JP2921780B2 - Monitoring device for electric moving shelf system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a monitoring device for an electric moving shelf system for displaying an operating condition and an abnormality in the electric moving shelf system.

[0002]

2. Description of the Related Art Conventionally, in an article storage warehouse or the like, articles are stored in a plurality of movable shelves, and an electric movable shelf system for controlling the movement of the movable shelves is employed. . In the electric moving shelf system, a main control panel provided on a predetermined moving shelf and a plurality of distributed control panels provided on a plurality of other moving shelves, respectively, respond to an opening command of an operation unit. A system in which a plurality of moving shelves are selectively moved to selectively form a passage between the moving shelves is disclosed in Japanese Patent Publication No. 3-231.
No. 62 is known. Conventionally, in an electric moving shelf system, there is an electric moving shelf system in which a notification of an operating condition and an abnormality of a moving shelf is displayed by lighting or blinking a colored signal lamp for each signal, or by a numerical display light emitting diode. It reports basic information on the operation status and abnormalities of mobile shelves to a very limited extent,
The basic information is mainly processed in each distributed control panel, and the centralized control of information by the main control panel is not performed.

[0003]

Due to the recent labor situation, the work including the operation of the electric moving shelf system in an article storage warehouse or the like is shifting from skilled workers to short-term unskilled workers. Under these circumstances, labor saving and labor saving rationalization of management of article storage warehouses and the like are progressing, and automation of facilities such as article storage warehouses and simplification of work are increasingly being promoted. On the other hand, the demand for safety measures, safety devices, and the like for equipment such as article storage warehouses has increased, and it can be said that equipment such as article storage warehouses tends to be more complicated and sophisticated. Equipment that includes an electric moving shelf system, such as an article storage warehouse, is changing in this way, making it difficult to recover in the event of an abnormality or failure, and prolonged shutdowns due to the trouble can result in large losses. May be connected.

[0004] It is an object of the present invention to provide a monitoring apparatus for an electric moving shelf system which can solve the above-mentioned drawbacks and enables even an unskilled worker to work safely, efficiently and reliably.

[0005]

In order to achieve the above object, according to the first aspect of the present invention, a plurality of movable shelves are selectively moved by a control panel in response to an open command from an operation section, and each movable shelves is moved. In an electric moving shelf system in which a passage is selectively formed between two moving shelves, as shown in FIG. 1, information on operating conditions, abnormalities, and failures from a plurality of other moving shelves is transmitted to a predetermined main moving shelf. A serial communication circuit 1 composed of a transmission line, a touch panel type display unit 2 for displaying operating status, abnormality and failure information of the electric moving shelf system by graphic or text, and the serial communication circuit installed on the main moving shelf. The information on the operating conditions, abnormalities, and failures of the other plurality of moving shelves transmitted by the circuit 1 and the information on the operating conditions, abnormalities, and failures of the main moving shelf are grasped and the information is obtained. The causes are automatically displayed on the display unit 2 display unit 2
In response to the input signal from the touch switch, the display unit 2 is displayed on the display unit 2 in the form of graphics or characters in an interactive manner , and a self-diagnosis is performed to determine whether there is an error.
Judgment and an error is displayed on the display unit 2.
And a controller 3 for performing the operation.

[0006]

[0007]

[0008]

The operation status, abnormality and failure information from a plurality of other moving shelves are transmitted to a predetermined main moving shelf by the serial communication circuit 1 , and the controller 3 is transmitted by the serial communication circuit 1 comprising two transmission lines. The operation status, the abnormality and the failure information from the plurality of other movable shelves and the information on the operation status, the abnormality and the failure of the main movable shelf are grasped, and the information is automatically displayed on the display unit 2. in response to an input signal from the touch switch of the display unit 2 is displayed on the display unit 2 by the graphic or character interactively, and self-diagnosis
To determine if there is an error and display the error.
Display on the unit 2 . Therefore, the operator can know the operating status of the moving shelf, the information on the abnormality and the failure from the display unit 2, and can inform and display the response method of the abnormality and the failure in an interactive manner, so that even an unfamiliar worker can be safe. Thus, the work can be performed efficiently and reliably. Further, the recovery time of the abnormality can be reduced, and the operation rate can be increased. In addition, by adopting a serial communication circuit as a communication means and connecting each mobile shelf with two transmission lines, all electric signals including the operating status, abnormalities and failures of each mobile shelf are transmitted to the controller in real time. It is possible to provide a stable, economical and noise-free transmission means. In addition, the controller uses a microprocessor to determine the operation status, abnormality, and failure information of each mobile shelf, and it is possible to determine the method of displaying the information in graphic or text according to the content by software. Changes and additions can be made relatively freely only by changing the software. Further, the screen of the display unit is divided into a screen which is set to a necessary minimum size and automatically displays the display contents to the operator, and a screen which is displayed as required by the operator (according to the operator's intention). It is possible to increase the utilization effect and reduce costs. In addition, the controller performs self-diagnosis and performs
Error is displayed on the display unit
Display unit, the presence or absence of an error
It is immediately known from the
Equipment installation, especially when there are dozens of mobile racks of the same type.
Connection mistakes that occurred at the site of
Therefore, the installation time of the apparatus can be greatly reduced.

[0009]

[0010]

[0011]

FIG. 2 is a rear view showing an example of an electric moving shelf system to which the present invention is applied. This example is an example in which the present invention is applied to a lightweight electric moving shelf system.
, And a plurality of distributed moving shelves 13 ₁ , 13 ₂ ... Are arranged in a line. The fixed shelf 11 is fixed to the leftmost position, and the main movable shelf 12 and the distributed movable shelves 13 ₁ , 13 ₂ ... Are provided to be movable to the right side of the fixed shelf 11. The main moving shelf 12 incorporates a main control panel 14 and a distributed moving shelf 13.
_1, 13 ₂ ... are more distributed control panel 15 _1, 15 ₂ ... are each individually incorporated. Further, the main moving shelf 12 has a touch panel type display unit including an electronic display which is a component of the monitoring device of the first embodiment.
The socket 16 is attached.

FIG. 3 shows a circuit configuration of the electric moving shelf system. The main control panel 14 has a distributed control board 18 for performing local control of the main moving shelf 12, a communication control circuit 20, and an interface circuit 21, and the controller 19 has the moving shelf 12, 13 ₁ , 13 ₂ . It has a main control board that performs overall control. Distributed control panel 15 _1, 15 ₂ ... are each dispersed movable shelf 1
3 _1, 13 ₂ distributed control board for local control of ... 2
2 _1, 22 _2,... And, interface circuit 23 _1, 23 ₂ ...
And Electronic display 16, controller 1
9, communication control circuit 20, interface circuits 21, 23
₁ , 23 ₂ ... Constitute a monitoring device.

The distributed control board 18, the distributed control boards 22 ₁ , 22 ₂ ... Of the main control panel 14 are circuit boards used in an existing electric moving shelf system. The information of the distributed control boards 18, 22 ₁ , 22 ₂ ... Required for monitoring, that is, the operation information of each movable shelf 12, 13 ₁ , 13 _2. serial communication consisting of two transmission lines after being parallel-to-serial converted by has been the interface circuit 21, 23 _1, 23 ₂ ...
The voltage is transmitted to the communication control circuit 20 by the communication circuit 24, is converted into a voltage pulse signal suitable for input processing of the controller 19 by the communication control circuit 20, and is input to the controller 19 as two types of pulse signals. For this reason, information of a required signal form can be given to the controller 19 by simple communication control, and an advanced communication control device with a built-in microcomputer is not required, and the cost can be reduced. In addition, there is no need to use an expensive and high-speed controller, so that the processing load related to software communication can be greatly reduced, and one controller 19 can perform not only the original monitoring processing but also the communication control processing.

The controller 19 sends the moving shelf 1 to the electronic display 16 based on the input signal from the communication control circuit 20 and the operation information from the main control panel 14 such as information on abnormalities and failures.
2,13 _1, 13 ₂ ... operation information, abnormality, and displays the information of the failure or the like.

FIG. 4 shows the connection between the distributed control board 18 and the interface circuit 21 and the connection between the interface circuit 21 and the communication control circuit 20. The operation information of the main moving shelf 12, information on abnormality, failure, and the like are output in parallel, converted from parallel to serial by the interface circuit 21, and transmitted to the communication control circuit 20 via two transmission lines 24.

The interface circuits 21, 23 ₁ and 2
.. Represent a plurality of communication elements 25 ₁ , 25 ₂ ,.
Composed of 25 ₂ ··· 25 _n. This communication element 25 ₁ ,
For 25 ₂ ... 25 _n , well-known communication elements “Bitnet” NBH001 manufactured by Nippon Protec Systems Co., Ltd. are used, and each movement input in parallel from the distributed control boards 18, 22 ₁ , 22 _2. Are converted into serial data to convert the operation information of the shelves 12, 13 ₁ , 13 ₂ ...
Output to The communication elements 25 ₁ , 25 ₂ ... 25 _n are provided by the number of pieces of information input in parallel from the distributed control boards 18, 22 ₁ , 22 ₂ .

FIG. 8 shows the configuration of the communication control circuit 20. The communication control circuit 20 is a well-known interface module “BN1000” manufactured by Nippon Protec System.
-OB1 "26, monostable multivibrators 27 and 28, AND gate 29, and NOT gate 30
It is composed of

FIG. 9 is a timing chart showing each signal of the communication control circuit 20. The dedicated interface module 26 operates according to a / ENABLE signal which is a control signal for causing the controller 19 to perform a communication operation,
The SENS signal and the / SYNCH signal are output in accordance with information transmitted through the transmission line 24 (for example, information on ON / OFF of the contacts 1 to n). The SENS signal is a positive pulse signal generated based on information from the transmission line 24 and has a pulse width of 300 μm without information (contact OFF).
s, 120 μs when there is information (contact ON). / SYN
The CH signal is synchronized with each information from the transmission line 24 to 50.
This is a negative pulse signal generated at a period of 0 μs, and has a pulse width between 120 μs and 300 μs.

The SENS signal and / SYNC signal from the dedicated interface module 26
9, an AND is taken, and at the rising edge of the output signal of the AND gate 29, the monostable multivibrator 27 is triggered to cause the monostable multivibrator 2.
7, a SENS 'signal having a pulse width of 250 μs is output to the controller 19. Also, the / SYNC signal from the dedicated interface module 26 is supplied to the NOT gate 3
When the output signal of the NOT gate 30 rises, the monostable multivibrator 28 is triggered, and the monostable multivibrator 28 outputs a SYNCH 'signal having a pulse width of 250 μs.

Monostable multivibrator 2
The SENS 'signal and the SYNCH' signal from the signals 7 and 28 are signals which can be directly captured by the controller 19, and the signal from which the information from the transmission line 24 can be directly captured by the controller 19 by the communication control circuit 20. And is input to the controller 19. In addition,
Since the duty ratio of the / SYNCH signal is not sufficiently stable due to variations in the characteristics of the communication elements 25 ₁ , 25 _2, ... 25 _n , the information from the transmission line 24 is converted to a signal having a 50% duty ratio. Thus, it can be stably taken into the controller 19.

As shown in FIG. 10, the controller 19 transmits signals from the monostable multivibrators 27 and 28
The ENS 'signal and the SYNCH' signal are separately input to the interrupt port, and the interrupt processing is started at each rising edge of the SENS 'signal and the SYNCH' signal. An interrupt by the SENS 'signal is generated between each interrupt by the SYNCH' signal. If there is, there is no information, and if there is no interruption by the SENS 'signal between each interruption by the SYNCH' signal, it is interpreted that there is information. The controller 19 sequentially interprets each piece of information in this manner, and grasps each piece of information by incrementing the number of the piece of information by an interruption by the SYNCH 'signal.

The controller 19 has a SYNCH '
An interrupt is issued at the falling edge of the signal and SENS 'at that time
The presence or absence of information may be interpreted by determining whether the signal is at a high level or a low level. The communication control circuit 20 has a pulse width of 250 μm without information.
Although the SENS ′ signal of s is output, the SENS ′ signal having a pulse width of 250 μs with information may be output.

FIG. 11 shows a message flow displayed on the electronic display 16 by the controller 19. The display screens of the electronic display 16 can be roughly divided into display screens 31 relating to the operation status of the electric moving shelf system, display screens 32 and 33 for reporting abnormalities, display screens 34, 35, 36 and 37 for reporting failures, and auxiliary screens. Display screen 38,3
Nine types of display screens are provided, and the respective display screens are arranged in a hierarchy around the driving status display screen 31. The electronic display 16 is of a touch panel type that inputs an operation signal to the controller 19 when a touch switch displayed on the screen is operated.

The controller 19 is an electronic display 16
Display screen 34 and error display screen 32
Is automatically switched from the upper operation status display screen 31, and the other screens are switched to the lower screen by operating a touch switch set on each display screen of the electronic display 16 and inputting the operation signal. Switch. The display screen of the electronic display 16 may increase the number of screens as necessary, or may provide a lower screen to display detailed information.

FIGS. 12 to 15 show examples of screens displayed on the electronic display 16. The electronic display 16 normally displays an operation status display screen 31 as shown in FIG. 12 when the electric movable shelf system is normal, and displays the operation status of the electric movable shelf system from the operation status display screen 31. You can know. FIG. 13 shows an example 32 a of an abnormality display screen 32 displayed on the electronic display 16, and FIG. 14 shows a failure notification display screen 34 displayed on the electronic display 16. FIG. 15 shows an electronic display 16.
4 shows a failure data display screen 35 displayed on the screen. As described above, the electronic display 16 displays information by graphics or characters, and operates, abnormalities, and the like of the electric moving shelf system.
Always arrange the status of failures in an easy-to-understand manner and notify the workers.

FIG. 6 shows a circuit configuration of another example of the electric moving shelf system to which the present invention is applied, and FIG. 5 shows a part thereof. In this example, in the above example, the distributed control board 18 is the one 18a having the interface circuit 21 built therein, and the distributed control boards 22 ₁ , 22 ₂ ... Have the interface circuits 23 ₁ , 23 ₂ . Thing 22a ₁ , 22a ₂ ...
And

FIG. 16 shows the structure of the main control board and the distributed control boards 22 ₁ , 22 ₂ . The main control board 17 includes an open command and passage lock circuit 36, a right-hand command circuit 37, a full command detection circuit 38, a double command detection circuit 39, an abnormal state detection circuit 40, a total stop command circuit 41, and an operation signal generation circuit 42. a respective distributed control board 22 _1, 22 ₂ ..., respectively opening command and the passage lock circuit 43 _1, 43 ₂ ..., leftward instruction circuit 44 _1, 44 ₂ ..., rightward instruction circuit 45 _1, 45 ₂ ..., total command detecting circuit 46 _1, 46 ₂ ..., double command detection circuit 47 _1,
47 ₂ ···, abnormal state detection circuits 48 ₁ , 48 ₂ ···, stop limit detection circuits 49 ₁ , 49 ₂ ···, motor control circuit 5
0 _1, has a 50 ₂ ..., during operation detecting circuit 51 _1, 51 ₂ ..., motor drive unit 52 _1, 52 _2,.

Main control board 17 and distributed control boards 2
2 _1, 22 ₂ to ... normally closed stop switch 55 _0, 55 _1,
55 ₂ ... Are provided, and the stop switches 55 ₀ , 55 ₁ ,.
55 _2, ... they are connected in series between the ground point and the total stop command circuit 41. The stop command circuit 41 is a stop switch 5
5 _0, 55 _1, 55 ₂ motor control circuit stop signal pulse is input stop signal when any one is turned on by being pressed in.. 50 _1, 50 ₂ ..., and opening command and the passage lock circuit , 36, 43 ₁ , 43 ₂ ..., And the double command detection circuits 39, 47 ₁ , 47 ₂ .
48 _1, and outputs it to the 48 _2, ... are output signals of the input and a stop signal pulse motor control circuit 50 _1, 50 ₂ ..., and opening command and the passage locking circuit 36, 43 _1, 43 ₂ ... .

Each open command and passage lock circuit 36, 4
3 _1, 43 ₂ ... are open command switch 54 _0, 54 _1, 54 ₂ ...
When the is pressed and turned on, an open command signal is output. Each opening command and the passage locking circuit 36, 43 _1, 43 ₂ ...
· Respectively passage width regulating switch 53 respectively between each of the power _0, 53 _1, 53 _2, ... are connected, each opening command and the passage locking circuit 36, 43 _1, 43 ₂ ... each passage width regulating switch 53 _0, 53 _1, 53 ₂ ... off motor controls the lock signal in the circuit 50 _1, and outputs it to the 50 ₂ ... and left row command circuit 44 _1, 44 _2,. The passage width regulating switches 53 ₀ , 53 ₁ , 53 ₂ ...
_1, 13 ₂ when subjected passed swing arm between ... is rotated to an angle defined by passage between the shelves 11, 12, 13 _1, 13 ₂ ... it reaches a predetermined width Is turned off.

The opening command and the passage lock circuit 36 outputs an open command signal _on-0 opening command switch 54 to the rightward instruction circuit 37, the right row command circuit 37 is open command signal from the opening command and passageway locking circuit 36 rightward command circuit 45 of the right row command signal distributed control board 22 in ₁ by ₁ and the motor control circuit 5
0 to output to _1. In addition, each open command and passage lock circuit 4
3 _1, 43 ₂ ... are ₁ respectively open command switch 54, 54 ₂ -
· Leftward command circuit an open command signal on-44 _1, 44 ₂ ...
And outputs the rightward instruction circuit 45 _1, 45 _2,.

The open command signal from the respective distributed control board 22 _1, 22 ₂ rightward instruction circuit 45 _1, 45 ₂ ... Each opening command and the passage lock circuit 43 ₁ in., 43 ₂ ... rightward command circuit 45 ₂ in the right side of the distributed control board 22 _2, 22 ₃ in ... by being inputted, 45 ₃ ..., and the motor control circuit 5
Output a right-hand command signal to 0 ₂ , 50 ₃ . Left row command circuit 44 ₁ of the distributed control board 22 ₁ outputs a leftward command signal to the motor control circuit 50 ₁ by the open command signal from the open command and the passage lock circuit 43 ₁ is input, the distributed control board 22 _2, 22 ₃ leftward command circuit in ... 44 _2, 44 ₃ ...
Each opening command and the passage lock circuit 43 _2, 43 ₃ ...
.. And the left-side command circuits 44 ₁ , 44 in the motor control circuits 50 ₂ , 50 ₃ ... And the left-side distributed control boards 22 ₂ , 22 _{3. 2} ...
Output to Further, the left row command circuit 44 _2, 44 ₃ ... are opened respectively command and passages locking circuit 36, 43 _1, 43 ₂ ...
・ The output of the left-hand command signal is interrupted by the lock signal from.

All the command detection circuits 38, 46 ₁ , 46 ₂ ... Have issued command signals for forming passages in the main control board 17 and the distributed control boards 22 ₁ , 22 _2. And outputs an output signal to the operation signal generation circuit 42. Double command detection circuit 39, 47 _1, 47 ₂ ... main control board 17, it is detected that the respective command signal in a distributed control board 22 _1, 22 ₂ in ... is issued to the dual output A signal is output to the all stop command circuit 41, and the abnormal state detection circuit 40,
48 _1, 48 _2, ... outputs the output signal to all stop command circuit 41 detects the abnormality in each shelf 12, 13 _1, 13 every ₂ ....

The stop limit detecting circuits 49 ₁ , 49 ₂ ... Detect that the movable shelves 12, 13 ₁ , 13 _2. and outputs it to the _1, 50 _2... Motor drive unit 52 _1, 52 ₂ ... are allowed to forward and reverse rotation by driving a plurality of motors, respectively, each of the mobile shelves forward and reverse rotation of the motor 12, 1
3 _1, 13 _2, ... are moved in the lateral direction.

The motor of each motor control circuit 50 _1, 50 ₂ ... motor driving unit 52 ₁ respectively by rightward command from rightward instruction circuit 37, 45 _1, 45 ₂ ..., 52 ₂ ... Move forward and move the moving shelves 12, 13 ₁ , 13 ₂ ... In the right direction, and the motor drive unit 52 is driven by a left-hand command from the left-hand command circuits 44 ₁ , 44 _{2. 1,} 52 ₂ movable shelf 12, 13 ₁ ... the motor is reversed, 13 ₂ ... are operated to move to the left. Each motor control circuits 50 _1, 50 ₂ ..., respectively opening command and the passage lock circuitry 36, 43 _1, 43 ₂ motor drive unit 52 ₁ by the lock signal from ..., 52 ₂ ... motor Are locked so that the movable shelves 12, 13 ₁ , 13 ₂ ... Are locked, and the total stop command circuit 41 and the stop limit detecting circuit 4 are controlled.
9 _1, 49 motor driving unit 52 ₁ by ₂ ... of the output signal,
The motor stops at 52 ₂ ... And the moving shelves 12, 13 ₁ , 13 ₂
.. Are stopped.

[0035] During operation detecting circuit 51 _1, 51 ₂ ... each movable shelf 12, 13 _1, 13 ₂ operated during operation signal by detecting that the moved by motor ... signal generation circuit 42 and outputs to the operating signal generating circuit 42 is a driving signal by the output signal of the operation in the detection circuit 51 _1, 51 during operation signals from ₂ ..., and the total command detecting circuit 38, 46 _1, 46 ₂ ... open command and passages locking circuit 36, 43 _1, and outputs it to the 43 _2,. Opening command and the passage locking circuit 36, 43 _1, 43 ₂ ...
.. Output a lock signal when the passage width regulating switches 53 ₀ , 53 ₁ , 53 ₂ ... Are turned off while the operation signal is being input from the operation signal generation circuit 42.

Now, the fixed shelf 11 and the movable shelves 12, 13 ₁ ,
13 ₂ ... are in contact with each other by focusing all, when is not formed at all passages between their respective open command and the passage lock circuit 36 opening command switch 54 ₀ of the main control substrate 17
In the case of outputting an open command signal to the rightward instruction circuit 37 on outputs rightward instruction signal rightward command circuit 37 is to the right of the right row command circuit 45 ₁ and the motor control circuit 50 _1, rightward command circuit 45 ₁ outputs a rightward command signal to the right of the right row command circuit 45 ₂ and the motor control circuit 50 _2, similarly rightward instruction of the right the right row command circuit 45 _2, 45 _3, ..., respectively circuit 45 _3, 45 ₄ ..., and a motor control circuit 50 _3, 50
Output the right line command signal to ₄ ...

The motor control circuits 50 ₁ , 50 _2.
Control the motor drives 52 ₁ , 52 _2, ... So that the motors rotate forward and the movable shelves 12, 13 ₁ , 13 ₂ ,. These moving shelves 12, 13 ₁ , 13 ₂ ...
By moving rightward, a passage for working between the fixed shelf 11 and the movable shelf 12 is formed. If this path reaches a predetermined width, opening command and the passage lock circuit 36 passage width adjusting switch 53 ₀ is turned from on to off outputs a lock signal to the motor control circuit 50 ₁ and the left row command circuit 44 _1, a motor the control circuit 50 ₁ the motor drive unit 52 ₁ motor is locked by the lock signal movable rack 12
Is controlled to be restricted. Therefore, the moving shelf 12
₀ open command switch 54 be turned on is immovably constraints.

When a passage is to be formed at another position in this state, the open command switch corresponding to the position at which the passage is to be formed may be turned on. For example, an open command switch ₅₄₁ is pressed when turning on, open command and a passage lock circuit 43 ₁ is open command signal at open command switch ₅₄₁ ON to the left row command circuit 44 ₁ and the right row command circuit 45 ₁ Output. Left row command circuit 44 ₁ does not output the leftward Directive because the lock signal is input is entered open command signal. Rightward instruction circuit 45 ₁ outputs a rightward command signal to the right of the right row command circuit 45 ₂ and the motor control circuit 50 ₂ by an opening command signal, as well the right line command circuits 45 _2, 45 ₃ ...
There outputs the rightward command signal to the right of the right row command circuit 45 _3, 45 ₄ ..., and a motor control circuit 50 _3, 50 ₄ ... respectively.

The motor control circuit 50 _2, 50 ₃ ... movable shelf 13 ₁ each motor driving section 52 _2, 52 _3, ... motor rotating forward, 13 _2, ... are moved to the right Control. The passage for the work during the rightward movement of the moving rack 13 _1, 13 ₂ ... main movable rack 12 and the dispersion moving rack 13 ₁ is formed. If this path reaches a predetermined width, opening command and the passage lock circuit 43 _first passage width adjusting switch 53 ₁ is turned from on to off outputs a lock signal to the motor control circuit 50 ₂ and the left row command circuit 44 _2, the motor control circuit 50 ₂ is movable shelf 13 ₁ is controlled to be constrained to the motor driving section 52 ₂ motor is locked by the lock signal. Therefore, the movable shelf 13 ₁ is restrained from moving even if the open command switch 54 ₁ is turned on.

Thus, the open command switches 54 ₀ , 5
4 _1, 54 ₂ main movable shelf by selectively manipulating ... 12 and dispersion movable shelf 13 _1, 13 ₂ ... selectively move the main movable rack 12 and the distributed movable shelf 13 _1, it is possible to form a passage for working between each of the 13 _2,.

FIG. 17 shows a main routine of the controller 19. The controller 19 performs initial settings when the power is turned on, and performs input processing. In this case, the controller 19 controls the distributed control boards 18, 22 ₁ and 22 _{2 in the} input processing.
.. And the respective mobile shelves 12, 1 inputted through the interface circuits 21, 23 ₁ , 23 _2.
3 ₁ , 13 ₂ ... operation information, abnormality information, failure information, etc.
That is, the power supply voltage from each of the distributed control boards 18, 22 ₁ , 22 ₂ ..., The motor overcurrent, the double command detection circuit 47 ₁ ,
47 ₂ ··· output signal, stop limit detection circuit 49 ₁ , 4
9 ₂ ... incorporation of output signals, also, the main control board 17
Operating information and abnormal information, failure information, etc.
It takes in the power supply voltage, the output signal of the double command detection circuit 39, the output signal of the all stop command circuit 41, and the like.

Next, the controller 19 performs a self-diagnosis. If there is an error, the controller 19 calls a self-diagnosis error screen on the electronic display unit 16 to display the error. It is determined whether or not there is a failure at 12, 13 ₁ , 13 ₂ . If there is a failure, the controller 19 calls the failure display screen 34 on the electronic display unit 16 to display the failure, and if there is no failure, the electronic display unit 1 is activated when the electric movable shelf system is started before operation.
In step 6, the startup screen is called for a predetermined time, for example, 10 seconds.

The controller 19 determines whether or not the power is turned on based on the information of the power supply voltage taken in the input processing during the operation of the electric movable shelf system.
6 displays a message to that effect. Controller 1
Reference numeral 9 indicates that when the power is turned on, the presence or absence of an abnormality is checked based on the information taken in the input processing, and if there is an abnormality, the electronic display unit 16 calls the abnormality display screen 32 to display the abnormality. If there is no abnormality, the operation status display screen 31 as shown in FIG. 12 is called to display the operation status of the electric movable shelf system.

The electronic display unit 16 is of a touch panel type in which a touch switch displayed on the display screen is operated by an operator to input an operation signal to the controller 19, and an operation status display screen 31
Then, as shown in FIG. 12, a "manual" touch switch 56 and a "system" touch switch 57 are displayed.
The electronic display unit 16 has a specification capable of executing a screen program, so that the processing load on the controller 19 can be reduced and the screen design can be freely changed according to the user's desire.

The controller 19 operates the "manual" touch switch 56 to input an operation signal to display the manual display screen 39 for explaining the operation of the electric movable shelf system in the electronic display unit 1.
6, and the monitor switch setting screen 38 is called on the electronic display unit 16 by operating the touch switch 57 of the “system” and inputting the operation signal. The monitor condition setting screen 38 has a plurality of touch switches for setting monitor conditions.
Reference numeral 9 designates a monitor condition set according to the operation signal by operating a touch switch on the monitor condition setting screen 38 and inputting the operation signal.

Similarly, the controller 19 operates each touch switch on each of the display screens 34 to 36, 32, and 33 of the electronic display 16 and inputs an operation signal to change the screen lower or higher than the display screen. Call the electronic display 16. That is, the controller 19
Switches the display screens 34 to 36 from the upper screen to the lower screen or from the lower screen to the upper screen in response to the operation of the touch switch in an interactive manner.
Is switched according to the operation of the touch switch.

The present invention can be similarly applied to a heavy-duty electric moving shelf system. In an example of a heavy-duty electric moving shelf system to which the present invention is applied, as shown in FIG.
a, the main moving shelf 12a, and a plurality of distributed moving shelves 13a ₁ , 13
a ₂ ... are arranged in a line. The fixed shelf 11a is fixed to the leftmost position, and includes a main moving shelf 12a and a distributed moving shelf 13a.
_1, 13a ₂ ··· is movable from fixed shelf 11a on the right side. The main movable rack 12a is a main control panel 14a is incorporated, dispersed movable shelf 13a _1, 13a ₂ ··· a plurality of distributed control boards 15a _1, 15a ₂ · · · are respectively individually incorporated. Further, an electronic display 16a, which is a component of the monitoring device, is attached to the main moving shelf 12a.

[0048]

As described above, according to the first aspect of the present invention, the plurality of movable shelves are selectively moved by the control panel in response to an open command from the operation unit, and selectively moved between the movable shelves. In an electric moving shelf system for forming a passage, a serial communication circuit comprising two transmission lines for transmitting information on operating conditions, abnormalities, and failures from a plurality of other moving shelves to a predetermined main moving shelf; Operating state of the mobile shelf system, a touch panel type display unit that displays information on abnormalities and failures by graphics or characters, and the other mobile shelves installed on the main mobile shelf and transmitted by the serial communication circuit. The information of the operation status, abnormality and failure and the information of the operation status, abnormality and failure of the main moving shelf are grasped and these information are automatically displayed on the display unit. The graphic or character interactively in response to an input signal from the touch switch of Rutotomoni the display unit to be displayed on the display unit, and determine the presence or absence of an error by performing a self-diagnosis
And a controller for causing the display unit to display an error upon being turned off, so that the operator can know the operating status of the moving shelf, information on the abnormality and the failure from the display unit 2, and The corresponding method can be displayed and notified in an interactive manner, and even an unskilled worker can work safely, efficiently and reliably. Further, the recovery time of the abnormality can be reduced, and the operation rate can be increased. In addition, by adopting a serial communication circuit as a communication means and connecting each mobile shelf with two transmission lines, all electric signals including the operating status, abnormalities and failures of each mobile shelf are transmitted to the controller in real time. It is possible to provide a stable, economical and noise-free transmission means. In addition, the controller uses a microprocessor to determine the operation status, abnormality, and failure information of each mobile shelf, and it is possible to determine the method of displaying the information in graphic or text according to the content by software. Changes and additions can be made relatively freely only by changing the software. Further, the screen of the display unit is divided into a screen which is set to a necessary minimum size and automatically displays the display contents to the operator, and a screen which is displayed as required by the operator (according to the operator's intention). Is possible,
It is possible to reduce the cost by increasing the utilization effect. In addition, the controller performs self-diagnosis and
Judgment is made and an error is displayed on the display unit.
The display unit to check for errors.
It is effective at the time of equipment installation (at the time of assembly).
If there are dozens of mobile shelves of the same type in
Wiring mistakes that occur in the field can be found immediately,
The installation time can be greatly reduced.

[0049]

[0050]

[Brief description of the drawings]

FIG. 1 is a block diagram showing the first embodiment of the present invention.

FIG. 2 is a rear view showing an example of an electric moving shelf system to which the present invention is applied.

FIG. 3 is a block diagram showing a circuit configuration of the electric moving shelf system.

FIG. 4 is a block diagram showing a part of the electric moving shelf system.

FIG. 5 is a block diagram showing a part of another example of the electric moving shelf system to which the present invention is applied.

FIG. 6 is a block diagram showing a circuit configuration of the electric moving shelf system.

FIG. 7 is a block diagram showing an interface circuit of the electric moving shelf system.

FIG. 8 is a block diagram showing a communication control circuit of the electric moving shelf system.

FIG. 9 is a timing chart of the electric moving shelf system.

FIG. 10 is a timing chart of the electric moving shelf system.

FIG. 11 is a diagram showing each display screen of an electronic display unit in the electric moving shelf system.

FIG. 12 is a diagram showing an example of an operation status display screen of the electronic display unit.

FIG. 13 is a diagram showing an example of an abnormality display screen of the electronic display unit.

FIG. 14 is a view showing a failure report screen of the electronic display unit.

FIG. 15 is a view showing a failure data display screen of the electronic display unit.

FIG. 16 is a block diagram showing a configuration of a main control board and a distributed control board of the electric moving shelf system.

FIG. 17 is a flowchart showing a processing flow of a controller in the electric moving shelf system.

FIG. 18 is a rear view showing another example of the electric moving shelf system to which the present invention is applied.

[Explanation of symbols]

1 serial communication circuit 2 display unit 3 controller

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Masanobu Fujimoto 3-8-1, Kamimakumamoto, Kumamoto City, Kumamoto Prefecture, Kongo Corporation (56) References JP-A-62-229408 (JP, A) JP-A-1-149189 (JP, A) JP-A-3-270916 (JP, A) JP-A-1-240905 (JP, A) JP-A-59-125244 (JP, U)

Claims (1)

(57) [Claims] An electric moving shelf system in which a plurality of moving shelves are selectively moved by a control panel in response to an open command from an operation section to selectively form a passage between the moving shelves. A serial communication circuit consisting of two transmission lines for transmitting information on operating conditions, abnormalities, and failures from a plurality of other movable shelves to the movable shelf, and information on the operating conditions, abnormalities, and failures of the electric movable shelf system. A display unit of a touch panel type for displaying by a graphic or a character, operating status, abnormality and failure information of the other plurality of moving shelves installed on the main moving shelf and transmitted by the serial communication circuit, and the main moving shelf Of the operation status, abnormalities and failures, and automatically displays the information on the display unit, and touches the display unit. Interactively in response to an input signal from the switch by the graphic or text is displayed on the display unit, and performs a self-diagnostic error
The presence or absence of an error and display an error to the display unit.
A monitoring device for an electric moving shelf system, comprising: a controller for displaying .