JPH0410198A - Wireless security system equipped with supervise function - Google Patents

Abstract

PURPOSE:To monitor normally a security transmitter in suspension by providing a relay receiver at the keeping place for the security transmitter in suspension and connecting the relay receiver to each monitoring controller. CONSTITUTION:A periodic transmission signal to which a house code and an ID cord are attached is transmitted from a security transmitter 2 as a radio wave signal in each prescribed period. A relay receiver 3 provided at the keeping place receives the periodic transmission signal by an antenna 3a and transmits an amplified high-frequency signal to a signal line (l) if it is needed. A controller 1 receives the high-frequency signal transmitted through the signal line (l), and a receive processing part 16 demodulates the periodic transmission signal and transmits it to a signal processing part 10. The erroneous information from a supervise function is prevented because the periodic transmission signal can be received by the controller 1 only after the security transmitter 2 is moved to a keeping place K when it needs to be suspended.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement in a wireless security system having a super-hide function.

[Prior Art] Recently, wireless security systems have been developed in which alarm signals from security sensors such as glass breakage detectors and tilt sensors are transmitted via wireless signals to a centrally installed controller for security monitoring and control. Systems have been developed and are being used.

FIG. 7 shows an example of the basic configuration of such a security system, which includes a plurality of security transmitters 200 to which security sensors S are connected, and a system that receives and demodulates wireless signals transmitted from the transmitters 200. The controller 100 installed in the center performs control processing necessary for alarm notification.

In such a system, in order to prevent interference due to concentrated signals coming from adjacently installed security systems, a system-specific house code is attached to the wireless signal transmitted from each transmitter 200, and In order to identify each transmitter 200, a unique ID code is assigned to each transmitter 200. When starting such a system, first set the house code of each transmitter 200 and the house code of the controller 100 to be the same, and then
The ID code of 00 is sequentially registered on the controller 100 side, and when the security sensor S connected to each transmitter 200 issues an alarm, the transmitter 2
A security signal from 00 to which a house code and an ID code are attached is transmitted in the form of a wireless signal to the controller 100 side, and the controller 100 receives and demodulates the wireless signal to determine whether the house code matches.
Since the code is identified and necessary control processing is performed, even if the transmitters 200 have the same ID code, they can be distinguished if they have different house codes, and interference with other systems can be prevented. Security sensor S that alerted
It is possible to identify and issue an alarm. Furthermore, since there is no need to lay a signal line between the installation location of the security sensor S and the controller, the workability is also improved.

Further, in such a system, in addition to the security monitoring operation described above, each security transmitter 200
The controller 100 side constantly monitors the periodic transmission signal transmitted from ... at a predetermined frequency, and if some abnormality occurs in the transmitter 200 and the periodic transmission signal is not transmitted for a predetermined period or more, The controller 100 side has a supervisory function that determines and notifies an abnormality, further improving the reliability of the system.

By the way, when using such a system in a museum, for example, a tilt sensor (
(not shown) and a security transmitter 200, when a painting is tilted to remove it, the tilt sensor detects the tilt and sends a wireless security signal to the controller 100 installed in a management room or the like. Since the system issues an alarm, it is possible to prevent theft and the like. However, in general, art museums often change the paintings on display, and each time the transmitter 200 is removed and placed on another painting, the unused security transmitter 200 is stored in a warehouse, etc. If the periodic transmission signal is moved to the controller 100 side because the wireless signal does not reach the controller 100 side from the transmitter 200, the regular transmission signal cannot be received by the controller 100 side, and all the stored holidays will be lost. Therefore, for transmitters 200 that are inactive, the controller 10
In addition, each ID code registered on the 0 side must be deleted one by one, and when the transmitter 200 is inactive, the ID code must be registered again. On the other hand, the supervisory function provided in the system created a problem in that the operation became extremely complicated, and an improvement was desired.

In addition, in the above-described system, the security transmitter 200 side selectively removes the house code, ID coat, jumper wire (not shown), etc. attached to a printed circuit board (not shown), or , a conductive chip (not shown) or the like is selectively attached to a printed circuit board and fixedly set at the time of manufacturing, but on the controller 100 side, it is customary to set it as a house code dip switch. As a result, the reliability is lowered due to the use of a mechanical switch, and the transmitter 200 that is in a deactivated state is determined to be abnormal, resulting in poor manufacturability due to the installation space of the abnormality alert switch. Improvements were also desired.

[Problems to be Solved by the Invention] The present invention, proposed in view of the above circumstances, transmits periodic transmission signals sent from an inactive security transmitter that has been moved to a storage location outside the system operation area. By relaying the transmission to the controller installed in the area and allowing the normally supervised operation even for idle transmitters, the trouble of frequently registering and deleting ID codes can be eliminated, and the following can be done: The aim is to provide a wireless security system with a supervisory function that improves operability and reliability.

In addition, the present invention proposed at the same time has a configuration that eliminates the house code setting switch by automatically registering the house code on the controller side, thereby reducing the number of parts and improving reliability. The purpose is to provide a security system with

[Means for solving r4M] The present invention according to claim 1 proposed to achieve the above object is a wireless security system having a supervision function, which comprises a controller and a plurality of security transmitters. At least one or more security monitoring system consisting of a group set to the same house code is installed within the system operating area with each monitoring system set to a different house code. In the storage area provided outside, there is a device for relaying and receiving wireless signals sent from out-of-service security transmitters that have been moved to the storage area, among the security transmitters that are the components of the security monitoring system. A relay receiver is installed, and the relay receiver is connected to each of the monitoring system controllers provided within the system operating area by a signal line.

Further, the present invention as set forth in claim 2 provides a method for detecting a wireless signal attached to the wireless signal when the controller used in the system according to claim 1 receives the wireless signal transmitted from the security transmitter. It is configured to include an automatic registration section that automatically registers codes.

[Function] In the present invention as set forth in claim 1, in a plurality of security monitoring systems configured with a controller set to the same house code and a plurality of security transmitters, each controller is connected by a signal line. Therefore, wireless signals such as security signals and periodic transmission signals sent from the security transmitter are transmitted to all controllers, and after determining whether the house code matches, each controller determines whether the ID code is registered or not. Control processing is performed. On the other hand, periodic transmission signals sent from inactive security transmitters that have been moved to a storage location outside the system operation area are received by a relay receiver installed in the storage location and sent to each monitoring system via signal lines. The signal is sent to the controller side, and the monitoring system controller to which the transmitter belongs receives the transmitted signal and performs supervision processing to monitor the status of the transmitter.

In the present invention according to claim 2, when the controller receives the first wireless signal transmitted from the security transmitter after being energized, the automatic registration section automatically registers the house code attached to the wireless signal. After that, signal processing is performed based on the registered house code.

[Example] The present invention will be described in detail below with reference to the drawings.

FIG. 1 is a block diagram showing a first system configuration example of the present invention, in which a controller l and a plurality of security transmitters 2 are set to the same house code. As one security monitoring system, there are n pieces (Sl) each set to a different house code.
-Sn) security monitoring system is installed in system operation area E]. Here, the system operating area E1 refers to each monitoring system S1 to Sn in each monitoring system S1 to Sn.
Wireless signals transmitted from the security transmitters 2 . . . belonging to the Sn are received by the respective monitoring systems 81 to the controllers 2 of the Sn, indicating areas where security monitoring can be performed.

On the other hand, in an area E2 located outside the system operation area E1, where the wireless signals transmitted from each transmitter 2 do not reach the controller 1 side, there is a security transmitter that is a component of each monitoring system 81 to Sn. Among the transmitters 2..., a storage location K is provided to store the inactive transmitters 2..., and this storage location K receives the radio signals of the transmitters 2 and amplifies them as necessary. A relay receiver 3 is provided, and the relay receiver 3 and the controllers of each monitoring system 81 to Sn are connected across signal lines 1, and the high frequency signals relayed and received by the relay receiver 3 are connected to the signal lines. It is transmitted to the Condorado side via p.

The security transmitter 2 of each security monitoring system is
Upon receiving the alarm signal from a security sensor S such as a glass breakage sensor or tilt sensor, a security signal with a house code unique to the monitoring system set inside the transmitter 2 and an ID code unique to the transmitter 2 is sent as a wireless signal. On the other hand, the transmitter 2 is configured to transmit and output a periodic transmission signal with a house code and an ID code attached thereto at predetermined intervals in the form of a wireless signal. In this system, both the security signal and the periodic transmission signal are transmitted and output as radio signals, but it is also possible to use an optical signal or the like in addition to radio signals.

On the other hand, the controller 1 has a security transmitter 2...
- An antenna 1a that receives a wireless signal transmitted from the
a reception processing section 16 that demodulates a wireless signal received by the antenna 1a and extracts a security signal or a periodic transmission signal; a house code setting section 11 that sets a house code specific to the monitoring system; and a security transmitter 2...specific A mote setting section 12 performs switching settings between a registered mote for registering an ID code and a monitoring mote for monitoring alarms of the security sensor Sl, an alarm notification means 15 for issuing an alarm notification, and stores ID codes to be registered. Memory means] 3 and a timer circuit section 14 consisting of a timer circuit provided for each registered ID code, and control processing of each of these sections is centrally performed by a signal processing section 10 consisting of a CPU. ing.

In order to explain the supervision operation, FIGS. 2(a) and 2(b) show a periodic transmission signal transmitted from the security transmitter 2 at a predetermined period TIN, and a signal provided on the controller 1 side by this periodic transmission signal. This is a time chart showing the state of the timer signal output from the timer circuit corresponding to the timer circuit unit 14 (corresponding to the ID code attached to the periodic transmission signal). Each time a signal is transmitted and received by the controller 1, the timer circuit is retriggered and outputs the timer signal again for a predetermined time T2 (T2>TI), but a problem occurs in the transmitter 2 and the periodic transmission is stopped. When the signal stops, the timer circuit times up when time T2 has elapsed since being retriggered, and the signal processing section 10
An abnormality signal is sent to the alarm notification means 15, and an abnormality notification is performed.

Figure 3 shows the transmission format of the wireless signal (security signal, periodic transmission signal) transmitted from the security transmitter 2. In this system, the house code and ID code are transmitted following the start signal. Furthermore, the configuration is such that a series of transmission formats in which an end signal is sent after the data representing the transmission content is transmitted are transmitted twice.

The feature of the configuration of the system of the present invention is that among the security transmitters 2 belonging to each of the security monitoring systems S1 to Sn, from the inactive transmitters 2 stored in the storage location) The periodic transmission signal based on the output radio wave signal is once relayed and received by the relay receiver 3, and is transmitted as a high-frequency signal amplified as necessary to the controller 1 side of each security monitoring system S1 to Sn via the signal line l. The storage location K is located in the system operating area E1.
Even if you are far away from the dormant transmitter 2...
By simply storing the regular transmission signal in the storage location K, the relay receiver 3 relays and receives the regularly transmitted signal and transmits it to each controller, so that the supervisory operation can be performed normally. Therefore, even if the usage status of each security transmitter changes frequently, false alarms due to supervisory operation are eliminated without having to delete ID code registration on the controller side one by one. It is also possible to check the operations of devices 2, . . . through the supervised operation.

Next, the system operation of the present invention will be explained below.

1. Operation of registration mode.

(2) Set the house code of the controller 1 using the house code setting section 11, and set the house codes of all security transmitters 2 . . . in the security monitoring system to be the same as the house code of the controller 1.

■Select the registration mode using the mode setting meter 12 of the controller 1.

(2) Operate the registration transmission switch (not shown) of the security transmitter 2 to be registered, and sequentially transmit the registration signal with the house code and ID code by wireless signal.

■The wireless signal transmitted from the security transmitter 2 is received by the antenna 1a of the controller 1, and the reception processing unit 16
The registration signal including the house code and ID code is demodulated and transmitted to the signal processing section.

■The signal processing unit compares the house code demodulated by the reception processing unit 16 with the house code set by the house code setting unit 11 to determine a match, and when a match is determined, the demodulated ID code is stored in the memory. The ID code is stored in the means 13, and the timer circuit section 14 corresponds to the ID code.
starts the timer circuit.

Through these steps, the security transmitter 2...
* is registered in the 111st controller 1, and when the registration of all the transmitters 2 is completed, the mote setting unit 12 switches to the monitoring mote.

2. Security sensor S in monitoring mode
Behavior when an alarm is triggered.

- When the security sensor S issues an alarm, the security transmitter 2 transmits a security signal with a house code and ID code as a radio signal.

(2) The controller 1 receives a radio signal through the antenna 1a, demodulates the security signal through the reception processing section 16, and transmits it to the signal processing circuit IO.

■The signal processing circuit 10 compares the house code attached to the security signal demodulated by the reception processing gβ16 with the house code set by the house code setting section 11,
When a match is determined, it is then determined whether the same ID code as the ID code attached to the security signal is stored (registered) in the memory means 13. When the same ID code is stored, the alarm notification means 1
A control signal is transmitted to 5 to identify the security sensor S that has triggered the alarm, and perform necessary alarm notifications such as sounding an alarm or displaying an alarm.

3. Supervising operation for the security transmitter 2 in the monitoring mode.

(2) A regular transmission signal with a house code and an ID code is transmitted from the security transmitter 2 in the form of a radio wave signal every predetermined period T1.

(2) The controller 1 receives a radio wave signal through the antenna 1a, demodulates the periodic transmission signal through the reception processing section 16, and transmits it to the signal processing circuit 10.

■The signal processing circuit IO compares the house code attached to the periodic transmission signal demodulated by the reception processing section 16 with the house code set by the house code setting section 11, and when a match is determined, the periodic transmission signal is ID attached to outgoing signal
The same coat as the coat is stored (registered) in the memory means 13
If the same code is registered, the timer circuit corresponding to ID code 4 is retriggered.

■However, if a trouble occurs in one of the security transmitters 2 and the periodic transmission signal is not output for a period T2, which is longer than the period T1 in which the periodic transmission signal is transmitted,
In the timer circuit section 14 of the controller 1, the timer circuit corresponding to the transmitter 2 in which the abnormality has occurred times up, so the signal processing circuit 10 sends an abnormality occurrence signal to the alarm notification means 5 to notify the transmitter in which the abnormality has occurred. 2 is identified and an abnormality notification is performed.

The above description of the operation is the supervising operation for the security transmitter 2 within the system operating area El, and next, the supervising operation for the dormant transmitter 2 that has been moved to the storage location K will be described below.

■A periodic transmission signal with a house code and an ID code is transmitted from the security transmitter 2 in the form of a radio signal every predetermined period T1, and a repeater 3 installed in the storage area
Then, the regularly transmitted signal is relayed and received by the antenna 3a, and if necessary, the amplified high-frequency signal is sent to the signal line l.

(2) The controller 1 receives the high frequency signal transmitted via the signal line 1, demodulates the periodic transmission signal in the reception processing section 16, and transmits it to the signal processing circuit 10.

②The operations from this point on are the same as those in ① and ① above, so they will be omitted.

In this way, in the system of the present invention, when the security transmitter 2... is to be suspended, it is simply moved to the storage location K, and the controller can receive the periodic transmission signal. This prevents false alarms due to the function and eliminates the trouble of deregistering ID codes one by one, resulting in a convenient system.

In the above explanation, the relay receiver 3 is configured to amplify the wireless signal at high frequency, but the relay receiver 3 is provided with a demodulation function and the demodulated security signal or periodic transmission signal is directly transmitted via the signal line l. It is also possible to configure the signal to be transmitted to the signal processing section 10 of each controller 1.

FIG. 4 is a block diagram showing a second system configuration example of the present invention. In this system, the reception processing unit 16 of the controller 1 in the first system configuration is
is configured as an independent relay receiver 4, with the relay receiver 3 in the storage location and the relay receivers 4 of each monitoring system 81 to Sn.
...is the signal line! The difference is that the structure is connected across, and the same and non-separable parts are given the same reference numerals and the explanation will be omitted.

The relay receiver 4 receives a wireless signal transmitted from the security transmitter 2 using an antenna 4a, demodulates the wireless signal using a front end circuit 4b, extracts a security signal or a periodic transmission signal, and sends the wireless signal via a reception processing circuit 4a. The demodulated signal is transmitted to the signal processing circuit 10 on the controller 1° side, and upon receiving an acknowledge signal (hereinafter referred to as an ACK signal) returned from the signal processing section #110, the demodulated signal is transmitted to the controller 1' side. Perform an action to stop.

On the other hand, the signal processing circuit 10 of the controller 1' determines whether the format of the signal including the house code and ID code of the security signal or periodic transmission signal transmitted from the relay receiver 4 is appropriate, When this is the case, an ACK signal is sent back to the relay receiver 4 side, and thereafter, as in the case described above, it is determined whether the house codes match and necessary control processing is performed.

According to such a configuration, each security monitoring system S]
~Sn, if each relay receiver 4 is installed in a place where it can receive and demodulate the radio signal transmitted from the security transmitter 2..., there will be no restriction on the installation location of the controller 1. ... can be centrally installed in a management center, etc., and security monitoring can be performed centrally.

Note that in the second system configuration example, as in the first configuration example, a relay receiver 3 (with the function of receiving a wireless signal and relaying it as an amplified high-frequency signal) installed in the storage location K is used. ) and each security monitoring system S
Although the configuration is such that the relay receivers 4 (having a demodulation function) are connected to the relay receivers 1 to Sn through the signal line l, the configuration is not limited to this. For example, the relay receiver 3 is connected to the storage location K. Instead, a relay receiver 4 may be provided, and the relay receiver 4 and controllers of each security monitoring system may be connected directly across signal lines 1 to transmit the demodulated signals. It is possible.

In addition, in FIG. 4, each monitoring system 5l-5n has a relay receiver 4.
Although the configuration is such that one unit is provided, it goes without saying that a configuration in which two or more units are provided is also possible.

FIG. 5 is a block diagram showing an example of the configuration of a controller l'' used in the system of the present invention as set forth in claim 2, and the same parts as the controller 1.1' are given the same reference numerals. The explanation will be omitted.

In this controller 1'', the house code setting section is removed, and instead, the signal processing section 10 and memory means 13 constitute an automatic house code registration section M.

The house code registration operation of controller 1'' is described in the time chart of FIG. 6 (steps 1000 to 1006).
).

(2) When the power is turned on while the controller l is not energized, the CPU of the signal processing circuit 10 is reset and enters a standby state for a wireless signal from the security transmitter 2.

■When a registration signal with a house code and an ID code is sent from one of the security transmitters 2 as a wireless signal, the reception processing unit 16 receives and demodulates the signal, and the signal processing circuit 10 captures and imports the house code. The house code is stored in memory means 13.

■Once the house code registration is complete,
Control processing of the system is performed according to the registered house code.

As described above, according to the present invention, there is no need to provide a mechanical switch such as a house code setting switch on the controller 1'' side, so reliability is improved, and space and cost savings can be achieved. I can do it.

[Effects of the Invention] According to the present invention as set forth in claim 1, a simple configuration in which a relay receiver is installed at the storage location of the inactive security transmitter and cross-connected to the controllers of each monitoring system, Since a dormant security transmitter that has been moved from an operating area can be properly monitored by the supervisor operation, even if the usage status of the security transmitter changes frequently, the registered ID
This eliminates the need for troublesome operations such as deleting and re-registering codes one by one, and provides a wireless security system with a supervision function that improves operability and reliability.

According to the present invention as set forth in claim 2, the house code can be automatically registered without using a mechanical switch.
It is possible to provide a wireless security system with a supervision function that improves reliability, saves space, and saves costs.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a first system configuration example of the present invention as set forth in claim 1, FIG. 2 is an explanatory diagram of a supervisory operation, and FIG. 3 is a diagram of a wireless signal transmitted from a security transmitter. An explanatory diagram of a transmission format, FIG. 4 is a block diagram showing a second system configuration example of the present invention, and FIG. 5 shows a configuration example of a controller used in the system of the present invention according to claim 2. FIG. 6 is a flowchart explaining the automatic registration operation, and FIG. 7 is a side view of the conventional system configuration. [Description of symbols] 1...Controller 2...Security transmitter 3...Relay receiver El...System operation area K...Storage location l...Signal line M...Automatic registration section

Claims (2)

[Claims] (1) A wireless security system with a supervisory function, in which at least one security monitoring system consisting of a group in which a controller and multiple security transmitters are set to the same house code is controlled by each monitoring system. While each house code is set to a different house code and installed within the system operation area, the security transmitter that is a component of the security monitoring system is installed in a storage area outside the system operation area. A relay receiver is installed to relay and receive wireless signals sent from the inactive security transmitter that has been moved to a storage location, and the relay receiver and each of the above-mentioned monitors installed within the system operating area are installed. A wireless security system with a supervisory function that is connected to a system controller via a signal line. (2) The controller includes an automatic registration unit that automatically registers a house code attached to the wireless signal when the controller receives the wireless signal transmitted from the security transmitter. A wireless security system having a supervision function according to claim 1.