KR100773600B1 - United sensing apparatus and method thereof - Google Patents

Abstract

A united sensing apparatus and a sensing method thereof are provided to improve the reliability of sensing by effectively arranging a plurality of sensing devices and organically combining the sensing information of the sensing devices. A united sensing apparatus includes a human body detecting sensor(210), a temperature sensor(230), a gas sensor(250), an interface(270), a controller(200), and a protective case. The human detecting sensor has a plurality of PIR(Pyroelectric InfraRed) sensors(220) and increases a sensing area. The temperature sensor senses the change of temperature, and the gas sensor senses the change of concentration of gas. The controller determines the generation of a fire based on the outputs of the human detecting sensor, the temperature sensor, and the gas sensor, and provides the sensing result to the interface. In the protective case, the plurality of sensors, the controller, and the interface are integrally arranged, and a single lens part opposite to the PIR sensor of the human detecting sensor is included.

Description

Integrated sensing device and its sensing method {UNITED SENSING APPARATUS AND METHOD THEREOF}

1 is a configuration diagram showing the configuration of a general monitoring system.

2 is a conceptual diagram showing an application example of a general monitoring system.

Figure 3 is a perspective view of the appearance of one embodiment of the present invention.

Figure 4 is a perspective view of the appearance of another embodiment of the present invention.

5 is a layout view of a PIR sensor according to an embodiment of the present invention.

Figure 6 is a block diagram showing the configuration of an integrated sensing device according to an embodiment of the present invention.

Figure 7 is a block diagram showing a human body monitoring portion of the integrated sensing device according to an embodiment of the present invention.

8 is a block diagram showing a controller configuration according to an embodiment of the present invention.

9 is a flow chart showing a human body detecting operation process according to an embodiment of the present invention.

10 is a flow chart showing a fire occurrence detection operation process according to an embodiment of the present invention.

11 is a conceptual diagram showing an application example of the monitoring system to which the integrated sensing device according to an embodiment of the present invention is applied.

*** Explanation of symbols for main parts of drawing ***

100: protective case 101: lens unit

102: right angle connector 103: fastening portion

112: fixing part 121, 122: PIR sensor

130: Fresnel lens 200: control unit

201: timer unit 202: buffer unit

203: sensor input / output unit 204: determination unit

210: human body detection sensor 220: PIR sensor processing unit

230: temperature sensor unit 240: temperature sensor processing unit

250: gas sensor unit 260: gas sensor processing unit

270: interface unit

The present invention relates to an integrated sensing device and a sensing method thereof, and more particularly, to an integrated sensing device and a sensing method for providing accurate intrusion and fire detection information in an intensive and general-purpose manner.

Surveillance systems that monitor specific locations through multiple monitoring means and enable countermeasures in the event of anomalies are applied to buildings, industrial sites, places where goods are sold or stored, and where expensive items are handled. In addition, such a detection system is actively introduced in large apartments and private houses. In particular, as infrastructures such as home networking and integrated remote security systems become active, subscribers to various security services that protect life and property are rapidly increasing.

The basis of such security service is the application of surveillance system, and improving the performance of the surveillance system and operating the surveillance system effectively is the basis for improving the quality of security service.

Therefore, researches are being actively conducted to effectively construct and arrange the sensing means, and to analyze the various information provided by the sensing means to detect valid signals, and to intruder detection and fire detection with high security priority. Sensors and ways of using them are emerging.

1 shows a configuration of a monitoring system for monitoring an intruder and a fire, a plurality of human body detection sensors 11 and 12 capable of detecting a human body as shown, and a temperature sensor 13 for detecting a fire. ) And the smoke sensor 14 are connected to the integrated control device 10, respectively, the integrated control device 10 by the setting of the administrator whether or not through the state of the respective sensors (11-14) Will be identified and appropriately handled.

FIG. 2 illustrates a case where the monitoring system shown in FIG. 1 is applied to a general home, and a temperature sensor 13 and a smoke sensor 14 are installed near a gas range 20 having a high risk of fire. 25) The human body sensor 11 is installed in the vicinity, and the additional human body sensor 12 is installed in an area outside the range that the human body sensor 11 can detect. As shown in the drawing, each sensor must be mounted in a different place, which increases wiring for installation, thereby increasing installation cost and damaging aesthetics. The wiring required for the monitoring system can be buried inside the wall, but only at a limited time such as at the time of initial construction or reconstruction, and when the buried type is installed, it is difficult to change and recovery is difficult in case of an abnormality in the wiring.

In particular, the integrated control device 10 has a hardware design for processing the received signal in consideration of the characteristics of the plurality of sensors (11-14), and controls the plurality of sensors (11-14) Since a special algorithm or the like is configured, it is possible to install a monitoring system that can detect a valid state only by using the integrated control device 10. Thus, the integrated control device 10 and the plurality of sensors 11 to 14 It is not universally compatible. That is, since the integrated control device 10 has unique characteristics for each manufacturer, and the characteristics of the sensors 11 to 14 to be connected are also considered, the integrated control device 10 has a function desired by an administrator or a user. If not, it is necessary to reconfigure the entire surveillance system. This is a system manufacturer's own product is less likely to be newly installed, the user who has already applied the system is a burden to install the entire system for a new function that is not supported by the system.

For the above reasons, when selecting an integrated control device having desired functions while maintaining the existing sensors, the compatibility with the sensors and the reliability of the detection result through these sensors must be comprehensively selected. This is very limited. In particular, since each of the sensors has a simple specific detection function, all functions for effectively determining the current situation using the control or detected information on them are present in the integrated control device. The state can be changed, and the replacement cost of the integrated control with all these sensing functions can be high.

In addition, it is difficult to effectively reconfigure the monitoring system according to the situation or the desired function due to the limitation of the integrated control device as described above, and the change is not easy.

Thus, there is an urgent need for integrated sensing devices for surveillance systems that can support simple installation, reliable sensing, high levels of compatibility and flexible monitoring system design and modification.

The purpose of the present invention, which is newly proposed for application to a monitoring system, is to effectively integrate a plurality of sensing means for monitoring and organically combine the sensing information of each sensing means to increase the reliability of the detection and to generalize the sensing results. It is to provide an integrated sensing device and its sensing method that maximize the compatibility by converting the signal into a universal interface.

Another object of the embodiment of the present invention is to configure a plurality of sensors for detecting a human body to extend the detection range, to apply a temperature sensor and a gas sensor to detect a fire, in addition to the flash detection function of the human body sensor The present invention provides an integrated sensing device and a sensing method thereof capable of reliably detecting a fire at an early stage.

It is yet another object of embodiments of the present invention to organically integrate a plurality of sensors, to generate self-reliable information appropriate for the purpose, and to provide the generated information by using a universal local area communication means, thereby providing universal local area communication means. It is to provide an integrated sensing device and its sensing method to maximize the flexibility of the surveillance system construction can be applied to all data processing devices that can use the integrated control device.

Another object of the embodiment of the present invention is to process the signal received through the human body sensor through the unit time, the threshold value and the continuity of the detection to increase the detection reliability of the human body that is the monitoring target of the monitoring system and interlock the temperature sensor and gas sensor Integrated sensing device to increase the reliability and speed of situation determination by dividing fire occurrence into early stage and complete stage in consideration of continuity of change of unit time, detection value, change of unit time and proportional change, and change of human sensor And a sensing method thereof.

In order to achieve the above object, the integrated sensing device according to an embodiment of the present invention includes a human body sensor unit for increasing the detection area by arranging a plurality of PIR sensors at a right angle; A temperature sensor unit detecting a temperature change; A gas sensor unit for detecting a change in gas concentration; An interface unit for outputting a detection result through a general-purpose communication method; The detection of the human body is based on the unit time and the continuous detection state based on the output of the human body sensor unit, and based on the output of the temperature sensor unit and the unit per hour change and continuous detection state and the output of the human body sensor unit. A control unit for identifying a fire occurrence in a plurality of stages and providing the detected detection result to the interface unit; And a protective case including an integrated arrangement of the plurality of sensor units, the control unit, and the interface unit, and having a single lens unit facing the PIR sensor of the human body sensor unit.

The human body sensor unit includes a PIR sensor processor for providing a driving signal to the PIR sensor and amplifying and filtering the measured signal.

The interface unit may include one or more communication means of general wireless short range communication means including RS232 / 485, USB, Bluetooth, IrDA, RF, Zigbee, and infrared communication.

The control unit detects a continuous operation longer than a reference length (b seconds, in which a> b) is set to be less than or equal to the unit time within a predetermined unit time (a second) of a predetermined number of times (n times). If the number of times (m times) is more than the predetermined number of times is determined by the human body detection.

The control unit measures the change in the output of the temperature sensor unit and the gas sensor unit every unit time (c seconds) so that the temperature increase of the temperature sensor unit is higher than the reference (d degrees) while the degree of change of the gas sensor unit is the reference (e%). If the abnormality is continuously detected more than a predetermined number of times (k times), and if there is a change in the output of the human body monitoring sensor during the process is determined as the initial stage of the fire occurrence, after the initial stage of the fire occurrence temperature of the temperature sensor unit Is over the limit (f degree), it is determined that the fire is occurring completely.

In addition, the integrated sensing method according to another embodiment of the present invention, in the sensing method using an integrated sensing device incorporating a human body sensor unit, temperature sensor unit and gas sensor unit and a control unit and communication means for controlling them in a single case. The method may further include: detecting a human body based on a state in which the continuous movement occurs based on a length of a continuous motion occurrence and a unit time by sensing an output of the human body sensor; A temperature and gas concentration sensing step of determining a current temperature and a gas concentration through the temperature sensor and the gas sensor, respectively; An initializing agent detecting step of detecting an initial fire occurrence based on the degree of change per unit time of the temperature sensor and the gas sensor, the number of consecutive occurrences thereof, and the human body sensor output during the time; A complete fire detection step of grasping a complete fire when the output of the temperature sensor is above a threshold value after the initial fire occurrence is identified; And an output step of outputting the sensing information obtained through all the sensing steps in a general-purpose communication method.

Embodiments of the present invention as described above will be described in detail with reference to the accompanying drawings.

3 and 4 are perspective views showing the appearance of the integrated sensing device according to an embodiment of the present invention, Figure 3 shows a variable structure that can freely orient the integrated sensing device in a desired direction, Figure 4 is the integrated sensing It shows a fixed structure that can be fixedly mounted.

3 and 4, the integrated sensing device shown in FIG. 3 includes a human body detecting sensor, a temperature sensor and a gas sensor in a single protective case 100 and a controller and an interface for controlling them and outputting them in a universal communication method. It is composed. The protective case 100 has a cylindrical shape in order to secure a human body sensing sensing area of at least 200 degrees to 240 degrees, and the lens unit 101 for assisting the detection of the human body sensing sensor includes the protective case ( It has a form directly fastened to 100).

3 is configured to allow the protection case 100 to be rotated in the horizontal and vertical directions by further configuring a right angle connecting tube 102 or a fastening part 103, etc. to direct a variety of directions, the fastening part ( In the fixed state 103, the protective case 100 can be freely moved in left and right directions.

4 shows that the protective case 100 is fixedly mounted by the fixing part 112, and the fixing part 112 may have a free form, so that the protective case 100 is in a desired direction during initial fixing. Can be directed.

FIG. 5 illustrates a configuration of a human body sensor part applied to the integrated sensing device illustrated in FIGS. 3 to 4, and a plurality of human body sensors 121 and 122 are disposed at right angles to dramatically improve the detection range. In addition, the lens unit 130 has a structure in which a lens unit 130 having a function of easily detecting small movements of a sensing target can be easily detected while protecting them from the outside. The lens unit is not installed separately, but is directly coupled to the protective case to facilitate configuration.

In general, the human body sensors 121 and 122 are sensors for detecting the movement of an object having a constant infrared ray, commonly referred to as a pyroelectric infrared (PIR) sensor, but may also be referred to as a moving IR detector.

The PIR sensor uses the pyroelectric effect of absorbing thermal energy when ferroelectrics receive infrared rays, causing a change in spontaneous polarization, and inducing charge in response to the amount of change, and such PIR sensors sensitively detect a small amount of infrared rays generated in a human body. do. However, since the PIR sensor detects a change in infrared rays rather than detecting infrared rays in a uniform state, the PIR sensor filters the desired band through the illustrated lens unit 130, and patterns of various lens units (for example, Fresnel patterns). ), A means of amplifying even small movements largely is essential.

When the PIR sensor is used as a single sensor, since the detection range is about 90 degrees to 120 degrees, an additional sensor must be separately installed in a range that cannot be detected by the sensor. Therefore, in the illustrated embodiment, a plurality of PIR sensors 121 and 122 are disposed at right angles to monitor a wide band with only a single integrated sensing device without installing such an additional sensor, so that the detection range θ is up to 200 to 240 degrees. Increase.

6 is a block diagram showing the configuration of the integrated sensing device, as shown in the PIR sensor processing unit for providing an appropriate voltage to the human body sensor 210 and the sensor unit 210 and filters and amplifies the received signal ( 220, the temperature sensor 230 and the temperature sensor processor 240 for processing signals provided by the temperature sensor 230, the gas sensor 250 for measuring the concentration of a specific gas, and the corresponding gas. Additional sensing means such as a gas sensor unit 260 for processing a signal provided by the sensor unit 250, a control unit 200 for identifying an effective sensing state based on sensing signals provided from the sensing means; The interface unit 270 outputs the sensing state information provided by the controller 200 in a general general communication method.

Basically, if the human body detection function and the temperature detection function are applied, intrusion detection and temperature change can be confirmed. Incorrect but fire detection is also possible. In this embodiment, however, a function of detecting the concentration of gas (particularly, carbon dioxide) is additionally configured in order to accurately distinguish between a temperature rise and fire caused by simple heating or using a heating mechanism. In particular, the present embodiment utilizes the result of sensing the temperature and the gas concentration to detect the fire in multiple stages, and also considers the output of the human body sensor for more effective fire detection. Therefore, the integrated sensing device having the above configuration can completely perform intruder detection and fire detection, which are the main purposes of the monitoring system, with a single device arrangement.

The temperature sensor may apply a sensing means for changing the resistance according to a temperature, such as a thermistor, or a semiconductor sensing means for outputting a fixed voltage according to the temperature. If a resistance change means such as thermistor is to be used, a device having high linearity should be applied, and if a semiconductor sensing means is used, a wide detection range should be applied. In addition, since the temperature sensor unit 230 and the gas sensor unit 250 need to be exposed to the outside air, an opening for air flow may be formed in the protective case.

The interface unit 270 outputs sensing information provided by the controller 200 in various ways, and simply inputs and outputs multiple channels (or multiple ports) for providing logical digital information and modulated analog information. It may be a communication driver (eg, RS232 / 485, USB, etc.) to support a specific general-purpose communication method, and may use a short-range wireless communication method (eg, Bluetooth, IrDA, RF, Zigbee, infrared communication). It may be a communication module for supporting. In addition, the interface unit 270 not only provides information provided by the control unit 200 but also serves as a means for providing an external control signal to the control unit 200. The sensing information may be selectively provided or the sensing state may be adjusted by a general control protocol or a specific protocol.

In other words, any integrated control device may be applied as long as it has a universal interface capable of a wired or wireless connection with the interface unit 270, which may use any integrated control device manufactured by any manufacturer as desired. This means that the configuration becomes very flexible. For example, in case of emergency, when the integrated sensing device is interlocked with a communication device having an automatic contact function, a remote monitoring system can be easily configured, and a terminal type integrated control device for providing a centralized security service and the If integrated sensing device is interlocked, security service can be provided in remote place simply. In addition, in case of linking the integrated sensing device with a widely-used personal computer, a monitoring system can be configured by simply installing an application.In addition, when using the Internet or a local area network, an emergency contact (SMS, e-mail) or a webcam (Web Cam) can be configured. ) Can also be configured at low cost.

To this end, the control unit 200 malfunctions that may occur variously by individually and organically integrating and processing various sensing signals provided through the PIR sensor processing unit 220, the temperature sensor processing unit 240, and the gas sensor processing unit 260. You must provide reliable monitoring information that has been blocked in advance.

7 is a block diagram showing a more detailed configuration of the human body sensor and the PIR sensor processing unit 220 according to an embodiment of the present invention, as shown, a single planel lens 211 for filtering and motion amplification, and The first PIR sensor 212 and the second PIR sensor 213 disposed perpendicular to each other, and independent amplification & filtering units 221 and 222 for amplifying and filtering the respective sensors are shown.

The PIR sensors 212 and 213 are exposed to various sources of error by the lens 211 for sensitive motion detection, such as by the movement of various pets (especially mammals), irradiation of integrated light such as flash or the sun. Various errors will occur. In the case of PIR sensors that are applied to devices such as simply turning on and off the lights according to the movement of the target, there is no big problem.However, in the case of PIR sensors that are applied to a surveillance system for detecting external intrusions, this malfunction is a fatal problem of reduced reliability. This can be

Therefore, it is necessary to distinguish between false detection signals caused by various error sources and detection signals caused by human movements. For this purpose, the present embodiment considers unit time, the occurrence time and continuity of movements, and the like. Try to distinguish noise factors.

FIG. 8 is a control unit for identifying valid sensing information by individually or collectively processing sensing information of the PIR sensor processing unit 220, the temperature sensor processing unit 240, and the gas sensor processing unit 260 illustrated in FIGS. 6 and 7. Note that the block diagram showing the internal configuration of 200, the actual internal configuration may be composed of a single microcontroller, or may be separately configured into a plurality of hardware devices.

The illustrated control unit 200 largely includes a sensor input / output unit 203 for receiving a signal from each of the processing units 220, 240, and 260 and providing a sensor driving signal if necessary, and a timer unit for generating a reference timing of detection. 201, a buffer unit 202 for temporarily storing sequential measurement information or measurement states, and measured using the sensor input / output unit 203, the timer unit 201, and the buffer unit 202. Determination unit 204 is configured to grasp the effective human body detection and the step-by-step occurrence of a fire while eliminating malfunction factors from sensing information, and to process them into information according to a general-purpose or prescribed protocol and output them through an interface for performing a communication function. . Of course, some or all functions of the interface unit may be configured in the controller 200.

The determination unit 204 basically determines the generation length of the detection signal received for each sensor through the timer unit 201 and analyzes the detected signals based on different unit times. In particular, by utilizing the characteristics of the integrated sensor combination that the combination of the sensor is not arbitrary and its position, sensitivity and detection characteristics are completely fixed, it is possible to perform the judgment that effectively combines them as well as the individual functions of each sensor.

First, the determination unit 204 uses the PIR sensor processing unit provided through the PIR sensor for detecting the movement of the object having the infrared emission characteristic according to each individual function, and whether or not the signal of the target object is moved, Based on time and cumulative signals, the signal is obtained by distinguishing it as a motion signal by the human body, and converting the signal of the temperature sensor processing unit provided by the temperature sensor into a temperature value to identify the current temperature value, and the signal processed by the gas sensor. By converting the gas into a gas concentration value, it basically provides the arbitrary movement and the current temperature and the current gas concentration through the interface unit that can be a variety of communication means. Using this basic information, an integrated control device or any management device that replaces the functionality of such an integrated control device (for example, a computer in a home or office, a home network server / client, a portable information processing terminal, etc.) can perform various tasks. It can be processed.

In addition, the determination unit 204 is to provide an intelligent sensing function that provides the human body sensing information and the step-by-step fire detection information that the integrated sensing device itself is invalid, flashing light, sunlight, pets Distinguish motion detection information by the human body and motion detection information by the human body, and not only distinguish the information by the error source such as the operation of a simple heating device or the operation of a heating device from the actual fire detection information, but also in case of fire. Even fires are effectively detected.

FIG. 9 is a flowchart illustrating a process in which the determination unit 204 detects a valid human motion using a PIR sensor signal for detecting a human body. As shown in FIG. 9, a unit time, a signal length (period), and a number of consecutive occurrences are shown. On the basis of this, differentiation from error sources is obtained.

First, after the PIR sensor starts sensing, if the motion is detected through the sensor, the length of the signal is detected by the timer. The length of the signal is generally shorter than a unit time, and if the length of the signal is longer than a separate reference time (for example, 1.5 seconds) not shown, it may be determined as an operation by a human body rather than an error source.

The length of the signal is relatively long when compared to the length of the signal by the other type of error source in preparation for the operation pattern of the human body, and since the abnormal movement of the human body occurs frequently within a limited time, the control unit including the determination unit When the duration of the received signal is greater than or equal to the reference, the number of occurrences thereof is accumulated by means such as counter1. Thereafter, the number of times the unit time elapses after the reference unit time has elapsed is accumulated by means such as a counter2. Then, if the number of times the signal of the predetermined length or more in the continuous limited unit time is more than the limit value is detected by the predetermined unit times, it means that the movement of a certain length or more for a limited time has been detected in this case. To judge.

In summary, the controller may be configured to set a reference length (b seconds, where a> is less than or equal to the unit time (a second) within a predetermined unit time (a second) of a predetermined number (n times) of the output provided from the PIR sensor. b) If the number of times the continuous operation is detected (m times) longer than the preset number is determined as human body detection, in some cases, the output of the sensor unit is a predetermined time (a predetermined time between the b time and a time) If abnormality is detected, it may be determined that the human body is detected.

FIG. 10 is a flowchart illustrating a process of detecting a fire using a temperature and gas sensor by a controller including a determination unit. As shown in FIG. 10, a temperature and a gas sensor are basically used, but additionally, a PIR sensor is used to move a flame due to a fire. It can be used to detect chemical gas concentration, temperature change, flame movement, etc. to comprehensively examine the occurrence of effective fire, and to classify the occurrence by additional temperature change. I would have to.

First, temperature and gas sensors (particularly, carbon dioxide sensors) sense temperature and gas concentrations, convert them into general units, and output the corresponding information to the interface through various communication methods. If such everyday information is unnecessary, this function can be omitted, and this output information can be selected by simple setting through the interface unit.

At this time, the information related to the temperature and gas must be understood from a relative viewpoint of the previous state so that the temperature rise or the gas concentration rise can be determined. Therefore, the measurement information is stored in the buffer after all the determination processes are completed. Thus, measurement information relating to previously stored temperature and gas concentrations is compared with the temperature and gas concentrations detected at this time. The measurement information may be changed in a general unit or may have a form of sensing information before conversion for internal comparison.

If both the temperature and the gas concentration are changed by more than the reference value, the number of times is accumulated by the same means as the counter 1 in order to determine the number of such changes. If there is no change above the reference value, the cumulative number of times of the counter 1 is reset. In other words, the temperature and gas concentration is continuously changed to a predetermined level or more when a fire occurs, so that the fire is only valid when such continuity is secured.

After the accumulation or reset process as described above, the measurement information about the currently measured temperature and gas concentration is stored in a buffer, and the unit time is delayed. Since the unit time relates to a temperature and gas concentration having a relatively slow rate of change, the unit time is a relatively long time compared to the unit time applied to the measurement of the human body sensor.

Thereafter, after the unit time has elapsed, the number of times the unit time has elapsed is accumulated through a means such as counter 2. Thereafter, sensing is performed for a predetermined number of unit times to determine whether the number accumulated in the same means as the counter 1 is greater than or equal to the reference value. Since the number accumulated in the means such as the counter 1 is a number of continuously changing the reference temperature and the gas concentration continuously, it is possible to determine whether a certain number of continuous temperature and gas concentration changes have occurred during a certain number of unit times. If the cumulative number of occurrences of temperature and gas concentration changes during the predetermined number of unit times does not meet the standard, the cumulative number of changes (counter 1 value) is reset.

If the number of consecutive occurrences of temperature and gas concentration changes accumulated during the unit number of times exceeds the standard, it is further determined whether the motion detection of the PIR sensor generated during the unit time exceeds a certain number of times. Judging by the occurrence. In this case, the stage of the fire can be identified based on the temperature value. In addition, when the initial fire occurrence is detected, the deepening degree of the fire may be grasped simply based on the following temperature measurement value. In addition, the deepening degree of the fire may be more precisely determined by performing the above fire occurrence detecting process.

Herein, for simplicity, the process of increasing and resetting the counter 1 is simplified and described. However, a method of maintaining a maximum number of changes in temperature and gas concentration above a reference level continuously generated in a substantially constant number of unit times is applied. It is preferable. For example, during the cumulative measurement, a method of applying the largest value among the cumulative values finally obtained by storing the accumulated value separately before resetting the value of the counter 1 may be applied.

In summary, the control unit measures the change in the output of the temperature sensor unit and the gas sensor unit every unit time (c seconds) so that the temperature increase of the temperature sensor unit is higher than the reference value (d degrees) and the degree of change of the gas sensor unit. Is more than a reference (e%) is detected more than a predetermined number of times in succession (k), and when there is a change in output of the human body monitoring sensor during the process is determined to be the initial stage of fire occurrence, the temperature of the temperature sensor unit If the value exceeds the limit (f degree), by using the method of determining the complete fire stage, all sensors can be integrated to detect the occurrence of a valid fire early.

Thereafter, the controller transmits the detected fire occurrence situation to the outside through an interface.

11 shows a case in which the integrated sensing device 310 according to the embodiment of the present invention is installed in the monitoring area, an arbitrary integrated control device 300 may be applied, and the installation is easy. In addition, even if it is applied to a variety of causes of fire (for example, the gas range 301) and the doorway 302 which is a path of intrusion in a single area, the intrusion and the occurrence of fire can be grasped completely so that the configuration of the monitoring system is easy. Installation costs and maintenance costs are greatly reduced.

As described above, the integrated sensing apparatus and the sensing method according to the embodiment of the present invention effectively integrate a plurality of sensing means for monitoring and organically combine the sensing information of each sensing means to increase the reliability of the sensing. In addition, the sensing result is converted into a general-purpose signal and provided through a general-purpose interface, thereby maximizing compatibility.

Integrated sensing device and sensing method according to an embodiment of the present invention is configured by a plurality of sensors for detecting a human body to extend the detection range, apply a temperature sensor and a gas sensor to detect a fire and the human body sensor In addition, the flash detection function has an excellent effect of reliably detecting a fire at an early stage.

An integrated sensing device and a sensing method according to an embodiment of the present invention to organically integrate a plurality of sensors, to generate self-reliable information appropriate for the purpose, and to provide the generated information using a universal short-range communication means By doing so, all the data processing devices that can use the universal short-range communication means can be applied as an integrated control device to maximize the flexibility of the monitoring system construction, and the application can also be greatly expanded.

The integrated sensing device and its sensing method according to an embodiment of the present invention process the signal received through the human body sensor through the unit time, the threshold value and the continuity of the detection to increase the detection reliability of the human body to be monitored by the monitoring system Considering the interlocked change state of the temperature sensor and the gas sensor, the fire occurrence is divided into the initial stage and the complete stage in consideration of the continuity of the unit time, the increase of the detection value, the continuity of the proportional change, and the change of the human sensor. It can increase the speed and reduce the damage to the installation target.

Claims (13)

delete A human body sensor unit configured to increase a detection area by arranging a plurality of PIR sensors at a right angle; A temperature sensor unit detecting a temperature change; A gas sensor unit for detecting a change in gas concentration; An interface unit for outputting a detection result through a general-purpose communication method; The detection of the human body is based on the unit time and the continuous detection state based on the output of the human body sensor unit, and based on the output of the temperature sensor unit and the unit per hour change and continuous detection state and the output of the human body sensor unit. A control unit for identifying a fire occurrence in a plurality of stages and providing the detected detection result to the interface unit; And a protective case in which the plurality of sensor units, the control unit, and the interface unit are integrated and provided with a single lens unit facing the PIR sensor of the human body sensor unit. The integrated sensing apparatus of claim 2, wherein the human body sensor includes two pyroelectric infrared (PIR) sensors, and the gas sensor includes a sensor for measuring the concentration of carbon dioxide. 3. The integrated sensing device of claim 2, wherein the protective case further comprises a plurality of rotatable fastening means for directing an arbitrary direction. The integrated sensing apparatus of claim 2, wherein the interface unit comprises at least one communication means of at least one of near field communication means including RS232 / 485, USB, Bluetooth, IrDA, RF, Zigbee, and infrared communication. The reference length of claim 2, wherein the controller is further configured to set the reference length (b seconds, where a> b) is less than or equal to the unit time within a continuous unit time (a second) of a predetermined number of times (n). Integrated sensing device, characterized in that determined by the human body detection when the number (m times) of longer continuous operation is detected more than a predetermined number. The integrated sensing device of claim 2, wherein the controller determines the human body detection when the output of the human body sensor is detected as a continuous motion of more than a preset reference length. The method of claim 2, wherein the control unit measures the change in the output of the temperature sensor unit and the gas sensor unit every unit time (c seconds) so that the temperature increase value of the temperature sensor unit is higher than the reference (d degrees), the degree of change of the gas sensor Is more than the reference (e%) is detected more than a predetermined number of times in succession (k), and when the output change of the human body monitoring sensor part is determined in the initial stage of the fire occurrence, the initial stage of fire occurrence After that, if the temperature of the temperature sensor unit exceeds the threshold (f degree), integrated sensing device, characterized in that it is determined to complete the fire. The integrated sensing unit of claim 2, wherein the control unit converts outputs of the temperature sensor unit and the gas sensor unit into temperature values and gas concentrations, and outputs them periodically or through an external request through the interface. Device. In the sensing method using an integrated sensing device incorporating a human body sensor unit, a temperature sensor unit and a gas sensor unit, and a control unit and communication means for controlling them in a single case, A human body sensing step of sensing an output of the human body sensor unit and detecting a human body based on a state in which the continuous movement occurs based on a length and a unit time of continuous movement occurrence; A temperature and gas concentration sensing step of determining a current temperature and a gas concentration through the temperature sensor and the gas sensor, respectively; An initializing agent detecting step of detecting an initial fire occurrence based on the degree of change per unit time of the temperature sensor and the gas sensor, the number of consecutive occurrences thereof, and the human body sensor output during the time; A complete fire detection step of grasping a complete fire when the output of the temperature sensor is above a threshold value after the initial fire occurrence is identified; And an output step of outputting the sensed information obtained through all the sensing steps in a general-purpose communication method. The method of claim 10, wherein the detecting of the human body comprises: a reference length (b seconds, wherein a) is set to be equal to or less than the unit time within a continuous unit time (a second) of a predetermined number (n times) of the output of the body detecting sensor unit. and detecting the human body detection when the number of times of continuous operation longer than (b) is greater than a preset number of times. The method of claim 10, wherein the detecting of the temperature and the gas concentration comprises converting outputs of the temperature sensor unit and the gas sensor unit into temperature values and gas concentrations, and outputting them periodically or through an external request through the communication unit. Sensing method of the integrated sensing device further comprising the step of. The gas sensor according to claim 10, wherein the initial material detecting step measures the change of the output of the temperature sensor unit and the gas sensor unit every unit time (c seconds) so that the temperature increase of the temperature sensor unit is higher than a reference value (d degrees). And a case where the degree of change of the negative is greater than or equal to the reference (e%) and is detected more than a predetermined number of times in succession (k), and determining the initial stage of the fire when there is a change in output of the human body sensor. Sensing method of the integrated sensing device, characterized in that.

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