Detection system, mobile terminal, inference device, and learning device

Abstract

The present invention provides a detection system, a portable terminal, an inference device, and a learning device that can accurately detect when a user leaves or returns to an elevator, by installing a device that emits wireless signals in the elevator car. [Solution] In the detection system 1, the mobile terminal 30 held by the user is equipped with multiple reception determination units, a state identification unit, and an outing detection unit. The state identification unit determines that the car is detected when the reception determination unit does not determine whether a wireless signal H is received from a transmitter 20 installed at one of the landings 6 where the car 2, which moves up and down in the elevator shaft 4 formed in the building 3, stops, and the reception determination unit continuously determines for a first hour that a wireless signal C is received from a transmitter 10 installed in the car 2. After the car is detected, the outing detection unit detects that the user of the mobile terminal has left the building when the reception determination unit determines that a wireless signal H is received, without the reception determination unit determining whether a wireless signal C has been received.

Description

Technical Field

[0001] The present disclosure relates to a detection system, a mobile terminal, an inference device, and a learning device.

Background Art

[0002] Patent Document 1 describes a device for determining the state of a moving object. The device described in Patent Document 1 includes two antennas. An RFID tag is attached to the moving object. Based on the order in which the two antennas detect the RFID tag, the direction in which the moving object has passed is determined.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the device described in Patent Document 1, the antennas for performing wireless communication are always arranged at the same position. Therefore, for example, it cannot be applied when one of the antennas is provided in an elevator car.

[0005] The present disclosure has been made to solve the above problems. The object of the present disclosure is to provide a detection system that can accurately detect the going out or returning home of a user after providing a device that emits a wireless signal in an elevator car, and a mobile terminal, an inference device, and a learning device for realizing such a function in the system.

Means for Solving the Problems

[0006] The detection system according to this disclosure comprises a car that moves in an elevator shaft formed in a building, a first transmitter provided in the car that emits a first wireless signal, a second transmitter provided in a landing leading to an entrance of the building that emits a second wireless signal, and a portable terminal capable of receiving the first and second wireless signals. The portable terminal comprises a first reception determination unit that determines whether or not the first wireless signal has been received, a second reception determination unit that determines whether or not the second wireless signal has been received, a state determination unit that identifies the car as detected when the second reception determination unit does not determine that the second wireless signal has been received and the first reception determination unit continues to determine that the first wireless signal has been received for a first time, and an outing detection unit that detects the user of the portable terminal leaving the building when the state determination unit identifies the car as detected and the second reception determination unit determines that the second wireless signal has been received without the first reception determination unit determining that the first wireless signal has not been received.

[0007] The detection system relating to this disclosure comprises a car that moves in an elevator shaft formed in a building, a first transmitter provided in the car that emits a first wireless signal, a second transmitter provided in a landing leading to an entrance of the building that emits a second wireless signal, and a portable terminal capable of receiving the first wireless signal and the second wireless signal. The mobile terminal includes a first reception determination unit that determines whether or not a first radio signal has been received, a second reception determination unit that determines whether or not a second radio signal has been received, a state determination unit that determines that both signals are detected when the second reception determination unit determines that the second radio signal has been received and then the first reception determination unit determines that the first radio signal has been received, and when the first reception determination unit determines that the first radio signal has been received and then the second reception determination unit determines that the second radio signal has been received before that determination continues for a first hour, and a return-to-home detection unit that detects the return of the mobile terminal user when, after the state determination unit has determined that both signals are detected, the second reception determination unit determines that the second radio signal has not been received and then the first reception determination unit determines that the first radio signal has been received for a second hour without the second reception determination unit determining that the second radio signal has been received.

[0008] The mobile terminal relating to this disclosure is a mobile terminal capable of receiving a first wireless signal emitted from a first transmitter installed in a car moving in an elevator shaft formed in a building, and a second wireless signal emitted from a second transmitter installed in a landing leading to an entrance of the building. The mobile terminal comprises a first reception determination unit that determines whether or not the first wireless signal has been received, a second reception determination unit that determines whether or not the second wireless signal has been received, a state determination unit that identifies the car detection state when the second reception determination unit does not determine that the second wireless signal has been received and the first reception determination unit continues to determine that the first wireless signal has been received for a first time, and an outing detection unit that detects the user leaving the building when, after the state determination unit has identified the car detection state, the first reception determination unit does not determine that the first wireless signal has not been received and the second reception determination unit determines that the second wireless signal has been received.

[0009] The mobile terminal relating to this disclosure is a mobile terminal capable of receiving a first wireless signal emitted from a first transmitter installed in a car that moves in an elevator shaft formed in a building, and a second wireless signal emitted from a second transmitter installed in a landing leading to an entrance or exit of the building. The mobile terminal includes: a first reception determination unit that determines whether or not a first radio signal has been received; a second reception determination unit that determines whether or not a second radio signal has been received; a state determination unit that determines that both signals are detected when the second reception determination unit determines that a second radio signal has been received, and then the first reception determination unit determines that a first radio signal has been received, and then the second reception determination unit determines that a second radio signal has been received, before the determination by the first reception determination unit continues for a first hour; and a return-to-home detection unit that detects the user's return home when, after the state determination unit has determined that both signals are detected, the second reception determination unit determines that a second radio signal has not been received, and then the first reception determination unit determines that a first radio signal has been received for a second hour without the second reception determination unit determining that a second radio signal has been received.

[0010] The detection system relating to this disclosure comprises a car that moves in an elevator shaft formed in a building, a first transmitter provided in the car that emits a first radio signal by radio waves, a second transmitter provided in a landing leading to an entrance of the building that emits a second radio signal by radio waves, and a mobile terminal. The mobile terminal comprises a communication unit that receives radio waves emitted by the first transmitter and radio waves emitted by the second transmitter, a period identification unit that identifies a first start time and a first end time of the period during which the first radio signal was received and a second start time and a second end time of the period during which the second radio signal was received, based on the radio wave reception results by the communication unit, and an outing detection unit that detects the outing of the mobile terminal user if the first start time is earlier than the second start time and the first end time is later than the second start time, or if the difference between the first end time and the second end time is within three hours. The third hour is the time from when the elevator car doors begin closing at the landing until the car starts moving away from the landing after the doors have fully closed.

[0011] The detection system relating to this disclosure comprises a car that moves in an elevator shaft formed in a building, a first transmitter provided in the car that emits a first radio signal by radio waves, a second transmitter provided in a landing leading to an entrance of the building that emits a second radio signal by radio waves, and a mobile terminal. The mobile terminal comprises a communication unit that receives radio waves emitted by the first transmitter and radio waves emitted by the second transmitter, a period identification unit that identifies a first start time and a first end time of the period during which the first radio signal was received and a second start time and a second end time of the period during which the second radio signal was received, based on the radio wave reception results by the communication unit, and a return-to-home detection unit that detects the return of the mobile terminal user if the first start time is earlier than the second end time and the first end time is later than the second end time, or if the second start time is earlier than the first start time and the difference between the first start time and the second start time is within 3 hours. The third hour is the time from when the elevator car doors begin closing at the landing until the car starts moving away from the landing after the doors have fully closed.

[0012] The inference device relating to this disclosure comprises a data acquisition unit that acquires inference data, and an inference unit that uses a trained model for inferring from the inference data that a user of a mobile terminal has left the house, and outputs determination data indicating whether or not the user has left the house from the inference data acquired by the data acquisition unit. The inference data includes the reception results of radio waves emitted by a first transmitter and radio waves emitted by a second transmitter by a mobile terminal. The first transmitter is installed in a car that moves along an elevator shaft formed in a building. The second transmitter is installed in a landing leading to an entrance or exit of a building.

[0013] The inference device relating to this disclosure comprises a data acquisition unit that acquires inference data, and an inference unit that uses a trained model for inferring from the inference data that a user of a mobile terminal has returned home, to output determination data indicating whether or not the user has returned home from the inference data acquired by the data acquisition unit. The inference data includes the reception results of radio waves emitted by a first transmitter and radio waves emitted by a second transmitter by a mobile terminal. The first transmitter is installed in a car that moves in an elevator shaft formed in a building. The second transmitter is installed in a landing leading to an entrance or exit of a building.

[0014] The learning device relating to this disclosure comprises a data acquisition unit that acquires training data, and a model generation unit that uses the training data acquired by the data acquisition unit to generate a trained model for inferring from the training data whether a user of a mobile terminal has left or returned home. The training data includes the results of receiving radio waves emitted by a first transmitter and the results of receiving radio waves emitted by a second transmitter by a mobile terminal. The first transmitter is installed in a car that moves along an elevator shaft formed in a building. The second transmitter is installed in a landing leading to an entrance or exit of a building.

[0015] The learning device relating to this disclosure includes a data acquisition unit that acquires learning data including the reception results of radio waves emitted by a first transmitter and a second transmitter by a mobile terminal, and determination data indicating whether or not the user of the mobile terminal has gone out; and a model generation unit that uses the learning data acquired by the data acquisition unit to generate a trained model for inferring that the user has gone out from the reception results of radio waves emitted by the first transmitter and the second transmitter by the mobile terminal. The first transmitter is installed in a car that moves along an elevator shaft formed in a building. The second transmitter is installed in a landing leading to an entrance or exit of a building.

[0016] The learning device relating to this disclosure includes a data acquisition unit that acquires learning data including the reception results of radio waves emitted by a first transmitter and a second transmitter by a mobile terminal, and determination data indicating whether or not the user of the mobile terminal has returned home; and a model generation unit that uses the learning data acquired by the data acquisition unit to generate a trained model for inferring that the user has returned home from the reception results of radio waves emitted by the first transmitter and the second transmitter by the mobile terminal. The first transmitter is installed in a car that moves along an elevator shaft formed in a building. The second transmitter is installed in a landing leading to an entrance or exit of a building.

[0017] The detection system described herein comprises a car that moves along an elevator shaft, a transmitter provided on the car that emits a wireless signal, a control device that controls the movement of the car, a server device that can communicate with the control device, and a mobile terminal that can communicate with the server device. The control device comprises a position detection unit that detects the position of the car, and a position transmission unit that transmits position information indicating the position detected by the position detection unit to the server device. The mobile terminal comprises a reception determination unit that determines whether or not a wireless signal has been received, and a time transmission unit that transmits time information indicating the time when the reception determination unit determined that a wireless signal had been received to the server device. The server device comprises a detection unit that detects when the user of the mobile terminal leaves or returns home based on the position information from the control device and the time information from the mobile terminal.

[0018] The detection system according to the present disclosure includes a car that moves in an elevator shaft, a transmission device provided in the car that emits a wireless signal, a control device that controls the movement of the car, a server device that can communicate with the control device, and a mobile terminal that can communicate with the server device. The control device includes a position detection unit that detects the position of the car and a position transmission unit that transmits position information indicating the position detected by the position detection unit to the server device. The server device transfers the position information from the control device to the mobile terminal. The mobile terminal includes a reception determination unit that determines whether or not a wireless signal is received, and a detection unit that detects the going out or coming home of the user of the mobile terminal based on the time information indicating the time when the reception determination unit determines that a wireless signal has been received and the position information from the server device.

[0019] The detection system according to the present disclosure includes a car that moves in an elevator shaft, a control device that controls the movement of the car, a transmission device provided in the car that emits a wireless signal, and a mobile terminal. The control device includes a position detection unit that detects the position of the car. The mobile terminal includes a reception unit that receives a wireless signal emitted by the transmission device, and a detection unit that detects the going out or coming home of the user of the mobile terminal based on the wireless signal received by the reception unit. The wireless signal emitted by the transmission device includes position information indicating the position detected by the position detection unit.

Advantages of the Invention

[0020] In the detection system according to the present disclosure, by providing a device that emits a wireless signal in the elevator car, it is possible to accurately detect the going out or coming home of the user.

Brief Description of the Drawings

[0021] [Figure 1] It is a diagram showing an example of the detection system in Embodiment 1. [Figure 2] It is a diagram showing an example of the mobile terminal in Embodiment 1. [Figure 3] It is a flowchart showing an example of the operation of the mobile terminal. [Figure 4] It is a flowchart showing an example of the operation of the mobile terminal. [Figure 5]This is a diagram showing an example of the transition of the state specified by the state specifying unit. [Figure 6] This is a diagram showing another example of the mobile terminal in Embodiment 1. [Figure 7] This is a flowchart showing another operation example of the mobile terminal. [Figure 8] This is a diagram showing an example of the reception result of radio waves stored in the storage unit. [Figure 9] This is a diagram showing an example of the inference device. [Figure 10] This is a flowchart showing an operation example of the inference device. [Figure 11] This is a diagram showing an example of the learning device. [Figure 12] This is a diagram showing an example of the neural network applied to the learning device. [Figure 13] This is a flowchart showing an operation example of the learning device. [Figure 14] This is a diagram showing another example of the detection system in Embodiment 1. [Figure 15] This is a diagram showing another example of the mobile terminal. [Figure 16] This is a diagram showing another example of the mobile terminal. [Figure 17] This is a diagram showing another example of the detection system in Embodiment 1. [Figure 18] This is a diagram showing another example of the mobile terminal. [Figure 19] This is a diagram showing an example of the hardware resources of the mobile terminal. [Figure 20] This is a diagram showing another example of the hardware resources of the mobile terminal.

Embodiments for Carrying Out the Invention

[0022] Hereinafter, a detailed description will be given with reference to the drawings. Redundant descriptions will be appropriately simplified or omitted. In each figure, the same reference numerals indicate the same or corresponding parts.

[0023] Embodiment 1. Figure 1 shows an example of the detection system 1 in Embodiment 1. The detection system 1 shown in Figure 1 comprises a cage 2, a transmitter (first transmitter) 10, a transmitter (second transmitter) 20, and a portable terminal 30.

[0024] The elevator car 2 moves up and down within the elevator shaft 4 formed in the building 3. The elevator shaft 4 is a vertically extending space formed in the building 3. The control device 5 controls the movement of the elevator car 2. Controlled by the control device 5, the elevator car 2 stops at multiple landings 6 within the building 3.

[0025] The transmitter 10 is installed in the elevator car 2. For example, the transmitter 10 is a beacon. The transmitter 10 emits a radio signal (first radio signal) in a specific frequency band. Hereinafter, the radio signal emitted from the transmitter 10 will also be referred to as "radio signal C". Radio signal C includes, for example, identification information for identifying the transmitter 10. Since the transmitter 10 is installed in the elevator car 2, it moves up and down in the elevator shaft 4 together with the elevator car 2.

[0026] The transmitter 20 is installed at one of the landings 6 where the elevator car 2 stops. For example, the transmitter 20 is a beacon. The transmitter 20 emits a radio signal (second radio signal) in a specific frequency band. Hereinafter, the radio signal emitted from the transmitter 20 will also be referred to as "radio signal H". Radio signal H includes, for example, identification information for identifying the transmitter 20.

[0027] In the following, when it is necessary to distinguish the landing 6 equipped with the transmitter 20 from other landings 6, this landing, i.e., the landing equipped with the transmitter 20, will also be referred to as "landing 6L". Landing 6L is a landing that leads to entrance 3a of building 3. That is, people who board the elevator car 2 to leave building 3 will generally get off the elevator car 2 at landing 6L and pass through entrance 3a. People who enter building 3 from outside and return to their rooms by riding the elevator car 2 will generally pass through entrance 3a and board the elevator car 2 from landing 6L. As an example, landing 6L is a landing located on the lobby floor of building 3.

[0028] The mobile terminal 30 is a device owned by the user. The mobile terminal 30 is, for example, a smartphone. The mobile terminal 30 is capable of receiving wireless signals C and H. Preferably, the mobile terminal 30 has an application specific to this detection system 1 pre-installed. The user can download this application to the mobile terminal 30 by accessing the website of the maintenance company that manages the elevator from the mobile terminal 30. In the following description, this application will also be referred to as "Application A".

[0029] Figure 2 shows an example of a mobile terminal 30 in Embodiment 1. The mobile terminal 30 includes, for example, a communication unit 31, a reception determination unit 32 (first reception determination unit), a reception determination unit 33 (second reception determination unit), a status identification unit 34, an outing detection unit 35, an return-to-home detection unit 36, and an output unit 37.

[0030] The communication unit 31 has the function of receiving radio waves emitted by the transmitting device 10 and the function of receiving radio waves emitted by the transmitting device 20.

[0031] The reception determination unit 32 determines whether or not the wireless signal C has been received. The reception determination unit 32 makes this determination, that is, whether or not the wireless signal C has been received from the transmitting device 10, based on the radio waves received by the communication unit 31 from the transmitting device 10. For example, the reception determination unit 32 determines that the wireless signal C has been received from the transmitting device 10, i.e., that the wireless signal C has been received, if the value indicating the strength of the radio waves received by the communication unit 31 from the transmitting device 10 is equal to or greater than a first threshold. The reception determination unit 32 determines that the wireless signal C has not been received from the transmitting device 10, i.e., that the wireless signal C has not been received, if the value indicating the strength of the radio waves received by the communication unit 31 from the transmitting device 10 is less than the first threshold. The first threshold is set in advance. If the communication unit 31 has not received any radio waves from the transmitting device 10, the reception determination unit 32 determines that the wireless signal C has not been received from the transmitting device 10.

[0032] When the transmitting device 10 emits discrete radio waves such as a pulse train, the reception determination unit 32 may use the instantaneous value of the radio wave intensity received by the communication unit 31 from the transmitting device 10 as a value indicating the intensity of the radio waves, or it may use a value obtained by smoothing the said instantaneous value.

[0033] As another example, the reception determination unit 32 may determine that the wireless signal C has been received from the transmitting device 10 if the value indicating the strength of the radio waves received by the communication unit 31 from the transmitting device 10 remains at or above a first threshold for a certain period of time. The reception determination unit 32 may also determine that the wireless signal C has not been received from the transmitting device 10 if the value indicating the strength of the radio waves received by the communication unit 31 from the transmitting device 10 is less than the first threshold, or if the state in which the value remains at or above the first threshold for a certain period of time has not continued. This certain period of time is predetermined. The reception determination unit 32 may also determine whether or not the wireless signal C has been received from the transmitting device 10 by other determination methods.

[0034] The reception determination unit 33 determines whether or not the wireless signal H has been received. The reception determination unit 33 makes this determination, that is, whether or not the wireless signal H has been received from the transmitting device 20, based on the radio waves received by the communication unit 31 from the transmitting device 20. For example, the reception determination unit 33 determines that the wireless signal H has been received from the transmitting device 20, i.e., that the wireless signal H has been received, if the value indicating the strength of the radio waves received by the communication unit 31 from the transmitting device 20 is equal to or greater than the second threshold. The reception determination unit 33 determines that the wireless signal H has not been received from the transmitting device 20, i.e., that the wireless signal H has not been received, if the value indicating the strength of the radio waves received by the communication unit 31 from the transmitting device 20 is less than the second threshold. The second threshold is set in advance. If the communication unit 31 has not received radio waves from the transmitting device 20, the reception determination unit 33 determines that the wireless signal H has not been received from the transmitting device 20.

[0035] When the transmitting device 20 emits discrete radio waves such as a pulse train, the reception determination unit 33 may use the instantaneous value of the radio wave intensity received by the communication unit 31 from the transmitting device 20 as a value indicating the intensity of the radio waves, or it may use a value obtained by smoothing the said instantaneous value.

[0036] As another example, the reception determination unit 33 may determine that the wireless signal H has been received from the transmitting device 20 if the value indicating the strength of the radio waves received by the communication unit 31 from the transmitting device 20 remains at or above a second threshold for a certain period of time. The reception determination unit 33 may also determine that the wireless signal H has not been received from the transmitting device 20 if the value indicating the strength of the radio waves received by the communication unit 31 from the transmitting device 20 is less than the second threshold, or if the state in which the value remains at or above the second threshold for a certain period of time has not continued. This certain period of time is predetermined. The reception determination unit 33 may also determine whether or not the wireless signal H has been received from the transmitting device 20 by other determination methods.

[0037] The status identification unit 34 identifies the detection status for the transmitter 10 and the transmitter 20. The statuses identified by the status identification unit 34 include, for example, "not detected," "car detected," "landing detected," "both detected," "car detection waiting," and "car departure waiting." The mobile terminal 30 is equipped with a function to manage the transitions between these statuses.

[0038] The functions of the detection system 1 will be explained in detail below, with reference to Figures 3 to 5. Figures 3 and 4 are flowcharts showing examples of the operation of the mobile terminal 30. Figures 3 and 4 show a series of processes performed in application A. Figure 5 is a diagram showing examples of state transitions identified by the state identification unit 34. In Figure 5, "C: Present" means "Wireless signal C has been received." "C: Absent" means "Wireless signal C has not been received." Similarly, "H: Present" means "Wireless signal H has been received." "H: Absent" means "Wireless signal H has not been received."

[0039] In the mobile terminal 30, first, the reception determination unit 33 determines whether or not it has received a wireless signal H from the transmitting device 20 (S101). If the reception determination unit 33 determines that no wireless signal H has been received (No. in S101), the reception determination unit 32 determines whether or not it has received a wireless signal C from the transmitting device 10 (S102). If the reception determination unit 32 determines in S102 that no wireless signal C has been received (No. in S102), the state identification unit 34 determines that it is in an undetected state. The undetected state indicates that neither the transmitting device 10 nor the transmitting device 20 has been detected.

[0040] If the reception determination unit 32 determines in S102 that wireless signal C has been received (Yes in S102), the state determination unit 34 determines that the elevator car detection standby state is in effect. The elevator car detection standby state indicates that the elevator is waiting to determine whether the transmitter 10 has detected the signal.

[0041] Furthermore, if the result in S102 is "Yes," it is determined whether or not time T1 (the first time period) has elapsed (S103). Time T1 is set in advance. For example, time T1 is a few seconds. Preferably, time T1 is 1 second or longer.

[0042] If time T1 has not elapsed since S102 was determined to be Yes, then S103 is determined to be No. If S103 is determined to be No, the reception determination unit 33 determines whether or not it has received a wireless signal H from the transmitting device 20 (S104). If S104 the reception determination unit 33 determines that no wireless signal H has been received (No in S104), the process returns to S102.

[0043] In other words, if the reception determination unit 32 continues to determine that radio signal C has been received and the reception determination unit 33 does not determine that radio signal H has been received during the time T1 elapsed after the initial determination of Yes in S102, then the determination of Yes is made in S103. In other words, the determination of Yes is made in S103 if the car detection standby state continues for only time T1. When the determination of Yes is made in S103, the state identification unit 34 identifies that the car detection state is in effect. The car detection state indicates that the transmitter 10 installed in the car 2 has been detected.

[0044] Furthermore, if the reception determination unit 32 determines that no wireless signal C has been received before time T1 has elapsed after S102 has determined Yes, and the reception determination unit 33 has not determined that wireless signal H has been received during that time, then S102 will be determined to be No. As described above, if S102 is determined to be No, the state identification unit 34 will identify that it is in an undetected state.

[0045] Furthermore, if the reception determination unit 33 determines that radio signal H has been received before time T1 has elapsed after S102 has determined that Yes, and if the reception determination unit 32 has continued to determine that radio signal C has been received during that time, then S104 will be determined to be Yes. If S104 is determined to be Yes, the state identification unit 34 will determine that both devices are detected. Both devices are detected, indicating that both transmitter 10 and transmitter 20 are being detected.

[0046] If the result in S103 is Yes, the reception determination unit 32 determines whether or not it has received the radio signal C from the transmitting device 10 (S105). If the reception determination unit 32 determines that no radio signal C has been received while the car is detected, the result in S105 is No. If the result in S105 is No, the state identification unit 34 determines that the state is not detected.

[0047] If the reception determination unit 32 determines that radio signal C has been received even after S103 has determined Yes, then S105 will also determine Yes. If S105 determines Yes, then the reception determination unit 33 determines whether or not radio signal H has been received from the transmitting device 20 (S106). If the reception determination unit 33 determines that radio signal H has not been received while the elevator car is detected, then S106 will determine No. If S106 determines No, then the process returns to S105.

[0048] When the receiving determination unit 33 determines that a wireless signal H has been received while the car is in the car detection state, it is determined as Yes in S106. When it is determined as Yes in S106, the departure detection unit 35 detects that the user of the mobile terminal 30 has left the house (S107). Also, when it is determined as Yes in S106, the state identification unit 34 determines that both detection states are in effect.

[0049] On the other hand, if the reception determination unit 33 determines in S101 that the wireless signal H has been received (Yes in S101), the state determination unit 34 determines that the landing is detected. The landing detection state indicates that the transmitter 20 installed at the landing 6L has been detected. If Yes is determined in S101, as shown in Figure 4, the reception determination unit 32 determines whether or not the wireless signal C has been received from the transmitter 10 (S108).

[0050] If the reception determination unit 32 determines in S108 that no wireless signal C has been received (No. in S108), the reception determination unit 33 determines whether or not wireless signal H has been received from the transmitting device 20 (S109). That is, even after the state identification unit 34 has determined that the landing detection state has been reached, the presence or absence of reception of wireless signal H is determined. If the reception determination unit 33 has determined that wireless signal H has been received even after the determination of Yes in S101, then the determination of Yes is made in S109. If the determination of Yes is made in S109, the process returns to S108.

[0051] When the landing detection state is active, if the reception determination unit 33 determines that no wireless signal H has been received, it is determined as No in S109. If it is determined as No in S109, the state identification unit 34 determines that it is in an undetected state. If it is determined as No in S109, the process returns to S101.

[0052] When the reception determination unit 32 determines in S108 that wireless signal C has been received (Yes in S108), the state determination unit 34 determines that both signals are detected.

[0053] Even after the state identification unit 34 determines that both signals are detected, it is determined whether or not wireless signal C and wireless signal H have been received. That is, if it is determined to be Yes in S104, S106, or S108, the reception determination unit 32 determines whether or not wireless signal C has been received from the transmitting device 10 (S110). If the reception determination unit 32 determines that wireless signal C has not been received after the state identification unit 34 has determined that both signals are detected, it is determined to be No in S110. If it is determined to be No in S110, the state identification unit 34 determines that the landing is detected.

[0054] If the result in S110 is No, the reception determination unit 33 determines whether or not it has received a wireless signal H from the transmitting device 20 (S111). If the reception determination unit 33 determines in S111 that wireless signal H has been received (Yes in S111), the process returns to S110. If the reception determination unit 33 determines in S111 that wireless signal H has not been received (No in S111), the state identification unit 34 determines that it is in an undetected state. If the result in S111 is No, the process returns to S101.

[0055] If the reception determination unit 32 determines in S110 that wireless signal C has been received (Yes in S110), the reception determination unit 33 determines whether or not wireless signal H has been received from the transmitting device 20 (S112). If the reception determination unit 33 determines in S112 that wireless signal H has been received (Yes in S112), the process returns to S110. If the reception determination unit 33 determines in S112 that wireless signal H has not been received (No in S112), the state identification unit 34 identifies that the car departure standby state is in which the system is waiting for the transmitting device 10 to not detect anything.

[0056] Furthermore, if the result in S112 is "No", it is determined whether or not time T2 (second time) has elapsed (S113). Time T2 is set in advance. For example, time T2 is a few seconds. Preferably, time T2 is 1 second or longer.

[0057] If time T2 has not elapsed since S112 was determined to be No, then S113 is determined to be No. If S113 is determined to be No, the reception determination unit 33 determines whether or not it has received a wireless signal H from the transmitting device 20 (S114). If the reception determination unit 33 determines in S114 that wireless signal H has been received (Yes in S114), the state identification unit 34 determines that both detection states are in effect. If S114 is determined to be Yes, the process returns to S110.

[0058] If the reception determination unit 33 determines in S114 that no wireless signal H has been received (No in S114), the reception determination unit 32 determines whether or not wireless signal C has been received from the transmitting device 10 (S115). If the reception determination unit 32 determines in S115 that wireless signal C has been received (Yes in S115), the process returns to S113. If the reception determination unit 32 determines in S115 that no wireless signal C has been received (No in S115), the state identification unit 34 determines that the state is undetected. If No is determined in S115, the process returns to S101.

[0059] In other words, if the reception determination unit 32 continues to determine that wireless signal C has been received and the reception determination unit 33 does not determine that wireless signal H has been received during the time T2 elapsed after the initial determination of No in S112, then the determination of Yes is made in S113. In other words, the determination of Yes is made in S113 if the waiting state for leaving the car continues for only time T2. When the determination of Yes is made in S113, the return-home detection unit 36 ​​detects that the user of the mobile terminal 30 has returned home (S116).

[0060] Furthermore, if the result in S113 is determined to be Yes, the state identification unit 34 identifies that the cage detection state is active. If the result in S113 is determined to be Yes, the process returns to S105.

[0061] In Example E1, as explained using Figures 1 to 5, a system in which a transmitter 10 is installed in a vertically moving car 2 can accurately detect when a user of a mobile terminal 30 leaves or returns home.

[0062] In other words, in the detection system 1, the state determination unit 34 determines that the elevator car is detected if the reception determination unit 33 has not determined that the wireless signal H has been received, and the reception determination unit 32 has continuously determined that the wireless signal C has been received for a first hour. Then, after the elevator car is detected, the departure detection unit 35 detects that the user of the mobile terminal 30 has left the building if the reception determination unit 33 determines that the wireless signal H has been received, without the reception determination unit 32 determining that the wireless signal C has not been received.

[0063] Furthermore, the status determination unit 34 determines that a bidirectional detection state is in effect when the reception determination unit 32 determines that a wireless signal C has been received after the reception determination unit 33 has determined that a wireless signal H has been received. The status determination unit 34 also determines that a bidirectional detection state is in effect when the reception determination unit 33 determines that a wireless signal H has been received after the reception determination unit 32 has determined that a wireless signal C has been received, but before that determination, i.e., the determination that a wireless signal C has been received, continues for a first hour. Then, after the status determination unit 35 determines that a bidirectional detection state is in effect, the reception determination unit 33 determines that a wireless signal H has not been received, and then the reception determination unit 32 determines that a wireless signal C has been received for a second hour, and the absence detection unit 35 detects that the user of the mobile terminal 30 has returned home.

[0064] In the detection system 1, where the transmitter 10 is installed in the elevator car 2, the signal strength received by the mobile terminal 30 is not always stable because the transmitter 10 moves up and down with the elevator car 2. Furthermore, because the doors of the elevator car 2 and the doors of the landing 6L open and close, there are obstacles present and absent. In example E1, the system can accurately detect when a user leaves the building, taking these conditions into consideration. It can also accurately detect when a user returns home.

[0065] In example E1, the mobile terminal 30 has the function to detect both leaving the house and returning home, but the mobile terminal 30 may have only the function to detect leaving the house. The mobile terminal 30 may have only the function to detect returning home.

[0066] Furthermore, the output unit 37 has the function of outputting the detection result from the outing detection unit 35 to the outside, and the function of outputting the detection result from the return home detection unit 36 ​​to the outside. The outside includes a monitoring system for the elderly or children, and home appliances, etc. In the monitoring system, notifications may be triggered by the detection result. In the home appliance, drive control and stop control may be triggered by the detection result.

[0067] Furthermore, the mobile terminal 30 may also be equipped with a passage detection unit 38, as shown in Figure 2. The passage detection unit 38 detects when a user of the mobile terminal 30 passes near the landing 6L. For example, the passage detection unit 38 detects the passage of a user of the mobile terminal 30 when it is determined to be No in S109. The passage detection unit 38 may also detect the passage of a user of the mobile terminal 30 when it is determined to be No in S115. Considering that the strength of the radio waves received by the mobile terminal 30 is not always stable, the passage detection unit 38 may also detect the passage of a user of the mobile terminal 30 when it is determined to be No in S105.

[0068] Next, Example E2 will be described using Figures 6 to 8. Figure 6 is a diagram showing another example of the mobile terminal 30 in Embodiment 1. The overall configuration of the detection system 1 in Example E2 is the same as the configuration shown in Figure 1. That is, the transmitter 10 is installed in the car 2 and emits a radio signal C by radio waves. The transmitter 20 is installed in the landing 6L and emits a radio signal H by radio waves. The mobile terminal 30 is capable of receiving radio signals C and H.

[0069] In the example shown in Figure 6, the mobile terminal 30 includes, for example, a communication unit 31, a period identification unit 39, a target identification unit 40, an outing detection unit 35, an return-to-home detection unit 36, an output unit 37, and a storage unit 44. The functions of the detection system 1 will be described in detail below, with reference to Figures 7 and 8. Figure 7 is a flowchart showing another example of the operation of the mobile terminal 30.

[0070] In the mobile terminal 30, the communication unit 31 receives radio waves emitted by the transmitter 10 and the transmitter 20 (S201). The results of the radio wave reception by the communication unit 31 are stored in the storage unit 44 (S202). Figure 8 shows an example of the radio wave reception results stored in the storage unit 44. As shown in Figure 8, in example E2, the mobile terminal 30 is equipped with a function to manage the history of received radio wave strength.

[0071] The period identification unit 39 identifies period P1 and period P2 based on the reception results stored in the storage unit 44, i.e., the radio wave reception results by the communication unit 31 (S203). Period P1 is the period during which radio signal C was received from the transmitting device 10. Period P2 is the period during which radio signal H was received from the transmitting device 20. For example, in S203, the period identification unit 39 identifies the start time ts1 (first start time) and end time te1 (first end time) of period P1. The period identification unit 39 identifies the start time ts2 (second start time) and end time te2 (second end time) of period P2. Figure 8 shows an example in which two periods P1 and two periods P2 are identified in S203.

[0072] In example E1 described above, the determination that wireless signal C was received from the transmitting device 10 was made when the value indicating the strength of the radio waves received by the communication unit 31 from the transmitting device 10 was equal to or greater than the first threshold. This is an example of determining whether or not wireless signal C has been received based on the absolute value of the radio wave strength. In example E2, whether or not wireless signal C has been received may be determined based on the overall (relative) trend of the strength of the received radio waves. Similarly, whether or not wireless signal H has been received may be determined based on the overall (relative) trend of the strength of the received radio waves.

[0073] Next, the target identification unit 40 identifies the period to be determined (S204). The period to be determined is the period for which it is determined whether or not the user went out, or whether or not the user returned home. The target identification unit 40 identifies the period to be determined based on the periods P1 and P2 identified by the period identification unit 39.

[0074] As an example, the target identification unit 40 identifies the period during which both radio signals C and H are not received, then both are received, and then both are not received again, as the period to be determined. Therefore, the period to be determined includes periods P1 and P2. In addition, at least a portion of period P1 overlaps with period P2 within the period to be determined.

[0075] Furthermore, the function for specifying the period to be judged may be provided as part of the functions of the outing detection unit 35. The function for specifying the period to be judged may also be provided as part of the functions of the return-home detection unit 36.

[0076] Next, the outing detection unit 35 determines whether the outing conditions are met for the period of determination identified by the target identification unit 40 (S205). The outing conditions are set in advance, taking into consideration that the strength of the radio waves received by the mobile terminal 30 is not always stable, and that there may or may not be obstacles present.

[0077] For example, the condition for going out is met if the start time ts1 is earlier than the start time ts2 and the end time te1 is later than the start time ts2, and the end time te1 is earlier than the end time te2 (Yes in S205). Also, the condition for going out is met if the start time ts1 is earlier than the start time ts2 and the end time te1 is later than the start time ts2, and the difference between the end times te1 and te2 is within 3 hours (Yes in S205).

[0078] The start time ts1 may be sufficiently earlier than the start time ts2. The third hour is, for example, the time from when the closing operation of the car 2 doors begins at landing 6L until the car 2 begins to move from landing 6L after the doors have fully closed. If the difference between the end times te1 and te2 is within the third hour, this includes cases where end time te1 is earlier than end time te2, end time te1 is later than end time te2, and end time te1 is the same as end time te2.

[0079] When the conditions for going out are met, the going-out detection unit 35 detects that the user of the mobile terminal 30 has gone out (S206).

[0080] If the condition for going out is not met for the period of determination identified by the target identification unit 40, the result is determined as No in S205. If the result is No in S205, the return-home detection unit 36 ​​determines whether or not the condition for returning home is met for the period of determination identified by the target identification unit 40 (S207). The return-home condition is set in advance, taking into consideration that the strength of the radio waves received by the mobile terminal 30 is not always stable, and that there may or may not be obstacles.

[0081] For example, the condition for returning home is met if the start time ts1 is earlier than the end time te2 and the end time te1 is later than the end time te2, and the start time ts2 is earlier than the start time ts1 (Yes in S207). Also, the condition for returning home is met if the start time ts1 is earlier than the end time te2 and the end time te1 is later than the end time te2, and the difference between the start times ts1 and ts2 is within 3 hours (Yes in S207).

[0082] If the difference between start times ts1 and ts2 is within 3 hours, this includes cases where start time ts1 is earlier than start time ts2, start time ts1 is later than start time ts2, and start time ts1 is the same as start time ts2.

[0083] When the conditions for returning home are met, the return-home detection unit 36 ​​detects that the user of the mobile terminal 30 has returned home (S208).

[0084] Even in Example E2, as explained using Figures 6 to 8, in a system where the transmitter 10 is installed in the vertically moving car 2, it is possible to accurately detect when the user of the mobile terminal 30 leaves or returns home.

[0085] In Example E2, the mobile terminal 30 has the function to detect both leaving the house and returning home, but the mobile terminal 30 may have only the function to detect leaving the house. The mobile terminal 30 may also have only the function to detect returning home. Furthermore, the output unit 37 has the same function as in Example E1, which outputs the detection result from the leaving-house detection unit 35 to the outside, and which outputs the detection result from the returning-home detection unit 36 ​​to the outside.

[0086] Some of the functions of the mobile terminal 30 described in Example E2 may be implemented by an inference device 50 as shown in Figure 9.

[0087] Figure 9 shows an example of an inference device 50. When the mobile terminal 30 is equipped with an inference device 50, the mobile terminal 30 further includes a trained model storage unit 51. The functions of the trained model storage unit 51 may be realized by the storage unit 44.

[0088] For example, the inference device 50 infers that the user of the mobile terminal 30 has gone out. The inference device 50 may also infer that the user of the mobile terminal 30 has returned home. The inference device 50 may infer that the user of the mobile terminal 30 has gone out and that the user has returned home. The inference device 50 comprises a data acquisition unit 52 and an inference unit 53.

[0089] Inference data is input to the inference device 50. The data acquisition unit 52 acquires the inference data input to the inference device 50. The inference data includes the reception results (reception history) of radio waves emitted by the transmitter 10 by the mobile terminal 30. Preferably, the reception results include the strength of the radio waves received by the mobile terminal 30 from the transmitter 10 and the time the radio waves were received from the transmitter 10. The inference data also includes the reception results (reception history) of radio waves emitted by the transmitter 20 by the mobile terminal 30. Preferably, the reception results include the strength of the radio waves received by the mobile terminal 30 from the transmitter 20 and the time the radio waves were received from the transmitter 20. The inference data is data in which these multiple pieces of information are related to each other. The inference data may also be provided to the inference device 50 as data plotted on a semi-logarithmic graph as shown in Figure 8.

[0090] The trained model is stored in the trained model storage unit 51. Preferably, the trained model is a model for inferring from inference data that the user of the mobile terminal 30 has gone out. In this example, the inference unit 53 uses the trained model stored in the trained model storage unit 51 to infer from the inference data acquired by the data acquisition unit 52 that the user of the mobile terminal 30 has gone out. By inputting the inference data acquired by the data acquisition unit 52 into the trained model, the inference unit 53 can output determination data from the inference data indicating whether or not the user of the mobile terminal 30 has gone out. For example, the determination data may include a statement that the user has gone out or that the user has not gone out.

[0091] The trained model may be a model for inferring from inference data that the user of the mobile terminal 30 has returned home. In this example, the inference unit 53 uses the trained model stored in the trained model storage unit 51 to infer from the inference data acquired by the data acquisition unit 52 that the user of the mobile terminal 30 has returned home. By inputting the inference data acquired by the data acquisition unit 52 into the trained model, the inference unit 53 can output judgment data from the inference data indicating whether or not the user of the mobile terminal 30 has returned home. For example, the judgment data may include a statement indicating that the user has returned home or that the user has not returned home.

[0092] The trained model may be a model for inferring from inference data whether the user of the mobile terminal 30 went out and whether they returned home. In this example, the inference unit 53 uses the trained model stored in the trained model storage unit 51 to infer from the inference data acquired by the data acquisition unit 52 whether the user of the mobile terminal 30 went out and whether they returned home. By inputting the inference data acquired by the data acquisition unit 52 into the trained model, the inference unit 53 can output judgment data from the inference data indicating whether the user of the mobile terminal 30 went out and whether they returned home. For example, the judgment data may include a statement that the user went out, that the user returned home, or that the user did not go out or return home.

[0093] As an example, the trained model is generated by the training device 60 described later. The trained model may also be a trained model generated by a device other than the training device 60. This device may include a server device managed by the management company of the detection system 1.

[0094] Figure 10 is a flowchart illustrating an example of the operation of the inference device 50. In the inference device 50, first, the data acquisition unit 52 acquires inference data (S301). Next, the inference unit 53 inputs the inference data acquired by the data acquisition unit 52 in S301 into the trained model stored in the trained model storage unit 51 (S302). Then, the inference unit 53 outputs the inference result obtained by inputting the inference data into the trained model in S302, i.e., the judgment data (S303).

[0095] The learning device 60 described above will be explained below. Figure 11 shows an example of the learning device 60. The learning device 60 may be included in the mobile terminal 30, or it may be provided in an external device that can communicate with the mobile terminal 30. The external device may include a specific single server device, a specific group of server devices, a cloud server, etc. The learning device 60 may also be provided within the detection system 1 as a separate device from the mobile terminal 30.

[0096] As an example, the learning device 60 generates a trained model for inferring that the user of the mobile terminal 30 has gone out. The learning device 60 may also generate a trained model for inferring that the user of the mobile terminal 30 has returned home. The learning device 60 may generate a trained model for inferring that the user of the mobile terminal 30 has gone out and returned home. The learning device 60 comprises a data acquisition unit 61 and a model generation unit 62.

[0097] Training data is input to the learning device 60. The data acquisition unit 61 acquires the training data input to the learning device 60. The model generation unit 62 generates the trained model described above using the training data acquired by the data acquisition unit 61. The trained model generated by the model generation unit 62 is stored in the trained model storage unit 51.

[0098] As an example, supervised learning is adopted as the learning algorithm used by the model generation unit 62. Other known algorithms, such as unsupervised learning or semi-supervised learning, may be used as the learning algorithm. Deep learning, which learns to extract features themselves, may also be used as the learning algorithm. Other known methods, such as genetic programming, inductive logic programming, or support vector machines, may also be used as the learning algorithm.

[0099] The following describes an example in which supervised learning is adopted as the learning algorithm used by the model generation unit 62. Supervised learning is a method in which pairs of input and result (label) data are provided to the learning device 60, and features in these training data are learned, and the result is inferred from the input.

[0100] In this example, the training data includes the reception results (reception history) of radio waves emitted by the transmitter 10 by the mobile terminal 30. Preferably, these reception results include the strength of the radio waves received by the mobile terminal 30 from the transmitter 10 and the time at which the radio waves were received. The training data also includes the reception results (reception history) of radio waves emitted by the transmitter 20 by the mobile terminal 30. Preferably, these reception results include the strength of the radio waves received by the mobile terminal 30 from the transmitter 20 and the time at which the radio waves were received.

[0101] Furthermore, the training data includes judgment data as ground truth data. For example, the training data includes data indicating whether or not the user of the mobile terminal 30 has gone out, as ground truth data. In such a case, the model generation unit 62 generates a trained model for inferring whether or not the user of the mobile terminal 30 has gone out, based on the reception results of the radio waves emitted by the transmitter 10 and the radio waves emitted by the transmitter 20 by the mobile terminal 30.

[0102] As another example, the training data may include ground truth data indicating whether or not the user of the mobile terminal 30 has returned home. In such a case, the model generation unit 62 generates a trained model for inferring that the user of the mobile terminal 30 has returned home, based on the reception results of the radio waves emitted by the transmitter 10 and the radio waves emitted by the transmitter 20 by the mobile terminal 30.

[0103] As another example, the training data may include, as ground truth data, data indicating whether the user of the mobile terminal 30 went out and whether they returned home. In such a case, the model generation unit 62 generates a trained model for inferring whether the user of the mobile terminal 30 went out and returned home, based on the reception results of the radio waves emitted by the transmitter 10 and the radio waves emitted by the transmitter 20 by the mobile terminal 30.

[0104] Training data consists of data in which multiple pieces of information are interconnected. The received results included in the training data may be provided to the learning device 60 as data plotted on a semi-logarithmic graph, as shown in Figure 8.

[0105] As an example, let's describe an example of applying a neural network. The model generation unit 62 learns, for example, that the user of the mobile terminal 30 has gone out, through so-called supervised learning according to the neural network model.

[0106] A neural network consists of an input layer made up of multiple neurons, an intermediate layer (hidden layer) made up of multiple neurons, and an output layer made up of multiple neurons. The intermediate layer may be one layer or multiple layers. Figure 12 shows an example of a neural network applied to the learning device 60. Figure 12 shows an example of a three-layer neural network consisting of an input layer (X1-X3), an intermediate layer (Y1-Y2), and an output layer (Z1-Z3).

[0107] In the neural network shown in Figure 12, when multiple inputs are input to the input layer, their values ​​are multiplied by weight W1(w11-w16) and input to the hidden layer. The result is then multiplied again by weight W2(w21-w26) and output from the output layer. This output result varies depending on the values ​​of weights W1 and W2.

[0108] In the example shown in Figure 11, the neural network learns, for example, that the user of the mobile terminal 30 has gone out, through supervised learning based on the training data acquired by the data acquisition unit 61. In this example, the training data is created based on the reception results of radio waves emitted by the transmitter 10 and the transmitter 20, and judgment data indicating whether or not the user of the mobile terminal 30 has gone out. The neural network learns by inputting the reception results of radio waves emitted by the transmitter 10 and the transmitter 20 into the input layer and adjusting weights W1 and W2 so that the result output from the output layer is close to the correct data.

[0109] The model generation unit 62 generates a trained model by performing the learning described above and outputs the generated trained model. The trained model output from the model generation unit 62 is stored in the trained model storage unit 51.

[0110] Figure 13 is a flowchart illustrating an example of the operation of the learning device 60. In the learning device 60, first, the data acquisition unit 61 acquires training data (S401). Next, the model generation unit 62 uses the training data acquired by the data acquisition unit 61 in S401 to perform supervised learning and generate a trained model (S402). Then, the trained model generated by the model generation unit 62 is stored in the trained model storage unit 51 (S403).

[0111] Next, we will explain an example in which unsupervised learning is adopted as the learning algorithm used by the model generation unit 62. Unsupervised learning is a method in which features are learned from training data that does not contain results (labels) by providing the learning device 60 with training data.

[0112] In this example, the training data includes the reception results (reception history) of radio waves emitted by the transmitter 10 on the mobile terminal 30. Preferably, these reception results include the intensity of the radio waves received by the mobile terminal 30 from the transmitter 10 and the time at which the radio waves were received. The inference data also includes the reception results (reception history) of radio waves emitted by the transmitter 20 on the mobile terminal 30. Preferably, these reception results include the intensity of the radio waves received by the mobile terminal 30 from the transmitter 20 and the time at which the radio waves were received. The training data is data in which multiple pieces of information are related to each other. The reception results included in the training data may be provided to the learning device 60 as data plotted on a semi-logarithmic graph as shown in Figure 8.

[0113] The model generation unit 62 generates a trained model for inferring that the user of the mobile terminal 30 has gone out, for example, from training data created based on the reception results of radio waves emitted by the transmitter 10 and radio waves emitted by the transmitter 20 by the mobile terminal 30. As described above, the model generation unit 62 may also generate a trained model for inferring that the user of the mobile terminal 30 has returned home. The model generation unit 62 may also generate trained models for inferring that the user of the mobile terminal 30 has gone out and returned home.

[0114] As an example, we will describe an example in which the model generation unit 62 performs learning using unsupervised learning according to the K-means method of grouping. The K-means method is a non-hierarchical clustering algorithm that classifies a given number of clusters into k groups using the mean of the clusters.

[0115] Specifically, the K-means algorithm processes data in the following manner: First, each data point xi is randomly assigned to a cluster. Next, the center Vj of each cluster is calculated based on the assigned data. Then, the distance between each xi and each Vj is calculated, and each xi is reassigned to the cluster with the closest center. Finally, if there is no change in the cluster assignment of all xi in the above process, or if the amount of change is below a pre-set threshold, the process is considered to have converged and terminated.

[0116] Even when unsupervised learning is used as the learning algorithm by the model generation unit 62, the learning device 60 performs the same operations as shown in Figure 13. However, in S402, the model generation unit 62 performs unsupervised learning using the training data acquired by the data acquisition unit 61 in S401 and generates a trained model.

[0117] Next, Example E3 will be described using Figures 14 and 15. Figure 14 is a diagram showing another example of the detection system 1 in Embodiment 1. The detection system 1 shown in Figure 14 comprises a car 2, a control device 5, a transmitter 10, a portable terminal 30, and a server device 70. Similar to Example E1, the car 2 moves up and down in an elevator shaft 4 formed in the building 3. The transmitter 10 is installed in the car 2 and emits a wireless signal C by radio waves. The control device 5 controls the movement of the car 2.

[0118] Furthermore, the control device 5 can communicate with the server device 70 via the network. The mobile terminal 30 can communicate with the server device 70 via the network. The server device 70 may be a device located remotely from the building 3. The server device 70 may be a single device or may consist of multiple devices. The server device 70 may be a cloud server.

[0119] In Example E3, the control device 5 includes a position detection unit 7 and a position transmission unit 8. The position detection unit 7 detects the position of the elevator car 2. Since the elevator car 2 only moves up and down, the position of the elevator car 2 is synonymous with the height at which the elevator car 2 is located. The position transmission unit 8 transmits information indicating the position detected by the position detection unit 7 to the server device 70. Hereafter, this information will also be referred to as position information.

[0120] Figure 15 shows another example of the mobile terminal 30. As shown in Figure 15, in example E3, the mobile terminal 30 comprises a communication unit 31, a reception determination unit 32, and a time transmission unit 41.

[0121] In Example E3, the communication unit 31 has the function of receiving radio waves emitted by the transmitting device 10. The reception determination unit 32 determines whether or not the radio signal C has been received. The determination by the reception determination unit 32 may be based on the absolute value of the radio wave strength or on the relative trend of the radio wave strength. The time transmission unit 41 transmits information to the server device 70 indicating the time when the reception determination unit 32 determined that the radio signal C had been received. Hereafter, this information will also be referred to as time information.

[0122] The server device 70 includes a communication unit 71 and a detection unit 72. The communication unit 71 receives location information from the control device 5. The communication unit 71 receives time information from the mobile terminal 30. The detection unit 72 detects that the user of the mobile terminal 30 has left the building based on the location information received by the communication unit 71 from the control device 5 and the time information received from the mobile terminal 30. For example, the detection unit 72 identifies the time when the reception determination unit 32 determined that a wireless signal C had been received as the time when the user was in the elevator car 2. If the elevator car 2 has moved from a landing 6 other than landing 6L to landing 6L at the identified time, the detection unit 72 detects that the user has left the building.

[0123] The detection unit 72 may also detect that the user of the mobile terminal 30 has returned home based on the location information received by the communication unit 71 from the control device 5 and the time information received from the mobile terminal 30. For example, the detection unit 72 detects that the user has returned home if, at the time it has been determined that the user was in the car 2, the car 2 has moved from landing 6L to another landing 6. The detection unit 72 may also detect both that the user of the mobile terminal 30 has left and that they have returned home based on the location information received by the communication unit 71 from the control device 5 and the time information received from the mobile terminal 30.

[0124] The function of the detection unit 72 in Example E3 may be provided in the mobile terminal 30. In this case, the overall configuration of the detection system 1 is the same as the configuration shown in Figure 14. However, the server device 70 is not equipped with the detection unit 72. The server device 70, i.e., the communication unit 71, transfers the location information received from the control device 5 to the mobile terminal 30.

[0125] Figure 16 shows another example of the mobile terminal 30. The mobile terminal 30 comprises a communication unit 31, a reception determination unit 32, and a detection unit 42. The functions of the detection unit 42 are the same as those of the detection unit 72. That is, the detection unit 42 detects that the user of the mobile terminal 30 has left the premises based on time information indicating the time when the reception determination unit 32 determined that a wireless signal C had been received and location information transmitted by the server device 70. The detection unit 42 may also detect that the user of the mobile terminal 30 has returned home. The detection unit 42 may also detect that the user of the mobile terminal 30 has left the premises and has returned home.

[0126] Next, Example E4 will be described using Figures 17 and 18. Figure 17 is a diagram showing another example of the detection system 1 in Embodiment 1. The detection system 1 shown in Figure 17 comprises a car 2, a control device 5, a transmitter 10, and a portable terminal 30. Similar to Example E1, the car 2 moves up and down in an elevator shaft 4 formed in a building 3. The transmitter 10 is installed in the car 2 and emits a wireless signal C by radio waves. The control device 5 controls the movement of the car 2.

[0127] In Example E4, the control device 5 includes a position detection unit 7 and a position transmission unit 8. The position detection unit 7 detects the position of the car 2. The position transmission unit 8 transmits position information indicating the position detected by the position detection unit 7 to the transmitting device 10. Upon receiving the position information transmitted by the position transmission unit 8, the transmitting device 10 emits a wireless signal C containing the position information.

[0128] Figure 18 shows another example of the mobile terminal 30. As shown in Figure 18, in example E4, the mobile terminal 30 includes a receiving unit 43 and a detection unit 42.

[0129] The receiving unit 43 receives the wireless signal C emitted by the transmitting device 10. The functions of the receiving unit 43 may include the functions of the communication unit 31 and the reception determination unit 32 described above.

[0130] In Example E4, the detection unit 42 detects that the user of the mobile terminal 30 has left the house based on the wireless signal C received by the receiving unit 43. As described above, the wireless signal C includes location information. The detection unit 42 detects that the user has left the house if the wireless signal C received by the receiving unit 43 includes location information indicating that the elevator car 2 has moved from a landing 6 other than landing 6L to landing 6L. The detection unit 42 may also detect that the user has left the house after identifying the time the user was in the elevator car 2, similar to the example described above.

[0131] The detection unit 42 may also detect that the user of the mobile terminal 30 has returned home based on the wireless signal C received by the receiving unit 43. For example, the detection unit 42 detects that the user has returned home if the wireless signal C received by the receiving unit 43 includes location information indicating that the elevator car 2 has moved from landing 6L to a landing 6 other than landing 6L. The detection unit 42 may also detect both that the user of the mobile terminal 30 has left and that they have returned home based on the wireless signal C received by the receiving unit 43.

[0132] Figure 19 shows an example of the hardware resources of a mobile terminal 30. The mobile terminal 30 includes a processing circuit 80 as a hardware resource, which includes a processor 81 and memory 82. The processing circuit 80 may include multiple processors 81. The processing circuit 80 may also include multiple memory 82.

[0133] In this embodiment, the parts indicated by reference numerals 31 to 44 represent functions of the mobile terminal 30. The function of the storage unit 44 is realized by the memory 82. The functions of the parts indicated by reference numerals 31 to 43 can be realized by software, firmware, or a combination of software and firmware written as a program. The program is stored in the memory 82. The mobile terminal 30 realizes the functions of the parts indicated by reference numerals 31 to 43 by executing the program stored in the memory 82 using the processor 81 (computer).

[0134] The processor 81 is also called a CPU (Central Processing Unit), etc. For memory 82, semiconductor memory or the like may be used.

[0135] Figure 20 shows another example of the hardware resources of the mobile terminal 30. In the example shown in Figure 20, the mobile terminal 30 includes a processor 81, memory 82, and a processing circuit 80 including dedicated hardware 83. Figure 20 shows an example in which some of the functions of the mobile terminal 30 are implemented by the dedicated hardware 83. All of the functions of the mobile terminal 30 may also be implemented by the dedicated hardware 83.

[0136] The hardware resources of the control device 5 are the same as those shown in the example in Figure 19 or Figure 20. The control device 5 includes a processing circuit that includes a processor and memory as hardware resources. The processing circuit may include multiple processors. The processing circuit may include multiple memories. The control device 5 realizes the functions of each part shown by reference numerals 7 to 8 by executing a program stored in memory using a processor (computer). The control device 5 may include a processing circuit that includes a processor, memory, and dedicated hardware as hardware resources. Some or all of the functions of the control device 5 may be realized by dedicated hardware.

[0137] The hardware resources of the inference device 50 are the same as those shown in the example in Figure 19 or Figure 20. The inference device 50 includes a processing circuit that includes a processor and memory as hardware resources. The processing circuit may include multiple processors. The processing circuit may also include multiple memories. The inference device 50 realizes the functions of each part shown by reference numerals 52 to 53 by executing a program stored in memory using a processor (computer). The inference device 50 may also include a processing circuit that includes a processor, memory, and dedicated hardware as hardware resources. Some or all of the functions of the inference device 50 may be realized by dedicated hardware.

[0138] The hardware resources of the learning device 60 are the same as those shown in the example in Figure 19 or Figure 20. The learning device 60 includes a processing circuit that includes a processor and memory as hardware resources. The processing circuit may include multiple processors. The processing circuit may also include multiple memories. The learning device 60 realizes the functions of each part shown by reference numerals 61 to 62 by executing a program stored in memory using a processor (computer). The learning device 60 may also include a processing circuit that includes a processor, memory, and dedicated hardware as hardware resources. Some or all of the functions of the learning device 60 may be realized by dedicated hardware.

[0139] The hardware resources of the server device 70 are the same as those shown in the example in Figure 19 or Figure 20. The server device 70 includes a processing circuit that includes a processor and memory as hardware resources. The processing circuit may include multiple processors. The processing circuit may also include multiple memories. The server device 70 realizes the functions of each part shown by reference numerals 71 to 72 by executing a program stored in memory using the processor (computer). The server device 70 may also include a processing circuit that includes a processor, memory, and dedicated hardware as hardware resources. Some or all of the functions of the server device 70 may be realized by dedicated hardware. [Explanation of Symbols]

[0140] 1 Detection system, 2 Car, 3 Building, 3a Entrance / Exit, 4 Elevator shaft, 5 Control device, 6 Landing, 7 Position detection unit, 8 Position transmission unit, 10 Transmission device, 20 Transmission device, 30 Mobile terminal, 31 Communication unit, 32 Reception determination unit, 33 Reception determination unit, 34 State identification unit, 35 Outing detection unit, 36 Return home detection unit, 37 Output unit, 38 Passing detection unit, 39 Period identification unit, 40 Target identification unit, 41 Time transmission unit, 42 Detection unit, 43 Receiving unit, 44 Storage unit, 50 Inference device, 51 Trained model storage unit, 52 Data acquisition unit, 53 Inference unit, 60 Learning device, 61 Data acquisition unit, 62 Model generation unit, 70 Server device, 71 Communication unit, 72 detection unit, 80 processing circuit, 81 processor, 82 memory, 83 dedicated hardware

Claims

1. A car moving in an elevator shaft formed in a building, A first transmitting device is provided in the aforementioned cage and emits a first radio signal, A second transmitting device is installed at the landing leading to the entrance of the aforementioned building and emits a second radio signal, A portable terminal capable of receiving the first wireless signal and the second wireless signal, Equipped with, The aforementioned mobile terminal is A first reception determination unit that determines whether or not the first wireless signal has been received, A second reception determination unit that determines whether or not the second wireless signal has been received, A state determination unit identifies the car detection state when the second reception determination unit does not determine whether the second wireless signal has been received and the first reception determination unit determines whether the first wireless signal has been received for a first time, After the status determination unit determines that the cage detection state is in place, if the second reception determination unit determines that the second wireless signal has been received without the first reception determination unit determining that the first wireless signal has not been received, the outing detection unit detects that the user of the mobile terminal has left the house, A detection system equipped with [the following features].

2. The aforementioned mobile terminal further includes a unit for detecting when a person returns home, The state determination unit determines that both signals are detected when the second reception determination unit determines that the second wireless signal has been received, and then the first reception determination unit determines that the first wireless signal has been received. The detection system according to claim 1, wherein the return-home detection unit detects the return of the user of the mobile terminal when, after the state determination unit determines that both detection states are in effect, the second reception determination unit determines that there is no reception of the second wireless signal, and then the first reception determination unit determines that there is reception of the first wireless signal for a second period of time without the second reception determination unit determining whether there is reception of the second wireless signal.

3. The aforementioned mobile terminal further includes a unit for detecting when a person returns home, The state determination unit determines that both signals are detected if the second reception determination unit determines that the second radio signal is received after the first reception determination unit determines that the first radio signal has been received and before the determination continues for a first time. The detection system according to claim 1, wherein the return-home detection unit detects the return of the user of the mobile terminal when, after the state determination unit determines that both detection states are in effect, the second reception determination unit determines that there is no reception of the second wireless signal, and then the first reception determination unit determines that there is reception of the first wireless signal for a second period of time without the second reception determination unit determining whether there is reception of the second wireless signal.

4. A car moving in an elevator shaft formed in a building, A first transmitting device is provided in the aforementioned cage and emits a first radio signal, A second transmitting device is installed at the landing leading to the entrance of the aforementioned building and emits a second radio signal, A portable terminal capable of receiving the first wireless signal and the second wireless signal, Equipped with, The aforementioned mobile terminal is A first reception determination unit that determines whether or not the first wireless signal has been received, A second reception determination unit that determines whether or not the second wireless signal has been received, A state determination unit that determines that both signals are detected when the second reception determination unit determines that the second wireless signal has been received, and then the first reception determination unit determines that the first wireless signal has been received, and then the second reception determination unit determines that the second wireless signal has been received before the determination by the first reception determination unit continues for a first time, After the state determination unit determines that both detection states are in effect, if the second reception determination unit determines that there is no reception of the second wireless signal, and then the first reception determination unit determines that there is reception of the first wireless signal for a second period of time without the second reception determination unit determining that there is reception of the second wireless signal, the return-home detection unit detects that the user of the mobile terminal has returned home, A detection system equipped with [the following features].

5. A first wireless signal is emitted from a first transmitting device installed in a car that moves in an elevator shaft formed in a building, A second radio signal is transmitted from a second transmitter located at the landing leading to the entrance of the aforementioned building, A mobile device capable of receiving, A first reception determination unit that determines whether or not the first wireless signal has been received, A second reception determination unit that determines whether or not the second wireless signal has been received, A state determination unit identifies the car detection state when the second reception determination unit does not determine whether the second wireless signal has been received and the first reception determination unit determines whether the first wireless signal has been received for a first time, After the state determination unit determines that the cage detection state is in place, if the second reception determination unit determines that the second wireless signal has been received without the first reception determination unit determining that the first wireless signal has not been received, the outing detection unit detects that the user has left the premises, A mobile device equipped with [a specific feature / ability].

6. A first wireless signal is emitted from a first transmitting device installed in a car that moves in an elevator shaft formed in a building, A second radio signal is transmitted from a second transmitter located at the landing leading to the entrance of the aforementioned building, A mobile device capable of receiving, A first reception determination unit that determines whether or not the first wireless signal has been received, A second reception determination unit that determines whether or not the second wireless signal has been received, A state determination unit that determines that both signals are detected when the second reception determination unit determines that the second wireless signal has been received, and then the first reception determination unit determines that the first wireless signal has been received, and then the second reception determination unit determines that the second wireless signal has been received before the determination by the first reception determination unit continues for a first time, After the state determination unit determines that both detection states are in effect, if the second reception determination unit determines that there is no reception of the second wireless signal, and then the first reception determination unit determines that there is reception of the first wireless signal for a second period of time without the second reception determination unit determining that there is reception of the second wireless signal, the return-home detection unit detects the user's return home, A mobile device equipped with [a specific feature / ability].

7. A car moving in an elevator shaft formed in a building, A first transmitting device is provided in the aforementioned cage and emits a first radio signal by radio waves, A second transmitting device is installed at the landing leading to the entrance of the aforementioned building, and emits a second radio signal by radio waves, Mobile devices and Equipped with, The aforementioned mobile terminal is A communication unit that receives radio waves emitted by the first transmitting device and radio waves emitted by the second transmitting device, A period identification unit that identifies a first start time and a first end time of the period during which the first radio signal was received, and a second start time and a second end time of the period during which the second radio signal was received, based on the radio wave reception results by the communication unit, If the first start time is earlier than the second start time and the first end time is later than the second start time, the mobile terminal user's departure detection unit detects when the first end time is earlier than the second end time and when the difference between the first end time and the second end time is within three hours. Equipped with, The detection system wherein the third time is equal to the time from when the closing operation of the elevator car door is started at the landing until the elevator car begins to move away from the landing after the door is fully closed.

8. If the difference is within the third time, If the first end time is earlier than the second end time, If the first completion time is later than the second completion time, and If the first end time is the same as the second end time The detection system according to claim 7, which includes the following:

9. The detection system according to claim 7 or 8, wherein the mobile terminal further comprises a return-home detection unit that detects the return of the user of the mobile terminal if the first start time is earlier than the second end time and the first end time is later than the second end time, or if the second start time is earlier than the first start time.

10. The detection system according to claim 7 or 8, wherein the mobile terminal further comprises a return-home detection unit that detects the return of the user of the mobile terminal if the first start time is earlier than the second end time and the first end time is later than the second end time, and the difference between the first start time and the second start time is within the third hour.

11. A car moving in an elevator shaft formed in a building, A first transmitting device is provided in the aforementioned cage and emits a first radio signal by radio waves, A second transmitting device is installed at the landing leading to the entrance of the aforementioned building, and emits a second radio signal by radio waves, Mobile devices and Equipped with, The aforementioned mobile terminal is A communication unit that receives radio waves emitted by the first transmitting device and radio waves emitted by the second transmitting device, A period identification unit that identifies a first start time and a first end time of the period during which the first radio signal was received, and a second start time and a second end time of the period during which the second radio signal was received, based on the radio wave reception results by the communication unit, If the first start time is earlier than the second end time and the first end time is later than the second end time, the return-home detection unit detects the return of the user of the mobile terminal in the case where the second start time is earlier than the first start time and the difference between the first start time and the second start time is within three hours, Equipped with, The detection system wherein the third time is equal to the time from when the closing operation of the elevator car door is started at the landing until the elevator car begins to move away from the landing after the door is fully closed.

12. If the difference is within the third time, If the first start time is earlier than the second start time, If the first start time is later than the second start time, and If the first start time is the same as the second start time The detection system according to claim 11, which includes the following:

13. A data acquisition unit that acquires data for inference, An inference unit that uses a trained model to infer from the inference data that the user of a mobile device has gone out, outputs determination data indicating whether or not the user has gone out from the inference data acquired by the data acquisition unit, Equipped with, The inference data includes the reception results of the radio waves emitted by the first transmitting device and the reception results of the radio waves emitted by the second transmitting device, as determined by the mobile terminal. The first transmitter is installed in a car that moves in an elevator shaft formed in a building. The second transmitting device is an inference device installed at a landing leading to the entrance / exit of the building.

14. The aforementioned trained model is a model for inferring from the inference data that the user went out and returned home. The inference device according to claim 13, wherein the inference unit outputs determination data indicating whether the user has gone out and whether the user has returned home, based on the inference data acquired by the data acquisition unit.

15. A data acquisition unit that acquires data for inference, An inference unit that uses a trained model to infer from the inference data that the user of a mobile device has returned home, outputs determination data indicating whether or not the user has returned home from the inference data acquired by the data acquisition unit, Equipped with, The inference data includes the reception results of the radio waves emitted by the first transmitting device and the reception results of the radio waves emitted by the second transmitting device, as determined by the mobile terminal. The first transmitter is installed in a car that moves in an elevator shaft formed in a building. The second transmitting device is an inference device installed at a landing leading to the entrance / exit of the building.

16. A data acquisition unit that acquires training data, A model generation unit generates a trained model for inferring from the training data that a user of a mobile device has left or returned home, using the training data acquired by the data acquisition unit. Equipped with, The aforementioned learning data includes the reception results of radio waves emitted by the first transmitting device and the reception results of radio waves emitted by the second transmitting device, as determined by the mobile terminal. The first transmitting device is installed in a car that moves in an elevator shaft formed in a building. The second transmitting device is a learning device installed at a landing leading to the entrance of the building.

17. The learning device according to claim 16, wherein the trained model is a model for inferring from the training data that the user went out and returned home.

18. A data acquisition unit that acquires learning data including the reception results of radio waves emitted by a first transmitter and a second transmitter, and determination data indicating whether or not the user of the mobile terminal has gone out, A model generation unit generates a trained model for inferring that the user has gone out, using the training data acquired by the data acquisition unit and the reception results of the radio waves emitted by the first transmitter and the radio waves emitted by the second transmitter, by the mobile terminal. Equipped with, The first transmitting device is installed in a car that moves in an elevator shaft formed in a building. The second transmitting device is a learning device installed at a landing leading to the entrance of the building.

19. The aforementioned determination data is data indicating whether the user went out or returned home, The learning device according to claim 18, wherein the trained model is a model for inferring that the user has gone out and returned home.

20. A data acquisition unit that acquires learning data including the reception results of radio waves emitted by a first transmitter and a second transmitter, and determination data indicating whether or not the user of the mobile terminal has returned home, A model generation unit generates a trained model for inferring that the user has returned home, using the training data acquired by the data acquisition unit and based on the reception results of the radio waves emitted by the first transmitter and the radio waves emitted by the second transmitter, by the mobile terminal. Equipped with, The first transmitting device is installed in a car that moves in an elevator shaft formed in a building. The second transmitting device is a learning device installed at a landing leading to the entrance of the building.

21. A car moving along the elevator shaft, A transmitting device that emits a wireless signal is provided in the aforementioned cage, A control device for controlling the movement of the aforementioned cage, A server device capable of communicating with the control device, A portable terminal capable of communicating with the aforementioned server device, Equipped with, The control device is A position detection unit for detecting the position of the basket, A position transmission unit transmits position information indicating the position detected by the position detection unit to the server device, Equipped with, The aforementioned mobile terminal is A reception determination unit that determines whether or not the aforementioned wireless signal has been received, A time transmission unit transmits time information indicating the time when the reception determination unit determined that the wireless signal was received to the server device. Equipped with, The server device is a detection system equipped with a detection unit that detects when the user of the mobile terminal leaves or returns home, based on the location information from the control device and the time information from the mobile terminal.

22. The detection system according to claim 21, wherein the detection unit detects when the user of the mobile terminal leaves the house and returns home based on the location information from the control device and the time information from the mobile terminal.

23. A car moving along the elevator shaft, A transmitting device that emits a wireless signal is provided in the aforementioned cage, A control device for controlling the movement of the aforementioned cage, A server device capable of communicating with the control device, A portable terminal capable of communicating with the aforementioned server device, Equipped with, The control device is A position detection unit for detecting the position of the basket, A position transmission unit transmits position information indicating the position detected by the position detection unit to the server device, Equipped with, The server device transfers the location information from the control device to the mobile terminal. The aforementioned mobile terminal is A reception determination unit that determines whether or not the aforementioned wireless signal has been received, A detection unit detects when the user of the mobile terminal leaves or returns home, based on time information indicating the time when the reception determination unit determined that the wireless signal was received and the location information from the server device. A detection system equipped with [the following features].

24. The detection system according to claim 23, wherein the detection unit detects when the user of the mobile terminal leaves and returns home based on the time information and the location information from the server device.

25. A car moving along the elevator shaft, A control device for controlling the movement of the aforementioned cage, A transmitting device that emits a wireless signal is provided in the aforementioned cage, Mobile devices and Equipped with, The control device includes a position detection unit for detecting the position of the basket, The aforementioned mobile terminal is A receiving unit that receives the wireless signal emitted by the transmitting device, A detection unit that detects when the user of the mobile terminal leaves or returns home based on the wireless signal received by the receiving unit, Equipped with, A detection system in which the wireless signal emitted by the transmitting device includes position information indicating the position detected by the position detection unit.

26. The detection system according to claim 25, wherein the detection unit detects when the user of the mobile terminal leaves and returns home based on the wireless signal received by the receiving unit.

Images