JPH0923199A - Monitor and control system for radio equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a radio equipment monitor and control system reducing the kinds of hardware and software for equipments constituting the system, having generality and excellent maintenance and reducing cost in respect to the constitution of a monitor and control system for the equipments of respective radio stations in a radio communication system. SOLUTION: The monitor and control system is provided with a personal computer(PC) 10 for executing the alarm display and control of respective radio equpments in its own station A and other stations B, C and controlling interface with an operator, an MPU part 20 to be a monitor and control part for local information, two MODEM parts 1-1, 1-2 for connecting a service channel signal between the PC 10 and the MPU part 20 and modulating/demodulating a digital communication message outputted from the PC 10 into an analog message and a BRNET part 2 for branching an analog service channel signal between the two MUDEM parts 1-1, 1-2 to the other channel. The communication of an analog signal through the BRNET part 2 connected between the two MODEM parts 1-1, 1-2 arranged between the PC 10 and the MPU part 20 can be executed without procedure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a configuration of a supervisory control system for equipment of each radio station in a radio communication system. In recent years, the hardware and software of the part used for monitoring and controlling the status of the own station and other wireless stations of a wireless communication system have been actively developed, and the monitoring control is superior in maintainability and low cost. Realization of the system is required.

[0002]

2. Description of the Related Art FIG. 4 shows the configuration of a conventional wireless equipment monitoring control system. This wireless communication system includes a wireless station A having a terminal station 1, an intermediate relay wireless station B having a terminal station 2 and a terminal station 3 in the same building, and a wireless station C having a terminal station 4.
The terminal device of each wireless station is an MPU unit which is a supervisory control processing unit for station information, an SV INTF unit which is a message analysis unit for inter-station communication controlled by the MPU unit, and a personal computer interface PC. INTF section, ALM INT section of alarm collection section of wireless equipment, and intermediate relay station B
Is the SV of both terminal station 2 and terminal station 3 in the same station.
It is configured to have a DIG CON section which is a digital communication telegram branching section between its own station A and other stations B and C connecting the INTF section. The MPU unit is a main processing unit that monitors and controls not only the status information of the local station A but also the status information of the other stations B and C, and the status information (alarm at the time of abnormality / status at the normal time) of the devices of all the wireless stations is It is managed by this MPU department. The state change of the device information of each station is stamped (time stamp) with the time of occurrence / restoration, and is accumulated (logged) in a memory (not shown) under the control of the MPU unit. The information logged in the memory is as described above upon request from the personal computer PC.
It is sent to the requesting PC through the PC INTF section, SV INTF section, and DIG CON section. A radio station A, which is arbitrarily set, becomes the center (master station), and the SV INTF section of the master station A uses a digital service channel DSC of, for example, 64 kb / s by a radio signal, and the other radio stations B and C. Communication is performed by transmitting a command and receiving a response by a so-called polling method or HDLC (High Level Data Link) procedure, and the state information of the other wireless stations B and C is collected. Telegram information when the master station A is polling other wireless stations B and C is intercepted by each wireless station A, B and C so that each station can have status information of all stations. Has become. When the configuration of the wireless communication system is a so-called Back to Back configuration in which end stations are connected to each other as shown in FIG. 4, a communication message (for example, 64 kb / s in HDLC format is used).
Is a digital communication message branching unit between stations.
The area controlled by the master station A was expanded by branching at the N section and passing it to the MPU section of another station. The ALM INT unit, which is the alarm collection unit, has the function of performing an interface (serial or parallel communication) between the wireless device unit for transmission and reception and the monitoring control unit, and the information of all wireless devices is
It is passed to the MPU section through this ALM INT section. PC INTF
The unit has an interface function with the personal computer PC, and transmits the status information of the wireless device logged in the memory under its control via the MPU unit in response to a request from the PC. The personal computer PC is a man-machine interface section that controls the interface with the worker. The worker knows the status of each device from the information on the screen of the PC, and controls the wireless devices by the PC according to the status information. I was going.

[0003]

The above-described conventional wireless device monitoring and control system lacks versatility because it has many types of hardware of the devices of each station constituting the wireless device and software for operating them. There was a problem that maintainability was poor and cost was high. An object of the present invention is to realize a supervisory control system for a wireless device, which has a small number of types of hardware and software of devices constituting the system, has general versatility, is easy to maintain, and is low in cost.

[0004]

The basic configuration of the supervisory control system for wireless equipment of the present invention for achieving this object is shown in FIG.
As shown in the principle configuration diagram of the local station A and other stations B and C
Connection of a service channel signal between a personal computer PC (10) that controls the interface with the operator by displaying an alarm indicating the abnormality of each wireless device and an MPU unit (20) that is a station information monitoring control unit The two MODEM sections (1
-1) (1-2) and an analog BR NET section (2) for branching a part of the analog service channel signal between the two MODEM sections to other stations B and C, the personal computer PC (1
0) and MPU section (20) between two MODEM sections (1-
The communication between the analog signals 1) and 1-2) via the BR NET unit (2) is performed without any procedure.

[0005]

In the present invention, for example, the wireless station A that has become the master station.
The two MODEM parts (1-1) and (1-2) are
In order to connect the service channel signal of the supervisory signal and the control signal between the (10) and the MPU unit (20) which is the supervisory control unit of the station information, the digital communication message from the PC is transferred to the MO
Analog modulation / demodulation by DEM section (1-1), BRNET section
It is sent to the MODEM section (12) of the own station and other stations via (2). The BR NET section (2) consists of two MODEMs of its own station A.
A part of the analog service channel signal between the sections (11) and (12) is branched to the other stations B and C, and the MPU section (2
0) to monitor the devices of other stations B and C and perform necessary control. Then, the information of the result of the monitoring and control is returned to the personal computer PC (10) of the wireless station A through the route opposite to the previous route and the information is displayed on the screen of the PC (10). In this way, the personal computer PC (10) connected to the arbitrarily determined wireless station A can easily monitor and control the devices of the own station A and the other stations B and C. To be achieved.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The principle diagram of FIG.
The configuration of an embodiment corresponding to is shown. The operation of each part will be described. For example, a digital station information request signal for requesting monitoring and control of a device from a personal computer PC (10) connected to a wireless station A to other wireless stations B and C is an analog MODEM section. (1-
By 1), for example, FSK modulation which is an analog type,
It is input to the BR NET section (2). This BR NET section
In (2), the input signal (analog signal) is branched, and the BRNET section of other wireless stations B and C is routed via the wireless transmission path (2).
Sent to In each station A, B, C, BR NET of each station
The service channel signal from the section (2) is transferred to the MODEM section (1-
MP demodulated by FSK in 2) and its circuit configuration is shown in Fig. 3.
RS-23 which is an interface with MODEM in U part (20)
MPSC (Multiple Protocol S with 2C interface)
The FSK demodulated digital signal is input to a communication port called "erial control", and the CPU analyzes the electronic message sent from the wireless station A. A response to the request information to the master station A is performed by a method reverse to the above method. If it is not an information request message addressed to its own station, it does not respond to station A. Note that the MPU unit (20) of each station is an ALM that is an alarm information collecting unit of wireless equipment of each station, as shown in the circuit configuration diagram of FIG.
Editing station information by CPU via common RAM for ALM INT section connected to INT bus, storing station information in memory section for storing station information, time stamp function, personal computer PC
It has a control function to download the logging information of its own memory section to high-speed data by the DMA bus in response to the information request from. And this M of the present invention
The PU unit (20) is composed of, for example, an 8-bit CPU, which requires a CPU having a smaller capacity than the 16-bit CPU of the conventional MPU unit.

An embodiment corresponding to claim 2 is the same as claim 1, in which the analog BRNET (2) outputs the analog signals of the input and output of the two MODEM sections (1-1) (1-2). Built-in so-called PCM CODEC for converting to digital signal, M of own station A
An analog service channel signal between the ODEM section (1-1) and the MODEM sections (1-2) of the other stations B and C is used as a digital service channel signal. With the configuration of FIG. 1, for example, the personal computer PC (10) connected to the MODEM section (1-1) of the wireless station A can easily monitor and control the state of the equipment of any station of the other stations B and C. You can
However, in the method of FIG. 1, since the station information storage memory section of the MPU section (20) of each station has only the information of its own station as the logging information, it is possible to use a personal computer PC ( There is a drawback that you can not see the logging information of all wireless stations by connecting 10). This drawback is solved by the embodiment corresponding to claim 3 of FIG.
The hardware configuration of the embodiment of FIG. 2 is the same as that of the embodiment of FIG. 1, but the difference lies in the software configuration of the firmware memory section of the MPU section (20), the first of which is , The personal computer PC (10) is not connected, for example, in the MPU section of the wireless station B, the communication port communicating with the PC when the PC is connected is the station A to which the PC is connected. It intercepts communication telegrams with other stations C that are not connected, collects station information of all stations A, B, and C, and uses it as logging information of its own station B. By doing so, it becomes possible for each arbitrary station to own the status information of all stations (claim 3). Next, the MPU part of the station A to which the personal computer PC (10) is connected is connected to the other stations B and C from its own communication port.
To the communication port of the MPU unit of the other station, the stop instruction of the polling operation which is the other station B, C is currently collecting information to the master station (not shown) is sent, and the polling operation of the station B, C is stopped. Then, the software in the firmware memory section of the MPU section is changed. By doing this, a personal computer PC (10) connected to any station A
It is possible to avoid a collision between the supervisory control request message from the other stations B and C to the polling message that the stations B and C perform with the master station, and the personal computer PC (10)
Thus, the communication of the supervisory control between the arbitrary connected station A and the other stations B and C can be performed without any trouble (claim 4).

[0008]

As described above, according to the present invention, it is possible to monitor a versatile wireless device that uses a personal computer PC and can monitor and control station information of another station by connecting to an arbitrary wireless station at low cost. The effect that a control system can be constructed is obtained.

[Brief description of drawings]

FIG. 1 is a principle diagram showing a basic configuration of a supervisory control system for a wireless device of the present invention (corresponding to claims 1 and 2).

FIG. 2 is a configuration diagram of an embodiment corresponding to claims 3 and 4 of the present invention.

FIG. 3 is a circuit configuration diagram of an MPU unit of each wireless station according to the embodiment of the present invention.

FIG. 4 is a diagram of a configuration example of a conventional wireless device monitoring control system.

[Explanation of symbols]

A, B, and C are terminal stations constituting a wireless communication system, and (1-1) and (1-2) are two analog Ms of each station.
An ODEM unit that modulates / demodulates service channel signals between the personal computer PC (10) connected to an arbitrary wireless station A and the MPU unit (20) of the own station A and combines them. (2) is the above 2
A part of the service channel signal between (1-1) and (1-2) of one MODEM section is branched to the MODEM section of another radio station B
R NET part (built-in PCM CODEC), 10 is a personal computer PC connected to (1-1) of MODEM part of any wireless station, 20 is monitoring control of CPU information of each wireless station A, B, C Is an MPU unit which is a processing unit of.

Claims (4)

[Claims] 1. A service channel between a personal computer PC for displaying and controlling alarms of wireless devices of its own station and other stations and controlling an interface with a worker, and an MPU section which is a station information monitoring control section. Two MODEM units for connecting signals and for modulating / demodulating digital communication messages from the PC in an analog manner, and a BRNET unit for branching an analog service channel signal between the two MODEM units to the MODEM unit of another station. B of the analog signal between the two MODEM sections between the personal computer PC and the MPU section.
A wireless device monitor and control system characterized in that communication via the R NET unit is performed in a non-procedural manner. 2. The analog BR according to claim 1.
The NET part digitizes the input and output analog signals
Built-in PCM CODEC, MODEM part of own station A and other station B,
A monitoring control system for a wireless device, wherein an analog service channel signal to and from the MODEM section of C is used as a digital service channel signal. 3. The personal computer PC is connected to a communication port capable of communicating with each MODEM unit of the own station and another station in the MPU unit which is a station information monitoring control unit of each wireless station. The wireless station A that has been connected performs transmission / reception communication with the personal computer PC, and the wireless station B that is not connected to the personal computer PC is another station that is not connected to the wireless station A to which the personal computer PC is connected. A monitoring control system for a wireless device, characterized in that it intercepts a communication message with C, collects station information of all stations, and uses it as logging information to be stored in a memory unit of its own station B. 4. The polling operation according to claim 3, wherein the polling operation is performed between the communication port in the MPU unit of the wireless station A to which the personal computer PC is connected to the other wireless stations B and C and the master station. By sending a command and stopping the polling operation, the monitoring control request message and the polling message between the wireless station A to which the personal computer PC is connected and the other wireless stations B and C that are not connected are generated. A wireless device monitoring and control system characterized by mutual communication without collision.