JPH06105002A - Data communication system for managing thermal equipment such as boiler - Google Patents

Abstract

PURPOSE:To provide a data communication system for thermal equipment management in which a microphone and a speaker are arranged and information communication in voice is provided. CONSTITUTION:In the data communication system for thermal equipment management such as a boiler, etc., in which a control unit 3 equipped with every kind of sensor to detect the operating state of thermal equipment 2 and to select the operating condition of the thermal equipment 2 based on a signal from every kind of sensor is provided, and managing equipment 5 on a managing station 4 side located at a remote place is connected to the control unit 3 via a modem 7 capable of automatically performing the transmission/reception of data with a communication line 6, the microphone 10 and the speaker 11 are arranged on thermal equipment 2 and managing equipment 5 sides, respectively, and they are connected to switching equipment 8 via the communication line 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat equipment management data communication system for automatically maintaining and managing heat equipment such as a boiler using a public communication circuit.

[0002]

2. Description of the Related Art In recent years, with the development of electronic technology and communication technology, automatic control of thermal equipment has been performed by a data communication system having a microcomputer and a modem built therein. That is,
It is equipped with various sensors for detecting the operating state of thermal equipment, and a control unit for selecting the operating conditions of the thermal equipment based on the signals from these various sensors is provided. The equipment and the control unit are connected to a public communication line via a modem capable of automatically sending and receiving data, and the operating status of the thermal equipment is reported to the management station side in real time for maintenance and management.

However, in the above-mentioned data communication system, in the above-mentioned thermal equipment, the sensor is not attached, for example, the looseness of the fan belt, the noise due to the wear of the bearing, the combustion state of the burner, the cavitation of the water supply pump, etc. Not managed. Therefore, it is the current situation that the maintenance personnel do not know until they are dispatched to the site. In addition, it is difficult to accurately determine a faulty part by sound unless it is a highly experienced and experienced maintenance person.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention has a microphone and a speaker provided on the thermal equipment side and a management station side, respectively, and voice communication can be made mutually via a communication line. An object of the present invention is to provide a data communication system for managing thermal equipment such as a boiler provided with a possible system.

[0005]

That is, the present invention is provided with various sensors for detecting the operating state of a heating device, and selects operating conditions of the heating device based on signals from these various sensors. A data communication system for the management of thermal equipment such as boilers, in which a control unit of a remote control station is connected to the control unit via a communication line via a modem capable of automatically sending and receiving data. In the above, a microphone and a speaker are respectively provided on the heat device side and the management device side, and the communication line is connected to the communication line via a switching device.

[0006]

According to the present invention, the data communication for the operation management of the thermal equipment is temporarily interrupted by operating the switching equipment, and the microphone and the speaker arranged on each of the thermal equipment side and the management equipment side are connected via the communication line. By connecting to the communication line, mutual information communication by voice can be performed.

[0007]

Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is an explanatory view showing an outline of a thermal equipment management data communication system embodying the present invention. In the figure, 1 is a facility site of applicable heat equipment, 2 is a boiler as heat equipment, and 3 is a control unit for controlling the operation of this boiler. Reference numeral 5 denotes a management device such as a computer installed in a management station 4 located at a remote position. The management device 5 is connected to the control unit 3 by a public communication line 6. The control unit 3 has a communication function and is capable of automatically sending and receiving data 7
Data can be automatically sent and received from the control unit 3 to the management device 5 and from the management device 5 to the control unit 3 via the. Reference numeral 8 denotes a switching device, which includes a switch for interrupting data communication between the control unit 3 and the management device 5. Reference numeral 10 is a microphone, and 11 is a speaker, which are arranged on the thermal device 3 side and the management device 5 side, respectively, and are connected to the public communication line 6 via a switching device 8. Reference numeral 12 is a communication line connected to the switching device 8. Reference numeral 9 is a telephone exchange connected to the public communication line 6.

In the above-mentioned structure, various sensors (not shown) for detecting the operating state of the boiler 2 are signal lines not shown, for example, a temperature sensor, a pressure sensor, a flame detection sensor, a water level detection sensor and the like. It is sent to the control unit 3 via the data and used as data for selecting operating conditions. The data obtained from each sensor is compared and calculated by the control unit 3 and stored. Then, when the operation data is sent to the management device 5 according to an instruction from the management device 5 or when a boiler abnormality is predicted or detected, the data is sent to the management device 5 each time.

On the other hand, on the side of the management equipment 5, the operation data of the boiler of the thermal equipment 2 at the site of the facility can be collected by the public communication line 6 as required to prepare a graph / data sheet. On the control unit 3 side, data is transmitted at any time in response to a request from the management device 5. As a result, when it is determined that there is an abnormality as a result of analyzing the sampled data, an alarm is immediately issued and the data is automatically transmitted to the management device 5 to inform the abnormality. At that time, if the boiler is provided with an appropriate display panel and a printing device, the boiler manager at the site can easily obtain the data sheets as daily and monthly reports, and send the necessary information from the management station 4. You can also Further, it is possible to determine the optimum operating condition of the boiler from the obtained data and send it as operation command information from the management device 5 to the control unit 3 to control the operation under the optimum condition.

As described above, after confirming that the operation management of the boiler is normal by mutual data communication between the control unit 3 and the management device 5, the switching device 8 is operated to operate the control unit 3 and the management device. Data communication with 5 is temporarily suspended. Then, the microphone 10 and the speaker 11 are connected to the public communication line 6 via the communication line 12 connected to the switching device 8 to enable mutual information communication by voice. That is, the microphone 10 arranged on the side of the boiler 2 controls the rotating part of the boiler 2, for example, the rotating sound of the fan belt or the bearing of the blower, or the abnormal sound due to the cavitation of the combustion burner or the water supply pump, to the management device 5.
It is transmitted through the speaker 11 provided on the side. Management equipment 5
On the side, a trained maintenance staff listens to the sound during boiler operation and determines whether it is a normal sound or an abnormal sound. If there is an abnormal sound, the abnormal part can be more accurately estimated, the work instruction can be given to the local maintenance personnel or the user through the speaker 11 via the microphone 10, and the result can be immediately reported from the site, so the maintenance time can be shortened and maintenance inspection can be performed. The service of can be improved.

In the above embodiment, the switching to the microphone 10 and the speaker 11 was performed by operating the switch of the switching device 8, but it is also decided that this switching means is performed by the command of the digital signal. It is also possible to use the frequency instead of the switch, or change the phase of the frequency to switch the frequency depending on the implementation.

[0012]

As described above, according to the present invention, the microphone and the speaker are provided on the boiler side and the management station side, respectively, and these are connected through the public communication line, which is not possible in the conventional management data communication system. There wasn't
In addition to noise caused by loosening of fan belts and wear of bearings, abnormal noise caused by malfunction of boiler components is detected by skilled maintenance personnel on the management station side, and work instructions are sent to the site immediately and the results are immediately reported. Boiler maintenance management and service improvement are possible. It should be noted that the operating status at the time of new installation of the boiler or the trial operation after completion of maintenance can be efficiently determined by the skilled maintenance personnel on the management station side by data communication and voice information, and the information can be transmitted mutually. Is.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an outline of a data communication system embodying the present invention.

[Explanation of symbols]

 2. Heat equipment (boiler) 3. Control unit 4. Management station 5. Management device 6. Public communication line 7. Modem 8. Switching device 10. Microphone 11. speaker

Claims (1)

[Claims] 1. A remote control unit 3 is provided with various sensors for detecting an operating state of the thermal equipment 2, and a control unit 3 for selecting an operating condition of the thermal equipment 2 based on signals from these various sensors. In a data communication system for managing thermal equipment such as a boiler, which is connected by a communication line 6 between a management equipment 5 on the side of the management station 4 and the control unit 3 via a modem 7 capable of automatically sending and receiving data, The heat device 2 and the management device 5
A data communication system for managing thermal equipment such as a boiler, characterized in that a microphone 10 and a speaker 11 are respectively provided on the side of and is connected to the communication line 6 through a switching device 8.