JPH01214999A - Information detector - Google Patents

Abstract

PURPOSE:To detect necessary information without being disturbed by information even when unimportant information frequently occurs by sending the information as the signal with a constant time width or above at a time point when a constant period lapses when an information generating means outputs the information. CONSTITUTION:An accident preventing line is set to either of a warning condition or a non-warning condition by a time program. At the time of the non- warning, even when the information occurring at information generating means 14 and 18 is inputted, the information is not immediately outputted, and when the constant time specified beforehand lapses, it is outputted as the signal of a constant time width or above. Thus, even when two inputs or above are executed during the constant period and the constant period is completed, only one signal of the constant time width is sent, the confusion and the delay of the transmission system due to the information to occur frequently based on the going in and out and traffic of a person can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an information detection device that detects information issued at a lower level in a one-layered information system.

[Prior Art] In a hierarchical system such as a security system for a building, various information is generated by information generating means on the lower side, including various sensors placed at building entrances, windows, etc. System management device (substation) via transmission line
It will be sent to. For example, in a crime prevention system, the information generated by a crime prevention control device connected to various sensors and crime prevention lines includes the opening/closing status and locking of doors installed at entrances and exits of buildings and in each room within the building, as well as intrusion alarms. . In order to understand the situation inside a building even in a non-alarm state, the security control device constantly monitors the status of the door and security line, and if there is a change in the status, it outputs this as crime prevention information and sends it to higher-level management. The device receives this information and displays it on a display device such as CR゛■゛.

[Problems to be Solved by the Invention] However, as described above, conventionally, when there is a change in the state of a security line or door etc. consisting of an intrusion detection sensor, this is immediately detected and outputted from the security control device. Therefore, there were the following problems. In other words, many people move inside and outside of building entrances and rooms every day and open and close doors and windows, so sensors are activated and the status of switches attached to doors and windows changes every time they do so. The status of the security line changes. As a result, a large amount of meaningless information is generated, and it is troublesome to distinguish the most important information from the information sent to the management device, and the information transmission system becomes congested, resulting in a delay in the transmission of important information to the console. This will cause inconvenience.

Therefore, when there are employees in the building on a daily basis, if information due to changes in the status of security lines etc. is not detected, the management side will not be able to grasp the status of the entrances and exits of the building and each room, and the sensor There was a problem in that it was not known whether or not the security lines were working properly.

The present invention has been made in view of such problems, and
To provide an information detection device capable of detecting necessary information without being overwhelmed by less important information frequently generated from lower-level information generation means in a hierarchical system such as crime prevention. [It is assumed that

[Step 1 for Solving the Problems] The present invention provides an information detection device that detects information sent from an information generation means placed on the lower side of a hierarchical system, when the information generation means outputs information. The present invention is characterized in that the information is transmitted as a signal having a fixed time width or more when a fixed period has elapsed.

Further, according to the present invention, in a hierarchical crime prevention system, an information detection device that transmits crime prevention information generated in a lower crime prevention line as (+Nj) for a certain period of time or more after a certain number of cycles has elapsed. provided.

In this case, the crime prevention line is set to either the active state or the non-alert state by the time program, and the crime prevention information detection device outputs a signal of 1- for a certain period of time shown in F when the alarm is off, and when the alarm is (for example, at night), there are two constant cycles! ! 11
Regardless of the situation, it is preferable to immediately output information generated on the security line.

[Operation] The information detecting device of the present invention does not immediately output the information generated by the information generating means even if it is manually input, but outputs it as a signal having a width of more than a certain time when a predetermined period has elapsed. Therefore, even if there are two or more inputs during a certain period, a signal with a certain time width is only sent once at the end of that certain period, and this occurs frequently based on people coming in and out, traffic, etc. Congestion and delays in the transmission system due to information can be prevented. Also,
Since the output of the information generating means is detected at regular intervals, it is also possible to check the functionality of the security line including the sensor.

[Embodiment 1] FIG. 1 shows an example of a building management system including an information detection device of the present invention.

This system is used for building air conditioning! Central management device (MS: mask station) 2 that monitors and controls various equipment such as lighting and crime prevention, and comprehensively manages the entire system.
and equipment control equipment such as air conditioning and control equipment installed in the building (
RU: remote unit) 4, a facility management device (fASS) that monitors and controls area substation) 6, and an intermediate management device (SSS: security substation)
8, and the management devices 2.6.8 are interconnected by a control m (control net) 10.

The intermediate management device 8 has an operation unit 11 consisting of, for example, a keyboard, a display 2 consisting of a CRT, and a printer 13 for printing the display contents of the display 12, and is installed at a predetermined location (for example, in a building). It will be installed in the security room). This management device 8 includes, for example, a plurality of crime prevention control devices (Sl (U: security remote 1-unit) + 4) installed on each floor of a building, security control devices installed at entrances and exits of a building, etc. as a lower information detection means. access control device (ACP)
18 are connected via a control signal line (controller bus) 20.

The management device 8 has the function of comprehensively monitoring the status of the information generating means on the lower side and controlling information transmission within the system. By connecting to the higher-level central management device 2 through the control network 1-10, various information can be sent from the management device 8, and advanced data processing and management can be performed. Equipment control equipment 4 for air conditioning, lighting, etc. is sent to the furnace from the management equipment 8 to the equipment management equipment 6 through the control net IO to start/end signals for use of each room.
It is also possible to control the operation of each equipment via the . The end/start of use of each room is set in response to security set/reset (described later) of the security control device 14. The management device 8 will be explained in detail later with reference to FIG.

Next, as shown in FIG.
4. It consists of a J5 headquarters consisting of a power supply 26 and a backup battery 28, and a human output section 30 for connecting external devices and lines. A plurality of security lines 34 including various security sensors 32 are connected.

The security sensor 32 detects intrusion into a building at night, for example, and specifically uses an infrared sensor, an ultrasonic sensor, a microwave sensor, a glass breakage sensor, or the like. These sensors have a normally closed contact (b contact)
and installed at appropriate locations within the building. By connecting in series the security sensors 32 placed in each tenant's room or in common areas such as elevators and stairs, one security sensor 4
Form 5a34. Therefore, if any one sensor is activated, it is a crime prevention alert! ! The human power from a34 to the security control device X4 changes. Thereby, the operation of the sensor 32 can be detected.

In addition, when the security sensors 32 with normally closed contacts are connected in series, if the security line 34 is disconnected, the operation will be the same as that of the sensor and cannot be distinguished.

Therefore, the sensor 33 having a normally open contact (a contact) is
A security line 35 may be formed by connecting a terminating resistor () to J(). can be detected separately.

Furthermore, as monitoring elements by the security control device 14, it is important to check not only intrusions into the building, but also the open/closed and locked states of windows and doors. Therefore, by connecting a sensor 36 that detects the opening/closing and locking/unlocking states of doors, etc., a separate security line 3 can be created.
7 to 1 [constitute.

The security control device 14 has a function as an information detection device that detects input from a security line including the sensor when any of the sensors 32, 33, or 36 is activated according to the operating procedure described below. The detected information is then transmitted to other crime prevention control devices 14 and the higher-level crime prevention management device 8 via the controller bus 20. This allows the center to check the status of the crime prevention line.

The security sensor does not need to monitor the building all the time; for example, in a situation where building facilities are being used regularly, such as in each tenant's room during the day, the security sensor will not monitor the building. In order to switch between monitoring (2 commandments) and non-monitoring (non-alarming) states for each line, the switching input 40 of the security set/reset J is activated by switching the security Fl, etc. or by a higher-level management device. 8 is given to the crime prevention control device 14 as a command from the crime prevention line.When the security control device 14 sets the designated crime prevention line to the non-alert state by this switching operation, the crime prevention control device 14 thereafter uses the detection input from the crime prevention line as a notification. is ignored, that is, a signal for activating the alarm device 42 such as a buzzer is not output.

On the other hand, the access control device 18 is installed near a door that requires a check such as when leaving the room, and a numeric keypad or card reader 19 is installed on the inside and outside of the door, respectively. The operation is to compare the information entered manually by operating the numeric keypad or inserting a card with internal data, and if both ministries agree and the 11 conditions for passing are met, the electric lock at the entrance/exit will be unlocked. be.

Next, as shown in FIG. 3, the intermediate management device 8
A control unit 52 consisting of ROM, RAM, and clock is connected to the control net 10, and a second connection interface 54 is connected to the controller bus 20.
It consists of a UHQ gateway 56. In this example, eight gateways 56 are provided, and information generating devices such as the security control device I4 and the output control device 18 can be connected to each gateway via the controller bus 20, respectively.

A power supply section 58 including a backup battery is connected to the basic section 52, and the aforementioned keyboard +1. Display 12 and printer 13 are connected, and 1
A disk device 60 for storing verification information and the like of the access control device 18 described in 111 is connected. A summary log printer 6 that can print information such as the readiness status of security devices, alarm occurrences, and the registration status of various collation information (summary).
2 is also attached. The management device 8 also includes the security control device 1
In order to generate 7 alarms in response to the alarm signals from 4, a buzzer-like alarm sound generator 64 is provided.

FIG. 4 is a flowchart showing the information detection operation of the embodiment. This is performed as an operation when detecting information from a change in the state of the security line connected to the security control device 14, but it can also be performed in the access control device 18 in the same way.

First, the CPU of the crime prevention control device 14 checks whether the crime prevention line is in a non-alert state or not, and if "No" (alert state), transmits the data input by two people as shown by the connector . In other words, the information sent through the security line is sent out immediately after it is input manually. Is the security line broken? ? In the case of a command state, a change in the single-handed state is checked, and when there is a change, a check is made to see if a predetermined state change (COS) flag is set. If "No", the changed state is checked. is written to the COS area of the memory as data, the COS flag is set, and the next operation is performed.

On the other hand, if there is no change in the human power state or if the COS flag is set, it is determined whether there is human power data (change in security line state) during the next operation, that is, a certain period T.

In detail, check the progress of the constant period T.

If "No", the process returns to the initial state, and when a certain period T has elapsed, it is checked whether the COS flag is set, and if "No", the process returns to the initial state. On the other hand, if “Yes” is available, the CO
Send the S area data and clear the cos flag. Then, it checks the elapse of a certain time t that determines the time width of the transmission output, and when t elapses, it checks whether the data in the COS area and the human data are different, and the result is "No" (
If "Yes" (different), human data is stored in the COS area for state matching, input data is sent, and the state is returned to the beginning.

As a result of the above operations, as shown in Figure 5, the human data based on changes in the state of the security line that occur during a certain period T is
After a certain period of time from the end of the period T, the data is output as transmission data. Therefore, on the center, that is, the management device side, even momentary events such as sensor output, etc.
It is displayed as information that can be fully confirmed by the administrator's eyes using display means such as the following.

Note that the above information detection operation may not be performed by the security control device 14 and the access control device 18, but may be performed by the management device 8 as a detection operation for information immediately sent from the security control device 14 and the access control device 18. good.

According to the above-described embodiment, it is possible to prevent congestion and delays in the transmission system due to the transmission of data that frequently occurs based on people coming in and going out and passing by. At this point, the constant period]゛ is 2
It is appropriate to set the fixed time period to about 0 seconds and the fixed time period to about IO seconds. In addition, by detecting changes in the state of the security line at regular intervals, it is possible to check the functionality of the security line and sensors (healthy check), but if this is the purpose,
It is practical to set T=6 hours and t=about IO minutes.

The period T and the time interval can also be changed by a time program.6 Although the present invention has been described above with reference to embodiments, the present invention is applicable not only to crime prevention systems but also to other hierarchical systems. Further, the configuration of the means for performing the information detection operation and the information generating means, the signals output from these means, etc. are determined as appropriate depending on the structure of the one-layer system.

[Effects of the Invention] Since the present invention is configured as described above, less important information is removed from the information generating means on the lower side of the hierarchical system!
Even if 17i occur frequently, necessary information can be detected without being bothered by them. It also has the effect of being able to check whether the information generating means including sensors and security lines are always +E6.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an example of a building management system including the information detection device of the present invention, FIG. 2 is a configuration diagram of a security control device that functions as an information detection device, FIG. 3 is a configuration diagram of an intermediate management device, FIG. 4 is a flowchart showing the information detection operation of the embodiment, and FIG. 5 is a time chart of human data and transmission output of the embodiment. 2-11 Central management device, 4-11 General equipment control device, 6--General equipment management device, 8-111 Intermediate management device, 10--Control net! -5 12---Display, 13---Printer, 14---1 Security system i, [IL device, 18---1 Access control fil device, 20---Controller bus, 32--- --Sensor. 34---One crime prevention line. Patent applicant Yamatake Honeywell Co., Ltd.

Claims (3)

[Claims] (1) In an information detection device that detects information sent from an information generation means placed on the lower side of a hierarchical system, when the information generation means outputs information, the information is transmitted after a certain period has elapsed. 1. An information detection device characterized in that the information detection device is configured to transmit a signal having a certain time width or more. (2) In an information detection device that detects crime prevention information generated in a crime prevention line placed on the lower side of a hierarchical crime prevention system, crime prevention information generated in the crime prevention line is detected for a certain period of time after a certain period has elapsed. An information detection device characterized in that it is configured to send out the above signal. (3) Claim (3) wherein the signal having a duration longer than the certain time width is output when the crime prevention line is set to a non-alert state.
2) Information detection device described.