JP2018106346A - Alarm system and alarm program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technology capable of issuing an alarm in an alarm pattern suitable for a place.SOLUTION: An alarm system 10 comprises: an existence area acquisition unit for acquiring an existence area where a vehicle is existent, from among multiple work areas; a correspondence acquisition unit for acquiring a correspondence between an action content in the existence area and an alarm pattern from an alarm database identifying correspondences between action contents of a vehicle and alarm patterns in the multiple work areas; and an alarm control unit which receives a designation of the action content that the vehicle is caused to perform, and controls an alarm device in such a manner that an alarm is issued in the alarm pattern corresponding to the designated action content.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an alarm system and an alarm program.

  A technique for predicting the start of a vehicle and issuing a start warning when the start of the vehicle is predicted is known (see Patent Document 1).

JP-A-11-207307

However, even if a start warning is issued, the vehicle may not be interpreted as starting. That is, there is a problem that the start warning may be interpreted as an alarm meaning another content, and an appropriate response cannot be made. Such a problem is likely to occur particularly in a place where a rule is set as to which alarm pattern is issued for each alarm content. When a user who moves from a plurality of locations with different alarm pattern rules issues an alarm, the contents of the alarm intended by the user and the contents interpreted by the person receiving the alarm are likely to have a discrepancy. In addition, such a user has a problem of having to remember an alarm pattern for each place.
The present invention has been made in view of the above problems, and an object thereof is to provide a technique capable of issuing an alarm with an alarm pattern suitable for a work area.

  In order to achieve the above object, an alarm system according to the present invention includes a presence area acquisition unit that acquires a presence area in which a vehicle is present among a plurality of work areas, and action details and warnings of a vehicle in each of the plurality of work areas. From the alarm database that defines the correspondence with the pattern, the correspondence acquisition unit that acquires the correspondence between the action content and the alarm pattern in the existing area, and the specification of the action content to be performed by the vehicle are accepted, and the specified action content And an alarm control unit that controls the alarm device to issue an alarm with an alarm pattern corresponding to.

  In order to achieve the above object, the alarm program of the present invention includes a computer, a presence area acquisition unit that acquires a presence area where a vehicle is present among a plurality of work areas, and a behavior content of the vehicle in each of the plurality of work areas. From the alarm database that defines the correspondence between the alarm pattern and the alarm pattern, the correspondence acquisition unit that acquires the correspondence between the action content and the alarm pattern in the existing area, accepts the specification of the action content to be performed by the vehicle, and the specified action It functions as an alarm control unit that controls the alarm device so as to issue an alarm with an alarm pattern corresponding to the content.

  In the above-described configuration, the alarm is issued based on the correspondence between the action content of the vehicle in the presence area where the vehicle is present and the alarm pattern. Therefore, the alarm can be issued with an alarm pattern suitable for the presence area. Since an alarm database that defines the correspondence between vehicle action details and alarm patterns in each of the multiple work areas is prepared, an alarm is generated with an alarm pattern suitable for the work area even when moving between multiple work areas be able to. Further, the user does not have to remember the correspondence between the action content of the vehicle and the alarm pattern for each of the plurality of work areas.

It is a block diagram of an alarm system. 2A and 2B are explanatory diagrams of alarm patterns. It is a flowchart of a learning process. It is a flowchart of an alarm process.

Here, embodiments of the present invention will be described in the following order.
(1) Configuration of alarm system:
(2) Learning process:
(3) Alarm processing:
(4) Other embodiments:

(1) Configuration of alarm system:
FIG. 1 is a block diagram showing a configuration of an alarm system 10 according to an embodiment of the present invention. The alarm system 10 is a wristband type wearable terminal that can be worn on a user's wrist. The user of this embodiment is a truck driver, moves between multiple factories as a work area by truck, loads and loads parts and products on the truck at each factory, and loads and unloads parts and products from the truck. Perform loading and unloading work. The user uses a vehicle (forklift) 60 for loading and unloading operations. Therefore, the user uses the vehicle 60 that exists in a plurality of work areas.

  The alarm system 10 includes a control unit 20, a recording medium 30, a GPS receiving unit 41, a touch panel display 42, a speaker 44, a short-range communication unit 45, and a long-range communication unit 46. The control unit 20 includes a CPU, a RAM, a ROM, and the like, and executes an alarm program 21 stored in the recording medium 30 or the ROM.

  The recording medium 30 records map information 30a, cargo handling information 30b, and correspondence information 30c. The map information 30a includes node data, link data, and factory information. The node data mainly indicates information about the intersection. Specifically, the node data indicates the coordinates of the node corresponding to the intersection and the shape of the intersection. The link data indicates various information such as the width of a link (road section) obtained by dividing the road for each node. A node to which three or more road sections are connected corresponds to an intersection. The link data includes shape interpolation point data. The shape interpolation point data is data indicating the coordinates of the shape interpolation point set at the center in the width direction of the road section. The control unit 20 acquires the coordinates of the node and the coordinates of the shape interpolation point, and acquires a polygonal line connecting these coordinates or an approximate curve of these coordinates as the shape of the road section. The factory information is information indicating the name of the factory, the site of the factory, and the truck yard provided in the site. The factory site and the truck yard are specified by polygons, for example. The truck yard is a place where a truck can be parked and loaded and unloaded.

  The cargo handling information 30b indicates a user's cargo handling plan. The cargo handling plan indicates one or a plurality of factories planned to be visited by the user, a stay period (scheduled arrival time to scheduled departure time) in the factories, and details of work in the factories. The content of the work is either a loading work or a loading / unloading work, and the type and quantity of the cargo to be subjected to these work may be indicated in the cargo handling information 30b. The correspondence information 30c will be described later.

  The GPS receiver 41 receives radio waves from GPS satellites and outputs a signal for calculating the current location of the alarm system 10 via an interface (not shown). The touch panel display 42 includes a liquid crystal display that displays an image based on video data from the control unit 20. The touch panel display 42 includes a touch panel that detects a contact position of the user's finger on the display surface of the liquid crystal display and outputs a signal indicating the contact position to the control unit 20.

  The speaker 44 outputs sound based on the sound data output from the control unit 20. The short-range communication unit 45 is a communication circuit for performing wireless communication with the vehicle 60. In the present embodiment, the short-range communication unit 45 adopts the Bluetooth standard (registered trademark of Bluetooth SIG) as a short-range wireless communication standard. However, the communication method of the short-range communication unit 45 is not particularly limited, and may be wired communication, infrared communication, or radio wave communication other than Bluetooth.

  The vehicle 60 is a forklift, and includes a vehicle control unit 61, a drive unit 62, a lift 63, and an alarm device 64. The vehicle control unit 61 is a computer incorporating a Bluetooth standard communication circuit, and controls the drive unit 62, the lift 63, and the alarm device 64. The driving unit 62 is a mechanism that controls driving (forward, backward, steering) of the vehicle 60. The lift 63 includes a fork and a mechanism for raising and lowering the fork. The operation of the lift 63 means raising and lowering of the fork.

  The alarm device 64 is a horn that outputs an alarm sound. In the present embodiment, the vehicle control unit 61 detects a user operation on a horn button (not shown) and controls the alarm device 64 so as to output an alarm sound only during a period in which the horn button is operated. Specifically, the vehicle control unit 61 causes the alarm device 64 to output an alarm sound by outputting an alarm control signal to the alarm device 64 during a period in which the horn button is operated. The vehicle control unit 61 outputs an alarm control signal not only to the alarm device 64 but also to the alarm system 10 during a period of communication with the alarm system 10. Further, the vehicle control unit 61 outputs not only an alarm control signal but also a control signal indicating that the vehicle 60 has moved forward and that the vehicle 60 has operated the lift 63 to the alarm system 10.

  The long-distance communication unit 46 is a communication circuit for communicating with the management server 50. The long-distance communication unit 46 performs wireless communication with an access point (not shown) connected to the Internet, for example, and enables communication with the management server 50 connected on the Internet.

  The management server 50 is a computer connected to the Internet, and records a cargo handling DB (database) 50a and an alarm DB (database) 50b in a recording medium (not shown). The management server 50 can communicate with a plurality of alarm systems 10. The cargo handling DB 50a is a database in which cargo handling information 30b for a plurality of users wearing the alarm system 10 is accumulated. In the cargo handling DB 50a, a plurality of cargo handling information 30b is accumulated, and a unique user ID is associated with each cargo handling information 30b for each user. The management server 50 transmits the cargo handling information 30b to the alarm system 10 that matches the user ID of the user to be used. The cargo handling information 30b may be created by a computer, or may be created artificially by a truck operation manager.

表１は、警報ＤＢ５０ｂを示す。表１において、警報情報のそれぞれにおいて工場（Ａ１，Ａ２，Ａ３．．）と車両の行動内容と警報パターン（Ｐ１，Ｐ２，Ｐ３．．）との対応関係が規定されている。本実施形態において、行動内容が２種類規定されており、２個の行動内容のそれぞれに警報パターンが対応付けられている。具体的に、行動内容は、車両６０としてのフォークリフトがリフト６３を動作させることと、車両６０が発進することである。表１に示すように、作業エリアとしての工場ごとに警報パターンが異なり得る。例えば、車両６０が発進する際に発することが義務づけられている警報の警報パターンが工場に応じて異なる。 The alarm DB 50b is a database in which alarm information indicating the action content of the vehicle 60 and the alarm pattern in association with each factory is accumulated. That is, the alarm DB 50b is a database that defines the correspondence between the action content of the vehicle 60 and the alarm pattern in each of a plurality of factories. The cargo handling DB 50a and the alarm DB 50b are not necessarily managed by a single server, and the cargo handling DB 50a and the alarm DB 50b may be managed by separate servers.

Table 1 shows the alarm DB 50b. In Table 1, the correspondence between the factory (A1, A2, A3...), The vehicle action content, and the alarm pattern (P1, P2, P3...) Is defined in each alarm information. In the present embodiment, two types of action contents are defined, and an alarm pattern is associated with each of the two action contents. Specifically, the action content is that the forklift as the vehicle 60 operates the lift 63 and the vehicle 60 starts. As shown in Table 1, the alarm pattern may be different for each factory as a work area. For example, the alarm pattern of the alarm that is required to be issued when the vehicle 60 starts is different depending on the factory.

  The alarm pattern indicates the number of alarm periods during which an alarm sound is emitted, the length of each alarm period, and the length of a pause period during which no alarm is generated between each alarm period. 2A and 2B are graphs showing alarm patterns. FIG. 2A shows an alarm pattern (P1) in which the length of all three alarm periods is 0.5 seconds and the length of two pause periods between each alarm period is all 0.5 seconds. Has been. FIG. 2B shows an alarm pattern (P3) in which the length of one alarm period is 1.5 seconds and there is no pause period. The alarm period is a period during which an alarm control signal is output from the vehicle 60. Also, the number of pause periods is one less than the number of alarm periods.

  Next, the software configuration of the alarm system 10 will be described. The alarm program 21 includes an existence area acquisition module 21a, a correspondence relationship acquisition module 21b, and an alarm control module 21c. The existence area acquisition module 21a, the correspondence relationship acquisition module 21b, and the alarm control module 21c are program modules that cause the control unit 20 as a computer to function as an existence area acquisition unit, a correspondence relationship acquisition unit, and an alarm control unit, respectively.

  With the function of the presence area acquisition module 21a, the control unit 20 acquires a presence area where the vehicle 60 is present among the plurality of work areas. Specifically, the control unit 20 acquires the current location of the alarm system 10 by the function of the presence area acquisition module 21a, and acquires the factory where the current location exists as the presence area. That is, by acquiring a factory where the current location of the user wearing the alarm system 10 is present as an existing area, the existing area of the vehicle 60 to be used by the user is acquired. Moreover, the control part 20 acquires the presence area of the vehicle 60 from the factory which the user plans to visit in the cargo handling information 30b. For example, the control unit 20 may acquire the existence area of the vehicle 60 from a factory within a determination period (for example, 3 hours) in which the time difference between the stay period indicated by the cargo handling information 30b and the current time is determined in advance. Good.

  The alarm system 10 may include a beacon receiving unit, and the control unit 20 may acquire the factory as an existing area by receiving a factory-specific beacon. Of course, the control unit 20 may acquire the presence area based on the factory-specific information received by the short-range communication unit 45. Furthermore, the control unit 20 may receive a vehicle ID unique to the vehicle 60 from the vehicle 60 and acquire the presence area based on the vehicle ID. For example, the presence area can be acquired based on the vehicle ID by referring to a database defining a factory where the vehicle 60 is deployed for each vehicle ID. Further, the vehicle 60 records the deployment information indicating the factory where the vehicle 60 is deployed, and the control unit 20 may acquire the presence area by receiving the deployment information from the vehicle 60. Of course, the alarm system 10 may acquire the presence area based on a user input operation on the touch panel display 42.

  By the function of the correspondence acquisition module 21b, the control unit 20 uses the alarm DB 50b that defines the correspondence between the action content of the vehicle 60 and the alarm pattern in each of the plurality of work areas, and the correspondence between the action content and the alarm pattern in the existing area. Get relationship. With the function of the correspondence relationship acquisition module 21b, the control unit 20 transmits request information indicating the factory acquired as the presence area to the management server 50, and defines the correspondence between the action content and the alarm pattern in the presence area as a response. Obtained correspondence information 30c is acquired. The management server 50 searches the alarm DB 50b for a factory in the presence area indicated by the request information, extracts alarm information indicating the correspondence between the action content and the alarm pattern for the factory, and uses the alarm information as the correspondence information 30c. To the alarm system 10. For example, as shown in Table 1, when the factory A2 is acquired as an existing area, the control unit 20 acquires alarm information about the factory A2 as correspondence information 30c.

  With the function of the alarm control module 21c, the control unit 20 receives the specification of the action content to be performed by the vehicle 60, and controls the alarm device to issue an alarm with an alarm pattern corresponding to the specified action content. Specifically, by the function of the alarm control module 21c, the control unit 20 displays on the touch panel display 42 a designation button (start button, lift button) for designating the start as the action content and the operation of the lift 63, The contact of the user's finger with the designated button is detected. And the control part 20 acquires the alarm pattern corresponding to the action content corresponding to the designation | designated button which the finger | toe contacted from the corresponding | compatible information 30c, and outputs the said alarm pattern to the speaker 44 as an alarm device. The control unit 20 may control the alarm unit 64 of the vehicle 60 to issue an alarm by transmitting the alarm pattern acquired from the correspondence information 30c to the vehicle 60 by the function of the alarm control module 21c. .

  As shown in Table 1, when the factory A2 is acquired as an existing area and the start button is operated, an alarm of the alarm pattern (P3) shown in FIG. 2B is issued. Further, when the factory A2 is acquired as an existing area and the lift button is operated, an alarm of the alarm pattern (P1) shown in FIG. 2A is issued.

  In the configuration of the present embodiment described above, an alarm pattern is suitable for an existing area because an alarm is issued based on the correspondence (corresponding information 30c) between the action content of the vehicle 60 and the alarm pattern in the existing area where the vehicle 60 exists. An alarm can be issued. Since the alarm DB 50b that defines the correspondence between the action content of the vehicle 60 and the alarm pattern in each of the plurality of work areas is prepared, an alarm is generated with an alarm pattern suitable for the work area even when moving between the plurality of work areas. Can be emitted. Further, the user does not have to remember the correspondence between the action content of the vehicle and the alarm pattern for each of the plurality of work areas.

  In this embodiment, the action content of the vehicle 60 to which the alarm pattern is associated is that the forklift as the vehicle 60 operates the lift 63 and the vehicle 60 starts. Therefore, it is possible to warn that the forklift operates the lift 63 with a warning pattern suitable for each work area, and to warn the vehicle 60 to start with a warning pattern suitable for each work area.

  Here, the alarm DB 50b is created by learning, for each work area, the correspondence between the action content performed by the vehicle 60 and the alarm pattern of the alarm that is artificially issued when the action content is performed. It is a thing. The control unit 20 of the alarm system 10 acquires the control signal and the alarm control signal via the short-range communication unit 45, thereby monitoring the action content and the alarm actually performed by the vehicle 60.

  The control unit 20 acquires the number of alarm periods in which an alarm sound is generated, the length of each alarm period, and the length of a pause period during which no alarm is generated between the alarm periods, and indicates these alarms. The pattern is recorded in a RAM or the like. The control unit 20 records the alarm pattern from the start time of the first alarm period to the time when the start or lift operation of the vehicle 60 is started. In addition, the control part 20 is the alarm recorded on RAM etc., when the time-out period (for example, 20 seconds) passes from the start time of the first alarm period, without starting the operation | movement of the vehicle 60 or the operation of the lift 63. Discard the pattern. In addition, when the designation | designated button for designating action content in the touchscreen display 42 is operated, since an alarm will not be raised artificially, you may stop monitoring the alert of action content.

  When the start as the action content of the vehicle 60 or the operation of the lift 63 is actually performed, the control unit 20 includes an alarm pattern artificially issued in a period immediately before the time when the action is performed, Alarm information indicating the correspondence between the action content and the area where the vehicle 60 exists is generated and transmitted to the management server 50. The management server 50 accumulates the alarm information in the alarm DB 50b to work on the correspondence between the action content performed by the vehicle 60 and the alarm pattern of the alarm artificially issued when the action content is performed. Learn by area.

  When a plurality of alarm information is received for the same action content in the same work area, the management server 50 determines the identity of the alarm pattern indicated by the plurality of alarm information and alerts the alarm pattern having the largest number. You may record in DB50b. For example, the control unit 20 has the same number of alarm periods between two alarm patterns, the maximum value or average value of the difference in length of each alarm period is equal to or less than a reference value, and each pause period. When the maximum value and the average value of the difference in length are not more than the reference value, it may be determined that the two alarm patterns are the same. Furthermore, the management server 50 may record an average alarm pattern of a plurality of alarm patterns determined to be the same in the alarm DB 50b. The average alarm pattern may be an alarm pattern in which the length of each alarm period and the length of each pause period are average values. The management server 50 also receives an alarm pattern indicated by the alarm information having the newest transmission time among the alarm patterns indicated by the plurality of alarm information, or an alarm received from the alarm system 10 of the user who visits the work area most frequently. The alarm pattern indicated by the information may be recorded in the alarm DB 50b.

  In the configuration of the present embodiment described above, the alarm DB 50b can be created based on the alarm pattern of the alarm actually issued in the work area. Moreover, even if there is a change in the rule of the alarm pattern, the alarm pattern after the change can be learned by continuously learning.

(2) Learning process:
FIG. 3 is a flowchart of the learning process. First, the control unit 20 determines whether or not the user has deviated from the road by the function of the presence area acquisition module 21a (step S100). Specifically, the control unit 20 determines whether or not the alarm system 10 has deviated from the road by comparing the shape of the locus of the current location of the alarm system 10 and the shape of the road indicated by the map information 30a. . Here, a known map matching technique can be used.

  If it is not determined that the user has deviated from the road (step S100: N), the control unit 20 returns to step S100 and waits until the user deviates from the road. On the other hand, when it determines with the user having deviated from the road (step S100: Y), the control part 20 acquires cargo handling information 30b by the function of the presence area acquisition module 21a (step S105). Specifically, the control unit 20 transmits a user ID unique to the user wearing the alarm system 10 to the management server 50, and receives the cargo handling information 30b as a response to the user ID. The management server 50 acquires the cargo handling information 30b associated with the user ID received from the alarm system 10 from the cargo handling DB 50a, and transmits the cargo handling information 30b to the alarm system 10.

  Next, by the function of the existence area acquisition module 21a, the control unit 20 determines whether or not the user is in the work area on the cargo handling plan (step S110). That is, the control unit 20 may indicate that the current location of the alarm system 10 is within the premises of any factory indicated by the map information 30a (for example, within 50 m from the premises), and that the factory visits the cargo handling information 30b. Determine if the plant is planned.

  When it is not determined that the user is within the work area on the cargo handling plan (step S110: N), the control unit 20 returns to step S100 and then waits until the user deviates from the road. On the other hand, when it is determined that the user is in the work area on the cargo handling plan (step S110: Y), the control unit 20 determines whether the user is in the truck yard by the function of the presence area acquisition module 21a. (Step S115). In other words, the control unit 20 acquires information indicating the truck yard of the factory on the cargo handling plan in which the user exists from the map information 30a, and determines whether or not the current location of the alarm system 10 exists in the truck yard. judge. In addition, the factory on the cargo handling plan where the user exists means the area where the vehicle 60 used by the user exists.

  When it is determined that the user is not in the track yard (step S115: N), the control unit 20 returns to step S115 and waits until the user is in the track yard. On the other hand, when it is determined that the user is in the track yard (step S115: Y), the control unit 20 monitors the alarm control signal by the function of the correspondence acquisition module 21b (step S120).

  Specifically, the control unit 20 starts near field communication with the vehicle 60 in a truck yard where the truck can be parked and the user gets off the truck and approaches the vehicle 60 by the function of the correspondence acquisition module 21b. For example, only when the radio field intensity of the radio wave received by the short-range communication unit 45 is equal to or higher than a predetermined threshold, communication (pairing) of the vehicle 60 is permitted to the vehicle 60 used by the user. Only the communication may be started. Further, by providing a communication button or the like for starting communication with the alarm system 10 in the driver seat of the vehicle 60, communication may be started only for the vehicle 60 seated in the driver's seat. . As described above, the control unit 20 monitors the alarm control signal output from the vehicle 60 in a state where the short-range communication with the vehicle 60 is started.

  Next, the control unit 20 determines whether or not an alarm control signal is output by the function of the correspondence acquisition module 21b (step S125). That is, the control unit 20 determines whether or not the alarm sound is started to be output from the vehicle 60. The alarm sound is generated when a horn button (not shown) provided in the vehicle 60 is operated, and is generated artificially. When the alarm control signal is output, the control unit 20 continuously monitors the alarm control signal and records the start time and end time of the alarm period in a RAM or the like.

  Next, the control unit 20 determines whether or not the vehicle 60 has started by the function of the correspondence acquisition module 21b (step S130). That is, the control unit 20 determines whether the vehicle 60 has started based on a control signal output from the vehicle 60. When it determines with the vehicle 60 having started (step S130: Y), the control part 20 produces | generates the alarm information which matched the alarm pattern and start by the function of the correspondence acquisition module 21b (step S135). That is, the control unit 20 ends the recording of the alarm pattern at the time when the vehicle 60 starts, and the one or more recorded in the RAM or the like in the period from the start time of the first alarm period to the time when the vehicle 60 starts. Get an alarm pattern consisting of an alarm period. And the control part 20 produces | generates the alarm information which matched the acquired alarm pattern and the start as action content. This alarm information is associated with a factory acquired as an existing area.

  Next, the control unit 20 determines whether or not the user has got on the truck by the function of the presence area acquisition module 21a (step S150). That is, the control unit 20 determines whether or not the user has finished using the vehicle 60. Here, it is only necessary to determine whether or not the use of the vehicle 60 has ended, and the control unit 20 may determine whether or not the communication with the vehicle 60 has been disconnected, and the current location of the alarm system 10 is outside the factory. It may be determined whether or not. When it is not determined that the user has boarded the truck (step S150: N), the control unit 20 returns to step S125. That is, the control part 20 repeats the process which produces | generates alarm information about the content of action performed next.

  On the other hand, when it is not determined that the vehicle 60 has started (step S130: N), the control unit 20 determines whether the lift 63 has been operated by the function of the correspondence acquisition module 21b (step S140). That is, the control unit 20 determines whether or not the lift 63 has operated based on the control signal output from the vehicle 60. When it is determined that the lift 63 has operated (step S140: Y), the control unit 20 generates alarm information in which the alarm pattern and the lift operation are associated with each other by the function of the correspondence acquisition module 21b (step S145). That is, the control unit 20 finishes recording the alarm pattern at the time when the lift 63 is operated, and determines the alarm pattern in the period from the start time of the first alarm period to the time when the vehicle 60 starts. And the control part 20 produces | generates the alarm information which matched the confirmed alarm pattern and the lift operation | movement as action content. This alarm information is associated with a factory acquired as an existing area. Then, the control unit 20 proceeds to step S150.

  On the other hand, when it is not determined that the lift 63 has operated (step S140: N), the control unit 20 proceeds to the next step S150 without generating alarm information by the function of the correspondence acquisition module 21b. Here, the case where it is not determined that the lift 63 has operated means that the lift 63 has not operated until a timeout period (for example, 20 seconds) elapses from the start time of the first alarm period. In addition, the alarm period recorded in the RAM or the like until the timeout period is discarded.

  When it is determined that the user has boarded the truck (step S150: Y), the control unit 20 transmits the generated alarm information to the management server 50 by the function of the correspondence acquisition module 21b. As a result, the management server 50 accumulates the alarm information in the alarm DB 50b. As a result, the correspondence between the action content performed by the vehicle 60 and the alarm pattern of an alarm that is artificially issued when the action content is performed is learned for each work area.

(3) Alarm processing:
FIG. 4 is a flowchart of the alarm process. The alarm process is common to the learning process of FIG. 3 and steps S100 to S115. Therefore, explanation of steps S100 to S115 of the alarm process is omitted.

  When it is determined in step S115 that the user is in the track yard (step S115: Y), the control unit 20 acquires the correspondence information 30c by the function of the correspondence relationship acquisition module 21b (step S220). That is, by the function of the correspondence relationship acquisition module 21b, the control unit 20 transmits request information indicating the factory acquired as the existence area to the management server 50, and as a response, the correspondence relationship between the action content and the alarm pattern in the presence area. Acquisition of correspondence information 30c that defines

  Next, the control part 20 displays a designation | designated button by the function of the warning control module 21c (step S225). That is, the control unit 20 displays a designation button (start button, lift button) for each action content indicated by the correspondence information 30c on the touch panel display 42, and detects contact of the user's finger with the designation button. The types and number of the designation buttons depend on the action content indicated by the correspondence information 30c acquired in step S220.

  Next, the controller 20 determines whether or not the start button has been operated by the function of the alarm control module 21c (step S230). If it is determined that the start button has been operated (step S230: Y), the control unit 20 causes the alarm control module 21c to output an alarm sound with the start alarm pattern (step S235). That is, the control unit 20 outputs the alarm pattern associated with the start in the correspondence information 30c acquired in step S220 to the speaker 44 as an alarm device.

  Next, the control unit 20 determines whether or not the user gets on the truck by the function of the alarm control module 21c (step S250). When it is not determined that the user has boarded the truck (step S250: N), the control unit 20 returns to step S230. That is, assuming that the user stays in the same factory, the alarm sound is continuously output based on the correspondence information 30c learned for the factory. On the other hand, when it is determined that the user has boarded the truck (step S250: Y), the control unit 20 clears the correspondence information 30c from the recording medium 30.

  On the other hand, when it is not determined that the start button has been operated (step S230: N), the control unit 20 determines whether the lift operation button has been operated by the function of the alarm control module 21c (step S240). If it is determined that the lift operation button has been operated (step S235: Y), the control unit 20 causes the alarm control module 21c to output an alarm sound with a lift operation alarm pattern (step S245). That is, the control unit 20 outputs the alarm pattern associated with the lift operation in the correspondence information 30c acquired in step S220 to the speaker 44 as an alarm device. When the warning sound is output with the warning pattern of the lift operation, the control unit 20 proceeds to step S150.

(3) Other embodiments:
In the embodiment, the start and the operation of the lift 63 are exemplified as the action contents of the vehicle 60, but an alarm about other action contents may be issued according to the operation of the alarm system 10. For example, the backward movement, acceleration, deceleration, and steering of the vehicle 60 may be adopted as the action content of the vehicle 60. Further, the operation of the lift 63 may be distinguished in detail, and ascending and descending forks may be adopted as individual action contents. Of course, the vehicle 60 is not limited to a forklift, and any work performed by a work vehicle other than the forklift (a crane truck, a power shovel, etc.) can be adopted as the action content.

  Further, the alarm pattern is not necessarily acquired by communication with the vehicle 60. For example, audio data recorded by a microphone provided in the alarm system 10 and results obtained by analyzing an alarm period and a pause period in the audio data may be recorded in the alarm DB 50b as an alarm pattern. Furthermore, the action content actually performed by the vehicle 60 may not necessarily be acquired by communication with the vehicle 60. For example, action contents such as start, reverse, and steering may be acquired based on the measurement results of an acceleration sensor and a gyro sensor included in the alarm system 10. Furthermore, the control unit 20 may acquire the movement of the hand of the user wearing the alarm system 10 based on the measurement result of the acceleration sensor or the gyro sensor. And the control part 20 may acquire operation which the user performed to the vehicle 60 from the motion of a user's hand, and may acquire the action content which the vehicle 60 actually performed according to the said operation. Furthermore, the action content actually performed by the vehicle 60 may be acquired by capturing the vehicle 60 with a camera included in the alarm system 10 and recognizing the captured image.

  In the learning process shown in FIG. 4, alarm information is generated every time an alarm sound is output, but an alarm control signal or control signal (action content) output from the vehicle 60 during the period of using the vehicle 60 is used. Control information) may be recorded, and alarm information may be generated by the management server 50 analyzing the log. Further, the management server 50 may extract a correspondence relationship between new action content (other than start and lift operation) and an alarm pattern by analyzing a log, and generate alarm information indicating the correspondence relationship.

  In the present invention, the alarm system may be a device that can move between a plurality of work areas. If the user moves between a plurality of work areas, the alarm system can be realized on a portable terminal carried by the user or a wearable terminal worn by the user. Further, if the vehicle moves in a plurality of work areas, the alarm system can be realized on the vehicle or on-vehicle equipment mounted on the vehicle. Furthermore, the alarm system only needs to be able to acquire a presence area where a vehicle or a user who wants to output an alarm exists, and may not necessarily be a device that can move between a plurality of work areas. For example, the alarm system may be realized on a server capable of acquiring vehicle and user position information by communication.

  The work area is an area where the vehicle works, and the work may be an article or passenger transportation work, or an article processing work. The work area may be a factory, a luggage collection area, a cargo base, an airport, or a port. In addition, the work area is an area in which the correspondence between the action content and the alarm pattern is ruled, and the correspondence may be different for each work area. For example, a plurality of work areas having different correspondences between action contents and alarm patterns may exist in a single factory or the like. The existence area is a work area where a vehicle that performs work exists.

  The presence area acquisition unit does not necessarily acquire the presence area based on the position of the vehicle, and may acquire the presence area based on the position of the user who uses the vehicle. The action content of the vehicle may be a content related to traveling of the vehicle or a content related to work performed by the vehicle. The alarm only needs to output an output target that can be sensed by surrounding people, and the output target may be sound, light, or an image. The alarm pattern means a change with time in the output state of the output target. That is, the alarm pattern indicates how and at what timing the output target is output. The alarm database may be any data that defines the correspondence between the action details of the vehicle and the alarm pattern in each of the plurality of work areas, and may be recorded in the alarm system or may be stored in a server that can communicate with the alarm system. It may be recorded.

  The alarm control unit only needs to accept specification of the action content to be performed by the vehicle, and the method by which the user specifies the action content is not particularly limited. For example, specification of action content may be received based on an operation on a switch or a touch panel, or specification of action content may be received based on voice recognition, line-of-sight recognition, gesture, or the like. The alarm device may be provided around the vehicle, and may be provided in the alarm system, may be provided in the vehicle, or may be provided in a device installed in the work area.

  Here, the alarm database is created by learning, for each work area, the correspondence between the action content performed by the vehicle and the alarm pattern of the alarm that is artificially issued when the action content is performed. Also good. Thereby, an alarm database can be created based on an alarm pattern of an alarm that is actually issued in the work area. Moreover, even if there is a change in the rule of the alarm pattern, the alarm pattern after the change can be learned by continuously learning.

  Further, the action content may be that a forklift as a vehicle operates the lift. It is possible to warn that a forklift operates the lift with an alarm pattern suitable for each work area. The action content may be that the vehicle starts. An alarm pattern suitable for each work area can be given when the vehicle starts.

  Furthermore, as in the present invention, the method of issuing an alarm with an alarm pattern corresponding to a work area can be applied as a program or a method. In addition, the system, program, and method as described above may be realized as a single device, or may be realized using components shared with each part of the vehicle, and include various aspects. It is a waste. For example, it is possible to provide an alarm system, an alarm system, a method, and a program provided with the above devices. Further, some changes may be made as appropriate, such as a part of software and a part of hardware. Furthermore, the invention is also established as a recording medium for a program for controlling the apparatus. Of course, the software recording medium may be a magnetic recording medium, a magneto-optical recording medium, or any recording medium to be developed in the future.

DESCRIPTION OF SYMBOLS 10 ... Alarm system, 20 ... Control part, 21 ... Alarm program, 21a ... Existence area acquisition module, 21b ... Correspondence relation acquisition module, 21c ... Alarm control module, 30 ... Recording medium, 30a ... Map information, 30b ... Cargo handling information, 30c ... Corresponding information, 41 ... GPS receiver, 42 ... Touch panel display, 44 ... Speaker, 45 ... Short range communication unit, 46 ... Long range communication unit, 50 ... Management server, 50a ... Cargo handling DB, 50b ... Alarm DB, 60 ... Vehicle, 61 ... Vehicle control unit, 62 ... Drive unit, 63 ... Lift, 64 ... Alarm,

Claims (5)

Of the plurality of work areas, an existing area acquisition unit that acquires an existing area where the vehicle exists;
A correspondence acquisition unit that acquires a correspondence between the action content and the warning pattern in the existence area from an alarm database that defines a correspondence between the action content of the vehicle and the warning pattern in each of the plurality of work areas; ,
An alarm control unit that accepts designation of the action content to be performed by the vehicle and controls an alarm device to issue an alarm with the alarm pattern corresponding to the designated action content;
With alarm system. The alarm database is created by learning, for each work area, a correspondence relationship between the action content performed by the vehicle and the alarm pattern of an alarm that is artificially issued when the action content is performed. To be
The alarm system according to claim 1. The action content is that a forklift as the vehicle operates a lift.
The alarm system according to claim 1 or 2. The action content is that the vehicle starts.
The alarm system according to any one of claims 1 to 3. Computer
An existence area acquisition unit that acquires an existence area where a vehicle is present among a plurality of work areas,
A correspondence acquisition unit that acquires a correspondence between the action content and the warning pattern in the existence area, from an alarm database that defines a correspondence between the action content of the vehicle and a warning pattern in each of the plurality of work areas,
An alarm control unit that accepts designation of the action content to be performed by the vehicle and controls an alarm device to issue an alarm with the alarm pattern corresponding to the designated action content;
Alarm program to function as.

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