JPH08157200A - Information transmitting-receiving system - Google Patents

Abstract

PURPOSE: To improve the working efficiency by preventing a delay of work performed on the basis of transmitted information from a master station. CONSTITUTION: An information transmitting-receiving system is provided with a fixed slave station 2 to transmit demand information, a master station 1 to transmit work indicating information on the basis of respective demand informations after successively receiving the demand information transmitted from its fixed slave station 2 and mobile slave stations 5 and 6 mounted on cargo handling work vehicles so as to receive and output the work indicating information transmitted from its master station 1. A transmitting information preferential degree setting means is also provided to set transmission preferential order of various informations to be transmitted to the fixed slave station 2 and the mobile slave stations 5 and 6 from the master station 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile slave station mounted on a cargo handling vehicle such as a forklift, a terminal such as a fixed slave station for requesting the payout of parts, and a request for the payout of parts from the fixed slave station. The present invention relates to an information transmission / reception system in which a main station that gives a work instruction to a mobile slave station mounted on a cargo handling vehicle is connected online.

[0002]

2. Description of the Related Art Conventionally, a mobile slave station mounted on a cargo handling vehicle such as a forklift, a terminal such as a fixed slave station for requesting the delivery of parts and the like, and a cargo handling in response to a part delivery request from the fixed slave station. There is an information transmission / reception system as shown in FIG. 2 in which a main station which gives a work instruction to a mobile slave station mounted on a vehicle is connected online. As shown in FIG. 2, the control center has a host computer 1A and an online network.
A main station 1 having a network controller 1B for controlling the network is installed.

On the other hand, a stationary slave station 2 is provided near a production line (not shown). Further, mobile slave stations 5 and 6 are mounted on cargo handling vehicles 3 and 4 such as forklifts. Since the main station 1 and the fixed slave station 2 communicate with each other by radio waves, the main station 1 is connected to the wireless modem 1M, and the fixed slave station 2 is equipped with the wireless modem 2M. The mobile slave stations 5 and 6 mounted on the cargo handling vehicles 3 and 4 such as forklifts are provided with wireless modems 5M and 6M. With this configuration, the wireless modem 1 is provided between the main station 1 and the fixed slave station 2.
Communication is performed between the M and the wireless modem 2M via radio waves.
On the other hand, the main station 1 and the mobile slave stations 5 and 6 communicate with each other via radio waves between the wireless modem 1M and the wireless modems 5M and 6M.

In the following description, the wireless modems 1M, 2
The description of the communication path via radio waves between M, 5M, and 6M will be omitted, and description will be made directly as information communication between the main station 1, the fixed slave station 2, and the mobile slave stations 5 and 6.

In the information transmission / reception system configured as described above, when a worker makes a request for paying out the necessary parts for a production line or the like, the code number of the parts is operated by operating the operation part of the stationary slave station 2. The payout request information such as the number of coins, the number of payout lines, and the payout line name is transmitted from the fixed slave station 2 and received by the main station 1. The main station 1 sequentially receives the payout request information from the fixed slave station 2.

On the other hand, immediately after the mobile slave stations 5, 6 of the cargo handling vehicles 3, 4 are turned on, the employee N who operates the cargo handling vehicles 3, 4
Registration request information for requesting O registration is mobile slave stations 5, 6
Is transmitted to the main station 1. Upon receiving this registration request information, the main station 1 registers the employee No. and then transmits registration reply information indicating that the mobile slave stations 5 and 6 have registered.

The main station 1 transmits work instruction information based on the payout request information from the fixed slave station 2 to the mobile slave stations 5 and 6. Upon receiving the work instruction information, the mobile slave stations 5 and 6 display the work instruction information on the screens 5D and 6D. The workers of the cargo handling vehicles 3 and 4 visually check the work instruction information displayed on the screens 5D and 6D, select the work to be in charge of themselves, and select the work permission request information from each mobile slave station. 5 and 6 are transmitted to the main station 1.

When the main station 1 receives the work selection permission request information transmitted from the respective mobile slave stations 5 and 6, the same work selection permission request information is transmitted from a plurality of mobile slave stations 5 and 6. If not, while sending the selection permission information,
When the selection permission request information of the same work is transmitted from a plurality of mobile slave stations 5 and 6, the selection non-permission information is transmitted to the mobile slave stations other than the selection permission request information that was initially accepted.

The selection permission information from the main station 1 is transferred to the mobile slave station 5,
When 6 receives, the worker drives the cargo handling vehicles 3 and 4 and, after performing the permitted payout work, moves the mobile slave stations 5 and 6.
Sends the work completion information to the master station 1. And the main station 1
Sends work result information indicating that the work has been completed to the fixed slave station 2 that has issued the payout request.

[0010]

As described above, in the conventional information transmitting / receiving system, the main station 1 sequentially receives various request information transmitted from the fixed slave station 2 and the mobile slave stations 5 and 6. , Various kinds of information based on the request information are transmitted in the order of reception. However, if the transmission / reception information is congested, for example, the employee number who operates the above-mentioned cargo handling vehicles 3 and 4
The registration reply information from the main station 1 with respect to the registration request information requesting the registration is delayed, and the work efficiency is reduced. That is, since various information based on the request information is transmitted in the order of reception as described above, the employee No. When the reception of registration request information is new, it waits for transmission until the information for other request information whose reception is old is transmitted, and during this time, the employee No. No registration takes place. And employee No. This is because the work cannot be done unless is registered. Therefore, in the present invention, by prioritizing the transmission information from the main station with respect to various request information and transmitting the various information in the order of high priority, it is possible to prevent the delay of the work performed based on the transmission information. However, increasing the work efficiency is a technical problem to be solved.

[0011]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention receives a plurality of terminals transmitting request information and request information from each of the terminals, In the information transmitting / receiving system according to the first aspect of the present invention, comprising: a main station that transmits various pieces of information based on the request information to the respective terminals that have transmitted the request information, It is to be provided with a transmission information priority setting means for transmitting various kinds of information in descending order of priority when transmitting the information.

Further, a fixed slave station which transmits request information, a main station which sequentially receives the request information transmitted from the fixed slave station, and transmits work instruction information based on each request information, and a main station In the information transmission / reception system of the second invention including a mobile slave station mounted on a cargo handling vehicle, which receives and outputs the work instruction information transmitted from the main station, in the mobile slave station and the fixed slave station from the main station. The transmission information priority setting means for setting the transmission priority order of various information to be transmitted to

[0013]

According to the first aspect of the present invention, when transmitting various information from the master station in response to request information from each terminal, the transmission information priority setting means selects the information with the highest priority. Send it.

According to the second aspect of the invention, when various information is transmitted from the main station to the mobile slave station and the fixed slave station, the transmission information priority setting means causes the information having higher priority to be transmitted.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to FIG. FIG. 1 is a system diagram showing the overall configuration of the information transmitting / receiving system. Since the hardware configuration of the information transmitting / receiving system shown in FIG. 1 is the same as the hardware configuration of the conventional information transmitting / receiving system, the same reference numerals as those in FIG. -Avoid duplicating the explanation of the basic structure. Actually, the wireless modem 1
Information is transmitted and received via radio waves between M, 2M, 5M and 6M. In the following description, the wireless modems 1M, 2M and 5M are used.
A description of the information transmission / reception system between the main station 1, the fixed slave station 2, and the mobile slave stations 5 and 6 will be directly given, omitting the explanation via the radio wave between M and 6M.

In an information transmission / reception system having a hard configuration as shown in FIG. 1, when an operator requests the delivery of parts required for a production line or the like, the parts are operated by operating the operation unit of the stationary station 2. The payout request information such as the code number, the number, and the payout line name is transmitted from the fixed slave station 2 and received by the main station 1. The main station 1 sequentially receives the payout request information from the fixed slave station 2.

On the other hand, in the cargo-handling vehicles 3 and 4, immediately after the power source of the mobile slave stations 5 and 6 is turned on, a predetermined operation is performed.
Registration request information for requesting the employee NO registration for operating the cargo handling vehicles 3, 4 is transmitted from the mobile slave stations 5, 6 to the main station 1. When the main station 1 receives this registration request information, after registering the employee No., each mobile slave station 5, 6
The registration reply information indicating that the registration has been made is transmitted.

After that, the main station 1 sends work instruction information based on the payout request information from the fixed slave station 2 to the mobile slave stations 5 and 6.
Send to. Upon receiving the work instruction information, the mobile slave stations 5 and 6 display the work instruction information on the screens 5D and 6D. The workers of the cargo handling vehicles 3 and 4 visually check the work instruction information displayed on the screens 5D and 6D, select the work to be in charge of themselves, and select the work permission request information from each mobile slave station. 5 and 6 are transmitted to the main station 1.

When the main station 1 receives the work selection permission request information transmitted from each of the mobile slave stations 5 and 6, the selection permission request information of the same work is transmitted from the plurality of mobile slave stations 5 and 6. If no selection permission request information of the same work is transmitted from a plurality of mobile slave stations 5 and 6, the selection permission information is transmitted to the mobile slave station other than the first mobile slave station accepted first. And transmits the selection disapproval information.

The selection permission information from the master station 1 is transferred to the mobile slave station 5,
When 6 receives, the worker drives the cargo handling vehicles 3 and 4 and, after performing the permitted payout work, moves the mobile slave stations 5 and 6.
Sends the work completion information to the master station 1. And the main station 1
Sends work result information indicating that the work has been completed to the fixed slave station 2 that has issued the payout request.

In addition, for example, in the network controller 1B of the main station 1, transmission information priority setting means for setting the priority order of various information transmitted from the main station 1 is constituted by software.

Therefore, when various kinds of information transmitted from the main station 1 increase, the transmission information priority setting means sets the priority order of the transmission information, and then the main station 1 in the set order.
To send information from. Therefore, the work delay is prevented and the work progresses smoothly. In the above embodiment, the priority order of the information set by the transmission information priority setting means is the order of the employee NO registration reply information, the selection permission information, the work instruction information, and the work result information.
In addition, the transmission information priority setting means causes various kinds of information transmitted from the main station 1, for example, when a plurality of work instruction information (similar information) is sequentially transmitted, the transmission information priority setting means causes the transmission in the oldest order,
For example, when different types of information such as the employee NO registration reply information and the selection permission information are transmitted, the transmission order is set according to the set transmission priority order.

The configurations described above are not limited to the present embodiment, and other configurations may be used without departing from the spirit of the invention, as long as the same operation can be obtained. For example, the output means for outputting the information received by the mobile slave stations 5 and 6 to the worker is not limited to the screens 5D and 6D, and may be print paper by a printer or may be voice. . By the way, in the present embodiment, the case where the work content is a request for paying out the product at the production site has been described, but the configuration of the present invention can be applied to other work content, for example, a distribution warehouse. It is conceivable to put in and out the work in Further, in this embodiment, the case where the operator operates the forklift has been described.
The invention is not limited to this, and may be applied to an automated guided vehicle, for example. In this case, the work performed by the worker in the above embodiment is replaced by the automatic control device mounted on the automatic guided vehicle, and all the work is automatically performed.

[0024]

As described above, according to the first aspect of the invention, a plurality of terminals for transmitting request information and request information from each of the terminals are received, and various types of information based on the respective request information are received. In the information transmission / reception system including a main station that transmits the information of the above to each terminal that has transmitted the request information, when the main station transmits the information based on the respective request information, the priority Since the transmission information priority setting means for transmitting various kinds of information from the highest order is provided, it is possible to prevent the delay of the work performed based on each request information and improve the work efficiency. .

According to the second aspect of the invention, the fixed slave station transmitting the request information and the request information transmitted from the fixed slave station are sequentially received, and the work instruction information based on the respective request information is received. In the information transmission / reception system comprising a main station for transmitting and the work instruction information transmitted from the main station and outputting the work instruction information, the mobile station and the mobile station from the main station Since the transmission information priority setting means that sets the transmission priority order of various information to be transmitted to the fixed slave station is provided, it is possible to prevent the delay of the work performed based on each request information and improve the work efficiency. There is an effect.

[Brief description of drawings]

FIG. 1 is a system diagram showing an overall configuration of an embodiment of the present invention.

FIG. 2 is a system diagram showing a configuration of a conventional information transmitting / receiving system.

[Explanation of symbols]

 1 Main Station 2 Fixed Slave Station 3 Cargo Vehicle 4 Cargo Vehicle 5 Mobile Slave Station 6 Mobile Slave Station 5D Screen 6D Screen

Claims (3)

[Claims] 1. A plurality of terminals that transmit request information, and each terminal that receives the request information from the respective terminals and transmits various information based on the respective request information to the request information. In an information transmission / reception system including a main station that transmits to a machine, when the main station transmits the various information based on the request information, the various information is transmitted from the highest priority order. An information transmission / reception system provided with a transmission information priority setting means for performing. 2. A fixed slave station that transmits request information, a main station that sequentially receives the request information transmitted from the fixed slave station, and transmits work instruction information based on each request information, and In an information transmission / reception system including a mobile slave station mounted on a cargo vehicle, which receives and outputs the work instruction information transmitted from the main station, various types of data transmitted from the main station to the mobile slave station and the fixed slave station An information transmission / reception system comprising transmission information priority setting means for setting a transmission priority order of information. 3. A process in which the transmission information priority setting means transmits the information to be transmitted to a mobile slave station and a fixed slave station in the order of older information within the same type and according to the set transmission priority order between different types. The information transmitting / receiving system according to claim 1 or 2, further comprising means.