JPH054078Y2 - - Google Patents

Description

[Detailed explanation of the idea]

[Industrial Field of Application] The present invention relates to an abnormality warning device that issues an abnormality warning according to the output states of various sensors installed at various locations in a house. [Prior Art] Sensors used in abnormality alarm devices can be broadly classified into make contact type and break contact type.
When a make contact type detects an abnormality, the contact is made (closed) to set the output state to 0 volts, and in normal conditions, the break state is maintained and a voltage of 5 volts is output. On the other hand, the break contact type operates in the exact opposite way to the make contact type; in normal conditions, the contact is made and 0 volts are output, and when an abnormality is detected, the contact is broken and 5 volts are output. It is. In this way, the abnormality detection output mode differs depending on the sensor, so in conventional abnormality alarm devices, a deep switch is provided for each channel terminal to which each sensor is connected, and when the sensor is installed, the corresponding deep switch can be manually set as appropriate. This was used to distinguish between different sensor output modes. As another method, a setting means and a storage means having a numeric keypad input means are provided, and the output mode of each sensor is registered and distinguished in the storage means by manual operation. [Problems to be Solved by the Invention] However, in any of the conventional techniques, the operator had to distinguish between the output modes of the sensor, and there was a possibility of making a mistake in setting. Furthermore, without prior knowledge of all sensors, it is impossible to set their output modes. [Means for solving the problem] The abnormality alarm device of the present invention has been developed in view of the above problem, and it uses multiple A storage means for automatically sequentially reading out the sensor output states and storing the read sensor output states sequentially in a predetermined area of the memory corresponding to each sensor, and storing the sensor output states when the write control switch is in the non-writing state. The apparatus is provided with an alarm means that issues an alarm when the output state of the read sensor differs from the state of the corresponding sensor stored in the memory. [Operation] When the write control switch is operated with all sensors in a normal state, the normal sensor output state is stored in the memory. Thereafter, when the sensor detects an abnormality and its output state changes, the abnormality is detected from the difference with the stored content in the memory and an alarm is issued. [Example] Hereinafter, the present invention will be described in detail along with Examples. FIG. 1 is a block diagram showing one embodiment of the present invention. In the figure, reference numeral 1 denotes a main body of the abnormality alarm device, which is connected to a central office line L via a terminal block 2.
This abnormal alarm device body 1 is connected in parallel with the main telephone TEL to the central office line L in normal use, but when necessary for testing etc., disconnectors 3 and 4 are connected.
It is now disconnected from this telephone TEL. 5 is a CPU that performs various controls, 6 is a station line circuit that performs incoming call detection, polarity change detection, call collision detection, etc., 7 is a network control unit (NCU) that controls the capture and release of the station line L, and 8 is a 9 is a signal detection unit that detects a response signal and an end signal sent from a center device installed at a reporting destination such as a security company; 9 is a signal generation unit that converts abnormality information according to the activated sensor into a PB signal and outputs it; 10 is a group of sensors that detect abnormalities, 12 is equipped with channel terminals CH1 to CHN to which each sensor 10 is individually connected, and CPU 5
This is an input/output interface unit that sequentially and repeatedly monitors the presence or absence of an abnormality detection signal from the sensor 10 based on the scanning signal from the sensor 10. Note that Table 1 shows specific examples of the sensor 10.

[Effect of idea]

As explained above, according to the abnormality alarm device of the present invention, by operating the write control switch with all sensors in the normal state, the normal sensor output state can be stored in the memory. After that, if the sensor detects an abnormality and its output state changes, it will detect the abnormality based on the difference with the stored content in the memory and issue an alarm, so you can manually distinguish the sensor's output mode at the setting stage. There's no need to do it. Therefore, the installer can install the sensor without any knowledge about the output mode of each sensor, and there is no need to make incorrect settings.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a flowchart regarding the write process of this embodiment, and FIG. 3 is a flowchart regarding the abnormality determination process of this embodiment. 1... Abnormality alarm device, 5... CPU, 10...
Sensor, 11a...Write control switch (lock switch), 11b...Write control switch (non-lock switch), 17...Alarm sound generator, 18...
…EEPROM.

Claims (1)

[Scope of utility model registration request] When the write control switch is switched to the write state, the output states of multiple sensors installed at various locations are automatically read out sequentially and the output states of the read sensors are sequentially stored in a predetermined area of the memory corresponding to each sensor. a storage means for sequentially reading out the output states of the sensors when the write control switch is in a non-writing state; and generating an alarm when the output state of the read sensor differs from the state of the corresponding sensor stored in the memory. What is claimed is: 1. An abnormality warning device comprising: warning means for performing the following.