JP5515146B2 - Security device, program - Google Patents

Description

  The present invention relates to a crime prevention device and the like for preventing crimes by monitoring intruders on buildings and moving objects.

  Conventional basic security devices detect stresses and vibrations on moving objects such as buildings such as houses and parked vehicles with sensors, and the level of these sensors exceeds a predetermined value indicating an abnormal situation such as theft or mischief. When the number of occurrences per unit time is greater than or equal to a predetermined value, when the moving average of the sensor level deviates more than a predetermined amount from the noise floor level, or when they occur in combination Alarms are generated by sound and light. If the communication means is provided, a predetermined notification indicating an abnormal situation is sent to the owner or the security company.

  However, conventional crime prevention devices, when earthquakes occur, when large vehicles such as dump trucks, trains, etc. pass nearby, when large sound pressure due to large fireworks or lightning strikes such as fireworks displays, Sensors detect when there is a strong wind such as a typhoon, when the vehicle is stopped due to traffic jams on a vibrating platform such as on a bridge, or when entering a natural event such as a normal traffic situation Since the level of stress or vibration to be performed is equal to or higher than a predetermined value indicating an abnormal situation, a false alarm or erroneous notification of the abnormal situation may be sent.

  In addition, in the security devices having communication means, if there is a problem with the alarm means of the self-protection device, the communication means will notify the other vehicles located in the vicinity by the communication means and notify By doing so, other security devices in vehicles have been proposed that generate alarms. On the other hand, in the case of such a crime prevention device, if there is a malfunction in the alarm means of the crime prevention device in another vehicle located in the vicinity, the communication device will automatically receive an abnormal situation notification from the crime prevention device. The alarm of the security device was generated (for example, refer patent document 1).

JP 2006-35991 A

  However, the conventional crime prevention apparatus as described above is a case where the vibration detected by the sensor is an artificial vibration that a person such as a crime or mischief performed for an individual vehicle for some purpose, or a natural event or Since it was not possible to determine whether the vibration was due to normal traffic conditions, it was not possible to eliminate false alarms and false notifications of abnormal situations. Moreover, even if it is a crime prevention apparatus which has the conventional communication means of patent document 1 etc., the notification of an abnormal condition is transmitted / received by a communication means, but it is only judged whether the alarm is generated using the notification content. Met. Therefore, since conventional security devices do not determine whether the vibration detected by the sensor is due to human factors or other factors, false alarms and erroneous notifications of abnormal situations cannot be reduced.

  Therefore, in order to solve the above problems, the present invention discriminates, for example, whether the vibration detected by a sensor or the like is due to an artificial cause or other factors, and gives a false alarm or an erroneous notification of an abnormal situation. It aims at providing the crime prevention device etc. which can be reduced.

In order to solve the above problems, in the security device according to the embodiment of the present invention, an abnormality detection unit that detects an abnormal state level and a communication unit that can receive abnormal state level data detected from other security devices A determination unit that determines whether or not the abnormal state level is detected based on the detection result of the abnormal state level of the abnormality detection unit and the received abnormal state level data, and an alarm if the determination result is not a human abnormal state And an alarm unit for suppressing
Suppressing an alarm includes, for example, not generating an alarm, stopping an alarm that has occurred, and making the intensity of an alarm smaller than a normal intensity. For example, the alarm unit is configured to issue an alarm when the abnormal state level detected by the abnormality detection unit exceeds a level that requires a warning (for example, a predetermined reference level), and the determination result by the determination unit is not an artificial abnormal state. In such a case, the alarm may be suppressed.
In this aspect, for example, the abnormality detection unit detects an abnormal state with the sensor of the own device, and the communication unit receives data of the abnormal state detected by the sensors of other security devices in the vicinity. Then, the data received by the determination unit is compared with the detection data of the own device to determine whether each data is in the same range or shows a tendency to change in the same manner. Furthermore, if the determination unit can determine that the change is the same range or change, it is highly possible that the determination unit is not artificial, and suppresses the alarm of the alarm unit. This can reduce erroneous detection of abnormal situations.
For example, if the abnormal state level data from other security devices in the surroundings and the abnormal state level data of the own device are compared, and each data is in the same range or shows a tendency to change similarly, The alarm may be suppressed by determining that there is no abnormal state.

Preferably, it is preferable to determine whether or not the artificial abnormal state takes into account the effectiveness of the received abnormal state level data. For example, the determination unit may determine the effectiveness of the received abnormal state level data, and determine whether or not the artificial abnormal state is in consideration of the obtained effectiveness. The effectiveness may be, for example, the reliability of another crime prevention device that transmits abnormal state level data, or the degree of association between another crime prevention device and its own crime prevention device. The effectiveness may be obtained based on data such as the installation position of the security device, the distance from the own device, the owner, the occupant, and the installation date / time. In particular, it is preferable to obtain not only the current data but also the past data and the data change status. For example, if the installation position is close to your own device, the owner / occupant is your own, the installation date / time is over a long period of time, or the change in the installation position is small, the effectiveness will be reduced. Various modes such as increasing can be taken, and it is particularly preferable to obtain the effectiveness by combining a plurality of these. For example, the effectiveness may be obtained based on data detected by a detection unit such as a sensor, or may be obtained based on data obtained from another device through communication or the like. Further, it may be obtained based on the number of data acquired from another device.
For example, when each level of abnormal state level data received from another crime prevention device is not less than a predetermined level that is determined as the artificial abnormal state (for example, when it exceeds a predetermined number), the other crime prevention It may be determined that this is due to a natural state occurring in the entire environment including the apparatus and is not an artificial abnormal state. You may make it determine based on the statistical value of the abnormal condition level data transmitted from the some other crime prevention apparatus.
According to this aspect, since the determination is performed in consideration of the effectiveness, the determination accuracy can be improved.
For example, the determination unit selects the received abnormal state level data based on the validity, and determines the selected abnormal state level data. The determination may be made based on the detection result of the abnormal state level of the abnormality detection unit. In particular, it is preferable to select data having high effectiveness from the received abnormal state level data and determine the abnormal state data.
As a more specific configuration, for example, the following configuration can be adopted.

Preferably, the abnormal state level data received from the other crime prevention device includes position data of the device, and includes a position detection unit that detects a position on the earth, and the determination unit includes the position detection unit. It includes a calculation unit that calculates a distance from the detected position and the received position data of the other security device to the other security device, and the effectiveness may be determined based on the distance. For example, the closer the distance, the higher the abnormal state level data may be considered. In addition, for example, when the determination is performed, weighting is performed on the received abnormal state level data in order to select the highly effective data, and in the weighting, the closer the distance is, the heavier it is. Good.
According to this aspect, the accuracy of the determination result can be improved by increasing the weighting of the data when the distance is short. This is because natural abnormalities such as earthquakes or strong winds, and natural objects such as sound pressure of large fireworks are detected in contrast to the fact that an artificially abnormal state directly given by a person for theft etc. is detected by only one moving object. Anomalous situations mediated by structures such as vibrations on bridges or vibrations on bridges are detected almost simultaneously by all nearby detectors. This is because the number of false detections can be reduced.
Preferably, mounted on a mobile body, the communication unit is capable of receiving abnormal state level data by wireless communication, and the determination unit is based on the signal strength of the abnormal state level data by wireless communication. It is good to decide. For example, when performing the determination, the signal strength of the abnormal state level data by the wireless communication may be used to select the highly effective data.
According to this aspect, since the signal strength of the radio signal is used for the determination of the reliability and the effectiveness, for example, even in an underground parking lot where the GPS does not reach, it is possible to improve the detection accuracy of the abnormal state and perform an appropriate alarm. it can.

Preferably, the communication unit is capable of receiving a plurality of abnormal state level data, and the determination unit is configured such that each level of the abnormal state level data is a level determined as the artificial abnormal state. It has a data number storage unit that records the number of abnormal state level data, and when the number of abnormal state level data recorded in the data number storage unit is greater than a predetermined number, it is not an artificial abnormal state You may make it determine.
According to this aspect, it is possible to improve the detection accuracy of the abnormal state by taking into account the number of peripheral abnormal state level data.

Preferably, the communication unit can receive a plurality of the abnormal state level data, and includes a data level storage unit that records each level of the abnormal state level data, and the determination unit includes the data level storage unit It is also possible to determine whether or not the artificial abnormal state is based on the statistical value of each abnormal state level data recorded in the above. As a statistical value in this case, for example, an average, a mode value (mode), a median value (median), a variance, a standard deviation, or the like can be used. And based on the statistical value, for example, it may be based on the difference between each abnormal state level data and the statistical value. For example, when each abnormal state level data is not within the range of the statistical value and a predetermined allowable value,
According to this aspect, if the detected abnormal state level data is significantly different from the statistical value of the abnormal state level data received from the surrounding area, it is determined that the abnormal state is detected as an artificial abnormality. Accuracy can be improved.

Preferably, the data level storage unit stores abnormal state level data in a past predetermined position, and the determination unit uses the abnormal state level data in the past predetermined position as the abnormal state level. You may make it determine whether it is in a state.
According to this aspect, when there is no other detection body (security device) in the vicinity, determination is made using past data at the same time at the same position of the self-security device, so the same at the same time at the same position. When a serious event occurs, an abnormal state can be detected with high accuracy.

Preferably, it has a time measuring unit for measuring time, the abnormal state level data received from the other security device includes time data at which the abnormal state level data is detected, and the determination unit has a predetermined time range. It may be determined whether or not it is the artificial abnormal state based on the abnormal state level data detected in step S3 and the received abnormal state level data.
The predetermined time range is, for example, a time range when a security alarm is required, and generally may be approximately the same time. For example, in the case of a crime prevention device for a moving body such as a vehicle, the time range in which an alarm is required for the crime prevention is within a few seconds to ten or more seconds after the abnormal state level of the own device reaches a level requiring an alarm. . If the time data of the received abnormal state level data is included in the range, it can be determined that the detected abnormal state level data is not an artificial abnormal state.
According to this aspect, the abnormal state detection accuracy can be improved by comparing the abnormal state data within a predetermined time range.

Preferably, the determination unit includes a comparison unit that compares the abnormal state level detection result of the abnormality detection unit with the received abnormal state level data, and the difference between the comparison unit and the predetermined value for determination You may make it determine whether it is an artificial abnormal state by the magnitude.
According to this aspect, it is possible to improve the accuracy of the determination result by determining that the difference between the received level and the detected level is artificial when the difference is greater than or equal to a predetermined value.

Preferably, the determination unit may change a predetermined value for determining the magnitude of the difference compared by the comparison unit according to the distance.
According to this aspect, the accuracy of the determination result can be improved by increasing or decreasing the predetermined value for determination for determining whether it is artificial or not according to the distance from the detected position of the received data.

Preferably, when the abnormality detection unit detects an abnormal state level, the determination unit requests the other crime prevention device to transmit detected abnormal state level data via the communication unit. You may do it.
According to this aspect, when an abnormal state is detected, data is requested from the surroundings to make a determination, so that it is possible to reduce the running cost without performing wasteful power or calculation in normal times.

Preferably, the determination unit, when the high-efficiency data cannot be selected from the abnormal state level data received from the other security device based on the transmission request, further another security device against the other security device. May be requested to transmit the detected abnormal state level data, and may be requested to relay the abnormal state level data.
According to this aspect, when the high-efficiency data cannot be selected in the abnormal state level data received based on the transmission request, the relay device is requested to relay to other crime prevention devices, so the data with high reliability and high-efficiency is insufficient. Can be reduced, and the detection accuracy of the abnormal state can be improved. Moreover, you may determine the proximity to the security device from which the received data was detected based on the number of relayed security devices. The above weighting may be performed based on this number.

Preferably, the determination unit detects, as the abnormal state level, a multi-directional acceleration including a value of an object presence level detected by a sensor capable of detecting the presence or approach of the object or a change level thereof, an impact or a vibration. You may make it use at least 1 value from the value of the acceleration level detected by the sensor which can detect, the level of the inclination detected by the sensor which can detect inclination, or the value of the change.
According to this aspect, the determination is made by comparing the received data with the value including at least one of the proximity sensor, the impact sensor, the tilt sensor, and the like, so that the abnormal state can be detected with high accuracy.

Further, the determination unit is configured to determine that the abnormal state level is the artificial abnormal state when the abnormal state level detected by the abnormality detection unit exceeds a predetermined reference level, If the difference between the value of the abnormal state level detected by the abnormality detection unit and the value of the abnormal state level data received from the other security device is equal to or greater than a predetermined value, the abnormality detected by the abnormality detection unit Even if the state level does not exceed a predetermined reference level, the artificial abnormal state may be determined.
In this way, it is possible not only to improve accuracy by reducing the problem of excessive false alarms due to fireworks and natural phenomena, but also to reduce the problem of insufficient alarms that do not sound when alarms should be sounded. That is, according to this aspect, it is possible to reduce the problem that an alarm is not issued when an alarm should actually be issued although the predetermined reference level is not exceeded.

In order to solve the above-mentioned problem, in the security system according to the embodiment of the present invention, the security system is configured by at least two security devices installed in different places, and each security device detects an abnormal state level. And an abnormal state level data detected from another security device, and a communication unit capable of transmitting the abnormal state level data detected by the own security device to the other security device. A determination unit for determining whether or not at least one crime prevention device is an artificial abnormal state from the detection result of the abnormal state level of the abnormality detection unit and the received abnormal state level data; and the determination result is artificial And an alarm unit that suppresses an alarm when it is not an abnormal state.
According to this aspect, the communication unit of each device can transmit the detection result, and each device in the security system has the same configuration as that of the above-described security device. This can reduce false detection of abnormal situations in each device in the security system.

  The functions of the above-described crime prevention device may be configured as a program for realizing by a computer. For example, when the configuration of the security device described above is adopted, “the abnormality detection step for detecting the abnormal state level, the communication step capable of receiving the abnormal state level data detected from other security devices, and the abnormality detection” A determination step for determining whether or not there is an artificial abnormal state based on the detection result of the abnormal state level of the unit and the received abnormal state level data, and an alarm step for suppressing an alarm if the determination result is not an artificial abnormal state It can be set as a program characterized by comprising "." Similarly, with respect to the configuration of the other security devices described above, the program can be configured with a configuration in which the portion described as “˜part” is replaced with “˜step”.

  Moreover, each crime prevention device of each embodiment described above has a particularly remarkable effect when mounted on a moving body such as a vehicle. In addition, as a device mounted on a moving body such as a vehicle, for example, a navigation device, a vehicle antitheft device, a radar detector, or the like is provided with the function of the crime prevention device of this embodiment, and a power source or the like And space saving may be achieved. In addition, the security device of this embodiment may be provided in, for example, a remote control device for operating the above-described device, a garage for storing a moving body, etc., and at that time, all the configurations are provided at all locations. There is no need to install a device, and if a device including a determination unit is installed in one place, the remaining devices may include at least an abnormality detection unit and a communication unit.

  According to the present invention, it is possible to reduce false detections, false alarms, and false notifications of abnormal situations.

It is a block diagram which shows schematic structure of 1st Embodiment of the crime prevention system of this invention. It is a block diagram which shows schematic structure of 2nd Embodiment of the crime prevention system of this invention. It is a flowchart which shows an example of the processing flow of the 1st detection body of FIG. It is a block diagram which shows schematic structure of 3rd Embodiment of the crime prevention system of this invention. It is a figure which shows an example of the processing flow in the crime prevention system of FIG. It is a figure which shows an example of the hardware constitutions in the 1st detection body 1 of FIG.1, FIG.2, FIG.4.

<First Embodiment>
The crime prevention system according to the first embodiment of the present invention shown in FIG. 1 includes a first detector 1, a communication network 800, and a second detector 2. The second detection body 2 is desirably located adjacent to or in the vicinity of the first detection body 1. However, even when the second detection body 2 is several tens of meters or several hundred meters away, the detection error is reduced depending on conditions. Therefore, useful detection data can be obtained.

  The first detection body 1 of the present embodiment is the entire structure or moving body that includes the security device of the present invention. The structure is a structure such as a house, and the moving body is a structure that moves with a person such as an automobile or a leisure boat. Therefore, the first detection body 1 may be the first detection body 1 by providing the abnormality detection unit 10, the determination unit 30, the communication unit 60, and the alarm unit 70 in a fixed structure such as a house, It is good also as the 1st detection body 1 by providing the abnormality detection part 10, the determination part 30, the communication part 60, and the alarm part 70 in the movable structure. The second detection body is the entire structure or moving body including at least the abnormality detection unit 210 and the communication unit 260 in the security device of the present invention, but may have the same configuration as the first detection body 1.

  The abnormality detection unit 10 includes an acceleration sensor 12 as a sensor for detecting an abnormal shock or abnormal vibration as an acceleration when a thief or the like breaks a window or the like and enters a house or a vehicle. The acceleration sensor 12 can generally detect gravity, vibration and movement, and impact, and further can detect gravity, so that it can detect the vertical and horizontal directions and inclination of the casing. The acceleration sensor 12 includes a number of methods such as a piezoelectric method using a piezoelectric element, a method of measuring capacitance, a method of measuring with a strain gauge, and an optical fiber method of measuring an optical path difference between optical fibers with an interferometer. There are things. Further, miniaturized semiconductor acceleration sensors include methods such as a piezoresistive type, a capacitance type, and a heat distribution detection type. In addition, if the sensor can detect an abnormality, it replaces the acceleration sensor 12 with another sensor, for example, a sound pressure sensor (microphone), a contact sound to the vehicle body, a breaking sound of the glass, or an atmospheric pressure when the door is opened The change value may be detected.

  The determination unit 30 is, for example, a semiconductor element including a microprocessor, a CPU, or a storage RAM for performing calculations and processes. The determination unit 30 includes a calculation unit 40 that performs various calculations and processes, and a storage unit 50 that stores programs and data input from the outside. The calculation unit 40 further includes a value indicating the abnormal state detected by the abnormality detection unit 10 (acceleration value in the present embodiment) and a value indicating the abnormal state input from an external device (acceleration value). A comparison unit 42 for comparison is provided. The storage unit 50 includes a data level storage unit 52 that stores a value indicating an abnormal state detected by the own device as described above and a value indicating an abnormal state input from an external device. Further, as another value indicating abnormality, for example, a value using a sound pressure sensor or the like instead of the above-described acceleration, for example, a sound pressure value may be compared.

  The communication unit 60 receives at least data having a value indicating an abnormal state transmitted from the second detector 2 and transmits the data to the data level storage unit 52. In addition, when the second detection body 2 has the determination unit 30 and the like in the same manner as the first detection body 1, the communication unit 60 receives data of a value indicating the abnormal state detected by the abnormality detection unit 10. You may make it transmit. Further, when centralized security management is performed by providing a safety monitoring center or the like, data having a value indicating an abnormal state may be transmitted to the safety monitoring center. In addition, when wireless connection is possible with the user's child device or mobile phone of the first detection body 1, data of a value indicating an abnormal state may be transmitted to the child device or mobile phone.

  As a communication method, when the first detector 1 is a moving object, it is desirable to be a short-range wireless method, but when the first detector 1 is fixed like a building, Not only the wireless system but also a system that communicates with an electric signal using electric wires such as parallel lines and coaxial cables, or a system that communicates with an optical signal using an optical fiber may be used. As a short-range wireless communication method, various methods such as weak wireless, specific low-power wireless, various wireless LANs, and Bluetooth (registered trademark) can be used. Can be used. The wired system is not limited to the original specification, and various systems compatible with the wired LAN can be used.

  For example, the alarm unit 70 is provided with a sounding body such as a speaker or a buzzer, and outputs an alarm such as a buzzer sound, a horn sound, a siren sound, or outputs an abnormal sound to output an abnormality. Can be notified. In addition, the alarm unit 70 is provided with an optical alarm device such as a flashlight (LED) or a red light, etc., on an optical interface as necessary, and outputs an abnormality indicating that an abnormality is detected. May be notified.

  When at least one of the first detection body 1 or the second detection body 2 is a mobile body as described above, the communication network 800 is a weak radio wave, a specific low power, various wireless LAN compatible systems, a mobile phone line utilization system. It is a wireless communication line or network that uses the above. When both the first detection body 1 and the second detection body 2 are fixed like a building, a communication line or a network that is connected in accordance with an original specification or a wired LAN using various methods as described above It may be.

  The second detection body 2 is provided with an abnormality detection unit 210 and a communication unit 260 similar to those of the first detection body 1. The abnormality detection unit 210 further includes an acceleration sensor 212. The internal configuration of the abnormality detection unit 210 is the same as that of the abnormality detection unit 1 of the first detection body 1. The internal configuration of the communication unit 260 is the same as that of the communication unit 60 of the first detection body 1, but the abnormality detection result is transmitted from here to the communication unit 60 of the first detection body 1.

  As an operation of the first detection body 1 of the present embodiment, first, when an abnormal state is detected by the abnormality detection unit 10, the determination unit 30 determines whether or not the detection level of the abnormal state is a level for issuing an alarm. do. When it is the level which issues an alarm, the determination part 30 inquires the detection data of an abnormal condition toward the 2nd detection body 2 arrange | positioned next through the communication part 60 next. If the detection data of the abnormal state is received from the second detection body 2, the determination unit 30 compares the level of the detection data of the received abnormal state with the detection level detected by the abnormality detection unit 10, and is in the same range. It is determined whether it shows the tendency to change similarly. When the levels of both data are in the same range or show a tendency to change similarly, the determination unit 30 determines that the abnormal state detected by the abnormality detection unit 10 is not artificial and suppresses the alarm. Conversely, if the levels of both data are not in the same range or do not show a similar tendency, the determination unit 30 determines that the abnormal state detected by the abnormality detection unit 10 is artificial and alerts An alarm is output from the unit 70.

  The case where the level of the received detection data of the abnormal state and the detection level detected by the abnormality detection unit 10 are in the same range is, for example, substantially the same detection by measurement devices provided in two different places (neighborhood) This is a case where an abnormality is detected in the level range. If two measuring devices placed in the vicinity have the same measurement content, reference, scale, accuracy, calibration value, etc., and if an abnormality such as an earthquake is detected, remove individual differences between the devices. Abnormalities are detected within a range of substantially the same detection level. Further, when the two measuring devices can measure time-sequentially, it is detected that they tend to change in substantially the same manner. An abnormal situation in such a case is an earthquake or the like, and is not an abnormality caused by an artificial vibration of a criminal or the like.

As described above, in the security system of the present embodiment, the received data and the detected data are compared in the first detection body 1 that is a security device, and the received data from the second detection body 2 and the detection data of the own device are within the same range. It is determined whether there is a tendency to change as well. And when it exists in the same range or shows the tendency to change similarly, the 1st detection body 1 determines with the abnormal state level data detected with the self-protection apparatus not being artificial. Thereby, the crime prevention system and the crime prevention device (first detection body 1) of the present embodiment can reduce erroneous detection of abnormal situations.
The crime prevention system of the present embodiment is not limited to this, and may be configured by at least two crime prevention devices installed in different places. The installation position of each security device is preferably as close as possible. Each security device includes an abnormality detection unit 10 that detects an abnormal state level, a communication unit 60 that can receive at least the abnormal state level data detected from the second detection body 2 that is another security device, A determination unit 30 that determines whether or not the abnormal state level detection result of the detection unit 10 and the received abnormal state level data are an artificial abnormal state, and if the determination result is not an artificial abnormal state, an alarm is generated. It is good to provide the alarm part 70 to suppress.

  Further, for example, a step (step) of detecting an abnormal state level with the first detection body 1 and the second detection body 2, and abnormal state level data detected by the self-protection device in the second detection body 2 are used as the first detection body. 1, a step of receiving abnormal state level data detected from the second detector 2 in the first detector 1, a detection result of the abnormal state level and the received abnormality in the first detector 1 A program, such as a ROM, that includes a step of determining whether or not an artificial abnormal state is detected from the state level data and a step of suppressing an alarm when the determination result is not an artificial abnormal state in the first detector 1 The process is stored in the element, and the control of each of the above steps may be performed by executing a program stored in the storage element by an arithmetic element such as a microcomputer or a CPU.

  In addition, when both the first detector 1 and the second detector 2 in FIG. 1 are mobile bodies, the communication network 800 may be a wireless communication line or network, and the first radio wave within the reach of the first radio wave. The detection body 1 and the second detection body 2 are connected. Alternatively, the first detector 1 and the second detector 2 are connected to each other via a base station or a repeater depending on the wireless communication method and the intensity of the radio wave. As described above, the wireless communication method may be selected according to the purpose and application from various methods such as weak radio waves, specific low power, various wireless LAN compatible methods, mobile phone line usage methods, and the like.

  For example, the first detection body 1 and the second detection body 2 are installed in different vehicles, and the reception data from the second detection body 2 parked in the vicinity of the first detection body 1 is the same as the detection data of the own device. It is determined whether or not the abnormal state level data detected by the self-protection device is artificial by determining whether it is within a certain range or shows a tendency to change similarly. When acquiring data from other mobile objects parked in the vicinity, for example, since the reach of wireless radio waves is limited, adjusting the output so that the radio wave reach of the second detector 2 is close Good. Moreover, the parking position of the 1st detection body 1 may change with dates, and the parking position of the 2nd detection body 2 may also change with dates. In addition, the second detector 2 itself is not necessarily the same vehicle, and may be replaced with a different vehicle.

  As described above, each security device in the security system according to the present embodiment includes the abnormality detection unit 10 that detects the abnormal state level as described above, and the communication unit that can receive the abnormal state level data detected from other security devices. 60, the detection result of the abnormal state level of the abnormality detection unit 10 and the received abnormal state level data are compared, and the received data from the surrounding devices and the detection data of the own device are in the same range or change similarly. It is not artificial because it includes a determination unit 30 that determines whether or not an artificial abnormal state is present depending on a tendency, and an alarm unit 70 that suppresses an alarm when the determination result is not an artificial abnormal state. It is possible to reduce false detection of abnormal situations.

In addition, the determination unit 30 of each security device determines, for example, that the comparison unit 42 compares the abnormal state level detection result of the abnormality detection unit 10 with the received abnormal state level data and compares the difference with the comparison unit 42. It may be determined whether or not there is an artificial abnormal state based on the magnitude of the predetermined value. In this case, when the difference between the received level and the detected level is equal to or greater than a predetermined value, it is preferable to determine that the image is artificial. In this way, the accuracy of the determination result can be improved.

  In addition, the determination unit 30 of each security device causes the comparison unit 42 to change a predetermined value for determination for determining whether it is artificial or not according to the distance from the detected position of the received data. It may be. This distance may be stored in advance in the storage unit 50, for example, and the distance may be determined. In this way, the accuracy of the determination result can be improved.

  In addition, the data level storage unit 52 of each security device stores abnormal state level data at a past predetermined position, and the determination unit 30 uses the abnormal state level data at the past predetermined position as an abnormal state level to cause an artificial abnormality. You may make it determine whether it is in a state. In this way, even when there is no other detection body (security device) in the vicinity, the abnormal state can be detected with high accuracy. This is because, for example, when a similar event occurs at the same time at the same position such as a train passing, it can be determined using past data at the same time at the same position of the self-defense device. is there. In addition, the predetermined position here is a position where the moving body stops for a long time, such as a parking lot position, for example.

  In general, vibration or shock detection type security devices installed in contact with the glass of houses and vehicles are difficult to increase the detection sensitivity in order to reduce malfunctions caused by vibrations caused by storms or earthquakes. there were. However, when comparing data with nearby detectors and indicating a tendency to change within the same range or similarly, determine that the abnormal state level data detected by the self-protection device is not artificial. Thus, malfunction can be avoided even if the detection sensitivity is increased.

Second Embodiment
FIG. 2 is a block diagram showing a schematic configuration of the second embodiment of the crime prevention system of the present invention. The crime prevention system according to the second embodiment mainly differs from the first embodiment as follows.
(1) The number of other detection bodies from which the first detection body 1 receives detection data has increased to two.
(2) The detected object ID, detected time, and number of data (number of detected objects) of the received detection data are stored.
(3) The number of sensors in the abnormality detection unit 10 has increased to three.
(4) Each detector has a function of detecting the position on the earth.
(5) The first detection body calculates the distance to each other detection body from the position information of the self detection body and the position information of the other detection body.
(6) The first detection body weights the reception data from each detection body according to the distance to the detection body, and gives priority to the reception data with a short distance.
Hereinafter, the above-described differences will be mainly described, and overlapping description of the same configuration as that of the first embodiment will be omitted.

  In addition to the acceleration sensor 12 described in the first embodiment, the abnormality detection unit 10 in the first detection body 1 is provided with an approach sensor 14 and an inclination sensor 16. The proximity sensor 14 detects whether a nearby object approaches or leaves. The tilt sensor 16 detects the tilt of the device with respect to the vertical direction of gravity. As for the tilt sensor 16, as described above, when the acceleration sensor 12 can also measure the tilt, the acceleration sensor 12 may also be used. The proximity sensor 14 is, for example, a Doppler sensor or an infrared sensor that can detect a distance or speed from an object that approaches or leaves using microwaves or laser light, and may be referred to as a proximity sensor. is there. Further, as described above, sound pressure may be measured instead of acceleration. Each sensor will be described later with reference to FIG.

  The calculation unit 40 of the determination unit 30 in the first detection body 1 includes a distance for calculating a distance based on position data detected by a position detection unit 80 described later and position data associated with the received abnormal state level data. A calculation unit 44 is provided. The received abnormal state level data includes, in addition to the above-described position data, data of an identification (ID) code for individually identifying each detection object and data of the time when the data was acquired. To do. Any identification code can be used as long as it can be individually identified. The position data and time data can be obtained from, for example, a received signal of a global positioning system (GPS) having functions of a position detector 80 and a timer 90 described later.

  The data number storage unit 54 stores the number of received detection data. The reliability of data is increased in the case of two data than in the case of one data. Further, it is possible to grasp the number of detection bodies that can detect an abnormal state existing in the vicinity.

  The data detection time storage unit 56 stores time data measured by the time measuring unit 90 in association with the abnormal state level data when an abnormality is detected by the abnormality detection unit 10. Further, time data associated with the abnormal state level data received from the second detector 2 or the third detector 3 is stored in association with each received abnormal state level data.

  The data detector ID storage unit 58 stores identification (ID) code data for individually identifying the first detector 1 used during communication in association with the abnormal state level data detected by the abnormality detector 10. To do. In addition, the identification (ID) code data for individually recognizing the second detection body 2 and the third detection body 3 associated with the abnormal state level data received from the second detection body 2 and the third detection body 3, It is stored in association with each received abnormal state level data.

  The position detector 80 receives signals from several satellites on the satellite orbit and detects the current position by three-dimensional positioning. For example, in the Global Positioning System (GPS), the receiver obtains time data and satellite orbit data from signals from satellites equipped with four atomic clocks, and receives from transmission while calibrating the clock inside the receiver. The distance from each satellite is calculated by calculating the time difference until radio wave propagation and the propagation speed of radio waves. If the distance from the three satellites can be obtained, a point in space can be determined.

  The timer 90 measures the time when the abnormality is detected. A quartz clock or the like can be used, but if a GPS receiver is installed, use the time because a more accurate time based on the atomic clock is obtained for position measurement inside the GPS receiver. May be.

  The third detection body 3 is a detection body having at least the same configuration as the abnormality detection unit 210 and the communication unit 260 of the second detection body 2, and further includes the configuration of the determination unit 30 and the like similar to the first detection body 1. It is desirable that

  FIG. 3 is a flowchart showing an example of a processing flow of the first detection body of FIG. As an operation of the first detection body 1 of the present embodiment, first, the position is detected by the position detection unit 80 (S51), and the position information is sent to another detection body (S52), and other detections are performed. The positional information is received from the body (the second detection body 2 and the third detection body 3) (S53).

  Next, in the distance calculation unit 44, each of the other detection bodies (the second detection body 2 and the third detection body 3) is determined from the position information of the self detection body and the position information of the second detection body 2 and the third detection body 3. ) Is calculated (S54). The determination unit 30 prioritizes the shorter distance and selects another detection body to be used for determining the abnormality. Based on this distance, the determination unit 30 determines the effectiveness of each abnormal state level data received from another detection body used for abnormality determination, and selects each data.

The effectiveness indicates how much the data can be used (effectively used) when the data is applied to the method of the present invention. For example, based on an empirical rule that objects that are close to each other based on distance are more likely to encounter the same event, and that detection data for devices that encounter the same event show similar ranges of values and trends, so distance Judgment is made so that the usefulness of the data from a device close to is high.
However, not limited to this, the usefulness may indicate how much the data is reliable or reliable (indicating the trustworthiness). For example, the usefulness may be determined from past performance data or experience values. . In addition, for example, the data from the security devices and sensors installed by the user has been confirmed by their own operation and performance, so that the reliability (usefulness) is determined to be high. Good. Whether or not the device is installed by itself, for example, an identification code (ID) is assigned to each device, and an ID corresponding to the device installed by itself is input from an input unit such as a switch and stored. Each device adds this ID to the abnormal state level data and transmits / receives it. When the stored ID matches the received ID, the received abnormal state level data is transmitted from the one installed by itself. What is necessary is just to specify that it is a thing. In addition, the reliability (usefulness) may be determined by considering that the reliability changes not only in the spatial distance but also in the time interval and the time condition. For example, crime prevention devices and sensors arranged at the same position at the same time every day are considered to be a resident vehicle or the like living in the vicinity, and the reliability of the data may be high. Similarly, security devices and sensors placed at the same position on the same time every day, the same day of the week, and every 5/10 days of the month (days with 5 or days that are multiples of 10) are vehicles for regular work. The reliability of the data may be high. In addition, when the communication method is a wireless method, the received data with a high wireless signal strength can be considered to be close to the distance, so the signal strength is detected and the reliability is increased according to this signal strength. Also good. For example, the signal strength may be detected by the communication unit 60. By using wireless signal strength in this way, for example, even in situations where position detection is not possible, such as underground parking lots where GPS does not reach, it is possible to select appropriate received data with high reliability by wireless signal strength, False alarms can be reduced and alarm accuracy can be increased.

  In this embodiment, the determination is made based on the distance to the other party. However, the determination can be made based on the number of other parties that can communicate and the reliability of the data. In addition to the spatial distance, the reliability varies depending on the time interval and time conditions. For example, in the middle of the night when the surroundings are quiet, the noise floor level also decreases, so the reliability of the data increases, but the accuracy of the method of the present invention can also be improved, so the feasibility increases and the effectiveness increases. . Conversely, for example, in places where traffic volume increases during the day, such as on weekends, the level of the noise floor increases, the reliability of the data and the accuracy of the method of the present invention decrease, the feasibility decreases, and the effectiveness Becomes lower.

  Then, the determination unit 30 selects the received abnormal state level data based on the validity, and performs determination based on the selected abnormal state level data and the detection result of the abnormal state level of the abnormality detection unit 10.

  The determination unit 30 increases the effectiveness and the selectability of the abnormal state level data of the detection objects that are close to each other. On the other hand, for the abnormal state level data of the detection object that is far away, the determination unit 30 reduces the effectiveness and also reduces the selectability. For example, the reciprocal of the distance value may be used as the effectiveness value. If the distance is more than a certain distance, it may be set to an effectiveness (eg, 0) that is not used as a comparison target (S55).

  Thereafter, the abnormality detection unit 10 detects an abnormal state (S56). If an abnormal state is detected (S56: YES), the determination unit 30 acquires a detection level of the abnormal state (S57), and the detection level is a level for issuing an alarm (for example, a level exceeding the alarm reference value). It is determined whether or not (S58). When the abnormal state is not detected (S56: NO), the determination unit 30 returns to the first step S51 and detects the position.

  When it is the level which issues a warning (S58: YES), the determination part 30 detects whether the abnormal state level data of the same time from another detection body has not been received yet (S59). When it is not a level for issuing an alarm (for example, a level equal to or lower than the alarm reference value) (S58: NO), the determination unit 30 returns to the first step S51 to detect the position.

  When abnormal state level data at approximately the same time is not received from the other detection bodies (S59: YES), the determination unit 30 receives the other detection bodies (the second detection body 2 and the third detection body 3 via the communication unit 60). An inquiry for detection data of an abnormal state is transmitted to the detection body 3) (S60). As a result, when the detection data of the abnormal state of the other detection bodies (the second detection body 2 and the third detection body 3) is received via the communication unit 60 (S61), the determination unit 30 detects the received abnormal state. The data level and the detection level detected by the abnormality detection unit 10 are close to each abnormal state level data received from other detection bodies used for determining abnormality based on the detected distance. A weighting process for preferentially increasing the weight is performed. The determination unit 30 compares the level of the detected abnormal state data received and weighted with the detection level detected by the abnormality detection unit 10, and the comparison unit 42 compares the detected level and the tendency to change similarly. Determine whether to show.

  Moreover, the determination part 30 is data with high effectiveness (for example, effectiveness is higher than a reference value) in the abnormal condition level data received from other security devices (the 2nd detection body 2, the 3rd detection body 3) based on the transmission request. When the data) cannot be selected, for example, the abnormal state level data detected for another crime prevention device is transmitted to the other crime prevention devices (second detection body 2, third detection body 3). Further, the abnormal state level data received based on the transmission request is requested to be relayed. In this case, for example, when the highly effective data cannot be selected from the abnormal state level data received by the first transmission request, the determination unit 30 acquires the abnormal state level data by relay from another distant crime prevention device. Therefore, it is possible to reduce the situation in which highly effective data cannot be selected, and to improve the accuracy of detecting an abnormal state.

When the abnormal state level data at substantially the same time from another detection body has already been received (S59: NO), the determination unit 30 determines the level of the abnormal state detection data that has already been received and the abnormality detection unit 10. The weighting process is performed in step S62 on the detection level detected in step S62, and the comparison unit 42 compares the weighted level of the abnormal state detection data with the detection level detected by the abnormality detection unit 10. , Whether it is in the same range or shows a tendency to change similarly.
Note that, for example, in the case of a security device for a moving body such as a vehicle, the substantially same time means that the time range for which a security alarm is required is after the abnormal state level of the device reaches a level that requires a warning. It should be within a few seconds to a few seconds before and after.

  When the levels of both data are in the same range or show a tendency to change similarly (S63: YES), the determination unit 30 determines that the abnormal state detected by the abnormality detection unit 10 is not artificial, The alarm is suppressed (S64). Conversely, when the levels of both data are not in the same range or do not show a tendency to change in the same manner (S63: NO), the determination unit 30 detects that the abnormal state detected by the abnormality detection unit 10 is artificial. And the alarm operation from the alarm unit 70 is performed (S65).

  As described above, the security device 1 in the security system of the present embodiment includes the position data of the devices 2 and 3 in the abnormal state level data received from the other security devices 2 and 3, and detects the position on the earth. The determination unit 30 calculates the distance to the other security devices 2 and 3 from the position detected by the position detection unit 80 and the received position data of the other security devices 2 and 3. Since the weight of the abnormal state level data including the calculation unit 40 when determining whether or not it is an artificial abnormal state is increased as the distance is closer, the accuracy of the determination result can be improved.

  Further, as described above, the communication unit 60 in the crime prevention device 1 of the present embodiment can receive abnormal state level data including a plurality of position data, and the determination unit 30 is determined to be surrounding from the position data. Each level of abnormal state level data has a data number storage unit 54 that records the number of each abnormal state level data that is a level determined to be an artificial abnormal state, and the abnormality recorded in the data number storage unit 54 When the number of state level data is greater than the predetermined number, it is determined as an artificial abnormal state. Therefore, peripheral abnormal state data that can be determined to be an artificial abnormality out of abnormal state level data received from the surroundings. By increasing the number and determining that it is not artificial, the detection accuracy of the abnormal state can be improved.

  Moreover, the crime prevention apparatus 1 in the crime prevention system of this embodiment has the time measuring part 90 which time-measures as mentioned above, In the abnormal condition level data received from the other crime prevention apparatuses (detection bodies) 2 and 3, Including the time data at which the abnormal state level data is detected, the determination unit 30 determines whether or not there is an artificial abnormal state from the abnormal state level data detected in the predetermined time range and the received abnormal state level data. As a result, the detection accuracy of the abnormal state can be improved.

  Moreover, the determination part 30 in the crime prevention apparatus 1 of this embodiment is detected with respect to the other crime prevention apparatuses 2 and 3 via the communication part 60, when the abnormality detection part 10 detects an abnormal state level as mentioned above. Since the abnormal state level data including the position data is requested to be transmitted, it is possible to reduce the running cost without performing unnecessary power and calculation in the normal state.

  In addition, the determination unit 30 in the crime prevention device 1 of the present embodiment, as described above, as the abnormal state level, the value of the presence level of the object detected by the sensor 14 capable of detecting the presence or approach of the object or the change level thereof, At least one of an acceleration level value detected by the sensor 12 capable of detecting multi-directional acceleration including shock or vibration, an inclination level detected by the sensor 16 capable of detecting inclination, or a change value thereof. Since the value is used for comparison with the received data, the abnormal state can be detected with high accuracy.

  Moreover, the crime prevention system of this embodiment is comprised by the at least 2 crime prevention apparatus 1, 2, and 3 installed in a different place as mentioned above. Each of the security devices 1, 2, and 3 is capable of receiving an abnormality detection unit 10 that detects an abnormal state level, and abnormal state level data that includes position data detected from other security devices, and is detected by the own security device. And a communication unit 60 capable of transmitting abnormal state level data including the position data transmitted to other security devices. At least one crime prevention device among the crime prevention devices 1, 2, and 3 is an artificial abnormality from the abnormal state level data determined from the detection result of the abnormal state level of the abnormality detection unit 10 and the received position data. It has the determination part 30 which determines whether it is in a state, and the alarm part 70 which suppresses generation | occurrence | production of an alarm, when a determination result is not an artificial abnormal state. Thereby, since each crime prevention apparatus 1, 2, and 3 mutually transmits / receives a detection result and compares with a self-detection result, it can improve the precision of a determination result.

  Further, the security system determination method of the present embodiment is a security system determination method constituted by at least two security devices 1, 2, and 3 installed in different places as described above, and each security device. The process of detecting an abnormal state level at 1, 2, and 3 and in each of the security devices 1, 2, and 3, the abnormal state level data including the position data detected by the self-security device is transmitted to the other security devices. In each security device for determining the abnormal state level with the process and the self-protection device, receiving the abnormal state level data including the position data detected from the other security device, and determining the abnormal state level with the self-security device In each security device, a process for determining whether or not there is an artificial abnormal state from the detection result of the abnormal state level and the abnormal state level data determined to be the periphery from the received position data If, in each security device determines an abnormal condition level by its own security device, when the determination result is not artificial abnormal state, and a step of inhibiting the alarm. Thereby, since each crime prevention apparatus 1, 2, and 3 mutually transmits / receives a detection result and compares with a self-detection result, it can improve the precision of a determination result.

  Further, the security system determination program of the present embodiment is a security system determination program composed of at least two security devices 1, 2, and 3 installed in different places as described above, and each security device. A program for detecting an abnormal state level in 1, 2, and 3 and in each of the security devices 1, 2, and 3, abnormal state level data including position data detected by the own security device is transmitted to the other security devices. Program for receiving abnormal state level data including position data detected from other security devices, and for determining the abnormal state level in each security device. In each crime prevention device, the abnormal state level detection result and the abnormal state level data determined to be surrounding from the received position data A program determining whether abnormalities condition for, each security device determines an abnormal condition level by its own security device, when the determination result is not artificial abnormal state, and a suppressing program an alarm. Thereby, since each crime prevention apparatus 1, 2, and 3 mutually transmits / receives a detection result and compares with a self-detection result, it can improve the precision of a determination result.

As described above, in this embodiment, data is compared with a plurality of nearby detectors, and selection based on distance is also performed. Therefore, abnormal state level data detected by the self-protection device more accurately than in the first embodiment. Can be determined to be not artificial, and malfunction can be avoided even if the detection sensitivity is increased.
The determination unit 30 is configured to determine that the abnormal state level is the artificial abnormal state when the abnormal state level detected by the abnormality detection unit 10 exceeds a predetermined reference level. When the difference between the value of the abnormal state level detected at 10 and the value of the abnormal state level data received from the other security device is equal to or greater than a predetermined value, the abnormal state level detected by the abnormality detection unit 10 However, even if the predetermined reference level is not exceeded, it may be determined that the state is an artificial abnormality. For example, in the process of S58, when it is not a level for issuing an alarm (for example, a level equal to or lower than the alarm reference value) (S58: NO), the determination unit 30 does not return to the first step S51 to detect the position, Subsequently, the same processing as the processing of S59 to S62 is performed, and then the difference between the value of the abnormal state level detected by the abnormality detecting unit 10 and the value of the abnormal state level data received from the other security device is a predetermined value. It may be determined whether or not the value is greater than or equal to the value. If the value is greater than or equal to the predetermined value, the process proceeds to S65 to issue an alarm, and if the value is less than the predetermined value, the process proceeds to S64 and the alarm may be stopped. In addition, what is necessary is just to determine an appropriate value for this predetermined value by causing an assumed situation. In this case, the predetermined reference level is not exceeded in the determination of S58, but the surrounding situation exceeds the reference level to be alerted (the abnormal state level of the self-protection device and the abnormal state level data of the other security device). If there is a large deviation from the above, the problem that the alarm is not issued when the alarm should actually be issued can be reduced.

<Third Embodiment>
FIG. 4 is a block diagram showing a schematic configuration of the third embodiment of the security system of the present invention. The crime prevention system according to the third embodiment mainly differs from the second embodiment as follows.
(1) The number of other detection bodies from which the first detection body 1 receives detection data has increased to six.
(2) The number of sensors in the abnormality detection unit 10 has increased to six.
(3) The calculation unit 10 includes a calculation unit that performs statistical calculation.
(4) The storage unit 50 has a statistical data storage unit.
Hereinafter, the above-described differences will be mainly described, and overlapping description of the same configuration as that of the first embodiment will be omitted.

  In addition to the sensors described in the second embodiment, the abnormality detection unit 10 in the first detection body 1 is provided with a pressure sensor 20, a torque sensor 22, and a sound pressure sensor 24. The pressure sensor 20 detects the pressure level applied to the detection body. The torque sensor 22 detects a torque level applied to one member of the detection body. The sound pressure sensor 24 detects the surrounding sound pressure level. By determining the detection results of these sensors in combination, it is possible to eliminate detection omissions, reduce false detections, and increase detection accuracy. Each sensor will be described later with reference to FIG.

  The calculation unit 40 of the determination unit 30 is provided with a statistical calculation unit 46 that calculates a statistical value of each abnormal state level data received from another detection body stored in the data level storage unit 52. The statistical value is, for example, an average value, a center value, a standard deviation value, or the like. In addition, as described in the second embodiment, based on the distance to each detection object calculated by the distance calculation unit 44, the weighted data such as multiplying each abnormal state level data by a predetermined coefficient is used. Statistical calculations may be performed. The calculation result is stored in the statistical data storage unit 59 in the storage unit 50.

  In the present embodiment, the second detector 7 to the seventh detector 7 are detectors having at least the same configuration as the abnormality detector 210 and the communication unit 260 of the second detector 2 shown in FIG. It is desirable that the same configuration as the first detection body 1 such as the determination unit 30 is provided.

  FIG. 5 is a diagram showing an example of a processing flow in the security system of FIG. For convenience, among the second detector 7 to the seventh detector 7 shown in FIG. 4, up to the fourth detector 4 is shown in FIG. 5, but the same applies to the fifth detector 5 and the following. As operation | movement of the 1st detection body 1 of this embodiment, a position is first detected by the position detection part 80 (S1). At that time, the position detection is performed also in the other second detection bodies 2 to 7 (S21, S31, S41). In addition, the detection of the position in each detection body is not limited to when there is an event input, and may be periodically performed at a predetermined short period.

  The first detector 1 sends its position information to other detectors as necessary, but the other detectors (second detector 2 to seventh detector 7) inevitably have their position information. Is transmitted (S22, S32, S42), and the first detector 1 receives position information from each of these detectors (S2). The position information in this case is the abnormal state level data of each detection object, the data of an identification (ID) code for recognizing the detection object 3 associated therewith, time data, and the like.

  Next, in the distance calculation unit 44, each of the other detection bodies (second detection body 2 to seventh detection body 7) is determined from the position information of the self detection body and the position information of the second detection body 2 to the seventh detection body 7. ) Is calculated (S3). The determination unit 30 prioritizes the shorter distance and selects another detection body to be used for determining the abnormality. In addition, the determination unit 30 determines the validity and / or reliability of each abnormal state level data received from another detection body used for abnormality determination based on this distance, and selects each data.

  The determination unit 30 increases the effectiveness and / or reliability and the selectability of the abnormal state level data of the detection objects that are close to each other. On the other hand, for the abnormal state level data of the detection object that is far away, the determination unit 30 reduces the effectiveness and / or reliability, reduces the selectability, and does not use it as a comparison target in some cases (S4). .

  Thereafter, the abnormality detection unit 10 detects an abnormal state (S5). At that time, detection of abnormal states is also performed in the other second detection bodies 2 to 7 (S23, S33, S43). The detection of an abnormal state in each detection body is not limited to when an event is input, and may be periodically performed at a predetermined short period.

  When the abnormality detection unit 10 detects an abnormal state in step S5, the determination unit 30 acquires the detection level of the abnormal state and determines whether or not the detection level is a level for issuing an alarm (S6). . If it is the level at which a warning is issued in step 6, the determination unit 30 detects whether or not the abnormal state level data at the same time from another detection body has not been received yet (S7).

  When the abnormal state level data at the same time is not received from the other detection bodies in step S7, the determination unit 30 transmits the other detection bodies (second detection body 2 to 7th detection via the communication unit 60). An inquiry for detection data of an abnormal state is transmitted to the body 7) (S8). When the other detection bodies (second detection body 2 to seventh detection body 7) receive an inquiry about the detection data of the abnormal state (S24, S34, S44), each detection body (second detection body 2 to seventh detection body). The detection data of the abnormal state at the corresponding time in the body 7) is transmitted to the first detection body 1 together with the time data and the data of the identification (ID) code (S25, S35, S45).

  In the 1st detection object 1, if the detection data of each abnormal state of other detection objects (the 2nd detection object 2-the 7th detection object 7) is received via communication part 60 (S9), judgment part 30 will each A calculation for obtaining a statistical calculation value such as an average value of the detection data of the abnormal state is performed (S10), and a statistical calculation value of the level of the detected data of each abnormal state received and the detection level detected by the abnormality detection unit 10 The comparison unit 42 makes a comparison, and determines whether it is in the same range or shows a tendency to change similarly (S11).

  When the levels of both data are in the same range or show a tendency to change similarly, the determination unit 30 of the first detection body 1 determines that the abnormal state detected by the abnormality detection unit 10 is not artificial. In the case where the alarm is suppressed, but the levels of both data are not in the same range or do not show the same tendency to change, the determination unit 30 determines that the abnormal state detected by the abnormality detection unit 10 is artificial. Judgment is performed and an alarm operation from the alarm unit 70 is performed (S12).

  Moreover, the communication part 60 in the crime prevention apparatus 1 of this embodiment can receive the abnormal condition level data containing several position data as mentioned above, and the crime prevention apparatus 1 records each level of abnormal condition level data. It has a data level storage unit 52, and the determination unit 30 determines whether or not there is an artificial abnormal state based on the average value of each abnormal state level data determined to be a peripheral from the position data recorded in the data level storage unit 52 Therefore, if the average value of the abnormal state level data received from the surrounding crime prevention devices 2 to 7 is significantly different from the average value, it is determined that the abnormality is artificial, thereby improving the detection accuracy of the abnormal state. be able to.

  As described above, in the present embodiment, data is compared with a plurality of nearby detectors, the data is weighted based on the distance, and the data to be compared is an average value obtained from a large number of data. Therefore, it is possible to determine that the abnormal state level data detected by the self-protection device is not artificial, more accurately than in the first and second embodiments, and malfunction even if the detection sensitivity is increased. Can be avoided.

FIG. 6 is a diagram illustrating an example of a hardware configuration in the first detection body 1 of each embodiment described above.
The internal configuration block of the first detection body 1 shown in FIG. 6 described below can be applied to the second detection body 2 to the seventh detection body 7 as necessary. Further, the number of detection bodies may be 7 or less or 8 or more as long as it is plural (2 or more). Further, the first detector 1 may have a configuration in which only RAM and ROM or only an HD drive is added as a storage medium. Further, the second detector 7 to the seventh detector 7 may have a configuration that does not include a display device, a user interface portion such as a user interface and an input / output device, and an alarm device.

  The first detector 1 includes a CPU peripheral unit having a CPU 101, a RAM 103, a graphic controller 109, and a display device 110 connected to each other by a main controller 111, and a communication interface connected to the main controller 111 by an input / output controller 112. 104, an input / output unit having a hard disk drive 105 and a CD-ROM drive 107, and a legacy input / output unit having a ROM 102, a flexible disk drive 106, and an input / output chip 108 connected to an input / output controller 112.

  The main controller 111 connects the RAM 103, the CPU 101 that accesses the RAM 103 at a high transfer rate, and the graphic controller 109. The CPU 101 operates based on programs stored in the ROM 102 and the RAM 103 and controls each unit. The graphic controller 109 acquires image data generated on a frame buffer provided in the RAM 103 by the CPU 101 or the like and displays it on the display device 110. Instead of this, the graphic controller 109 may include a frame buffer for storing image data generated by the CPU 101 or the like.

  The input / output controller 112 includes a main controller 111, a hard disk drive 105, a communication interface 104, a CD-ROM drive 107, a user interface 113, a data interface 121, a sensor interface 131, and an acoustic interface 141, which are relatively high-speed input / output devices. Connecting. The hard disk drive 105 stores programs and data used by the CPU 101. The communication interface 104 is connected to the communication network 800 to transmit / receive programs or data. Although the communication network 800 shows a wired case in FIG. 6, it is desirable to establish communication between each detection body using wireless communication when each detection body is a mobile body. When each detector is fixed, wired communication using an electric signal or an optical signal may be used.

  The CD-ROM drive 107 reads a program or data from the CD-ROM 160 and provides it to the hard disk drive 105 and the communication interface 104 via the RAM 103. For example, a manual input device such as a keyboard, a mouse, or a touch panel, a voice input device, or the like is connected to the user interface 113. For example, a global positioning system (GPS) or the like is connected to the data interface 121 as a position detection device 123 and a timing device 122. Thereby, it is possible to obtain accurate latitude data and longitude data of the detection body and accurate acquisition time data thereof.

  At least one of the sensors shown in FIG. 6 is connected to the sensor interface 131, and various sensors are connected as necessary. The acceleration sensor 132 measures, for example, acceleration due to impact and acceleration due to vibration. The proximity sensor 133 measures, for example, a change in electric field strength caused by the movement of a surrounding object (having an electric capacity), so that the object moves in the approaching direction or moves away from the object. Detect whether or not For example, the tilt sensor 134 detects the tilt by contacting one electrode suspended by gravity and the other electrode disposed around at an interval. The inclination sensor 134 can detect a situation in which the moving body is jacked up in the case of theft or the like by detecting the gravitational acceleration.

  When a criminal who conducts theft enters the inside of the detection body or removes the attachment of the detection body, it will approach the detection body and give an impact or vibration. An abnormal situation can be detected by measuring the degree of approach. However, in principle, acceleration sensors and tilt sensors are used when earthquakes occur, when large vehicles such as dump trucks, trains, etc. pass nearby, or when they receive sound pressure from large fireworks such as fireworks displays. Acceleration and inclination are detected even when the vehicle is stopped by a traffic jam or the like on a platform that easily vibrates, such as on a bridge, when a strong wind is received. The proximity sensor also detects the approach of an object even when a non-human dog or cat approaches, or when a passer other than a criminal passes. Therefore, erroneous detection cannot be avoided only by providing these sensors.

  Other sensors connected to the sensor interface 131 include, for example, a pressure level applied to at least one surface of the detection body or a pressure sensor 20 for detecting a change in the level, and at least one member constituting or attached to the detection body. There are a torque sensor 22 that detects a torque level or a level change thereof, a sound pressure sensor 24 that detects a sound pressure level around a detection body, and the like. When a force is applied to the detection body very slowly, it may be difficult to detect with the acceleration sensor 12, but by using the pressure sensor 20, the stress caused by such a criminal can be detected. In addition, when the detection body is large, it may be difficult to detect the criminal's stress on each small member. However, by providing the torque sensor 22 on each individual member, the detection can be ensured. Further, it is possible to detect that a criminal is performing work by detecting noise caused by human voice or work with the sound pressure sensor 24 which is a kind of microphone. Further, the sound pressure sensor 24 can detect a contact sound of the moving body to the casing (vehicle body), a breaking sound of the glass, and a change in atmospheric pressure in the vehicle when the door is opened. It is also possible to detect that an operation in which a special event occurs is being performed.

  An acoustic alarm device 142 such as a buzzer or a sound alarm can be connected to the acoustic interface 141. The horn may be capable of notifying the abnormality by sound as well as the sound of a siren or the like. If necessary, an optical alarm device such as a flashlight (LED) or a red light may be connected to the optical interface.

  Further, for example, the ROM 102 and a relatively low-speed input / output device (flexible disk drive 106) of the input / output chip 108 are connected to the input / output controller 112. The ROM 102 stores a boot program executed when the first detector 1 is activated, a program depending on the hardware of the first detector 1, and the like. The flexible disk drive 106 reads a program or data from the flexible disk 150 and provides it to the hard disk drive 105 and the communication interface 104 via the RAM 103. The input / output chip 108 connects various input / output devices via the flexible disk drive 106 and, for example, a parallel port, a serial port, a keyboard port, a mouse port, and the like.

  The program executed by the CPU 101 is stored in a recording medium such as the flexible disk 150, the CD-ROM 160, or an IC card and provided by the user. The program stored in the recording medium may be compressed or uncompressed. The program is installed in the hard disk drive 105 from the recording medium, read into the RAM 103, and executed by the CPU 101.

  The program executed by the CPU 101 causes the first detection body 1 to function as described with reference to FIGS. Further, the first detector 1 of FIG. 3 is caused to function similarly. Other detection bodies such as the second detection body 2 to the seventh detection body in FIG. 2 function in the same manner if they have the same configuration.

  The program shown above may be stored in an external storage medium. As the storage medium, in addition to the flexible disk 150 and the CD-ROM 160, an optical recording medium such as a DVD or PD, a magneto-optical recording medium such as an MD, a tape medium, a semiconductor memory such as an IC card, or the like can be used. Further, a storage device such as a hard disk or a RAM provided in a server system connected to a dedicated communication network or the Internet may be used as a recording medium and provided to the first detector 1 via the network.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention. In addition, the description contents of the claims, background art, problems to be solved by the invention, and means for solving the problems are appropriately applied to each embodiment, and the technical common sense of those skilled in the art is applied to form the embodiment. be able to. For example, various changes or improvements can be applied to the configuration of the program by applying the common general knowledge of those skilled in the art. For example, the processing may be configured as steps described in the section for solving the problem. .

1 first detector;
2 second detector,
3 third detector,
4 Fourth detector,
5 fifth detector,
6 sixth detector,
7 seventh detector,
10 Anomaly detection unit,
12 Accelerometer,
14 proximity sensor,
16 Tilt sensor,
20 pressure sensor,
22 Torque sensor,
24 sound pressure sensor,
30 determination unit,
40 arithmetic unit,
42 comparison part,
44 Distance calculator,
50 storage unit,
52 data level storage,
54 data number storage unit,
56 data detection time storage unit,
58 data detector ID storage unit,
60 communication department,
70 Alarm section,
80 position detector,
90 timing part,
101 CPU (Central Processing Unit),
102 ROM (read only memory),
103 RAM (Random Access Memory),
104 Communication interface (I / F),
105 hard disk (HD) drive,
106 floppy (registered trademark) disk (FD) drive,
107 CD-ROM drive,
108 Input / output (I / O) chips,
109 graphic controller,
110 display device,
111 main controller,
112 input / output (I / O) controller;
113 User interface (I / F),
114 input / output devices,
121 Data interface (I / F),
122 timing device,
123 position detection device,
131 Sensor interface (I / F),
132 acceleration sensor,
133 proximity sensor,
134 tilt sensor,
141 Acoustic interface (I / F),
142 alarm device,
210 anomaly detection unit,
212 acceleration sensor,
260 communication unit,
800 Communication network.

Claims (14)

An abnormality detection unit for detecting an abnormal state level;
A communication unit capable of receiving abnormal state level data transmitted from other security devices;
E Bei and artificial abnormal state whether a determination unit based on the detection result and the received abnormal condition level data of the abnormal state levels of the abnormality detecting unit,
The said determination part determines whether it is the said artificial abnormal state in consideration of the effectiveness of the received said abnormal state level data, The crime prevention apparatus characterized by the above-mentioned . The abnormal state level data received from the other security device includes the position data of the other security device,
The security device (herein, “the security device” refers to a security device that is not the other security device) further includes a position detection unit that detects a position on the earth,
The determination unit
The includes a position of the security device that is detected by the position detection unit, a calculator for calculating a distance to the other of the security device from the position data of the other security device that has received,
The security device according to claim 1 , wherein the determination unit determines the effectiveness based on the distance. The security device (herein, “the security device” refers to a security device that is not the other security device) is mounted on a moving body,
The communication unit can receive abnormal state level data by wireless communication,
The determination unit
The crime prevention device according to claim 1 , wherein the effectiveness is determined based on a signal strength of abnormal state level data by the wireless communication. An abnormality detection unit for detecting an abnormal state level;
A communication unit capable of receiving abnormal state level data transmitted from other security devices;
A determination unit for determining whether or not an artificial abnormal state based on the detection result of the abnormal state level of the abnormality detection unit and the received abnormal state level data;
The communication unit can receive a plurality of the abnormal state level data,
The determination unit
A data number storage unit for recording the number of each abnormal state level data ;
A crime prevention device, wherein when the number of abnormal state level data recorded in the data number storage unit is greater than a predetermined number, it is determined that the artificial abnormal state is not present. An abnormality detection unit for detecting an abnormal state level;
A communication unit capable of receiving abnormal state level data transmitted from other security devices;
A determination unit for determining whether or not an artificial abnormal state based on the detection result of the abnormal state level of the abnormality detection unit and the received abnormal state level data;
The communication unit can receive a plurality of the abnormal state level data,
A data level storage unit for recording each level of the abnormal state level data;
The determination unit
A security device, wherein it is determined whether or not the artificial abnormal state is based on a statistical value of each abnormal state level data recorded in the data level storage unit. The data level storage unit stores abnormal state level data at a predetermined position in the past,
The determination unit
The crime prevention device according to claim 5 , wherein as the abnormal state level, it is determined whether or not the artificial abnormal state is based on abnormal state level data at the past predetermined position. An abnormality detection unit for detecting an abnormal state level;
A communication unit capable of receiving abnormal state level data transmitted from other security devices;
A determination unit for determining whether or not an artificial abnormal state based on the detection result of the abnormal state level of the abnormality detection unit and the received abnormal state level data;
Has a timekeeping part that keeps time,
The abnormal state level data received from the other crime prevention device includes time data when the abnormal state level data is detected,
The determination unit
A crime prevention device, wherein it is determined whether or not the artificial abnormal state is based on the abnormal state level data detected within a predetermined time range and the received abnormal state level data. The determination unit
When detecting an abnormal state level exceeding the level at which the abnormality detection unit issues an alarm ,
The crime prevention device according to any one of claims 1 to 7 , wherein a request is made to transmit the detected abnormal state level data to the other crime prevention device via the communication unit. When the high-efficiency data cannot be selected in the abnormal state level data received from the other security device based on the transmission request, the determination unit is configured for the other security device, and for another security device. 9. The crime prevention device according to claim 8 , wherein the crime prevention device requests to transmit the detected abnormal condition level data, and requests to relay the abnormal condition level data. The determination unit
As the abnormal state level, an acceleration detected by a sensor capable of detecting multi-directional acceleration including a value of the presence level of the object or a change level thereof detected by a sensor capable of detecting the presence or approach of the object, or an impact or vibration. level value, slope from the level or value of the change of the inclination detected by the sensor capable of detecting a according to any one of claim 1 to 9, characterized by using at least one value Security device. An abnormality detection unit for detecting an abnormal state level;
A communication unit capable of receiving abnormal state level data transmitted from other security devices;
A determination unit for determining whether or not an artificial abnormal state based on the detection result of the abnormal state level of the abnormality detection unit and the received abnormal state level data;
The determination unit
When the abnormal state level detected by the abnormality detection unit exceeds a predetermined reference level, the abnormal state level is determined to be the artificial abnormal state,
If the difference between the value of the abnormal state level detected by the abnormality detection unit and the value of the abnormal state level data received from the other security device is equal to or greater than a predetermined value, the abnormality detection unit has detected the difference. A crime prevention device, wherein even if the abnormal state level does not exceed a predetermined reference level, the artificial abnormal state is determined. The crime prevention device according to any one of claims 1 to 11, further comprising an alarm unit that suppresses an alarm when the determination result is not an artificial abnormal state. The program for making a computer implement | achieve the function of the determination part of the security device of any one of Claims 1-12. The crime prevention device according to any one of claims 1 to 12, wherein the other crime prevention device has a configuration of the crime prevention device (herein, "the crime prevention device" refers to a crime prevention device that is not the other crime prevention device). apparatus.

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