JP2002016985A - Monitoring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily perform the number setting of a slave device, and to facilitate countermeasures even to connection or exchange of the slave device. SOLUTION: A slave device 10 is provided with a slave number setting part 14 constituted of a memory control unit, a non-volatile memory, a slave ID register, and a slave number register, and a number specific to the slave device is stored. A monitor control unit 2 of a master device 1 identifies the slave device according to the number matching collating state of the slave number setting part 14. At the time of exchanging the slave device, the slave device is identified according to the specific number written in the non-volatile memory of the slave device 10, and the slave number is set from the master device 1 in the slave number register according to the order of the connection from the master device 1. Thus, it is possible to monitor control each remote slave device 10 from the master device 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a monitoring apparatus for monitoring and controlling a remotely located child device in a communication system by a parent device.

[0002]

2. Description of the Related Art Conventionally, a monitoring device by polling has been realized for the purpose of remote monitoring control of a child device. FIG. 5 is a block diagram showing a configuration of a conventional monitoring device. When monitoring and controlling a plurality of N child devices with a parent device, it is common practice to assign the child devices with numbers 1 to N with respect to the parent device and manage them. At this time, numbers 1 to N are assigned to the child devices as unique numbers in the system of the parent device. The setting method for the child devices is set by hardware using a dip switch (DipSW). Here, except that the set values of the dip switches are different, all of the child devices 1 to N have the same function, performance, and configuration.

For example, when a parent device as a relay device for relaying a radio signal to a place where radio waves are invisible and a plurality of child devices that are subordinate to the parent device are considered, the child device is, for example, in a tunnel or above the ceiling of a building. Is often installed in an environment where it is difficult to access because of easy maintenance. In setting the numbers of a plurality of child devices, numbers 1 to N are assigned under management without duplication corresponding to the installation location in advance, and DIP switches are set according to the values.

An example of the monitoring process will be described with reference to FIG.
The parent device 50 includes a monitoring control unit 51, a transmission processing unit 52, an optical transmission / reception unit 53, and a display / operation terminal 54. Child device 60
Has 60-1, 60-k, and 60-N. Here, k in each component number is a number sequentially assigned from 1;
A number greater than 1 is assigned to k as a natural number, and the largest number is N. That is, the optical transmission / reception units of the child device are 61-1, 61-k, 61-N, the transmission processing units of the child device are 62-1, 62-k, 62-N, and the monitoring control unit of the child device is 63-, respectively. Dip switch setting units for setting 1, 63-k, 63-N and child numbers are 64-1, 64-k, 64-N.

When the parent device 50 monitors a plurality of child devices 60 having the same configuration by boring, each child device 60 (6
0-1, 60-k, 60-N) must be assigned logically different numbers without duplication. Conventionally, prior to installation in the manufacturing stage or on-site, management is performed so that the same number is not assigned to each of the child devices 60 due to the distance from the parent device 50 and the difference in arrangement on the construction drawing. Then, based on the management contents, a method of individually setting a monitoring logical number for each child device 60 by a dip switch is adopted.

Thus, when monitoring and controlling the child device 60-1 designated as No. 1 by the parent device 50, the No. 1 information is passed to the transmission processing unit 52, and the transmission processing unit 52 performs communication between the parent and child. Is processed into the multiplexed signal specified by the
3 and is converted into an optical signal. The optical signal is received by the optical transmitter / receiver 61-1 of the slave device 60-1 connected via the optical fiber 70, and is converted into an electric signal. The converted electric signal is separated and processed by the transmission processing unit 62-1 and the child number 1 decoded by the monitoring control unit 63-1 is changed to the child number setting DIP switch unit 6-1.
Since the value 1 is equal to the value 1 set in 4-1, the child device 60
-1 indicates that the own device has been designated. As a result, from the child device 60-1, the monitoring information in the own device is sent to the transmission processing unit 62-1 to be multiplexed and converted into an optical signal. 5
3, converted into an electric signal, decoded by the monitoring control unit 51, and the monitoring information of the child device reaches the parent device 50. Here, the child number specified by the parent device 50 is
If it is not equal to the set value of the dip switch set to 1, it is determined that a child device 60 other than itself has been specified. As described above, by using the dip switch, it is possible to monitor a plurality of child devices by bowling.

[0007]

However, in the setting by the DIP switch, for example, when a certain child device 60 is replaced due to a failure, the DIP switch must be set with the same number as that of the original child device 60. There has been a problem that the monitoring and control of the child device cannot be performed correctly, or the monitoring and control of the child device 60 cannot be performed correctly when the connection relationship between the child device and the parent device is changed. Further, in the environment of the slave device 60 installed in the above-mentioned place, there is a problem that setting of the DIP switch involves a difficulty in operation and troublesome number management.

[0008] In order to solve the above-mentioned problems, it is an object of the present invention to provide a monitoring device which can easily set the number of a child device and can cope with connection and replacement of the child device.

[0009]

In order to achieve the above object, a monitoring device according to the present invention is a monitoring device in which a parent device monitors polling of a plurality of child devices and remotely monitors and controls the child devices. Is a monitoring control unit that performs polling monitoring by assigning a unique child number to each of a plurality of child devices, a transmission processing unit that demultiplexes a signal from the monitoring control unit, and a signal from the transmission processing unit according to a communication medium. A transmission / reception unit for transmitting / receiving signals; a transmission / reception unit for transmitting / receiving a signal transmitted according to a communication medium; a transmission processing unit for demultiplexing a signal from the transmission / reception unit; and decoding / controlling the transmitted signal A monitoring control unit that performs monitoring control of the child device based on a nonvolatile number unique to the child device. According to the above configuration, since the child number is set based on the non-volatile number unique to the child device, it is not necessary to set switches on site at the time of maintenance of the child device, and polling monitoring of the child device can be performed inexpensively and easily. Will be able to do.

[0010] Further, there is provided a reading means for reading a nonvolatile unique number previously assigned to the child device, and a reading means for reading and writing the volatile number given by the monitoring control unit. May be configured to monitor and control the child device based on the matching check of the numbers of the reading means and the reading means. According to the above configuration, the number of the child device can be monitored and controlled by matching the numbers of the reading means and the reading means.

The monitoring control unit of the parent device includes management means for storing a nonvolatile unique number and a volatile number for each of a plurality of child devices. By setting a child number corresponding to the device, the parent device may perform monitoring control in response to a power failure or replacement of the child device. According to the above configuration,
Since the parent device can determine whether the volatile number has been initialized, the parent device can detect any abnormality in the child device.

The signal transmission / reception units of the parent device and the child device each have an optical transmission / reception unit, and can be configured to perform monitoring control remotely via an optical fiber.

The signal transmitting / receiving units of the parent device and the child device each have a transmitting / receiving unit for a metallic communication line, and can be configured to perform monitoring control remotely via the metallic communication line.

The signal transmitting / receiving units of the parent device and the child device may each have a transmitting / receiving unit for wireless communication, and may be configured to remotely monitor and control by wireless communication.

The parent device can monitor and control a plurality of remote child devices via each of the communication media.

[0016]

(Embodiment 1) Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the monitoring apparatus according to the first embodiment of the present invention. As shown, the parent device 1 has a monitoring control unit 2, a transmission processing unit 3, and an optical transmission / reception unit 4, and a display / operation terminal 5 is connected.

A plurality of child devices 10 (10-
1, 10-k, 10-N) are connected. K in the configuration numbers of the plurality of child devices 10 is a number sequentially assigned from 1, a number greater than 1 is assigned to k as a natural number, and the maximum number is N. Each child device 10-1, 10
-K and 10-N have optical transmission / reception units 11-1, 11-k, 1
1-N, transmission processing units 12-1, 12-k, 12-N, monitoring control units 13-1, 13-k, 13-N, and child number setting units 14-1, 14-k, 14-N Provided. Parent device 1
Optical transmission / reception unit 4 and each of the child devices 10-1, 10-k, 10-
An optical fiber 18 is connected between the N optical transmission / reception units 11-1, 11-k, and 11-N, and communication between the parent and child devices is performed by an optical signal transmitted through the optical fiber 18.

FIG. 2 is a block diagram showing the internal configuration of the child number setting unit 14. Memory control unit 2 of child number setting unit 14
1 is connected to the monitoring control unit 2. This memory control unit 21
Is connected to a nonvolatile memory unit 22, a child ID register unit 23, and a preliminary number register unit 24.

When the parent device 1 performs polling monitoring of a plurality of child devices 10 having the same configuration, it is necessary to assign logically different numbers to the respective child devices 10 without duplication. In the present embodiment, manual setting is not performed on the child device 10 side, and the logical number of the child device 10 assigned for monitoring by the monitoring control unit 2 is set as a number unique to the child device 10 in the nonvolatile memory unit 16. Is automatically given using the value stored in the. The child ID unique to the child device 10
As the number, an individual value is stored in the nonvolatile memory unit 22 at the time of manufacturing the child device.

Specifically, the display / operation terminal 5 of the parent device 1
Or when the monitoring and control of the child device 10-1 designated as No. 1 by the polling instruction of the monitoring and control unit 2 of the parent device 1 without the display / operation terminal 5 is performed.
Is the information of the first child device (the value "0" in the description here).
To the transmission processing unit 3. The transmission processing unit 3 processes the signal so as to become a designated multiplexed signal in the parent-child communication, converts the signal into an optical signal by the optical transmission / reception unit 4, and transmits / receives the optical signal of the child device 10-1 connected via the optical fiber 18. The signal is received by the unit 11-1 and converted into an electric signal.

The converted electric signal is transmitted to a transmission processing unit 12-1.
The child number 1 separated by the monitoring control unit 13-1 is separated from the child number register unit 24 of the child number setting unit 14-1.
Is compared to the value of The child number register section 24 is volatile, and when power is turned off, all 0s, that is, the child number 1
It is turn.

The logical number 1 from the parent device is the first child device number for boring monitoring, and the child number setting section 14-1.
Since the child device 10-1 is equal to the value 1 set in the child number register unit 24, the child device 10-1 knows that its own device has been designated. As a result, the non-volatile memory unit 2
2 and the number unique to the child device (here, “1000” for explanation) read out to the child ID register unit 23 and the monitoring information in the own device to the transmission processing unit 12-1 and multiplexed with the monitoring signal. Then, the signal is converted into an optical signal by the optical transmission / reception unit 11-1 and transmitted to the parent device 1 via the optical fiber 18. The parent device 1 receives the optical signal in the optical transmission / reception unit 4, converts the signal into an electric signal, is demultiplexed in the transmission processing unit 3, and is decoded by the monitoring control unit 2 so that the monitoring information of the child device reaches the parent device 1. . Then, the child ID number “1001” unique to the child device corresponding to the child number 1 is stored in the management table of the monitoring control unit 2 of the parent device 1.

Next, the child device number k is designated, and the child number setting unit 1 of the child device k (10-k) is operated in the same procedure as described above.
The value read from the 4-k child number register unit 24 is compared with the designated value “k”. At the beginning, they are all 0 and there is no match. Since the child number 1 has already been set, k (K = 2 to N-1) is set in the child number register 24. A unique number “100k” read from the non-volatile memory unit 22 to the child ID register unit 23 together with the set value “k” of the child number register unit 24 from the child device k.
And the monitoring information in the own device to the transmission processing unit 12-k,
In the same procedure as described above, the child ID number “100k” unique to the child device corresponding to the child number k is stored in the management table.

Hereinafter, the same processing is performed up to the child number N in the same procedure. In this way, the N child devices 1 connected
For 0-1 to 10-N, child numbers 1 to N are
It is automatically provided without going to the installation location of the child device, and the boring monitoring of each child device 10 can be performed.

Here, consider a case where a power failure occurs in a certain child device j. The values of the child number register 24 of the child number setting unit of the child device j are all 0, that is, the child number 1 is in the state. After finishing the (j-1) th monitoring, the parent device 1 designates the child number j. The designated value "j-1" of the child number from the parent device 1 and the child number register of the child number j Part 2
4 does not match the value “0”. Therefore, since the child ID number corresponding to the child device No. 1 (= child number register value 0) in the management table of the parent device 1 is “1000”, the child device j It is found that the value "j-1" should be set in the section 24, and the value "j-1" is set in the child number register section 24. Here, the child number j and the child ID number "1" are set in the same procedure as that of the child device 1.
00j-1 "is held in the management table, whereby the child ID number for the child device j previously written in the management table and the child ID number" 100j- for the newly read child device j are stored. Since "1" is equal, it is known that the child number register section 24 has been initialized in the child apparatus j for some reason, such as a power failure, so that the child apparatus j is not confused with the child apparatus 1. By holding the child ID number unique to the child device in the table, the parent device 1 can correctly monitor and control the child device 10 even when the child device is replaced.

As described above, in the prior art, prior to installation at the manufacturing stage or on-site, each of the slave devices 10-1 to 10-N
On the other hand, due to the distance from the parent device 1 and the difference in arrangement on the construction drawing, there was a troublesome management to avoid giving the same number. However, in the present invention, the troublesome management of the management is troublesome. , And a logical number for monitoring can be automatically set individually one by one without going to the site where the child device 10 is located. Further, it is not necessary to mount a device having an expensive and complicated process such as a CPU on the slave device 10 side, so that the cost can be reduced.

(Embodiment 2) FIG. 3 is a block diagram showing a configuration of a monitoring apparatus according to Embodiment 2 of the present invention. FIG.
, The same components as those in the first embodiment are denoted by the same reference numerals. In this embodiment, the transmission line uses a metallic communication line 30, and communication between the parent and child devices is performed by transmission and reception of electric signals via transmission / reception units 28 and 29 (29-1, 29-k, 29-N). . The details of the child number setting unit 14 are the same as those in FIG.

The multiplexed signal from the transmission processing unit 3 of the parent device 1 is transmitted to the transmission / reception unit 28 and the child device 10 (10-1 to 10-N).
Other than the configuration in which the communication is performed by connecting with an electric signal through the metallic communication line 30 between the transmitting and receiving units 29-1 to 29-N of
Processing after demodulation is the same as in the first embodiment.

(Embodiment 3) FIG. 4 is a block diagram showing a configuration of a monitoring apparatus according to Embodiment 3 of the present invention.

In FIG. 4, the same components as those in the first embodiment are denoted by the same reference numerals. In this embodiment, the antenna unit 32 is provided in the parent device 1 and the antenna unit 3 is provided in the child device.
3 (33-1 to 33-N) are provided, and communication between the parent and child devices is performed by wireless signals. The details of the child number setting unit 14 are the same as those in FIG.

The multiplexed signal from the transmission processing unit 3 of the parent device 1 is transmitted to the radio transmission / reception unit 31 and the radio transmission / reception unit 34 of the child device 10.
(34-1 to 34-N), the processing after demodulation is the same as that of Embodiment 1
Is the same as

[0032]

As described above, according to the present invention, the number setting for the slave device is not performed by hardware such as a dip switch, but based on the unique nonvolatile number assigned to the slave device at the manufacturing stage. This configuration eliminates the need for on-site switch setting during maintenance of the child device, and eliminates the need for mounting an expensive CPU or the like on the child device side, thereby enabling low-cost and easy polling monitoring of the child device. Has an effect that can be.

Further, during operation, a child number is set using a volatile storage means, and the child device is monitored and controlled in a flexible manner in response to a change in connection or the like by a process of matching and collating with a number unique to the child device. Will be able to do things. Further, since the parent device can determine whether or not the volatile number of the child device has been initialized, the parent device is configured to set the child number corresponding to the child device according to the connection order from the parent device when the collation does not match. The device can detect any abnormality or the like in the child device, and can take measures.

Further, with the configuration in which the signal transmission / reception unit and the transmission processing unit are separated, monitoring and control can be performed via various communication media such as an optical fiber, a metallic communication line, and wireless transmission.
The range of application can be expanded.

This eliminates the need for on-site setting of DIP switches during maintenance of the child device, and monitors the boring of the child device in an inexpensive and simple manner without mounting an expensive CPU on the child device. It is.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a monitoring device according to a first embodiment of the present invention.

FIG. 2 is a block diagram illustrating a configuration of a child number setting unit of the monitoring device.

FIG. 3 is a block diagram showing a monitoring device according to a second embodiment;

FIG. 4 is a block diagram showing a third embodiment of the monitoring device;

FIG. 5 is a block diagram showing a configuration example of a conventional monitoring device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Parent apparatus 2 Monitoring control part 3 Transmission processing part 4, 11 Optical transmission / reception part 5 Display / operation terminal 10 (10-1, 10-k, 10-n) Child apparatus 12 Transmission processing part 13 Monitoring control part 14 Child number setting Unit 21 Memory control unit 22 Non-volatile memory unit 23 Child ID register unit 24 Child number register unit 18 Optical fiber 28, 29 Transmission / reception unit 30 Metallic communication line 31, 34 Wireless transmission / reception unit 32, 33 Antenna unit

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5K033 CA01 DA01 DA17 DB12 DB20 EA03 EA07 EC03 5K048 AA00 BA21 CA03 DA02 DB02 DC08 EA16 EB01 GC02 HA01 HA02 5K067 AA41 BB21 BB27 DD17 EE02 EE10 EE22 GG01 HH15

Claims (6)

[Claims] 1. A monitoring device in which a parent device performs polling monitoring of a plurality of child devices and remotely monitors and controls the child devices, wherein the parent device assigns a unique child number to each of the plurality of child devices and performs polling. A monitoring control unit for monitoring; a transmission processing unit for demultiplexing a signal from the monitoring control unit; and a transmission / reception unit for transmitting / receiving a signal from the transmission processing unit in accordance with a communication medium. A transmission / reception unit configured to transmit / receive a signal transmitted according to a communication medium, a transmission processing unit configured to demultiplex a signal from the transmission / reception unit, and a monitoring control unit configured to decode / control the transmitted signal; A monitoring device, wherein the monitoring control unit of the device performs monitoring control of the child device based on the nonvolatile number unique to the child. 2. A reading device for reading a nonvolatile unique number assigned to the child device in advance, and a reading device for reading and writing a volatile number assigned by the monitoring control unit, The monitoring device according to claim 1, wherein the monitoring control unit monitors and controls the child device based on a matching check of the numbers of the reading unit and the reading unit. 3. The monitoring control unit of the parent device includes a management unit that stores the nonvolatile unique number and the volatile number for each of a plurality of child devices, and when the verifications do not match, the connection order from the parent device. The monitoring device according to claim 2, wherein by setting a child number corresponding to the child device in response, the parent device can perform monitoring control in response to a power failure or replacement of the child device. 4. The monitoring device according to claim 1, wherein the signal transmission / reception units of the parent device and the child device each have an optical transmission / reception unit, and can perform monitoring control remotely via an optical fiber. 5. The signal transmission / reception unit of each of the parent device and the child device has a transmission / reception unit for a metallic communication line, and can monitor and control remotely via the metallic communication line.
3. The monitoring device according to any one of 3. 6. The monitoring device according to claim 1, wherein the signal transmission / reception units of the parent device and the child device each have a transmission / reception unit for wireless communication, and can perform monitoring control remotely by wireless communication.