JPH0821929B2 - Portable terminal data transmission device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable terminal data transmission device that is used indoors in offices, shops, etc., or is carried around by a diplomat involved in finance or transportation.

2. Description of the Related Art Conventionally, a mobile terminal system of this type is 4 to at most.
The system consists of five mobile terminals, one collection / distribution device and one data management device using a personal computer, and data transmission between the mobile terminal and the data management device. And receiving. Also, programs and master files used in mobile terminals are transmitted and received in the same procedure. FIG. 3 shows an example of this, where A is a data management device, C is a concentrator / distributor, and E ₁
~E _n indicates the mobile terminal. Further, B is a data management device A
Is a transmission line that connects the distribution device C with
An RS-232C interface is used. D ₁ to D _n in the transmission line connecting the mobile terminal E ₁ to E _n with the current distribution device C, and methods conforming to the often RS-232C interface is used.

When data is transmitted / received from the data management device A to the portable terminal E ₁ , the following method is used.

First, the data management device A issues a command command to the concentrator / distributor C to select the transmission path to the mobile terminal E ₁ . The concentrator / distributor C sets the corresponding transmission path D ₁ among the transmission paths D _{1 to} D _n for the mobile terminal to the active state, and sets the other transmission paths to the stationary state for transmission with the target mobile terminal E _1. Secure a path. After that, the data management device A and the mobile terminal E ₁ send and receive data through the transmission lines B and D ₁ .

Next, the data management apparatus A issues a command instruction to select a channel of the mobile terminal E ₂ addressed relative current distribution device C, similarly ensure transmission path D ₂ with respect to the portable terminal E ₂ or less Then send and receive data. After that, a transmission path is secured and data is transmitted / received to / from the connected mobile terminals one after another.

When transmitting data to all mobile terminals E ₁ to E _n connected from the data management device A according to the following methods.

First, the data management apparatus A command instruction to open the transmission path of all of the mobile terminal E ₁ to E _n addressed relative current distribution device C. The concentrator / delivery device C is a transmission line D ₁
All of ~ D _n are made active. Then, the data management apparatus A performs transmission of data to all of the mobile terminal E ₁ to E _n.
In this case, the data transmission toward the data management device A to the mobile terminal E ₁ to E _n can be, data transmission toward the data management apparatus A from the mobile terminal E ₁ to E _n, the transmission Road D ₁
Since all of ~ D _n are in the active state, data interference occurs and it becomes impossible.

Problems to be Solved by the Invention The above conventional method has the following problems.

The transmission method on the side of the data management device A is often the RS-232C interface, there is a certain limit to the amount of communication data, the maximum is about 9600 BPS, and only about 960 bytes per second can be transmitted, and a large amount of data can be transmitted. When the transmission and reception are performed, the processing time becomes long, and as the number of mobile terminals to be connected increases, the processing time increases in proportion to that, which is not practical.

To compensate for the above drawbacks, data common to each mobile terminal, such as programs and master data, activates all of the transmission channels D _{1 to} D ₂ of the concentrator and transmits them by broadcast communication to save time. However, the data is not transmitted by the simultaneous broadcast communication alone, and the data management device cannot determine whether or not each mobile terminal has correctly received the data. Also, when all of the transmission paths D _{1 to} D ₂ are in the active state, even if each mobile terminal tries to send back the reception result to the data management device, the transmission data between the mobile terminals cannot be synchronized and the reply data is not sent. I am unable to reply properly because of interference.

Further, if the data transmission to a plurality of mobile terminals is controlled by switching the transmission path ON and OFF, the configuration becomes complicated and the cost becomes high.

The present invention solves such a conventional problem, and an object of the present invention is to provide an excellent data transmission device capable of arbitrarily performing simultaneous broadcast communication and subsequent individual communication.

Means for Solving the Problems In order to achieve the above object, the present invention provides a portable terminal data transmission device, a portable terminal having a common number and an individual number, and a transmission path between the portable terminal and the portable terminal. When the data is sent and received between the data collection and distribution device that sends and receives the data, and the data is broadcast to the mobile terminals, a common number is added to the data. When transmitting and performing individual selection communication, the individual number of the mobile terminal is transmitted together with the above data, and when these transmissions are completed, the individual number is transmitted to the mobile terminal that has transmitted and an inquiry message is transmitted. A data management device that determines that the mobile terminal has received the data when a response message is received from the mobile terminal.

The present invention has the above-mentioned configuration, and when the transmission data is common to each mobile terminal, the data management device incorporates the numbers for all the mobile terminals into the message, thereby making Data can be transmitted at the same time, and the transmission can be completed to all the mobile terminals in the transmission time for one mobile terminal according to the conventional method. After completion of this transmission, the number unique to each mobile terminal can be incorporated in the message, and the reception result on the mobile terminal side for the simultaneous broadcast communication can be individually confirmed by the data management device for each mobile terminal. Further, when the transmission data is unique to the mobile terminal, the data management device can incorporate the unique number of the target mobile terminal in the message and transmit the data only to the target mobile terminal. The mobile terminal takes in the following message after receiving its own number, and other mobile terminals skip the following message due to the number mismatch.

Embodiment FIG. 1 shows an embodiment of one embodiment of the present invention.
Two data collection devices are connected to two collection and distribution devices, and each collection and distribution device is further connected to one or more mobile terminals. That is, in FIG. 1, F represents a data management device, H ₁ and H ₂ represent collection and distribution devices, and K _{1 to} K _n and L _{1 to} L _n represent mobile terminals. Data management apparatus F is connected to the current distribution device H ₁ by the transmission line G _1, is connected to the collector delivery device H ₂ by a transmission path G ₂ for connecting the further concentrator H ₁ and H _2. These transmission lines G ₁ and G ₂ are of RS-232C interface system. Moreover, current delivery device H ₁ transmission line I ₁ mobile terminal by ~I _n machine K ₁
~ K _n, and similarly, the concentrator / distributor H ₂ is connected to the mobile terminals L _{1 to} L _n by the transmission lines J _{1 to} J _n . These transmission lines I ₁
~ I _n and J _{1 to} J _n are based on the RS-232C interface. The transmission lines I _{1 to} I _n and J _{1 to} J _n are always active.

 Next, the operation of the above embodiment will be described.

From the data management device F to the mobile terminals K _{1 to} K _n and L _{1 to} L _n
When transmitting the common data to the mobile terminal, the data management device F assigns a common number to all the mobile terminals K _{1 to} K _n and L _{1 to} L _n and transmits the data. Data passing through transmission line G ₁ is a collection and distribution device
Reach H ₁ . Further, the data also reaches the concentrator / distributor H ₂ through the transmission line G ₂ . Each concentrator H _1, H ₂ is the active state transmission path I ₁ ~I _n and J ₁ through J _n for the mobile terminal, the data is all mobile terminals K ₁ ~K _n and immediately It is transmitted to L _{1 to} L _n . In this way, the data common to the mobile terminals are simultaneously transmitted, and when viewed from the data management device F,
Regardless of the number of connected mobile terminals, data can be transmitted to all mobile terminals in the same processing time as the transmission time for one mobile terminal. The reliability of the system can be improved by confirming whether or not the common data is correctly received by the mobile terminals K _{1 to} K _n and L _{1 to} L _n . According to the present invention, after transmitting the common data, the data management device F can confirm the transmission by transmitting the inquiry message attached to the number of each individual mobile terminal. For example, mobile terminal
In the case of an inquiry to K ₁ , the data management device F sends an inquiry message with the individual number of the mobile terminal K ₁ .
The data that has passed through the transmission path G ₁ reaches the concentrator / distributor H ₁ . Further, the data also reaches the concentrator / distributor H ₂ through the transmission line G ₂ . Each concentrator H _1, H ₂ are transmission lines I ₁ ~I _n and J ₁ for the portable terminal
Since ~ J _n is in the active state, the above data is immediately transmitted to all the mobile terminals K _{1 to} K _n and L _{1 to} L _n . But this time, because the individual number is attached to the message,
The mobile terminal K ₁ determines that the data should be received by itself, and takes in the following data. On the other hand, mobile terminals other than K ₁
Since the number in the message is different from my own number, skip the data that follows. In this way, the inquiry message to K ₁ selectively sent by the data management device F reaches the target mobile terminal K ₁ . In the mobile terminal K ₁ , the reception result of the common data can be returned as a message to the data management device F, and the inquiry from the data management device F can be answered.

Hereinafter, similarly, the data management device F will display the mobile terminals K _{2 to} K _n.
In addition, the inquiry message can be transmitted to L _{1 to} L _n in order and the reception result of the common data can be returned.

FIG. 2 is a flowchart of the data transmission / reception operation of the embodiment of the present invention. Step 31 is an initialization process, in which the data management device F is initialized. Step 32 is a common data creation process, which creates common data to be transmitted to the mobile terminals K _{1 to} K _n and L _{1 to} L _n . In step 33, a common number is set to the common data and a common number is set to each mobile terminal. Step 34 is a broadcast communication process, in which the data created in steps 32 and 33 is transmitted. Step 35 is a process of determining whether or not all common data has been transmitted. If not completed, the process is repeated from step 34. When the processing is completed, the process moves to the inquiry message preparation process for each mobile terminal in step 36, and the step for confirming the simultaneous broadcast communication in step 34 is entered. In step 36, the number is given to each mobile terminal. Step 37 is a process of transmitting the data created in step 36, and step 38 is a step
This is a response reception process for the transmitted message of 37, and step 38
Thus, the data management device can determine whether or not each mobile terminal has correctly received the data. Step 39 is a process for judging whether or not the inquiry message has been transmitted to all the mobile terminals, and if not completed, it is repeated from step 37. Only when the step 39 is completed, the series of data transmission / reception starting from the step 32 is completed.

EFFECTS OF THE INVENTION As is apparent from the above embodiment, the present invention transmits a common number together with the above data when simultaneously broadcasting data to mobile terminals, and when performing individual selection communication, the mobile terminal together with the data. By sending the individual numbers, and when these transmissions are completed, the individual numbers are sent to the sending mobile terminals and the inquiry message is sent, so that whether the mobile terminals actually receive the data or not on the data management device side. Since it is possible to check whether or not it is possible to send and receive common data and individual data for each mobile terminal,
Even if there are a plurality of types of mobile terminals, there is an effect that data transmission can be performed reliably without affecting other mobile terminals.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a flow chart showing the operation of the same embodiment, and FIG. 3 is a block diagram showing an apparatus of a conventional example. F ...... data management apparatus, G _1, G ₂ ...... transmission line, H _1, H ₂ ......
Collecting and delivering device, I _{1 to} I _n , J _{1 to} J _n ... Transmission line, K _{1 to} K _n , L ₁ to
L _n …… Mobile terminal.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Internal reference number FI Technical indication location G06F 17/60 G06F 15/21 310 Z 15/74 340 B (56) References JP-A-55- 143651 (JP, A) JP 61-73453 (JP, A) JP 61-214832 (JP, A)

Claims (1)

[Claims] 1. A portable terminal having a common number and an individual number, and a concentrator / distributor for transmitting / receiving data by keeping a transmission path between the portable terminal and the portable terminal constantly active. When sending data to the above-mentioned mobile terminals simultaneously, the common number is sent together with the above data, and when performing individual selective communication, the individual number of the above-mentioned mobile terminal is sent together with the above data. When these transmissions are completed, an individual number is transmitted to the mobile terminal device that has transmitted and an inquiry message is transmitted, and when a response message is received from the mobile terminal device, it is determined that the mobile terminal device has received the data. A mobile terminal data transmission device comprising a data management device.