JP2007109581A - Crime prevention switch system and crime prevention switch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a crime prevention switch system capable of specifying and detecting which crime prevention switch has been turned on or off, and which is easily mountable even if it is a security device in which the crime prevention switches are numerously installed, and provide the crime prevention switch applicable in this system. <P>SOLUTION: The switch main body 11 of the crime prevention switch 1 is provided with a switch SW1 turned on or off by connection and disconnection of a magnet 12, a resistor Rp1 connected in parallel with the switch SW1, and a resistor Rs1 connected in series with the switch SW1 and of which the resistivity is different from that of the resistor Rp1. The switch SW1 is constituted of a magnetic body and a so-called reed switch. The magnet 12 is installed at a position adjacent to the switch SW1 outside the switch main body 11. That the switch SW1 is turned on means that the switch SW1 is closed and that the crime prevention switch 1 is truned on. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a security switch system that detects on / off of each of a plurality of installed security switches, and a security switch applied in the security switch system.

  Conventionally, a crime prevention switch for crime prevention that has a switch installed on a door or window of a house or office, etc. that is turned on and off in conjunction with opening and closing of the door or window, and the switch of this crime prevention switch is turned on and off. There is a security switch system that includes a security device that generates an alarm sound when opening or closing of a door or window is detected, and performs security.

  A plurality of security switches are connected in series or in parallel, and are further connected to a security device to form a closed circuit. The security device is provided with detection means for detecting on / off of a security switch, that is, on / off of a closed circuit, notification means for generating an alarm sound by a detection signal from the detection means, and the like.

  In such a security switch system, when any one of the installed security switches is turned on (or off) by opening a window or a door in which the security switch is installed, the security device has a window and a door. An open sound is detected and an alarm sound is generated.

On the other hand, a crime prevention switch system (switch operation detecting device) as described in Patent Document 1 has been proposed.
This crime prevention switch system includes a plurality of crime prevention switches, a constant current element connected in series to each of the crime prevention switches, and a current measuring unit that detects a current value flowing through the entire circuit.

If any of the windows and doors where the security switch is installed is opened and one of the security switches is turned off, no current flows through the constant current element connected in series to the off security switch. Then, the current measuring unit measures the total current value excluding this amount. From this current value, it can be detected whether the security switch is turned off.
JP 2002-231083 A

  However, in the conventional crime prevention switch system, it can be detected that either the window or the door is in the on / off state, but the on / off state window, the door, or the like cannot be identified and detected. For this reason, when the alarm sounds, it is not possible to determine which windows and doors have been opened, and when there are a large number of windows and doors equipped with crime prevention switches, it is not possible to quickly respond to crime prevention. was there. Also, when the alarm switch sounds when the crime prevention switch system is switched from the stopped state to the activated state, it cannot be immediately determined which windows and doors are locked, and all windows and doors are locked again. There was also a problem that had to be confirmed.

  Also, in Patent Document 1, it can be detected that either a window or a door is in an on / off state, but it is the same in that it cannot be detected which security switch is turned off. Therefore, there is a problem similar to that of the conventional crime prevention switch system.

  The present invention is intended to solve such a conventional problem, and even in a security device provided with a large number of security switches for crime prevention, it is possible to detect on / off by identifying which security switch is turned on / off. An object is to provide a security switch system and a security switch applied in this system.

  The crime prevention switch of the present invention has the following configuration in order to solve the above-mentioned problems.

(1) A crime prevention switch having a switch that is turned on and off in conjunction with opening and closing of a door or window, and a plurality of such switches connected in series;
In a security switch system comprising a security device having detection means for detecting the combined resistance value of all the security switches,
Each of the security switches has a first resistor connected in parallel with the switch and having a different resistance value,
The security switch is connected in series with the switch, and has a second resistor having a resistance value different from that of the first resistor.
The detection means of the security device detects the on / off state of each of the security switches and whether or not each of the security switches is short-circuited from the detected combined resistance value.

In this configuration, the security device may be provided with notification means for notifying whether the crime prevention switch has been turned on or off. The notification is preferably performed by sound, but may be a video. Of course, you may have both. If it is a sound, a notification means will be a means which produces | generates an audio | voice signal and generates an alarm sound outside. If it is a video, the notification means is a means for generating a video signal and displaying the video.
When the security switch at the normal time is off, and any one of the security switches is turned on, the resistance value of the first resistor of the security switch is not detected. Therefore, the security device uses the combined resistance value at that time. Identify and detect the security switch that is turned on. Further, the security device may generate an alarm sound outside by the notification means and display which security switch is turned on.
Conversely, when the security switch in the normal state is on and any one of the security switches is turned off, the resistance value of the first resistor of the security switch is detected. The crime prevention switch turned off is identified and detected from the resistance value. Further, the security device may generate an alarm sound to the outside by the notification means and display which security switch is turned off.
As described above, even if the security switch system is a security device provided with a large number of security switches for crime prevention, it can identify and detect which security switch is turned on or off. Therefore, when the alarm sound is sounded, it can be determined which window, door, etc. have been opened, so that the effect of crime prevention can be quickly achieved. Further, when the alarm switch sounds when the crime prevention switch system is changed from the stopped state to the activated state, it is possible to immediately determine which window and door are not locked. Moreover, since the first resistor for identifying each security switch is provided inside the security switch, the security switch system installer or user can easily install the system simply by installing the security switch. There is an effect. In addition, since the security switches are simply connected in series at the time of installation, the wiring between the security switches can be simplified. In addition, when the wiring between the security switches is cut off somewhere, current stops flowing. Therefore, it is possible to detect that the wiring between the security switches has been disconnected.

On the other hand, in this configuration, the resistance values of the first resistor and the second resistor of the security switch are different. For this reason, it can be easily determined whether the security switch is turned on or off or whether the security switch is short-circuited.
When one of the security switches is short-circuited, the resistance value between the first resistor and the second resistor of the security switch is not detected, so the security device can identify which security switch is short-circuited.
As described above, the security switch system has an effect that it is possible to identify which security switch is short-circuited even in a security device provided with a large number of security switches for security.

(2) In a security switch with a switch that turns on and off in conjunction with a door or window,
A first resistor connected in parallel with the switch;
A second resistor connected in series with the switch and having a resistance value different from that of the first resistor.

In this configuration, the security switch is used in the security switch system of (1) above.
Thereby, there exists an effect similar to said (1).

(3) a first line housed in a switch body, to which the switch, the first resistor, and the second resistor are connected;
A second line that is housed in the switch body and constitutes a closed loop with the first line;
A connection terminal provided on both sides of the switch body, to which both ends of the first line and the second line are connected, and a parallel cable is connectable from outside the switch body;

In conventional crime prevention switches, a parallel cable is often used. However, when connecting to the parallel cable, it is necessary to tear the parallel cable.
Therefore, the crime prevention switch in this configuration includes two lines, a first line and a second line, inside the apparatus body so that the parallel cable can be connected without tearing. For this reason, the slack seen when connecting the conventional crime prevention switch cannot be performed.
As described above, the crime prevention switch has an effect that the parallel cable can be routed without impairing the beauty.

  According to this invention, even if it is a security device provided with a large number of crime prevention switches, it is possible to specify which crime prevention switch is turned on / off.

  Hereinafter, the crime prevention switch system which is 1st embodiment of this invention is demonstrated.

FIG. 1 is a system configuration diagram of a security switch system according to a first embodiment of the present invention.
The security switch system 100 includes four (plural) security switches 1 to 4 installed on the door 402 or windows 403A to C of the office 401, and the doors 402 or windows 403A to C opened and closed by the security switches 1 to 4. And a security device 101 that generates an alarm sound when detected.
The security switch 1 is provided on the movable side of the door 402 and includes a magnet 12 that interlocks with opening and closing of the door 402 and a switch body 11 that is installed on the non-moving side of the door 402.
The security switches 2 to 4 are installed in the windows 403A to 403C. The security switches 2 to 4 are installed on the movable side of the windows 403A to 403C, the magnets 22, 32, and 42 interlocked with the opening and closing of the windows 403A to 403, and the switch body 11 installed on the non-moving side of the windows 403A to C. And comprising.
In this embodiment, the security switch system 100 is installed in the office 401, but it may be a house.

FIG. 2 is a block diagram of a security device and a security switch constituting the security switch system according to the first embodiment of the present invention.
The switch body 11 of the security switch 1 includes a switch SW1 that is turned on and off by the contact and separation of the magnet 12, a resistor Rp1 that is connected in parallel to the switch SW1, and a switch SW1 that is connected in series and has a resistance value different from that of the resistor Rp1. A resistor Rs1. The switch SW1 is made of a magnetic material and is a so-called reed switch.
The magnet 12 is provided at a position close to the switch SW1 outside the switch body 11.
When the switch SW1 is on, it means that the switch SW1 is closed and that the security switch 1 is on. When the magnet 12 comes into contact, the switch SW1 is turned on. When the door 402 is opened and the magnet 12 is released in conjunction with the door 402, the switch SW1 is turned off.

The configuration of the security switches 2 to 4 is the same as that of the security switch 1.
Here, in this embodiment, the security switch 1 (switch SW1) is on at the normal time when the magnet 12 is in contact, but the security switch 1 (switch SW1) may be off at the normal time when the magnet 12 is in contact. . In this case, the switch SW1 and the magnet 12 attract each other.

  Subsequently, the security switches 1 to 4 are connected in series. The security switch system 100 is constructed so that the resistance values of the resistors Rp1 to Rp4 are different from each other.

In order to set the resistance values of the resistors Rp1 to Rp4 to be different and the resistance values of the resistors Rp1 to Rp4 and the resistors Rs1 to Rs4 to be different, for example, the following settings may be made. The resistance values of the resistors Rp1 to Rp4 are Rpn = 2 ⁿ R, that is, “Rp1 = 2R, Rp2 = 4R, Rp3 = 8R, and Rp4 = 16R”. The resistance values of the resistors Rs1 to Rs4 are Rpn = R, that is, “Rs1 to Rs4 = R”.

  Next, the security device 101 includes a voltage measurement unit 104 that detects a voltage by passing a constant value (for example, 10 mA) from a built-in DC power supply (not shown) to all the security switches 1 to 4, and the voltage measurement unit 104 includes The A / D converter 103 for A / D converting the detected voltage, and the voltage A / D converted by the A / D converter 103 are taken in and converted into the combined resistance values of all the crime prevention switches 1 to 4, and the combined resistance value A control unit 102 that detects a sound, an EEPROM 107 that stores a control program for operating the apparatus main body 101, a speaker 106 that generates an alarm sound, an audio output unit 105 that outputs an audio signal to the speaker 106, and a video display And a video output unit 108 that generates a video signal and outputs the video signal to the display unit 109.

  The speaker 106, the audio output unit 105, the display unit 109, and the video output unit 108 are notification means for performing notification. The display unit 109 is, for example, a liquid crystal monitor.

The control unit 102 is, for example, a microcomputer.
The control unit 102 monitors the environment of each of the security switches 1 to 4 from the detected combined resistance value. The environment is an on / off state of the security switches 1 to 4 or whether or not the security switches 1 to 4 are short-circuited.

  The combined resistance value detected by the control unit 102 will be described with some examples on the assumption that “Rp1 = 2R, Rp2 = 4R, Rp3 = 8R, and Rp4 = 16R” and “Rs1 to Rs4 = R”.

FIG. 3 is a table showing a correspondence relationship between the combined resistance value and the environment of each of the security switches 1 to 4.
FIG. 3A shows the correspondence between the detected combined resistance value and the on / off state of the security switches 1 to 4, and FIG. 3B shows the detected combined resistance value and the security switches 1 to 4. Shows the correspondence with whether or not the short circuit is short-circuited. In the figure, ○ indicates that the switches SW1 to SW4 are on, × indicates that the switches SW1 to SW4 are off, and Δ indicates that the security switches 1 to 4 are short-circuited. Show.

  When any one of the security switches 1 to 4 is turned off, since the resistance values of the resistors Rp1 to Rp4 of the security switches 1 to 4 are detected, the control unit 102 determines which crime prevention value from the detected combined resistance value. It can be specified whether the switches 1 to 4 are turned off.

  For example, as shown in FIG. 3A, if all the crime prevention switches 1 to 4 are turned on, that is, if all the SW1 to SW4 are turned on, the combined resistance value is 4R. If only the security switch 1 is off, the combined resistance value is 6R. If only the crime prevention switch 2 is off, the combined resistance value is 8R. If only the security switches 1 and 2 are off, the combined resistance value is 10R.

  Here, contrary to this embodiment, if a configuration is adopted in which the security switch 1 (switch SW1) is turned off during normal contact with the magnet 12, the door 402 is opened and the security switch 1 (switch SW1) is turned on. Then, the control unit 102 is configured to detect the resistance value of the resistor Rp1.

  Furthermore, the control unit 102 causes the audio output unit 105 to generate an audio signal and generate an alarm sound from the speaker 106. The audio signal data may be stored in the EEPROM 107. The audio output unit 105 extracts this data from the EEPROM 107 under the instruction of the control unit 102, performs D / A conversion, and generates an audio signal.

At the same time, the control unit 102 instructs the video output unit 108 which crime prevention switches 1 to 4 are turned off, causes the video output unit 108 to generate a video signal, and displays the video of the video signal on the display unit 109. . This display is, for example, “the window 403B in which the crime prevention switch 3 is installed is open”. The EEPROM 107 stores data that is the basis of this display. The correspondence between the security switches 1 to 4 and the door 402 or the window 403 may be registered in advance in the EEPROM 107 by providing an operation unit (not shown) in the security device and allowing the user to operate the operation unit.
Then, when generating the video signal, the video output unit 108 extracts corresponding data from the EEPROM 107 based on the instruction from the control unit 102, and performs D / A conversion on the extracted data to generate a video signal.
The display may be OSD (On Screen Display) display.

  As described above, the security switch system 100 is provided with a large number of security switches 1 to 4 in the security device 101, but can identify which security switches 1 to 4 are turned off. Therefore, when the alarm sound is sounded, it can be determined which window 403A-C and door 402 have been opened, so that it is possible to quickly respond to crime prevention. Moreover, when the alarm switch sounds when the crime prevention switch system 100 is changed from the stopped state to the activated state, it is possible to immediately determine which window 403A to C and the door 402 are not locked. Moreover, since the resistors Rp1 to Rp4 for identifying each of the security switches 1 to 4 are provided inside the security switches 1 to 4, the security switch system installer or the user only installs the security switches 1 to 4. Thus, there is an effect that the system 100 can be easily attached. In addition, since the security switches 1 to 4 are simply connected in series at the time of installation, the wiring between the security switches 1 to 4 can be simplified. Further, when the wiring between the security switches 1 to 4 is cut off somewhere, no current flows. Therefore, it is possible to detect that the wiring between the crime prevention switches 1 to 4 is cut.

  On the other hand, when any of the security switches 1 to 4 is short-circuited, the resistance values of the resistors Rp1 to Rp4 and Rs1 to Rs4 of the security switch are not detected. A short circuit can be detected by identifying whether or not Since resistance values of the resistors Rp1 to Rp4 and the resistors Rs1 to Rs4 of the security switches 1 to 4 are different, it is easy to determine whether the security switches 1 to 4 are turned off or the security switches 1 to 4 are short-circuited. I will.

  For example, as shown in FIG. 3B, if only the security switch 1 is short-circuited, the combined resistance value is 31R. If only the security switch 2 is short-circuited, the combined resistance value is 29R. If only the crime prevention switch 3 is short-circuited, the combined resistance value is 25R. If only the crime prevention switch 4 is short-circuited, the combined resistance value is 17R. Here, since the resistance values of the resistors Rp1 to Rp4 and the resistors Rs1 to Rs4 are different even and odd, the combined resistance value is even and odd as shown in FIGS. 3A and 3B. Is detected. Whether the crime prevention switches 1 to 4 are turned off at an even number can be identified as being short-circuited at an odd number.

  In this way, the control unit 102 can identify which crime prevention switches 1 to 4 are short-circuited from the detected combined resistance value.

  Further, the control unit 102 causes the video output unit 108 to generate a video signal for displaying which of the security switches 1 to 4 is short-circuited, and displays the video of the video signal on the display unit 109. This display is, for example, “the crime prevention switch 3 is short-circuited”.

  As described above, the security switch system 100 has a large number of security switches 1 to 4 provided in the security device 101, and has an effect that it is possible to specify which of the security switches 1 to 4 is short-circuited.

  Here, the voltage measurement unit 104, the A / D conversion unit 103, and the control unit 102 correspond to the “detection unit” of the present invention. The resistors Rp1 to Rp4 correspond to the “first resistor” of the present invention. The resistors Rs1 to Rs4 correspond to the “second resistor” of the present invention.

  Hereinafter, the crime prevention switch which is 2nd embodiment of this invention is demonstrated. First, problems of a conventional security switch will be described, and then a security switch according to a second embodiment of the present invention will be described.

FIG. 4 is a conceptual diagram showing a state when a parallel cable is connected to a conventional security switch.
Conventional security switches 301 and 302 are connected in series by a parallel cable 316 as shown in FIG.
In order to connect the conventional security switches 301 and 302, it is necessary to tear the parallel cable 316 in order to connect the conventional security switch 301, and a slack 313 as shown in FIG. 4 is formed in the parallel cable 316A. .
As described above, when the conventional security switches 301 and 302 are connected to the parallel cable 316, there is a problem that the slack 313 is formed and the aesthetic appearance is deteriorated.

FIG. 5 is a view showing a state when a parallel cable is connected to the security switch according to the second embodiment of the present invention.
FIG. 5A is a conceptual diagram showing a configuration of the security switch 201 according to the second embodiment of the present invention, and FIG. 5B is a diagram when a parallel cable is connected to the security switches 201 and 202. It is a figure which shows a mode.

The security switch 201 includes a switch main body 211 and a magnet 212.
The magnet 212 has the same configuration as the security switches 1 to 4 shown in FIG.
The switch body 211 includes a forward path 214 and a return path 213 for forming a closed loop with the forward path 214. The switch body 211 is provided on both sides of the switch body 211, and both ends of the forward path 214 and the return path 213 are connected, and the parallel cables 216 can be connected from outside the switch body 211 to connection terminals 218 and 219, Is provided.

  Similarly to the crime prevention switches 1 to 4 shown in FIG. 2, the forward path 214 is connected to the switch SW201, the resistor Rp201, and the resistor Rs201.

That is, the crime prevention switch 201 includes two lines of an outward path 214 and a return path 213 inside the apparatus body so that the parallel cable 216 can be connected without tearing.
The configuration of the security switch 202 in FIG. 5B is the same as the security switch 201.

When the parallel cable 216B is connected to the connection terminal 218 and the parallel cable 216A is connected to the connection terminal 219, a state as shown in FIG.
As shown in FIG. 5B, the security switches 201 and 202 can be connected without tearing the parallel cable 216, so that the slack 313 seen when connecting the conventional security switches 301 and 302 cannot be formed. Therefore, the parallel cable 216 can be routed without impairing the beauty.

  From the above, the crime prevention switches 201 and 202 have an effect that the parallel cable 216 can be routed without impairing the aesthetic appearance.

  When the parallel cable 216 is routed, in order to form a closed loop, the terminal crime prevention switch 202 is provided with a loop 217 that connects the forward connection terminal and the return connection terminal. In the case of the crime prevention switch 201, the loop 217 corresponds to connecting the connection terminal 218A and the connection terminal 219A. The loop 217 may be made of any material as long as the connection terminal 218A and the connection terminal 219A can be short-circuited. Soldering may be performed, and a parallel cable 216 may be used.

  Here, the forward path 214 corresponds to the “first line” of the present invention. The return path 213 corresponds to the “second line” of the present invention.

The system block diagram of the crime prevention switch system which is 1st embodiment of this invention 1 is a block diagram of a security device and a security switch constituting a security switch system according to a first embodiment of the present invention. Table showing correspondence between combined resistance value and security switch 1 to 4 environment Schematic diagram showing how a parallel cable is connected to a conventional security switch The figure which shows a mode when a parallel cable is connected to the crime prevention switch which is 2nd embodiment of this invention.

Explanation of symbols

1-crime switch SW1-switch Rp1-resistor Rs1-resistor 2-crime switch SW2-switch Rp2-resistor Rs2-resistor 3-crime switch SW3-switch Rp3-resistor Rs3-resistor 4-crime switch SW4 -Switch Rp4- Resistor Rs4- Resistor 11- Switch body 12- Magnet 21- Switch body 22- Magnet 31- Switch body 32-- Magnet 41- Switch body 42- Magnet 100- Security switch system 101- Security device 102- Control Unit 103-A / D conversion unit 104-voltage measurement unit 105-audio output unit 106-speaker 107-EEPROM
108-Video output unit 109-Display unit 201-Security switch SW201-Switch Rp201-Resistor Rs201-Resistor 202-Security switch 211-Switch body 212-Magnet 213-Return route 214-Outward route 216-Parallel cable 217-Loop 218- Connection terminal 219-Connection terminal 301-Conventional security switch 302-Conventional security switch 313-Slack 316-Parallel cable 401-Office 402-Door 403A-Window 403B-Window 403C-Window

Claims (3)

There is a switch that turns on and off in conjunction with the opening and closing of a door or window, etc.
In a security switch system comprising a security device having detection means for detecting the combined resistance value of all the security switches,
Each of the security switches has a first resistor connected in parallel with the switch and having a different resistance value,
The security switch is connected in series with the switch, and has a second resistor having a resistance value different from that of the first resistor.
The detection means of the security device is a security switch system that detects, from the detected combined resistance value, an on / off state of each of the security switches and whether or not each of the security switches is short-circuited. In a security switch with a switch that turns on and off in conjunction with a door or window,
A first resistor connected in parallel with the switch;
A crime prevention switch comprising: a second resistor connected in series with the switch and having a resistance value different from that of the first resistor. A first line housed in a switch body, to which the switch, the first resistor, and the second resistor are connected;
A second line that is housed in the switch body and constitutes a closed loop with the first line;
3. A connection terminal provided on both sides of the switch body, wherein both ends of the first line and the second line are connected, and a parallel cable is connectable from outside the switch body. Security switch as described in.

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