JP6492233B1 - Goods management system for assembly - Google Patents

Abstract

  The assembly article management system according to the present invention includes a plurality of terminals disposed in each of a plurality of article storage spaces and performing data exchange with the control side device, and a plurality of workers performing operations on the article storage space. A plurality of communication devices worn in the hand and storing unique identifiers are provided. The terminal can communicate with the communication device existing in a predetermined distance range with respect to the opening of the article storage space in which the own station is disposed, and the contents of the work to be performed on the article storage space Execute an instruction operation according to the information, and transmit information obtained by communication to the control side device.

Description

  The present invention instructs the receipt of parts necessary for assembling a product from among the articles stored in the article storage space such as a storage rack, and also instructs the necessary supply to the article storage space which is out of stock. The present invention relates to an article management system for assembly.

  As a typical example of the assembly article management system, there is a picking system widely used in an assembly production process, particularly in a cell production process. The picking system controls an operation of receiving a part necessary for assembling a product from among the articles stored in the storage rack of articles, and conversely, instructing an operation of replenishing the storage rack.

  More specifically, a terminal provided with a display unit (a lamp, a display, etc.) indicating that the target article is accommodated and an input unit (a lever switch etc.) showing information indicating that the article has been carried out The terminals are arranged on each of a plurality of storage racks, and these terminals are connected to a host computer via a controller. Then, an instruction for picking up parts is sent from the host computer to the control device, and an instruction for work is given by the display means of the terminal for which the instruction for picking up is issued from the control device.

  The terminal's input unit is operated by an operator who has finished picking up or supplying the instructed parts for inputting information indicating the completion of the work, and the information is integrated to the host computer through the control device. . Therefore, various methods have been proposed based on the information to grasp the work progress status, prevent erroneous work, supply articles to the storage space, and manage inventory of parts, order of supply articles, and the like.

  For example, as a method of preventing erroneous work based on the information input from the input unit of the terminal and improving the working accuracy, Japanese Patent No. 5085806 simultaneously instructs to simultaneously receive plural types of parts by one instruction. An article receipt management system has been proposed which can prevent receipt failure and duplicate receipt of articles even when work is interrupted in receipt instructions.

Patent No. 5085806

  However, in the conventional control method based on the information input via the input unit of the terminal, it has been difficult in some cases to issue an appropriate instruction regarding work. For example, since the operation of the input unit is performed after the work is completed, if the input unit is correctly operated despite the erroneous work being performed, it is misidentified as the work being correctly performed. There was a possibility that That is, there was a case where it did not become an appropriate instruction to work properly.

  Therefore, an object of the present invention is to provide an article management system for assembly capable of giving more appropriate instructions to workers who act in accordance with the instructions of the terminal.

The assembly article management system according to the present invention includes a plurality of terminals disposed in each of a plurality of article storage spaces and performing data exchange with the control side device, and a plurality of workers performing operations on the article storage space. A plurality of communication devices worn in the hand and storing unique identifiers are provided. The terminal can communicate with the communication device existing in a predetermined distance range with respect to the opening of the article storage space in which the own station is disposed, and the contents of the work to be performed on the article storage space And execute information corresponding to the time at which the communication was performed, which is obtained by communication, to the control side apparatus.

  In the present invention, the instruction operation performed by the terminal according to the content of the work may be any operation that causes a change in state that can be recognized by the operator, and lighting of a lamp or indicator widely adopted in the prior art Other than turning off, it is possible to appropriately adopt an operation suitable for the use state or the work environment, such as start / stop of the vibration means attached to the worker, output of sound, etc.

  The article management system for assembly according to the present invention may include communication establishment display means for displaying that communication between the terminal and the communication device has been performed.

The terminal is disposed at the opening upper portion of the article storage space, and an auxiliary terminal including an auxiliary display unit connected to the terminal and interlocked with a display portion of the terminal is disposed at both sides of the opening of the article storage space. May be

  The communication device may be one in which different pairs of the unique identifiers are attached to both hands of the worker.

  The terminal may be disposed at the upper opening of the article storage space, and an auxiliary terminal may be disposed on both sides of the opening of the article storage space, the auxiliary terminal being connected to the terminal and having an auxiliary display unit interlocked with the display unit. .

  The auxiliary terminal may include a communication unit that communicates with the communication device.

  The sensitivity level of the terminal in communication with the communication device may be selected from a plurality of settings.

  According to the assembly article management system of the present invention, when there is a communication device within a predetermined distance range from the opening of the article storage space, the contents of the collation confirmation between the terminal and the communication device, the time when the communication was performed, the communication Information obtained by communication, such as data stored by the device, is transmitted from the terminal to the control device. That is, it is possible to obtain information by the operation during the work without depending on the operation of the worker after the completion of the work (the operation of the input unit of the terminal). Therefore, more appropriate instructions can be given based on these pieces of information.

  For example, when working on the article storage space, the fact that the operator brings the hand close to the opening of the article storage space can be grasped by the collation confirmation between the terminal and the communication device, so that information is used, An instruction can be given before the completion of the work as needed.

  In addition, since the unique identifier corresponds to a specific worker who performs a task related to a specific item storage space, the worker can identify necessary parts from the item storage space by specifying a product assembled by the worker. In the process of assembling the taken-out product, the operation of taking out the part from the article storage space (hereinafter referred to as taking-out operation) and the operation of assembling the part (hereinafter referred to as assembling operation) can be associated. Therefore, it is possible to extract a pattern in which the assembling operation is efficiently performed and a pattern which is likely to cause an error in the taking-out operation, and to give more appropriate instructions to the worker who follows the instruction display of the terminal.

  If the communication apparatus has a communication establishment display means for displaying that the communication between the terminal and the communication apparatus has been performed, the control apparatus side grasps that the information is not obtained by the communication, and returns to the normal state. Treatment can be carried out properly. Therefore, it is possible to perform more appropriate instructions with less errors due to communication problems.

  When the control side device has a master station that exchanges data with the control unit and the controller, and the terminal functions as a slave station that exchanges data according to the transmission synchronization method via the transmission line common to the master station, control Control data output from the side device to the terminal based on the information obtained by communication will be delayed by at least one frame cycle of the transmission signal. In such a case, the terminal is provided with instruction content determination means for changing the instruction content to the operator using information obtained by communication, and after information is obtained by communication, from one frame cycle of the transmission signal It is possible to give instructions in a short time.

  If a pair of communication devices having different unique identifiers are to be attached to both hands of the operator, it is possible to give more appropriate instructions by distinguishing the left and right hands. For example, work efficiency can be improved by instructing taking out with the right hand when the assembly work after taking out an article from the article storage space is performed on the right side, and instructing taking out with the left hand when performed on the left side. . Alternatively, when it is possible to use either the left or the right hand, it is possible to prevent health damage due to biased use by giving an instruction to equalize the usage frequency of the left and right hands based on the work history data. Furthermore, by distinguishing between the case where only one hand approaches the opening of the article storage space and the case where both hands approach, it is possible to recognize two types of work patterns and display instructions according to the respective work patterns. become.

  If the terminal is disposed at the upper opening of the article storage space, and an auxiliary terminal provided with an auxiliary display unit connected to the terminal and interlocked with the display unit is disposed on both sides of the opening of the article storage space, the article storage space It is possible to perform instruction display in the form of surrounding the opening of, and it is possible to perform more appropriate instruction.

  When the communication device is attached to both hands of the worker, if the auxiliary terminal includes a communication unit that communicates with the communication device, the communication attached to the left and right of the worker on both sides of the opening of the article storage space Devices can be distinguished and communicated.

  If the sensitivity level of the terminal in communication with the communication device is selected from a plurality of settings, select from a plurality of instruction contents and give more appropriate instructions according to the communication state with the communication device. Is possible. For example, it is assumed that the communicable distance with the communication device of the terminal is selected from a plurality of settings by using the difference in sensitivity level, and the communicable distance is lengthened for the terminal which has not received the information of extraction instruction. A warning can be displayed at an early stage if a person mistakenly attempts to take out.

It is a system configuration figure of an embodiment of an article management system for assembly concerning the present invention. It is a functional block diagram of a parent station. It is a functional block diagram of a terminal. It is a schematic diagram of the transmission procedure in a system. It is a time chart figure of a transmission signal. It is a system configuration figure of other embodiments of the article management system for assembly concerning the present invention. It is a functional block diagram of the terminal in the embodiment.

An embodiment of an article management system for assembly according to the present invention will be described with reference to FIGS.
The article management system for assembly shown in FIG. 1 instructs the receipt of parts necessary for assembling a product from among the articles stored in the article storage space such as a storage rack, and also in the article storage space where the stock is exhausted. It provides necessary supply instructions. A master station 2 connected to a common data signal line DP, DN (hereinafter referred to as a transmission line), a plurality of terminals 4 connected to the transmission line and functioning as slave stations, an auxiliary terminal 6 connected to an adjacent terminal 4 And a plurality of communication devices 7 attached to the hands of a plurality of workers who work on the article storage space and storing the unique identifiers.

  The control unit 1 includes a management determination unit 11 having an arithmetic processing function and an input / output unit 12. The management determination unit 11 receives data from the master station 2 via the input / output unit 12 and performs necessary arithmetic processing based on a program stored therein.

<Master station configuration>
As shown in FIG. 2, the master station 2 includes an output data unit 21, a management data unit 22, a timing generator 23, a master station output unit 24, a master station input unit 25, and an input data unit 26. Then, the control signal which is connected to the transmission line and superposes a series of pulse-like signals on the transmission line, and the monitoring data extracted from the monitoring signal superimposed on the transmission line from the terminal 4 is input / output unit of the control unit 1 Send to 12

  Output data unit 21 delivers the data received from control unit 1 to master station output unit 24 as serial data.

  The management data unit 22 includes a storage unit 29 having a non-volatile function of storing a slave station information table. Then, based on the data received from the control unit 1 and the slave station information table, data necessary for an instruction to the slave station in the management control data area described later is handed over to the master station output unit 24 as serial data.

  The slave station information table includes management control address data for specifying the terminal 4 which causes the transmission line to output information that can not be obtained as monitoring data. In this embodiment, data obtained by adding a type identifier to the head address number which is the address data of the terminal 4 is used as management control address data.

  The timing generation unit 23 comprises an oscillation circuit (OSC) 31 and timing generation means 32. The timing generation means 32 generates a timing clock of this system based on the oscillation circuit (OSC) 31, and Hand over to the station input unit 25.

  The master station output unit 24 comprises control data generating means 33 and a line driver 34. Based on the data received from the output data unit 21 and the timing clock received from the timing generation unit 23, the control data generation unit 33 superimposes transmission signals as a series of pulse-shaped signals on the transmission line via the line driver 34.

  The transmission procedure is one frame cycle following the control / monitoring data area and the management data area between the start signal ST of the transmission signal and the next start signal ST, as shown in FIG. 4, and a plurality of pulse signals are It is composed in series. The start signal ST is longer than the time width of the pulse signal, and has a potential level higher than a threshold Vst (18 V in this embodiment) for generating the transmission clock signal from the transmission signal.

  The pulse signal constituting the transmission signal is, as shown in FIG. 5, formed of a potential level area higher than the threshold Vst (corresponding to the transmission clock signal, +24 V in this embodiment) and a potential level area lower than the threshold Vst. . In this embodiment, the potential level area higher than the threshold Vst is in the second half of one cycle and the potential level area lower than the threshold Vst is in the first half of one cycle, but the order is not limited. May be reversed.

  The pulse width of the potential level area lower than the threshold Vst represents the data of the control signal. The pulse width of the potential level area lower than the threshold Vst constitutes a control data area as control data, and the control data area corresponds to the upper stage of the control / monitoring data area in FIG.

  In this embodiment, when one cycle of the pulse signal forming the transmission signal is t0, the pulse width (3/4) t0 of the pulse signal forming the transmission signal represents logic data "0", and the pulse width (1) / 4) t0 represents logical data "1". However, as long as it corresponds to the value of the control data input from the control unit 1, the length is not limited and may be determined appropriately.

  In the transmission data signal, data of the monitoring signal is represented depending on whether the current superimposed on the potential level area lower than the threshold Vst is larger or smaller than a predetermined value. Then, the current value superimposed on the potential level area lower than the threshold Vst constitutes a monitoring data area as monitoring data, and the monitoring data area corresponds to the lower part of the control / monitoring data area in FIG. There is.

  In this embodiment, a current signal less than 10 mA represents logic data "0" and a current signal greater than 10 mA represents logic data "1".

  After the control / monitoring data area, as shown in FIG. 4, a management data area is provided. In FIG. 4, the upper part shows an area where data is output from the master station 2 (hereinafter referred to as management control data area), and the lower part shows an area where data is input to the master station 2 (hereinafter called management supervision data area). Yes).

  In the management control data area, a first management control data ISTo for instructing the terminal 4 to request information etc. and a second management control data IDXo for specifying a slave station address are superimposed from the master station 2 Ru. Further, in the management monitoring data area, first management monitoring data STi and second management monitoring data IDXi corresponding to the first management control data ISTo from the terminal 4 designated by the second management control data IDXo are superimposed.

  The parent station input unit 25 is composed of a monitor signal detection unit 35 and a monitor data extraction unit 36. The supervisory signal detection means 35 detects the supervisory signal superimposed on the transmission line from the terminal 4.

  As described above, the data of the supervisory signal is represented by whether the current superimposed on the lower potential level than the threshold value Vst is greater or smaller than 10 mA, and after the start signal ST is transmitted, It receives the supervisory signal. Then, the monitoring signal detected by the monitoring signal detection means 35 is delivered to the monitoring data extraction means 36.

  The monitoring data extraction unit 36 extracts the monitoring data and the management monitoring data in synchronization with the timing from the timing generation unit 32, and outputs the monitoring data and the management monitoring data to the input data unit 26 as serial input data.

  The input data unit 26 converts serial input data received from the monitoring data extraction means 36 into parallel (parallel) data, and sends it to the input / output unit 12 of the control unit 1 as monitoring data and management monitoring data.

<Configuration of terminal>
The terminal 4 is disposed at the upper opening of each of the plurality of article storage spaces, as shown in FIG. As shown in FIG. 3, the transmission and reception means 41, management control data extraction means 42, address extraction means 43, address setting means 44, management and monitoring data transmission means 45, control data extraction means 46, unique identifier storage means 47, An instruction content determination unit 48, an output unit 49, a communication data storage unit 50, a communication setting unit 51, an input unit 52, and an input / output unit 40 having a monitoring data transmission unit 53 are provided. The slave station line receiver 54 and the slave station line driver 55 disposed between the input / output unit 40 and the transmission line are also provided. Furthermore, the display unit 56 is provided to perform display for the worker.

  The input slave station 4 of this embodiment includes an MCU, which is a microcomputer control unit, as an internal circuit, and this MCU functions as the slave station input unit 40.

  The operations and storage required in the process are executed using the CPU, RAM and ROM included in this MCU, but the CPU, RAM and ROM in each process of the above-mentioned respective means constituting the input / output unit 40 The relationship is not shown for convenience of explanation.

  The transmission reception means 41 receives the transmission signal transmitted to the transmission line through the slave station line receiver 54, and this is received by the management control data extraction means 42, the address extraction means 43, the management supervisory data transmission means 45, and the control data extraction. Hand over to the means 46.

  The management control data extraction unit 42 transmits data (management control data) of a management control signal for an address matching the management control address obtained by adding an identifier of the own station type to the own station address set by the address setting means 44 Are extracted from the management data area of the pulse signal constituting In this embodiment, from the management control data, the unique identifier of the communication device 7 to be communicated with the local station, that is, the communication device 7 attached to the worker who performs work on the article accommodation space in which the local station is disposed Extract. Then, the extracted data is delivered to and stored in the unique identifier storage means 47. In FIG. 3, for convenience of illustration, illustration of output lines from the address setting unit 44 to the management control data extraction unit 42 is omitted.

  The address extracting means 43 counts pulse signals constituting the transmission signal starting from the timing at which the start signal ST ends (falling in this embodiment). The timing when the count value matches the own station address data set by the address setting means 44 is the timing when the data area allocated to the own station of the transmission signal starts (hereinafter referred to as "the own station area start timing" It becomes).

  The address extraction means 43 that has obtained the local station area start timing passes the timing signal for extracting control data to the control data extraction means 46 and makes the monitoring data transmission means 53 effective during the local station area.

  The management supervisory data transmission means 45 counts pulse signals constituting the transmission signal starting from the timing at which the start signal ST ends (falling in this embodiment), and obtains the timing of the management data area. Then, when the own station address is specified, the data delivered from the communication data storage means 50 is output to the transmission line as a management supervisory signal via the slave station line driver 55. In FIG. 3, for convenience of illustration, the illustration of the output line from the address setting unit 44 to the management and monitoring data transmission unit 45 is omitted.

  The control data extraction means 46 transmits control data values transmitted from the timing signal delivered from the address extraction means 43 and the transmission signal delivered from the transmission reception means 41 to the own station address set in the own station address setting means 44. Are handed over to the instruction content judging means 48 and the communication setting means 51.

  The instruction content determination unit 48 determines the content of the instruction to the worker who performs the work on the article storage space based on the control data value delivered from the control data extraction unit 46 and the input from the communication unit 61 described later. Do. Then, a signal prompting the execution of the determined instruction is output to the output unit 49 and the communication setting unit 51. The details of the content of the instruction will be described later.

  The instruction content determination means 48 also delivers predetermined data related to communication with the communication device 7 to the communication data storage means 50 based on the input from the communication unit 61. In this embodiment, the communication units 61 of the two auxiliary terminals 6 are connected, and one communication unit 61 communicates with the communication device 7 mounted on the left hand of the worker to output the information, and the other communication The unit 61 communicates with the communication device 7 mounted on the right hand of the worker and outputs the information. Then, the data on the left and right hands of the worker are distinguished and handed over to the communication data storage means 50. In FIG. 3, for convenience of illustration, only one of the two auxiliary terminals 6 is shown.

  The output unit 49 causes the display unit 56 to display in a predetermined manner in accordance with the content of the signal output from the instruction content determination unit 48.

  The communication setting means 51 delivers the unique identifier handed over from the unique identifier storage means 47 to the communication unit 61. Also, based on the control data value delivered from the control data extraction means 46, the sensitivity of the communication unit 61 is selected. Although the selection of sensitivity can be appropriately determined in accordance with the operation performed on the article storage space, in this embodiment, the control data value delivered from the control data extraction means 46 is allocated to the local station. When the item storage space is not designated as a work target, the sensitivity is set such that the communicable distance between the communication unit 61 and the communication device 7 becomes long. Then, the communication setting unit 51 which has selected the sensitivity delivers the sensitivity setting data to the communication unit 61.

  The communication setting unit 51 further receives an instruction execution signal for executing an instruction using an instruction unit included in the communication device 7 described later, when the communication content setting unit 51 receives a signal prompting the execution of the instruction from the instruction content determination unit 48. Output to

  The input unit 52 delivers data based on the input from the communication unit 61 to the monitoring data transmission unit 53.

  The monitoring data transmission means 53 outputs the data delivered from the input means 52 as a monitoring signal to the transmission line via the slave station line driver 55 when it is validated by the address extraction means 43.

<Configuration of Auxiliary Terminal>
The auxiliary terminal 6 is disposed on the open side of the plurality of article storage spaces. And it is connected to the terminal 4 arrange | positioned at the opening upper part of the article storage space in which the own station is arrange | positioned. When the side wall of the article storage space in which the auxiliary terminal 6 is disposed partitions the two article storage spaces, it is connected to each of the terminals 4 disposed in the upper opening of both article storage spaces.

The auxiliary terminal 6 includes a communication unit 61 and an auxiliary display unit 62.
The communication unit 61 communicates with the communication device 7 with the sensitivity according to the sensitivity setting data delivered from the communication setting unit 51 of the terminal 4. In communication with the communication device 7, the unique identifier handed over from the unique identifier storage means 47 is transmitted to the communication device 7, and the communication device 7 transmits information indicating the presence or absence of a match of the unique identifier. Then, the communication unit 61 which has obtained the information by communication with the communication device 7 delivers the information to the display determination means 48 and the input means 52 of the terminal 4.

  When the communication unit 61 also receives an instruction execution signal from the communication setting unit 51, the communication unit 61 transmits a signal for urging the communication unit 7 to drive the instruction unit.

  The auxiliary display unit 62 receives the instruction from the output unit 49 of the terminal 4 and displays the same contents as the display unit 56 of the terminal 4.

<Configuration of Communication Device>
The communication device 7 has a communication function with the communication unit 61 of the auxiliary terminal 6, and includes a storage unit for storing a unique identifier, and an instruction unit for giving an instruction by using the tactile sense of the worker's hand. It can be worn on the wrist.

  The unique identifier is different for each of the communication devices 7, and the worker wearing the communication device 7 can identify using the unique identifier. When the communication device 7 is attached to both hands of the worker, it is possible to specify the left hand and the right hand.

  The instruction unit gives the operator a tactile sensation that can be sensed, and in this embodiment, a known vibrator is used. Then, the operator is instructed to use the vibration of the communication device 7 to transmit an operation or an operation to be performed when the communication device 7 generates vibration, by using the vibration of the communication device 7 in advance. .

  Although the content of the instruction | indication performed with respect to a worker can be suitably determined according to the operation | work process using a system, the following instructions can be performed, for example.

<Instructions of work for the article storage space>
A control data value handed over from the control data extraction means 46 of the terminal 4 designates an article storage space in which the own station is disposed as a work target, specifically an object for taking out parts or supplying articles. In the case of representing that, the work instruction to the article storage space by turning on the display unit 56 is executed. If the control data value handed over from the control data extraction means 46 does not designate the article storage space in which the own station is disposed as a work target, the display unit 56 is not lit if it is not lit. Maintain the state, and turn off if it is on.

<Warning for Work on Item Storage Space Not Specified as Work Target>
If the control data value handed over from the control data extraction means 46 does not designate the article storage space in which the own station is located as a work target, if there is an input from the communication unit 61, an instruction provided by the communication device 7 Vibrate parts and execute warning instructions to urge workers to stop their work.

<Warnings for particular tasks>
In the case of an operation that requires particular attention, such as incorrect removal that leads to a serious defect if the order of assembly is incorrect, or parts replenishment, a warning instruction with stronger vibration is performed. In addition, since an operation in which a warning instruction is repeated several times is likely to reproduce an error, the warning instruction with stronger vibration is executed even when the warning instruction reaches a predetermined number of times.

  In this embodiment, vibration is used to execute the warning instruction, but any other method may be adopted as long as it warns the worker. For example, a warning sound may be generated.

  In this embodiment, the instruction unit of the communication device 7 operates in accordance with the content of the instruction received from the terminal 4. However, the communication device 7 may operate based on its own determination. For example, when the information in which the item storage space is designated as the work target is not acquired from the terminal 4, the communication device 7 operates the instruction unit by its own determination when communication with the terminal 4 is performed. You may do it. In this case, the communication device 7 includes means for performing a determination process regarding the operation of the instruction unit.

  In this embodiment, the communication unit 61 is provided corresponding to each of the left and right hands of the worker, but it is also possible to provide one that can communicate with both while distinguishing the left and right hands. . The communication unit 61 may be separate from the auxiliary terminal 6 or may be incorporated in the terminal 4.

  In this embodiment, the terminal 4 includes the display unit 56, but the display unit 56 may be separated from the terminal 4.

  Another embodiment of the assembly item management system according to the present invention will be described with reference to FIGS. 6 and 7. 6 and 7, the same reference numerals are given to the substantially same parts as the embodiment shown in FIGS. 1 to 5, and the explanation will be omitted or simplified.

  The terminal 8 includes an input unit 57 for the operator to operate and input information, and when the operator operates the input unit 57, a signal (for example, an ON signal) accompanying the operation is input to the input unit 52. . A well-known lever switch is adopted for the input unit 57, as long as the operator can operate it and input information, it may be a well-known input device such as a push button or a sensor switch. .

  The management control data extraction means 42 extracts the input mode data of the input means 52 and delivers the extracted data to the input means 52.

  The input unit 52 selects data based on an input from the communication unit 61 obtained as information by communication with the communication device 7 and data based on an input from the input unit 57 according to the input data mode, and the monitoring data transmission unit 53 Hand over.

  According to this embodiment, for example, the following processing can be performed using an input based on communication between the communication device 7 and the communication unit 61 and an input based on the operation of the input unit 57.

<Information input at communication failure>
When there is a communication failure due to a failure of the communication device 7 or other events, the input unit 57 can be used as a means for inputting information indicating the completion of the work instruction to the article storage space.

<Pause of instruction execution operation>
In the case where it is necessary to temporarily stop the instruction execution operation without stopping the system, such as when temporarily suspending assembly work or when performing operation check, it is possible to use the input unit 57 for temporary suspension. In addition, when executing this process, for example, a signal accompanying the operation of the input unit 57 may be input to the instruction content determination unit 48.

1 control unit 2 master station 4, 8 terminal 6 auxiliary terminal 7 communication device 11 management judgment means 12 input / output unit 21 output data unit 22 management data unit 23 timing generator unit 24 master station output unit 25 master station input unit 26 input data unit 29 Memory means 31 Oscillator circuit (OSC)
32 timing generation means 33 control data generation means 34 line driver 35 monitor signal detection means 36 monitor data extraction means 40 input / output unit 41 transmission reception means 42 management control data extraction means 43 address extraction means 44 address setting means 45 management supervisory data transmission means 46 control data extraction means 47 unique identifier storage means 48 instruction content determination means 49 output means 50 communication data storage means 51 communication setting means 52 input means 53 monitor data transmission means 54 slave station line receiver 55 slave station line driver 56 display portion 57 input Unit 61 Communication unit 62 Auxiliary display unit

Claims (7)

A communication device that is attached to each of a plurality of terminals arranged in each of a plurality of article storage spaces and performing data exchange with the control side device, and a plurality of workers who perform operations on the article storage space Equipped with multiple
The terminal can communicate with the communication device existing in a predetermined distance range with respect to the opening of the article storage space in which the own station is disposed, and the terminal can be performed according to the contents of the work to be performed for the article storage space. An assembly management system characterized by executing an instruction operation and transmitting information including the time when communication was performed, obtained by communication, to the control-side device.   The assembly article management system according to claim 1, further comprising communication establishment display means for indicating that communication between the terminal and the communication device has been performed.   The control side device includes a control unit and a master station for exchanging data with the control unit, and the terminal is a slave station for exchanging data by a transmission synchronization method via a transmission line common to the master station. 3. The assembly article management system according to claim 1, further comprising an instruction content determination unit that changes the instruction content for the operator using the information obtained by the communication.   The assembly article management system according to any one of claims 1 to 3, wherein in the communication device, different pairs of the unique identifiers are attached to both hands of the worker. The terminal is disposed at the opening upper portion of the article storage space, and an auxiliary terminal including an auxiliary display unit connected to the terminal and interlocked with a display portion of the terminal is disposed at both sides of the opening of the article storage space. The assembly article management system according to any one of claims 1 to 4.   The assembled article management system according to claim 5, wherein the auxiliary terminal comprises a communication unit that communicates with the communication device.   The assembly item management system according to any one of claims 1 to 6, wherein a sensitivity level of the terminal in communication with the communication device is selected from a plurality of settings.

Images