JPS6364199A - Security terminal - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The unreleased 1 is a monitoring center device that detects a contact signal from a detector that indicates a fire or an abnormality of an intruder, and sends an alarm signal via a telephone line, etc. This invention relates to a security terminal device that transmits data to a security terminal.

[Prior Art] Conventionally, in this type of security terminal device, it has been necessary to set in advance whether the contact signal of the sensor connected to the terminal is normally open or normally closed.

In other words, in the case of a sensor that is always set in a normal oven, it is necessary to set it to issue an alarm when its contact is closed, whereas in the case of a normally closed sensor, it must be set to issue an alarm when the contact is opened. It was necessary to set it to issue an alarm at certain times.

[Problems to be solved]

The above-mentioned conventional security terminal devices have the problem of complicating the installation process, as each time the device is installed or replaced with a sensor with a different contact signal, it must be set to normally open or normally closed. Ta.

The present invention has been made in view of the above-mentioned problems.
A device that simplifies installation work by eliminating the need to set whether the sensor contact signal is normal oven or normally closed.
The purpose is to provide terminal equipment.

[Means for solving the problem] In order to achieve the above object, the present invention detects a contact signal from a sensor that notifies an abnormality such as a fire or an intrusion, and sends a notification signal via a telephone line etc. to a monitoring center equipment. The security terminal equipment to be transmitted to the terminal includes a means for detecting and storing the contact state of the sensor at the time of power-on, a stage for constantly detecting the contact state of the sensor, Compare the contact state XF of sensing 2 at power-up with the contact state 1 of the sensor that is being detected in 1-recording, and determine the contact state 2 of these contacts.
means for sending out an abnormality signal when the $ differs, and when this abnormality No.
The configuration includes an L stage that converts the transmitted signal into an alarm signal and sends it out, and an F stage that transmits this alarm signal to the monitoring center device via a telephone line or the like.

[Example] Hereinafter, an example of the unreleased 1!1 will be described with reference to the drawings.

The drawing is shown in Figure 0, which is a block diagram showing the terminal device according to the present embodiment. ! The punishment terminal device can connect two types of sensors.

In the drawings, reference numerals 10-1, 10-2 are connection signal type sensors, and sensor connection terminals 1-1.
1 and 2 are kept as concubines. Sensing = Contact initial state detection storage unit 2-1.2-2 senses with sensor 10-1.10-2; connection terminal 1-1.

1-2, and detects and stores the contact state of the sensor 10-1 and 10-2 at power-on, that is, whether it is a normally open contact or a normally closed contact.

The sensor contact state detection unit 3-1.3-2 detects the sensor 10-
1.10-2 and sensor connection terminal 1-1.

1-2, and is always connected to the sensor 10-1.
．． The contact state of 10-2 is detected.

The contact state comparison section 4-1.4-2 receives the contact initial state signal a- from the sensor contact initial state detection storage section 2-1.2-2.
1, a-2 and the contact status signals b-1゜b-2 from the sensor contact status detection unit 3-1. If so, an abnormal signal c-1°c-2 is sent to the signal converter 5.

When the signal f conversion section 5 receives the abnormality signals t'; c -1, c -2 from the contact state comparison f114-1.4-2,
The signal is converted into a signal that can be received by the monitoring center device, and sent to the transmitter 6 as an alarm signal d. The transmitter 6 receives the signal from the signal-converter 5! ! The notification signal d is converted into a transmission signal e that can be transmitted to the monitoring center device via a telephone line or the like, and is transmitted to the monitoring center device.

According to the power terminal equipment having the above-described configuration, the sensor 10-1
．． The initial contact state of sensor 10-2 is stored in sensor contact initial state j5 detection storage section 2-1.2-2, and the stored contents and subsequent sensor contact state j5 are stored.

Since monitoring is performed while comparing the contact state of the sensor 10-2, it is not necessary to set the contact signals of the sensors 10-1 and 10-2 in advance when installing the device.

In addition, can two types of sensing = be connected in the embodiment described above? ? Although the terminal device shown above is not limited to this, it can also be used for medium-sized sensors or devices configured to connect three or more types of sensors.
The invention can be applied to.

[Effects of the Invention] As explained above, the present invention detects and stores the contact state of the sensor when the power is turned on, and detects abnormalities by detecting whether the contact state of the sensor has changed from when the power was turned on. Because it detects, there is no need to set whether the sensor's contact signal is normally open or normally closed when changing the equipment or replacing a sensor with a different contact signal.
This has the effect of simplifying the installation work.

[Brief explanation of the drawing]

Is the drawing an example of the invention? It is a block diagram showing a 3S end device. 1-1.1-2: Sensor connection terminal 2-1.2-2: Sensing atmosphere contact initial state y5 detection storage section 3-
1.3-2: Sensor contact state detection section 4-1.4-2: Contact state comparison section 5: Signal conversion section 6: Transmission section 10-1.10-2 + sensor

Claims (1)

[Claims] In security terminal equipment that detects contact signals from sensors that notify abnormalities such as fire and intrusion, and sends alarm signals to monitoring center equipment via telephone lines, etc., the contact state of the sensor when the power is turned on is detected. means for detecting and storing; means for constantly detecting the contact state of the sensor; and the stored contact state of the sensor at power-on and the constantly detected contact state of the sensor. means for comparing these contact states and transmitting an abnormal signal when these contact states are different; means for transmitting a transmission signal that can be received by a monitoring center device as an alarm signal when this abnormal signal is detected; 1. A security terminal device comprising means for transmitting data to a monitoring center device via a telephone line or the like.