JPS5843097A - Security system with plurality of access levels - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to security systems and, more particularly, to a method for providing different access levels to a security system.

Generally, in an IF security system, a predetermined digital bus code is used to release the security system so that the security guards and staff working within the system can move freely within the security area. You must enter the access code.

Security area means a factory, a residence, a part of a building, etc. Such secured areas are generally guarded by two different types of security systems. Among them, the security system of Iris 1 is energized, operates 24 hours a day, and includes fire detectors or emergency situation detectors. Indicates suppression of the "panic button" in response to a situation. Other continuously monitored systems include tamper detection equipment and facility monitoring equipment that transmits, records and analyzes data such as building temperature and boiler pressure.

A second type of security system is one that is operated periodically k, for example only at night, or only when the security guard leaves the security facility. This includes volumetric-based security systems that detect movement within a certain area by means of ultrasonic sensors, infrared passive sensors or microwave sensors. The type of system that is operated periodically also includes a detection system that monitors the surroundings of the facility, and more particularly uses door contacts to detect when someone enters the building through a door, for example. There is a point detection system that does this. Vibration detectors detect vibrations from, for example, footsteps or the use of saws and acetylene torch lamps, and glass break detectors operate against someone attempting to break into a building by breaking the glass. Furthermore, for security of safes and the like, detectors for intruders approaching security areas are also used. According to these security systems that operate periodically, guards dispatched from the security company or employees entering and exiting the building can arbitrarily disable the system's security system during off-duty hours. can. However, it is desirable that such security personnel not be given the power to freely operate the entire security system and undermine the reliability of the system; more specifically, all persons who need to enter the building It is undesirable from a safety point of view to give a single bus code to allow entry and exit.

This is because the user can freely perform operations such as resetting the system, bypassing certain security loopholes, and reprogramming the system. Such a state 11.
This is exactly the same as giving a master key that allows unlimited access to m1lFK. Namely.

A single bus code cannot provide different access levels. Therefore, a security system based on a single □ bus code cannot distinguish between the duties of a chief administrative officer and those of a mere manager. To ensure that people can enter the area, it is convenient to operate the security system based on the bus code, which changes almost every day.

When guarding a residence, it is best not to provide anyone with a fixed bus code for entering or exiting the residence outside of authorized hours. For example, in cases where other people enter and exit the residence only during a limited period such as a vacation, in such a case,
Once you inform someone of your fixed bus code, it is the same as giving someone else a master key that can be used at any time.

Thus, security systems that utilize a single bus code have the disadvantage of not being able to provide different levels of access into the building. Additionally, if a single bus code is used, all users of the security system must be notified in the first place if the bus code is changed to create a situation where they temporarily gain access to the building. It's inconvenient because you have to do it.

In the security system of the present invention, at least two
There are two access levels. Therefore, the user with the highest authority can control all functions of the security system at will, but restrictions are placed on other users. For example, it is possible to reset all or some of the sensors used in the security system, bypass the loop, and reset all or some of the sensors used in the security system, as well as release part of the entire system with a fixed/f code. , and a temporary skort.

On the other hand, when using a temporary bus code, it is only possible to disable part of the security system; for example, a latched fire alarm sensor in the 24-hour security loop If there is, then the first emergency gi = has already been avoided, 9 was a false alarm, and the person who makes the decision on force 1 is usually a very high-ranking person, so no one other than the chief administrative officer of the facility is responsible. It is unwise to allow a user to reset such a sensor; furthermore, entering auxiliary access that temporarily reprograms the entire system compromises the security of the system.

In one embodiment of the invention, a four-digit code is selected and permanently stored in programmable read-only memory (FROM). A code consisting of a four-digit number is used to communicate the sensors included in the so-called night loop, as well as telephone reporting devices that report alarm conditions to, for example, a police station, fire department, or central monitoring center in a remote location. Make the machine inactive and place it in the “security area”
Selectable functions can be accessed, including the alarm override function and the "outside the security area." An alarm can be issued immediately by entering a numeric code to cancel the delay.Furthermore, the 4-digit numeric code can be used to detect equipment surroundings detection loop, motion detection loop, and bypass security loops such as detection loops to ensure safety within the security area:
I can do things. By entering a code consisting of four digits, it is also possible to operate the security system in test mode. This test mode often exhaustively tests all sensors utilized in the system. A temporary bus code can be entered or deleted using a four-digit code. The fixed bus code, which consists of four digits, also serves to reset the entire security system;・It's crowded. - Temporary passcodes, on the other hand, only provide an alarm override function that deactivates some alarms to allow general personnel access to the facility. The use of a temporary passcode may also be used to interrupt communication of alarm conditions to remote locations. In addition, the temporary/'f code may be used to cancel an unlatched alarm condition, such as when an emergency bell is accidentally pressed by a member of the public. For example, in the event of a latched alarm condition such as a fire or unauthorized entry detected by the sight needle, the general employee should @V, x, Preventing the safety of people from being compromised.
As a precautionary measure, the alarm cannot be canceled by ordinary employees. Therefore, a person who happens to be present at the scene cannot stop the operation of photoelectric sensors and the like in the electric fence used to protect the floor of a given facility. .

In one embodiment of the invention, entering a temporary passcode does not affect 2424-hour security.

A cow that enters the security area at that moment and activates the security loop regardless of whether or not there are people present can be created.

2. Security system by further using passcode.

Giving multiple access,levels to a system gives permissions,
This not only makes it possible to select a looser type of system that can be put into operation 2 or non-operation 2 state by the person who has received the security, but also to prevent the act of canceling the security system by a person who does not fall on the 1.1NJ day. Since the code can be easily changed, only authorized personnel can manage the security system.

Furthermore, Jin and K can create a simple code for temporary passcodes by, for example, forming a fixed bus code from 4-digit numbers and a temporary bus code from 3-digit numbers. This will further increase safety. The security system can be operated based on three or more access four levels,
Low level access is small 2. Operates only on system functions.

In one embodiment of the present invention. For added security, temporary passwords and codes can be stored in erasable memory.

Can be programmed into the device A timing circuit is provided that defines the timing.

As a ninth additional security precaution, if a temporary passcode is not entered in KFi.

The portion of the security system activated by the -1 o'clock bus code is rendered inactive until at least the fixed bus code is entered again and the code key is pressed.

Hereinafter, the present invention will be described in further detail with reference to the accompanying drawings. The aforementioned features and other features of the invention will become apparent from the following description.

I will now explain about Figure 1. In order to provide multiple levels of access to the security system, the security system typically includes a central processing unit 1o and a number of sensors located throughout the security area. The Senna is usually connected to the central processing unit via a multi-wire cable. Sensors are generally classified into two groups. 1s1 group is 1
It is a set of resettable sensors that operate 24 hours a day, 24 hours a day, and is therefore called a 24-hour loop. A resettable senna group "12Fi" shown by dotted line blocks, a fire sensor 14, an emergency bell to be pressed in case a robber breaks into the input, a communication device to notify a remote location of the sudden illness, It includes an emergency sensor 16 having a panic button or the like to further indicate to personnel that some kind of emergency has occurred.

A good news signal is output from the resettable sensor group 12. The entire state and signal transmission are transmitted through a transmission line designated by the reference numeral '8' in the figure. The transmission lines to and from also include command signals and power supplied from the central controller to the resettable sensors.

It is indicated by the reference numeral 20 in the figure. 4The other sensor group is
This is a group of sensors that are operated periodically to detect the presence or absence of intruders in a predetermined area, usually at night.・This group of sensors is further divided into two groups, and the group with irises 1 uses ultrasonic waves. Sensor 24% This is a group of security sensors 22 based on volume measurement, including an infrared passive sensor 26, a microwave sensor 28, and the like. Group 2 is a facility perimeter security sensor/point sensor #30 that is generally installed around a facility to be guarded, and includes a door contact 52 and a glass breakage sensor 54. The point sensors include the vibration sensor 36 and the alarm sensor 68 for the indoor safety alarm device. These sensors must be 4. It does not necessarily fall completely into one or the other of the two aforementioned groups, but rather refers to a type of sensor that is inactive during normal working hours, and operative during off-duty hours. This is explained in detail. These sensors are connected via cables 40 to a central controller 10K, which provides power and control signals to the sensors. The central controller includes a keypad 42, a seven-function dowel 44, and one output of the central controller 10 is coupled to a local display 46. The local display 46 not only indicates that a particular alarm condition has occurred;
It may be configured as a lamp panel to indicate its location, but may also include a siren or the like to audibly indicate a sensed alarm condition. In addition to this local display device, it is also possible to report the situation outside the security area by using the communication device 48. The communication device 48 generally includes:
S* - Contains a telephone system for contacting the police station, fire department, or security company outside the security area. In the dormitory embodiment of the invention, one output of the central control unit is coupled by line 50 through a delay circuit 52 to a communicator. Therefore, a delayed notification method is obtained in which the alarm condition is reported outside the security area only after the entire security area has been determined whether a certain alarm condition should be reported outside the security area.

A fixed bus code 54 is entered via the keypad 42 to activate the entire security system, to turn it into an inactive or inactive state, and to change the functions of the security system according to specific needs. .

For example, if you enter a fixed bus code, it will be ``k''.

Deterrent functions can be obtained to disable the entire security system or parts of it.Additionally, after entering a fixed bus code, it is also possible to reset the resettable Senna group and bypass part of the security loop. . In addition, by entering a fixed bus code, a partial passcode can be programmed into erasable storage within the central control unit to provide a second level of access to the security system. Furthermore - it is also possible to execute test sequences. When using a temporary bus code.

This temporary passcode 56 may also be entered on the keypad 42, but has only limited system modification capabilities, such as inhibiting night security loops, as previously described, the second access level bus code, i.e. Using temporary passcodes makes security easier and
You can temporarily enter the security area during off-duty hours. Communication operation with outside the security area, for example via switch 6°, by utilizing a temporary bus code as schematically indicated by dotted line 58. 1.

A group 20 of sensors are operated periodically via a switch 62.
It is also possible to prevent alarm status signals from being transmitted to the central controller. Further, via the switch 64, local display of the alarm condition can be suppressed. All the switches are there.

Once the temporary passcode is entered into the central controller, it is operative to open the respective associated circuits.

A second look at how such a security system works.
As shown in the figure. In FIG. 2, the same reference numerals as in FIG. K111 are used to indicate the same parts as in FIG. 1. The central control unit 10 has a keypad 42 and a function controller.
- Contains key 447. One of the function keys is a so-called "code key" and when an identification bus code is entered.

In the illustrated embodiment, the keypad 42 is partially connected to a passcode detector 66 and a fixed bus code/7. Axis detector 6
8 and a FunctionKey fixed bus code/function detector 68. In the system shown in FIG. 2, a resettable latch sensor 70 is coupled to a multiwire transmission line 72. The multi-wire transmission line 72 is used, for example, to supply DC power taken out from the DC power supply 74 via the DC power value disconnection circuit 76. Sen? supplied by the dragon ν
The control signal for turning on and off the sensor is generated by a sensor controller 78K which conventionally supplies a control signal to the sensor via one line of a multi-wire cable. Multi-wire transmission @7
A ground wire is also shown as one line at 2. The central controller 10 further includes a sensor status detector 79 coupled to the signal line, which is a single line of the multi-wire transmission line 720.

The sensor state detector 79 is connected to the multi-wire transmission line 72. determine the state of the alarm status signal output from one of the In one embodiment of the invention (not shown), the alarm condition signal through a signal line takes the form of a current drawn from the signal line, such that the current drawn indicates the occurrence of an alarm condition. . The output signal of sensor status detector 79 is applied to local display 46 via signal line 80.

In the illustrated embodiment, the local display device includes a lamp panel or other indicator 82 that indicates not only that an alarm condition has occurred, but also its location. The location of the alarm/condition can be determined by conventional polling techniques, and to this end, a clocked sensor polling location device 84 is coupled to the sensor controller 78 for stroking the various sensors in a time sequence. Or go bowling. When the alarm condition signal arrives at the time the senna is polled, it is detected by the sensor polling position determination device 84 and the senna polling position determination device 84
Light up the corresponding lamp.

The position signal and the alarm status signal are also applied to the communicator 48Vc. The communicator 48 is automatically operated by a trigger signal from the trigger circuit 86 to report a fire station or police IK situation, for example, and to alert the outside of the security area. Includes a telephone notification system that transmits location and alarm status signals to the department.

One of the outputs of the fixed bus code/function detector is multi-wire! Test sequence device 87 coupled to the transmission line
K is supplied to start the test sequence, and
This is a signal that inhibits the sensor control device 78. During testing, test sequencer 87 inherits all sensor control functions and operates the sensors according to a predetermined test sequence. The test sequence is "walk noi"
test or other conventional tests.

An AC power supply 88 is coupled to the senna controller 78K to provide alternating current, current, power to the senna requiring AC power, or to provide a high frequency carrier signal as required.

In the embodiment of FIG. 2, a tamper recognition circuit 94 is coupled to all lines of the multiline transmission line. M! The sensor is not being operated properly! The wired state is also an alarm state, and a signal indicating this is applied to the senna state detector 79 via the signal line 96.

In operation, when a temporary bus code is entered, it is detected by the temporary bus code detector 66. As shown in aI2-k, temporary passcode detector 66 provides an inhibit signal to local display 46 and trigger circuit 86,
Local display and communication with areas outside the security area will be suppressed. When the local display is suppressed, the audible display of the alarm state performed by the speaker 98 is also suppressed. A fixed bus code/function detector 68 also provides an inhibit signal for the same purpose when a fixed bus code is input. However, entering a fixed bus code provides an additional level of access to the system than K.
You can enter a temporary passcode or test the system.

In addition, one fixed bus code/function can be connected to the loop as shown by the line running from the function detector 68 to the sensor controller 78, and all resettable latching sensors 70 can be reset. It is also possible to apply a reset signal. - Same as before,
The resettable launcher can be reset by simply disconnecting the DC power supply to the latching relay coil normally used in the sensor as shown.

The polling function of the sensor, the detection of the logger alarm status signal provided by the sensor, the test sequence,
and loop noise function are provided in the same way as before, so their explanations will be omitted here.6 Features of the present invention are that temporary i4 code is used, and permissible points are formed only in a part of the security system. It means that it will be done.

As shown in the embodiment of FIG. 2, the temporary passcode can only inhibit local display and communications outside the guarded area. 1. On the other hand, inputting a fixed bus code allows 7 additional functions such as inhibition 1, programming, loop pass, test and reset.The considerably simplified system in Figure #N2 is Although this is intended to illustrate the effect of multiple access levels, the number of functions accessible to authorized users varies depending on the security system's purpose.
Although only two access levels have been described with respect to the illustrated embodiment, any number of access levels, including a variety of functions, may be incorporated into the security system within the scope of the invention.

Next, one embodiment of a multilevel bus code system will be described with reference to FIG. Keypad 10 (It
, drives a decoder 102 that decodes the output of the keypad. The general keypad is a numeric input device, unlike the separately provided function keys 104. Therefore, the main function of the keypad is to enter the bus code, and the function keys are used to start the security system,
When there are people in the security area, the security support system provides security when there are no people in the security area, testing the security system, resetting the off percentage of the entry/exit delay notification system, turning off the sound alarm system, etc. Provided for operating functions. Decoder 102 decodes the output of the keypad or function keys and provides the decoded function over one line 106.

The number entered on the keypad and decoded is line 10
8 to the shift register 110. Programmable read-only memory (FROM) 112K
is programmed with a fixed bus code consisting of four digits. FROM 112 is connected to a comparator 114 that compares the fixed bus code with the nine codes input to shift register 110. The fixed bus code is keypad 10 to obtain the first level of access to the system.
0 is input and decoded by the decoder 102, the numbers 1.3 and 2.4, for example, are input to the shift register 110 one after another.
is input. Immediately upon the occurrence of the specified code, comparator 114 generates an output signal on line 116, which output signal is a "full enable" signal for the entire security system. "Full-enabled" means that all system functions can be accessed. As a result, the controller 117, which provides the reset function, loop execution function, and test sequence function specified by the function keys and decoded by the decoder 102, becomes operational. The fully enabled signal on line 116 is
Monostable multivibrator 11 forming a time window, which is the time for programming a temporary passcode
8 is also additionally applied. In one embodiment of the invention, monostable multivibrator 118 lasts for 45 seconds.
7. Generates an output pulse corresponding to an enable t pass of 45 seconds. The output pulses of the monostable multivibrator 118 are stored in a random access memory (RAM) 120.
In this case, the RA is used as an enable pulse to allow a two-part bus code to be written for 45 seconds.
Supplied to M120. The decoder 102 decodes the ``function'' input from the code key, which is one of the 7 function keys, and converts it into a %wE20 level bus code, that is, a temporary bus code, a code consisting of 3 digits in the case of 3 lt, 4M allocated for
Dry the segment operationally. If the keypad 100 is then operated while the 45 second enable pulse from the monostable multivibrator 118 continues.

The decrypted secondary passcode is entered into the designated segment of RAM 120, as shown in FIG. 7.3.5.
A second passcode will be provided. If no second passcode is entered during the 45 second time window defined by monostable multivibrator 118, a zero is entered into the designated storage segment of RAM. Since the security system is configured not to respond to zeros, the temporary passcode system will stop working. Furthermore, if the function key is operated after the code key, the signal on line 106 resets the monostable multivibrator 118, and a function other than the nAM K code function is written. ``As an additional measure to prevent access by unauthorized persons, this book provides a time window of 2, which is the time when functions should be operated the most. Monostable multivibrator 119dl [116 is inserted.

As a result, it is possible to prevent, for example, a situation where a function key is operated after a waiting period after a fixed bus code is input.
This second time delay is 45 seconds, which means that the function key #i must be operated within 45 seconds, and if this time is exceeded, even if the function key is operated, the system will not work. Not entered.

After the secondary passcode has been entered into the RAM 120K, secondary access to the security system can be obtained by entering the secondary passcode on the keypad 100. As soon as the bus code is input into the first six portions of the shift register 110 and matching outputs are obtained from the three RAM segments, one comparator 122
generates an enable signal at level 2 via line 124. The two-level enable signal is an alarm condition detection circuit 126, a zone indicator on, and an indicator circuit 127, which is any audible or visual alarm indicator.
It is used to prevent If one additional communicator is used, the second level enable pulse on line 124 inhibits all night loop inputs provided via gate 129 to delay circuit 128 coupled to communication 9130. do. The communication device 130 is triggered by the input of the night loop or 24-hour loop signal to the circuit 132, and from this point, simply by inputting the fixed bus code, the 24-hour loop signal can be sent out of the security area. The system is given the ability to suppress the functions that are transmitted.The 4 codes on both sides inhibit communication with areas outside the security area, which is different from the system in Figure 1. In an embodiment, the trigger using the temporary passcode blocks the night loop signal, so that the trigger is inhibited from entering the signal.

The 24-hour loop is continuously monitored by the communicator since the 424-hour loop signal is interrupted by entering the temporary passcode. Additionally, the transmission of the 24-hour loop signal is interrupted only when a fixed bus code is entered. Additionally, if you wish to bring the communicator online while entering the Vc and bus code, you can continue transmitting throughout the entire transmission cycle.

Thus, the full enable signal and the yth level enable signal company serve to inhibit the detection and indication of alarm conditions as well as certain communications outside the security area. However, the second level enable signal cannot inhibit the transmission of the 24-hour loop signal or reset the latch sensor such as the hot water sensor, and the entire system cannot be set. There is a high level passcode requirement.

Although the bus code system has been described in terms of complex access levels of L to 16 to 2, multiple access levels with more complex or simpler bus codes may be utilized. One feature of the security system of the present invention is that the output of shift register 110 is applied to keypad lockout circuit 132, which counts the number of inputs to the shift register. For example, in one embodiment, when 1°6 numbers are held in the shift register one after the other, the decoder 10
2 stops working for 1 minute. Therefore, the continuous tampering operation of inputting all 5 loads that can be input to the security system is at least ←1! ! It is prevented to a certain degree. Decoder 102I/i stops operating simply by inputting a series of zeros. This is because other parts of the security system do not respond to the number zero.

Accordingly, one aspect of the present invention provides unauthorized personnel with limited access to security facilities and partially changes bus codes by utilizing higher level bus codes and various function keys. A relatively simple security system is provided. This method improves the safety of facility security, at least in terms of preventing intrusion by unauthorized personnel, to a level that would have been unimaginable with conventional single-access level systems.

Above are nine preferred embodiments of the present invention.

It will be apparent to those skilled in the art that modifications and variations within the scope of this invention are possible. Accordingly, the scope of the invention is to be limited only by the scope of the appended claims.

[Brief explanation of the drawing]

Figure 1 is a block diagram of a single system that utilizes fixed bus codes and, in part, f-codes; Figure 2 shows selective 11CT access to the security system by utilizing different bus codes. Block diagram showing the method:
Figures 3 and 3 are detailed block diagrams showing one embodiment of the security system shown in the second iK. (Symbols in the figure) 10... Central control unit 12... Resettable senna group 20... Periodically operated senna group 4
2...Keypad 44...Function key-54, Ii! d Fixed bus code 56...Temporary bus code 66...Temporary bus code detector 68...Fixed bus code/function detector 10
0...Keypad 102...Decoder 104.
・Function key Procedural amendment is a formula) September 29, 1980 Patent Application No. 147.497 2, Title of Invention Security System with Multiple Access Levels 3, Amendment with Person Case Related Applicant Name American Buistlift Telegraph Kanno! Nee 4, Agent address: 1-1-5, Minami-Aoyama-chome, Minato-ku, Tokyo, Date of amendment order (voluntary)

Claims (1)

[Scope of Claims] (1) A means for manually inputting a bus code by pressing a keypad, and a means for manually inputting a bus code by pressing a keypad, and a means for controlling a security system in response to inputting a different bus code on the keypad. and (2) the security system comprises a plurality of swivelable detectors and a function control means for controlling each function to provide a plurality of access levels to the security system. ,
another plurality of detector loops; The security system [82
A security system according to claim 1, comprising means for temporarily programming a bus code of a vehicle.
G) According to the bus code of recommendation 1 above, go to Ri City. 2. The security system according to claim 2, wherein the security system provides access to the following functions: shortcut, loop bypass, system inhibition, and program of the second level bus code. -20) The function control means is configured to control the IEl input by the keypad KsP%A.
level pass? - the security system KI in response to the
Security system according to claim S1, including means for temporarily programming a bus code of level I2. 6) the number of digits of the numbers constituting the first bus code;
5. The security system according to claim 14, wherein the number of digits of the numbers constituting the second bus code is 3. b) The function control means includes a plurality of function control keys meeting a code key, and the means for temporarily programming a second level bus code is configured to input the first level bus code and to input the first level bus code. In response to pressing the code key, the next series of digits is entered on the keypad KsP%A. 5. A security system as claimed in claim 4, programmed as said second level bus code. Q) the function control means is operated simultaneously with the input of the first level bus code, and includes means for defining a time window during which the building 20 level bus code can be programmed; 7. A security system as claimed in claim 6, wherein said means for temporarily programming only operates the trap during said time window. (8) The security system according to claim 1, wherein the security system includes a local display device, and the function control means includes means for inhibiting the local display device in response to input of a certain bus code. The security system includes a communication device for communicating with outside the security area, and the function control means includes means for suppressing the communication device in response to input of a predetermined bus code. The security system according to scope 1. (10) The security system includes a plurality of resettable detectors, and the seven-stroke control means is resettable in response to input of one of the bus codes. The security system according to claim 1, further comprising means for resetting the detector.
The security system of claim 1, comprising means for programming a partial passcode into the security system in response to entry of a 0-level bus code; (12) the complexity of the temporary bus code; 12. The security system according to claim 11, wherein the 10,000-level bus codes have different degrees of complexity. (13) A keypad consisting of the steps of: providing an access level to the keypad-accessible security system K14 by allowing the control of different systems by entering different bus codes via the keypad; How to improve the safety of an accessible security system. 14. The method of claim 13, wherein the different bus codes differ from each other in their complexity. (15) The method of claim 11, wherein the bus code associated with more restricted access is a simpler bus code. (16) The method according to claim 13, wherein the number of different access levels and the number of different bus codes are both two or more. (17) The security system includes a plurality of continuously monitored detector loops and a plurality of periodically monitored detector loops, and the access provided by one of the different bus codes is: 14. The method of claim 13, which does not include access to control the plurality of continuously monitored detector loops. (18) Claim 1 further comprising the step of inhibiting access to the select-select system function from among the system functions at a time other than the time window that starts at the same time as a predetermined bus code is input. The method described in Section 13.