Operation identification system, security system, and wiring fixture

Abstract

To enable a security apparatus to operate by motion of a physical body in a second direction intersecting a direction of radio wave transmission.SOLUTION: An operation identification system 1 comprises a radio wave sensor 10, a physical body detection unit 22, a determination unit 23, and an output unit 24. The radio wave sensor 10 transmits a transmission wave to a real space at each of a plurality of detection times, and outputs an output signal based on the transmitted wave and a reflected wave when a reflected wave of the transmitted wave from a physical body is received. The physical body detection unit 22 detects a first movement trajectory of the physical body including at least a movement component in a second direction intersecting the first direction which is the direction of radio wave transmission on the basis of a plurality of output signals respectively outputted from the radio wave sensor 10 at each of the plurality of detection times. The determination unit 23 determines whether or not the first movement trajectory of the physical body detected by the physical body detection unit 22 matches a second movement trajectory registered in a storage unit 30. The output unit 24 outputs, to a security apparatus 4, a control command indicating whether or not to execute an alarm operation in accordance with the determination result of the determination unit 23.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to an operation identification system, a security system, and a wiring device. More particularly, the present disclosure relates to an operation identification system, a security system, and a wiring device that accept an operation for a security device. [Background technology]

[0002] Patent Document 1 discloses an intrusion detection device comprising a transmitting means, a receiving means, a received wave intensity measuring means, and a human body determining means. The transmitting means transmits radio waves into a detection area. The receiving means receives reflected waves of the transmitted radio waves. The received wave intensity measuring means measures the received wave intensity received by the receiving means. The human body determining means determines whether a human body has entered the detection area based on the measured received wave intensity. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-236171 Summary of the Invention [Problem to be solved by the invention]

[0004] An object of the present disclosure is to provide an operation identification system, a security system, and a wiring device that are capable of operating a security device through the movement of an object in a second direction that intersects with the transmission direction of radio waves. [Means for solving the problem]

[0005] A manipulation identification system according to one embodiment of the present disclosure includes a radio wave sensor, an object detection unit, a determination unit, and an output unit. The radio wave sensor transmits a transmission wave, which is a frequency-modulated radio wave, into a real space at each of a plurality of detection times, and upon receiving a wave reflected by an object of the transmission wave, outputs an output signal based on the transmission wave and the reflected wave. The object detection unit detects a first movement trajectory of the object, the first movement trajectory including at least a movement component in a second direction intersecting with a first direction, which is the transmission direction of the radio wave, based on the plurality of output signals output from the radio wave sensor at the plurality of detection times. The determination unit determines whether the first movement trajectory detected by the object detection unit matches a second movement trajectory registered in a storage unit. The output unit outputs a control command to a security device capable of performing an alert operation, including at least one of preventing intrusion into and monitoring a targeted area, instructing the security device whether to perform the alert operation, based on the determination result of the determination unit.

[0006] A security system according to one aspect of the present disclosure includes the operation identification system and the security device.

[0007] A wiring device according to an aspect of the present disclosure includes the operation identification system and a housing that houses the operation identification system. The housing is attachable to a construction surface. [Effects of the Invention]

[0008] According to the present disclosure, there is provided an operation identification system, a security system, and a wiring device that are capable of operating a security device by the movement of an object in a second direction that intersects with the transmission direction of radio waves. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a schematic block diagram of a security system including an operation identification system according to an embodiment of the present disclosure. [Figure 2] FIG. 2 is a front view showing a state in which the wiring device including the above operation identification system is installed on a wall. [Figure 3]FIG. 3 is a plan view showing a detection area of ​​the operation recognition system. [Figure 4] FIG. 4 is a graph showing changes in the frequency of the transmission wave and the reception wave transmitted by the radio wave sensor provided in the operation recognition system. [Figure 5] FIG. 5 is a diagram conceptually illustrating inter-frame difference performed by the operation identification system. [Figure 6] FIG. 6 is a frequency spectrum diagram showing an example of an FFT result obtained by the operation recognition system in the frame Fr0. [Figure 7] FIG. 7 is a frequency spectrum diagram showing an example of an FFT result obtained by the operation recognition system in the frame Fr1. [Figure 8] FIG. 8 is a frequency spectrum diagram showing an example of a difference calculated by the manipulation recognition system from the FFT result in frame Fr0 and the FFT result in frame Fr1. [Figure 9] FIG. 9 is a diagram conceptually illustrating inter-frame difference performed by the operation identification system. [Figure 10] FIG. 10 is a distribution diagram showing the distribution of points representing moving objects detected by the operation identification system of the same embodiment. [Figure 11] 11A is a plan view showing a detection area of ​​the manipulation recognition system of the same, and FIG. 11B is a diagram in which a plurality of points of an object whose movement has been detected by the manipulation recognition system of the same are plotted in three-dimensional space. [Figure 12] 12A is a plan view showing a detection area of ​​the manipulation recognition system of the same, and FIG. 12B is a diagram in which a plurality of points of an object whose movement has been detected by the manipulation recognition system of the same are plotted in three-dimensional space. [Figure 13] Fig. 13A is a plan view showing a detection area of ​​the manipulation recognition system of the same, and Fig. 13B is a diagram in which a plurality of points of an object whose movement has been detected by the manipulation recognition system of the same are plotted in three-dimensional space. [Figure 14] FIG. 14 is a front view showing an interface screen of a communication terminal capable of communicating with the operation identification system. [Figure 15]FIG. 15 is a flowchart illustrating the operation of the security system. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, an operation identification system, a security system, and a wiring device according to embodiments will be described in detail with reference to the drawings. However, each diagram described in the following embodiments is a schematic diagram, and the dimensional ratios of the sizes of the components do not necessarily reflect the actual dimensional ratios. Furthermore, the configurations described in the following embodiments are merely examples of the present disclosure. The present disclosure is not limited to the following embodiments, and various modifications are possible depending on the design, etc., as long as the effects of the present disclosure can be achieved.

[0011] (Embodiment) (1) Overview As shown in FIG. 1, the operation recognition system 1 of this embodiment includes a radio wave sensor 10, an object detection unit 22, a determination unit 23, and an output unit 24.

[0012] The radio wave sensor 10 transmits a transmission wave, which is a frequency-modulated radio wave, into real space at each of a plurality of detection times, and upon receiving a wave reflected by an object of the transmission wave, outputs an output signal based on the transmission wave and the reflected wave.

[0013] The object detection unit 22 detects a first movement trajectory of the object that includes at least a movement component in a second direction that intersects with a first direction, which is the transmission direction of the radio waves, based on multiple output signals output from the radio wave sensor 10 at multiple detection points.

[0014] The determination unit 23 determines whether the first movement trajectory of the object detected by the object detection unit 22 matches the second movement trajectory registered in the storage unit 30 or not.

[0015] The output unit 24 outputs a control command to the security device 4 capable of performing security operations including at least one of preventing intrusion into the security target area and monitoring, instructing the security device 4 whether or not to perform security operations depending on the judgment result of the judgment unit 23.

[0016] The security system X1 of this embodiment includes an operation identification system 1 and a security device 4.

[0017] The manipulation identification system 1 of this embodiment can detect a moving object (hereinafter, sometimes referred to as a "moving object"). In this embodiment, the detection target of the manipulation identification system 1 is an object that can perform an operation on the security device 4 by moving part of the object, such as a person. Note that the object detected by the manipulation identification system 1 is not limited to a person, and may also be an animal, a robot hand, or the like.

[0018] The security device 4 is a device capable of performing security operations including at least one of preventing intrusion into a security area 410 (see FIG. 3 ) and monitoring intrusion into the security area 410. Here, the security area 410 is an area in a facility 400, such as a residential or non-residential facility, that is protected from intrusion from the outside. The security area 410 may be a partial area within the facility 400, or the entire area within the facility 400. The security device 4 is, for example, an electric locking device 4A that locks or unlocks a door 407 provided at an entrance to the security area 410. The electric locking device 4A performs security operations to prevent intrusion into the security area 410 by controlling the locking or unlocking of the door 407. The security device 4 may also be an intrusion detection system 4B that detects (monitors) intrusion of a person into the security area 410 using a monitoring sensor, such as an infrared sensor, installed in the security area 410. The intrusion detection system 4B uses a monitoring sensor such as an infrared sensor to perform a security operation to detect the intrusion of a person into the security area 410. In other words, the security device 4 may include at least one of an electric locking device 4A for locking or unlocking a door 407 provided at the entrance / exit of the security area 410, and an intrusion detection system 4B for detecting the intrusion of a person into the security area 410. In the following explanation, an example will be given in which the security device 4 is the electric locking device 4A.

[0019] The manipulation identification system 1 includes a housing 2 that houses the radio wave sensor 10. The housing 2 is made of a synthetic resin that is transparent to the transmitted and reflected waves transmitted by the radio wave sensor 10. The housing 2 of the manipulation identification system 1 is installed, for example, on a wall 406 that has a door 407. When the housing 2 of the manipulation identification system 1 is installed on the wall 406, the transmission direction in which the radio wave sensor 10 transmits radio waves, i.e., the first direction, is a direction along the normal direction of the wall 406 (a direction along the Y-axis direction in FIG. 3 and the like). The transmission direction in which the radio wave sensor 10 transmits radio waves refers to the direction in which the radio waves transmitted by the radio wave sensor 10 propagate. A second direction that intersects with the first direction is a direction perpendicular to the normal direction of the wall 406 (a direction perpendicular to the Y-axis direction). The direction perpendicular to the normal direction of the wall 406 is not limited to a direction that intersects with the normal direction of the wall 406 at a right angle, and may be a direction that intersects with the normal direction of the wall 406 at an angle of, for example, 70 degrees to 110 degrees. The second direction is, for example, a direction along the X-axis direction, but may also be a direction along the Z-axis direction, or may be a direction along any direction perpendicular to the Y-axis direction.

[0020] The object detection unit 22 of the operation identification system 1 is capable of detecting a first movement trajectory of an object that includes at least a movement component in the second direction, based on the output signal of the radio wave sensor 10. Here, the first movement trajectory detected by the object detection unit 22 includes at least one of a movement trajectory in which a contact position where a part of the object comes into contact with the surface of the housing 2 moves in the second direction, and a movement trajectory in which the object moves in the second direction while being separated from the surface of the housing 2. When the first movement trajectory is a movement trajectory in which a contact position where a part of the object comes into contact with the surface of the housing 2 moves in the second direction, the person 300 touches the surface of the housing 2 with a hand or the like and performs an operation (e.g., a swipe operation) that moves the contact position in the second direction. When the first movement trajectory is a movement trajectory in which the object moves in the second direction while being separated from the surface of the housing 2, the person performs a gesture operation that moves a part or the entire body without touching the surface of the housing 2.

[0021] When a person 300 present in the detection area A1 of the radio wave sensor 10 performs a gesture operation or the like of moving a part of their body in the second direction in order to operate the security device 4, a first movement trajectory of an object that includes at least a movement component in the second direction is detected by the object detection unit 22. The determination unit 23 determines whether or not the first movement trajectory detected by the object detection unit 22 matches a second movement trajectory registered in the storage unit 30. Then, the output unit 24 outputs a control command to the security device 4, instructing whether or not to execute an alert operation, according to the determination result of the determination unit 23.

[0022] As described above, according to the operation identification system 1 of this embodiment, it is possible to provide an operation identification system 1 and a security system X1 that can operate a security device 4 by the movement of an object in a second direction that intersects with the transmission direction (first direction) of radio waves.

[0023] (2)Details The manipulation recognition system 1 of this embodiment can detect a first movement trajectory of an object using the radio wave sensor 10.

[0024] The operation identification system 1 is provided in a wiring device 100 (see FIG. 2 ) that is installed on a construction surface such as the surface of a wall 406. In other words, the wiring device 100 includes the operation identification system 1 and a housing 2. The housing 2 houses the operation identification system 1. The housing 2 is attachable to the construction surface. The construction surface is, for example, the surface of the wall 406, but it may also be the underside of a ceiling. The housing 2 is a molded product made of, for example, a synthetic resin, and is formed into, for example, a disk shape, although the shape and dimensions of the housing 2 can be changed as appropriate. On the surface of the housing 2, circular marks arranged in three rows and three columns are displayed by printing or the like, which serve as a guide for the operation position when performing a sweep operation.

[0025] (2.1) Configuration The configurations of the operation identification system 1, the security system X1, and the wiring device 100 of this embodiment will be described in more detail below with reference to the drawings.

[0026] (2.1.1) Operation Identification System and Security System The operation identification system 1 includes the above-described radio wave sensor 10, a processing unit 20, and a storage unit 30. The operation identification system 1 further includes a device control unit 40, a notification unit 41, an operation unit 42, and a communication unit 43.

[0027] The operation identification system 1 and the security device 4 form a security system X1.

[0028] The radio wave sensor 10 transmits a transmission wave Tr (see Figure 4), which is a frequency-modulated radio wave, from a transmitting antenna, receives a reception wave (reflected wave) Re (see Figure 4), which is the transmission wave Tr reflected by an object, at a receiving antenna, and outputs an intermediate frequency signal (IF signal) obtained by mixing the transmission wave Tr and the reception wave Re.

[0029] The radio wave sensor 10 includes an oscillator 11, a transmitter 12, a receiver 13, and a mixer 14.

[0030] The oscillator 11 periodically generates a transmission signal modulated by, for example, a frequency modulated continuous wave (FMCW) method. Specifically, the oscillator 11 periodically generates a transmission signal modulated in frequency so that the frequency continuously increases from f0 to f1 over a predetermined chirp time Tc.

[0031] The transmitter 12 outputs the transmission signal generated by the oscillator 11 to the transmission antenna, causing the transmission antenna to transmit a transmission wave Tr (see FIG. 4). The frequency of the transmission wave Tr increases continuously from f0 to f1 over a predetermined chirp time Tc.

[0032] The receiving unit 13 receives the received wave Re (see FIG. 4) reflected by an object with a receiving antenna, converts the received wave Re into an electrical signal, and outputs the resulting received signal to the mixer 14. The receiving unit 13 has a function of measuring the signal strength of the received wave Re received by the receiving antenna. The radio wave sensor 10 outputs the measurement result of the signal strength of the received wave Re measured by the receiving unit 13 to the processing unit 20.

[0033] The mixer 14 generates an intermediate frequency signal (IF signal) by mixing the transmission signal generated by the oscillator 11 with the reception signal output by the receiver 13. The IF signal is generated during the period when the transmission wave Tr is being transmitted and the reception wave Re is being received (i.e., the period from the start of reception of the reception wave Re to the end of transmission of the transmission wave Tr). The IF signal is a signal that indicates the frequency difference Δf (see FIG. 4) between the transmission wave Tr and the reception wave Re. The IF signal is a signal that indicates the difference between the frequency of the transmission wave Tr and the frequency of the reception wave Re at time t, but if the object that reflected the transmission wave Tr is stationary, the IF signal will be a constant value.

[0034] Generally, to identify the three-dimensional position of a detection target object (moving object), the radio wave sensor 10 needs to include, for example, one transmitting antenna and three or more receiving antennas. In this embodiment, the radio wave sensor 10 includes one transmitting antenna and three receiving antennas. When the radio wave sensor 10 includes three receiving antennas, an IF signal is generated by mixing the transmitting signal generated by the oscillator 11 with the receiving signal at each of the three receiving antennas. Therefore, the radio wave sensor 10 outputs three IF signals corresponding to the three receiving antennas each time it performs a transmission / reception operation. Note that the positions of the one transmitting antenna and three receiving antennas included in the radio wave sensor 10 are known, and the position information of the one transmitting antenna and the three receiving antennas is pre-stored in the storage unit 30. When the radio wave sensor 10 includes multiple antennas, the multiple antennas may be housed in a single housing 2 or may be arranged in multiple locations.

[0035] The processing unit 20 is mainly composed of a computer system having one or more processors and a memory. The functions of the processing unit 20 are realized by the processor of the computer system executing a program recorded in the memory of the computer system. The program may be recorded in the memory, or may be provided via a telecommunications line such as the Internet, or may be recorded on a non-transitory recording medium such as a memory card and provided.

[0036] The processing unit 20 has the functions of the object detection unit 22, the determination unit 23, and the output unit 24 described above. In this embodiment, the processing unit 20 further has the functions of an acquisition unit 21, a registration unit 25, a mode setting unit 26, and a device setting unit 27. Note that the acquisition unit 21, the object detection unit 22, the determination unit 23, the output unit 24, the registration unit 25, the mode setting unit 26, and the device setting unit 27 merely indicate functions realized by the processing unit 20, and do not necessarily indicate actual configurations.

[0037] The operation unit 42 outputs operation information in response to an operation by the user. The operation unit 42 is, for example, a push button switch, a slide switch, or a DIP switch provided on the side of the housing 2. The operation unit 42 is provided on the housing 2 in a state that allows the user to operate it. The operations received by the operation unit 42 are mechanical operations.

[0038] The operation unit 42 is used, for example, to directly operate the security device 4. When a user performs an operation to unlock or lock the door 407 using the operation unit 42, the operation unit 42 outputs operation information corresponding to the user's operation to the processing unit 20. That is, the operation unit 42 outputs operation information corresponding to the user's operation to the processing unit 20.

[0039] The operation unit 42 is also used to perform settings related to the control of the security device 4, for example. When a user uses the operation unit 42 to input setting information related to at least one of the attributes of the security device 4 and the control mode of the security device 4, the operation unit 42 outputs the setting information according to the user's operation to the processing unit 20. That is, the operation unit 42 outputs the setting information according to the user's operation. The setting related to the control of the security device 4 includes, for example, at least one of setting the attributes of the security device 4 (such as the type and model number of the security device 4) and setting the control mode of the security device 4. Setting the attributes of the security device 4 means, for example, setting at least one of the type and model number of the security device 4. Types of security devices 4 include, for example, an electric lock device 4A, an intrusion detection system 4B, and a sensor system that detects whether an abnormal event such as a fire or flooding occurs in the alert area 410. The model number of the security device 4 is an identification number assigned to the type of security device 4 by, for example, the manufacturer of the security device 4. For example, if there are multiple types of devices used as security devices 4, the control command output by operation identification system 1 may vary depending on the type of device used as security device 4. Device setting unit 27 sets the attributes of security device 4 based on setting information input from operation unit 42, and therefore can cause output unit 24 to output a control command according to the type of device used as security device 4.

[0040] Furthermore, setting the control mode of the security device 4 means making settings related to the control method of the security device 4. Examples of control methods for the security device 4 include a touch control method, a gesture control method, and a motion detection control method. The touch control method is a control method for controlling the security device 4 in accordance with the result of detection by the object detection unit 22 of a first movement trajectory of an object moving along the surface of the housing 2. The gesture control method is a control method for controlling the security device 4 in accordance with the result of detection by the object detection unit 22 of a first movement trajectory of an object moving while separated from the surface of the housing 2. The motion detection control method and the like are control methods for controlling the security device 4 based on the result of detection by the object detection unit 22 of the presence or absence of a moving object. Note that if the security device 4 is an electric lock device 4A, the control method of the electric lock device 4A is a control method in which the electric lock device 4A switches the door 407 between a locked state and an unlocked state. Furthermore, when the security device 4 is an intrusion detection system 4B, the control method of the intrusion detection system 4B is a control method that switches between an alert mode that enables detection operations to detect intrusions into the alert area 410 and an alert disabling mode that stops detection operations to detect intrusions into the alert area 410.

[0041] When the user uses the operation unit 42 to input operation information for operating the security device 4, the operation information is output from the operation unit 42 to the processing unit 20. In addition, when the user uses the operation unit 42 to input setting information related to the control of the security device 4, the setting information is output from the operation unit 42 to the processing unit 20.

[0042] The communication unit 43 is configured to be able to communicate with the external device 80. The external device 80 has a communication function that allows it to communicate with the operation identification system 1. The external device 80 is, for example, a smartphone with a wireless communication function, but may also be a tablet computer, a wearable computer, or the like.

[0043] The external device 80 is capable of executing software for operating the security device 4 and for making settings related to the control of the security device 4. When a user inputs operation information for operating the security device 4 using the external device 80, the operation information is transmitted from the external device 80 to the communication unit 43. The communication unit 43 is capable of receiving the operation information transmitted from the external device 80. Upon receiving the operation information from the external device 80, the communication unit 43 outputs the operation information to the processing unit 20. Furthermore, when a user inputs setting information for controlling the security device 4 using the external device 80, the setting information is transmitted from the external device 80 to the communication unit 43. The communication unit 43 is capable of receiving the setting information transmitted from the external device 80. Upon receiving the setting information from the external device 80, the communication unit 43 outputs the setting information to the processing unit 20. FIG. 14 shows an example of a setting screen for setting a control method displayed on a user interface screen 81 of the external device 80. Three selection buttons BT1 to BT3 are displayed on this user interface screen 81. The selection button BT1 is a selection button for selecting a touch control method. The selection button BT2 is a selection button for selecting a gesture control method. The selection button BT3 is a selection button for selecting a moving object detection control method. When the person 300 operates one of the selection buttons BT1 to BT3 displayed on the user interface screen 81, setting information for setting the control method corresponding to the operated selection button (one of the selection buttons BT1 to BT3) is transmitted to the communication unit 43, so that the user of the external device 80 can set the desired control method.

[0044] The external device 80 is an information terminal such as a smartphone, a tablet computer, or a wearable computer, but may also be a control device or the like that can communicate with the communication unit 43. The communication method between the communication unit 43 and the external device 80 is a wireless communication method such as Wi-Fi (registered trademark) or Bluetooth (registered trademark), but may also be a wired communication method and can be changed as appropriate.

[0045] The device setting unit 27 performs settings related to at least one of the attributes of the security device 4 and the control mode of the security device 4. Here, the device setting unit 27 can set at least one of the attributes of the security device 4 and the control mode of the security device 4 based on at least one of the setting information input by operating the operation unit 42 and the setting information received by the communication unit 43 from the external device 80. In other words, the device setting unit 27 performs settings based on the setting information acquired from at least one of the operation unit 42 and the communication unit 43. Note that in this embodiment, a case will be described in which the attribute of the security device 4 is set to the electric lock device 4A and the control mode of the security device 4 is set to gesture operation (gesture control method).

[0046] The storage unit 30 includes memories such as RAM (Random Access Memory), ROM (Read-Only Memory), and EEPROM (Electrically Erasable Programmable Read-Only Memory). The storage unit 30 stores, for example, programs executed by the processing unit 20. The storage unit 30 also stores the results of calculations by the processing unit 20, etc.

[0047] The acquisition unit 21 acquires an output signal from the radio wave sensor 10. In this embodiment, the acquisition unit 21 acquires an IF signal as an output signal from the radio wave sensor 10. Since the radio wave sensor 10 is equipped with three receiving antennas, the acquisition unit 21 acquires three IF signals corresponding to the three receiving antennas from the radio wave sensor 10 each time the radio wave sensor 10 performs a transmission / reception operation. Furthermore, the acquisition unit 21 acquires from the radio wave sensor 10 measurement results of the signal strength of the received wave Re received by each of the three receiving antennas each time the radio wave sensor 10 performs a transmission / reception operation.

[0048] The object detection unit 22 obtains a frequency spectrum by performing FFT (Fast Fourier Transform) processing on the IF signal obtained by the acquisition unit 21 from the radio wave sensor 10, and obtains the frequency spectrum as an FFT result. In this embodiment, since the radio wave sensor 10 has three receiving antennas, the mixer 14 outputs three IF signals between the transmission wave Tr and three receiving waves Re received by the three receiving antennas. Therefore, every time the radio wave sensor 10 performs a transmission / reception operation, the object detection unit 22 calculates a group of FFT results including three FFT results (frequency spectra) obtained by performing FFT processing on each of the three IF signals, and stores the calculated group of FFT results in the storage unit 30. Here, the group of FFT results obtained in one transmission / reception operation of the transmission wave Tr and the receiving wave Re includes three FFT results (frequency spectra) obtained by performing FFT processing on each of the three IF signals corresponding to the three receiving antennas.

[0049] The radio wave sensor 10 repeats transmission and reception operations at a predetermined period T (see FIG. 5). The predetermined period T is, for example, 200 mS. When the radio wave sensor 10 performs a transmission and reception operation once per frame Fr, one frame Fr is one period T (for example, 200 mS), and the radio wave sensor 10 performs a transmission and reception operation once per 200 mS. Note that the duration of one frame Fr is not limited to 200 mS and can be changed as appropriate.

[0050] Here, the process by which the object detection unit 22 determines the position of a moving object based on two output signals output from the radio wave sensor 10 at two frames FrA and FrB (in other words, two detection points in time) will be described with reference to Figures 5 to 8.

[0051] FIG. 5 shows the transmission wave Tr transmitted by the transmitter 12 in frames FrA and FrB. FIGS. 6 and 7 show the FFT results (relationship between frequency f and spectral intensity amp) obtained by FFT processing of the IF signal generated by mixing the transmission signal with the reception signal received by one of the three reception antennas. FIG. 6 shows the FFT result for frame FrA, and FIG. 7 shows the FFT result for frame FrB. Here, multiple peaks appearing in the FFT result (frequency spectrum) correspond to objects that have reflected the transmission wave Tr. The object detection unit 22 then calculates the time difference between the frequency spectrum in frame FrA and the frequency spectrum in frame FrB to remove frequency components corresponding to stationary objects and obtain only frequency components corresponding to moving objects. FIG. 8 shows the time difference between the frequency spectrum in frame FrA and the frequency spectrum in frame FrB. The peaks in the frequency spectrum shown in FIG. 8 correspond to moving objects.

[0052] Here, the object detection unit 22 outputs three IF signals between the transmitted wave Tr and the three received waves Re received by the three receiving antennas each time the radio wave sensor 10 performs a single transmission / reception operation, and obtains three frequency spectra by performing FFT processing on each of the three IF signals.The object detection unit 22 then obtains the time differences of the three frequency spectra between frames, thereby determining the distances from the three receiving antennas to the moving object, and can determine the three-dimensional position of the moving object using three-point positioning.

[0053] In the present embodiment, the object detection unit 22 designates one of the three or more output signals output from the radio wave sensor 10 at each of the three or more detection time points as a reference output signal, and the other output signals are designated as multiple comparison signals. The object detection unit 22 then determines the distance between the object and the radio wave sensor 10 based on a time difference calculated between each of the multiple comparison signals and the reference output signal. Here, the "time difference" may be the difference between each of the multiple comparison signals and the reference output signal, or the difference between a calculated value calculated from each of the multiple comparison signals and a calculated value calculated from the reference output signal. The present modification employs the latter, and the object detection unit 22 calculates the difference (time difference) between a calculated value (e.g., frequency spectrum) calculated from each of the multiple comparison signals and a calculated value (e.g., frequency spectrum) calculated from the reference output signal for each of the multiple comparison signals.

[0054] The object detection unit 22 detects the position and displacement of an object based on, for example, four pieces of time difference information calculated from five output signals output from the radio wave sensor 10 at each of five detection times.

[0055] 9, the object detection unit 22 defines five consecutive frames Fr0 to Fr4 as one measurement period DF1, performs FFT processing on the three IF signals output from the radio wave sensor 10 in each of the five frames Fr0 to Fr4, and calculates three frequency spectra, storing the calculation results in the storage unit 30. The object detection unit 22 then defines the output signal (IF signal) of the radio wave sensor 10 in the earliest frame Fr0 of the five frames Fr0 to Fr4 as a reference output signal, and the output signal (IF signal) of the radio wave sensor 10 in each of the remaining four frames Fr1 to Fr4 as a comparison signal. The object detection unit 22 then determines the time difference between the frequency spectrum determined from the reference output signal and the frequency spectrum determined from the comparison signal for each of the plurality of comparison signals in frames Fr1 to Fr4.

[0056] Specifically, the object detection unit 22 obtains a frequency spectrum in frame Fr1 for each of three IF signals corresponding to three receiving antennas, calculates a time difference D1 between the frequency spectrum obtained in frame Fr0 and the frequency spectrum obtained in frame Fr1, and determines the three-dimensional position of the object based on the time difference D1. Furthermore, the object detection unit 22 obtains a frequency spectrum in frame Fr2 for each of three IF signals corresponding to three receiving antennas, calculates a time difference D2 between the frequency spectrum obtained in frame Fr0 and the frequency spectrum obtained in frame Fr2, and determines the three-dimensional position of the object based on the time difference D2. Furthermore, the object detection unit 22 obtains a frequency spectrum in frame Fr3 for each of three IF signals corresponding to three receiving antennas, calculates a time difference D3 between the frequency spectrum obtained in frame Fr0 and the frequency spectrum obtained in frame Fr3, and determines the three-dimensional position of the object based on the time difference D3. Furthermore, the object detection unit 22 obtains the frequency spectrum in frame Fr4 for each of the three IF signals corresponding to the three receiving antennas, calculates a time difference D4 between the frequency spectrum obtained in frame Fr0 and the frequency spectrum obtained in frame Fr4, and determines the three-dimensional position of the object based on the time difference D4.

[0057] In this way, the object detection unit 22 calculates the three-dimensional position of each object based on the four time differences D1 to D4, which are calculated using different time intervals. Of the four time differences D1 to D4, the time interval for calculating the time difference D1 is the shortest, and the time interval for calculating the time difference D4 is four times longer than the time interval for calculating the time difference D1. This has the advantage that a moving object with small movements can be detected from the time difference D1 between frames Fr0 and Fr1, and a moving object with large movements can be detected from the time difference D4 between frames Fr0 and Fr4. Here, by adjusting the time intervals of the four time differences D1 to D4, for example, a person's body movement with a relatively small amount of displacement per unit time can be detected from the time differences D1 and D2, and a person's body movement with a relatively large amount of displacement per unit time can be detected from the time differences D3 and D4.

[0058] Furthermore, in this embodiment, for each of frames Fr1 to Fr4 within measurement period DF1, object detection unit 22 calculates only the time difference between the frequency spectrum calculated for that frame and the frequency spectrum calculated for frame Fr0. Therefore, compared to when object detection unit 22 calculates, for each frame, the time difference between the frequency spectrum calculated for that frame and four frequency spectra calculated for the four frames prior to that frame, the amount of processing performed by object detection unit 22 for each frame can be reduced, which has the advantage that processing unit 20 of manipulation recognition system 1 can be implemented by a low-spec computer system.

[0059] When a person 300 is present in the detection area A1 of the radio wave sensor 10 (see FIG. 11A), the transmission wave Tr from the transmitter 12 is reflected by multiple reflecting parts on the body of the person 300. In this case, the receiver 13 receives multiple reception waves Re reflected by multiple parts on the body of the person 300, and the object detection unit 22 performs three-point positioning of parts that are moving among the multiple parts that have reflected the transmission wave Tr, thereby detecting the person 300 as a collection of multiple moving parts. FIG. 10 is a diagram in which points DT1 that represent moving parts of the body of the person 300 are plotted on a three-dimensional space 500 that represents the detection area A1 when the object detection unit 22 detects the person 300 present in the detection area A1.

[0060] Here, the object detection unit 22 performs a clustering process on a plurality of points DT1 corresponding to a plurality of moving body parts, thereby grouping the plurality of points DT1 into one or more clusters. In the example of Fig. 10, the plurality of points DT1 representing a plurality of body parts are grouped into two groups: a cluster CL1 corresponding to the head, shoulders, hands, etc. of the person 300, and a cluster CL2 corresponding to the feet of the person 300. As shown in Fig. 10, when the plurality of points DT1 corresponding to the person 300 are grouped into two clusters CL1 and CL2, the object detection unit 22, for example, determines the position of the center of gravity of each of the clusters CL1 and CL2 and determines the midpoint between the two center of gravity positions to determine the position of the person 300, and stores the position calculation results in the storage unit 30. Furthermore, the object detection unit 22 detects an area surrounded by, for example, an envelope around multiple points DT1 belonging to cluster CL1 as a presence range G1 in which body parts corresponding to cluster CL1 exist, and detects an area surrounded by, for example, an envelope around multiple points DT1 belonging to cluster CL2 as a presence range G1 in which body parts corresponding to cluster CL2 exist. Then, the object detection unit 22 detects the combined range of the presence range G1 of cluster CL1 and the presence range G1 of cluster CL2 as the presence range G1 of person 300. Furthermore, the object detection unit 22 detects the movement of the body part corresponding to cluster CL1 based on the history of the center of gravity position of cluster CL1, and detects the movement of the body part corresponding to cluster CL2 based on the history of the center of gravity position of cluster CL2.

[0061] In this way, when the multiple points DT1 representing the person 300 are grouped into multiple clusters, the object detection unit 22 determines the existence range G1 and center of gravity positions of each of the multiple clusters, and stores the existence range G1 and center of gravity positions of each of the multiple clusters in the storage unit 30. Then, the object detection unit 22 detects the range combining the existence ranges G1 of the multiple clusters as the existence range G1 of the person 300. Furthermore, the object detection unit 22 detects the movement of the body parts corresponding to each of the multiple clusters based on the history of the center of gravity positions of the multiple clusters.

[0062] When multiple points DT1 representing person 300 are detected as one cluster, object detection unit 22 detects the existence range G1 and center of gravity position of the cluster, and stores the existence range G1 and center of gravity position of the cluster in storage unit 30. Then, object detection unit 22 detects the existence range G1 of the cluster as the existence range G1 of person 300, and detects the movement of person 300 based on the history of the center of gravity position of the cluster.

[0063] In this way, the object detection unit 22 further detects the range G1 within which the moving object exists, based on the plurality of output signals output from the radio wave sensor 10 at the plurality of detection points in time.

[0064] When the object detection unit 22 detects a moving object (for example, person 300), it acquires a first movement trajectory of the object, which includes a movement component in the second direction, as operation information for the security device 4.

[0065] An operation detection area is set in advance in which the object detection unit 22 can detect a first movement trajectory that represents the movement of an object (e.g., person 300) for operating the security device 4. The operation detection area is a partial area of ​​the detection area A1, and any action performed in an area of ​​the detection area A1 other than the operation detection area is not detected as an action for operating the security device 4. Fig. 3 shows an example of an operation detection area.

[0066] The operation detection area includes, for example, a first operation detection area DA1 and a second operation detection area DA2. The first operation detection area DA1 is an area whose dimension in the X-axis direction is approximately the same as that of the housing 2 and whose distance from the housing 2 in the Y-axis direction is less than a first distance L1. Movement of the person 300 detected in the first operation detection area DA1 is detected as a touch operation in which the person 300 touches the surface of the housing 2. The second operation detection area DA2 is an area whose dimension in the X-axis direction is larger than that of the first operation detection area DA1 and whose distance from the housing 2 in the Y-axis direction is equal to or greater than the first distance L1 but less than a second distance L2. Movement of the person 300 detected in the second operation detection area DA2 is detected as a gesture operation performed by the person 300 without touching the housing 2. Note that the first distance L1 is preferably a distance of, for example, several centimeters so that touch operations can be detected separately from gesture operations. Furthermore, the second distance L2 is preferably a distance of, for example, 50 cm to 1.5 m so as to avoid erroneously detecting a moving object other than the person 300 performing the gesture operation. When the control method of the security device 4 is set to the gesture control method, the object detection unit 22 only needs to detect the movement of an object in the first operation detection area DA1, which reduces the possibility of erroneously detecting unnecessary movement.

[0067] The actions performed by the person 300 to operate the security device 4 are predetermined, and a second movement trajectory representing the actions to operate the security device 4 is registered in the storage unit 30. The radio wave sensor 10 is housed inside the housing 2, which is permeable to radio waves, and is therefore capable of detecting an object in contact with the surface of the housing 2 as well as an object located at a distance from the surface of the housing 2. Therefore, the radio wave sensor 10 can detect a first movement trajectory in which, for example, the contact position between the person 300's finger and the surface of the housing 2 moves in a second direction when the person 300 places his / her finger on the surface of the housing 2. The radio wave sensor 10 can also detect a first movement trajectory in which a body part of the person 300 located at a distance from the surface of the housing 2 moves in the second direction. The two-dot chain line TR1 in FIG. 2 shows an example of a second movement trajectory registered in the storage unit 30. Circular marks serving as guides for operation positions are displayed in a 3-by-3 arrangement on the surface of the housing 2, and a second movement trajectory in which the marks are traced in a single stroke is stored in the storage unit 30.

[0068] When the object detection unit 22 detects a first movement trajectory, the determination unit 23 determines whether the detected first movement trajectory matches the second movement trajectory stored in the storage unit 30. When the first movement trajectory matches the second movement trajectory, the determination unit 23 outputs determination information indicating that the first movement trajectory matches the second movement trajectory to the output unit 24. Note that when the security device 4 is an electric lock device 4A, the first movement trajectory for switching the electric lock device 4A from a locked state to an unlocked state and the first movement trajectory for switching the electric lock device 4A from an unlocked state to a locked state may be the same movement trajectory or may be different movement trajectories. For example, when the inner end of the two-dot chain line TR1 shown in Fig. 2 is defined as the first end and the outer end as the second end, the trajectory of a finger moving from the second end to the first end along the two-dot chain line TR1 may be defined as the second movement trajectory for switching the electric lock device 4A from the unlocked state to the locked state, and the trajectory of a finger moving from the first end to the second end along the two-dot chain line TR1 may be defined as the second movement trajectory for switching the electric lock device 4A from the locked state to the unlocked state. Note that the second movement trajectory is not limited to the movement of an object as shown in Fig. 2 and can be changed as appropriate.

[0069] When the output unit 24 receives the determination information from the determination unit 23, it outputs a control command to the security device 4 instructing whether or not to execute an alert operation. When the determination information is input from the determination unit 23 to the output unit 24 while the electric lock device 4A, which is the security device 4, has unlocked the door 407, the output unit 24 outputs a lock command to lock the door 407 as a control command to the device control unit 40. When the determination information is input from the determination unit 23 to the output unit 24 while the electric lock device 4A, which is the security device 4, has locked the door 407, the output unit 24 outputs an unlock command to unlock the door 407 as a control command to the device control unit 40.

[0070] The output unit 24 may output a control command based on operation information acquired from at least one of the operation unit 42 and the communication unit 43. When operation information is input to the processing unit 20 from at least one of the operation unit 42 and the communication unit 43, the output unit 24 outputs a control command generated based on the operation information to the device control unit 40.

[0071] The device control unit 40 controls the security device 4 based on the control command output from the output unit 24. When a lock command is input from the output unit 24 while the electric lock device 4A has unlocked the door 407, the device control unit 40 causes the electric lock device 4A to lock the door 407. Furthermore, when an unlock command is input from the output unit 24 while the electric lock device 4A has locked the door 407, the device control unit 40 causes the electric lock device 4A to unlock the door 407.

[0072] In the registration mode, the registration unit 25 performs a registration process of registering the first movement trajectory detected by the object detection unit 22 in the storage unit 30 as a second movement trajectory.

[0073] Here, the operation modes of the manipulation identification system 1 include at least a determination mode and a registration mode.

[0074] The mode setting unit 26 sets the operation mode of the operation identification system 1 to either a determination mode or a registration mode. In the determination mode, the determination unit 23 determines whether or not the first movement trajectory detected by the object detection unit 22 matches the second movement trajectory. In the registration mode, the registration unit 25 performs a registration process to register the first movement trajectory detected by the object detection unit 22 in the storage unit 30 as the second movement trajectory.

[0075] Here, when the first movement trajectory detected by the object detection unit 22 matches the third movement trajectory registered in the storage unit 30, the mode setting unit 26 sets the operation mode to the registration mode. Then, when the registration process by the registration unit 25 ends in the registration mode, the mode setting unit 26 sets the operation mode to the determination mode. Note that in this embodiment, the determination unit 23 determines whether the first movement trajectory detected by the object detection unit 22 matches the second movement trajectory, and also determines whether it matches the third movement trajectory. Then, when the determination unit 23 determines that the first movement trajectory detected by the object detection unit 22 matches the third movement trajectory, the mode setting unit 26 sets the operation mode of the operation identification system 1 to the registration mode.

[0076] The notification unit 41 performs at least one of a process of notifying that the operation mode has been switched from the determination mode to the registration mode and a process of notifying that the registration process has been completed in the registration mode. In this embodiment, the notification unit 41 performs both a process of notifying that the operation mode has been switched from the determination mode to the registration mode and a process of notifying that the registration process has been completed in the registration mode.

[0077] Furthermore, the notification unit 41 performs notification processing using at least one of light and sound. In this embodiment, the notification unit 41 includes a display unit equipped with a light source such as an LED arranged on the housing 2 in a state visible from outside the housing 2. The notification unit 41 performs processing to notify that the operation mode has switched from the determination mode to the registration mode and processing to notify that the registration processing in the registration mode has ended, by turning on, turning off, or blinking the light source.

[0078] (2.1.2) Wiring devices The wiring device 100 includes an operation identification system 1 and a housing 2 that houses the operation identification system 1. The housing 2 can be attached to an installation surface.

[0079] The surface on which the housing 2 is attached is, for example, the surface of a wall 406 that separates the surveillance area 410 from the space outside the surveillance area 410. The housing 2 is preferably installed in a position where the radio wave sensor 10 can easily detect the movement of an object.

[0080] (2.2) Operation explanation The operation of the security system X1 equipped with the operation identification system 1 will be described with reference to Fig. 15 etc. Here, it is assumed that the device setting unit 27 sets the security device 4 to the electric lock device 4A and sets the control method of the security device 4 to the touch control method. Note that the flowchart shown in Fig. 15 merely shows one example of the operation of the security system X1, and the order of processing may be changed as appropriate, and processing may be added or omitted as appropriate.

[0081] The radio wave sensor 10 performs transmission and reception operations at a predetermined cycle, and each time the radio wave sensor 10 performs a transmission and reception operation, the acquisition unit 21 acquires an output signal (IF signal) output from the radio wave sensor 10 (ST1). The acquisition unit 21 acquires, from the radio wave sensor 10, the signal strength of the received waves Re received by each of the three receiving antennas.

[0082] When the acquisition unit 21 acquires an output signal (IF signal) from the radio wave sensor 10, the object detection unit 22 executes a detection step in which it detects a moving object (ST2). In the detection step, the object detection unit 22 performs FFT processing on the output signal (IF signal) acquired by the acquisition unit 21 from the radio wave sensor 10 for each of the three receiving antennas to acquire an FFT result (frequency spectrum) and stores the FFT result in the storage unit 30. Then, the object detection unit 22 calculates the time difference between the FFT results at multiple detection points, and if a moving object (moving object) is present based on the calculation result of the time difference, it calculates the distance from each of the three receiving antennas to the moving object and calculates the three-dimensional position of the moving object using three-point positioning.

[0083] If no moving object is detected in the detection step ST2 (ST3: No), the processing unit 20 ends the process.

[0084] If a moving object is detected in the detection step ST2 (ST3: Yes), the object detection unit 22 executes an operation information acquisition step of acquiring a first movement trajectory representing the movement of the object as operation information performed by the user (ST4).

[0085] When the object detection unit 22 detects the first movement trajectory as operation information, the determination unit 23 determines whether or not the first movement trajectory detected by the object detection unit 22 matches the third movement trajectory (ST5).

[0086] If the first trajectory does not match the third trajectory in step ST5 (ST5: No), the determination unit 23 determines whether the first trajectory detected by the object detection unit 22 matches the second trajectory (ST6).

[0087] If the first movement trajectory matches the second movement trajectory in step ST6 (ST6: Yes), the output unit 24 executes an output step in which it outputs a control command according to the determination result of the determination unit 23 to the device control unit 40 (ST7). The device control unit 40 controls the operation of the security device 4 based on the control command from the output unit 24, and can control the operation of the security device 4 according to the operation content performed by the user. After executing the output step, the processing unit 20 ends the process.

[0088] In addition, if the first movement trajectory does not match the second movement trajectory in step ST6 (ST6: No), the processing unit 20 terminates the processing, thereby reducing the possibility that the security device 4 will be erroneously controlled if it moves differently from the second movement trajectory.

[0089] Furthermore, if the first movement trajectory matches the third movement trajectory in step ST5 (ST5: Yes), the mode setting unit 26 switches the operation mode of the operation identification system 1 from the determination mode to the registration mode. When the mode setting unit 26 switches the operation mode from the determination mode to the registration mode, the processing unit 20 causes the notification unit 41 to notify that the operation mode has switched from the determination mode to the registration mode. The notification unit 41 notifies that the operation mode has switched from the determination mode to the registration mode, for example, by turning on a light source or blinking it for a certain period of time. Based on the notification processing of the notification unit 41, the user can confirm that the operation mode has switched from the determination mode to the registration mode.

[0090] When the operation mode of the operation identification system 1 is set to the registration mode and the user performs a desired operation, the registration unit 25 executes a registration process to register the first movement trajectory detected by the object detection unit 22 as a second movement trajectory in the storage unit 30 (ST18). Then, when the registration process by the registration unit 25 is completed, the processing unit 20 notifies the notification unit 41 that the registration process is completed, for example, by turning off the light source of the notification unit 41 or by blinking it for a certain period of time. Furthermore, when the registration process by the registration unit 25 is completed, the mode setting unit 26 switches the operation mode from the registration mode to the determination mode, and then the processing unit 20 terminates the process.

[0091] The mode setting unit 26 may switch the operation mode from the registration mode to the determination mode in response to a switching operation by the user. For example, when the notification unit 41 notifies that the registration process has been completed, if the user confirms the notification from the notification unit 41 and operates the operation unit 42 to switch the operation mode from the registration mode to the determination mode, the mode setting unit 26 may switch the operation mode from the registration mode to the determination mode.

[0092] The processing unit 20 periodically repeats the processes of steps ST1 to ST8, detects information about an operation performed by a user, and executes processing according to the operation information.

[0093] (3) Variations The above embodiment is merely one of various embodiments of the present disclosure, and various modifications can be made to the above embodiment depending on the design and the like as long as the object of the present disclosure can be achieved.

[0094] Modifications of the above embodiment are listed below. The modifications described below can be applied in appropriate combinations.

[0095] The execution entity of the operation identification system 1 in the present disclosure includes a computer system. The computer system is primarily composed of a processor and memory as hardware. The functions of the operation identification system 1 in the present disclosure are realized by the processor executing a program stored in the memory of the computer system. The program may be pre-stored in the memory of the computer system, provided via a telecommunications line, or provided in a non-transitory recording medium readable by the computer system, such as a memory card, optical disk, or hard disk drive. The processor of the computer system is composed of one or more electronic circuits including a semiconductor integrated circuit (IC) or a large-scale integrated circuit (LSI). The integrated circuits, such as ICs and LSIs, are referred to by different names depending on the degree of integration, and include integrated circuits called system LSIs, very large-scale integrations (VLSIs), and ultra-large-scale integrations (ULSIs). Furthermore, field-programmable gate arrays (FPGAs), which are programmed after the LSI is manufactured, or logic devices that allow the reconfiguration of internal connections or internal circuit partitions of the LSI, can also be used as processors. The electronic circuits may be integrated into one chip or distributed across multiple chips. The chips may be integrated into one device or distributed across multiple devices. The computer system referred to here includes a microcontroller having one or more processors and one or more memories. Therefore, the microcontroller is also composed of one or more electronic circuits including a semiconductor integrated circuit or a large-scale integrated circuit.

[0096] Furthermore, it is not essential for the operation identification system 1 that multiple functions are concentrated within a single housing 2, and the components of the operation identification system 1 may be distributed across multiple housings.

[0097] In the above embodiment, the radio wave sensor 10 includes one transmitting antenna and three receiving antennas, but the number of receiving antennas may be two or four or more.

[0098] In addition, in the radio wave sensor 10, the antenna used to transmit the transmission wave Tr and the antenna used to receive the reception wave Re may be the same antenna (hereinafter referred to as a "shared antenna"). In other words, the transmission wave Tr may be transmitted from the shared antenna, and the reception wave Re corresponding to the transmission wave Tr may be received by the shared antenna.

[0099] In the above embodiment, one transmission / reception operation is performed in one frame Fr, but multiple transmission / reception operations may be performed in one frame Fr. In this case, the object detection unit 22 may detect the position of the object based on a representative value (e.g., an average value) of the IF signal output from the radio wave sensor 10 in multiple transmission / reception operations.

[0100] In the above embodiment, the object detection unit 22 detects the first movement trajectory representing the movement of the hand 302, but it may also acquire a first movement trajectory representing the movement of the feet, the movement of the head, or the like.

[0101] In the above embodiment, the housing 2 of the wiring device 100 including the operation identification system 1 is attached to the wall 406 of the facility 400. However, the housing 2 may also be attached to the ceiling of the facility 400. In this case, the first direction in which the radio wave sensor 10 transmits radio waves is along the Z-axis direction, and the second direction intersecting with the first direction is along a direction perpendicular to the first direction. Note that the direction perpendicular to the first direction is not limited to a direction intersecting with the first direction at a right angle, and may be, for example, a direction intersecting with the first direction at an angle between 70 degrees and 110 degrees. The object detection unit 22 can acquire the first movement trajectory by tracing the movement of the person 300 in the second direction.

[0102] In the above embodiment, the operation identification system 1 includes both the operation unit 42 that outputs operation information according to a user's operation and the communication unit 43 that receives operation information transmitted from the external device 80, but it is not essential that the operation identification system 1 include both the operation unit 42 and the communication unit 43. The operation identification system 1 may include at least one of the operation unit 42 and the communication unit 43. Furthermore, the operation unit 42 and the communication unit 43 are not essential components of the operation identification system 1 and can be omitted as appropriate.

[0103] In the above embodiment, the object detection unit 22 detects a first movement trajectory in which the part of the person 300 that is touching the surface of the housing 2 moves in the second direction, but it may also detect a first movement trajectory in which the part of the body of the person 300 moves while away from the surface of the housing 2.

[0104] In this case, the object detection unit 22 detects the movement of an object (e.g., a person) in both the first manipulation detection area DA1 and the second manipulation detection area DA2. The object detection unit 22 detects the movement of an object present in the second manipulation detection area DA2 in three dimensions, and therefore the movement trajectory of the object present in the second manipulation detection area DA2 may include a movement component in the first direction and a movement component in the second direction intersecting with the first direction. That is, the first movement trajectory may include a movement component in the second direction intersecting with the first direction and a movement component in the first direction. The object detection unit 22 can detect the three-dimensional position of an object present in the detection area A1, and therefore can continuously detect the movement of the object to obtain a first movement trajectory including a movement component in the second direction intersecting with the first direction and a movement component in the first direction. In this way, the object detection unit 22 detects the three-dimensional movement of an object located at a position away from the surface of the housing 2 as a first movement trajectory, and therefore, the security device 4 can be operated by performing more complex movements compared to the first movement trajectory which has only a movement component in the second direction.

[0105] Here, the process by which the object detection unit 22 detects a first movement trajectory indicating the movement of the arm of the person 300 when the person 300 present in the second operation detection area DA2 performs an action to unlock or lock the electric lock device 4A, which is the security device 4, will be described with reference to Figures 11A to 13B.

[0106] 11A is a top view of a person 300 in the second operation detection area DA2 with his or her hands down, and FIG. 11B shows a diagram in which multiple points DT1 detected by the object detection unit 22 in this state are plotted on the XY plane. In this state, the object detection unit 22 detects the person 300 as one cluster B1. If the amount of change in the position of the cluster B1 detected in the second operation detection area DA2 is equal to or less than a predetermined threshold, the object detection unit 22 determines that the person 300 is standing in the second operation detection area DA2 and stores the position of the center of gravity of the cluster B1 in the storage unit 30 as the position of the person 300.

[0107] 12A is a top view of a state in which a person 300 present in the second operation detection area DA2 has his / her hand thrust forward, and FIG. 12B shows a diagram in which a plurality of points DT1 detected by the object detection unit 22 in this state are plotted on an XY plane. In this state, the object detection unit 22 detects a cluster B11 corresponding to the torso 301 of the person 300 and a cluster B12 corresponding to the hand 302. Here, the cluster B11 corresponding to the torso 301 is larger than the cluster B12 corresponding to the hand 302, so the object detection unit 22 determines that the cluster B11 corresponds to the torso 301 and the cluster B12 corresponds to the hand 302. The object detection unit 22 also detects a first trajectory based on the movement of the tip of the hand 302 that is closest to the radio wave sensor 10.

[0108] 13A is a diagram showing a state in which person 300 present in second operation detection area DA2 has moved hand 302 to the right as viewed from above, and Fig. 13B shows a diagram in which multiple points DT1 detected by object detection unit 22 in this state are plotted on the XY plane. For example, of the multiple points DT1 belonging to cluster B12, object detection unit 22 detects the movement of point DT1 that is closest to radio wave sensor 10 as the first movement trajectory of hand 302, and therefore detects the trajectory of hand 302 of person 300 moving to the right as the first movement trajectory.

[0109] Furthermore, when the device setting unit 27 sets the load control method to the moving object detection control method based on the setting information input from the operation unit 42 or the communication unit 43, when the object detection unit 22 detects the presence of a moving object, the output unit 24 may output a control command to the security device 4 according to the detection result of the object detection unit 22.

[0110] In the above embodiment, a plurality of second movement trajectories may be registered in the storage unit 30. The plurality of second movement trajectories may include a plurality of movement trajectories corresponding to a plurality of operations on one security device 4, respectively. Furthermore, the security system X1 may include a plurality of security devices 4. In this case, it is sufficient that a second movement trajectory corresponding to each of the plurality of security devices 4 is registered in the storage unit 30. Furthermore, the storage unit 30 may register one second movement trajectory for each of the plurality of security devices 4, or may register a plurality of second movement trajectories.

[0111] In the above embodiment, the notification unit 41 performs both the process of notifying that the operation mode has switched from the determination mode to the registration mode and the process of notifying that the registration process in the registration mode has been completed, but it may perform only one of the two notifications. Also, although the notification unit 41 is a display unit equipped with a light source such as an LED, the configuration of the notification unit 41 can be modified as appropriate. The notification unit may also include a sounding unit that notifies by sound. The sounding unit is, for example, a buzzer that outputs a notification sound, or a speaker that outputs a voice message, etc. The notification unit 41 may perform the notification process by, for example, outputting a notification sound from a buzzer, etc., or by outputting a voice message from a speaker, etc.

[0112] (summary) The above-described embodiments and the like disclose the following aspects.

[0113] A first embodiment of an operation identification system (1) includes a radio wave sensor (10), an object detection unit (22), a determination unit (23), and an output unit (24). The radio wave sensor (10) transmits a transmission wave, which is a frequency-modulated radio wave, into real space at each of a plurality of detection times, and upon receiving a wave reflected by an object of the transmission wave, outputs an output signal based on the transmission wave and the reflected wave. The object detection unit (22) detects a first movement trajectory of the object, which includes at least a movement component in a second direction intersecting with a first direction, which is the transmission direction of the radio wave, based on the plurality of output signals output from the radio wave sensor (10) at the plurality of detection times. The determination unit (23) determines whether the first movement trajectory of the object detected by the object detection unit (22) matches a second movement trajectory registered in a storage unit (30). The output unit (24) outputs a control command to the security device (4) capable of performing security operations including at least one of preventing intrusion into the security target area and monitoring, instructing the security device (4) whether or not to perform security operations depending on the determination result of the determination unit (23).

[0114] According to this embodiment, it is possible to realize an operation identification system (1) that can operate a security device (4) by the movement of an object in a second direction that intersects with the transmission direction (first direction) of radio waves.

[0115] The manipulation identification system (1) of the second aspect is the first aspect, further comprising a housing (2) that houses the radio wave sensor (10). The first movement trajectory of the object includes at least one of a movement trajectory in which a contact position where a part of the object contacts the surface of the housing (2) moves in the second direction, and a movement trajectory in which the object moves in the second direction while separated from the surface of the housing (2).

[0116] According to this aspect, the first movement trajectory can be detected as a movement trajectory in which the contact position where a part of the object comes into contact with the surface of the housing (2) moves in the second direction, and / or a movement trajectory in which the object moves in the second direction while separated from the surface of the housing (2).

[0117] In the third aspect of the operation identification system (1), in the first or second aspect, the first movement trajectory of the object includes a movement component in a second direction intersecting the first direction and a movement component in the first direction.

[0118] According to this aspect, it is possible to detect more complex object movement than when the first movement trajectory includes only a movement component in the second direction intersecting with the first direction.

[0119] The operation identification system (1) of a fourth aspect is the same as that of any one of the first to third aspects, and further includes a registration unit (25) and a mode setting unit (26). The mode setting unit (26) sets the operation mode of the operation identification system (1) to either a determination mode or a registration mode. In the determination mode, the determination unit (23) determines whether or not a first movement trajectory detected by the object detection unit (22) matches a second movement trajectory. In the registration mode, the registration unit (25) performs a registration process to register the first movement trajectory detected by the object detection unit (22) as a second movement trajectory in the storage unit (30). When the first movement trajectory detected by the object detection unit (22) matches the third movement trajectory registered in the storage unit (30), the mode setting unit (26) sets the operation mode to the registration mode.

[0120] According to this aspect, the mode setting unit (26) sets the operation mode of the operation identification system (1) to the registration mode, whereby the first movement trajectory detected by the object detection unit (22) can be registered in the memory unit (30) as the second movement trajectory.

[0121] The operation identification system (1) of the fifth aspect is the fourth aspect, and further includes a notification unit (41). The notification unit (41) can notify that the registration process by the registration unit (25) has ended in the registration mode.

[0122] According to this aspect, the user can confirm that the registration process has been completed based on the notification from the notification unit (41).

[0123] The operation identification system (1) of a sixth aspect is the system of any one of the first to fifth aspects, further including at least one of an operation unit (42) that outputs operation information according to a user's operation and a communication unit (43) that receives operation information transmitted from an external device (80). The output unit (24) outputs a control command based on the operation information acquired from at least one of the operation unit (42) and the communication unit (43).

[0124] According to this aspect, the security device (4) can be operated using the operation unit (42) or the external device (80).

[0125] The operation identification system (1) of the seventh aspect is in any one of the first to sixth aspects, and further includes a device setting unit (27) that sets at least one of the attributes of the security device (4) and the control mode of the security device (4).

[0126] According to this aspect, it is possible to set at least one of the attributes of the security device (4) and the control mode of the security device (4).

[0127] The operation identification system (1) of the eighth aspect is the seventh aspect, further including at least one of an operation unit (42) that outputs setting information in response to a user operation and a communication unit (43) that receives setting information transmitted from an external device (80). The device setting unit (27) performs setting based on the setting information acquired from at least one of the operation unit (42) and the communication unit (43).

[0128] According to this aspect, the setting information can be set using the operation unit (42) or the external device (80).

[0129] The operation identification system (1) of a ninth aspect is in any one of the first to eighth aspects, and further includes a device control unit (40) that controls the security device (4) based on a control command output from the output unit (24).

[0130] According to this embodiment, the security device (4) can be controlled based on the control command from the output unit (24).

[0131] A security system (X1) of a tenth aspect includes the operation identification system (1) according to any one of the first to ninth aspects and a security device (4).

[0132] According to this embodiment, it is possible to realize a security system (X1) that can operate the security device (4) by the movement of an object in a second direction that intersects with the transmission direction (first direction) of the radio wave.

[0133] In the security system (X1) of the eleventh aspect, in the tenth aspect, the security equipment (4) includes at least one of an electric locking device (4A) that locks or unlocks a door provided at an entrance / exit of the monitored area, and an intrusion detection system (4B) that detects the intrusion of a person into the monitored area.

[0134] According to this embodiment, the movement of an object in a second direction intersecting the radio wave transmission direction (first direction) can operate a security device (4) including at least one of an electric lock device (4A) and an intrusion detection system (4B).

[0135] A wiring device (100) of a twelfth aspect includes the operation identification system (1) according to any one of the first to ninth aspects and a housing (2) that houses the operation identification system (1). The housing (2) is attachable to an installation surface (406).

[0136] According to this embodiment, it is possible to realize a wiring device (100) that can operate a security device (4) by the movement of an object in a second direction that intersects with the transmission direction (first direction) of radio waves.

[0137] Not limited to the above aspects, various configurations (including modified examples) of the operation identification system (1) according to the above embodiment can be embodied as an operation identification method, a (computer) program, or a non-transitory recording medium on which a program is recorded, etc.

[0138] The configurations according to the second to ninth aspects are not essential for the operation identification system (1) and may be omitted as appropriate. The configuration according to the eleventh aspect is not essential for the security system (X1) and may be omitted as appropriate. [Explanation of symbols]

[0139] 1 Operation Identification System 2. Case 4. Security equipment 4A Electric Lock Device 4B Intrusion Detection System 10 Radio wave sensor 22 Object detection unit 23 Judgment section 24 Output section 25 Registration Department 26 Mode setting section 27 Device setting section 30 Storage section 40 Equipment control section 41 Notification Department 42 Operation section 43 Communications Department 80 External equipment 100 Wiring devices 406 Wall (construction surface) X1 Security System

Claims

1. a radio wave sensor that transmits a transmission wave, which is a frequency-modulated radio wave, into a real space at each of a plurality of detection points, and that outputs an output signal based on the transmission wave and the reflected wave upon receiving a wave of the transmission wave reflected by an object; an object detection unit that detects a first movement trajectory of the object, the first movement trajectory including at least a movement component in a second direction intersecting with a first direction that is a transmission direction of the radio waves, based on the plurality of output signals output from the radio wave sensor at the plurality of detection points in time; a determination unit that determines whether the first movement trajectory detected by the object detection unit matches a second movement trajectory registered in a storage unit; an output unit that outputs a control command to a security device capable of performing a security operation including at least one of preventing an intrusion into a security target area and monitoring the area, instructing the security device whether or not to perform the security operation in accordance with the determination result of the determination unit; Operational Identification System.

2. Further comprising a housing for accommodating the radio wave sensor, the first movement trajectory includes at least one of a movement trajectory along which a contact position where a part of the object comes into contact with the surface of the housing moves in the second direction, and a movement trajectory along which the object moves in the second direction while being separated from the surface of the housing. The operation identification system according to claim 1 .

3. the first movement trajectory includes a movement component in the second direction intersecting the first direction and a movement component in the first direction; The operation identification system according to claim 1 .

4. The device further includes a registration unit and a mode setting unit, the mode setting unit sets the operation mode of the operation identification system to either a determination mode or a registration mode; In the determination mode, the determination unit determines whether or not the first movement trajectory detected by the object detection unit matches the second movement trajectory; In the registration mode, the registration unit performs a registration process in which the first movement trajectory detected by the object detection unit is registered in the storage unit as the second movement trajectory; when the first movement trajectory detected by the object detection unit matches a third movement trajectory registered in the storage unit, the mode setting unit sets the operation mode to the registered mode. The operation identification system according to claim 1 .

5. A notification unit is further provided, the notification unit is capable of notifying that the registration process by the registration unit has been completed in the registration mode. The operation identification system according to claim 4 .

6. The device further includes at least one of an operation unit that outputs operation information according to a user's operation and a communication unit that receives operation information transmitted from an external device, the output unit outputs the control command based on the operation information acquired from at least one of the operation unit and the communication unit. The operation identification system according to claim 1 .

7. further comprising a device setting unit for setting at least one of the attributes of the security device and the control mode of the security device; The operation identification system according to claim 1 .

8. The device further includes at least one of an operation unit that outputs setting information in response to a user's operation and a communication unit that receives setting information transmitted from an external device, the device setting unit performs setting based on the setting information acquired from at least one of the operation unit and the communication unit. The operation identification system according to claim 7 .

9. further comprising a device control unit that controls the security device based on the control command output from the output unit; The operation identification system according to claim 1 .

10. An operation identification system according to any one of claims 1 to 9; The security device. Security system.

11. The security device includes: an electric locking device that locks or unlocks a door provided at an entrance or exit of the security target area; an intrusion detection system that detects intrusion of a person into the surveillance area; 11. The security system of claim 10.

12. An operation identification system according to any one of claims 1 to 9; a housing that houses the operation identification system; The housing is attachable to a construction surface. Wiring equipment.

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