JPH0716194Y2 - Multi-contact centralized monitoring device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a device for centralized monitoring of a large number of contacts used for various alarms, temperature / humidity detection, optical sensors, etc. It relates to a device that operates as an interface.

[Prior Art] Conventionally, various contact operation state detection devices have been devised, but the number of contacts that can be detected is small, and as a notification method at the time of detection, lighting of a lamp or buzzer is mainly used Met.

[Problems to be Solved by the Invention] The present invention makes it possible to uniformly detect a large number of contacts, efficiently monitor the detection, and send various notification signals to the outside of the monitoring device. The purpose is to

[Means for Solving the Problems] In order to achieve the above object, for example, a contact of a detection device having a large number of contacts of up to 93 contacts, a personal computer relay terminal transfer unit, a level distribution unit, and a plurality of levels A detection unit including an amplification unit and a level relay unit,
A priority order determination unit, a plurality of level output units, and a level external detection device mounting terminal are provided.

[Operation] A large number of contacts are connected to the level distribution unit via the transfer unit, and distributed to a plurality of levels by the switch operation of the level distribution unit, and then a plurality of level output units and levels are passed through the detection unit and the priority order determination unit. A signal is supplied to the external notification device for each level via the external detection device mounting terminal, and it can be connected to the personal computer from the transfer unit via the personal computer relay terminal.

[Embodiment] FIG. 1 shows a block diagram of a centralized monitoring apparatus of the present invention.

In the figure, C1, C2, ..., Cn are contacts of the detector D, 1
Is a transfer unit, 2 is a personal computer relay terminal, 3 is a level distribution unit, 4 is a detection unit, and 5, 6 and 7 are level 1
Amplifying unit or Level 3 amplifying unit, 8, 9 and 10 are Level 1 relay unit or Level 3 relay unit, 11 is a priority order determining unit,
12, 13 and 14 are level 1 output part or level 3 output part, 1
5, 16 and 17 are level 1 external detection device mounting terminals or level 3 external detection device mounting terminals.

FIG. 2 is a diagram showing a specific configuration of the level distribution unit 3 in FIG. 1 and the connection between the detection contact and the transfer unit.

An embodiment of the present invention will be described with reference to FIGS. 1 and 2. Now, assuming that the contact C1 for detection is turned on, the earth emitted from the transfer unit 1 passes through the contact turned on and returns to the transfer unit 1 via the connection line g1. This earth is sent to the personal computer relay terminal 2 and also sent to the level distribution unit 3.

In the level allocating section 3, in order to allocate to any number of levels (three levels in this embodiment), corresponding to the respective detection contacts C1, C2, ..., Cn, for example, ON like a DIP switch, A switch that can be turned off,
S11, S12, ..., S21, ... Sn1, Sn2, Sn3 are provided in a matrix form, and n connection lines g1, g2, ...
-Gn is a switch group consisting of n switches, S11 ... Sn1, S21, S21
... Sn2, S31 ... S3n are connected to one contact respectively as shown in the figure. The other contact of the switch of each group is commonly connected to the connection lines L1, L2, and L3 connected to the respective groups via diodes.

In this embodiment, by operating each switch, each contact is selectively connected to any one of the level 1 to 3 output lines, L1, L2 and L3.

The detection unit 4 includes amplification units 5, 6, and 7 corresponding to each level and relay units 8, 9 and each level driven by the output of each amplification unit.
Equipped with 10. The output lines L1, L2, L3 of the level distribution unit 3 are selectively connected to the input terminals of each amplification unit.

The output of the relay section is connected to the output sections 12, 13 and 14 of levels 1 to 3 via the decision circuit of the priority order decision section 11.

The priority order determination according to the present invention is realized by the following operation in the priority order determining unit illustrated in FIG. The level 1 priority relay 31, which has the highest priority, operates in response to a signal from the detector to close its relay contact 31a (normally open contact). On the other hand, the level 2 priority relay 32 having the following priority is connected so as to receive the signal of the detection unit through the normally closed contact 31b of the level 1 priority relay 31, so that the level 1 priority relay operates. During the period, even if a signal is generated from the detector that operates the level 2 priority relay, only the level 1 signal is output. Similarly, the level 3 priority relay 33 is configured to receive a signal from the detection unit via a series circuit of the normally closed contact 31c of the level 1 priority relay 31 and the normally closed contact 32b of the level 2 priority relay. Therefore, the relay contact 33a of the level 3 priority relay does not operate when the level 1 or level 2 priority relay is operating.

If an alarm signal for a higher level relay is input during operation of a low level relay, that relay operates,
The relays of the lower level are restored by the operation of the relays of the higher level, and the contacts in series with the operating circuit are opened, so that the alarm operation is stopped. In this way, 2 at the same time
When more than one level of alarm is activated, only the upper level relay is activated.

In this embodiment, the output units 12 to 14 are composed of relays, but a semiconductor circuit or an integrated circuit capable of performing the same operation can be used.

The output of each level output is the external detection device mounting terminal.
Connected to 15, 16, 17. An appropriate external notification device can be connected via these terminals. As an example of the external notification device, it is possible to know which level of contact has operated from the timbre by connecting a device that produces three timbres. It is also possible to identify the lamps with different colors.

[Effects of the Invention] As is clear from the above description, the monitoring device of the present invention enables a large number of detection contacts to be concentrated and monitored at one place. Further, it is possible to provide an alarm device at a place apart from the installation position of the detection contact for monitoring. In addition, connect the personal computer via the personal computer relay terminal, record the operating state of the detection contact according to the procedure for monitoring, operate the external device according to the state, and execute the monitoring operation. You can also

[Brief description of drawings]

FIG. 1 is a block diagram of the monitoring device of the present invention,
FIG. 2 is a diagram showing details of the level allocating unit, and FIG. 3 is a diagram showing details of the priority order determining unit. 1 …… Transfer section 2 …… Personal computer relay terminal 3 …… Level distribution section 4 …… Detection section 5 …… Level 1 amplification section 6 …… Level 2 amplification section 7 …… Level 3 amplification section 8 …… Level 1 relay Part 9 ... Level 2 relay unit 10 ... Level 3 relay unit 11 ... Priority determination unit 12 ... Level 1 output unit 13 ... Level 2 output unit 14 ... Level 3 output unit 15 ... Level 1 external notification device 16 ... Level 2 external Notification device 17 ... Level 3 external notification device

Claims (1)

[Scope of utility model registration request] 1. A large number of contacts provided in a detection device, transfer units respectively connected to these contacts, a personal computer relay terminal transfer unit for relaying a signal from the transfer unit, and an output from the transfer unit. Level distribution unit for distribution, detection unit having a plurality of level amplification units and level relay units, priority determination unit, a plurality of level output units, and mounting of a plurality of level external detection devices for connecting to an external notification device A multi-contact centralized monitoring device having a terminal.