means displays the number of persons in the room voice feature data stored in the feature storage means as the number of persons entering the room. The gate locking / unlocking device described.
3. The exit control means unlocks the entrance / exit gate when the matching entrance voice feature data is found by the search, and the lock control means is instructed by the entrance control means or the exit control means. 2. The gate opening restriction means for instructing the lock control means to lock the entrance / exit gate after a predetermined time has elapsed since it was detected that the entrance / exit gate was unlocked. The gate locking / unlocking device described.
4). An entry notification means for notifying the entry control means of entry of the entry / exit person, and an exit notification means for notifying the exit control means of leaving of the entry / exit person, the entry control means, The storage and unlocking are performed only when a notification by the entry notification unit is received, and the exit control unit performs the deletion and the locking only when a notification by the exit notification unit is received. The gate locking / unlocking device according to any one of claims 3 to 3.
5. The locking control means stops the operation of the mechanical device managed in the area where the entrance / exit gate is provided while the entry voice feature data is stored in the feature storage means. The gate locking / unlocking device according to any of claims 4 to 4.

According to the gate locking / unlocking apparatus of the present invention, even if the occupant does not carry a management member such as a tag, the voice feature data of the occupant is stored to accurately grasp the number of people in the management area. The gate can be locked and unlocked. For this reason, since it is possible to distinguish a person entering or leaving the gate using the voice of the person entering the room, measurement can be performed without error. In addition, since it is not necessary for the occupant to carry the management member, it is possible to prevent the number of persons from being lost due to the management member being lost or being taken home.
Furthermore, since the voice of the resident is used, it can be locked and unlocked without touching the resident, and even when the hands are blocked or dirty, the entrance / exit gate can be locked and unlocked. It can be carried out. In addition, it is not necessary to register the ID card or biometric information of the room occupant in advance, and the number of persons can be easily grasped even in a place where an unspecified person can enter and exit. Furthermore, since the voice feature data to be used is acquired when a person entering or leaving the room enters the room, it is less affected by the physical condition of the person entering or leaving the room, making it possible to make a discrimination with a narrower allowable range and reducing erroneous recognition. be able to.
Further, since the number of people who can enter the management area is limited only to the storage capacity of the feature storage means, the number of people who can enter the room can be freely selected as compared with the case where a physical key is prepared.

When the room entry display means displays the number of entry voice feature data as the number of people entering the room, people inside and outside the management area can more accurately grasp the number of people entering the room. In addition, when entering the room, it is possible to more surely understand that the voice feature data of the occupant is stored in the feature storage means by changing the number of people entering the room.
When the gate opening restricting means is further provided, it is easier to lock the entrance / exit gate except when entering / leaving, and it is effective when more strict entrance / exit management is performed.
In the case where the entrance notification means and the exit notification means are provided, it is possible to prevent the entrance / exit gate from being erroneously unlocked / unlocked by a sound other than the entrance / exit.
When the lock control means stops the operation of the mechanical device while the entry voice feature data is stored in the feature storage means, it can be prevented from operating the mechanical device in a state where there is a person entering the room, The safety of the occupants is improved and there is no risk of troubles such as driving of the mechanical device.

  The gate locking / unlocking device of the present invention comprises a locking control means, a feature storage means, a voice input means, a feature acquisition means, a room entry display means, a room entry control means, and a room exit control means. To do. In addition, gate opening restriction means, entry notification means, and exit notification means can be provided.

The “entrance / exit gates” are provided at the entrances and exits of areas where machinery and equipment such as factories operate and management areas where the number of people needs to be managed, such as refrigerated rooms (hereinafter referred to as management areas). As long as the gate is restricted, the structure, size and the like can be arbitrarily selected. Further, the number of entrance / exit gates may be one or more. If there are a plurality of voice input means and locking control means, the entrance notification means and the exit notification means lock the entrance / exit gate using the locking control means corresponding to the voice input means to which the voice is input. It can be carried out.
The “locking / unlocking control means” may be locked or unlocked so that the entrance / exit gate cannot be opened, and can be arbitrarily selected regardless of its structure and size. Such a locking / unlocking control means can be exemplified by an electronic lock operating with an electromagnet.

The “voice feature data” is data representing the voice characteristics of the person who enters and leaves the room. This “voice feature” may be a so-called voiceprint or the like as long as it can distinguish between the person entering and leaving the room and the other, and can be used for comparison using any feature. Further, the voice feature data for one person may consist of one type of voice feature data or a plurality of types of voice feature data.
Furthermore, the voice of the person entering or leaving the room used for the voice feature data may be an arbitrary pronunciation or a specific keyword. Voice feature data using specific keywords prevents a person entering or leaving the room from pronounced a word that is different from the keyword, and prevents the person from entering or leaving the room from pronounced the correct keyword. Unless you do so, you can prevent them from leaving the room. Note that this keyword may be a common word for all persons entering or leaving the room, or a different word may be used for each person entering or leaving the room.
The “feature storage means” is means for storing the voice feature data as the entry voice feature data. The feature storage means can store voice feature data corresponding to the number of people that can be accommodated in the management area, and can store voice feature data for one person or more.
Note that the voice feature data is not limited to being stored only in the feature storage means, but can be stored in different long-term storage means. By using such a long-term storage means and storing the voice feature data even after a person entering or leaving the room can inquire about the history of the room entry / exit at a later date.

The “speech input means” is means for converting the sound produced by the person entering or leaving the room using a microphone or the like into a sound signal composed of an electrical signal. In addition, the microphone or the like may be provided at one place, or may be provided at a plurality of places such as an entrance side and an exit side.
The “feature acquisition means” is means for obtaining voice feature data from the voice signal input by the voice input means. As a method for obtaining voice feature data from a voice signal, a known signal processing method can be arbitrarily used.

The above “room entry display means” may be any display means capable of confirming whether or not a person entering or leaving the room is at least staying in the management area. When the entry voice feature data is stored in the feature storage means for one person or more. An indicator lamp that lights up, an indicator lamp that can display the number of people, a monitor, and the like can be exemplified. In particular, when an indicator lamp and a monitor capable of displaying the number of people are used, the number of people entering the room can be displayed more easily by displaying the number of voice characteristics data for entering the room stored in the feature storage means as the number of people entering the room. Accurately grasp.
The “entrance notification means” and the “exit notification means” need only be able to notify the entrance control means and the exit control means of the entry and exit of the entry / exit person, and the means for detecting the entrance and exit of the entry / exit person is not necessary. It doesn't matter. As an example of this means, a switch operated by a person entering or leaving the room, a switch provided on the floor near the entrance / exit gate and operating with the weight of the person entering / exiting, and a non-infrared ray using an infrared ray for detecting the approach of the entrance / exit gate A contact switch etc. can be illustrated. Moreover, the sound switch which operates by the sound volume exceeding a certain value or the keyword pronunciation can be exemplified.
The “mechanical device” can be arbitrarily selected as long as it is a mechanical device managed in the management area. Examples of such mechanical devices include, for example, machine tools such as press machines and lathes, food production devices for food preparation, processing and packaging, chemical production devices for chemical processing, processing and packaging, etc. Can do.
The method of “stopping the operation of the mechanical device” can be arbitrarily selected. For example, the operation stop signal can be transmitted to a signal line for stopping the operation of the mechanical device.

Hereinafter, the gate locking / unlocking device of the present invention will be described in detail with reference to the drawings.
1. Example 1
(1) Configuration of Gate Locking / Unlocking Device As shown in FIG. 1, the gate locking / unlocking device 1 according to the first embodiment includes an entrance / exit of a management area 4 for managing a machine device to which the persons 3a, 3b enter and leave. Is a device that locks and unlocks the electromagnetic key 51 of the entrance / exit gate 5 provided in the door, and includes a lock control means 11, a feature storage means 12, a voice input means 13, a feature acquisition means 14, and a room entry display means 15. And a room entry control means 16 and a room exit control means 17. The feature storage unit 12, the feature acquisition unit 14, the room entry control unit 16, and the room exit control unit 17 are programs that function as the units 12, 14, 16, and 17 on the computer.

The feature storage means 12 is a database capable of storing a predetermined number of voice feature data for one person as room entry voice feature data. Further, the number of room entry voice feature data that can be stored is appropriately set according to the use of the management area 4. Furthermore, the voice feature data for one person is a voiceprint or the like when a person entering or leaving the room pronounces a specific keyword.
The room entry display means 15 is provided with a room entry indicator lamp 151 that is turned on when the feature storage means 12 stores the room entry voice feature data and displays that the room is being entered. Further, the blinking control of the room entry indicator 151 is performed when the number of the stored voice characteristic data in the feature storage unit 12 is increased or decreased by the room entering control unit 16 and the room leaving control unit 17.

The voice input means 13 is a voice input device provided with a microphone 131 placed in the vicinity of the entrance / exit gate 5 and converts words and the like pronounced by the enter / exit persons 3a and 3b into audio signals by an A / D converter or the like. And output to the feature acquisition means 14.
The feature acquisition unit 14 processes the voice signal obtained from the voice input unit 13 to create voice feature data including a voiceprint, and outputs the obtained voice feature data to the entrance control unit 16 and the exit control unit 17. .
The entrance control means 16 transmits the voice feature data obtained from the feature acquisition means 14 to the feature storage means 12 as the entrance voice feature data and stores it. Further, it instructs the locking control means 11 to unlock the entrance / exit gate 5.
The locking control means 11 is an electromagnetic relay that controls the locking and unlocking of the electromagnetic key 51 according to instructions from the room entry control means 16 and the room leaving control means 17. The locking control means 11 is also provided with an electromagnetic relay (not shown) connected to a stop switch of the mechanical device so that the mechanical device is stopped when the electromagnetic key 51 is unlocked. To control the electromagnetic relay connected to the stop switch.

  The exit control means 17 searches the feature storage means 12 for the entry voice feature data that matches the contents of the voice feature data of the person entering and leaving the room obtained by the feature acquisition means 14, and (2) matches by the search. If there is entry voice feature data to be stored, the entry voice feature data is deleted from the feature storage means 12; and (3) if there is no entry voice feature data stored in the feature storage means 12, the lock control means 11 An instruction is given to lock the entrance / exit gate 5.

(2) Operation when the gate locking / unlocking device enters the room The procedure when the room entrant 3a enters the management area 4 using the gate locking / unlocking device 1 having the above configuration will be described with reference to FIG.
[1] Keyword entry of entry / exit person The entry / exit person 3a who desires entry enters the microphone 131 of the voice input means 13 to pronounce a keyword used when leaving the room. The voice input means 13 converts voice including the keyword input to the microphone 131 into a voice signal and outputs it to the feature acquisition means 14 (step 101).
[2] Acquisition of Voice Feature Data The feature acquisition unit 14 performs signal processing on the voice signal obtained from the voice input unit 13 and acquires voice feature data representing the voice characteristics of the person entering and leaving the room 3a (step 102).
[3] Registration of Voice Feature Data The room entry control means 16 transmits the voice feature data obtained from the feature acquisition means 14 to the feature storage means 12 as room entry voice feature data and stores it (step 103).
When the same entry voice feature data is stored in the feature storage unit 12, it can be considered that the corresponding person 3a has already entered the room, so that new entry voice feature data is not stored.
[4] Unlocking the entrance / exit gate The lock control means 11 is instructed to unlock by the entrance control means 16 and unlocks the entrance / exit gate. As a result, the person entering / leaving can enter the room through the entrance / exit gate (step 104). Furthermore, the locking control means 11 controls the electromagnetic relay connected to the stop switch so that the mechanical device is in a stopped state.
[5] Display of entry indicator lamp The feature storage unit 12 notifies the entry display unit 15 of the number of voice feature data currently stored, that is, information on the number of people entering the room. The room entry display means 15 turns on the room entry indicator lamp 151 when the number information of the room entry voice feature data is 1 or more (step 105).

(3) Operation at the time of leaving the gate locking / unlocking apparatus The procedure when the room entry / exiting person 3b in the management area leaves the management area using the gate locking / unlocking apparatus 1 having the above configuration will be described with reference to FIG. .
[1] Keyword entry of entry / exit person The entry / exit person 3b who desires to leave the room pronounces a keyword used when leaving the room toward the microphone 131 of the voice input means 13. The voice input unit 13 converts the voice including the keyword input to the microphone 131 into a voice signal and outputs the voice signal to the feature acquisition unit 14 (step 111).
[2] Acquisition of Feature Data The feature acquisition unit 14 analyzes the voice signal obtained from the voice input unit 13 and obtains pronunciation data representing the voice characteristics of the person entering and leaving the room 3b (step 112).

[3] Retrieval / deletion of room entry voice feature data The room exit control unit 17 searches the feature storage unit 12 for room entry voice feature data that matches the content of the person's voice feature data obtained by the feature acquisition unit 14. (Step 113). If no entry voice feature data is found, [1] keyword entry for the person entering or leaving the room is performed again to wait for acquisition of new voice feature data (step 114). Also, when the keyword issued by the person entering or leaving the room is different from the keyword at the time of entering the room, it waits for acquisition of new voice feature data.
Further, if there is corresponding entry voice feature data, the entry voice feature data is deleted from the feature storage unit 12 (step 115).
[4] Locking the entrance / exit gate Further, the exit control means 17 checks the number of entrance voice feature data stored in the feature storage means 12, and if there is no remaining entrance voice feature data (step 116), lock control is performed. The means 11 is instructed to lock the entrance / exit gate 5 (step 117). Moreover, the locking control means 11 controls the electromagnetic relay connected to the stop switch so that the stop switch is turned off.
[5] Display of entry indicator lamp The feature storage unit 12 notifies the entry display unit 15 of the number of voice feature data currently stored, that is, information on the number of people entering the room. Further, the room entry display means 15 turns off the room entry indicator lamp 151 when the number information of the room entry voice feature data is 0 (step 118).

(4) Operation of Gate Locking / Unlocking Device Since the gate locking / unlocking device 1 uses voice recognition, even if the occupant 3a, 3b does not carry a management member such as a tag, the voice characteristic data of the occupant is locked. As a result, it is possible to accurately grasp the number of people in the management area and to lock and unlock the gate. For this reason, since the person who passes the gate can be distinguished by the voice of the room occupant, the measurement can be performed without error.
Further, only one microphone 131 accepts a keyword when entering and leaving the room, but only new entry voice feature data is stored in the feature storage means 12 when entering the room, and stored room voice feature data stored when leaving the room. Since there is no duplication of deleting if there is, there is no error in locking / unlocking the entrance / exit gate accompanying the entrance / exit.
Furthermore, since the room entry indicator 151 of the room entry display means 15 is provided, it is possible to accurately grasp whether or not the room is entering the management area.
In addition, when unlocked, the locking control means 11 controls the electromagnetic relay connected to the stop switch so that the mechanical device is in a stopped state, so that the safety of the occupant is increased, the mechanical device is driven, etc. There is no risk of trouble.

2. Example 2
As shown in FIG. 4, the gate locking / unlocking apparatus 1a of the second embodiment locks / unlocks the electromagnetic key 51 of the entrance / exit gate 5 provided at the entrance / exit of the management area 4 where the entrance / exit persons 3a, 3b enter / exit. Locking control means 11, feature storage means 12, voice input means 13, feature acquisition means 14, entry display means 15, entry control means 16, exit control means 17, and gate opening. Restricting means 18, entry notification means 19, and exit notification means 20 are provided. The feature storage unit 12, the feature acquisition unit 14, the entrance control unit 16, the exit control unit 17, and the gate opening restriction unit 18 are programs that function as the units 12, 14, 16, 17, and 18 on the computer.

The feature storage unit 12 is a database that can store a predetermined number of voice feature data for one person representing a voiceprint and the like as entrance voice feature data. In addition, storable entrance voice feature data is appropriately set according to the use of the management area 4.
The room entry display means 15 includes a number indicator lamp 152 that lights up when the feature storage means 12 stores room entry voice feature data and displays the number of people entering and leaving the room as numbers. The blinking control of the number-of-persons indicator lamp 152 is performed when the number of entry voice feature data stored in the feature storage unit 12 is increased or decreased by the room entry control unit 16 and the room exit control unit 17.

The voice input means 13 is a voice input device provided with a microphone 131 placed in the vicinity of the entrance / exit gate 5 and converts words and the like pronounced by the enter / exit persons 3a and 3b into audio signals by an A / D converter or the like. And output to the feature acquisition means 14.
The feature acquisition unit 14 processes the voice signal obtained from the voice input unit 13 to create voice feature data including a voiceprint, and outputs the obtained voice feature data to the entrance control unit 16 and the exit control unit 17. .
The entrance control means 16 transmits the voice feature data obtained from the feature acquisition means 14 to the feature storage means 12 as entrance voice feature data only when the entrance notification means 19 detects a person entering or leaving the room. , Remember. Further, it instructs the locking control means 11 to unlock the entrance / exit gate 5.
The locking control means 11 is an electromagnetic relay that controls the locking and unlocking of the electromagnetic key 51 according to instructions from the room entry control means 16 and the room leaving control means 17. Further, the state of the electromagnetic relay is transmitted to the gate opening restriction means 18. Furthermore, the locking control means 11 is also provided with an electromagnetic relay (not shown) connected to a stop switch of the mechanical device so that when the electromagnetic key 51 is unlocked, the mechanical device is stopped. To control the electromagnetic relay connected to the stop switch.

  The exit control means 17 matches the contents of the voice feature data of the entrance / exit persons obtained by the feature acquisition means 14 when (2) the exit notification means 20 detects the entering / exiting person to leave. The stored room entry voice feature data, which is the content, is searched. (3) If there is matching room entry voice feature data as a result of the search, the room entry voice feature data is deleted from the feature storage means 12, and (4) feature storage means. When there is no room entry voice feature data stored in 12, the lock control means 11 is instructed to unlock the entry / exit gate 5.

The gate opening restriction means 18 unlocks when the electromagnetic relay state of the lock control means 11 is unlocked, that is, the lock control means 11 unlocks in accordance with instructions from the entrance control means 16 and the exit control means 17. When a predetermined time elapses after unlocking, the lock control means 11 is instructed to unlock the entrance / exit gate 5.
The entrance notification means 19 and the exit notification means 20 are optical switches that detect entering / leaving persons approaching the entrance / exit gate 5. The entry notification means 19 detects a person entering or leaving the management area outside the entry / exit gate 5, that is, a person entering or leaving the room, and notifies the entry control means 16. Further, the exit notification means 20 detects an approaching person inside the management area of the entrance / exit gate 5, that is, a person entering or leaving the room, and notifies the exit control means 17.

(2) Operation when the gate locking / unlocking device enters the room The procedure when the room entrant 3a enters the management area 4 using the gate locking / unlocking device 1a having the above configuration will be described with reference to FIG.
[1] Detection of Entry / Exit Persons Until the entry notification means 19 detects an entry / exit person approaching the entry / exit gate 5, the entry control means 16 discards the voice feature data obtained from the feature acquisition means 14, and stores the feature memory. It is not stored in the means 12 (step 201).
[2] Keyword entry of entry / exit person The entry / exit person who desires entry enters the microphone 131 of the voice input means 13 and pronounces a keyword used when leaving the room. The voice input unit 13 converts the voice including the keyword input to the microphone 131 into a voice signal and outputs the voice signal to the feature acquisition unit 14 (step 202).
[3] Acquisition of Feature Data The feature acquisition unit 14 analyzes the voice signal obtained from the voice input unit 13 and obtains pronunciation data representing the voice characteristics of the person entering and leaving the room 3a (step 203).

[4] Feature Data Registration The room entry control means 16 is used when the gate locking / unlocking apparatus 1a is operated to instruct the voice feature registration of the room entrant 3a. This voice feature registration is performed by analyzing the voice signal obtained from the voice input means 13 to obtain data representing the voice characteristics of the person entering and leaving the room 3a and registering the obtained data in the feature storage means 12 (step 204). .
[5] Unlocking the entrance / exit gate The locking control means 11 is instructed to unlock by the entrance control means 16 and unlocks the entrance / exit gate 5. As a result, the person entering / leaving can enter the room through the entrance / exit gate (step 205). Furthermore, the locking control means 11 controls the electromagnetic relay connected to the stop switch so that the mechanical device is in a stopped state.
[6] Opening the gate for a predetermined time When the locking control means 11 unlocks the entrance / exit gate 5, the gate opening restriction means 18 starts measuring time until a predetermined time elapses (step 206). Further, the gate opening restriction means 18 instructs the lock control means 11 after a predetermined time has elapsed, and unlocks the entrance / exit gate 5 (step 207).
[7] Display of entry indicator lamp The feature storage unit 12 notifies the entry display unit 15 of the number of voice feature data currently stored, that is, information on the number of people entering the room. In addition, the room entry display means 15 causes the number display lamp 152 to light a number indicating the number of rooms entered in accordance with the number information of the room entry voice feature data (step 208).

(3) Operation of the gate locking / unlocking device when leaving the room The procedure when the room entry / exiting person 3b in the management area uses the above-configured gate locking / unlocking apparatus 1a to leave the management area will be described with reference to FIG. .
[1] Detection of Entry / Exit Persons The exit control means 17 discards the voice feature data obtained from the feature acquisition means 14 until the exit notification means 20 detects an entrance / exit person approaching the entrance / exit gate 5, and stores the feature memory. It is not stored in the means 12 (step 211).
[2] Keyword entry of entry / exit person The entry / exit person 3b who desires to leave the room pronounces a keyword used when leaving the room toward the microphone 131 of the voice input means 13. The voice input unit 13 converts voice including the keyword input to the microphone 131 into a voice signal and outputs the voice signal to the feature acquisition unit 14 (step 212).
[3] Acquisition of Feature Data The feature acquisition unit 14 analyzes the voice signal obtained from the voice input unit 13 and obtains pronunciation data representing the voice characteristics of the person entering and leaving the room 3b (step 213).

[4] Retrieval / deletion of room entry voice feature data The room exit control unit 17 searches the feature storage unit 12 for room entry voice feature data that matches the content of the person's voice feature data obtained by the feature acquisition unit 14. (Step 214). If no entry voice feature data is found, [1] keyword entry for the person entering or leaving the room is performed again to wait for acquisition of new voice feature data (step 215). Also, when the keyword issued by the person entering or leaving the room is different from the keyword at the time of entering the room, it waits for acquisition of new voice feature data.
Furthermore, if there is corresponding entry voice feature data, the entry voice feature data is deleted from the feature storage means 12 (step 216).
[5] Unlocking the entrance / exit gate The lock control means 11 is unlocked by the exit control means 17 to unlock the entrance / exit gate 5. As a result, the entry / exit person can leave the entry / exit gate 5 (step 217).
[6] Opening the gate for a predetermined time When the locking control means 11 unlocks the entrance / exit gate 5, the gate opening restriction means 18 starts measuring time until a predetermined time elapses (step 218). Further, the gate opening restriction means 18 instructs the lock control means 11 after the predetermined time has elapsed, and unlocks the entrance / exit gate 5 (step 219). Furthermore, the locking control means 11 controls the electromagnetic relay connected to the stop switch so that the stop switch is turned off.
The exit control means 17 checks the number of entrance voice feature data stored in the feature storage means 12, and locks the entrance / exit gate 5 to the lock control means 11 if there is no remaining entrance voice feature data. Usually, the entrance / exit gate 5 is locked first by the gate opening restriction means 18.
[7] Display of entry indicator lamp The feature storage unit 12 notifies the entry display unit 15 of the number of voice feature data currently stored, that is, information on the number of people entering the room. In addition, the room entry display means 15 causes the number display lamp 152 to light a number representing the number of rooms entered according to the number information of the room entry voice feature data (step 220).

(4) Operation of Gate Locking / Unlocking Device Since the gate locking / unlocking device 1a uses voice recognition as in the first embodiment, it is possible to enter the room even if the occupants 3a, 3b do not carry management members such as tags. Using the voice feature data of the person as a key, it is possible to accurately grasp the number of people in the management area and perform gate locking / unlocking. For this reason, since the person who passes the gate can be distinguished by the voice of the room occupant, the measurement can be performed without error.
Furthermore, since the number indicator lamp 152 of the room entry display means 15 is provided, the number of people entering and leaving the room in the management area can be accurately grasped.
In addition, when unlocked, the locking control means 11 controls the electromagnetic relay connected to the stop switch so that the mechanical device is in a stopped state, so that the safety of the occupant is increased, the mechanical device is driven, etc. There is no risk of trouble.

It is a block diagram for demonstrating the structure of the gate locking / unlocking apparatus which concerns on Example 1. FIG. It is a flowchart for demonstrating operation | movement of the gate locking / unlocking apparatus at the time of entering the room based on Example 1. FIG. It is a flowchart for demonstrating operation | movement of the gate locking / unlocking apparatus at the time of leaving based on Example 1. FIG. It is a block diagram for demonstrating the structure of the gate locking / unlocking apparatus which concerns on Example 2. FIG. It is a flowchart for demonstrating operation | movement of the gate locking / unlocking apparatus at the time of entering into the room which concerns on Example 2. FIG. It is a flowchart for demonstrating operation | movement of the gate locking / unlocking apparatus at the time of leaving based on Example 2. FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1, 1a; Gate locking / unlocking apparatus, 11; Locking control means, 12; Feature storage means, 13; Voice input means, 131; Microphone, 14; Feature acquisition means, 15; ; Number indicator lamp 16; Entrance control means 17; Exit control means 18; Gate opening restriction means 19; Entrance notification means 20; Exit notification means 3 a, 3 b; Entry / exit gate, 51; electromagnetic key.

Claims (5)

A gate locking / unlocking device that locks and unlocks the entrance / exit gate,
Locking control means for locking and unlocking the entrance / exit gate;
Feature storage means capable of storing one or more voice feature data representing voice characteristics of a person entering and leaving the entrance / exit gate as entrance voice feature data;
Voice input means for receiving voice generated by the person entering and leaving the room and converting the voice into a voice signal;
Feature acquisition means for acquiring voice feature data from the voice signal converted by the voice input means;
When the feature storage means stores the entry voice feature data, the entry display means for displaying the entry during the room,
When the entry / exit person enters the room, the voice feature data of the entry / exit person obtained by the feature acquisition means is stored in the feature storage means as entry voice feature data, and the locking control is performed to unlock the entry / exit gate. Entry control means for instructing means;
When the entry / exit person leaves the room, (1) search the stored voice characteristic data stored in the room, which is the same content as the voice feature data of the entry / exit person obtained by the feature acquisition unit,
(2) If the matching voice characteristic data is found by the search, the voice characteristic data is deleted from the characteristic storage means,
(3) A gate locking / unlocking device comprising: an exit control means for instructing the locking control means to lock the entrance / exit gate when there is no entry voice feature data stored in the feature storage means. apparatus.   2. The gate locking / unlocking device according to claim 1, wherein the room entry display means displays the number of persons in the room voice feature data stored in the feature storage means as the number of persons entering the room. The exit control means unlocks the entrance / exit gate when the entry voice feature data matching the search is found,
The locking control means is configured to lock the entrance / exit gate after a predetermined time has elapsed since the lock control means detects that the entrance / exit gate is unlocked by an instruction from the entrance control means or the exit control means. The gate locking / unlocking device according to claim 2, further comprising gate opening restriction means for instructing. Entry notification means for notifying the entry control means of entry of the person entering and leaving the room;
A exit notification means for notifying the exit control means of the exit of the person entering and leaving the room;
The room entry control means performs the storage and the unlocking only when the notification by the room entry notification means is received,
4. The gate locking / unlocking device according to claim 1, wherein the leaving control unit performs the deletion and the locking only when a notification from the leaving notification unit is received.   5. The locking control means stops the operation of a mechanical device managed in an area where the entrance / exit gate is provided while room feature voice feature data is stored in the feature storage means. Gate locking and unlocking device.

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