JPH02183396A - Security sensor - Google Patents

Abstract

PURPOSE:To easily confirm the set sensing level as necessary by using an internal memory consisting of a nonvolatile memory which stores the sensing level and a reading means which can freely read the sensing level by means of a reading request signal received from an external device. CONSTITUTION:A security sensor 1 contains an internal memory 12 consisting of a nonvolatile memory, e.g., an EEPROM which stores a sensing level. Then the sensing level can be freely read out by a read/write means with a reading request signal received from an external device like a security receiver 2. The read/write means also writes freely the sensing level set by the external device. This read/write means consists of a multiplex transmission process part 14. In such a constitution, the set sensing level can be easily confirmed as necessary.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a security sensor used in crime prevention and disaster prevention systems.

[Prior Art] Conventionally, this type of security sensor used in disaster prevention and disaster prevention systems includes sensors such as crime prevention sensors and fire sensors, and a detection process that determines whether the output of the sensor has reached a preset detection level. The detection level of the sensor is adjusted at the time of installation using a level setting volume.

[Problems to be Solved by the Invention] However, in the above-mentioned conventional example, there was a problem in that the setting value of the detection level could not be easily confirmed. That is, when checking the detection level, it is necessary to remove the cover of the sensor gauge and check the set value by the setting polycomb, which poses a problem that checking the detection level is troublesome.

The present invention has been made in view of the above points, and an object of the present invention is to provide a security sensor that allows the set detection level to be easily confirmed as needed.

[Means for Solving the Problems] The security sensor of the present invention includes a sensor such as a security sensor or a fire sensor, and a detection processing unit that determines whether the output of the sensor has reached a preset detection level. The security sensor is provided with an internal memory made of a non-volatile memory for storing the detection level, and a reading means for freely reading out the detection level in response to a read request signal from an external device.

[Function] The present invention is configured as described above, and is provided with a security sensor equipped with a detection processing section that determines whether the sensor output has reached a preset detection level. In addition to providing an internal memory consisting of a memory, the device is also provided with a readout means that allows the detection level to be freely read out in response to a readout request signal from an external device, so that the set detection level can be easily confirmed as necessary. is now possible.

Embodiment] FIG. 1 shows an embodiment of the present invention, in which a sensor 10 such as a security sensor or a fire sensor, and the output of the sensor 10 are inputted via an interface 1-1, and the output of the sensor 10 is set in advance. The security sensor 1 is equipped with a detection processing section 13 that determines whether or not the detection level has been reached, and an internal memory 12 made of a non-volatile memory (e.g., EEPROM) for storing the detection level is provided, as well as a security receiver 2. A readout means is provided which allows the detection level to be read out in response to a readout request signal from an external device such as. In the embodiment, there is also a writing means that allows the detection level set from an external device to be freely written. It is formed by a multiplex transmission processing unit 14 that time-division multiplex transmits data between the security receiver 2 and the security receiver 2 that performs the transmission. The internal memory 12 is also provided with a sensor output data storage section that stores the data output from the sensor 10 as is, and the security receiver 2
The sensor output data can be read from.

Furthermore, the sensor sensitivity can be adjusted on the security receiver 2.
It may also be done by remote control.

Now, in this embodiment, the detection level used for determining the sensor output in the detection processing unit 13 can be read out from an external device as necessary.
Detection level settings can also be easily changed. Furthermore, since sensor output data can also be read from an external device, a multifunctional security system can be constructed.

FIG. 2 shows another embodiment in which the wireless transmitter/receiver 4 can read detection data or sensor output data and write the detection data. A wireless transmitter/receiver 15 that transmits and receives wireless signals is provided. - The wireless transmitter/receiver 4 described in E is provided with an operation switch/1a consisting of a keyboard for controlling input, readout, and writing of detected data, and a data display section 4b that displays readout data, inputted data, etc. It is being Further, the data in the internal memory 12 can be arbitrarily rewritten from the security receiver 2 or the wireless transceiver 4 (OR processing).

FIGS. 3 and 4 show still other embodiments,
In addition to a detection processing data storage section 12a that stores detection data and sensor output data, the internal memory 12 is provided with a self-diagnosis pattern storage section 1.2b that stores pattern data for self-diagnosis. Internal memory 1
The detection processing section 13 is provided with self-diagnosis means for performing self-diagnosis processing based on the pattern data stored in the detection processing section 13. Further, a writing means for writing the detection level and self-diagnosis pattern data set from external devices such as the security receiver 2 and the wireless transceiver 4 into the internal memory 12 is formed in the multiplex transmission processing section 1/3. There is. It goes without saying that the data in the internal memory 12 may be read out from an external device and displayed.

On the other hand, the above-mentioned pattern data for self-diagnosis is formed of time data and diagnostic data, and the detection processing unit]-
3 is composed of an analog value judgment processing section 20, a sensing processing section 21, and an analog value generation section 22. Here, a check signal (a signal that generates a state change in the event of a fire) is generated by the analog value generator 22 based on the time data and the diagnostic data, and this check signal is transmitted to the check element (for example, In the case of a thermal sensor, the voltage is applied to a heater for generating hot rays to create a pseudo abnormal state, and the operating state of the sensor 10 and the detection processing section at this time is determined by the analog value judgment processing section 20, This determination result is sent back to the security receiver 2 via the multiplex transmission processing unit 4 along with the diagnosis result.In addition, various sensors are used as pattern data for self-diagnosis.
0, sensitivity and type are stored in the internal memory 12, predetermined pattern data is read out to diagnose the sensing function, and the security sensor 1
If the judgment cannot be processed within the security receiver 2
The analog signal data output from the sensor 10 may be time-division multiplexed and the security receiver side may diagnose the sensing function. Furthermore, it is also possible to set four temperatures per unit time as pattern data for diagnosis, and check whether a predetermined sensing function can be obtained.

FIG. 5 shows an example of the configuration of the wireless transceiver 4.
Arithmetic processing unit 31, R8232C interface 31, data bus interface 32, and operation switch 4a
and an operation display section 33 equipped with a data display section 4b;
It is formed by a data memory 34 and a wireless transmitting/receiving section 35, and stores a plurality of detection data, operation data, etc. inputted from the external bag W5 or the operation display section 33 in the data memory 34, and stores them in a predetermined manner by the arithmetic processing section 30. The security sensor performs arithmetic processing and performs predetermined data transmission with the security sensor.

The operation of this embodiment will be explained below. Now, the security receiver 2 transmits data by time division multiplexing to and from a plurality of security sensors, and when any of the security sensors 1 receives an alarm signal, the alarm lamp,
An alarm means such as an alarm buzzer is activated to notify the occurrence of an abnormality, and each security sensor 1 is controlled. 1 of the control of this security sensor 1
Another example is self-diagnosis control in which a self-diagnosis request signal is transmitted from the security receiver 2 to each security sensor 1 to self-diagnose the sensing function. The self-diagnosis control includes an automatic check mode in which a self-diagnosis request signal is transmitted to each security sensor 1 at regular intervals, and a manual mode in which a self-diagnosis request signal is transmitted by operating a test switch.

Here, the self-diagnosis of the sensing function performed by each security sensor 1 is performed based on the self-diagnosis pattern data stored in the internal memory 12, and the diagnosis result of the sensing function is transmitted by multiplex transmission. Processing part 1
4 and is sent back to the security receiver 2.

FIG. 6 shows still another embodiment, in which a timer circuit 16 is provided to automatically switch the operations of a plurality of types of sensors 10a and 10b, and a time schedule for switching the operations is stored in the internal memory 12. It is a thing,
In the embodiment, 10a is a smoke sensor; 1. Ob is a thermal sensor, and both sensors 1. Fire detection is performed based on the Oa, , 10b outputs. Here, in the embodiment, the sensor 1 is transmitted by the wireless transmitter/receiver 4.
．． The operation of Oalob can be changed manually using the operation switch 4a, and the time schedule can be selected using the operation switch 4a.
The operation switching signal and selection signal are received by the wireless transmitter/receiver 15. Note that the tights\schedule stored in the internal memory 12 may be rewritten using the wireless transceiver 4.

The operation of the embodiment will be described below. Now, smoke sensor 10a, heat sensor 1. In the case where a sensor 10a, ], and Ob are provided to reliably detect the occurrence of a fire, it may be convenient to switch the operating states of the sensors 10a, ] and Ob depending on the situation at the site.

In other words, in the case of the security sensor 1 installed in a conference room, there is a risk that it may detect cigarette smoke and malfunction, so the operation of the smoke sensor 10a is stopped and only the heat sensor 10b is activated. It is better to do fire detection. Therefore, in this embodiment, the timer circuit 16 automatically switches the operations of the sensors 10a and 10b according to a predetermined schedule, so that optimal fire detection can be performed depending on the situation. Here, when the operation switch 4a of the wireless transmitter/receiver 4 is operated,
Using the schedule table provided in the wireless transmitter/receiver 4, the schedule data corresponding to the operation switch 4a is read out, transmitted to the security sensor 1 as a wireless signal, and written into the internal memory 12. The timer circuit 16 switches the operations of the sensors 1Qa and 10b at predetermined timing according to the time schedule written in the internal memory 12.

As shown in F below, in the embodiment, multiple types of sensors 1 are used.
0a, 1. Since sensing is performed by automatically switching the operation of Ob according to a predetermined time schedule, it is possible to perform the optimal sensing operation according to the situation, and it is possible to construct a security system with fewer malfunctions.

[Effects of the Invention] The present invention is configured as described above, and is provided with a security sensor equipped with a detection processing unit that determines whether the sensor output has reached a preset detection level. In addition to providing an internal memory consisting of a memory, the device is also provided with a readout means that allows the detection level to be freely read out in response to a readout request signal from an external device, so that the set detection level can be easily confirmed as necessary. There is an effect that it can be done.

[Brief explanation of the drawing]

FIG. 1 is a block circuit diagram showing a schematic configuration of one embodiment of the present invention, FIG. 2 is a schematic diagram of another embodiment, FIG. 3 is a schematic diagram of still another embodiment, and FIG. 4 is the same as above. FIG. 5 is a circuit diagram of the main part of the same as above, and FIG. 6 is a block circuit diagram of still another embodiment. 1 is a security sensor, 2 is a security receiver, 3
is a signal line, 4 is a wireless transmitter/receiver, 5 is an external device, 1
．． 0, 1.0 a, ], Ob is a sensor, 12 is an internal memory, 13 is a detection processing section, 14 is a multiplex transmission processing section, 15 is a wireless transmission/reception section, ] 6 is a timer circuit. Agent: Patent Attorney Ishi 1) Chief Voluntary author of 7th Procedural Amendment) March 11, 1999 1999 Patent Application No. 3258 2, Name of invention Security Sensor 3, Person making the amendment Relationship to the case Patent applicant residence Address: 1048 Kadoma, Kadoma City, Osaka Prefecture Name (58
3) Matsushita Electric Works Co., Ltd. Representative: Toshio Miyoshi 4; Agent postal code: 530 5; Date of amendment order: 6; Number of claims increased by amendment: None [1] " ,Disaster Prevention,'' will be corrected to ``,Crime Prevention,''. [2] "Processing unit 31" on page 9, line 17 of the above is corrected to "processing unit 30." Agent Patent Attorney Ishi 1) Choshichi

Claims (8)

[Claims] (1) In a security sensor equipped with a sensor such as a crime prevention sensor or a fire sensor, and a detection processing unit that determines whether the sensor output has reached a preset detection level, a non-volatile memory that stores the detection level. What is claimed is: 1. A security sensor comprising: an internal memory; and read means for freely reading out the detection level in response to a read request signal from an external device. (2) The security sensor according to claim 1, further comprising a writing means for freely writing the detection level set from an external device. (3) The security sensor according to claim 1, wherein the detection processing section is provided with self-diagnosis means for storing pattern data for self-diagnosis in an internal memory and performing self-diagnosis processing based on the pattern data. (4) The security sensor according to claim 3, further comprising writing means for writing the detection level and self-diagnosis pattern data set from an external device into the internal memory. (5) The security sensor according to claim 1, 2 or 4, further comprising a multiplex transmission processing unit that time-division multiplex transmits data to and from a security receiver that performs centralized monitoring control. (6) Claim 1 characterized in that a wireless transmitter/receiver is provided for transmitting and receiving data to and from a wireless transmitter/receiver.
, 2, 4 or 5. (7) The security sensor according to claim 3, wherein the pattern data for self-diagnosis is formed of time data and diagnostic data. (8) The security sensor according to claim 1, further comprising a timer circuit that automatically switches operations of a plurality of types of sensors, and a time schedule for switching operations stored in an internal memory.