JPH07236176A - Data communication equipment - Google Patents

Abstract

PURPOSE:To attain data communication through a radio communication route between PHP slave sets by setting up the same communication sequence as that for a base station at the time of calling for the execution of data communication. CONSTITUTION:An originating side personal computer 101 is driven similarly to the control of an asynchronous MODEM to be used for normal system constitution. Thereby a PC/PHP card 102 controls a PHP slave set 103 connected through a cable 104 to establish a communication state with a called party and executes connection operation, data communication operation, disconnection operation, etc., with a terminating side MODEM function through the slave sets 103. Originating side operation for transceiver operation for executing data communication between the slave sets 103 through the communication line is the same as operation for the base station. At the time of terminating a call, data communication operation matched with information corresponding to the same communication sequence as that for the base station is executed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a PHP (Personal Han)
dy Phone) Data communication device using a child device.

[0002]

2. Description of the Related Art In recent years, a digital cordless telephone, that is, a communication system using a personal handy phone (hereinafter abbreviated as PHP) has been used as a next-generation mobile telephone using digital signals instead of a telephone using analog signals. It is planned.

In this communication system, a small output PHP slave (mobile station) like a slave of a cordless telephone is provided not only at home but also at a base station in an office, a station, a shopping district, a public telephone box or the like. This makes it available in many places. Further, the PHP slave unit has a function (transceiver function) of establishing a line not only with the base station but also with another slave unit and performing communication between the slave units.

Since a communication system using a PHP handset performs communication using a digital signal, a data communication service which cannot be realized by a telephone using an analog signal, for example, an information processing device such as a personal computer is used as a PHP handset. , And data communication can be performed via a wireless communication path.

[0005]

[Problems to be Solved by the Invention] However, PHP
When performing data communication via a slave unit, it can be handled by creating new communication application software according to the protocol and interface in this communication system. However, communication application software in a communication system using a conventional asynchronous modem Becomes unnecessary. That is, since the past software assets are wasted and the operability is changed, it is preferable that the communication system can use the conventional communication application software as it is.

However, there is no agreement on the protocol for data communication via the PHP slave unit, and in particular, there is no agreement on the protocol for data communication between the PHP slave units. The present invention has been made in consideration of the above circumstances, and allows data communication via a wireless communication path between PHP handset devices without changing communication application software compatible with a communication system using an asynchronous modem. It is an object of the present invention to provide a data communication device capable of performing

[0007]

The present invention is provided between an information processing device and a PHP (Personal Handy Phone) slave unit, and responds to an instruction to execute data communication from the information processing device. At the time of calling, the interface function on the calling side that performs the same communication sequence as that for the base station and sends out predetermined information via the PHP slave unit, and other PHP slaves input via the PHP slave unit at the time of incoming call. And a receiving side interface function for performing a data communication operation according to information according to a communication sequence sent from the machine.

The interface function of the receiving side is
According to the information from the other PHP slave unit, information input between the information processing device and the pseudo-originating base station function that artificially performs data communication operation of the base station with respect to the originating PHP slave unit. Information is input and output between the terminating pseudo interface for output, the pseudo terminating base station function, and the terminating pseudo interface, and the terminating modem operation is simulated. It is characterized by having a terminating side pseudo modem function.

The information processing apparatus uses the "D" AT command to control the modem function, and the calling side interface function is the "D" AT command.
Command dialing parameters "A" to "D"
It is characterized by comprising dialing processing means for using the character of as a parameter for controlling the PHP slave unit.

[0010]

According to such a configuration, the same communication sequence as that for the base station is used at the time of transmission during data communication, so that it is not necessary to newly create unique communication application software. In addition, by performing a data communication operation according to the information according to the same communication sequence as that for the base station when receiving a call, the information processing apparatus on the calling side normally operates the software in the system using the asynchronous modem. be able to.

Further, in the communication system using the PHP slave, the characters "A" to "D" of the dialing parameter of the "D" AT command, which is not originally used, are used as the parameters for controlling the PHP slave. There is no problem in the command system, and it is possible to avoid the influence when a function is added in the future by adding the AT command.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration of a mobile body system using a data communication system in this embodiment.
This embodiment is a personal handy phone.
Phone: hereinafter, abbreviated as PHP), and has a system configuration for performing data communication between PHP slaves.

As shown in FIG. 1, in this embodiment, a personal computer (hereinafter abbreviated as personal computer) 101
An example of performing communication between (101a, 101b) will be described. Each of the personal computers 101a and 101b is equipped with a personal computer / PHP card (hereinafter, abbreviated as PC / PHP card (data communication device)) 102 (102a, 102b) for performing data communication via a wireless communication path. There is. Furthermore, each PC / PHP card 102a,
102b are PHP slaves 103 (103a, 1), respectively.
03b). That is, the PHP slave unit 10
PCs 101a and 101b by 3a and 103b
Data for data communication between the two are transmitted and received.

In the system shown in FIG. 1, data can be transmitted and received through the PC / PHP card 102 by the communication function of the PHP slave unit 103 (online mode).
Is set to. After setting to the online mode, P
Without controlling the HP slave device 103, the PHP slave device 103
Through the PC, data communication can be performed between the personal computers 101.

FIG. 2 is a block diagram showing the functional arrangement of the PC / PHP card 102 on the receiving side. PC /
The PHP card 102 is a personal computer 101 and a PHP slave unit 1.
Functioning between the connection cable 104 for connecting to the computer 03, and is constituted by an interface bus connection device with the personal computer 101, a CPU, a memory, a clock, and a wireless data communication protocol control IC, and as shown in FIG.
Each function of a pseudo sending side base station function 220, a called side pseudo UART register 230 (a called side pseudo interface), and a called side pseudo modem function 240 is provided.

The pseudo transmission side base station function 220 is for performing a pseudo data transmission operation of the transmission side base station with respect to the information from the transmission side PHP handset in the reception operation. The pseudo U-side base station function 220 has a pseudo U
An ART register 221 and a pseudo modem function 222 are provided.

The pseudo UART register 221 is an interface for inputting and outputting various data for controlling a modem function when performing data communication. The pseudo modem function 222 executes a modem function according to a communication command (AT command) for controlling the modem function output from the other party, analyzes the AT command, etc., and establishes a pseudo modem function with the other party. It transmits and receives data to and from 240. The pseudo modem function 222 has an S
Register 223, various setting section 224, data control section 22
Each function of 5 is provided.

The S register 223 is for storing various data used for executing the modem function. The various setting section 224 sets other data set in the S register 223. Data control unit 225
Is for controlling transmission / reception of data between the calling side and the called side pseudo modem function 240.

The receiving side pseudo UART register 230 is an interface for inputting / outputting various data for controlling the modem function output from the personal computer 101 in order to control the modem function when performing data communication.

The receiving side pseudo modem function 240 executes a modem function according to the data (communication command (AT command) output from the personal computer 101) stored in the receiving side pseudo UART register 230. Data is transmitted to and received from the pseudo transmission side base station function 220. Called side pseudo UART register 230
Each function of the S register 241, various setting unit 242, and data control unit 243 is provided in the.

The S register 241 is for storing various data used for executing the modem function. The various setting unit 242 sets other data set in the S register 241. Data control unit 243
Is called pseudo modem function 240 and called pseudo UART
Transmission / reception control of data between the registers 230 is performed.

Between the PHP slave unit 103 and the base station, the same communication information (UART control information 25) as the information shown in FIG.
1, UART status information 252, AT command 25
3, including the result code 254, the transmission data 255, the reception data 256, etc.). The communication information realizes data communication by controlling the modem function. Note that each data of the communication information is actually transmitted / received in the form of a command (header + data representing the type of data).

Originating PHP slave 103 and PC / PH
The P card 102 operates while exchanging communication information as described above, as in the case of data communication using an asynchronous modem using a base station.

The pseudo transmitting side base station function 220 operates as if various kinds of communication information with the transmitting side were communicated with the transmitting side base station, and the transmitting side communicates with the base station. Provide a communication environment equivalent to.

The terminating side pseudo UART register 230 and the terminating side pseudo modem function 240 are as if UART (Universal Asynchronous Recev) for the personal computer 101.
er Tranceiver) to provide an environment as if performing asynchronous modem communication.

Between the receiving side pseudo UART register 230 and the receiving side pseudo modem function 240, input data 213 from the personal computer 101 and output data 2 to the personal computer 101 are provided.
14 is exchanged, and the access information to the UART register of the personal computer 101 is processed by the receiving side pseudo UART register 230. Here, the input data 213 includes an AT code and transmission data, and the output data includes a result code and reception data.

Net reception data 211 and transmission data 212 are exchanged between the pseudo transmission side base station function 220 and the reception side pseudo modem function 240. In this way, the receiving-side PC / PHP card 102 appears to the calling-side PC / PHP card 102 as if it is communicating with the base station, and is normally asynchronous to the calling-side personal computer 101. Make it look like you are doing modem communication.

Next, the operation of this embodiment will be described.
Before describing the operation of this embodiment, data communication between the PHP slave device 103 and the base station (master device) will be described. The connection operation viewed from the calling side will be described below. The originating personal computer 101 operates similarly to the case of controlling the asynchronous modem used in the normal system configuration. As a result, the PC / PHP card 102 is connected to the connection cable 10
Controls the PHP slave unit 103 connected in 4 to establish a communication state with the other party, and connects and data-communicates with the modem function of the other party (incoming side) via the PHP slave unit 103. , Disconnection operation, etc. are executed. Here, PH
It is assumed that the line between the PHP slave units 103 (103a, 103b) is connected by the connection operation between the wireless functions of the P slave unit 103, and the modem of the other party (incoming side) is used to perform data communication. A connection operation shall be executed with the function.

First, data indicating the mode setting of the communication procedure (base station control information, omitted in FIG. 2) is transmitted to the base station. RTS / DTR ON is transmitted, that is, the base station modem is notified that communication is ready (UART control information 251).

Send the value of the visor latch register (U
ART control information 251). This informs the base station modem of the terminal speed for emulation. 1
Initial values of byte length, parity, and stop bits are transmitted (UART control information 251). This defines the format of data that the modem sends and receives in normal mode.

Next, an AT command 253 for initialization
To define various modes of the base station modem. In response to this AT command, the base station modem issues a result code "OK" and receives this code "OK" 254. The transmission and reception of the AT code 253 and the result code 254 are repeated a necessary number of times for setting the modem.

When the setting of the modem function is completed, the AT command 253 ("AT" for shifting the modem function from the command mode to the online mode for performing communication).
D command ") to the base station modem to prompt the transition to online mode.

By receiving the data carrier detect on information (UART status information 252), it is notified that the carrier is received from the communication destination, and further, "ATD
Result code corresponding to "command"("CONNECT
T ”) is received, the online state is established and data communication becomes possible.

In the online state, that is, during data communication operation, communication data is transmitted and received in full duplex (transmission data 25
5, received data 256) is possible. Next, the disconnection operation of the line as seen from the calling side will be described.

First, the escape command "ESC" for instructing the transition from the online mode to the command mode.
(Base station control information, omitted in FIG. 2) is transmitted to the base station.

When the result code "OK" corresponding to the "ESC" command is received, the AT command 253 ("ATHO") for ending the data communication and disconnecting the line.
To prompt the end of data communication.

As a result, the result code "OK" (result code 254) corresponding to the "ATHO" command is issued.
And the reception of the data carrier detect off information (UART status information 252) notifies the carrier that the carrier has been interrupted.

Further, the base station modem on-hook information is received (base status information: omitted in FIG. 2), and it is notified that the base station modem is on-hook.
In addition, if there is an abnormality in the communication line beyond the base station during communication,
The corresponding UART status information 252 is received at any time.

In the mobile system according to this embodiment, the PHP slave unit 1 is basically operated by the procedure as described above.
The communication control between 03 and the base station is performed. In the present invention, the PHP slave units 103a, 10a as shown in FIG. 1 are further modified without changing the procedure for the base station.
It enables communication (transceiver operation) via 3b.

Since the operation on the transmitting side in the transceiver operation for performing data communication via the communication line between the PHP slave units 103 is exactly the same as the operation for the base station described above,
Here, the operation on the receiving side will be described.

Whether to perform communication with the base station or with the PHP slave unit 103 (transceiver operation) depends on the connection operation between the wireless functions, apart from the pure data communication part. Shall be done inside. Therefore, it will not be described below. Further, the operation will be described in correspondence with the operation on the calling side.

First, the pseudo transmission side base station function 220 confirms the mode when receiving the mode setting of the communication procedure (base station control information: omitted in FIG. 2), and if the mode is not correct, receives the mode setting again. Until then, ignore subsequent commands.

RTS / DTR ON (UART control information 2
51), the pseudo originating base station function 220
The internal register of the pseudo UART register 221 is changed according to this information.

The value of the visor latch register (UAR
Upon receiving the T control information 251), the pseudo originating base station function 220 changes the internal register of the pseudo UART register 221 in accordance with this information.

When the initial value (UART control information 251) of the 1-byte length / parity / stop bit is received, the pseudo originating base station function 220 changes the internal register of the pseudo UART register 221 in accordance with this information. Let

Further, when the AT command for initialization is received (AT command 253), the pseudo originating base station function 220 changes the values of the S register 223 and various setting sections 224 in accordance with this information.

Upon completion of changing the values of the S register 223 and various setting sections 224, the result code "OK" 254 is transmitted. In particular, except for commands necessary for pseudo processing, the pseudo originating base station function 220 unconditionally sets "OK".
return it.

AT code 2 for setting the modem function
The transmission and reception of 53 and the result code 254 are repeated a necessary number of times. When the AT command 253 (“ATD command”) for shifting the modem function from the command mode to the online mode for communication is received after the setting of the modem function is completed, the pseudo originating base station function 220
Confirm the transition to pseudo online mode.

After that, the data carrier detect on information (UART status information 252) is unconditionally transmitted for emulation, and further, the result code ("CONNECT") corresponding to the "ATD" command is unconditionally transmitted. . No error will occur even if "CONNECT" is sent unconditionally.

As a result, the online state is established and data communication becomes possible. In the online state, communication data is transmitted and received in full duplex (transmission data 255, reception data 25
6) is possible. In this state, the data from the personal computer 101 can be directly transmitted and received (in particular, compression and error correction are not necessary), and the pseudo modem function 2
The data control unit 225 of 22 sends and receives only communication data (reception data 261 and transmission data 262) to and from the terminating side pseudo modem function 240.

The receiving side pseudo modem function 240 transmits / receives communication data by the data control section 243, and further inputs / outputs as input data 263 and output data 264 to / from the receiving side pseudo UART register 230. As a result, the personal computer 101 inputs / outputs data via the receiving side pseudo UART register 230.

Next, the operation of disconnecting the line as seen from the receiving side will be described. When the escape command “ESC” (base station control information, omitted in FIG. 2) that instructs the transition from the online mode to the command mode is received,
The pseudo originating base station function 220 confirms the shift to the command mode.

The pseudo originating base station function 220 transmits a result code "OK" (result code 254) corresponding to the escape command. Then, the AT command 253 (“A
THO ") is received, the data communication end process on the receiving side is performed.

The pseudo origination base station function 220 uses the "ATH
The result code “OK” (result code 254) corresponding to the “O” command is transmitted, and the termination process on the called side is confirmed by transmitting the data carrier detect off information (UART status information 252).

Further, the pseudo originating side base station function 220 transmits base station modem on-hook information for notifying that the called side is in a pseudo on-hook state (base station status information: not shown in FIG. 2). To do. As a result, the data communication line is disconnected.

Next, a dialing processing unit (not shown) required as a part of the calling side interface function will be described. The dialing processing unit is provided in the modem function of the PC / PHP card 102, and functions when it is the data communication originating side.

Originating PC / PHP card 102 and PH
The operation of the P child device 103 is equivalent to the processing between the base station after the connection with the called-side PHP child device 103, but before the connection, P
The operation for HP inter-unit communication must be specified. For example, "press the extension button" (other PHP handset 10
3 indicates that communication with the third communication device is performed).

If this operation is manually operated on the PHP slave unit 103, the operability is poor when data communication is performed by the personal computer 101. So, PC / PHP
It is conceivable that the PHP slave unit 103 is controlled from the card 102 so that the PHP slave unit 103 functions in the same manner as when the operation of “pressing the extension button” is performed. In this case, a method of sending a control command from the personal computer 101 to the PC / PHP card 102 is required. At this time, if a new AT command is added, it may be a hindrance when a function is added in the future, which is not desirable in terms of the command system.

By the way, dial parameters "A" to "D" of the "D" AT command for controlling the telephone operation called dialing are assigned as respective dial tones in asynchronous modem communication used in a normal system. There is.

However, in the system using the PHP slave device 103, the dial tone is not used, so that the dial parameters "A" to "D" are not used. In this embodiment, the dial parameters “A” to “D” are set to PHP.
It is assigned and used to control the operation of the child device 103. This method is also valid because the "D" AT command is a command for telephone operation called dialing.

FIG. 3 shows the dialing processing section provided in the modem function of the PC / PHP card 102.
It is a flowchart which shows the procedure which controls the PHP subunit | mobile_unit 103 by "D" AT command process.

First, when the "D" AT command is output from the personal computer 101 (step S1), the dialing processing section reads the dial parameter given by the "D" AT command (steps S2, S3).

If the characters are "0" to "9", the operation is controlled to dial the number corresponding to the character as the telephone number of the destination (step S4). , S5).

When the character is “A”, the operation of the slave unit assigned to “A”, for example, the extension dial notification (the communication partner is the other PHP slave unit 103) is used as the PHP slave unit 1.
03, the operation is controlled so as to communicate with another PHP slave 103 (steps S6 and S7). In the system configuration shown in FIG.
Connection with the child device 103 is performed.

In addition, if the character is "B", "B"
As a slave unit operation assigned to, for example, a slave unit waiting mode notification, the PHP slave unit 103 is controlled to enter the slave unit waiting mode (steps S8 and S9). Similarly, when the character is “C”, the operation of the child device assigned to “C” is controlled, and when the character is “D”, the operation of the child device assigned to “D” is controlled. If it is a character of, error processing is performed.

In this way, the PHP slave unit 103 can be controlled by the "D" AT command processing, and it is not necessary to manually operate the telephone function of the PHP slave unit 103.
In addition, although the case of controlling the PHP slave device 103 on the calling side is described, the dial parameters “A” to “D” are described.
Can be used for the operation on the receiving side and the operation during data communication using the base station.

In this way, similar to the data communication between the PHP slave unit 103 and the base station, the same application software for communication as the communication using the asynchronous modem used in the normal system is used, that is, Without designing new original application software for communication with special modification of the data communication operation on the calling side, PH
Data communication (transceiver operation) can be performed between the P-units 103. Therefore, a normal data communication operation may be performed without being aware of the data communication via the PHP slave unit 103, and the usability for the user is not deteriorated.

Further, the operation on the calling side should be shared with the data communication when the other party is a base station, that is, PHP.
By using the data communication sequence between the handset 103 and the base station as it is, the design man-hours can be reduced and the quality can be easily incorporated even when developing the communication application software.

Further, dial parameters "A"-
By using “D”, there is no need to add a new AT command for controlling the PHP slave device 103, and it is possible to provide an operation method for the PHP slave device 103 that is appropriate as a user interface.

[0070]

As described above, according to the present invention, it is possible to perform data communication via a wireless communication path between PHP handset units without changing communication application software compatible with a communication system using an asynchronous modem. It will be.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a mobile system using a data communication system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a functional configuration of a PC / PHP card 102 in this embodiment.

FIG. 3 is a flowchart showing a procedure for controlling the PHP slave device 103 by “D” AT command processing in the dialing processing unit in the present embodiment.

[Explanation of symbols]

101 ... Personal computer (PC), 102 ... P
C / PHP card, 103 ... PHP handset, 220 ... Pseudo originating base station function, 221 ... Pseudo UART, 222 ... Pseudo modem function, 223, 241 ... S register, 224,
242 ... Various setting sections, 225, 243 ... Data control section,
230 ... Called side pseudo UART register, 240 ... Called side pseudo modem function, 251 ... UART control information, 252 ...
UART status information, 253 ... AT command, 25
4 ... Transmission data, 256 ... Reception data.

Claims (3)

[Claims] 1. An information processing device and a PHP (Personal Handy)
Phone) which is provided between the slave device and the same communication sequence as that for the base station at the time of making a call in response to the data communication execution instruction from the information processing device. A calling side interface function that sends out predetermined information, and another PH that is input via the PHP handset when receiving a call.
A data communication device comprising: a receiving-side interface function for performing a data communication operation in accordance with information according to a communication sequence transmitted from a P-unit. 2. The terminating side interface function is a pseudo originating side base station function for quasi-performing a data communication operation of the base station to the originating side PHP slave unit in accordance with information from the other PHP slave unit. , A receiving side pseudo interface for inputting / outputting information to / from the information processing device, and an input / output of information between the pseudo transmitting side base station function and the receiving side pseudo interface. The data communication device according to claim 1, further comprising: a terminating side pseudo modem function for simulating a terminating side modem operation. 3. The information processing apparatus uses a "D" AT command to control a modem function, wherein the calling side interface function is "A" of a dialing parameter of the "D" AT command. 2. The data communication apparatus according to claim 1, further comprising dialing processing means for using the letters "D" as a parameter for controlling the PHP slave unit.