JP6909180B2 - Arrangement position determination support system for maintenance terminals and wireless communication devices and arrangement position determination support method for wireless communication devices - Google Patents

Description

The present invention relates to a maintenance technique for equipment moving in a predetermined closed space, and more particularly to a technique for supporting determination of an arrangement position of a wireless communication device when monitoring the equipment wirelessly.

In equipment that moves in a predetermined closed space, a wireless communication device including an antenna is installed in the closed space, and the state is transmitted by wireless communication to an external monitoring center. At this time, there is a technique for diagnosing the radio wave condition according to the position of the equipment. For example, in Patent Document 1, when the equipment is an elevator, "the car can be moved from the top floor or the bottom floor by setting the antenna for wireless communication installed in the hoistway and the radio wave condition diagnosis mode. An operation control unit that performs diagnostic operation in one direction, a monitoring center that monitors the status of wireless communication using an antenna while the car is moving in diagnostic operation, and a vehicle that rides when a communication abnormality is detected by the monitoring center. It is equipped with a position detection unit that detects the position of the car and a radio wave condition table that stores the position of the car detected by the position detection unit as the radio wave cutoff position (summary excerpt). " There is.

JP-A-2018-2318

According to the technique disclosed in Patent Document 1, it is possible to determine whether or not the radio waves necessary for communication are secured at the position where the wireless communication device is already arranged. However, when installing equipment such as an elevator, it is not possible to determine at which position in a closed space such as a hoistway the wireless communication device should be placed to obtain the best radio wave environment.

An object of the present invention is to provide a technique for assisting in determining the best arrangement position of a wireless communication device that transmits the state of the equipment to an external device in a facility that moves in a predetermined closed space.

The present invention supports the determination of the optimum placement position of a wireless communication device that transmits information indicating the state of the equipment to the outside in the equipment moving in a predetermined closed space, which is the optimum placement position in the closed space. A maintenance terminal that performs multiple times in the closed space of the equipment while moving the equipment from the start end, which is one end, to the end, which is the other end, in the closed space. From the distance acquisition unit that acquires the distance from the start end portion and the wireless communication device that is temporarily arranged on the equipment at the timing when the distance acquisition unit acquires the distance, the wireless communication device and the general line network The radio field strength acquisition unit that acquires and stores the radio wave strength in communication via the above distance and stores it in association with the distance, and the radio wave strength that is the highest among the stored radio wave strengths after moving to the terminal part. It is characterized by including a determination unit that identifies the stored distance and outputs it as the optimum arrangement position.

Further, the present invention is for a control device for controlling the movement operation of equipment moving in a predetermined closed space, and for measuring radio strength, which is arranged on the equipment and outputs radio strength in communication via a general network. Arrangement of a wireless communication device including a wireless communication device and a maintenance terminal for determining an optimum placement position, which is an optimum placement position in the closed space of the wireless communication device that transmits information indicating the state of the equipment to the outside. In a positioning support system, the control device moves the equipment from one end, which is an end, to an end, which is the other end, in the closed space, in accordance with instructions from the maintenance terminal. In addition, the wireless communication device for measuring the radio field strength includes an operation control unit that transmits the distance from the start end portion of the equipment in the closed space to the maintenance terminal a plurality of times while the equipment is being moved. The maintenance terminal is provided with a radio wave measuring unit that returns the radio wave strength in communication via the general network to the maintenance terminal in response to a request from the maintenance terminal, and the maintenance terminal is said to have the radio at the timing when the distance is acquired from the control device. A radio field strength acquisition unit that transmits the request to the communication device and stores the radio wave intensity transmitted in response to the request in correspondence with the distance, and a radio wave strength acquisition unit that stores the radio wave strength stored after moving to the terminal portion. Among them, it is characterized by including a determination unit that identifies a stored distance corresponding to the highest radio wave intensity and outputs it as the optimum arrangement position.

Further, the present invention determines an optimum arrangement position of a wireless communication device that transmits information indicating the state of the equipment to the outside in the equipment moving in a predetermined closed space, which is the optimum arrangement position in the closed space. This is a method for supporting the placement and positioning of a wireless communication device, which is a distance information acquisition operation for moving the equipment from a start end portion, which is one end portion, to an end portion, which is the other end portion, in the closed space. In the communication via the general network with the distance from the start end of the equipment and the wireless communication device immediately after the equipment has passed the distance while the execution is started and the distance information acquisition operation is executed. The radio wave strength is acquired a plurality of times, the acquired distance and the radio wave strength are stored in association with each other, and when the distance information acquisition operation is completed, the highest radio wave strength among the stored radio wave strengths is obtained. It is characterized in that the distance stored in association with the distance is specified and output as the optimum arrangement position.

According to the present invention, in equipment moving in a predetermined closed space, it is possible to assist in determining the best arrangement position of a wireless communication device that transmits the state of the equipment to an external device. Issues, configurations and effects other than those described above will be clarified by the description of the following embodiments.

It is an overall block diagram of the elevator maintenance system of embodiment of this invention. It is a hardware block diagram of each apparatus constituting the elevator maintenance system of embodiment of this invention. It is a functional block diagram of each apparatus constituting the arrangement position determination support system of embodiment of this invention. (A) and (b) are diagrams for explaining an example of floor high radio field intensity data and floor data of the embodiment of the present invention, respectively. (A) and (b) are explanatory views for explaining an output example of an embodiment of the present invention, respectively, and (c) is an explanatory diagram for explaining an output example of a modified example of the present invention. be. It is a flowchart of the arrangement position determination support processing of embodiment of this invention. It is a functional block diagram of each apparatus constituting the arrangement position determination support system of the modification of this invention. It is an overall block diagram of the elevator maintenance system of the modification of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the present embodiment, the state of the equipment moving in the predetermined closed space is output to an external device by wireless communication. At this time, it assists in determining the optimum arrangement position of the wireless communication device in the closed space. Hereinafter, in the present embodiment, the case where the equipment is an elevator and the closed space is a hoistway will be described as an example.

First, the overall configuration of the elevator maintenance system including the placement position determination support system of the present embodiment will be described. FIG. 1 is an overall configuration diagram of the elevator maintenance system 100 of the present embodiment.

As shown in this figure, the elevator maintenance system 100 of the present embodiment includes an elevator 110, a maintenance terminal 200, and a monitoring center server 300.

The elevator 110 includes a car 112 provided in the hoistway 111 of the building, a main rope 113 having one end attached to the car 112, pulleys 114 and 115 on which the main rope 113 is hung, and the main rope 113. The balance weight 116 suspended in the hoistway 111, the hoisting machine 117 rotatably installed under the hoistway 111, and the main rope 113 wound around it, and the elevator 110. The elevator control device 120 that controls the overall operation, the monitoring device 130 that monitors the state of each part of the elevator 110, and the monitoring result by the monitoring device 130 are wirelessly transmitted to the monitoring center server 300 via the general network 400. It includes a wireless communication device 140.

The elevator control device 120 is connected to the hoisting machine 117, the car 112, the sensors installed in each part of the elevator 110, the monitoring device 130, and the maintenance terminal 200. The sensors monitor the operation of each part of the elevator 110. The elevator control device 120 receives signals from each sensor, and when an abnormality in the elevator 110 is detected, notifies the monitoring device 130.

Further, the elevator control device 120 controls the operation of the elevator 110 by an operation command from the maintenance terminal 200. Further, the elevator control device 120 transmits the elevating and lowering of the car 112, the state of each safety device, and the like to the maintenance terminal 200.

The monitoring device 130 is connected to the elevator control device 120 and the wireless communication device 140. Abnormalities such as failures and malfunctions of each part of the elevator 110 are detected via the elevator control device 120, and transmitted to the monitoring center server 300 located at a remote location via the wireless communication device 140.

The wireless communication device 140 transmits the information received from the monitoring device 130 to the monitoring center server 300 via the general network 400. The wireless communication device 140 of the present embodiment includes a transmission / reception function and a function of measuring the radio wave intensity of communication via the general network 400. Further, the wireless communication device 140 transmits the radio field strength to the maintenance terminal 200 of the request source in response to the request.

In the present embodiment, the wireless communication device 140 is removable. When the elevator 110 is installed, the wireless communication device 140 is temporarily arranged on the ceiling of the car 112, for example. Further, during operation (normal operation), it is attached to the inner wall of the hoistway 111.

The maintenance terminal 200 is a portable information processing device having a communication function, which is carried by a maintenance worker 290 when performing maintenance work. Specifically, it is connected to the elevator control device 120, receives data indicating the state of the elevator 110 from the elevator control device 120, and gives a control instruction to the elevator control device 120. Further, various data used for controlling the elevator 110 may be registered.

The monitoring center server 300 is arranged in, for example, a monitoring center and monitors the elevator 110 from a remote location. The monitoring center server 300 is connected to the monitoring device 130 via the general network 400 and the wireless communication device 140. Through these, the abnormality information of the elevator 110 detected by the monitoring device 130 is received.

[Hardware configuration diagram]
FIG. 2 shows the hardware configuration of the elevator control device 120, the monitoring device 130, the wireless communication device 140, the maintenance terminal 200, and the monitoring center server 300.

As shown in this figure, the elevator control device 120 includes a communication device 121, an arithmetic unit 122, and a storage device 123.

The arithmetic unit 122 includes a CPU (Central Processing Unit) and the like that perform various arithmetic operations for realizing the functions of the elevator control device 120.

The storage device 123 includes, for example, a ROM (Read Only Memory), an HDD (Hard Disk Drive), a RAM (Random Access Memory), and the like. The ROM or HDD stores a program or the like executed by the CPU to realize each function.

The CPU realizes each function by loading these programs into RAM and executing them. In the present embodiment, for example, by outputting a control signal to the hoisting machine 117, the hoisting machine 117 is rotated, and the car 112 is moved up and down relative to the counterweight 116. At this time, the ascending / descending speed of the car 112 is controlled according to the output of the control signal. Further, by outputting a control signal to the car 112, for example, the opening / closing operation of the car door provided in the car 112 and the landing door linked to the car door is controlled.

Further, the storage device 123 further stores data necessary for the CPU to execute the program, data generated during execution of the program, and data generated by executing the program.

The communication device 121 is a device for the elevator control device 120 to communicate with another device. In this embodiment, for example, wireless communication and wired communication are supported.

The monitoring device 130 includes a communication device 131, an arithmetic unit 132, and a storage device 133. The device having the same name as the elevator control device 120 basically has the same configuration. However, the program stored in the storage device 133 is a program that realizes the function of the monitoring device 130 described above.

The monitoring center server 300 includes a communication device 301, an arithmetic unit 302, and a storage device 303. Regarding each device of the monitoring center server 300, the device of the same name of the elevator control device 120 basically has the same configuration. However, the program stored in the storage device 303 is a program that realizes the function of the monitoring center server 300.

The monitoring center server 300 may further include a user interface (I / F) device. The user I / F device is an output device that outputs a processing result, an operation device that receives an instruction from the user, and the like. The output device is, for example, a display device, an audio output device, or the like.

The wireless communication device 140 includes a communication device 141, an arithmetic unit 142, a storage device 143, and a radio wave intensity detector 144. Regarding each device of the wireless communication device 140, the device of the same name of the elevator control device 120 basically has the same configuration. However, the program stored in the storage device 143 is a program that realizes the function of the wireless communication device 140.

Further, the radio wave strength detector 144 detects the strength of the radio wave of wireless communication when the wireless communication device 140 communicates with an external device via the general network 400.

The maintenance terminal 200 includes a communication device 201, an arithmetic unit 202, a storage device 203, and a user I / F 204. Regarding each device of the maintenance terminal 200, the device of the same name of the elevator control device 120 basically has the same configuration. However, the program stored in the storage device 203 is a program that realizes the function of the maintenance terminal 200.

The user I / F 204 is an output device that outputs a processing result, an operation input device that receives an instruction from the user, and the like. The output device is, for example, a display device, an audio output device, or the like. In the maintenance terminal 200, the user I / F 204 may be, for example, a display with a built-in touch panel that also serves as a display device and an input device.

[Placement position determination support system]
As described above, the elevator maintenance system 100 of the present embodiment includes the arrangement position determination support system 101 that assists the determination of the optimum arrangement position in the hoistway 111 of the wireless communication device 140.

In the present embodiment, the arrangement position determination support system 101 is realized by the elevator control device 120, the wireless communication device 140, and the maintenance terminal 200.

The wireless communication device 140 is attached to the inner wall of the hoistway 111 of the elevator 110 when the elevator 110 is in operation. The placement position determination support system 101 of the present embodiment determines, for example, the optimum placement position (placement height) of the wireless communication device 140 on the inner wall of the hoistway 111 when the elevator 110 is installed, and presents it to the maintenance staff 290. do.

At this time, the arrangement position determination support system 101 of the present embodiment uses the floor height measurement operation performed at the time of installation.

Specifically, first, the wireless communication device 140 is temporarily arranged on the ceiling of the car 112, the floor height measurement operation is performed, and the car 112 is driven from the lowest floor to the top floor. Then, every time the position of each floor is determined, an index indicating the radio wave environment in the wireless communication device 140 at that time is acquired. In the present embodiment, for example, the radio wave strength when the wireless communication device 140 performs wireless communication via the general network 400 is used as an index indicating the radio wave environment. The state with the strongest radio field strength is determined to be the best radio wave environment. The floor height measurement operation will be described later.

At the time of the optimum arrangement position determination process, the position of the ceiling on which the wireless communication device 140 is temporarily arranged is such that the radio wave environment is close to the actual operation. Therefore, the wireless communication device 140 of the hoistway 111 is attached as much as possible. A position close to the inner wall is desirable.

Hereinafter, each device will be described with a focus on the arrangement position determination function of the present embodiment. FIG. 3 is a functional block diagram of each device constituting the arrangement position determination support system 101 of the present embodiment.

[Elevator control device]
As described above, the elevator control device 120 controls the operation of the entire elevator 110, including the raising / lowering operation of the car 112 and the opening / closing operation of the door. Therefore, an operation control unit 127 that controls the entire operation of the elevator 110 is provided. It also includes a communication control unit 126 that controls communication.

The operation control unit 127 includes a floor height measurement operation unit 128. The floor height measurement operation unit 128 executes the floor height measurement operation according to the instruction from the maintenance terminal 200, and transmits the floor height measurement operation to the maintenance terminal 200 every time the position (floor height) of each floor is determined.

The floor height measurement operation is an operation performed to capture the position data of each floor into the elevator control device 120 when the elevator 110 is installed. In this floor height measurement operation, the car 112 is operated from the lowest floor to the top floor to acquire the position data of each floor. The operating speed shall be a low speed equal to or lower than the traveling speed during normal operation.

For example, the position data is obtained by counting the pulses output by the pulse generator installed in the hoisting machine 117. In the floor height measurement operation, the pulse count value when it is detected that the car position detector installed in the car 112 crosses the shielding plate indicating the door openable zone installed on each floor is used as the position data. Convert and output as position data for each floor. The position data (floor height) is the distance from the reference position. The reference position is, for example, the lowermost end of the hoistway 111, the position when the car 112 is on the lowest floor, and the like.

The pulse generator generates a pulse signal according to the rotation of the hoisting machine 117. Further, the shielding plate is installed on each floor so that there is no step between the floor (floor) of the landing on each floor and the floor of the car 112. The car position detector is provided so as to face the shielding plate. In addition, the car position detector includes a transmitting unit and a receiving unit, and outputs a signal when the vehicle crosses the shielding plate.

The floor height measurement operation unit 128 stores the acquired position data as floor position information in association with the information that identifies each floor. The information that identifies each floor is, for example, floor information such as the first floor and the second floor. During operation, the elevator control device 120 refers to the floor position information and controls the speed of the hoisting machine 117 such as acceleration and deceleration according to the position of the car 112.

The communication control unit 126 controls the operation of the communication device 121.

[Wireless communication device]
The wireless communication device 140 includes a communication control unit 146 and a radio wave measurement unit 147.

The communication control unit 146 controls the communication device 141 to realize communication. In the present embodiment, communication between the monitoring device 130 and the maintenance terminal 200 and wireless communication with the monitoring center server 300 via the general network 400 are realized.

The radio wave measuring unit 147 controls the operation of the radio wave intensity detector 144. In the present embodiment, the radio wave strength of wireless communication via the general network 400 is detected at the timing of receiving the request from the maintenance terminal 200, and the detected radio wave strength is returned to the maintenance terminal 200 of the request source.

The radio wave measuring unit 147 always detects the radio wave intensity at a predetermined time interval and holds it in the storage device 143, and when the request from the maintenance terminal 200 is received, the radio wave measuring unit 147 returns the radio wave intensity detected immediately before. good.

[Maintenance terminal]
The maintenance terminal 200 performs the optimum position determination process in the arrangement position determination support system 101 of the present embodiment. Therefore, the maintenance terminal 200 of the present embodiment includes a floor height measuring unit 211, a radio wave intensity acquisition unit 212, a radio wave intensity storage unit 213, a determination unit 214, an output control unit 215, and a communication control unit 216. To be equipped.

The floor height measuring unit 211 instructs the elevator control device 120 to execute the floor height measuring operation, and acquires the position data of each floor of the building in which the elevator 110 is installed from the elevator control device 120 as the floor height.

The radio wave intensity acquisition unit 212 acquires the radio wave intensity from the wireless communication device 140 at the timing when the floor height of each floor is acquired from the elevator control device 120 during the floor height measurement operation. Then, the acquired radio wave intensity is associated with the floor height acquired by the floor height measuring unit 211, and is stored in the radio wave intensity storage unit 213 as the floor height radio wave intensity data.

In the present embodiment, for example, a radio wave intensity acquisition request is transmitted from the maintenance terminal 200 to the wireless communication device 140, and the radio wave intensity returned in response to the acquisition request is acquired.

FIG. 4A shows an example of the floor high radio wave intensity data 230 stored in the radio wave intensity storage unit 213. As described above, the floor height radio wave intensity data 230 stores the radio wave intensity 232 acquired at that timing for each acquired floor height 231.

The determination unit 214 determines the floor height with the best radio wave condition after the floor height measurement operation is completed. In the present embodiment, when the signal of the completion of the floor height measurement operation is received from the elevator control device 120, the determination unit 214 refers to the floor height radio wave intensity data 230, and the floor is associated with the strongest radio wave intensity 232. The height 231 is extracted and output as the optimum floor height.

The output control unit 215 outputs the optimum floor height output by the determination unit 214 to the user I / F 204 of the maintenance terminal 200. In the present embodiment, for example, it is output to the screen of the display. The output may be the number of the floor height itself, or may be the floor information corresponding to the floor height. Examples of output screens in each case are shown in FIGS. 5 (a) and 5 (b).

For example, when outputting the floor information, the radio wave intensity storage unit 213 may further hold the floor data 240 in which the range of the floor height and the floor information are associated with each other. An example of the floor data 240 is shown in FIG. 4 (b). In the floor data 240, the corresponding floor information 242 is registered for each predetermined range 241 of the floor height. The output control unit 215 refers to the floor data 240, identifies a record including the floor height 231 output by the determination unit 214, and outputs the floor information 242 as the optimum floor.

[Flow of optimum placement position determination process]
Next, the flow of the optimum placement position determination support process by the placement position determination support system 101 of the present embodiment will be described with reference to FIG. As described above, in the present embodiment, this process is performed under the initiative of the maintenance terminal 200. Therefore, the flow of this process will be described with a focus on the maintenance terminal 200.

The floor height measurement unit 211 of the maintenance terminal 200 instructs the elevator control device 120 to start the floor height measurement operation (step S1101). At this time, if the floor high radio wave intensity data 230 is stored in the radio wave intensity storage unit 213, the data is cleared.

Upon receiving the start instruction (step S1201), the floor height measurement operation unit 128 of the elevator control device 120 starts the floor height measurement operation. Here, first, the car 112 is moved to the lowest floor (step S1202). Then, the ascending operation at a low speed is started (step S1203).

Then, when the shielding plate is detected, the floor height measuring unit 211 acquires the position data at that time as the floor height (step S1205). Then, the acquired floor height is transmitted to the maintenance terminal 200 (step S1206).

Then, the elevator control device 120 determines whether or not the acquisition of the position data has been completed up to the top floor (step S1207). Here, the determination is made using the floor position information. That is, in the elevator control device 120, the floor height measurement operation unit 128 stores the floor position information as the floor position information in association with the floor information each time the position data is acquired. If the floor position information is stored up to the top floor, it is determined that the acquisition of the position data up to the top floor has been completed. If the memory has not been completed up to the top floor, the process returns to step S1203 and the low-speed ascending operation is continued.

On the other hand, when the acquisition of the position data up to the top floor is completed, the floor height measurement operation unit 128 ends the floor height measurement operation, and a signal (floor height measurement operation end signal) indicating the end of the floor height measurement operation is sent to the maintenance terminal 200. ) Is output (step S1208).

Further, returning to the processing of the maintenance terminal 200, when the floor height measuring unit 211 receives the floor height from the elevator control device 120 (step S1103) in the maintenance terminal 200, the radio wave intensity acquisition unit 212 sends the radio wave strength acquisition unit 212 to the wireless communication device 140. The radio wave strength acquisition request is transmitted (step S1103).

When the wireless communication device 140 receives the radio wave strength acquisition request from the maintenance terminal 200 (step S1301), the radio wave measuring unit 147 transmits the radio wave strength detected at that time to the maintenance terminal 200 (step S1302).

When the maintenance terminal 200 acquires the radio wave strength from the wireless communication device 140 (step S1104), the radio wave strength acquisition unit 212 associates the received radio wave strength with the floor height received in step S1102, and sets the received radio wave strength to the floor high radio wave. The intensity data 230 is stored in the radio wave intensity storage unit 213 (step S1105).

The maintenance terminal 200 repeats the processes of steps S1102 to S1105 until the elevator control device 120 receives the floor height measurement operation end signal.

Upon receiving the floor height measurement operation end signal (step S1106), the determination unit 214 selects the floor height associated with the strongest radio wave strength 232 from the floor height radio wave strength data 230 to be the optimum floor height. (Step S1107). Then, the output control unit 215 outputs the optimum floor height determined by the determination unit 214 to the user I / F 204 (step S1108), and ends the process.

As described above, in the arrangement position determination support system 101 of the present embodiment, the elevator control device 120 is executing the floor height measurement operation, and each time the position data of each floor is transmitted, the maintenance terminal 200 is equipped with a wireless communication device. The radio wave strength is acquired from 140, and both are associated and stored. Then, when the floor height measurement operation is completed, the floor height stored in association with the strongest radio wave intensity or the floor corresponding to the floor height is presented to the maintenance staff 290.

From this information, the maintenance staff 290 can grasp the optimum installation position of the wireless communication device 140 in the hoistway 111. That is, the maintenance worker 290 sees the presented information, moves the car 112 to the floor height or the floor, gets on the ceiling of the car 112, and is temporarily placed on the ceiling. The wireless communication device 140 can be installed at substantially the same height as the hoistway 111.

Thereby, the arrangement position determination support system 101 of the present embodiment can support the determination of the optimum arrangement position in the hoistway 111 of the wireless communication device 140. That is, according to the present embodiment, it is possible to specify a position showing the best radio wave environment in the hoistway 111 without imposing a burden on the maintenance staff 290. Therefore, when the elevator 110 is installed, the installation work and the position adjustment work of the wireless communication device 140 become smooth.

<Modification example 1>
In the above embodiment, the determination unit 214 identifies and outputs one floor height (or floor information) showing the strongest radio field strength, but the present invention is not limited to this. A predetermined number of floor heights (or floor information) may be output as optimum placement position candidates in order of increasing radio field strength. For example, FIG. 5C shows an output example in which the optimum placement position (optimum floor height) and a plurality of other optimum placement position candidates are output.

As a result, for example, even if there is some obstacle on the inner wall of the hoistway 111 at the position corresponding to the best floor height and the wireless communication device 140 cannot be installed, the maintenance staff 290 can use the first It is possible to take measures such as installing it in the second candidate position.

Further, it may be configured to output all of the floor high radio wave intensity data 230 stored in the radio wave intensity storage unit 213. For example, when the output is output to the display of the maintenance terminal 200, the maintenance staff 290 can determine the floor with the strongest radio wave strength by looking at this output. In this case, it is not necessary for the determination unit 214 to determine the optimum floor height.

<Modification 2>
In the above embodiment, the position data (floor height) is transmitted from the elevator control device 120 to the maintenance terminal 200, but the present invention is not limited to this. The floor information may be transmitted from the elevator control device 120 by using the floor position information generated by the elevator control device 120. In this case, the maintenance terminal 200 stores the radio wave intensity as the floor high radio wave intensity data 230 in association with the received floor information. Then, the determination unit 214 outputs the floor information stored in association with the strongest radio wave intensity.

<Modification example 3>
Further, in the above embodiment, the maintenance terminal 200 requests and acquires the radio field strength from the wireless communication device 140. However, it is not limited to this. For example, the radio field strength may be acquired via the elevator control device 120.

In this case, the elevator control device 120 acquires the radio wave strength from the wireless communication device 140 at the timing when the position data is determined each time the position data of each floor is determined during the floor height measurement operation, and the position data (floor height). ), And the data is transmitted to the maintenance terminal 200.

<Modification example 4>
In the above embodiment, the floor height measurement operation is used in order to acquire the radio wave intensity for each position. Therefore, the radio field strength is acquired for each floor. However, it is not limited to this. For example, the radio field strength may be acquired according to the moving distance of the car 112, and the optimum position may be specified.

In this case, the elevator control device 120 has a function of performing a radio field intensity measurement operation separately from the floor height measurement operation. In the radio wave intensity measurement operation, the car 112 is driven, for example, from the lowermost end to the uppermost end of the hoistway 111 at a predetermined speed. Then, every time the predetermined distance ΔD is moved, the moving distance D (n) from the lowermost end is output to the maintenance terminal 200. Each time the maintenance terminal 200 receives the travel distance D (n), the maintenance terminal 200 receives the radio wave strength from the wireless communication device 140, associates it with the radio wave strength, and stores it. Then, when the radio wave intensity measurement operation is completed, the determination unit 214 outputs the moving distance D (n) stored in association with the strongest radio wave intensity.

In this modified example, by making the unit output as the moving distance shorter than the floor height, it is possible to acquire a more detailed change in the radio wave condition depending on the position. Therefore, a more optimal placement position can be presented to the maintenance staff 290.

In this modification, the elevator control device 120 calculates the moving distance D (t) from the lowermost end every predetermined time Δt, and outputs the moving distance D (t) to the maintenance terminal 200. good.

In this modification as well, the radio field intensity may be acquired by the elevator control device 120 from the wireless communication device 140. That is, the elevator control device 120 accesses the wireless communication device 140 via the monitoring device 130 every time the car 112 is moved by a predetermined distance or at a predetermined time, and acquires the radio wave strength. Then, the radio wave strength is transmitted to the maintenance terminal 200 together with the moving distance.

<Modification 5>
Further, when the maintenance terminal 200 holds the operating speed of the radio wave intensity measurement operation in advance, it is not necessary to receive the moving distance (position data) from the elevator control device 120.

If the operating speed of the radio field intensity measurement operation is known, the maintenance terminal 200 will ride at a predetermined time after the start of the radio wave intensity measurement operation, including the acceleration period at the start of the radio wave intensity measurement operation and the deceleration period at the end of the radio wave intensity measurement operation. The position data of the car 112 can be calculated on the maintenance terminal 200 side.

Therefore, in this case, the maintenance terminal 200 acquires the radio field intensity from the wireless communication device 140 multiple times at an arbitrary timing during the period from the instruction to start the radio wave intensity measurement operation to the end of the radio wave intensity measurement operation. Then, the position data of the car 112 at the acquired timing is calculated and stored in the radio wave intensity storage unit 213 in association with the acquired radio wave intensity. The processing by the determination unit 214 and the output control unit 215 is the same.

According to this modification, the maintenance terminal 200 can identify the optimum arrangement position and present it to the maintenance staff 290 without receiving the position data from the elevator control device 120. Therefore, the elevator control device 120 does not require a new configuration such as transmitting position data to the maintenance terminal 200.

<Modification 6>
In the above embodiment, the optimum floor height, which is the determination result of the determination unit 214, is output to the user I / F 204 of the display device, the voice output device, or the like, but the present invention is not limited to this.

For example, when the maintenance terminal 200 includes the travel control unit 217 as shown in FIG. 7, the determination result of the determination unit 214 may be further output to the travel control unit 217. The travel control unit 217 is a function of instructing the elevator control device 120 to travel the car 112.

In this case, the determination unit 214 outputs the optimum floor height, which is the determination result, to the travel control unit 217. The travel control unit 217 outputs an instruction to move the car 112 to the received optimum floor height to the elevator control device 120.

The operation control unit 127 of the elevator control device 120 moves the car 112 according to the received instruction. Then, after being arranged at the position, the maintenance worker 290 goes up on the ceiling of the car 112 and attaches the wireless communication device 140 to the inner wall of the hoistway 111.

According to this modification, the maintenance worker 290 does not need to operate the position of the car 112 by himself / herself by looking at the display of the optimum floor height or the optimum floor.

<Modification 7>
Further, in the present embodiment, at the time of determining the arrangement position, the wireless communication device 140 actually used at the time of operation is temporarily arranged on the car 112 to acquire the radio wave strength, but the present invention is not limited to this. For example, as shown in FIG. 8, even if a wireless communication device (radio wave intensity measurement wireless communication device) 149 for determining the arrangement position is provided separately from the wireless communication device 140 used at the time of operation. good.

In this case, the radio wave intensity measuring wireless communication device 149 basically has the same configuration as the wireless communication device 140 of the above-described embodiment, and is always arranged at a predetermined position of the car 112. Further, it is desirable that the radio wave intensity measuring wireless communication device 149 is the same type as the wireless communication device 140. Further, the wireless communication device 140 does not have to include the radio wave intensity detector 144 and the radio wave measuring unit 147.

When the arrangement position is determined, the maintenance terminal 200 requests the wireless communication device 149 for measuring the radio field intensity to acquire the radio wave strength, and acquires the radio wave strength. Other processes are the same as those in the embodiment.

In this way, when the wireless communication device 149 for measuring the radio field strength is permanently present on the ceiling of the car 112, for example, the radio wave strength diagnosis of the radio communication is added to the diagnosis performed regularly by the monitoring center server 300. May be good. In this case, the monitoring center server 300 has a floor height measurement function and a radio wave intensity acquisition function, as in the maintenance terminal 200.

A wireless communication device for measuring radio field strength at the monitoring center server 300 every time the vehicle is stopped at each floor during an operation inspection performed by running the car 112 from the bottom floor to the top floor edge, which is periodically performed by the monitoring center server 300. The radio field strength may be acquired from 149, and the optimum position at that time may be determined. Then, if the position is different from the current position of the wireless communication device 140, it may be described in the diagnosis result as a recommended arrangement position.

For example, the surrounding environment of the building in which the elevator 110 is installed may change from the time when the elevator 110 is installed. According to this modification, even in such a case, the radio wave environment can be checked regularly.

For example, if the recommended placement position is significantly different from the current placement position of the wireless communication device 140, the maintenance worker 290 takes measures such as moving the wireless communication device 140 to the recommended placement position at the next maintenance work. be able to.

<Modification 8>
Further, in the above embodiment, the case where the equipment is the elevator 110 and the closed space is the hoistway 111 has been described as an example, but the present invention is not limited to this. Elevators in general, for example, through certain hoistways, paths and similar parts (closed spaces), power people or objects from one floor or part of a building to another floor or other hoistway part. Any equipment may be used for moving / transporting to.

At this time, the floor height measuring unit 211 moves the equipment from the start end portion to the end portion of the closed space, performs a distance information acquisition operation for acquiring distance information at a predetermined time interval or at a predetermined distance, and also performs a distance information acquisition operation. It functions as a distance acquisition unit that acquires the distance from the start or end portion.

100: Elevator maintenance system, 101: Placement position determination support system, 110: Elevator, 111: Hoistway, 112: Basket, 113: Main rope, 114: Pulley, 115: Pulley, 116: Balance weight, 117: Hoisting machine , 120: Elevator control device, 121: Communication device, 122: Arithmetic logic unit, 123: Storage device, 126: Communication control unit, 127: Operation control unit, 128: Floor height measurement operation unit, 130: Monitoring device, 131: Communication Device, 132: Arithmetic device, 133: Storage device, 140: Wireless communication device, 141: Communication device, 142: Arithmetic device, 143: Storage device, 144: Radio intensity detector, 146: Communication control unit, 147: Radio measurement Department 149: Wireless communication device for measuring radio field strength,
200: Maintenance terminal, 201: Communication device, 202: Arithmetic device, 203: Storage device, 204: User I / F, 211: Floor height measurement unit, 212: Radio strength acquisition unit, 213: Radio strength storage unit, 214: Judgment unit, 215: Output control unit, 216: Communication control unit, 217: Travel control unit, 230: Floor height radio strength data, 231: Floor height, 232: Radio strength, 240: Floor data, 241: Range 242: Floor information, 290: Maintenance staff,
300: Monitoring center server, 301: Communication device, 302: Arithmetic logic unit, 303: Storage device, 400: General network

Claims (8)

A maintenance terminal that assists in determining the optimum placement position of a wireless communication device that transmits information indicating the state of the equipment to the outside in a facility that moves in a predetermined closed space. There,
While moving the equipment from the start end, which is one end in the closed space, to the end, which is the other end, the distance of the equipment from the start end in the closed space is determined multiple times. Distance acquisition part to acquire and
At the timing when the distance acquisition unit acquires the distance, the radio wave strength in communication between the wireless communication device and the general network is acquired from the wireless communication device temporarily arranged on the equipment, and the distance is set to the distance. The radio field strength acquisition unit that is associated and stored, and
It is characterized by including a determination unit that identifies the stored distance corresponding to the highest radio wave intensity among the stored radio wave intensities after moving to the terminal portion and outputs it as the optimum arrangement position. Maintenance terminal. The maintenance terminal according to claim 1.
An output device that presents the optimum placement position to the maintenance personnel holding the maintenance terminal is further provided.
The determination unit is a maintenance terminal characterized by outputting the optimum arrangement position to the output device. The maintenance terminal according to claim 1.
Further provided with a travel control unit for controlling the travel of the equipment.
The determination unit outputs the optimum arrangement position to the travel control unit, and then outputs the optimum arrangement position to the travel control unit.
A maintenance terminal characterized in that, when the traveling control unit receives the optimum arrangement position, it outputs an instruction to move the equipment to the optimum arrangement position to a control device of the equipment. The maintenance terminal according to claim 1.
The facility is an elevator
The predetermined closed space is a hoistway,
The distance acquisition unit is a maintenance terminal characterized by causing the elevator to perform a floor height measurement operation and acquiring the floor height of each floor as the distance. The maintenance terminal according to claim 1.
From the stored radio field intensities, the determination unit further sets a distance stored in association with a predetermined number of radio wave intensities in descending order of radio field strength in addition to the highest radio field strength. A maintenance terminal characterized by outputting as a candidate for the optimum placement position. A control device that controls the movement operation of equipment that moves in a predetermined closed space, a wireless communication device for measuring radio strength that is arranged on the equipment and outputs radio strength in communication via a general network, and the above. It is a wireless communication device placement position determination support system including a maintenance terminal for determining the optimum placement position, which is the optimum placement position in the closed space of the wireless communication device that transmits information indicating the state of equipment to the outside. hand,
The control device moves the equipment from the start end portion, which is one end portion, to the end portion, which is the other end portion, in the closed space according to the instruction from the maintenance terminal, and while moving the equipment. Provided with an operation control unit that transmits the distance from the start end portion of the equipment in the closed space to the maintenance terminal a plurality of times.
The radio wave intensity measuring wireless communication device includes a radio wave measuring unit that returns the radio wave intensity in communication via a general network to the maintenance terminal in response to a request from the maintenance terminal.
The maintenance terminal is
A radio wave intensity acquisition unit that transmits the request to the wireless communication device at the timing of acquiring the distance from the control device and stores the radio field intensity transmitted in response to the request in association with the distance.
It is characterized by including a determination unit that identifies the stored distance corresponding to the highest radio wave intensity among the stored radio wave intensities after moving to the terminal portion and outputs it as the optimum arrangement position. A support system for determining the placement position of wireless communication devices. The arrangement position determination support system for the wireless communication device according to claim 6.
The radio wave intensity measuring wireless communication device is a detachable and detachable wireless communication device, and is a wireless communication device arrangement position determination support system. In equipment that moves in a predetermined closed space, a wireless communication device that assists in determining the optimum placement position of the wireless communication device that transmits information indicating the state of the equipment to the outside, which is the optimum placement position in the closed space. It is a method of supporting the placement position of
The execution of the distance information acquisition operation for moving the equipment from the start end portion, which is one end portion, to the end portion, which is the other end portion, in the closed space is started.
While executing the distance information acquisition operation, the distance from the start end portion of the equipment and the radio wave strength in the communication between the wireless communication device immediately after the equipment has passed the distance and the general network. Get multiple times,
The acquired distance and the radio field intensity are associated and stored, and stored.
When the distance information acquisition operation is completed, the wireless communication is characterized in that the distance stored in association with the highest radio field intensity among the stored radio wave intensities is specified and output as the optimum arrangement position. Device placement position determination support method.

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