JPH0758761A - Divided polling system for handy terminal - Google Patents

Abstract

PURPOSE:To provide a divided polling system of a handy terminal in which the high speed of a responding time can be attained, and the number of terminals can be largely increased, in the polling system of the handy terminal in the field of data communications or the like. CONSTITUTION:Plural handy terminals 4 are preliminarily divided into groups. At first, polling is operated to each group from a slave unit 2, and then polling is operated again to the responding group. That is, whether or not the answer from the transmission key input handy terminal 4 to the division polling is present is always monitored at a certain intervals by the slave unit 2, and when the answering is generated, the polling operation of each handy terminal 4 is operated only to each responding group, and data are transmitted by the slave unit side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handy terminal polling method used in fields such as data communication.

[0002]

2. Description of the Related Art The rapid development of data communication and the like in recent years has been remarkable, and the amount of data has been diversified and has been increasing more and more. The conventional polling (process of urging a data station to transmit only one station at a time in a branch connection or a point-to-point connection) was as shown in FIG.

[0003]

In this case, as is clear from FIG. 3, the responsiveness becomes slower in proportion to the number of terminals to be connected, so that the number of terminals that can be connected to one system is inevitably limited. There was a technical problem of being lost. As a result of intensive studies to solve these technical problems, the present invention provides a handy terminal split polling method 1 that not only speeds up the response time but also enables a large increase in the number of terminals. Is intended.

[0004]

[Means for Solving the Problems] A plurality of handy terminals 4 is divided into groups in advance, and each slave group (slave unit) 2 first polls each group, and then the groups that receive a response. Only the method of polling again, that is, the slave unit (slave unit) 2 constantly checks whether or not the transmission key input from the handy terminal is returned to the divided polling at regular intervals, and if there is a response case Is a slave unit (subordinate unit)
The second side is a divided polling method 1 of the handy terminal, which is characterized in that the polling work of the individual handy terminals is performed only for each group that has received a response and the data is transmitted.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A split polling method 1 for a handy terminal according to the present invention will be described in detail below with reference to the accompanying drawings.
FIG. 1A shows the basic configuration of the split polling method 1 of the keyboard / barcode dual handy terminal 4 of the present invention. FIG. 1B is a plan view of a keyboard / barcode dual handy terminal 4 of the present invention. As is apparent from the figure, a plurality of handy terminals 4 are divided into groups in advance, and the slave unit (slave unit) 2 first polls each group,
After that, the system that polls only the groups that responded, that is, whether or not the slave unit (slave unit) 2 is responding to split polling from the transmission key input handy terminal, is constantly checked at regular intervals. If a case occurs, the slave unit (slave unit) 2 side polls the individual handy terminals only for each group that responded, and transmits data by the handy terminal. Split polling method
It is 1 . Specific examples of the basic configuration, basic functions, and basic performance of the keyboard / barcode dual handy terminal 4 of the present invention are summarized in Tables 1, 2, and 3, respectively.

[0006]

[Table 1]

[0007]

[Table 2]

[0008]

[Table 3]

Because of the above-mentioned configuration, it was necessary to see all the handy terminals in the past, but the present invention is partially required, so that the response time can be shortened and the number of handy terminals can be increased. It is the split polling method 1 of the handy terminal that enables a large increase in Figure 1 (c)
Is an embodiment showing a usage state of the keyboard / barcode dual handy terminal 4 of the present invention. As is apparent from the drawings, one embodiment of the use structure of the keyboard / barcode dual handy terminal 4 of the present invention is shown below. Infrared light LED (Light Emitting D)
iode: a light emitting diode) for receiving from the keyboard / barcode dual handy terminal 4 and outputting data to the master unit 1, a slave unit (slave unit) 2 consisting of one or a plurality of units is connected by a cable 3 to the RS.
Each person is connected to a master device 1 such as a personal computer provided to perform 232C communication and the like, and each person has an LCD (Liquid Crystal Diap) registered in advance.
lay: Liquid crystal display device) with keyboard / barcode dual-purpose handy terminal 4 input data contents such as predetermined work, and send it wirelessly to infrared light LED to slave unit 2 at keyboard / barcode dual-use handy terminal 4. Then, data is sent from the slave unit 2 to the master machine 1, and the data is docked with general-purpose spreadsheet software, so that the data is automatically updated by multitask processing each time, and it is visually (visually) displayed by tables and graphs. It is a real-time data management system that features real-time analysis and management.
With the above configuration, the system configuration and response time of the split polling method 1 of the handy terminal according to the present invention are as follows. Number of groups: x 1 Number of terminals in group: y Total number of terminals: z x × y = z 1 cycle of divided polling: A (second / 1000) Normal A <B 1 cycle of normal polling: B (second / 1000) or more Therefore, the minimum intra-time communication method is as follows: x × y = z A × x + B × y + K ₁ = S K ₁ : Other time As an example, 5 groups (division), 60 terminals, total 300
Communication time in case of multiple units Divided polling time: A = 5 (sec / 1000) Normal polling time: B = 10 (sec / 1000) Number of groups Number of terminals (sec / 1000) This method = 5 × 5 + 10 × 60 + K ₁ = 625 + K ₁ unit (sec / 1000) Conventional method = 300 × 10 + K ₁ = 3000 + K ₁ As is clear from this, the response time is shortened to about 1/5 compared to the conventional one, and the speedup is faster. It becomes possible to measure. An example of how to use the keyboard / barcode dual handy terminal 4 of the present invention is as follows. Distribute the keyboard / barcode dual handy terminal 4 to each worker in advance. Each person who distributed the information will enter the business content into the keyboard / barcode dual-purpose handy terminal 4 that has been registered in advance by the person in charge.
Check the data on D. Handy terminal 4 for both keyboard and barcode
Then, the data is optically transmitted to the slave unit 2 using an infrared LED or the like. At the same time as the data is transmitted from the slave unit 2 to the master unit 1, the time when the data is received is registered using the clock in the master. After confirming whether or not the data is abnormal, an OK signal is sent back to the master device 1 → slave unit 2 → keyboard / barcode dual handy terminal 4 . After that, the procedure from to is repeated and the master unit 1 side
It automatically processes the start and end times of work and accumulates data. The input data is automatically updated in real time. The input data can be easily output as tables and graphs by using general-purpose spreadsheet software. Since the master machine 1 side is performing multitask processing, data is automatically updated even during data processing. As described above, the system of the present invention has been conceived from the application of a remote controller and does not require high frequency transmission because it is a system (slave is used) that is not regulated by the Radio Law by using infrared rays. High-speed processing is possible because the transmission speed is not subject to legal restrictions. Excellent noise resistance. Has the advantage. However, unlike the remote control, it is not possible to confirm the switching visually on the TV screen etc. Therefore, it is possible to confirm the transmission bidirectionally with the slave and confirm OK / NG on the handy terminal. ing. The basic software of the real-time data management system of the present invention was originally created to collect and process data. At that time, the actual work time management and production quantity progress management were created by docking with general-purpose spreadsheet software. FIG. 2 shows a production quantity management graph which is an example of a graph obtained by using the keyboard / barcode dual handy terminal 4 of the present invention.

Although the keyboard / barcode dual handy terminal 4 of the present invention has been described as a typical example, the present invention is not limited to this, and an ordinary handy terminal having only a keyboard or only a bar code may be used. or,
Not limited to the work content of the factory, it is possible to develop a wide range of applications such as security for automation of patrol records, restaurants, golf electronic scores, etc., and it goes without saying that various modifications are included within the scope of the present invention by design. Nor.

[0011]

As described above, according to the split polling method 1 of the handy terminal of the present invention, the response time can be shortened. It is possible to significantly increase the number of handy terminals. It is possible to grasp the work situation accurately and in real time. Data processing enables graphing and statistics, and is effective for personal history management, business management, purchasing management, cost management, destination management, etc. It enables a wide range of applications such as security, restaurants, and golf courses. It has great industrial value because of its excellent effect.

[Brief description of drawings]

FIG. 1A is a basic configuration diagram of a split polling method 1 of a keyboard / barcode dual handy terminal 4 of the present invention. (B) is a plan view of a keyboard / barcode dual handy terminal 4 of the present invention. (C) is an embodiment showing a usage state of the keyboard / barcode dual handy terminal 4 of the present invention.

FIG. 2 is a production number management graph which is an example of a graph obtained by using the keyboard / barcode dual handy terminal 4 of the present invention.

FIG. 3 is a basic configuration diagram of a conventional handy terminal 4 ′ polling system 11 ′.

[Explanation of Codes] 1 Basic configuration diagram of the split polling method of the handy terminal of the present invention 1 Master machine (personal computer etc.) 2 Slave unit (slave unit) 3 Cable 4 Keyboard / barcode dual handy terminal 5 LCD display (liquid crystal display element ) 6 keyboard 7 barcode reader 2 'conventional slave unit (slave unit) 4' basic configuration diagram of a conventional handy terminal 11 'a conventional polling system

Claims (1)

[Claims] 1. A method in which a plurality of handy terminals are divided into groups in advance, and a slave unit (slave unit) first polls each group, and then polls only the group for which a response is received. That is, slave unit (slave unit)
It constantly checks whether or not a reply is sent from the hand-held terminal to the split polling at regular intervals, and if a reply occurs, the slave unit (slave unit) side responds with a response. Separated polling method of the handy terminal, characterized in that the polling work of each handy terminal is performed only for each group and data is transmitted.