JPH05300613A - Abnormality monitor of switchboard - Google Patents

Abstract

PURPOSE:To obtain an abnormality monitor which monitors the abnormalities from a plurality of unit controllers installed in a switchboard without employing transmission lines, etc., between all the unit controllers and an abnormality display apparatus. CONSTITUTION:A wireless oscillator 3 which oscillates in accordance with an abnormality signal from a unit controller 2 is provided in the unit controller 2. The abnormality of the unit controller 2 is displayed on an abnormality display apparatus 5 in accordance with a signal received by a receiver 4 which receives the wireless signal of the wireless oscillator 3. With this constitution, wirings between all the unit controllers in a switchboard and the abnormality display apparatus can be eliminated and an economical apparatus can be obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an abnormality monitoring device for monitoring abnormality of a switchboard.

[0002]

2. Description of the Related Art FIG. 3 is an overall view showing a conventional abnormality monitoring device. In the figure, 1 is a switchboard, 2 is a unit control device accommodated in the switchboard, 6 is a relay installed in the unit control device and operated by an abnormal signal of the unit control device, 11 is a plurality of the relays 6 A transmission line 5 which is connected to all and outputs the operation state of this relay to the outside is connected to this transmission line, and an operation signal of the relay 6 indicates that the unit control device 2 is in an abnormal state by displaying an abnormality display on the screen 5A. It is a device.

The conventional abnormality monitoring device is constructed as described above, and when an abnormality occurs in any of the unit control devices 2 in the switchboard 1, the relay 6 installed in the unit control device 2 is operated by this abnormality signal. , The operation signal of the relay 6 is transmitted through the transmission line 11 connected to all the relays 6, and the abnormality display device 5
Then, the abnormality display device 5 displays on the screen 5A that the unit control device 2 is abnormal, thereby monitoring the abnormality of the plurality of unit control devices 2 housed in the switchboard 1.

[0004]

In the above-described abnormality monitoring device, the transmission line connected to the abnormality display device 5 is used to monitor the abnormality of all the unit control devices 2 accommodated in the switchboard 1. There is a problem in that it is necessary to connect 11 to the relays 6 in all the unit control devices 2, which causes an excessive cost.

Further, since the relays 6 in the plurality of unit control devices 2 are directly connected to the abnormality display device 5 by the transmission lines 11, the abnormality signal received by the abnormality display device 5 is controlled by any unit control in the switchboard 1. There is a problem that it is not possible to distinguish whether the device 2 is abnormal.

The present invention has been made to solve the above problems, and transmits an abnormality signal of a unit control device to an abnormality display device without passing through a transmission line or the like wired from all the unit control devices. The purpose is to be able to distinguish which unit control device in the switchboard is the abnormal signal.

[0007]

In the abnormality monitoring device according to the present invention, a transmitter for emitting a radio signal in response to an abnormality signal of the unit control device is installed in a plurality of unit control devices housed in a switchboard, A receiver for receiving this radio signal is connected to an abnormality display device, and an abnormality display device is caused to display an abnormality by a reception signal of this receiver.

Further, the transmitters installed in the plurality of unit control devices are caused to oscillate with different signals, and the different signals cause the abnormality display device to indicate which unit control device is abnormal.

[0009]

In the abnormality monitoring device configured as described above, the transmitter arranged in the unit control device oscillates due to the abnormality signal of the unit control device, the receiver receives this radio signal, and the reception signal is abnormal. The unit controller is monitored for anomalies by displaying anomalies on the display.

Further, the transmitters installed in a plurality of unit control devices are caused to oscillate by different signals, and the unit control device is displayed on the abnormality display device by the different signals to determine which unit in the switchboard. It is possible to distinguish whether the control device is abnormal.

[0011]

EXAMPLES Example 1. FIG. 1 is an overall view showing an embodiment of the present invention. In the figure, 1 is a switchboard, 2 is a unit control device accommodated in a plurality of switchboards, and 3 is a unit control device installed in the unit control device. A radio oscillator which oscillates according to an abnormal signal of the device, 4 a receiver which receives the signal of this radio oscillator, 5 a connection line 10 which is connected to the receiver 4 and which receives the signal from the receiver 4 to make the unit control device 2 is an abnormality display device that displays on screen 5A that 2 is abnormal.

In the abnormality monitoring device configured as described above, when an abnormality occurs in any of the unit control devices 2 in the switchboard 1, the wireless oscillator 3 installed in the unit control device 2 oscillates due to this abnormality signal. Then, the receiver 4 receives the signal generated by this oscillation, and the received signal is transmitted through the connection line 10 to the abnormality display device 5
Then, the abnormality display device 5 displays on the screen 5A that the unit control device 2 is abnormal, thereby monitoring the abnormality of the plurality of unit control devices 2 housed in the switchboard 1.

Embodiment 2. FIG. 2 is a perspective view showing an anomaly display device 5 according to another embodiment. The anomaly display device 5 is provided with a receiving portion 5B for receiving a signal from the wireless oscillator 3 oscillated due to an abnormality of the unit controller 2, The receiver 4 and the connection line 10 for connecting the receiver 4 and the abnormality display device 5 are unnecessary.

Example 3. In Example 1, so as to oscillate at different frequencies for each unit control device 2 fitted with a control knob for changing the oscillation frequency to the radio oscillator 3, the receiver 4 that receives this oscillation, in advance which frequencies which A reception signal corresponding to the frequency is sent to the abnormality display device 5 which has registered whether the oscillation is caused by an abnormality of the unit control device 2, and which unit control device 2 is abnormal by the received signal is displayed on the screen 5A of the abnormality display device 5. Switchboard 1 by displaying on
Which of the unit control devices 2 is abnormal is monitored.

[0015]

EFFECTS OF THE INVENTION Since the present invention is configured as described above, an abnormality signal of a plurality of unit control devices housed in a switchboard is transmitted to a receiver without passing through a cable such as a transmission line, and an abnormality display device is displayed. By displaying the abnormality of the unit control device, wiring from all the unit control devices to the abnormality display device is unnecessary, and an inexpensive device can be obtained.

Further, by oscillating at a different frequency for each of the plurality of unit control devices and displaying which unit control device is abnormal according to the frequency on the abnormality display device, which unit control device in the switchboard is abnormal. Can be monitored.

[Brief description of drawings]

FIG. 1 is an overall view showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing an abnormality display device according to Embodiment 2 of the present invention.

FIG. 3 is an overall view showing a conventional abnormality monitoring device.

[Explanation of symbols]

 1 Switchboard 2 Unit control device 3 Radio oscillator 4 Receiver 5 Abnormality display device 10 Connection line

Claims (2)

[Claims] 1. In a switchboard that houses a plurality of unit control devices, a transmitter that is installed in each unit control device and that emits a wireless signal in response to an abnormal signal from the unit control device, and a receiver that receives the wireless signal from this transmitter. And an abnormality display device for displaying an abnormality of the unit control device according to a reception signal of the receiver, and an abnormality monitoring device for a switchboard. 2. The transmitters installed in the plurality of unit control devices respectively emit different radio signals, and the abnormality display device displays an abnormality of the unit control device corresponding to the different radio signals. An abnormality monitoring device for a switchboard according to claim 1.