JP7664707B2 - Automatic door maintenance support device, automatic door maintenance support method, and program - Google Patents

Description

The present invention relates to maintenance support technology for automatic doors.

Automatic doors, which open and close automatically using electricity or other power sources, are widely used and are installed in all types of buildings and facilities. To ensure that automatic doors operate normally, there are cases where maintenance contracts are concluded for the upkeep and management of the automatic doors (see, for example, Patent Document 1). For customers who have concluded a maintenance contract, regular maintenance and inspections are usually carried out after installation.

JP 2002-342504 A

For customers who do not have a maintenance contract, we recommend that they carry out maintenance when it is necessary. However, even when it is time for maintenance, automatic doors can generally be opened and closed, and passage through them is often possible without any problems. Therefore, even if we explain to customers that it is time for maintenance, they may not understand the need for maintenance.

In view of the above, the object of the present invention is to provide an automatic door maintenance support device that can assist in determining whether maintenance is required for an automatic door.

To solve the above problem, an automatic door maintenance support device according to one embodiment of the present invention includes an acquisition unit that acquires operation information on multiple automatic doors, a comparison unit that compares operation information on automatic doors with the same opening and closing method among the operation information on the multiple automatic doors acquired by the acquisition unit, and an information presentation unit that presents door identification information for identifying automatic doors that do not meet a predetermined standard based on the comparison results of the comparison unit.

An automatic door maintenance support method according to another aspect of the present invention includes the steps of acquiring operation information on multiple automatic doors, comparing the acquired operation information on automatic doors with the same opening and closing method, and presenting door identification information for identifying automatic doors that do not meet a predetermined standard based on the comparison results.

A further aspect of the present invention is a program for causing a computer to execute the steps of acquiring operation information on multiple automatic doors, comparing the acquired operation information on automatic doors with the same opening and closing method, and presenting door identification information for identifying automatic doors that do not meet a predetermined standard based on the comparison results.

The present invention makes it possible to assist in determining whether maintenance is required for automatic doors.

FIG. 1 is a front view showing a schematic diagram of an automatic door. FIG. 2 is a block diagram showing the function of an automatic door. 1 is a diagram showing a schematic configuration of an automatic door maintenance support device; FIG. 4 is a diagram showing an example of the relationship between the position of an automatic door, the door speed, and a drive voltage. FIG. 4 is a diagram showing an example of the relationship between the door speed of an automatic door and elapsed time. FIG. 13 is a diagram showing an example of comparison information.

In the following embodiments and variations, identical or equivalent components and parts are given the same reference numerals, and duplicate explanations are omitted where appropriate. The dimensions of the parts in each drawing are enlarged or reduced as appropriate to facilitate understanding. Some parts that are not important for explaining the embodiments are omitted in each drawing.

[Embodiment]
An overview of this embodiment will be described. The automatic door maintenance support device of this embodiment extracts automatic doors with the same opening and closing method from among multiple automatic doors, and compares the operation information described below. Operation information for automatic doors with very similar conditions, namely the same opening and closing method, should basically be similar unless there is an abnormality or deterioration of the automatic door. Therefore, by finding operation information that deviates from other operation information, automatic doors that may be abnormal or deteriorated can be effectively found. As a result, it becomes possible to support the determination of the need for maintenance for a large number of automatic doors installed in various locations.

The automatic door that is the target of maintenance support by the automatic door maintenance support device 1 of the present invention will be described with reference to Figures 1 and 2. Figure 1 is a front view showing an outline of an automatic door 100. Figure 2 is a block diagram showing an outline of the functions of the automatic door 100.

The functional blocks shown in FIG. 2 are realized in hardware terms by computers with calculation functions, control functions, memory functions, input functions, and output functions, various electronic elements, mechanical parts, etc., and in software terms by computer programs, etc., but here, functional blocks realized by the cooperation of these are depicted. Therefore, it will be understood by those skilled in the art that these functional blocks can be realized in various forms by combining hardware and software.

As shown in FIG. 1 or 2, the automatic door 100 mainly comprises a door section 10 that opens and closes, a controller 20 that controls the entire automatic door 100, a door sensor 30 that detects pedestrians, a drive unit 40 that generates power, and a power transmission unit 50 that transmits power to the door section 10. In the following description, the left-right direction in FIG. 1 is the horizontal direction (moving direction), and the up-down direction in FIG. 1 is the vertical direction, but the automatic door 100 can be installed in any position, and the installation direction is not limited to the following example. In the example of FIG. 1, an automatic door with a double-sliding opening and closing method is shown, but this is not limited thereto, and the opening and closing method may be a single-sliding type, a swing door type, a folding door type, a rotating type, etc.

The door section 10 includes a first movable door 11L and a second movable door 11R that are each arranged to be movable in the horizontal direction, a first fixed door 12L and a second fixed door 12R that are arranged at positions overlapping the first movable door 11L and the second movable door 11R when the first movable door 11L and the second movable door 11R are in the open state, and a guide mechanism 13 that guides the horizontal movement of the first movable door 11L and the second movable door 11R. When the door section 10 is opened, the first movable door 11L shown on the left side in FIG. 1 is driven to the left, and the second movable door 11R shown on the right side in FIG. 1 is driven to the right. When the door section 10 is closed, the first movable door 11L is driven to the right, and the second movable door 11R is driven to the left, in the opposite direction to the opening operation. The number, shape, opening and closing method, etc. of the doors that constitute the door section 10 are not limited to the above, and can be designed appropriately according to the needs of the installation location. Similarly, the direction in which the door 10 can move is not limited to the horizontal direction, but may be inclined from the horizontal direction.

The guide mechanism 13 includes a running rail 131, a door roller 132, a guide rail 133, and a vibration prevention part 134. The running rail 131 is a columnar rail member that extends horizontally above the movable doors 11L and 11R over the entire movable range. Two door rollers 132 are provided on the upper part of each of the movable doors 11L and 11R, and each of the movable doors 11L and 11R is suspended on the running rail 131. When each of the movable doors 11L and 11R is opened or closed horizontally, the door rollers 132 roll on the running rail 131, enabling smooth opening and closing operations. The guide rail 133 is a groove-shaped rail member that extends horizontally below the movable doors 11L and 11R over the entire movable range. The vibration prevention part 134 protrudes from the lower part of the movable doors 11L and 11R and fits into the groove-shaped guide rail 133. When each movable door 11L, 11R is opened or closed horizontally, the vibration prevention portion 134 moves along the guide rail 133, so vibrations in the projection direction (perpendicular to the paper surface of FIG. 2) of each movable door 11L, 11R can be suppressed.

The controller 20 can set various parameters related to the opening and closing of the door section 10. For example, the controller 20 can set the opening and closing speed, opening and closing strength, opening width, etc. The opening and closing speed is the horizontal speed of the first movable door 11L and the second movable door 11R, and the directions of the speeds of both doors are opposite to each other. It is preferable that the magnitude (speed) of the speeds of both doors is equal, but they may be different. In addition, the opening and closing speed may be set to a different value for normal opening and closing and other times. For example, in the case of a so-called reversal in which the door section 10 switches to an opening operation to urgently avoid a passerby being pinched by the closing movable doors 11L and 11R during a normal closing operation, the speed of the movable doors 11L and 11R during the opening operation may be set to a value different from the speed during a normal opening operation.

The opening and closing strength is the magnitude of the force exerted when the movable doors 11L, 11R are opened and closed, and is controlled by the torque value generated by the motor 41, which will be described later. As with the opening and closing speed described above, it is preferable that the opening and closing strength of the movable doors 11L, 11R is basically the same. Also, different opening and closing strengths may be set for normal opening and closing and other times. The opening width is the horizontal distance between the first movable door 11L and the second movable door 11R when the door section 10 is fully open.

The controller 20 comprises a control device 21, a storage device 22, and a communication device 23. The control device 21 is realized by an arithmetic processing device implemented in a microcontroller, and is responsible for various information processing and control in the automatic door 100. The control device 21 controls the drive unit 40 to open and close the door unit 10 in response to the detection results of passersby and the like from the door sensor 30. The control device 21 can also open and close the automatic door 100 in response to receiving an opening/closing command signal for opening and closing the automatic door 100 from an operator's work terminal or a remote computer via the communication device 23. The control device 21 generates a voltage or current that drives the motor 41 of the drive unit 40.

The storage device 22 is a general-purpose memory that stores various data for the automatic door 100. In particular, in this embodiment, the storage device 22 is used to store the operation information and door condition data for the automatic door 100, which will be described later. As will be described later, the operation information and door condition data are also recorded on a remote server or the like, and can be referenced centrally.

The communication device 23 exchanges various information with communication devices external to the automatic door 100 via wired or wireless connections. For example, the communication device 23 can communicate with a work terminal used by a worker who goes to the site to install or maintain the automatic door 100. This allows the worker to check information on each part of the automatic door 100 on the work terminal and input various data on the automatic door 100. If the communication device 23 has a communication function via a public information and communication network such as the Internet, it is possible to check information on the automatic door 100 and input data from a remote computer.

The door sensor 30 comprises an activation sensor 31 and an auxiliary sensor 32. The activation sensor 31 is a photoelectric sensor mounted on the surface of the blind 60 above the door section 10. The activation sensor 31 comprises a light-emitting section that emits light such as infrared light toward the floor surface, and a light-receiving section that detects reflected light from the floor surface. When a person approaches the automatic door 100 and blocks the light, the amount of light received by the light-receiving section changes, making it possible to detect the person. When such detection information from the activation sensor 31 is input to the controller 20, the motor 41 is driven and the door section 10 opens.

The auxiliary sensor 32 is a photoelectric sensor provided on the first fixed door 12L and the second fixed door 12R of the door section 10. The auxiliary sensor 32 has a light-emitting unit provided on one of the first fixed door 12L and the second fixed door 12R, and a light-receiving unit provided on the other. The light-emitting unit and the light-receiving unit are provided at the same height from the floor surface, and the light-receiving unit detects light such as infrared light emitted horizontally from the light-emitting unit. When the door section 10 is open and a pedestrian passes through the opening and blocks the light, the amount of light received by the light-receiving unit changes, so the pedestrian can be detected. The main purpose of the auxiliary sensor 32 is to protect against closure, and when the auxiliary sensor 32 detects a pedestrian during the closing operation of the movable doors 11L and 11R, the control device 21 performs reversal control to stop the closing operation and switch to the opening operation. This makes it possible to prevent the pedestrian from being caught between the closing movable doors 11L and 11R.

The drive unit 40 includes a motor 41 as a power source that generates rotational power, and a drive pulley 42 that is driven and rotated by the motor 41. The motor 41 can be configured as any of a variety of known motors, but in this embodiment, as an example, it is a brushless motor equipped with an encoder 41A that uses a Hall element. The position of the rotor of the motor 41 detected by the encoder 41A is input to the control device 21, and a drive voltage or drive current is applied to the motor 41 accordingly, thereby generating the desired rotational power. The drive pulley 42 is connected to the rotor of the motor 41 via a gear mechanism or the like (not shown), and rotates in conjunction with it.

The power transmission unit 50 transmits the power generated by the drive unit 40 to the door unit 10, and opens and closes the movable doors 11L and 11R. The power transmission unit 50 includes a power transmission belt 51, a driven pulley 52, and a connecting member 53. The power transmission belt 51 is a circular timing belt with many teeth formed on its inner circumferential surface, and is wound around the drive pulley 42 on the right side of FIG. 2, and around the driven pulley 52 on the left side of FIG. 2. In this state, the horizontal dimension of the power transmission belt 51 is equal to the horizontal distance between the drive pulley 42 and the driven pulley 52, and is also approximately the same as the horizontal dimension of the movable range of the movable doors 11L and 11R. When the drive pulley 42 is rotated by the motor 41, the driven pulley 52 rotates in conjunction with it via the power transmission belt 51.

The connecting member 53 connects the movable doors 11L and 11R to the power transmission belt 51, respectively, for opening and closing. Here, one movable door is connected to the upper side of the power transmission belt 51, and the other movable door is connected to the lower side of the power transmission belt 51. In the example of FIG. 1, when the power transmission belt 51 rotates counterclockwise, the first movable door 11L moves to the left and the second movable door 11R moves to the right, which is an opening operation, and when the power transmission belt 51 rotates clockwise, the first movable door 11L moves to the right and the second movable door 11R moves to the left, which is a closing operation.

Figure 3 shows a schematic configuration of an automatic door maintenance support device 1 according to an embodiment of the present invention. The automatic door maintenance support device 1 supports the determination of whether maintenance is required for a large number of automatic doors installed in various locations within a building. The automatic door maintenance support device 1 comprises an acquisition unit 101, an operation information recording unit 102, a door condition recording unit 103, an automatic door designation unit 104, an extraction unit 105, a comparison unit 106, and an information presentation unit 107. The automatic door maintenance support device 1 may be provided integrally with the controller 20, may be provided separately from the controller 20, or may be provided separately from the automatic door 100.

The automatic door maintenance support device 1 of this embodiment will be described in detail. The automatic door maintenance support device 1 supports the maintenance work of a large number (m, where m is a natural number) of automatic doors A1 to Am installed in various locations. Here, each automatic door A1 to Am typically has a standard configuration as described in Figures 1 and 2, but includes automatic doors with different model numbers and specifications. Even if the model number and specifications are the same, the installation environment, installation method, operating status after installation, etc. differ from one automatic door to another, and in that sense, no two automatic doors are completely identical.

The acquisition unit 101 acquires operation information of the multiple automatic doors A1 to Am. The operation information is information associated with the actual operation of each automatic door A1 to Am. For example, the operation information in this embodiment includes the number of opening and closing operations of the automatic door 100, the travel distance of the automatic door 100, the number of safety returns that reverse the opening operation of the automatic door 100 when the automatic door 100 collides with an object (such as a passerby) during the closing operation, and the number of safety stops that stop the automatic door 100 when the automatic door 100 collides with an object while traveling. These operation information can be used to determine abnormalities, deterioration, etc. of the automatic door 100. For example, the larger the number of opening and closing operations and the travel distance, the greater the burden on the automatic door 100. This is because the above safety returns and safety stops place a greater burden on the automatic door 100 than normal opening and closing operations, and an automatic door with a large number of these operations is more likely to have abnormalities, deterioration, etc. than an automatic door with a small number of these operations. For this operational information, cumulative values from the time of installation or security inspection may be used, or cumulative values within a certain period of time in the past may be used.

The operation information of the automatic door 100 is supplied from the acquisition unit 101 to the operation information recording unit 102, associated with the automatic door 100, and sequentially stored in the operation information recording unit 102, and is read out from the operation information recording unit 102 for use. For example, a worker who goes to the installation site of the automatic door 100 can read out the operation information stored in the operation information recording unit 102 via a work terminal. In this case, the function of the acquisition unit 101 is realized in the work terminal. Also, a remote computer such as a server can read out the operation information stored in the operation information recording unit 102 via a public information and communication network such as the Internet. In this case, the function of the acquisition unit 101 is realized in the remote computer. Also, if the communication device 23 and the remote computer are constantly connected to a public information and communication network, the operation information can be transmitted in real time to the remote computer and recorded. In this case, it is not necessary to store the operation information in the operation information recording unit 102.

As is clear from the above explanation, the functions of the acquisition unit 101 are not fixedly realized in a specific device, but are realized in various devices (work terminals and remote computers) as necessary. The operation information of the automatic doors A1 to Am acquired at any time by the acquisition unit 101 is recorded centrally in the operation information recording unit 102 and can be accessed at any time from the work terminals of field workers or remote computers. Here, the operation information recording unit 102 may record all operation information of all automatic doors as is for an entire period or a certain period, or may record statistical values such as average values based on the operation information for an entire period or a certain period.

The door condition recording unit 103 records door condition data for multiple automatic doors A1 to Am. The door condition data is information on the conditions for extracting or selecting a specific automatic door 100. The door condition data includes at least data indicating the opening and closing method of the automatic door. The data indicating the opening and closing method of the automatic door indicates, for example, one of the following opening and closing methods: single-sliding, double-sliding, swing-door, folding-door, and rotating.

The door condition data is recorded in the door condition recording unit 103, for example, by a worker in charge of installation when the automatic door 100 is installed, or by a supervisor who remotely supervises the installation work. The door condition data can also be recorded in the local storage device 22 of the automatic door 100, but it is preferable that the data be read out manually by a worker or supervisor, or automatically via a network, and recorded centrally in the door condition recording unit 103 configured in a storage area of a server or the like. This allows appropriate processing to be performed in the later stages of the automatic door maintenance support device 1 by referring to the operating conditions of multiple automatic doors.

The automatic door designation unit 104 designates an automatic door, for example, based on computer operation input by an operator. Here, for example, an automatic door 100 that is nearing the time for a security inspection or an automatic door 100 belonging to a specific manager or owner is designated. In addition, each automatic door may be designated as a maintenance target in turn by the computer in a circular manner.

The extraction unit 105 extracts operation information of multiple automatic doors 100 with the same opening and closing method from the operation information recording unit 102 based on the door condition data recorded by the door condition recording unit 103. Specifically, the extraction unit 105 extracts operation information of the automatic door 100 specified by the automatic door specification unit 104 and operation information of other automatic doors 100 with the same opening and closing method as the specified automatic door 100 based on data indicating the automatic door opening and closing method.

In this embodiment, when extracting multiple automatic doors from m automatic doors A1 to Am, the extraction unit 105 extracts a total of n automatic doors B1 to Bn, consisting of automatic door B1 specified by the automatic door specification unit 104 and n-1 automatic doors B2 to Bn that have the same opening and closing method. Here, the set of automatic doors B1 to Bn is a subset of the set of automatic doors A1 to Am, and n is equal to or less than m. The extraction unit 105 supplies the extracted operation information to the comparison unit 106.

The comparison unit 106 compares the operation information of the multiple automatic doors B1 to Bn extracted by the extraction unit 105 from the operation information acquired by the acquisition unit 101, and outputs the comparison result to the information presentation unit 107. In this embodiment, the operation information of the multiple automatic doors B1 to Bn that have the same opening and closing method (double-pull type in the example of FIG. 1) is compared (the number of opening and closing operations of the automatic door 100, the travel distance of the automatic door 100, the number of safety returns, and the number of safety stops). The comparison result in this embodiment is the difference between the operation information of each automatic door B1 to Bn and the other operation information. The value of each operation information of each automatic door may be a current value or a statistical value such as an average value based on operation information for a certain period of time.

Based on the comparison result of the comparison unit 106, the information presentation unit 107 presents door identification information for identifying an automatic door 100 that does not meet the predetermined criteria. Specifically, the information presentation unit 107 judges whether the automatic door related to each piece of operation information does not meet the predetermined criteria based on whether the difference between each piece of operation information and other operation information exceeds a threshold value. If it does not meet the predetermined criteria, the information presentation unit 107 presents door identification information for identifying the automatic door 100 that does not meet the predetermined criteria to the work terminal or the like. The door identification information includes, for example, a management number that is individually determined by the automatic door 100. If there is no operation information of an automatic door that does not meet the predetermined criteria, the information presentation unit 107 presents, for example, a message to that effect to the work terminal or the like. Note that a judgment unit (not shown) may be provided, and this judgment unit may judge whether the automatic door related to each piece of operation information does not meet the predetermined criteria based on whether the difference between each piece of operation information and other operation information exceeds a threshold value, and supply the judgment result to the information presentation unit 107.

The automatic door designation unit 104, extraction unit 105, comparison unit 106, and information presentation unit 107 are realized in a work terminal when performing maintenance and inspection at the automatic door installation site, and in a computer when performing maintenance and inspection from a remote computer. In the former case, the automatic door designation unit 104 designates an automatic door at the site on the work terminal, the extraction unit 105 realized in the work terminal accesses the operation information recording unit 102 and the door condition recording unit 103 to extract operation information, and the information presentation unit 107 presents this operation information on the display screen of the work terminal, etc. Similarly, in the latter case, the automatic door designation unit 104 designates an arbitrary automatic door as a maintenance target on a remote computer, the extraction unit 105 realized in the computer accesses the operation information recording unit 102 and the door condition recording unit 103 to extract operation information, and the information presentation unit 107 presents this operation information on the display screen of the computer, etc. As described above, each function of the automatic door maintenance support device 1 is mainly realized in a work terminal used by a worker at the automatic door installation site and in a remote computer such as a server.

The following describes the operation and effects of this embodiment.

When a large number of automatic doors are installed, it is believed that the operating information for automatic doors with the same opening and closing method will basically be similar values unless there are abnormalities or deterioration. Therefore, if there is an automatic door that does not meet the specified standards, the abnormality or deterioration is suspected. According to this embodiment, automatic doors 100 that may be abnormal or deteriorated can be effectively found out of a large number of automatic doors 100. This makes it easier to understand the need for maintenance for automatic doors 100 that may be abnormal or deteriorated. Therefore, it becomes possible to support the determination of the need for maintenance for a large number of automatic doors installed in various locations.

The operation information in this embodiment includes the number of opening and closing operations of the automatic door 100, the distance traveled by the automatic door 100, the number of safety returns, and the number of safety stops. With this configuration, it is possible to identify and present the automatic door 100 associated with problematic operation information without providing any new configuration.

Below, we will explain some variations of this embodiment.

The operation information in this embodiment includes the number of opening and closing operations of the automatic door 100, the distance traveled by the automatic door 100, the number of safety returns, and the number of safety stops, but is not limited to these and may include at least one of these.

The operation information may include at least one of the drive voltage, drive current, and current flow time when driving the drive unit 40 that opens and closes the automatic door, and the braking distance required to stop the automatic door 100 while it is moving. The braking distance here includes the braking distance in the safety return and safety stop described above. For example, if there is an abnormality or deterioration in the motor 41, the expected opening and closing operation cannot be performed with the normal drive voltage and drive current. Therefore, through a control loop or the like, the drive voltage and drive current become too high or too low, the current flow time becomes longer than normal, and the braking distance becomes larger than normal. Therefore, by comparing these pieces of operation information, automatic doors that may be abnormal or deteriorated can be identified.

The operation information may include at least one of the following: first correlation data showing the correlation between the position of the door section 10 of the automatic door 100 between the fully closed position and the fully open position of the automatic door 100 and at least one of the driving voltage, driving current, and running speed; and second correlation data showing the correlation between the running speed of the automatic door 100 and the elapsed time from the start of one of the opening and closing operations of the automatic door 100. First, with reference to FIG. 4, the first correlation data will be described using an example in which the motor 41 has deteriorated and its performance has decreased due to demagnetization of the field magnet (not shown). FIG. 4 is a graph showing the running speed Vd and driving voltage Em of the door section 10 relative to the position of the door section 10 during the opening operation. The solid lines in FIG. 4 show the running speed (door speed) Vd (A) and driving voltage Em (A) of the automatic door 100 (A) in the initial state in which the motor 41 is not deteriorated. The dashed lines in Figure 4 show the travel speed Vd (B) and drive voltage Em (B) of the automatic door 100 (B) when the capacity of the motor 41 is reduced. Here, the opening operation of this embodiment includes an acceleration control operation that accelerates the door section 10 stopped in the closed position to a predetermined first speed, a high-speed control operation that maintains the first speed, a deceleration control operation that decelerates to a second speed, a low-speed control operation that maintains the second speed, and a door contact operation that stops the door section 10 by contacting it with a stopper (not shown).

The following can be seen from the graph of the position of the door portion 10 versus the travel speed and drive voltage in FIG.
(1) In the high speed range (high speed control operation), the voltage Em(B) of the automatic door 100(B) is higher than the voltage Em(A) of the automatic door 100(A).
(2) The door speed Vd(B) of the automatic door 100(B) corresponding to the same position in the acceleration range (during acceleration control operation) is lower than the door speed Vd(A) of the automatic door 100(A).
(3) When the acceleration ends (when the first speed in FIG. 4 is reached), the automatic door 100(B) is located behind the automatic door 100(A) in the closed state.

Although Figure 4 uses drive voltage as an example, similar results can be obtained with drive current. Also, while Figure 4 uses deterioration of the motor 41 as an example, other factors such as wear on the rollers 132 can also cause an increase in the running resistance of the door section 10 to produce similar results to those shown in Figure 4. Therefore, by comparing the first correlation data to determine whether there is a deviation in the drive current, drive voltage, and running speed, it is possible to identify automatic doors that may be abnormal or degraded.

Next, the second correlation data will be described with reference to FIG. 5, taking the case where the power transmission belt 51 has become loose as an example. FIG. 5 is a graph showing the travel speed Vd of the automatic door 100 versus the elapsed time from the start of the opening operation of the automatic door 100. The solid line in FIG. 5 shows the travel speed Vd(C) of the automatic door 100(C) in the initial state where the power transmission belt 51 is not loose. The dashed line in FIG. 5 shows the travel speed Vd(D) of the automatic door 100(D) in the state where the power transmission belt 51 is loose.

When the power transmission belt 51 becomes loose, the play in the power transmission belt 51 increases and the resistance at the start of the opening operation decreases. As a result, as shown in FIG. 5, the door speed increases sharply at the start of the opening operation. Therefore, it can be seen that the running speed Vd(D) of the automatic door 100(D) at the start of the opening operation is higher than the running speed Vd(C) of the automatic door 100(C).

Figure 5 shows an example of an opening operation, but similar results are obtained when starting a closing operation. Therefore, by comparing the second correlation data and determining whether there is a deviation in the travel speed, it is possible to identify automatic doors that may be abnormal or deteriorated.

In summary, the operation information includes at least one of the following: the number of opening and closing operations of the automatic door 100, the distance traveled by the automatic door 100, the number of safety returns, the number of safety stops, at least one of the drive voltage, drive current, and current flow time, the braking distance, the first correlation data, and the second correlation data.

The comparison unit 106 may compare at least one maximum value of the drive voltage and drive current among the operation information. When the maximum values of the drive voltage and drive current of the motor 41 are relatively large, a large load is placed on the motor 41. This increases the possibility of an abnormality or deterioration occurring in the motor 41. Therefore, by comparing these maximum values, it is possible to identify an automatic door 100 that may be abnormal or deteriorated. Note that the maximum value here may be the maximum value from the time of installation to the present, or may be the maximum value within a certain period of time from any point in time after installation to the present.

The door condition data may include data indicating the manager of the automatic door 100. The data indicating the manager of the automatic door 100 may include information for identifying the manager, such as the manager's name. In this case, the extraction unit 105 may extract operation information of the automatic door 100 with the same manager based on the data indicating the manager of the automatic door 100. Specifically, the extraction unit 105 may extract operation information of the automatic door 100 specified by the automatic door specification unit 104 and operation information of automatic doors 100 with the same manager and the same opening and closing method as the specified automatic door 100. The comparison unit 106 may compare operation information of the automatic doors 100 with the same manager extracted by the extraction unit 105. This configuration makes it easier to collectively determine the need for maintenance for all automatic doors 100 owned by the manager.

The door condition data may include at least one of data on the building in which the automatic door 100 is installed, data on the type of drive unit 40 used by the automatic door 100, and data on the installation date or security inspection date of the automatic door 100. The data on the building in which the automatic door 100 is installed includes, for example, the name and address of the building. The data on the type of drive unit 40 used by the automatic door 100 includes, for example, the model number of the drive unit 40. For example, the data on the installation date of the automatic door 100 includes the date of initial installation, and the data on the security inspection date includes the date of maintenance inspection. In this case, the extraction unit 105 may extract operation information of at least one of automatic doors installed in the same building, automatic doors using the same type of drive unit, and automatic doors installed at the same time or maintenance inspection date, based on the data on the building in which the automatic door 100 is installed, the data on the type of drive unit 40 used by the automatic door 100, and the data on the installation date or security inspection date of the automatic door 100. The comparison unit 106 may also compare the operation information extracted by the extraction unit 105 with that of at least one of automatic doors installed in the same building, automatic doors using the same type of drive unit, and automatic doors installed or inspected at the same time. With this configuration, it is possible to identify the automatic door 100 associated with problematic operation information from among the operation information of automatic doors 100 with similar usage conditions, which makes it easier to increase the reliability of the identification results.

The extraction unit 105 may extract operation information relating to the same time or period from among the operation information relating to multiple automatic doors. In this case, the comparison unit 106 may compare operation information relating to the same time or period from among the operation information relating to multiple automatic doors. With this configuration, the automatic door 100 associated with problematic operation information can be identified taking into account the season, time of day, etc., making it easier to increase the reliability of the identification results.

The comparison unit 106 may compare operation information relating to a first time point with operation information relating to a second time point that is later than the first time point, among the operation information relating to a plurality of automatic doors. According to this configuration, by comparing operation information acquired at the first time point with operation information acquired at a second time point, for example, six months after the first time point, it is possible to grasp the chronological changes in the operation information over the six months. As a result, it is possible to identify the automatic door 100 associated with problematic operation information by taking into account the degree of change, which makes it easier to increase the reliability of the identification results.

In this embodiment, the comparison result is the difference, and whether or not the automatic door deviates from the predetermined standard is determined based on whether or not the difference exceeds a threshold value, but this is not limited to the above. For example, each piece of operation information may be compared using a statistical method such as a significant difference test, and an automatic door related to operation information with a significant difference may be determined to deviate from the predetermined standard.

In this embodiment, the acquisition unit 101 acquires the operation information of all automatic doors A1 to Am, and the information presentation unit 107 presents the operation information of automatic doors B1 to Bn extracted by the extraction unit 105. However, the acquisition unit 101 may be provided with the extraction function of the extraction unit 105, and only the operation information of automatic doors B1 to Bn may be acquired from the beginning.

The information presentation unit 107 may further present comparative information for comparing the operation information of the automatic door that does not meet the predetermined criteria with the operation information of other automatic doors other than the automatic door that does not meet the predetermined criteria. The operation information of the other automatic doors may be one or more. For example, the information presentation unit 107 presents a list of operation information of n automatic doors B1 to Bn as shown in FIG. 6 to a work terminal or the like as comparative information. The list in FIG. 6 shows the management number of each automatic door 100, the number of opening and closing operations of the automatic door 100, the travel distance of the automatic door 100, the number of safety returns, and the number of safety stops. By presenting such comparative information, the degree of deviation from the operation information of other automatic doors can be grasped, making it possible to more appropriately support the determination of the need for maintenance.

The information presentation unit 107 may present operation information of automatic doors other than the automatic door that does not meet the specified criteria, the operation information having the largest difference from the operation information of the automatic door that does not meet the specified criteria. With this configuration, the operation information that does not meet the specified criteria can be compared with the operation information having the largest difference, and the difference with the problematic operation information becomes more noticeable, making it easier to determine the need for maintenance.

In the comparison information, it is preferable to highlight the cells of the automatic door control numbers associated with operation information that deviates from the specified criteria in order to make it easier to find operation information that deviates from the specified criteria in the list. The comparison information is not limited to the form of the list described above, and may be, for example, data in which operation information that deviates from the specified criteria is overlapped or arranged side by side in a graph format with other operation information.

The automatic door maintenance support device 1 of this embodiment is intended to provide maintenance support for automatic doors installed in buildings, but is not limited to this. For example, the automatic door maintenance support device 1 may also provide maintenance support for automatic doors installed in facilities such as train and bus stations.

1 Automatic door maintenance support device, 10 Door unit, 20 Controller, 21 Control device, 22 Storage device, 23 Communication device, 30 Sensor, 40 Drive unit, 41 Motor, 100 Automatic door, 101 Acquisition unit, 102 Operation information recording unit, 103 Door condition recording unit, 104 Automatic door designation unit, 105 Extraction unit, 106 Comparison unit, 107 Information presentation unit.

Claims (11)

A door condition storage unit that stores door condition data including data indicating a plurality of automatic door opening and closing methods;
An acquisition unit that acquires operation information regarding the plurality of automatic doors;
An extraction unit that extracts the automatic doors having the same opening and closing method based on the door condition data;
The automatic doors are operated by a number of different doors, each of which is connected to a different control system.
An information presentation unit presents door identification information for identifying an automatic door that does not meet a predetermined standard based on a comparison result of the comparison unit;
An automatic door maintenance support device comprising: The comparison unit further compares the operation information related to the same automatic door by a manager.
2. The automatic door maintenance support device according to claim 1. The comparison unit further compares the operation information with respect to at least one of automatic doors installed in the same building, automatic doors using the same type of drive unit, and automatic doors installed or inspected at the same time.
3. The automatic door maintenance support device according to claim 1 or 2. The operation information includes at least one of the following: the number of times the automatic door is opened and closed, the distance the automatic door is driven, the number of safety returns that cause the automatic door to reverse and open if the automatic door collides with an object during a closing operation, the number of safety stops that cause the automatic door to stop if the automatic door collides with an object while in motion, at least one of a drive voltage, a drive current and a current flow time when driving a drive unit that opens and closes the automatic door, a braking distance required to stop the automatic door while in motion, first correlation data that indicates a correlation between the position of the automatic door between a fully closed position and a fully open position and at least one of the drive voltage, the drive current and the driving speed of the automatic door, and second correlation data that indicates a correlation between the driving speed and the elapsed time from the start of one of the opening and closing operations of the automatic door.
4. The automatic door maintenance support device according to claim 1. The comparison unit compares at least one maximum value of the driving voltage and the driving current in the operation information.
5. The automatic door maintenance support device according to claim 4. The comparison unit compares the operation information of the plurality of automatic doors at the same time or for the same period.
6. The automatic door maintenance support device according to claim 1. The comparison unit compares, among the operation information regarding the plurality of automatic doors, the operation information regarding a first time point with the operation information regarding a second time point that is later than the first time point.
The automatic door maintenance support device according to any one of claims 1 to 6. The information presentation unit further presents comparison information for comparing the operation information of the automatic door that does not meet the predetermined standard with the operation information of automatic doors other than the automatic door that does not meet the predetermined standard.
The automatic door maintenance support device according to any one of claims 1 to 7. the information presentation unit presents the operation information of an automatic door other than the automatic door that deviates from the predetermined standard having a largest difference from the operation information of the automatic door that deviates from the predetermined standard;
The automatic door maintenance support device according to any one of claims 1 to 8. acquiring operation information regarding a plurality of automatic doors;
extracting the automatic doors having the same opening and closing method based on door condition data including data indicating the opening and closing methods of the plurality of automatic doors stored in a door condition storage unit in advance;
A step of comparing the extracted operation information related to the automatic doors of the same opening and closing method among the plurality of operation information obtained;
presenting door identification information for identifying an automatic door that does not meet a predetermined standard based on a comparison result of the comparing step ;
An automatic door maintenance support method comprising: acquiring operation information regarding a plurality of automatic doors;
extracting the automatic doors having the same opening and closing method based on door condition data including data indicating the opening and closing methods of the plurality of automatic doors stored in a door condition storage unit in advance;
A step of comparing the extracted operation information related to the automatic doors of the same opening and closing method among the plurality of operation information obtained;
presenting door identification information for identifying an automatic door that does not meet a predetermined standard based on a comparison result of the comparing step ;
A program for causing a computer to execute the following.

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