JPS6193763A - Emergency informing device - Google Patents

Abstract

PURPOSE:To improve the reliability by applying an emergency notice and a line fault notice to a notice destination through another telephone line if a fault takes place in the telephone line for emergency information. CONSTITUTION:Each emergency notice device A supervises the output of a sensor 1 at all times and when a change in the output of the sensor is detected due to the generation of fault, the emergency notice data is transmitted from the emergency notice means 2 to the center device of the notice destination B via the telephone line 3 and the notice flag of the emergency notice means 2 is set to 1. When no reply comes even with the elapse of prescribed time and the data is retransmitted three times or more, it is regarded that the fault takes place in the telephone lie 3 and the line fault notice is given from a line fault notice means 6 to a notice destination B via another telephone line 5.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field 1] The present invention relates to an emergency notification device that makes an emergency notification to a specific destination when an abnormality occurs.

[Background Art 1 Conventionally, this type of emergency notification device A has been equipped with a plurality of abnormality monitoring sensors 1 and one of the sensors 1, as shown in Fig.
It consists of an emergency notification means 2 that uses telephone #i3 to make an emergency notification to a specific notification destination B when an output is obtained, and an abnormality is detected when an abnormality is detected based on the output of the sensor 1. Data indicating the number and type of sensor 1 that has been detected is now transmitted to call destination B as emergency report data. However, in such a conventional example, emergency calls were transmitted over a single telephone line 3, so if data was transmitted incorrectly due to an abnormality in this telephone line 3, a false alarm could occur. There was a problem that the emergency call function could not be fulfilled due to communication failure or communication failure.

[Objective of the Invention 1 The present invention has been made in view of the above points, and its purpose is to make an emergency call and a line abnormality report even if an abnormality occurs in the emergency call telephone line. An object of the present invention is to provide an emergency notification device that can provide high reliability.

[Disclosure of the Invention] (Embodiment 1) Fig. 1 shows an embodiment of the present invention, which includes a sensor 1 for monitoring an abnormality, and a telephone line 3 at a specific notification destination when the output of the sensor 1 is obtained. In an emergency notification device A similar to the conventional example, which is equipped with an emergency notification means 2 for making an emergency notification via a transmission check means 4 for checking whether the transmission of the emergency notification data is normally performed, and a data transmission A line abnormality reporting means 6 is provided to notify the line abnormality via another telephone screen [5] when the line abnormality is not carried out normally, thereby ensuring high reliability. Incidentally, FIG. 2 shows a specific example of the circuit, and the emergency notification device A includes a central processing unit r!
110, take in sensor 1 output trI10gll, RO
M12, RAM 13, and a network control unit 14 that controls the line changeover switch 15 according to instructions from the central processing unit 10.
The center device of the notification destination B includes a central processing device 20 that processes the received emergency notification data, and a central processing device 20 that records the received data.
A display 22 made of a CRT that displays emergency notifications, a printer 23, and a network control section 24 that controls switching of telephone lines and 3.5.

The operation of the embodiment will be explained below based on the flowchart shown in FIG. Now, the center device of destination B is
Emergency notifications are received by performing data communication with a plurality of emergency notification devices WIA, and in the embodiment, as soon as emergency notification data from emergency notification device A is received, The same reply data as that data is sent back, and the transmission check means 4 of the emergency notification device rItA determines whether this transmission data matches the transmission data, thereby checking whether or not the data transmission was successful. This is designed to prevent data transmission errors. Each emergency notification device raA constantly monitors the sensor 1 output, and when a change in the sensor 1 output due to an abnormality is detected, emergency notification data indicating this abnormality (for example,
(sensor number, type, etc.) from the emergency reporting means 2 to the center device of the reporting destination B via the telephone line 3,
Set the report flag of the emergency caller 82 to 1, wait for a reply from the center device of the call destination B, and if there is no reply from the call destination B even after a certain period of time set by the timer has elapsed. teeth,
Look at the value of counter R1 that indicates the number of retries, and check that the value is 3.
When it is smaller than 1, send the emergency report data again.
If there is a reply from the notification destination within a certain period of time, the transmission check means 4 determines whether the transmitted data and the reply data match, and if they match, the data has been transmitted normally. It is determined that the telephone line 3 has been detected, the telephone line 3 is opened, the data communication is completed, and the notification 7 blowfish is set to 0 to return to normal monitoring operation. On the other hand, if the transmitted data and the reply data do not match, the counter R2 indicating the number of retries is
When the value is smaller than 3, the emergency notification means 2 transmits the emergency notification data again. By the way, when data is retransmitted three or more times due to no reply from destination B or due to a mismatch between the transmitted data and the reply data, telephone screen #1
3, and the line abnormality notification means 6 sends a line abnormality notification via another telephone line 5 indicating that data transmission via the normal telephone line 3 has become impossible on the previous day. hit

By receiving this line abnormality report, destination B
Knowing that an emergency call has been issued and that there is an abnormality in telephone line 3, processing the emergency call and telephone #! 3 can be checked and the reliability of emergency calls can be improved.

(Example 2) The fourth chart shows 7a-chart of another example, when there is no reply data from the center device on the other day of notification until the timer for setting the reception time has expired, or when the data is not sent. When a match with the reply data is not obtained, it is assumed that the data was not transmitted normally, and
The communication channel is immediately switched from telephone screen M3 to telephone line 5 to report a line abnormality, and from now on, when transmitting data from emergency notification device iA to destination B, this line abnormality transmission telephone is used. Data transmission is conveniently performed using the line 5. However, if the abnormality in telephone line 3 is resolved, that fact will be communicated from the center device of destination B to the emergency notification device fiA, and normal data transmission using telephone line 3 will be resumed. . In addition, the emergency notification device r! The iA side may check whether the abnormality in the telephone line 3 has been resolved.Also, in response to data transmission performed via the telephone line 5, the center device may send back reply data and make an emergency call. If it is determined whether the transmission data from ijc A and the reply data match,
Reliability will be further improved.

Effects of the Invention 1 As described above, the present invention includes a sensor for monitoring an abnormality, an emergency notification means for sending an emergency notification to a specific notification destination via a telephone line when the sensor output is obtained, and a sensor for monitoring an abnormality. The device is equipped with a transmission check means to check whether data transmission has been performed normally, and a line abnormality reporting means to report a line abnormality via another telephone line when data transmission is not performed normally. Even if an abnormality occurs in the emergency call telephone line, the emergency call and call #X abnormality report can be made to the destination via another telephone line, resulting in high reliability. .

[Brief explanation of the drawing]

FIG. 1 is a block circuit diagram showing a schematic configuration of an embodiment of the present invention, FIG. −
The chart and FIG. 5 are block circuit diagrams showing a schematic configuration of a conventional example. 1 is a sensor, 2 is an emergency reporting means, 3 is a telephone line, 4 is a transmission check means, 5 is a telephone line, and 6 is a line abnormality reporting means.

Claims (1)

[Claims] (1) A sensor for abnormality monitoring, an emergency notification means for sending an emergency notification to a specific notification destination via a telephone line when the above sensor output is obtained, and checking whether the above emergency notification was made normally. An emergency notification device comprising a transmission check means and a line abnormality notification means for reporting a line abnormality via another telephone line when data transmission is not performed normally.