JP2000209355A - Information communication network and information communication method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To notify warning data high in the degree of urgency immediately by providing an information collection terminal (master station) which is line- connected with one of plural communication terminals (slave stations) and can recognize a call from one slave station except for the slave stations which are line-connected. SOLUTION: A master station 101 dial-calls a terminal number (telephone number) which is individually set in one slave station 102 and is line-connected to the slave station 102. The master station 101 is line-connected to the slave station 102 and it receives data sent from the slave station 102. When warning data D109 is detected in data which are taken in, the slave station 102 gives a line connection request to the master station 101 and transmits data. When prescribed information which is previously set is supplied, the slave station 102 gives the line connection request to the master station 101, thus warning data high in the degree of urgency can be notified immediately.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an information communication network and an information communication method applied to a telemeter device for sending and collecting data to a remote place via a public line network.

[0002]

2. Description of the Related Art In the case of a telemeter that transmits data from a plurality of slave stations to a master station using a public line network, conventionally, when any one of the slave stations reports input alarm data to the master station, the master station transmits the alarm data to the master station. If the station is connected to a line with another slave station or the like, the alarm data cannot be transmitted quickly.

That is, a slave station that reports alarm data only repeatedly transmits a line connection request at a fixed cycle until a line can be connected to the master station, but cannot send alarm data to the master station. For this reason, transmission of alarm data to the host device of the master station is delayed, and alarm output is delayed.

[0004]

The line connection request transmitted repeatedly as described above must be intermittently made at predetermined time intervals due to laws and regulations. For this reason, when a slave station that is to send alarm data is waiting for a line connection request, the master station completes communication with another slave station, disconnects the line, and immediately connects the line to another slave station. If this happens, the slave station reporting the alarm data will continue to repeat the line connection request.

[0005] Therefore, the time required for a slave station reporting alarm data to establish a line connection with the master station was unstable. The present invention has been made under such a background, and an object of the present invention is to provide an information communication network and an information communication method capable of notifying alarm data with a high degree of urgency without delay.

[0006]

According to the first aspect of the present invention, there is provided a communication terminal comprising: a plurality of communication terminals each connected to a communication network to which various information is input; An information collection terminal connected to the communication line network and connected to one of the plurality of communication terminals and capable of recognizing a call from one communication terminal other than the communication terminal connected to the line; It is characterized by having. Also, in the invention according to claim 2, in the information communication network according to claim 1, the communication line network requests a line connection from one of the plurality of communication terminals to the information collection terminal. If the information collection terminal is in line connection with a communication terminal other than the calling communication terminal when there is a call, an incoming call interruption to the information collection terminal is performed. Further, in the invention according to claim 3, in the information communication network according to claim 2, the information collection terminal includes: an incoming interrupt receiving unit that recognizes the incoming interrupt; First communication holding means for holding communication with the communication terminal currently connected to the line, and restarting communication with the communication terminal holding the communication after completion of communication with the communication terminal related to the incoming call interruption. A communication restart means. According to the invention described in claim 4, in the information communication network according to claim 3, the communication terminal collects information during line connection when the information collection terminal requests a suspension of communication. A second communication suspending means for suspending communication with the terminal, and a second communication resuming means for resuming communication with the information collecting terminal currently connected to the line when the information collecting terminal requests resumption of communication. It is characterized by having. According to a fifth aspect of the present invention, in the information communication network according to any one of the second to fourth aspects, when the communication terminal is supplied with predetermined information set in advance, A line connection requesting means for making the line connection request to the information collecting terminal. Also, in the invention according to claim 6, in the information communication network according to any one of claims 1 to 5, the information collection terminal sequentially transmits the information to each of the plurality of communication terminals. An information transmission request means for connecting a line and repeating a transmission request for information is provided. In the invention according to claim 7,
An information communication method in which an information collection terminal connected to a communication network connects a plurality of communication terminals sequentially to each of a plurality of communication terminals connected to the communication network and repeats an information transmission request. The terminal is capable of recognizing a call from one communication terminal other than the communication terminal connected to the line during line connection with one of the plurality of communication terminals connected to the communication line network. And According to the invention described in claim 8, in the information communication method described in claim 7, the communication line network requests a line connection from one of the plurality of communication terminals to the information collection terminal. When the information collection terminal is in line connection with a communication terminal other than the calling communication terminal when a call is made, an incoming call interruption is performed to the information collection terminal. In the invention according to claim 9, claim 8
In the information communication method described in the above, the information collection terminal, when recognizing the incoming interruption, suspends communication with the communication terminal currently connected to the line, and after the communication with the communication terminal related to the incoming interruption ends The communication with the communication terminal holding the communication is resumed. Further, in the invention according to claim 10, in the information communication method according to claim 9, when the communication collection request is issued from the information collection terminal, the communication terminal is configured to output the information on the line connection. The communication with the collection terminal is suspended, and the communication with the information collection terminal currently connected to the line is restarted when the information collection terminal requests a restart of the communication. Also, in the invention according to claim 11, in the information communication method according to any one of claims 8 to 10, the communication terminal is provided when predetermined information set in advance is supplied. Requesting the line connection to the information collecting terminal.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an overall configuration of an information communication network according to one embodiment of the present invention. In this figure, reference numeral 101 denotes a master station serving as a main station. 108
Is a higher-level device such as a monitoring device that receives a telemeter using the information communication network of the present embodiment.

Reference numeral 107 denotes a public line network operated by a telecommunications carrier or the like. 102 _{-1, 102} -2, _{102 -3}
... 102- _N-1 and 102- _N are master stations 10
1 is a slave station serving as a slave station for transmitting various data (hereinafter, simply the slave station 102 or the slave station 10 as needed).
2, 102 ...). These slave stations 102, 10
Each of 2... Is a connected monitored device (not shown).
Alarm data D ₁₀₉ , monitoring data D ₁₁₀ or measurement data D based on various signals supplied from
Generates _{11 1,} etc., these are temporary or permanently stored in the memory card 112.

The above-mentioned master stations 101 and 102 _-1 , 102
_-2, and ₁₀₂ -3 ··· _{102 -N- 1,} are line connection via the public network 107. In addition, master station 101
Is normal is the slave station ₁₀₂ -1 at predetermined time intervals, 102
_-2 , 102 _-3 ... 102- _N-1 are sequentially connected to the line (polling) to collect various data.

FIG. 2 is a block diagram showing a detailed configuration example of the master station 101 and the slave station 102 shown in FIG. Reference _numeral 206 of the master station 101 denotes a data transmission circuit for transmitting the alarm data D ₁₀₉ , the monitoring data D _{110, the} measurement data D _{111, and the} like to the host device 108. Reference numeral 205 denotes a transmission / reception circuit unit. Reference numeral 204 denotes a dial transmission circuit for calling a destination of data communication.

The dial transmission circuit unit 204 and the transmission / reception circuit unit 205 modulate a carrier signal with various data, transmit the data, and demodulate the received carrier signal to extract various data.
(MOdulator / DEMdulator: modem).

Reference numeral 201 denotes an incoming interrupt receiving circuit for detecting that an incoming interrupt signal has been received during data communication. Reference numeral 202 denotes a communication interruption circuit unit that temporarily suspends the line connection in order to prevent the data communication from being disconnected due to a communication error when the data communication is interrupted by an incoming call. Reference numeral 203 denotes a communication restart circuit that restarts the data communication when the reason for suspending the line connection of the data communication is resolved.

Reference numeral 209 denotes a memory, which is communication software 207 for establishing a communication process (protocol) by the dial transmission circuit unit 204, the transmission / reception circuit unit 205, or the data transmission circuit unit 206; Incoming call interruption software 208 and the like indicating a process for suspending data communication during the communication and resuming the data communication are stored.

On the other hand, reference numeral 215 of the slave station 102 is a transmission / reception circuit unit. Reference numeral 214 denotes a dial transmission circuit for calling a destination of data communication. The dial transmission circuit section 214 and the transmission / reception circuit section 215 are constituted by a MODEM or the like which modulates a carrier signal with various data as described above, transmits these data, and demodulates a received carrier signal to extract various data. .

Reference numeral 212 denotes a communication interrupting circuit unit for temporarily suspending line connection in order to prevent the data communication from being disconnected due to a communication error when an interruption occurs in the data communication. A communication restart circuit unit 213 restarts the data communication when the reason for holding the line connection of the data communication has been resolved.

Reference numeral 219 denotes a memory, which is communication software 217 for establishing a communication process (protocol) by the dial transmission circuit 214 and the transmission / reception circuit 215.
Also, incoming interrupt software 218 indicating a process for suspending data communication during line connection when an incoming interrupt is applied and resuming data communication is stored.

In the above configuration, the master station 101
First, a dial is made to a terminal number (telephone number) individually set for each of the slave stations 102, and this slave station 102 is dialed.
And make a line connection.

Next, the master station 101 receives the data transmitted from the slave station 102 after connecting the line with the slave station 102. When the slave station 102 completes data transmission to the master station 101, the master station 101 and the slave station 102 disconnect the line.

Thereafter, the master station 101 transmits the data collected from the slave station 102 to the higher-level device 108. Note the master station 101, Shimesuko station ₁₀₂ -1 1, _{102 -2} ·
.. The above-described processing is sequentially repeated for each of 102- _{N- 1} and 102- _N .

On the other hand, the slave station 102 transmits the alarm data D
₁₀₉ , monitoring data _D110 and measurement data _D111
And monitoring data D ₁₁₀ and measurement data D
₁₁₁ is stored in the memory card 112. Master station 101
After the regular line connection request (polling) from the server, each data stored in the memory card 112 is transmitted to the master station 101, and the line is disconnected after the transmission is completed.

When the alarm data D ₁₀₉ is detected in the received data, the slave station 102 makes a line connection request to the master station 101 and performs data transmission. As described above, normal data collection is performed from the master station 101 to the slave stations 102 and 1.
02... Are sequentially requested. Therefore,
When the slave station 102 makes a line connection request to the master station 101, it can be defined that the degree of urgency is high. Therefore, in the present embodiment, the urgency is high and the
When a line connection request is made from 2 to the master station 101,
Give high priority.

When the slave station 102 issues a line connection request to the master station 101, the slave station 102 dials the terminal number of the master station 101. If the line is not connected to another slave station 102, the master station 101 immediately connects the line to the slave station 102 that has requested the line connection, and receives the transmitted data.

On the other hand, since the line connection is not normally requested from the slave station 102 as described above,
When a dial call is made from 2 to the master station 101, this embodiment regards this as an urgent line connection request,
Even if the master station 101 is in line connection with any of the other slave stations 102, this is suspended and a line connection request is interrupted.

For this reason, the master station 101 is connected to the public network 107
Receive an incoming call interruption service provided by the telecommunications carrier that operates. This incoming call interruption service is a method of sending an unusual incoming signal to a calling telephone terminal when a call (line connection request) is received from another telephone terminal to a telephone terminal connected to the line and calling the telephone terminal. , And alternately switches between line connection and line hold based on a predetermined procedure (command).

In general, the above-described incoming call interruption service includes:
Only one line can perform an incoming call interruption process for a telephone terminal connected to the line, and this is also assumed in the following description.

FIG. 3 is an explanatory diagram for explaining an example of a processing flow in the present embodiment. Hereinafter, processing according to the present embodiment will be described with reference to FIG.

The incoming interrupt receiving circuit unit 201
1 is a slave station 102 (for example, slave station 102 _-N-1In FIG. 3,
Slave station 1) while communicating with slave station B).
02 (for example, slave station 102_-2In FIG. 3, it is described as slave station A.)
If there is a line connection request from
Recognize the connection request and operate the communication interruption circuit unit 202
You.

The communication interruption circuit unit 202 transmits an instruction to interrupt data communication to the slave station 102- _N-1 under communication via the incoming call interruption software 208. On the other hand, the incoming interrupt software 218 of the slave station 102- _N-1 notifies the incoming interrupt software 208 of the master station 101 of the transition to the transmission preparation state and interrupts data transmission. Here, since the master station 101 has received the incoming call interruption service and can switch the communication partner without disconnecting the line, for example, the carrier signal is stopped.

Incoming call interruption software 2 on the master station 101 side
08 notifies the communication interruption circuit unit 202 that the data transmission from the slave station 102- _N-1 has been interrupted. At this time, the communication restart circuit unit 203 stores data up to immediately before the interruption in a memory (not shown).

On the other hand, the communication interrupting circuit 202 notifies the incoming interrupt receiving circuit 201 that the slave station 102- _N-1 has interrupted the data transmission, and uses the incoming interrupt service to allow the incoming interrupt service later. A line connection is made with the slave station 102-2 which has requested connection to the master station 101, and this slave station _10-2 is connected.
_2-2 receives the data to be transmitted.

The incoming interrupt reception circuit unit 201, thus after the end of the reception of the urgent data transmitted from the slave station _{102 -2,} and transmits to the host device 108 the data by the data transmission circuit 206. At the same time, it notifies the completion of the reception of data from the slave station 102 _-2 communication restart circuit 203.

The communication restart circuit 203 where the incoming interrupt service by to disconnect the line with the slave station _102-2 has been connected, the slave stations 10 that interrupts the transmission of data
The data line with 2 _{- N-1} is reconnected (that is, the communication partner is switched to transmit / receive a carrier signal).

The communication restarting circuit 203 notifies the incoming call interruption software 208 that the reception of data from the slave station 102- _N-1 has been restarted. The incoming interrupt software 208 sends a signal to the incoming interrupt software 218 of the slave station 102- _N-1 to restart (request) data transmission.

The incoming interrupt software 218 and the communication restart circuit 213 of the slave station 102- _N-1 transmit the continuation of the data whose transmission has been interrupted to the master station 101. At this time, the communication restart circuit unit 203 and the incoming interruption software 208 of the master station 101 keep the slave station 102 until immediately before the interruption.
_The data transmitted from the slave station 102- _N-1 after the restart is received continuously immediately after the data received and accumulated from _-N-1 . Data completing the reception from slave station _{102 -2} manner is transmitted to the host device 108 via a data transmission circuit 206.

After the transmission of data from slave station 102- _N-1 to master station 101 is completed, master station 101 disconnects the line with slave station 102- _N-1 . Thereafter, the master station 101 makes a line connection request to the next slave station 102 by the dial transmission circuit section 204.

As described above, in the present embodiment, the slave station 102
Requests a line connection to the master station 101 from the slave station 10, even if the master station 101 is connected to another slave station 102.
2 is regarded as an urgent line connection request, and the slave station 102 is preferentially connected to the line to receive data.

It should be noted in the above-described embodiment, there is an urgent originating from slave station _{102 -2} communicating with the master station 101 child station _{102 -N-1,} receives data from the slave station _{102 -N-1} while communicating with the slave station _{102 -2} interrupted, even more for example a connection request from the slave station _{102 -3,} the characteristics of the incoming interrupt service, the master station 101 from slave station _{102 -3} The connection request cannot be recognized. Therefore, in such a case, the slave station _102-3 is the master station 101 and the slave station 102.
_-2 , the line connection request is repeated at a constant period until the communication is completed.

That is, the master station 101 resumes communication with the slave station 102 _{- N-1} after the line disconnection with the slave station 102-2.
If there is a connection request from the slave station _{102 -3} interrupts the reception of data from the slave station _{102 -N-1} again, the slave station 10
Priority line connection with 2 _-3.

The present invention is not limited to being applied to a public line network operated by a telecommunications carrier, but may be a system using a private telephone line, a communication line or a data line used in a specific company or the like.

[0040]

As described above, according to the present invention, an information collection terminal connected to a communication network connects a line sequentially to each of a plurality of communication terminals connected to the communication network. In the information communication method in which the information transmission request is repeated, the information collection terminal is connected to one of the plurality of communication terminals connected to the communication network by one communication terminal other than the communication terminal connected to the line during the line connection. Recognize the call. In addition, when a communication line network is connected to a communication terminal other than the calling communication terminal when one of the plurality of communication terminals issues a line connection request to the information collection terminal, the communication line network is used to collect information. Perform an incoming call interruption to the terminal. Further, when the information collection terminal recognizes the incoming interruption, it suspends communication with the communication terminal currently connected to the line, and communicates with the communication terminal that suspends the communication after the communication with the communication terminal related to the incoming interruption ends. Restart communication. In addition, the communication terminal suspends communication with the information collection terminal currently connected to the line when the information collection terminal requests suspension of communication, and sets the line connection when the information collection terminal requests resumption of communication. Communication with the information collection terminal in progress is resumed. Further, the communication terminal makes a line connection request to the information collection terminal when predetermined information set in advance is supplied, so that an information communication network capable of reporting alarm data with high urgency without delay is provided. And an information communication method can be realized.

That is, according to the present invention, even when one master station is communicating with a slave station, it is possible to receive an emergency call from a slave station other than the one currently communicating. Further, since it is possible to respond to a line connection request of a slave station other than the slave station in communication, it is possible to receive an emergency call even if the number of slave stations is increased for one master station. Was.

When the transmission data amount of the slave station increases, the communication time per slave station increases. However, since the slave station can respond to the line connection request of the slave station other than during the communication, the slave station 1 Even if the amount of data to be transmitted per unit is increased, no problem occurs.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an overall configuration of an information communication network according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a detailed configuration example of a master station 101 and a slave station 102 shown in FIG.

FIG. 3 is an explanatory diagram illustrating an example of a processing flow according to the embodiment;

[Explanation of symbols]

101 master station (information collecting _{terminals) 102,102 -1, 102 -2 ··· 102} -N slave station (communication terminal) 107 public network (communication network) 108 host apparatus 112 memory card 201 incoming interrupt reception circuit unit (Incoming interrupt receiving means) 202 Communication interruption circuit section (first communication holding means) 203 Communication restart circuit section (first communication restart means) 204 Dial transmission circuit section (information transmission request means) 205, 215 Transmission / reception circuit section 206 Data transmission circuit unit 207, 217 Communication software 208, 218 Incoming interruption software 209, 219 Memory 212 Communication interruption circuit unit (second communication holding unit) 213 Communication restart circuit unit (second communication restart unit) 214 Dial transmission circuit unit (Line connection request means)

Claims (11)

[Claims] A plurality of communication terminals (102, 102) each connected to a communication network (107) and to which various information is input.
_{-1, 102 -2 ··· 102 -N-} 1, 102 -N)
And one of the plurality of communication terminals connected to the communication line network.
An information communication network, comprising: an information collection terminal (101) that is connected to a line and that can recognize a call from one communication terminal other than the communication terminal connected to the line. 2. The communication network according to claim 1, wherein when one of the plurality of communication terminals issues a line connection request to the information collection terminal, the information collection terminal communicates with a communication terminal other than the call communication terminal. 2. The information communication network according to claim 1, wherein an incoming call interruption to the information collecting terminal is performed when the terminal is connected. 3. An incoming call interruption receiving means (2) for recognizing the incoming call interruption.
01), first communication holding means (202) for holding communication with a communication terminal currently connected to the line when the incoming interruption is recognized.
And first communication resuming means (203) for resuming communication with the communication terminal holding the communication after the communication with the communication terminal related to the incoming call interruption is completed. 2. The information communication network according to 2. 4. The communication terminal, comprising: a second communication holding means (212) for holding communication with an information collection terminal currently connected to a line when holding of communication is requested from the information collection terminal; 4. The information according to claim 3, further comprising a second communication resuming means (213) for resuming communication with the information collecting terminal connected to the line when a request for resuming communication is made from the collecting terminal. Communication network. 5. The communication terminal further comprises a line connection requesting means (214) for making a line connection request to the information collecting terminal when predetermined information set in advance is supplied. The information communication network according to any one of claims 2 to 4, wherein 6. An information transmission requesting means (204), wherein the information collecting terminal repeats an information transmission request by sequentially connecting a line to each of the plurality of communication terminals.
The information communication network according to any one of claims 1 to 5, comprising: 7. An information communication method in which an information collection terminal connected to a communication network repeatedly connects a line to each of a plurality of communication terminals connected to the communication network and repeats an information transmission request. The information collection terminal recognizes a call from one communication terminal other than the communication terminal connected to the line during line connection with one of the plurality of communication terminals connected to the communication line network. An information communication method characterized by being able to do so. 8. The communication network, wherein when one of the plurality of communication terminals issues a line connection request to the information collection terminal, the information collection terminal communicates with a communication terminal other than the call communication terminal. 8. The information communication method according to claim 7, wherein when connection is being made, an incoming call interruption is performed to the information collection terminal. 9. The information collection terminal, when recognizing the incoming interruption, suspends communication with a communication terminal currently connected to the line, and after the communication with the communication terminal related to the incoming interruption is terminated, performs the communication. 9. The information communication method according to claim 8, wherein the communication with the held communication terminal is resumed. 10. The communication terminal, when a suspension of communication is requested from the information collection terminal, suspends communication with an information collection terminal currently connected to a line, and a request to resume communication is issued from the information collection terminal. 10. The information communication method according to claim 9, wherein the communication with the information collection terminal connected to the line is restarted when the communication is performed. 11. The communication terminal according to claim 8, wherein said communication terminal issues said line connection request to said information collection terminal when predetermined information set in advance is supplied. The information communication method according to any one of the above.