JP2001243580A - Inspection judgment system for alarm device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the inspection judgment system of an alarm device capable of deciding a sensor with the danger of a fault, improving the work efficiency of an inspection, eliminating the danger of erroneous inspections and deciding the states of the respective sensors. SOLUTION: A first inspection judgment means M5 decides that the inspection is required when a difference between the number of times of the operations within a prescribed period of the respective plural sensors M0 and the number of the times of the operations within the prescribed period of a previous time exceeds prescribed values for the respective sensors. A second inspection judgment M6 decides that the inspection is required when the final operation time of the respective plural sensors M0 is before the prescribed time for the respective sensors. A third inspection judgment means M7 decides that the inspection is required at the time of exceeding durable years for the respective sensors after the installation dates of the respective plural sensors M0.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for judging whether an alarm device is inspected or not, and more particularly to a system for judging whether an inspection of a sensor connected to the alarm device is necessary or not.

[0002]

2. Description of the Related Art Conventionally, there is a mechanical security system that performs security of a security target facility by connecting an alarm device installed in a security target facility and a monitoring device installed in a monitoring center via a line.

Conventionally, when inspecting a sensor connected to an alarm device of such a mechanical security system, a pair of inspectors regularly go to a security destination in a pair, and one person inspects all the sensors of the alarm device. Were put into an abnormal state and a normal state one by one, and each time, a communication was made with the wireless device, and another person checked the lamp or the indicator of the alarm device main body for inspection.

[0004]

Conventionally, the inspection cannot be performed by one person, the work efficiency is low, and it takes time to inspect all the sensors. If a sensor other than the sensor under inspection operates, there is a risk of erroneous inspection. In addition, the state of each sensor between the time of the previous inspection and the time of this inspection is unknown, and it is not possible to determine how long it will operate normally or whether repair or replacement will be required soon. Was.

[0005] The present invention has been made in view of the above points,
An object of the present invention is to provide an inspection determination method for an alarm device that can determine a sensor that may have a failure, improve the work efficiency of inspection, and can determine the state of each sensor without a risk of erroneous inspection.

[0006]

FIG. 1 shows the principle of the present invention.

The counting means M1 separately counts the number of operations of each of the plurality of sensors M0.

[0008] The last operation time storage means M2 stores the last operation time of each of the plurality of sensors M0.

The installation date storage means M3 stores the installation date of each of the plurality of sensors M0.

The criterion storage means M4 stores a predetermined value, a predetermined time, and a service life which are the criterion set for each of the plurality of sensors M0.

The first inspection determination means M5 is provided when the difference between the number of times of operation of each of the plurality of sensors M0 within a predetermined period and the number of times of operation during the previous predetermined period exceeds a predetermined value for each sensor. It is determined that inspection is required.

The second inspection determination means M6 determines that an inspection is required when the final operation time of each of the plurality of sensors M0 is before a predetermined time for each sensor.

The third inspection determination means M7 determines that an inspection is necessary when the installation date of each of the plurality of sensors M0 is before the useful life of each sensor.

[0014]

FIG. 2 is a block diagram showing an embodiment of the system according to the present invention.

In FIG. ₁ , reference numerals 10 ₁ to 10 _{n denote} sensors for detecting opening / closing of a door, detection of intrusion by infrared rays, detection of gas leak, detection of fire, and the like. Address generator 11 detector 10 ₁ to 10 _n respectively more of the detection signal to the detector 10 ₁ to 10 _n respectively added to pre-assigned address to the warning device body 12 I /
Supply to the O interface 14.

The counter section 15 of the alarm device main body 12 counts the number of times of operation of each sensor in a counter corresponding to the address of each of the sensors 10 ₁ to 10 _n and stores the previous count value separately from the present count value. I do. Here, the number of times of operation of the sensor is, for example, the number of times that opening and closing of the door is detected,
This is the number of times intrusion is detected. Last operation time storage unit 16
Storing the final operation time for each s is detector 10 ₁ to 10 _n respectively. Installation date storage unit 17 stores the date that installed and replaced installed in detector 10 ₁ to 10 _n each respectively. Reference value storage unit 18 detector 10 ₁ to 10 _n respectively predetermined value every a predetermined time, stores a determination reference value, such as life. The printing unit prints out the inspection results and the like. The communication unit 20 is connected to a monitoring device (not shown) via a line 21.

Each of the counter unit 15, last operation time storage unit 16, installation date storage unit 17, reference value storage unit 18, printing unit 19, and communication unit 20 is connected to the CPU 22 via the I / O interface 14. The CPU 22 is connected to a clock generator 23 and a memory 24 having a storage area and a work area for operating programs.
Has a calendar and clock state, it controls the alarm device main body 12 the entire operation, performing detector 10 ₁ to 10 _n each inspection process.

FIG. 3 shows a flowchart of an embodiment of the inspection judgment processing executed by the CPU 22. This process is an interrupt process executed at a predetermined time interval such as one week.

In FIG. 3, at step S2, the sensor 1
1 is set to i representing the 0 ₁ to 10 _n addresses.
Next, in step S4, the i-th sensor 1 of the counter unit 15
The difference D is obtained by subtracting the current count value Ci from the previous count value C _OLDi corresponding to 0i, and step S6 is performed.
To change the current count value Ci to the previous count value C _{OLD i}
Then, the count value Ci is reset to zero, and in step S8, it is determined whether or not the absolute value of the difference D is equal to or smaller than a predetermined value αi of the reference value storage unit 18 predetermined for the sensor 10i. Here, if | D |> αi, the detector 10i
In step S10, the sensor 1
0i is registered as a check required.

If | D | ≦ α, the last operation time Ti corresponding to the sensor 10i in the last operation time storage section 16 is stored in step S12 as a reference value predetermined for the sensor 10i from the current time. It is determined whether or not the time is before the predetermined time ti of the section 18 and the final operation time Ti is determined to be the predetermined time ti.
If it is before, it is determined that there is a possibility that the sensor 10i will not operate, and the step S10 is executed.

In step S14, the installation date D corresponding to each sensor 10i of the installation date storage unit 17 and the reference value storage unit 18 is set.
Ai and the service life are added to determine a service life date DMi. In the next step S16, it is determined whether or not the current date YMD exceeds the durable date DMi, and YMD> DMi.
In the case of, it is determined that the sensor 10i has exceeded its useful life, and the step S10 is executed.
Proceed to 18. After executing step S10, the process proceeds to step S18.

In step S18, i is incremented by 1, and in next step S20, it is determined whether or not i exceeds the maximum value n of the address of the sensor. If i ≦ n, the process returns to step S4. If i> n, the inspection determination result is printed out by the printing unit 19 in step S22, and the inspection result is transmitted from the communication unit 20 to the communication line 21 in step S24.
To the monitoring device via.

By monitoring the last operation time and the number of times of detection (the number of counts) of all the sensors installed in each security target facility at the monitoring center, malfunctions due to deterioration of the detection elements and electronic components can be prevented. The reliability of the alarm system is improved because the malfunction can be predicted and the sensor can be checked or replaced before a malfunction occurs.

In addition, step S24 is not provided, and the inspection result is not transferred at the end of the inspection determination process. When the inspector goes to the guard at the time of the periodic inspection, the inspection is performed from the printout by the printing unit 19 of the alarm device main body 12. A configuration for knowing the result may be used.

Further, since a sensor to be inspected can be specified in advance, it is possible for one person to perform an inspection while the security is released, and the efficiency of the inspection can be improved.

Further, it is possible to avoid forgetting to replace a sensor that needs to be replaced, such as a gas leak alarm.

Further, by printing out the inspection result on which the final operation time of each sensor is printed, it is possible to confirm that each sensor is operating properly, and to check the sensor to be inspected or replaced and the operation result thereof. Since the clarification can be made, the inspection work can be performed accurately, and unnecessary misunderstanding of the alarm system by the customer can be eliminated.

FIG. 4 is a block diagram showing a modification of the system of the present invention. In the figure, the same parts as those in FIG. 1 are denoted by the same reference numerals, and the description thereof will be omitted.

In FIG. 4, a communication unit 25 is provided in the alarm device main body 12, and the reference value storage unit 18 and the printing unit 19 are not provided. The CPU 22 does not perform the processing of FIG. 2 and sends the information of the counter unit 15, the last operation time storage unit 16, and the installation date storage unit 17 to the monitoring device 30 from the communication unit 20 via the line 21 in response to a request from the monitoring device 30. Forward.

The CPU 32 of the monitoring device 30 is connected to the clock generator 33 and the memory 34, and through the I / O interface 35, the communication unit 36, the printing unit 19, the count storage unit 38, the reference value storage unit 18, and the last operation time storage. The unit 39 and the installation date storage unit 40 are connected to each other.

The CPU 32 issues a transfer request to the alarm device main body 12 at predetermined time intervals such as one week, and stores the transferred information in the count storage unit 38, the last operation time storage unit 39, and the installation date storage unit 40, respectively. After that, the processing of FIG. 2 is executed.

The inspector inspects and repairs or replaces the sensor which is required to be inspected by the monitoring device according to the inspection judgment result printed out by the printing unit 19 of the monitoring device 30.

Thereafter, the inspector connects the terminal device 50 to the communication unit 25 of the alarm device 12. The terminal device 50 includes a CPU 53 connected to a clock generator 51 and a memory 52.
The communication unit 55, the printing unit 56, and the data input unit 57 are connected to each other through an I / O interface 54. The counter unit 15 corresponding to the repaired or replaced sensor in the alarm device by the input from the data input unit 57,
The contents of the final operation time storage section 16 and the installation date storage section 17 are rewritten, and the inspection ends.

[0034]

As described above, according to the inspection / judgment method of the alarm device of the present invention, it is possible to judge which sensor has a possibility of failure based on the number of operations within a predetermined period. Efficiency can be improved, there is no possibility of erroneous inspection, and the state of each sensor can be determined, which is extremely useful in practice.

[Brief description of the drawings]

FIG. 1 is a principle diagram of the present invention.

FIG. 2 is a block diagram of one embodiment of the method of the present invention.

FIG. 3 is a flowchart of an inspection determination process.

FIG. 4 is a block diagram of a modification of the system of the present invention.

[Explanation of symbols]

M0, 10 ₁ to 10 _n sensor M1 counting means M2 last operation time storage means M3 installation date storage means M4 criteria storage means M5 first inspection determination means M6 second inspection determination means M7 third inspection determination means 11 Address generation unit 12 Alarm device main unit 15 Counter unit 16 Last operation time storage unit 17 Installation date storage unit 18 Service life storage unit 19 Printing unit 20, 25, 36, 55 Communication unit 21 Line 22, 32, 53 CPU 23, 33, 51 clock generator 24, 34, 52 memory

Claims (1)

[Claims] 1. An inspection determination method for an alarm device for determining whether each of a plurality of sensors connected to an alarm device is required to be inspected, wherein counting means for separately counting the number of operations of each of the plurality of sensors. A criterion storage unit that stores a predetermined value that is a criterion set for each of the plurality of sensors, and the number of operations within a predetermined time of each of the plurality of sensors and the number of operations within a previous predetermined time. A check determination means for determining that a check is necessary when the absolute value of the difference exceeds a predetermined value set in the determination criterion storage means for each sensor.