JP3047378U - Infrared detector and mechanical security system using infrared detector - Google Patents

Abstract

(57) [Summary] [Object] It is an object of the present invention to provide an inexpensive infrared detector for detecting an intruder and a mechanical security system using the infrared detector. [Structure] Sensor means, amplification means, control means, notification means,
It consists of a battery, a microswitch, power supply means, and a commercial power plug. When there is an intruder, infrared rays radiated from the intruder are detected, and the intrusion is notified to the surroundings by the notification means. The infrared detector is normally driven by a current from a commercial power supply, but is driven by a battery during a power failure or the like. To stop the notification means, the micro switch may be pressed a predetermined number of times.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an infrared detector that detects the presence of a person by sound or light when detecting infrared radiation emitted from a human body, and a mechanical security system using the infrared detector.

[0002]

[Prior art]

 Conventionally, infrared detectors are often used as security sensors for detecting intruders. Conventional infrared detectors detect infrared radiation emitted by an intruder when the intruder enters the security target facility. If the level of the infrared radiation is equal to or higher than a predetermined level, the infrared detector detects the infrared radiation through a remote control device. Sends an alarm to a monitoring center or the like. Then, the response staff who is notified from the monitoring center etc. rushes to the site to take action.

[0003]

[Problems to be solved by the invention]

 However, the conventional infrared detector has a problem in that it is necessary to connect to a remote monitoring center or the like, and there is a problem that dispatching a response person at the time of outputting an alarm is expensive. An object of the present invention is to provide an infrared detector which is inexpensive to operate locally and is not operated by an installer by itself, and a mechanical security system using the infrared detector.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problem, an infrared detector according to claim 1 of the present invention includes: a sensor unit that outputs a sensor signal when detecting infrared radiation emitted from a human body; and a sensor signal input from the sensor unit having a predetermined level. Control means for outputting a notification signal when greater than; a notification means for notifying the presence of a person when the notification signal is input from the control means; converting a commercial current into a DC current; The power supply means to be supplied is an infrared detector housed in the sensor body case, and a commercial power plug connected to the power supply means is fixed integrally with the sensor body case or extended by a predetermined length from the sensor body case. It is characterized by being connected. The infrared detector according to claim 1, wherein the control means does not output the notification signal within a first predetermined time from when the current is supplied from the power supply means. It is. 4. The infrared detector according to claim 3, wherein the control unit outputs a notification signal when a second predetermined time has elapsed when it is determined that the level of the sensor signal is higher than a predetermined value. An infrared detector according to claim 1 or 2. The infrared detector according to claim 4, further comprising: a micro switch that detects that the commercial power plug is inserted into an outlet; and a battery that supplies a direct current to each of the units. The microswitch detects that a power supply plug is inserted into an outlet, and switches from a power supply to a battery when a commercial current is not supplied to the power supply. Item 4. An infrared detector according to Item 3. 6. The infrared detector according to claim 5, wherein the control unit stops outputting the notification signal when the micro switch is pressed a predetermined number of times while outputting the notification signal. Item 6. An infrared detector according to item 4. The mechanical security system using the infrared detector according to claim 6, wherein the notifying unit notifies the presence of a person by transmitting a radio signal, and the infrared detector according to claim 5, Is installed in the building where is installed, and wirelessly receiving means for notifying the presence of a person by sound or light when receiving the wireless signal.

[0005]

[Embodiment of the invention]

Embodiment 1 Embodiment 1 according to claims 1, 2, and 3 of the present invention will be described with reference to FIGS. 1, 3, 4, 5, 6, 7, and 8. FIG. This will be described with reference to FIG. FIG. 1 is a block diagram illustrating a configuration of the infrared detector 10 and the commercial power supply 101 according to the first embodiment. The sensor means 1 outputs a sensor signal when detecting infrared rays radiated from a human body. For example, there is a sensor means using a pyroelectric element. The amplification means 2 amplifies the input sensor signal. The control means 3 compares the level of the sensor signal input from the amplification means 2 with a predetermined value, and outputs a notification signal when it is determined that the level of the sensor signal is higher. OM, RAM, etc. The notification means 4 notifies the surroundings of the person by sound or light when a notification signal is input, and is, for example, a buzzer, a speaker, and a lamp. The power supply means 5 converts a commercial current into a DC current and supplies the sensor means 1, the amplification means 2, the control means 3 and the notification means 4 with a DC current, and is composed of, for example, a converter. The commercial power plug 6 is a part that receives commercial current from the commercial power supply. The infrared detector 10 includes a sensor unit 1, an amplification unit 2, a control unit 3, a notification unit 4, a power supply unit 5, and a commercial power plug 6. The commercial power supply 101 supplies a commercial current, and supplies the commercial current via an outlet, for example. FIG. 7 is a schematic view when the infrared detector 10 is viewed from the side. A commercial power plug 6 is integrally fixed to the infrared detector 10. FIG. 8 is a schematic diagram showing another embodiment of the infrared detector 10. The commercial power plug 6 is connected to the infrared detector 10 via an electric cord. If there is no problem even if the infrared detector 10 is attached to the outlet, that is, if there is no obstacle when detecting an intruder, the infrared detector 10 in the embodiment of FIG. 7 may be installed. If the infrared detector 10 is attached to the outlet and there is an obstacle, that is, if there is an obstacle when detecting an intruder, the commercial power plug 6 of the infrared detector 10 shown in FIG. , And the infrared detector 10 may be installed at an appropriate position. FIG. 6 is a schematic diagram when the infrared detector 10 is installed in the building 102. The building 102 has two floors, and a resident 103 of the building 102 is sleeping on a bed 104 on the first floor. The second floor is unmanned, and an infrared detector 10 is attached to a commercial power supply 101.

Next, an operation of the infrared detector 10 will be described. FIG. 3 is a flowchart showing the operation of the infrared detector 10. In FIG. 6, when an intruder enters the second floor of the building 102, the sensor means 1 outputs a sensor signal by infrared rays radiated from the intruder (step 1). The amplification means 2 that has received the sensor signal amplifies the sensor signal (step 2). The control means 3 having received the sensor signal from the amplifying means 2 compares the level of the sensor signal with a predetermined value, and outputs a notification signal when the level is higher than the predetermined value (step 3). The notification means 4 to which the notification signal has been input notifies the resident 103 on the first floor of the presence of the intruder by, for example, sounding a buzzer sound. The resident 103 can hear the buzzer to know the presence of the intruder, go to the second floor to see the situation, or call the police at 110.

FIG. 4 is a flowchart showing an operation of the infrared detector 10 when the infrared detector 10 is attached to the commercial power supply 101. When the infrared detector 10 is attached to the commercial power supply 101, a timer in the control means 3 of the infrared detector 10 starts (steps 1 and 2). Thereafter, when the first predetermined time has elapsed, the control means 3 becomes effective (steps 3, 4, 5). That is, during the first predetermined time, the control unit 3 does not output the notification signal even if the sensor signal is input from the sensor unit 1. The first predetermined time is a time required as a warm-up time of the sensor means 1 and a time required for a person who attaches the infrared detector 10 to the commercial power supply 101 to separate from the detection area of the infrared detector 10 after wearing. It is desirable to have time to clear both. Otherwise, the sensor unit 1 will not operate sufficiently, or the wearer of the infrared detector 10 will detect himself and the notification unit 4 will operate.

FIG. 5 is a flowchart showing an operation of the infrared detector 10 when the infrared detector 10 is detached from the commercial power supply 101. Steps 1, 2, and 3 are the same as steps 1, 2, and 3 in FIG. Thereafter, the control means 3 activates a timer in the control means 3 when the level of the sensor signal input from the amplifying means 2 is larger than a predetermined value (step 4). If the current supply is not interrupted within a second predetermined time (for example, 30 seconds) from the start of the timer, that is, if the infrared ray detector 10 is not removed from the commercial power supply 101, the notification means is provided when the second predetermined time has elapsed. 4 operates (steps 5, 6, 7). In other words, if the infrared detector 10 is removed from the commercial power source 101 within the second predetermined time after the timer is started, the notification means 4 does not operate. Thus, it is possible to avoid a situation in which the person who removes the infrared detector 10 detects himself and the notification means 4 is activated.

[0009]

Second Embodiment A second embodiment of the infrared detector 11 according to the fourth aspect of the present invention will be described with reference to FIG. FIG. 2 is a block diagram illustrating a configuration of the infrared detector 11 and the commercial power supply 101 according to the second embodiment. In the configuration of the infrared detector 11, the sensor unit 1, the amplification unit 2, the control unit 3, the notification unit 4, the power supply unit 5, and the commercial power plug 6 are the same as those in the first embodiment. The battery 7 supplies a DC current in an emergency. The microswitch 8 detects that the commercial power supply plug 6 is attached to the commercial power supply 101, and has an open / close contact. The commercial power supply 101 is the same as in the first embodiment. Next, the operation will be described. For example, in the event of a power failure or disconnection of the power line, the supply of current from the commercial power supply 101 is stopped even though the microswitch 8 detects that the commercial power supply plug 6 is attached to the commercial power supply 101. In this case, the control means 3 switches the current supply source from the commercial power supply 101 to the battery 7. As a result, current is supplied from the battery 7 even at the time of a power outage or the like, so that security performance can be maintained. Other operations are the same as those of the first embodiment.

[0010]

Third Embodiment A third embodiment of the infrared detector 11 according to the fifth aspect of the present invention will be described with reference to FIG. In FIG. 2, the configurations of the infrared detector 11 and the commercial power supply 101 are the same as those in the second embodiment. Next, the operation will be described. If the infrared detecting means 11 is removed from the commercial power supply 101 when the notifying means 4 is not operating, the current supply is interrupted. If the infrared detecting means 11 is removed from the commercial power supply 101 while the notifying means 4 is operating, the current supply is performed. A program in the control means 4 of the infrared detector 11 is set so that the source is switched to the battery 7. By doing so, it is possible to prevent an intruder from stopping the operation of the notification means 4 by removing the infrared detector 11 from the commercial power supply 101 while the notification means 4 is operating. In order for the resident 103 or the like to stop the operation of the notification means 4 after removing the infrared detection means 11 from the commercial power supply 101, the micro switch 8 may be pressed a predetermined number of times (for example, three times). Other operations are the same as those of the second embodiment.

[0011]

Fourth Embodiment A fourth embodiment of the present invention relating to a mechanical security system using the infrared detector 10 according to the sixth aspect of the present invention will be described with reference to FIG. FIG. 1 is a block diagram showing a configuration of an infrared detector 10 and a commercial power supply 101 according to a fourth embodiment, which is similar to that of the first embodiment. Next, the operation will be described. The amplification means 2 amplifies the sensor signal output by the sensor means 1 by the infrared rays radiated from the intruder. The control means 3 having received the sensor signal from the amplifying means 2 compares the level of the sensor signal with a predetermined value and outputs a radio transmission signal when the level is higher than the predetermined value. The notifying unit 4 that has received the wireless transmission signal transmits the wireless signal to a wireless receiving unit (not shown) near the bed 104 on the first floor in FIG. 6, for example. The wireless receiving means that has received the wireless signal notifies the resident 103 of the presence of the intruder by, for example, a buzzer sound. The resident 103 can know the presence of the intruder by listening to the buzzer sound, can go to the second floor to see the situation, and make a 110 call to the police. Further, in this case, the buzzer sound is not heard by the intruder, so that the safety is further ensured when the resident 103 goes to see the intruder.

When the infrared detector is attached to a commercial power supply, a buzzer may be sounded for a moment to notify the wearer that the infrared detector is operating normally.

[0013]

[Effect of the invention]

 As described above, according to the infrared detector of the present invention and the mechanical security system using the infrared detector, there is no need to connect to a remote monitoring center, and a response person is dispatched when an alarm is output. Since there is no need to obtain it, inexpensive devices and systems can be realized. Further, until the first predetermined time elapses after the infrared detector is attached to the commercial power supply, the control means outputs the notification signal or the wireless transmission signal even if the level of the input sensor signal is higher than the predetermined value. Since no output is made, it is possible to avoid a situation in which a person who attaches the infrared detector to a commercial power supply activates the notification means by himself. Further, even if the sensor means detects a person, if the infrared detector is removed from the commercial power supply within the second predetermined time, the notification means does not operate, and the person who removes the infrared detector activates the notification means by himself / herself. It is possible to avoid a situation where the user is caused to do so. Further, even when the current supply from the commercial power supply is stopped, the current can be supplied from the built-in battery, so that the security performance can be maintained even at the time of power failure or the like. Furthermore, when the notification means is operating, the operation of the notification means can be stopped by pressing the micro switch a predetermined number of times, so that even if an intruder removes the infrared detector from the commercial power supply, the operation of the notification means is not affected. Without stopping, the operation of the notification means can be stopped only by authorized persons. In addition, when an intruder is detected, the presence of the intruder is notified by transmitting radio waves from the infrared detector and detecting the presence of the intruder by a wireless reception unit at a remote place, so that the intruder can be notified of the intrusion without being noticed by the intruder. .

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an infrared detector 10.

FIG. 2 is a block diagram showing a configuration of an infrared detector 11;

FIG. 3 is a flowchart showing an operation of the infrared detector.

FIG. 4 is a flowchart showing an operation when the infrared detector is mounted.

FIG. 5 is a flowchart illustrating an operation when the infrared detector is removed.

FIG. 6 is a schematic diagram when an infrared detector is installed in a building in each embodiment.

FIG. 7 is a schematic view when the infrared detector 10 is viewed from the side.

FIG. 8 is a schematic diagram showing another embodiment of the infrared detector 10.

[Explanation of symbols]

 Sensor means 1 Amplification means 2 Control means 3 Notification means 4 Power supply means 5 Commercial power plug 6 Battery 7 Micro switch 8 Infrared detector 10, 11 Commercial power supply 101 Building 102 Resident 103 Bed 104

Claims (6)

[Utility model registration claims] 1. Sensor means for outputting a sensor signal when detecting infrared rays radiated from a human body, control means for outputting a notification signal when the level of a sensor signal input from the sensor means is greater than a predetermined value, and control means Infrared detector in which a notifying means for notifying the presence of a person when a notifying signal is input from the power source means for converting a commercial current into a direct current and supplying a direct current to the respective means is housed in a sensor body case. An infrared detector characterized in that a commercial power plug connected to the power supply means is integrally fixed to the sensor main body case, or is connected to the sensor main body case by extending it for a predetermined length. 2. The infrared detector according to claim 1, wherein the control means does not output the notification signal within a first predetermined time from when the current is supplied from the power supply means. 3. The control means according to claim 1, wherein said control means outputs a notification signal when a second predetermined time has passed when it is determined that the level of said sensor signal is higher than a predetermined value. Item 7. An infrared detector according to Item 2. 4. A micro switch for detecting that the commercial power plug is inserted into an outlet, and a battery for supplying a direct current to each of the means, wherein the control means includes a plug for the commercial power. 4. The infrared ray according to claim 1, wherein the micro switch detects that the power supply is inserted into an outlet, and switches from a power supply to a battery when no commercial current is supplied to the power supply. Detector. 5. The system according to claim 4, wherein the control means stops outputting the notification signal when the micro switch is pressed a predetermined number of times while outputting the notification signal. Infrared detector. 6. The infrared detector according to claim 1, wherein the notifying unit notifies the presence of a person by transmitting a radio signal, and the notifying unit is installed in a building in which the infrared detector is installed. And a wireless receiving means for notifying the presence of a person by sound or light when the wireless signal is received.