JPH02130098A - Equipment monitor - Google Patents

Abstract

PURPOSE:To inform a person in charge of operation and maintenance which equipment is troubled at side by responding to a call signal from a radio card and transmitting the trouble equipment information of a trouble storing means towards the radio card. CONSTITUTION:A person in charge of operation and maintenance carried and a radio card 8 and walks about, and thus, when a person 12 in charge of operation and maintenance comes to the range to receive the call signal from the radio card 8, the call signal from the radio card 8 is received, and the trouble information is automatically sent from control devices 3a and 3b,... to generate the trouble towards the radio card 8. Thus, the person in change of the operation and maintenance knows the trouble generation by the buzzer sound of a trouble generating alarm part 10 of the radio card 8 and grasps the trouble equipment and the trouble information by the displaying of a trouble information displaying part 9 and suitably and rapidly executes the trouble recovering work of the trouble equipment.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to an equipment monitoring device that monitors and controls various plant equipment, such as pumps in water and sewage plants.

(Prior art) Conventionally, equipment monitoring devices that monitor and control various plant equipment, such as pumps in water and sewage plants, have been known to transmit failure information to a central monitoring device when a failure occurs in various plant equipment on the site. The information is transmitted through a transmission means, and the central monitoring device displays on a display panel or alarm lamp, etc. the information about what kind of failure has occurred in which equipment. We check to see if a problem has occurred, go to the site where the equipment in question is located, and carry out work to restore the equipment.

(Problems to be Solved by the Invention) However, in such a conventional device monitoring device,
On-site installation of various plant equipment does not have a means of displaying malfunctioning equipment or its malfunction information.
Operators/maintenance personnel have to memorize the failure status of failed equipment confirmed by the central monitoring system, go to the site, and perform failure recovery work there, so new failures may occur before they can go to the site. In such cases, operation/maintenance personnel who go to the site do not notice the newly occurring failure, and it is not until they return to the central monitoring system after performing restoration work on the previously defunct PJ equipment that a new failure occurs. There was a problem in that failure information was obtained and failure recovery work could not be carried out efficiently.

This invention was made in view of these conventional problems, and when an operator/maintenance worker on the central monitoring equipment side recognizes that a failure has occurred in plant equipment, he/she can carry a wireless card with him/her. At the site, when approaching various plant equipment, the call issued from the wireless card will be responded to by the nearby malfunctioning equipment transmitting its failure information to the wireless card, and the wireless card will receive the call. By displaying failure information on the display, it is possible to notify the operation/maintenance department of which equipment is out of order on-site, allowing them to carry out restoration work, allowing for efficient failure recovery work. The purpose is to provide

[Structure of the Invention] (Means for Solving the Problems) An equipment monitoring device of the present invention includes a wireless card having a failure equipment display section, a failure occurrence alarm section, and a signal transmission/reception section, and various plant equipment. fault information storage means for detecting a fault in the fault storage means and storing fault information of the faulty device; and the call from the wireless card responds to a signal and directs the faulty device information in the fault storage means to the wireless card. and a device control device having a transmitting and receiving means for transmitting a signal.

(Function) In the equipment monitoring device of the present invention, when an operator/maintenance person approaches the equipment control device, faulty equipment information in the fault information storage means provided in the equipment control device is stored from a wireless card carried by the person. The call is sent to the wireless card in response to the signal, and the wireless card receives it and displays the failed device information on the failed device display section, and operates the failure alarm section for operation/maintenance. It is possible to notify personnel of the occurrence of a malfunction.

Therefore, when the operation/maintenance U carries a wireless card and passes near various equipment at the site, the failure information is given from the equipment control device where the failure has occurred, and it is possible to detect the failure of various plant equipment at the site. The failure information can be obtained.

(Example) Hereinafter, embodiments of the present invention will be explained in detail based on the drawings.

FIG. 1 shows an embodiment of the present invention, in which a device monitoring device 1 includes control target devices 2a, 2b, such as pumps, for example.
, . . . are provided with controls 3a, 3b, .

Each of the control devices a, 3b, . . . is equipped with a control circuit 4a, 4b, . 2a, 2b, . . . are provided with protection devices 5a, 5b, . . . for monitoring their respective operating states. Furthermore, each of the protection devices 5a, 5b, . . . has a failure display device 6a, 6b for giving a failure occurrence alarm.
, . . . and transmitting/receiving devices 7a, 7b, .

As shown in detail in FIG. 2, the wireless card 8 has a failure information display section 9, a failure occurrence alarm section 10, and a built-in transmitter/receiver 11. It is designed to send out. Note that this wireless card 8 has a built-in digital arithmetic circuit such as a CPU and its storage device, and its overall size depends on the operation/controller.
It is extremely small and thin enough that even maintenance workers can store it in their work clothes pockets.

The operation of the device monitoring device having the above configuration will be described next.

The operator/maintenance worker stores the wireless card 8 in the pocket of his/her work clothes and goes to the various controlled devices 2a, 2b, . When attempting to perform inspection or maintenance work on a faulty device, such as going to the site and going to the location of the target faulty device, for example, the controlled device 2a, to repair or restore the faulty location. If, before reaching the target controlled device 2a, the device also passes by the controlled devices 2b and 2c, when the central monitoring device is looked at, it is likely that only the controlled device 2a has a failure. However, if by the time you go to the site, another failure has occurred in the controlled equipment 20, the transmitting/receiving section 11 of the wireless card 8 sends a signal to the transmitting/receiving device 7C of the control device 3C. Tamotsu: f! The device 5C responds to the challenge signal from the wireless card 8, and transmits the failure occurrence information and the failure information of the control pair 9 device 2C from the transmitting/receiving device 7C to the wireless card 8.

The front card ε3 receives the wireless information from the control device 3C by the transmitting/receiving unit 11, displays the failure information on the display unit 9, and sends a failure alarm to the failure light 1 alarm unit 10.
This occurs and is brought to the attention of the operation/maintenance personnel 12.

Then, in response to the failure alarm from the failure alarm unit 10, the maintenance staff 12 performs the operation/'M! A person notices that a failure has occurred in Jll target equipment 2C, takes out the wireless card and 3 from the pocket of work clothes, and looks at the display on failure information display section 9 to learn about the equipment that has failed and the details of the failure. This control target equipment 2 which was created and later failed.
G can also be involved in the restoration work.

In this way, the central monitoring device (not shown) learns that a failure has occurred in a certain controlled device, for example, the controlled device 2a, and the operation/maintenance personnel in the central monitoring room recognize the occurrence. When going to the site for repair work,
Even if a failure occurs in other controlled equipment 2c before arriving at the site, the failure is not displayed on the central monitoring equipment side using conventional equipment monitoring equipment. It is possible to know that a failure has occurred in the generating device 20 when passing near it, and at the same time to know the details of the failure. Device 2C will also be able to be immediately taken over for repair work on-site.

The operation flow of the above equipment monitoring device is shown in a small scale in FIG. 3, and as shown in FIG. 3(a), the protection device 5a.

5j), . . . are activated by inputting a failure occurrence signal (step S1), and display failure information on the display devices 5a, 5b.

. . . and transmits the failure information to the central monitoring device (Steps S2, 83), and stores the failure information in the storage section (Step S4). (step S5).

When the operation/maintenance worker 12 goes to the site and comes near the controlled equipment that is malfunctioning, a signal is input from the wireless card 8, and the protection devices 5a, 5b, . . . transmit and receive malfunction information. The data is not sent from the devices 7a, 7b, . . . to the wireless card 8 (step 86).

On the wireless card 8 side, as shown in FIG. 3<b>, it is activated by turning on the power switch (step 511).
The interrogation sends out a signal (step 512), and the interrogation from the wireless card 8 responds to the signal to the transmitting/receiving device 7a, 7b of one of the controlled devices 2a, 2b, . . .
When a response signal is given from , .
Displays the failure information from the controlled device in which the failure has occurred, which is provided via the transmitter/receiver unit 11 to the transmitter/receiver &7a, 7b, . . .

In this way, when the operator/maintenance person walks around the site carrying the wireless card 8, the call from the wireless card 8 is received when the operator/maintenance person 12 comes within the range where the wireless card 8 can receive the signal. are the control devices 3a and 3b which have received the signal and are malfunctioning.

... is automatically sent to the wireless card 8, and the operator/maintenance person is informed of the occurrence of a failure by the buzzer sound of the failure alarm unit 10 of the wireless card 8, and also displays the failure information display unit 9. This makes it possible to grasp the faulty equipment and its fault information, and perform repair work on the faulty equipment accurately and quickly.

[Effects of the Invention] As described above, according to the present invention, an operator/maintenance worker can easily move from a malfunctioning controlled device to a faulty device by simply passing near various controlled devices at the site while carrying a wireless card. Automatically obtains information and failure occurrence information, issues a failure occurrence alarm to notify operation/maintenance personnel, and displays failure information to notify what kind of failure is occurring in what location, allowing prompt operation/maintenance. personnel to take measures to deal with the failure.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram of an embodiment of the present invention, FIG. 2 is a perspective view of a wireless card used in the above embodiment, FIG. 3(a) is a flowchart showing the operation of the protection device, and FIG. ) is a flowchart showing the operation of the wireless card. 1... Equipment monitoring devices 2a, 2b,... Controlled devices 3a, 3b,... Control devices 4a, 4b,... Control circuits 5a, 5b,... Protection circuits 5a, 5b,...・・Failure display device 7a, 7b, ・・Transmission/reception device

Claims (1)

[Scope of Claims] A wireless card having a faulty equipment display section, a fault occurrence alarm section, and a signal transmitting/receiving section, and a fault information storage that detects faults in various plant equipment and stores fault information of the faulty equipment. and a device control device having a transmitting/receiving device that responds to an interrogation signal from the wireless card and transmits failed device information stored in the failure storage device to the wireless card.