JPH04265096A - Automatic reporting device - Google Patents

Abstract

PURPOSE:To execute a control sequence for safety security of equipments and devices at the time of executing the abnormality detection and detecting the abnormality by providing the building-in and executing function and the control and output function of a sequence program. CONSTITUTION:When the program mode is discriminated, keyboard input for programming of the sequence program is executed by a sequence instruction input part 4, and the result is displayed. The sequence program is stored in the memory of an operation execution part 5. In the case of the operation mode, sensor input dependent upon a sensor interface part 1 and the sequence operation dependent upon the sequence program are performed, and control and output are performed based on the operation result by a microcomputer part 6 and a control and output part 2. Thus, integrated abnormality detection based on the sensor signal from each sensor channel and sequence control, output, and sending for emergency of an external device where the sensor is arranged are executed by programming and the operation execution of the sequence program.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to an automatic notification device, and in particular detects the occurrence of an abnormal situation in equipment or equipment based on input from an external sensor installed on the equipment or equipment that monitors the operating status, and The present invention relates to an automatic notification device that automatically sends abnormality notifications to contacts via a communication line.

0002

[Prior Art] Conventionally, this type of automatic notification device inputs a sensor signal from an external sensor, and based on changes in this sensor signal, detects abnormalities such as fire, theft, flooding, etc. of sensor installation equipment and equipment. Detects abnormal situations such as breakdowns, and transmits voice and DTMF (DuA) signals via communication lines such as telephone lines.
l Tone Multi-Frequency)
Reports are made using signals and data communication via modem.

[0003] In this case, abnormality detection methods include detecting the presence or absence of an abnormality by opening and closing contacts for each sensor input channel, or using an analog signal such as DC 1 to 5 V to correspond to a physical quantity of 0 to 100%. A method is used in which the presence or absence of an abnormality is detected by setting fixed upper and lower limit values and making a judgment.

[0004] When an abnormal situation occurs, the system-based response method is to have the contact person who received the report go to repair or maintenance. It did not have the ability to do so.

[0005] Furthermore, the content of notifications to contacts is handled independently for each sensor input channel, and there is no function to detect an abnormality based on the states of multiple sensor inputs.

[0006]

[Problems to be Solved by the Invention] In the conventional automatic notification device described above, the function is limited to reporting the notification contents set in advance for each sensor input channel, so it is necessary to In order to detect an abnormality, an abnormality detection circuit or the like is required in external equipment or equipment, and there is a problem in that the automatic notification device alone cannot detect an abnormality.

[0007]Furthermore, it is not possible to generate a control output for the purpose of ensuring safety, such as automatically stopping equipment and equipment depending on the detected content, and it becomes necessary to provide a separate external control device, making it difficult to configure a low-cost system. The problem was that it was difficult.

[0008]

[Means for Solving the Problems] The device of the present invention performs sequence control abnormality detection processing by inputting sensor signals acquired by a plurality of sensors installed in equipment or equipment for monitoring abnormality detection, and An automatic reporting device that automatically reports information to a contact via a communication line, comprising a sensor interface unit that interfaces with the sensor and digitizes and outputs the sensor signal, and equipment in which the sensor is installed. Or a control output section that sends out the control output necessary to ensure the safety of the equipment, a notification control section that sends specified notification contents to the contact via a communication line, and abnormality detection that should be performed on the sensor signal. A sequence command input section for programming and inputting sequence commands necessary for execution of processing and a sequence program related to the report contents; and detecting an abnormality in the output of the sensor interface section based on the sequence program input in the sequence command input section. a sequence calculation execution unit that performs processing calculations; inputting the calculation results of the sequence calculation execution unit and sending the control output to the control output unit; and sending the notification content to the notification control unit; The system includes a microcomputer section that controls the operation of the system.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of one embodiment of the present invention.

The embodiment shown in FIG. 1 interfaces with a sensor installed on the equipment or equipment to be monitored.
A sensor interface section 1 that digitizes and outputs a sensor signal 7 sent out from the sensor, a control output section 2 that sends out a control output 8 necessary to ensure safety when an abnormality occurs in equipment and equipment monitored by the sensor, A notification control unit 3 that sends notification contents to a contact via a telephone line 10, a sequence command input unit 4 that inputs programming instructions for sequence commands to be executed and sequence programs related to notification contents, and an output of the sensor interface unit 1. a sequence operation execution unit 5 that performs predetermined sequence operations such as logical operations, arithmetic operations, time setting/measurement, and counting operations based on the sequence program programmed into the sequence command input unit 1 on the digitized sensor signal;
It is connected to other devices by a system bus 9, and performs integrated judgment on sensor signals based on the calculation results of the sequence calculation execution unit 5, and outputs a control output to the control output unit 2 and notification contents to the notification control unit 3, and The microcomputer section 6 controls the operation of the system.

Next, the operation of this embodiment will be explained.

The sensor interface section 1 interfaces with the sensor under the control of the microcomputer section 6, inputs the sensor signal 7, converts it into digital data, and sends it to the system bus 9.

The control output section 5, under the control of the microcomputer section 6, sends contact ON/OFF signals such as relays to external equipment such as equipment and equipment equipped with sensors via the system bus 9. A control output 8 is output in the form of a pulse train signal, a 1 to 5 VDC analog signal, or the like.

The notification control section 3 connects the telephone line 1 via the system bus 9 under the control of the microcomputer section 6.
It has network control functions related to connections to 0, as well as reporting functions through voice synthesis message generation and data communication.

The sequence command input section 4 has a keyboard and a display for programming the contents of command execution and report contents of the sequence operation execution section 5, and uses the key switches of the keyboard corresponding to the sequence commands to input desired information. A sequence program is input and displayed on a display using a liquid crystal display capable of displaying characters and figures.

The sequence operation execution unit 5 is comprised of a dedicated microprocessor, a program memory for storing the sequence program programmed by the sequence instruction input unit 4, and a data memory for storing input/output data for operation. Sequence commands such as logical operations, arithmetic operations, time measurement, settings, counts, and notification content selection are executed on the digitized sensor signals output by the sensor interface section 1 under the control of the sequence program, and this sequence operation is performed. The results are sent to the microcomputer section 6. In this embodiment, a dedicated microprocessor is built into the sequence calculation execution section 5, but the microcomputer section 6 may also be used for this purpose.

The microcomputer section 6 receives the sequence calculation results from the sequence calculation execution section 5, and makes an integrated judgment on abnormality detection in the equipment and equipment equipped with the sensor, and outputs the above-mentioned information to the control output section 2. It sends out data regarding the control output 8 necessary to ensure safety against abnormalities in equipment and equipment, and on the other hand, sends data to the communication control unit 3 regarding the content of communication to be sent to the contact destination.

In this way, the sequence command input unit 4
With the addition of a sequence program embedding function by the sequence calculation execution unit 5, it is possible to apply any abnormality detection algorithm to sensor signals, send any control output, and program any notification content settings, allowing abnormality detection by integrated judgment. In addition, it becomes possible to set desired report contents.

FIG. 2 is a flow chart for explaining the operation of this embodiment.

There are two types of operation modes in this embodiment: a program mode in which a sequence program is programmed and input, and an operation mode in which an actual automatic notification operation is executed according to a sequence program programmed in the program mode.

By turning on the power and setting the reset, the microcomputer section 6 in FIG.
The subsequent processing is executed and continued continuously.

If the program mode 103 is determined as the operating mode, the keyboard input in step 104 for programming the sequence program by the sequence command input unit 4 in FIG. 1 is executed, and the result of this programming is displayed in step 105. Displayed on the display as output. After being confirmed by this display, the sequence program is stored in the program memory of the sequence calculation execution unit 5 by storing the program in step 106, and the operation mode determination step 102 is performed in step 102.
Return to

In the case of the operation mode 104, the sensor input in step 107 by the sensor interface section 1 in FIG. The control output in step 109 is performed by the computer section 6 and the control output section 2. Furthermore, is there a report from step 110? If the judgment is YES, the microcomputer section 6
The notification control unit 3 outputs the notification in step 111, and if the answer is NO, the process returns to operation mode determination 102 in either case.

In this way, by programming the sequence program and executing calculations, integrated abnormality detection based on the sensor signals from each sensor channel, emergency shutdown to ensure the safety of external equipment equipped with sensors, etc. Sequence control output transmission is executed.

[0026]

[Effects of the Invention] As explained above, the present invention provides an automatic notification device with a sequence program embedding/execution function and a control output function for ensuring safety in the event of an abnormality in equipment or equipment equipped with sensors. This makes it possible to perform abnormality detection through integrated judgment based on the outputs and data of multiple sensors, and to execute control sequence 2 to ensure the safety of equipment and equipment when an abnormality is detected. This has the effect of eliminating the need for control devices for detecting abnormalities and ensuring safety.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of one embodiment of the present invention.

FIG. 2 is a flowchart for explaining the operation of the embodiment of FIG. 1;

[Explanation of symbols]

1 Sensor interface section 2 Control output section 3 Notification control section 4 Sequence command input section 5 Sequence calculation execution unit 6. Microcomputer section 7 Sensor signal 8 Control output 9 System bus 10　　　　Telephone line

Claims (1)

[Claims] [Claim 1] Performs abnormality detection processing in sequence control by inputting sensor signals acquired by multiple sensors installed in equipment or equipment that monitors abnormality detection, and automatically communicates the results via a communication line. It is an automatic reporting device that first reports, and includes a sensor interface section that interfaces with the sensor and digitizes and outputs the sensor signal, and a control output necessary to ensure the safety of the equipment or equipment in which the sensor is installed. a control output section that sends out
Programming input includes a notification control unit that sends specified notification content to a contact via a communication line, a sequence command necessary to execute abnormality detection processing to be performed on the sensor signal, and a sequence program related to the notification content. a sequence command input section for performing abnormality detection processing on the output of the sensor interface section based on a sequence program inputted by the sequence command input section; It is characterized by comprising a microcomputer section that inputs the results, sends the control output to the control output section, sends the notification contents to the notification control section, and controls the operation of the system. automatic reporting device.